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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.196 by sf-exg, Tue Jan 10 18:50:14 2012 UTC vs.
Revision 1.253 by sf-exg, Sun Dec 30 15:52:37 2012 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
20	* You should have received a copy of the GNU General Public License	20	* You should have received a copy of the GNU General Public License
21	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
24		24
25	#include <cmath>
26	#include "../config.h" /* NECESSARY */	25	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	26	#include "rxvt.h" /* NECESSARY */
28		27
29	#if XRENDER
30	# include <X11/extensions/Xrender.h>
31	#endif
32
33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"
35	#endif
36
37	#ifndef RepeatPad
38	#define RepeatPad True
39	#endif
40
41	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
42	# if XRENDER
43	static Picture
44	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
45	{
46	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
47
48	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
49	XRenderPictureAttributes pa;
50	pa.repeat = True;
51	pa.component_alpha = component_alpha;
52	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
53
54	XFreePixmap (dpy, pixmap);
55
56	return mask;
57	}
58	# endif
59		29
60	void	30	void
61	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
62	{	32	{
63	#ifdef HAVE_AFTERIMAGE	33	# if BG_IMAGE_FROM_ROOT
64	if (original_asim)	34	delete root_img;
65	safe_asimage_destroy (original_asim);	35	root_img = 0;
66	if (asv)
67	destroy_asvisual (asv, 0);
68	if (asimman)
69	destroy_image_manager (asimman, 0);
70	#endif	36	# endif
71		37
72	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
73	if (pixbuf)	39	fimage.destroy ();
74	g_object_unref (pixbuf);
75	#endif	40	# endif
76
77	if (bg_pixmap)
78	XFreePixmap (dpy, bg_pixmap);
79	}	41	}
80		42
81	bool	43	bool
82	rxvt_term::bg_set_position (int x, int y)	44	rxvt_term::bg_window_size_sensitive ()
83	{	45	{
		46	# if BG_IMAGE_FROM_ROOT
		47	if (option (Opt_transparent))
		48	return true;
		49	# endif
84		50
85	if (target_x != x	51	# if BG_IMAGE_FROM_FILE
86	|| target_y != y)	52	if (fimage.img)
87	{	53	{
88	target_x = x;	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
89	target_y = y;	55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
90	return true;	57	return true;
91	}	58	}
		59	# endif
		60
92	return false;	61	return false;
93	}	62	}
94		63
95	bool	64	bool
96	rxvt_term::bg_window_size_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
97	{	66	{
98	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
99	if (bg_flags & BG_IS_TRANSPARENT)	68	if (option (Opt_transparent))
100	return true;	69	return true;
101	# endif	70	# endif
102		71
103	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
104	if (bg_flags & BG_IS_FROM_FILE)	73	if (fimage.img)
105	{	74	{
106	if (bg_flags & BG_IS_SIZE_SENSITIVE)	75	if (fimage.flags & IM_ROOT_ALIGN)
107	return true;	76	return true;
108	}	77	}
109	# endif	78	# endif
110		79
111	return false;	80	return false;
112	}	81	}
113		82
114	bool
115	rxvt_term::bg_window_position_sensitive ()
116	{
117	# ifdef ENABLE_TRANSPARENCY
118	if (bg_flags & BG_IS_TRANSPARENT)
119	return true;
120	# endif
121
122	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
123	if (bg_flags & BG_IS_FROM_FILE)
124	{
125	if (bg_flags & BG_ROOT_ALIGN)
126	return true;
127	}
128	# endif
129
130	return false;
131	}
132
133	# ifdef BG_IMAGE_FROM_FILE
134	static inline bool
135	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
136	{
137	if (geom_flags & flag)
138	{
139	if (new_value > 1000)
140	new_value = 1000;
141	if (new_value != scale)
142	{
143	scale = new_value;
144	return true;
145	}
146	}
147	return false;
148	}
149
150	static inline bool
151	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
152	{
153	if (geom_flags & flag)
154	{
155	if (new_value < -100)
156	new_value = -100;
157	else if (new_value > 200)
158	new_value = 200;
159	if (new_value != align)
160	{
161	align = new_value;
162	return true;
163	}
164	}
165	return false;
166	}
167
168	static inline int	84	static inline int
169	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
170	{	86	{
171	int diff = window_size - image_size;
172	int smaller = min (image_size, window_size);
173
174	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
175	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
176	else if (align > 100 && align <= 200)	89	else if (align > 100)
177	return (align - 100) * smaller / 100 + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
178	else if (align >= -100 && align < 0)	91	else
179	return (align + 100) * smaller / 100 - image_size;	92	return lerp (-image_size, 0, align + 100);
180	return 0;
181	}	93	}
182		94
183	static inline int	95	static void
184	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	96	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
185	{	97	{
186	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
187	dst_pos = pos;
188	dst_size = size;
189	if (pos < 0)
190	{
191	src_pos = -pos;
192	dst_pos = 0;
193	dst_size += pos;
194	}	99	{
195		100	flags = IM_TILE;
196	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
197	dst_size = target_size - dst_pos;	102	x = y = 0;
198	return src_pos;	103	}
		104	else if (!strcasecmp (style, "aspect-stretched"))
		105	{
		106	flags = IM_KEEP_ASPECT;
		107	w = h = windowScale;
		108	x = y = centerAlign;
		109	}
		110	else if (!strcasecmp (style, "stretched"))
		111	{
		112	flags = 0;
		113	w = h = windowScale;
		114	x = y = centerAlign;
		115	}
		116	else if (!strcasecmp (style, "centered"))
		117	{
		118	flags = 0;
		119	w = h = noScale;
		120	x = y = centerAlign;
		121	}
		122	else if (!strcasecmp (style, "root-tiled"))
		123	{
		124	flags = IM_TILE|IM_ROOT_ALIGN;
		125	w = h = noScale;
		126	x = y = 0;
		127	}
199	}	128	}
200		129
201	bool	130	bool
202	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
203	{	132	{
204	bool changed = false;	133	bool changed = false;
205	int geom_flags = 0;	134	int geom_flags = 0;
206	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
207	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
208	unsigned long new_flags = 0;	138	unsigned int h = v_scale;
		139	uint8_t new_flags = 0;
209		140
210	if (geom == NULL)	141	if (geom == NULL)
211	return false;	142	return false;
212		143
213	if (geom[0])	144	if (geom[0])
214	{	145	{
215	char **arr = rxvt_strsplit (':', geom);	146	char **arr = rxvt_strsplit (':', geom);
216		147
217	for (int i = 0; arr[i]; i++)	148	for (int i = 0; arr[i]; i++)
218	{	149	{
219	if (!strcasecmp (arr[i], "style=tiled"))	150	if (!strncasecmp (arr[i], "style=", 6))
220	{	151	{
221	new_flags = BG_TILE;	152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
222	w = h = noScale;
223	x = y = 0;
224	geom_flags = WidthValue|HeightValue|XValue|YValue;	153	geom_flags = WidthValue|HeightValue|XValue|YValue;
225	}	154	}
226	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
227	{
228	new_flags = BG_KEEP_ASPECT;
229	w = h = windowScale;
230	x = y = centerAlign;
231	geom_flags = WidthValue|HeightValue|XValue|YValue;
232	}
233	else if (!strcasecmp (arr[i], "style=stretched"))
234	{
235	new_flags = 0;
236	w = h = windowScale;
237	geom_flags = WidthValue|HeightValue;
238	}
239	else if (!strcasecmp (arr[i], "style=centered"))
240	{
241	new_flags = 0;
242	w = h = noScale;
243	x = y = centerAlign;
244	geom_flags = WidthValue|HeightValue|XValue|YValue;
245	}
246	else if (!strcasecmp (arr[i], "style=root-tiled"))
247	{
248	new_flags = BG_TILE|BG_ROOT_ALIGN;
249	w = h = noScale;
250	geom_flags = WidthValue|HeightValue;
251	}
252	else if (!strcasecmp (arr[i], "op=tile"))	155	else if (!strcasecmp (arr[i], "op=tile"))
253	new_flags |= BG_TILE;	156	new_flags |= IM_TILE;
254	else if (!strcasecmp (arr[i], "op=keep-aspect"))	157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
255	new_flags |= BG_KEEP_ASPECT;	158	new_flags |= IM_KEEP_ASPECT;
256	else if (!strcasecmp (arr[i], "op=root-align"))	159	else if (!strcasecmp (arr[i], "op=root-align"))
257	new_flags |= BG_ROOT_ALIGN;	160	new_flags |= IM_ROOT_ALIGN;
258		161
259	// deprecated	162	// deprecated
260	else if (!strcasecmp (arr[i], "tile"))	163	else if (!strcasecmp (arr[i], "tile"))
261	{	164	{
262	new_flags |= BG_TILE;	165	new_flags |= IM_TILE;
263	w = h = noScale;	166	w = h = noScale;
264	geom_flags |= WidthValue|HeightValue;	167	geom_flags |= WidthValue|HeightValue;
265	}	168	}
266	else if (!strcasecmp (arr[i], "propscale"))	169	else if (!strcasecmp (arr[i], "propscale"))
267	{	170	{
268	new_flags |= BG_KEEP_ASPECT;	171	new_flags |= IM_KEEP_ASPECT;
269	w = h = windowScale;	172	w = h = windowScale;
270	geom_flags |= WidthValue|HeightValue;	173	geom_flags |= WidthValue|HeightValue;
271	}	174	}
272	else if (!strcasecmp (arr[i], "hscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
273	{	176	{
274	new_flags |= BG_TILE;	177	new_flags |= IM_TILE;
275	w = windowScale;	178	w = windowScale;
276	h = noScale;	179	h = noScale;
277	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
278	}	181	}
279	else if (!strcasecmp (arr[i], "vscale"))	182	else if (!strcasecmp (arr[i], "vscale"))
280	{	183	{
281	new_flags |= BG_TILE;	184	new_flags |= IM_TILE;
282	h = windowScale;	185	h = windowScale;
283	w = noScale;	186	w = noScale;
284	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
285	}	188	}
286	else if (!strcasecmp (arr[i], "scale"))	189	else if (!strcasecmp (arr[i], "scale"))
…		…
294	x = y = centerAlign;	197	x = y = centerAlign;
295	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
296	}	199	}
297	else if (!strcasecmp (arr[i], "root"))	200	else if (!strcasecmp (arr[i], "root"))
298	{	201	{
299	new_flags |= BG_TILE|BG_ROOT_ALIGN;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
300	w = h = noScale;	203	w = h = noScale;
301	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
302	}	205	}
303		206
304	else	207	else
…		…
306	} /* done parsing ops */	209	} /* done parsing ops */
307		210
308	rxvt_free_strsplit (arr);	211	rxvt_free_strsplit (arr);
309	}	212	}
310		213
311	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;	214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
312		215
313	if (!update)	216	if (!update)
314	{	217	{
315	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
316	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
321	w = h = defaultScale;	224	w = h = defaultScale;
322	else if (!(geom_flags & HeightValue))	225	else if (!(geom_flags & HeightValue))
323	h = w;	226	h = w;
324	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
325	w = h;	228	w = h;
326
327	geom_flags |= WidthValue|HeightValue|XValue|YValue;
328	}
329
330	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
331	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
332	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
333	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
334
335	if (new_flags != bg_flags)
336	{	229	}
		230
		231	clamp_it (x, -100, 200);
		232	clamp_it (y, -100, 200);
		233
		234	if (flags != new_flags
		235	|| h_scale != w
		236	|| v_scale != h
		237	|| h_align != x
		238	|| v_align != y)
		239	{
337	bg_flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
338	changed = true;	245	changed = true;
339	}	246	}
340		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
341	return changed;	253	return changed;
342	}	254	}
343		255
344	void	256	void
345	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	257	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
346	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
347	int target_width = szHint.width;	261	int parent_width = szHint.width;
348	int target_height = szHint.height;	262	int parent_height = szHint.height;
		263	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		264	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
349		265
350	w = h_scale * target_width / 100;	266	w = h_scale * parent_width / 100;
351	h = v_scale * target_height / 100;	267	h = v_scale * parent_height / 100;
352		268
353	if (bg_flags & BG_KEEP_ASPECT)	269	if (image.flags & IM_KEEP_ASPECT)
354	{	270	{
355	float scale = (float)w / image_width;	271	float scale = (float)w / image_width;
356	min_it (scale, (float)h / image_height);	272	min_it (scale, (float)h / image_height);
357	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
358	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
359	}	275	}
360		276
361	if (!w) w = image_width;	277	if (!w) w = image_width;
362	if (!h) h = image_height;	278	if (!h) h = image_height;
363		279
364	if (bg_flags & BG_ROOT_ALIGN)	280	if (image.flags & IM_ROOT_ALIGN)
365	{	281	{
366	x = -target_x;	282	x = -parent_x;
367	y = -target_y;	283	y = -parent_y;
368	}	284	}
369	else	285	else
370	{	286	{
371	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
372	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
373	}
374
375	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
376	if (!(bg_flags & BG_TILE)
377	|| h_scale || v_scale
378	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
379	|| w > target_width || h > target_height)
380	bg_flags |= BG_IS_SIZE_SENSITIVE;
381	}
382
383	# ifdef HAVE_AFTERIMAGE
384	bool
385	rxvt_term::render_image (unsigned long tr_flags)
386	{
387	init_asv ();
388
389	ASImage *background = NULL;
390	ARGB32 background_tint = TINT_LEAVE_SAME;
391
392	# ifdef ENABLE_TRANSPARENCY
393	if (tr_flags)
394	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
395
396	if (tr_flags & BG_NEEDS_TINT)
397	{	289	}
398	ShadingInfo as_shade;	290	}
399	as_shade.shading = shade;
400		291
401	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	292	bool
402	if (bg_flags & BG_TINT_SET)	293	rxvt_term::render_image (rxvt_image &image)
403	tint.get (c);	294	{
404	as_shade.tintColor.red = c.r;
405	as_shade.tintColor.green = c.g;
406	as_shade.tintColor.blue = c.b;
407
408	background_tint = shading2tint32 (&as_shade);
409	}
410
411	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
412	{
413	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
414	ASA_XImage,
415	100, ASIMAGE_QUALITY_DEFAULT);
416	if (tmp)
417	{
418	destroy_asimage (&background);
419	background = tmp;
420	}
421	}
422	# endif
423
424	ASImage *result = 0;
425
426	int target_width = szHint.width;	295	int parent_width = szHint.width;
427	int target_height = szHint.height;	296	int parent_height = szHint.height;
428	int new_pmap_width = target_width;
429	int new_pmap_height = target_height;
430		297
431	int x = 0;	298	int x = 0;
432	int y = 0;	299	int y = 0;
433	int w = 0;	300	int w = 0;
434	int h = 0;	301	int h = 0;
435		302
436	if (original_asim)	303	get_image_geometry (image, w, h, x, y);
437	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
438		304
439	if (!original_asim
440	|| (!(bg_flags & BG_ROOT_ALIGN)
441	&& (x >= target_width
442	|| y >= target_height
443	|| x + w <= 0
444	|| y + h <= 0)))
445	{
446	if (background)
447	{
448	new_pmap_width = background->width;
449	new_pmap_height = background->height;
450	result = background;
451
452	if (background_tint != TINT_LEAVE_SAME)
453	{
454	ASImage *tmp = tile_asimage (asv, background, 0, 0,
455	target_width, target_height, background_tint,
456	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
457	if (tmp)
458	result = tmp;
459	}
460	}
461	else
462	new_pmap_width = new_pmap_height = 0;
463	}
464	else
465	{
466	result = original_asim;
467
468	if (w != original_asim->width
469	|| h != original_asim->height)
470	{
471	result = scale_asimage (asv, original_asim,
472	w, h,
473	ASA_XImage,
474	100, ASIMAGE_QUALITY_DEFAULT);
475	}
476
477	if (background == NULL)
478	{
479	if (bg_flags & BG_TILE)
480	{
481	/* if tiling - pixmap has to be sized exactly as the image,
482	but there is no need to make it bigger than the window! */
483	new_pmap_width = min (result->width, target_width);
484	new_pmap_height = min (result->height, target_height);
485
486	/* we also need to tile our image in both directions */
487	ASImage *tmp = tile_asimage (asv, result,
488	(int)result->width - x,
489	(int)result->height - y,
490	new_pmap_width,
491	new_pmap_height,
492	TINT_LEAVE_SAME, ASA_XImage,
493	100, ASIMAGE_QUALITY_DEFAULT);
494	if (tmp)
495	{
496	if (result != original_asim)
497	destroy_asimage (&result);
498
499	result = tmp;
500	}
501	}
502	}
503	else
504	{
505	/* if blending background and image - pixmap has to be sized same as target window */
506	ASImageLayer *layers = create_image_layers (2);
507
508	layers[0].im = background;
509	layers[0].clip_width = target_width;
510	layers[0].clip_height = target_height;
511	layers[0].tint = background_tint;
512	layers[1].im = result;
513
514	if (bg_flags & BG_TILE)
515	{
516	/* tile horizontally */
517	while (x > 0) x -= (int)result->width;
518	layers[1].dst_x = x;
519	layers[1].clip_width = result->width+target_width;
520	}
521	else
522	{
523	/* clip horizontally */
524	layers[1].dst_x = x;
525	layers[1].clip_width = result->width;
526	}
527
528	if (bg_flags & BG_TILE)
529	{
530	while (y > 0) y -= (int)result->height;
531	layers[1].dst_y = y;
532	layers[1].clip_height = result->height + target_height;
533	}
534	else
535	{
536	layers[1].dst_y = y;
537	layers[1].clip_height = result->height;
538	}
539
540	if (rs[Rs_blendtype])
541	{
542	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
543	if (layers[1].merge_scanlines == NULL)
544	layers[1].merge_scanlines = alphablend_scanlines;
545	}
546
547	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
548	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
549
550	if (tmp)
551	{
552	if (result != original_asim)
553	destroy_asimage (&result);
554
555	result = tmp;
556	}
557
558	free (layers);
559	}
560	}
561
562	bool ret = false;
563
564	if (result)
565	{
566	XGCValues gcv;
567	GC gc;
568
569	/* create Pixmap */
570	if (bg_pixmap == None
571	|| bg_pmap_width != new_pmap_width
572	|| bg_pmap_height != new_pmap_height)
573	{
574	if (bg_pixmap)
575	XFreePixmap (dpy, bg_pixmap);
576	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
577	bg_pmap_width = new_pmap_width;
578	bg_pmap_height = new_pmap_height;
579	}
580	/* fill with background color (if result's not completely overlapping it) */
581	gcv.foreground = pix_colors[Color_bg];
582	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
583
584	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
585	int dst_width = result->width, dst_height = result->height;
586	if (background == NULL)
587	{
588	if (!(bg_flags & BG_TILE))
589	{
590	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
591	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
592	}
593
594	if (dst_x > 0 || dst_y > 0
595	|| dst_x + dst_width < new_pmap_width
596	|| dst_y + dst_height < new_pmap_height)
597	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
598	}
599
600	/* put result on pixmap */
601	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
602	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
603
604	if (result != background && result != original_asim)
605	destroy_asimage (&result);
606
607	XFreeGC (dpy, gc);
608
609	ret = true;
610	}
611
612	if (background)
613	destroy_asimage (&background);
614
615	return ret;
616	}
617	# endif /* HAVE_AFTERIMAGE */
618
619	# ifdef HAVE_PIXBUF
620	bool
621	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
622	int src_x, int src_y, int dst_x, int dst_y,
623	unsigned int width, unsigned int height)
624	{
625	XImage *ximage;
626	char *data, *line;
627	int bytes_per_pixel;
628	int width_r, width_g, width_b;
629	int sh_r, sh_g, sh_b;
630	int rowstride;
631	int channels;
632	unsigned char *row;
633
634	if (visual->c_class != TrueColor)
635	return false;
636
637	if (depth == 24 || depth == 32)
638	bytes_per_pixel = 4;
639	else if (depth == 15 || depth == 16)
640	bytes_per_pixel = 2;
641	else
642	return false;
643
644	width_r = ecb_popcount32 (visual->red_mask);
645	width_g = ecb_popcount32 (visual->green_mask);
646	width_b = ecb_popcount32 (visual->blue_mask);
647
648	if (width_r > 8 || width_g > 8 || width_b > 8)
649	return false;
650
651	sh_r = ecb_ctz32 (visual->red_mask);
652	sh_g = ecb_ctz32 (visual->green_mask);
653	sh_b = ecb_ctz32 (visual->blue_mask);
654
655	if (width > INT_MAX / height / bytes_per_pixel)
656	return false;
657
658	data = (char *)malloc (width * height * bytes_per_pixel);
659	if (!data)
660	return false;
661
662	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
663	width, height, bytes_per_pixel * 8, 0);
664	if (!ximage)
665	{
666	free (data);
667	return false;
668	}
669
670	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
671
672	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
673	channels = gdk_pixbuf_get_n_channels (pixbuf);
674	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
675	line = data;
676
677	for (int y = 0; y < height; y++)
678	{
679	for (int x = 0; x < width; x++)
680	{
681	unsigned char *pixel = row + x * channels;
682	uint32_t value;
683
684	value = ((pixel[0] >> (8 - width_r)) << sh_r)
685	| ((pixel[1] >> (8 - width_g)) << sh_g)
686	| ((pixel[2] >> (8 - width_b)) << sh_b);
687
688	if (bytes_per_pixel == 4)
689	((uint32_t *)line)[x] = value;
690	else
691	((uint16_t *)line)[x] = value;
692	}
693
694	row += rowstride;
695	line += ximage->bytes_per_line;
696	}
697
698	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
699	XDestroyImage (ximage);
700	return true;
701	}
702
703	bool
704	rxvt_term::render_image (unsigned long tr_flags)
705	{
706	if (!pixbuf)
707	return false;
708
709	if (tr_flags
710	&& !(bg_flags & BG_HAS_RENDER))
711	return false;
712
713	GdkPixbuf *result;
714
715	int image_width = gdk_pixbuf_get_width (pixbuf);
716	int image_height = gdk_pixbuf_get_height (pixbuf);
717
718	int target_width = szHint.width;
719	int target_height = szHint.height;
720	int new_pmap_width = target_width;
721	int new_pmap_height = target_height;
722
723	int x = 0;
724	int y = 0;
725	int w = 0;
726	int h = 0;
727
728	get_image_geometry (image_width, image_height, w, h, x, y);
729
730	if (!(bg_flags & BG_ROOT_ALIGN)	305	if (!(image.flags & IM_ROOT_ALIGN)
731	&& (x >= target_width	306	&& (x >= parent_width
732	|| y >= target_height	307	|| y >= parent_height
733	|| x + w <= 0	308	|| x + w <= 0
734	|| y + h <= 0))	309	|| y + h <= 0))
735	return false;	310	return false;
736		311
737	result = pixbuf;	312	rxvt_img *img = image.img->scale (w, h);
738		313
739	if (w != image_width	314	if (image.flags & IM_TILE)
740	|| h != image_height)	315	img->repeat_mode (RepeatNormal);
741	{
742	result = gdk_pixbuf_scale_simple (pixbuf,
743	w, h,
744	GDK_INTERP_BILINEAR);
745	}
746
747	if (!result)
748	return false;
749
750	bool ret = false;
751
752	XGCValues gcv;
753	GC gc;
754	Pixmap root_pmap;
755
756	image_width = gdk_pixbuf_get_width (result);
757	image_height = gdk_pixbuf_get_height (result);
758
759	if (tr_flags)
760	{
761	root_pmap = bg_pixmap;
762	bg_pixmap = None;
763	}
764	else	316	else
765	{	317	img->repeat_mode (RepeatNone);
766	if (bg_flags & BG_TILE)	318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
767	{
768	new_pmap_width = min (image_width, target_width);
769	new_pmap_height = min (image_height, target_height);
770	}
771	}
772		319
773	if (bg_pixmap == None	320	if (bg_img)
774	|| bg_pmap_width != new_pmap_width	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
775	|| bg_pmap_height != new_pmap_height)
776	{
777	if (bg_pixmap)
778	XFreePixmap (dpy, bg_pixmap);
779	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
780	bg_pmap_width = new_pmap_width;
781	bg_pmap_height = new_pmap_height;
782	}
783		322
784	gcv.foreground = pix_colors[Color_bg];
785	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
786
787	if (gc)
788	{
789	if (bg_flags & BG_TILE)
790	{
791	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
792	pixbuf_to_pixmap (result, tile, gc,
793	0, 0,
794	0, 0,
795	image_width, image_height);
796
797	gcv.tile = tile;
798	gcv.fill_style = FillTiled;
799	gcv.ts_x_origin = x;
800	gcv.ts_y_origin = y;
801	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
802
803	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
804	XFreePixmap (dpy, tile);
805	}
806	else
807	{
808	int src_x, src_y, dst_x, dst_y;
809	int dst_width, dst_height;
810
811	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
812	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
813
814	if (dst_x > 0 || dst_y > 0
815	|| dst_x + dst_width < new_pmap_width
816	|| dst_y + dst_height < new_pmap_height)
817	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
818
819	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
820	pixbuf_to_pixmap (result, bg_pixmap, gc,
821	src_x, src_y,
822	dst_x, dst_y,
823	dst_width, dst_height);
824	}
825
826	#if XRENDER
827	if (tr_flags)
828	{
829	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
830		325
831	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);	326	delete bg_img;
		327	bg_img = img;
832		328
833	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
834
835	Picture mask = create_xrender_mask (dpy, vt, False, False);
836
837	XRenderColor mask_c;
838
839	mask_c.alpha = 0x8000;
840	mask_c.red =
841	mask_c.green =
842	mask_c.blue = 0;
843	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
844
845	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
846
847	XRenderFreePicture (dpy, src);
848	XRenderFreePicture (dpy, dst);
849	XRenderFreePicture (dpy, mask);
850	}
851	#endif
852
853	XFreeGC (dpy, gc);
854
855	ret = true;
856	}
857
858	if (result != pixbuf)
859	g_object_unref (result);
860
861	if (tr_flags)
862	XFreePixmap (dpy, root_pmap);
863
864	return ret;	329	return true;
865	}	330	}
866	# endif /* HAVE_PIXBUF */
867		331
868	bool	332	rxvt_image::rxvt_image ()
869	rxvt_term::bg_set_file (const char *file)	333	{
		334	alpha = 0xffff;
		335	flags = 0;
		336	h_scale =
		337	v_scale = defaultScale;
		338	h_align =
		339	v_align = defaultAlign;
		340
		341	img = 0;
		342	}
		343
		344	void
		345	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
870	{	346	{
871	if (!file || !*file)	347	if (!file || !*file)
872	return false;	348	return;
873		349
874	bool ret = false;
875	const char *p = strchr (file, ';');	350	const char *p = strchr (file, ';');
876		351
877	if (p)	352	if (p)
878	{	353	{
879	size_t len = p - file;	354	size_t len = p - file;
…		…
881	memcpy (f, file, len);	356	memcpy (f, file, len);
882	f[len] = '\0';	357	f[len] = '\0';
883	file = f;	358	file = f;
884	}	359	}
885		360
886	# ifdef HAVE_AFTERIMAGE	361	set_file (s, file);
887	if (!asimman)	362	alpha = 0x8000;
888	asimman = create_generic_imageman (rs[Rs_path]);	363	set_geometry (p ? p + 1 : "");
889	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	364	}
890	if (image)
891	{
892	if (original_asim)
893	safe_asimage_destroy (original_asim);
894	original_asim = image;
895	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
896	ret = true;
897	}
898	# endif
899		365
900	# ifdef HAVE_PIXBUF	366	void
901	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	367	rxvt_image::set_file (rxvt_screen *s, const char *file)
902	if (image)	368	{
903	{	369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
904	if (pixbuf)	370	delete img;
905	g_object_unref (pixbuf);	371	img = img2;
906	pixbuf = image;
907	bg_flags |= BG_IS_FROM_FILE;
908	ret = true;
909	}
910	# endif
911
912	if (ret)
913	{
914	if (p)
915	bg_set_geometry (p + 1);
916	else
917	bg_set_default_geometry ();
918	}
919
920	return ret;
921	}	372	}
922		373
923	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
924		375
925	# ifdef ENABLE_TRANSPARENCY
926	bool	376	bool
927	rxvt_term::bg_set_transparent ()	377	image_effects::set_blur (const char *geom)
928	{
929	if (!(bg_flags & BG_IS_TRANSPARENT))
930	{
931	bg_flags |= BG_IS_TRANSPARENT;
932	return true;
933	}
934
935	return false;
936	}
937
938	bool
939	rxvt_term::bg_set_blur (const char *geom)
940	{	378	{
941	bool changed = false;	379	bool changed = false;
942	unsigned int hr, vr;	380	unsigned int hr, vr;
943	int junk;	381	int junk;
944	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
961	{	399	{
962	changed = true;	400	changed = true;
963	v_blurRadius = vr;	401	v_blurRadius = vr;
964	}	402	}
965		403
966	if (h_blurRadius == 0 || v_blurRadius == 0)
967	bg_flags &= ~BG_NEEDS_BLUR;
968	else
969	bg_flags |= BG_NEEDS_BLUR;
970
971	return changed;	404	return changed;
972	}	405	}
973		406
974	void
975	rxvt_term::set_tint_shade_flags ()
976	{
977	rgba c;
978	bool has_shade = shade != 100;
979
980	bg_flags &= ~BG_TINT_FLAGS;
981
982	if (bg_flags & BG_TINT_SET)
983	{
984	tint.get (c);
985	if (!has_shade
986	&& (c.r <= 0x00ff || c.r >= 0xff00)
987	&& (c.g <= 0x00ff || c.g >= 0xff00)
988	&& (c.b <= 0x00ff || c.b >= 0xff00))
989	bg_flags |= BG_TINT_BITAND;
990	}
991
992	if (has_shade || (bg_flags & BG_TINT_SET))
993	bg_flags |= BG_NEEDS_TINT;
994	}
995
996	bool	407	bool
997	rxvt_term::bg_set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
998	{	409	{
999	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	410	if (!tint_set || tint != new_tint)
1000	{	411	{
1001	tint = new_tint;	412	tint = new_tint;
1002	bg_flags |= BG_TINT_SET;	413	tint_set = true;
1003	set_tint_shade_flags ();	414
1004	return true;	415	return true;
1005	}	416	}
1006		417
1007	return false;	418	return false;
1008	}	419	}
1009		420
1010	bool	421	bool
1011	rxvt_term::bg_set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
1012	{	423	{
1013	int new_shade = atoi (shade_str);	424	int new_shade = atoi (shade_str);
1014		425
1015	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
1016	if (new_shade < 0)	427	if (new_shade < 0)
1017	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
1018		429
1019	if (new_shade != shade)	430	if (new_shade != shade)
1020	{	431	{
1021	shade = new_shade;	432	shade = new_shade;
1022	set_tint_shade_flags ();
1023	return true;	433	return true;
1024	}	434	}
1025		435
1026	return false;	436	return false;
1027	}	437	}
1028		438
1029	#if XRENDER	439	# if BG_IMAGE_FROM_ROOT
1030	static void
1031	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1032	{
1033	double sigma = radius / 2.0;
1034	double scale = sqrt (2.0 * M_PI) * sigma;
1035	double sum = 0.0;
1036
1037	for (int i = 0; i < width; i++)
1038	{
1039	double x = i - width / 2;
1040	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1041	sum += kernel[i];
1042	}
1043
1044	params[0] = XDoubleToFixed (width);
1045	params[1] = XDoubleToFixed (1);
1046
1047	for (int i = 0; i < width; i++)
1048	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1049	}
1050	#endif
1051
1052	bool
1053	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
1054	{
1055	bool ret = false;
1056	#if XRENDER
1057	if (!(bg_flags & BG_HAS_RENDER_CONV))
1058	return false;
1059
1060	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1061	double *kernel = (double *)malloc (size * sizeof (double));
1062	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1063
1064	XRenderPictureAttributes pa;
1065	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1066
1067	pa.repeat = RepeatPad;
1068	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
1069	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
1070	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
1071	XFreePixmap (dpy, tmp);
1072
1073	if (kernel && params)
1074	{
1075	size = h_blurRadius * 2 + 1;
1076	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1077
1078	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1079	XRenderComposite (dpy,
1080	PictOpSrc,
1081	src,
1082	None,
1083	dst,
1084	0, 0,
1085	0, 0,
1086	0, 0,
1087	width, height);
1088
1089	::swap (src, dst);
1090
1091	size = v_blurRadius * 2 + 1;
1092	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1093	::swap (params[0], params[1]);
1094
1095	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1096	XRenderComposite (dpy,
1097	PictOpSrc,
1098	src,
1099	None,
1100	dst,
1101	0, 0,
1102	0, 0,
1103	0, 0,
1104	width, height);
1105
1106	ret = true;
1107	}
1108
1109	free (kernel);
1110	free (params);
1111	XRenderFreePicture (dpy, src);
1112	XRenderFreePicture (dpy, dst);
1113	#endif
1114	return ret;
1115	}
1116
1117	bool
1118	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1119	{
1120	bool ret = false;
1121
1122	if (bg_flags & BG_TINT_BITAND)
1123	{
1124	XGCValues gcv;
1125	GC gc;
1126
1127	/* In this case we can tint image server-side getting significant
1128	* performance improvements, as we eliminate XImage transfer
1129	*/
1130	gcv.foreground = Pixel (tint);
1131	gcv.function = GXand;
1132	gcv.fill_style = FillSolid;
1133	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1134	if (gc)
1135	{
1136	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1137	ret = true;
1138	XFreeGC (dpy, gc);
1139	}
1140	}
1141	# if XRENDER
1142	else if (bg_flags & BG_HAS_RENDER)
1143	{
1144	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1145
1146	if (bg_flags & BG_TINT_SET)
1147	tint.get (c);
1148
1149	if (shade <= 100)
1150	{
1151	c.r = c.r * shade / 100;
1152	c.g = c.g * shade / 100;
1153	c.b = c.b * shade / 100;
1154	}
1155	else
1156	{
1157	c.r = c.r * (200 - shade) / 100;
1158	c.g = c.g * (200 - shade) / 100;
1159	c.b = c.b * (200 - shade) / 100;
1160	}
1161
1162	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1163
1164	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1165
1166	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1167
1168	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1169
1170	XRenderColor mask_c;
1171
1172	mask_c.alpha = 0xffff;
1173	mask_c.red =
1174	mask_c.green =
1175	mask_c.blue = 0;
1176	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1177
1178	mask_c.alpha = 0;
1179	mask_c.red = 0xffff - c.r;
1180	mask_c.green = 0xffff - c.g;
1181	mask_c.blue = 0xffff - c.b;
1182	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1183
1184	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1185
1186	if (shade > 100)
1187	{
1188	mask_c.alpha = 0;
1189	mask_c.red =
1190	mask_c.green =
1191	mask_c.blue = 0xffff * (shade - 100) / 100;
1192	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1193
1194	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1195	}
1196
1197	ret = true;
1198
1199	XRenderFreePicture (dpy, mask_pic);
1200	XRenderFreePicture (dpy, overlay_pic);
1201	XRenderFreePicture (dpy, back_pic);
1202	}
1203	# endif
1204
1205	return ret;
1206	}
1207
1208	/*	440	/*
1209	* Builds a pixmap of the same size as the terminal window that contains	441	* Builds a pixmap of the same size as the terminal window that contains
1210	* the tiled portion of the root pixmap that is supposed to be covered by	442	* the tiled portion of the root pixmap that is supposed to be covered by
1211	* our window.	443	* our window.
1212	*/	444	*/
1213	unsigned long	445	bool
1214	rxvt_term::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
1215	{	447	{
1216	unsigned long result = 0;
1217
1218	/* root dimensions may change from call to call - but Display structure should	448	/* root dimensions may change from call to call - but Display structure should
1219	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
1220	*/	450	*/
1221	int screen = display->screen;	451	int screen = display->screen;
1222	int root_depth = DefaultDepth (dpy, screen);
1223	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
1224	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
1225	unsigned int root_pmap_width, root_pmap_height;
1226	int window_width = szHint.width;	454	int parent_width = szHint.width;
1227	int window_height = szHint.height;	455	int parent_height = szHint.height;
1228	int sx, sy;	456	int sx, sy;
1229	XGCValues gcv;
1230	GC gc;
1231		457
1232	sx = target_x;	458	sx = parent_x;
1233	sy = target_y;	459	sy = parent_y;
		460
		461	if (!root_img)
		462	return false;
1234		463
1235	/* check if we are outside of the visible part of the virtual screen : */	464	/* check if we are outside of the visible part of the virtual screen : */
1236	if (sx + window_width <= 0 || sy + window_height <= 0	465	if (sx + parent_width <= 0 || sy + parent_height <= 0
1237	|| sx >= root_width || sy >= root_height)	466	|| sx >= root_width || sy >= root_height)
1238	return 0;	467	return 0;
1239		468
1240	// validate root pixmap and get its size	469	while (sx < 0) sx += root_img->w;
1241	if (root_pixmap != None)	470	while (sy < 0) sy += root_img->h;
1242	{
1243	Window wdummy;
1244	int idummy;
1245	unsigned int udummy;
1246		471
1247	allowedxerror = -1;	472	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1248		473
1249	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	474	if (root_effects.need_blur ())
1250	root_pixmap = None;	475	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1251		476
1252	allowedxerror = 0;	477	if (root_effects.need_tint ())
1253	}	478	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1254		479
1255	Pixmap recoded_root_pmap = root_pixmap;
1256
1257	if (root_pixmap != None && root_depth != depth)
1258	{
1259	#if XRENDER
1260	if (bg_flags & BG_HAS_RENDER)
1261	{
1262	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1263
1264	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1265	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1266
1267	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	480	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1268	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);	481	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1269		482
1270	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	483	delete bg_img;
		484	bg_img = img;
1271		485
1272	XRenderFreePicture (dpy, src);
1273	XRenderFreePicture (dpy, dst);
1274	}
1275	else
1276	#endif
1277	recoded_root_pmap = None;
1278	}
1279
1280	if (recoded_root_pmap == None)
1281	return 0;
1282
1283	if (bg_pixmap == None
1284	|| bg_pmap_width != window_width
1285	|| bg_pmap_height != window_height)
1286	{
1287	if (bg_pixmap)
1288	XFreePixmap (dpy, bg_pixmap);
1289	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1290	bg_pmap_width = window_width;
1291	bg_pmap_height = window_height;
1292	}
1293
1294	/* straightforward pixmap copy */
1295	while (sx < 0) sx += root_pmap_width;
1296	while (sy < 0) sy += root_pmap_height;
1297
1298	gcv.tile = recoded_root_pmap;
1299	gcv.fill_style = FillTiled;
1300	gcv.ts_x_origin = -sx;
1301	gcv.ts_y_origin = -sy;
1302	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1303
1304	if (gc)
1305	{
1306	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1307	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1308
1309	if (!(bg_flags & BG_CLIENT_RENDER))
1310	{
1311	if (bg_flags & BG_NEEDS_BLUR)
1312	{
1313	if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
1314	result &= ~BG_NEEDS_BLUR;
1315	}
1316	if (bg_flags & BG_NEEDS_TINT)
1317	{
1318	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1319	result &= ~BG_NEEDS_TINT;
1320	}
1321	# ifndef HAVE_AFTERIMAGE
1322	if (result & BG_NEEDS_TINT)
1323	{
1324	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1325	if (ximage)
1326	{
1327	/* our own client-side tinting */
1328	tint_ximage (DefaultVisual (dpy, display->screen), ximage);
1329
1330	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1331	XDestroyImage (ximage);
1332	}
1333	}
1334	# endif
1335	} /* server side rendering completed */
1336
1337	XFreeGC (dpy, gc);
1338	}
1339
1340	if (recoded_root_pmap != root_pixmap)
1341	XFreePixmap (dpy, recoded_root_pmap);
1342
1343	return result;	486	return true;
1344	}	487	}
1345		488
1346	void	489	void
1347	rxvt_term::bg_set_root_pixmap ()	490	rxvt_term::bg_set_root_pixmap ()
1348	{	491	{
1349	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	492	delete root_img;
1350	if (new_root_pixmap == None)	493	root_img = rxvt_img::new_from_root (this);
1351	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1352
1353	root_pixmap = new_root_pixmap;
1354	}	494	}
1355	# endif /* ENABLE_TRANSPARENCY */	495	# endif /* BG_IMAGE_FROM_ROOT */
1356		496
1357	bool	497	void
1358	rxvt_term::bg_render ()	498	rxvt_term::bg_render ()
1359	{	499	{
1360	unsigned long tr_flags = 0;	500	if (bg_flags & BG_INHIBIT_RENDER)
		501	return;
1361		502
1362	bg_invalidate ();	503	delete bg_img;
1363	# ifdef ENABLE_TRANSPARENCY	504	bg_img = 0;
		505	bg_flags = 0;
		506
		507	if (!mapped)
		508	return;
		509
		510	# if BG_IMAGE_FROM_ROOT
		511	if (option (Opt_transparent))
		512	if (render_root_image ())
1364	if (bg_flags & BG_IS_TRANSPARENT)	513	bg_flags |= BG_IS_TRANSPARENT;
1365	{
1366	/* we need to re-generate transparency pixmap in that case ! */
1367	tr_flags = make_transparency_pixmap ();
1368	if (tr_flags == 0)
1369	return false;
1370	bg_flags |= BG_IS_VALID;
1371	}
1372	# endif	514	# endif
1373		515
1374	# ifdef BG_IMAGE_FROM_FILE	516	# if BG_IMAGE_FROM_FILE
1375	if ((bg_flags & BG_IS_FROM_FILE)	517	if (fimage.img)
1376	|| (tr_flags & BG_EFFECTS_FLAGS))	518	render_image (fimage);
1377	{
1378	if (render_image (tr_flags))
1379	bg_flags |= BG_IS_VALID;
1380	}
1381	# endif	519	# endif
1382
1383	if (!(bg_flags & BG_IS_VALID))
1384	{
1385	if (bg_pixmap != None)
1386	{
1387	XFreePixmap (dpy, bg_pixmap);
1388	bg_pixmap = None;
1389	}
1390	}
1391		520
1392	scr_recolour (false);	521	scr_recolour (false);
1393	bg_flags |= BG_NEEDS_REFRESH;	522	bg_flags |= BG_NEEDS_REFRESH;
1394		523
1395	bg_valid_since = ev::now ();	524	bg_valid_since = ev::now ();
1396
1397	return true;
1398	}	525	}
1399		526
1400	void	527	void
1401	rxvt_term::bg_init ()	528	rxvt_term::bg_init ()
1402	{	529	{
1403	#ifdef ENABLE_TRANSPARENCY	530	#if BG_IMAGE_FROM_ROOT
1404	shade = 100;	531	if (option (Opt_transparent))
		532	{
		533	if (rs [Rs_blurradius])
		534	root_effects.set_blur (rs [Rs_blurradius]);
		535
		536	if (ISSET_PIXCOLOR (Color_tint))
		537	root_effects.set_tint (pix_colors_focused [Color_tint]);
		538
		539	if (rs [Rs_shade])
		540	root_effects.set_shade (rs [Rs_shade]);
		541
		542	bg_set_root_pixmap ();
		543	XSelectInput (dpy, display->root, PropertyChangeMask);
		544	rootwin_ev.start (display, display->root);
		545	}
1405	#endif	546	#endif
1406		547
1407	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	548	#if BG_IMAGE_FROM_FILE
1408	#if XRENDER	549	if (rs[Rs_backgroundPixmap])
1409	int major, minor;
1410	if (XRenderQueryVersion (dpy, &major, &minor))
1411	bg_flags |= BG_HAS_RENDER;
1412	XFilters *filters = XRenderQueryFilters (dpy, vt);
1413	if (filters)
1414	{	550	{
1415	for (int i = 0; i < filters->nfilter; i++)	551	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1416	if (!strcmp (filters->filter[i], FilterConvolution))	552	if (!bg_window_position_sensitive ())
1417	bg_flags |= BG_HAS_RENDER_CONV;	553	update_background ();
1418
1419	XFree (filters);
1420	}	554	}
1421	#endif	555	#endif
1422	}	556	}
1423		557
1424	#endif /* HAVE_BG_PIXMAP */
1425
1426	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1427	/* based on code from aterm-0.4.2 */
1428
1429	static inline void
1430	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1431	{
1432	for (int i = 0; i <= mask >> sh; i++)
1433	{
1434	uint32_t tmp;
1435	tmp = i * high;
1436	tmp += (mask >> sh) * low;
1437	lookup[i] = (tmp / 0xffff) << sh;
1438	}
1439	}
1440
1441	void	558	void
1442	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)	559	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1443	{	560	{
1444	int sh_r, sh_g, sh_b;
1445	uint32_t mask_r, mask_g, mask_b;
1446	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1447	unsigned short low;
1448	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1449
1450	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1451
1452	/* for convenience */
1453	mask_r = visual->red_mask;
1454	mask_g = visual->green_mask;
1455	mask_b = visual->blue_mask;
1456
1457	/* boring lookup table pre-initialization */
1458	switch (ximage->depth)
1459	{
1460	case 15:
1461	if ((mask_r != 0x7c00) ||
1462	(mask_g != 0x03e0) ||
1463	(mask_b != 0x001f))
1464	return;
1465	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1466	lookup_r = lookup;
1467	lookup_g = lookup+32;
1468	lookup_b = lookup+32+32;
1469	sh_r = 10;
1470	sh_g = 5;
1471	sh_b = 0;
1472	break;
1473	case 16:
1474	if ((mask_r != 0xf800) ||
1475	(mask_g != 0x07e0) ||
1476	(mask_b != 0x001f))
1477	return;
1478	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1479	lookup_r = lookup;
1480	lookup_g = lookup+32;
1481	lookup_b = lookup+32+64;
1482	sh_r = 11;
1483	sh_g = 5;
1484	sh_b = 0;
1485	break;
1486	case 24:
1487	if ((mask_r != 0xff0000) ||
1488	(mask_g != 0x00ff00) ||
1489	(mask_b != 0x0000ff))
1490	return;
1491	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1492	lookup_r = lookup;
1493	lookup_g = lookup+256;
1494	lookup_b = lookup+256+256;
1495	sh_r = 16;
1496	sh_g = 8;
1497	sh_b = 0;
1498	break;
1499	case 32:
1500	if ((mask_r != 0xff0000) ||
1501	(mask_g != 0x00ff00) ||
1502	(mask_b != 0x0000ff))
1503	return;
1504	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1505	lookup_r = lookup;
1506	lookup_g = lookup+256;
1507	lookup_b = lookup+256+256;
1508	sh_r = 16;
1509	sh_g = 8;
1510	sh_b = 0;
1511	break;
1512	default:
1513	return; /* we do not support this color depth */
1514	}
1515
1516	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	561	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1517		562
1518	if (bg_flags & BG_TINT_SET)	563	if (tint_set)
1519	tint.get (c);	564	tint.get (c);
1520		565
1521	/* prepare limits for color transformation (each channel is handled separately) */
1522	if (shade > 100)	566	if (shade > 100)
1523	{	567	{
1524	c.r = c.r * (200 - shade) / 100;	568	c.r = c.r * (200 - shade) / 100;
1525	c.g = c.g * (200 - shade) / 100;	569	c.g = c.g * (200 - shade) / 100;
1526	c.b = c.b * (200 - shade) / 100;	570	c.b = c.b * (200 - shade) / 100;
1527
1528	low = 0xffff * (shade - 100) / 100;
1529	}	571	}
1530	else	572	else
1531	{	573	{
1532	c.r = c.r * shade / 100;	574	c.r = c.r * shade / 100;
1533	c.g = c.g * shade / 100;	575	c.g = c.g * shade / 100;
1534	c.b = c.b * shade / 100;	576	c.b = c.b * shade / 100;
1535
1536	low = 0;
1537	}
1538
1539	/* fill our lookup tables */
1540	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1541	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1542	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1543
1544	/* apply table to input image (replacing colors by newly calculated ones) */
1545	if (ximage->bits_per_pixel == 32
1546	&& (ximage->depth == 24 || ximage->depth == 32)
1547	&& ximage->byte_order == host_byte_order)
1548	{	577	}
1549	uint32_t *p1, *pf, *p, *pl;
1550	p1 = (uint32_t *) ximage->data;
1551	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1552		578
1553	while (p1 < pf)	579	img->contrast (c.r, c.g, c.b, c.a);
1554	{	580
1555	p = p1;	581	if (shade > 100)
1556	pl = p1 + ximage->width;
1557	for (; p < pl; p++)
1558	{
1559	*p = lookup_r[(*p & 0xff0000) >> 16] |
1560	lookup_g[(*p & 0x00ff00) >> 8] |
1561	lookup_b[(*p & 0x0000ff)] |
1562	(*p & 0xff000000);
1563	}
1564	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1565	}
1566	}	582	{
1567	else	583	c.a = 0xffff;
		584	c.r =
		585	c.g =
		586	c.b = 0xffff * (shade - 100) / 100;
		587	img->brightness (c.r, c.g, c.b, c.a);
1568	{	588	}
1569	for (int y = 0; y < ximage->height; y++)
1570	for (int x = 0; x < ximage->width; x++)
1571	{
1572	unsigned long pixel = XGetPixel (ximage, x, y);
1573	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1574	lookup_g[(pixel & mask_g) >> sh_g] |
1575	lookup_b[(pixel & mask_b) >> sh_b];
1576	XPutPixel (ximage, x, y, pixel);
1577	}
1578	}
1579
1580	free (lookup);
1581	}	589	}
1582	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	590
		591	#endif /* HAVE_BG_PIXMAP */

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