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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.199 by sf-exg, Tue Jan 17 19:51:30 2012 UTC vs.
Revision 1.256 by sf-exg, Mon Dec 31 12:05:46 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	}
80
81	bool
82	rxvt_term::bg_set_position (int x, int y)
83	{
84
85	if (target_x != x
86	|| target_y != y)
87	{
88	target_x = x;
89	target_y = y;
90	return true;
91	}
92	return false;
93	}	41	}
94		42
95	bool	43	bool
96	rxvt_term::bg_window_size_sensitive ()	44	rxvt_term::bg_window_size_sensitive ()
97	{	45	{
98	# ifdef ENABLE_TRANSPARENCY	46	# if BG_IMAGE_FROM_ROOT
99	if (bg_flags & BG_IS_TRANSPARENT)	47	if (root_img)
100	return true;	48	return true;
101	# endif	49	# endif
102		50
103	# ifdef BG_IMAGE_FROM_FILE	51	# if BG_IMAGE_FROM_FILE
104	if (bg_flags & BG_IS_FROM_FILE)	52	if (fimage.img)
105	{	53	{
106	if (bg_flags & BG_IS_SIZE_SENSITIVE)	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
107	return true;	57	return true;
108	}	58	}
109	# endif	59	# endif
110		60
111	return false;	61	return false;
112	}	62	}
113		63
114	bool	64	bool
115	rxvt_term::bg_window_position_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
116	{	66	{
117	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
118	if (bg_flags & BG_IS_TRANSPARENT)	68	if (root_img)
119	return true;	69	return true;
120	# endif	70	# endif
121		71
122	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
123	if (bg_flags & BG_IS_FROM_FILE)	73	if (fimage.img)
124	{	74	{
125	if (bg_flags & BG_ROOT_ALIGN)	75	if (fimage.flags & IM_ROOT_ALIGN)
126	return true;	76	return true;
127	}	77	}
128	# endif	78	# endif
129		79
130	return false;	80	return false;
131	}	81	}
132		82
133	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
134	static inline int	84	static inline int
135	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
136	{	86	{
137	int diff = window_size - image_size;
138	int smaller = min (image_size, window_size);
139
140	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
141	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
142	else if (align > 100 && align <= 200)	89	else if (align > 100)
143	return (align - 100) * smaller / 100 + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
144	else if (align >= -100 && align < 0)	91	else
145	return (align + 100) * smaller / 100 - image_size;	92	return lerp (-image_size, 0, align + 100);
146	return 0;
147	}	93	}
148		94
149	static inline int	95	static void
150	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)
151	{	97	{
152	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
153	dst_pos = pos;
154	dst_size = size;
155	if (pos < 0)
156	{
157	src_pos = -pos;
158	dst_pos = 0;
159	dst_size += pos;
160	}	99	{
161		100	flags = IM_TILE;
162	min_it (dst_size, target_size - dst_pos);	101	w = h = noScale;
163	return src_pos;	102	x = y = 0;
		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	}
164	}	128	}
165		129
166	bool	130	bool
167	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
168	{	132	{
169	bool changed = false;	133	bool changed = false;
170	int geom_flags = 0;	134	int geom_flags = 0;
171	int x = h_align;	135	int x = h_align;
172	int y = v_align;	136	int y = v_align;
173	unsigned int w = h_scale;	137	unsigned int w = h_scale;
174	unsigned int h = v_scale;	138	unsigned int h = v_scale;
175	unsigned long new_flags = 0;	139	uint8_t new_flags = 0;
176		140
177	if (geom == NULL)	141	if (geom == NULL)
178	return false;	142	return false;
179		143
180	if (geom[0])	144	if (geom[0])
181	{	145	{
182	char **arr = rxvt_strsplit (':', geom);	146	char **arr = rxvt_strsplit (':', geom);
183		147
184	for (int i = 0; arr[i]; i++)	148	for (int i = 0; arr[i]; i++)
185	{	149	{
186	if (!strcasecmp (arr[i], "style=tiled"))	150	if (!strncasecmp (arr[i], "style=", 6))
187	{	151	{
188	new_flags = BG_TILE;	152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
189	w = h = noScale;
190	x = y = 0;
191	geom_flags = WidthValue|HeightValue|XValue|YValue;	153	geom_flags = WidthValue|HeightValue|XValue|YValue;
192	}	154	}
193	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
194	{
195	new_flags = BG_KEEP_ASPECT;
196	w = h = windowScale;
197	x = y = centerAlign;
198	geom_flags = WidthValue|HeightValue|XValue|YValue;
199	}
200	else if (!strcasecmp (arr[i], "style=stretched"))
201	{
202	new_flags = 0;
203	w = h = windowScale;
204	geom_flags = WidthValue|HeightValue;
205	}
206	else if (!strcasecmp (arr[i], "style=centered"))
207	{
208	new_flags = 0;
209	w = h = noScale;
210	x = y = centerAlign;
211	geom_flags = WidthValue|HeightValue|XValue|YValue;
212	}
213	else if (!strcasecmp (arr[i], "style=root-tiled"))
214	{
215	new_flags = BG_TILE|BG_ROOT_ALIGN;
216	w = h = noScale;
217	geom_flags = WidthValue|HeightValue;
218	}
219	else if (!strcasecmp (arr[i], "op=tile"))	155	else if (!strcasecmp (arr[i], "op=tile"))
220	new_flags |= BG_TILE;	156	new_flags |= IM_TILE;
221	else if (!strcasecmp (arr[i], "op=keep-aspect"))	157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
222	new_flags |= BG_KEEP_ASPECT;	158	new_flags |= IM_KEEP_ASPECT;
223	else if (!strcasecmp (arr[i], "op=root-align"))	159	else if (!strcasecmp (arr[i], "op=root-align"))
224	new_flags |= BG_ROOT_ALIGN;	160	new_flags |= IM_ROOT_ALIGN;
225		161
226	// deprecated	162	// deprecated
227	else if (!strcasecmp (arr[i], "tile"))	163	else if (!strcasecmp (arr[i], "tile"))
228	{	164	{
229	new_flags |= BG_TILE;	165	new_flags |= IM_TILE;
230	w = h = noScale;	166	w = h = noScale;
231	geom_flags |= WidthValue|HeightValue;	167	geom_flags |= WidthValue|HeightValue;
232	}	168	}
233	else if (!strcasecmp (arr[i], "propscale"))	169	else if (!strcasecmp (arr[i], "propscale"))
234	{	170	{
235	new_flags |= BG_KEEP_ASPECT;	171	new_flags |= IM_KEEP_ASPECT;
236	w = h = windowScale;	172	w = h = windowScale;
237	geom_flags |= WidthValue|HeightValue;	173	geom_flags |= WidthValue|HeightValue;
238	}	174	}
239	else if (!strcasecmp (arr[i], "hscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
240	{	176	{
241	new_flags |= BG_TILE;	177	new_flags |= IM_TILE;
242	w = windowScale;	178	w = windowScale;
243	h = noScale;	179	h = noScale;
244	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
245	}	181	}
246	else if (!strcasecmp (arr[i], "vscale"))	182	else if (!strcasecmp (arr[i], "vscale"))
247	{	183	{
248	new_flags |= BG_TILE;	184	new_flags |= IM_TILE;
249	h = windowScale;	185	h = windowScale;
250	w = noScale;	186	w = noScale;
251	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
252	}	188	}
253	else if (!strcasecmp (arr[i], "scale"))	189	else if (!strcasecmp (arr[i], "scale"))
…		…
261	x = y = centerAlign;	197	x = y = centerAlign;
262	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
263	}	199	}
264	else if (!strcasecmp (arr[i], "root"))	200	else if (!strcasecmp (arr[i], "root"))
265	{	201	{
266	new_flags |= BG_TILE|BG_ROOT_ALIGN;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
267	w = h = noScale;	203	w = h = noScale;
268	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
269	}	205	}
270		206
271	else	207	else
…		…
273	} /* done parsing ops */	209	} /* done parsing ops */
274		210
275	rxvt_free_strsplit (arr);	211	rxvt_free_strsplit (arr);
276	}	212	}
277		213
278	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;	214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
279		215
280	if (!update)	216	if (!update)
281	{	217	{
282	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
283	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
290	h = w;	226	h = w;
291	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
292	w = h;	228	w = h;
293	}	229	}
294		230
295	min_it (w, 1000);
296	min_it (h, 1000);
297	clamp_it (x, -100, 200);	231	clamp_it (x, -100, 200);
298	clamp_it (y, -100, 200);	232	clamp_it (y, -100, 200);
299		233
300	if (bg_flags != new_flags	234	if (flags != new_flags
301	|| h_scale != w	235	|| h_scale != w
302	|| v_scale != h	236	|| v_scale != h
303	|| h_align != x	237	|| h_align != x
304	|| v_align != y)	238	|| v_align != y)
305	{	239	{
306	bg_flags = new_flags;	240	flags = new_flags;
307	h_scale = w;	241	h_scale = w;
308	v_scale = h;	242	v_scale = h;
309	h_align = x;	243	h_align = x;
310	v_align = y;	244	v_align = y;
311	changed = true;	245	changed = true;
312	}	246	}
313		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
314	return changed;	253	return changed;
315	}	254	}
316		255
317	void	256	void
318	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	257	rxvt_term::render_image (rxvt_image &image)
319	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
320	int target_width = szHint.width;	261	int parent_width = szHint.width;
321	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);
322		265
		266	int w;
		267	int h;
		268	int x;
		269	int y;
		270
323	w = h_scale * target_width / 100;	271	w = h_scale * parent_width / 100;
324	h = v_scale * target_height / 100;	272	h = v_scale * parent_height / 100;
325		273
326	if (bg_flags & BG_KEEP_ASPECT)	274	if (image.flags & IM_KEEP_ASPECT)
327	{	275	{
328	float scale = (float)w / image_width;	276	float scale = (float)w / image_width;
329	min_it (scale, (float)h / image_height);	277	min_it (scale, (float)h / image_height);
330	w = image_width * scale + 0.5;	278	w = image_width * scale + 0.5;
331	h = image_height * scale + 0.5;	279	h = image_height * scale + 0.5;
332	}	280	}
333		281
334	if (!w) w = image_width;	282	if (!w) w = image_width;
335	if (!h) h = image_height;	283	if (!h) h = image_height;
336		284
337	if (bg_flags & BG_ROOT_ALIGN)	285	if (image.flags & IM_ROOT_ALIGN)
338	{	286	{
339	x = -target_x;	287	x = -parent_x;
340	y = -target_y;	288	y = -parent_y;
341	}	289	}
342	else	290	else
343	{	291	{
344	x = make_align_position (h_align, target_width, w);	292	x = make_align_position (image.h_align, parent_width, w);
345	y = make_align_position (v_align, target_height, h);	293	y = make_align_position (image.v_align, parent_height, h);
346	}
347
348	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
349	if (!(bg_flags & BG_TILE)
350	|| h_scale || v_scale
351	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
352	|| w > target_width || h > target_height)
353	bg_flags |= BG_IS_SIZE_SENSITIVE;
354	}
355
356	# ifdef HAVE_AFTERIMAGE
357	bool
358	rxvt_term::render_image (unsigned long tr_flags)
359	{
360	init_asv ();
361
362	ASImage *background = NULL;
363	ARGB32 background_tint = TINT_LEAVE_SAME;
364
365	# ifdef ENABLE_TRANSPARENCY
366	if (tr_flags)
367	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
368
369	if (tr_flags & BG_NEEDS_TINT)
370	{	294	}
371	ShadingInfo as_shade;
372	as_shade.shading = shade;
373		295
374	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
375	if (bg_flags & BG_TINT_SET)
376	tint.get (c);
377	as_shade.tintColor.red = c.r;
378	as_shade.tintColor.green = c.g;
379	as_shade.tintColor.blue = c.b;
380
381	background_tint = shading2tint32 (&as_shade);
382	}
383
384	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
385	{
386	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
387	ASA_XImage,
388	100, ASIMAGE_QUALITY_DEFAULT);
389	if (tmp)
390	{
391	destroy_asimage (&background);
392	background = tmp;
393	}
394	}
395	# endif
396
397	ASImage *result = 0;
398
399	int target_width = szHint.width;
400	int target_height = szHint.height;
401	int new_pmap_width = target_width;
402	int new_pmap_height = target_height;
403
404	int x = 0;
405	int y = 0;
406	int w = 0;
407	int h = 0;
408
409	if (original_asim)
410	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
411
412	if (!original_asim
413	|| (!(bg_flags & BG_ROOT_ALIGN)
414	&& (x >= target_width
415	|| y >= target_height
416	|| x + w <= 0
417	|| y + h <= 0)))
418	{
419	if (background)
420	{
421	new_pmap_width = background->width;
422	new_pmap_height = background->height;
423	result = background;
424
425	if (background_tint != TINT_LEAVE_SAME)
426	{
427	ASImage *tmp = tile_asimage (asv, background, 0, 0,
428	target_width, target_height, background_tint,
429	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
430	if (tmp)
431	result = tmp;
432	}
433	}
434	else
435	new_pmap_width = new_pmap_height = 0;
436	}
437	else
438	{
439	result = original_asim;
440
441	if (w != original_asim->width
442	|| h != original_asim->height)
443	{
444	result = scale_asimage (asv, original_asim,
445	w, h,
446	ASA_XImage,
447	100, ASIMAGE_QUALITY_DEFAULT);
448	}
449
450	if (background == NULL)
451	{
452	if (bg_flags & BG_TILE)
453	{
454	/* if tiling - pixmap has to be sized exactly as the image,
455	but there is no need to make it bigger than the window! */
456	new_pmap_width = min (result->width, target_width);
457	new_pmap_height = min (result->height, target_height);
458
459	/* we also need to tile our image in both directions */
460	ASImage *tmp = tile_asimage (asv, result,
461	(int)result->width - x,
462	(int)result->height - y,
463	new_pmap_width,
464	new_pmap_height,
465	TINT_LEAVE_SAME, ASA_XImage,
466	100, ASIMAGE_QUALITY_DEFAULT);
467	if (tmp)
468	{
469	if (result != original_asim)
470	destroy_asimage (&result);
471
472	result = tmp;
473	}
474	}
475	}
476	else
477	{
478	/* if blending background and image - pixmap has to be sized same as target window */
479	ASImageLayer *layers = create_image_layers (2);
480
481	layers[0].im = background;
482	layers[0].clip_width = target_width;
483	layers[0].clip_height = target_height;
484	layers[0].tint = background_tint;
485	layers[1].im = result;
486
487	if (bg_flags & BG_TILE)
488	{
489	/* tile horizontally */
490	while (x > 0) x -= (int)result->width;
491	layers[1].dst_x = x;
492	layers[1].clip_width = result->width+target_width;
493	}
494	else
495	{
496	/* clip horizontally */
497	layers[1].dst_x = x;
498	layers[1].clip_width = result->width;
499	}
500
501	if (bg_flags & BG_TILE)
502	{
503	while (y > 0) y -= (int)result->height;
504	layers[1].dst_y = y;
505	layers[1].clip_height = result->height + target_height;
506	}
507	else
508	{
509	layers[1].dst_y = y;
510	layers[1].clip_height = result->height;
511	}
512
513	if (rs[Rs_blendtype])
514	{
515	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
516	if (layers[1].merge_scanlines == NULL)
517	layers[1].merge_scanlines = alphablend_scanlines;
518	}
519
520	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
521	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
522
523	if (tmp)
524	{
525	if (result != original_asim)
526	destroy_asimage (&result);
527
528	result = tmp;
529	}
530
531	free (layers);
532	}
533	}
534
535	bool ret = false;
536
537	if (result)
538	{
539	XGCValues gcv;
540	GC gc;
541
542	/* create Pixmap */
543	if (bg_pixmap == None
544	|| bg_pmap_width != new_pmap_width
545	|| bg_pmap_height != new_pmap_height)
546	{
547	if (bg_pixmap)
548	XFreePixmap (dpy, bg_pixmap);
549	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
550	bg_pmap_width = new_pmap_width;
551	bg_pmap_height = new_pmap_height;
552	}
553	/* fill with background color (if result's not completely overlapping it) */
554	gcv.foreground = pix_colors[Color_bg];
555	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
556
557	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
558	int dst_width = result->width, dst_height = result->height;
559	if (background == NULL)
560	{
561	if (!(bg_flags & BG_TILE))
562	{
563	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
564	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
565	}
566
567	if (dst_x > 0 || dst_y > 0
568	|| dst_x + dst_width < new_pmap_width
569	|| dst_y + dst_height < new_pmap_height)
570	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
571	}
572
573	/* put result on pixmap */
574	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
575	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
576
577	if (result != background && result != original_asim)
578	destroy_asimage (&result);
579
580	XFreeGC (dpy, gc);
581
582	ret = true;
583	}
584
585	if (background)
586	destroy_asimage (&background);
587
588	return ret;
589	}
590	# endif /* HAVE_AFTERIMAGE */
591
592	# ifdef HAVE_PIXBUF
593	bool
594	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
595	int src_x, int src_y, int dst_x, int dst_y,
596	unsigned int width, unsigned int height)
597	{
598	XImage *ximage;
599	char *data, *line;
600	int bytes_per_pixel;
601	int width_r, width_g, width_b;
602	int sh_r, sh_g, sh_b;
603	int rowstride;
604	int channels;
605	unsigned char *row;
606
607	if (visual->c_class != TrueColor)
608	return false;
609
610	if (depth == 24 || depth == 32)
611	bytes_per_pixel = 4;
612	else if (depth == 15 || depth == 16)
613	bytes_per_pixel = 2;
614	else
615	return false;
616
617	width_r = ecb_popcount32 (visual->red_mask);
618	width_g = ecb_popcount32 (visual->green_mask);
619	width_b = ecb_popcount32 (visual->blue_mask);
620
621	if (width_r > 8 || width_g > 8 || width_b > 8)
622	return false;
623
624	sh_r = ecb_ctz32 (visual->red_mask);
625	sh_g = ecb_ctz32 (visual->green_mask);
626	sh_b = ecb_ctz32 (visual->blue_mask);
627
628	if (width > INT_MAX / height / bytes_per_pixel)
629	return false;
630
631	data = (char *)malloc (width * height * bytes_per_pixel);
632	if (!data)
633	return false;
634
635	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
636	width, height, bytes_per_pixel * 8, 0);
637	if (!ximage)
638	{
639	free (data);
640	return false;
641	}
642
643	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
644
645	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
646	channels = gdk_pixbuf_get_n_channels (pixbuf);
647	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
648	line = data;
649
650	for (int y = 0; y < height; y++)
651	{
652	for (int x = 0; x < width; x++)
653	{
654	unsigned char *pixel = row + x * channels;
655	uint32_t value;
656
657	value = ((pixel[0] >> (8 - width_r)) << sh_r)
658	| ((pixel[1] >> (8 - width_g)) << sh_g)
659	| ((pixel[2] >> (8 - width_b)) << sh_b);
660
661	if (bytes_per_pixel == 4)
662	((uint32_t *)line)[x] = value;
663	else
664	((uint16_t *)line)[x] = value;
665	}
666
667	row += rowstride;
668	line += ximage->bytes_per_line;
669	}
670
671	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
672	XDestroyImage (ximage);
673	return true;
674	}
675
676	bool
677	rxvt_term::render_image (unsigned long tr_flags)
678	{
679	if (!pixbuf)
680	return false;
681
682	if (tr_flags
683	&& !(bg_flags & BG_HAS_RENDER))
684	return false;
685
686	GdkPixbuf *result;
687
688	int image_width = gdk_pixbuf_get_width (pixbuf);
689	int image_height = gdk_pixbuf_get_height (pixbuf);
690
691	int target_width = szHint.width;
692	int target_height = szHint.height;
693	int new_pmap_width = target_width;
694	int new_pmap_height = target_height;
695
696	int x = 0;
697	int y = 0;
698	int w = 0;
699	int h = 0;
700
701	get_image_geometry (image_width, image_height, w, h, x, y);
702
703	if (!(bg_flags & BG_ROOT_ALIGN)	296	if (!(image.flags & IM_ROOT_ALIGN)
704	&& (x >= target_width	297	&& (x >= parent_width
705	|| y >= target_height	298	|| y >= parent_height
706	|| x + w <= 0	299	|| x + w <= 0
707	|| y + h <= 0))	300	|| y + h <= 0))
708	return false;	301	return;
709		302
710	result = pixbuf;	303	rxvt_img *img = image.img->scale (w, h);
711		304
712	if (w != image_width	305	if (image.flags & IM_TILE)
713	|| h != image_height)	306	img->repeat_mode (RepeatNormal);
714	{
715	result = gdk_pixbuf_scale_simple (pixbuf,
716	w, h,
717	GDK_INTERP_BILINEAR);
718	}
719
720	if (!result)
721	return false;
722
723	bool ret = false;
724
725	XGCValues gcv;
726	GC gc;
727	Pixmap root_pmap;
728
729	image_width = gdk_pixbuf_get_width (result);
730	image_height = gdk_pixbuf_get_height (result);
731
732	if (tr_flags)
733	{
734	root_pmap = bg_pixmap;
735	bg_pixmap = None;
736	}
737	else	307	else
738	{	308	img->repeat_mode (RepeatNone);
739	if (bg_flags & BG_TILE)	309	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
740	{
741	new_pmap_width = min (image_width, target_width);
742	new_pmap_height = min (image_height, target_height);
743	}
744	}
745		310
746	if (bg_pixmap == None	311	if (bg_img)
747	|| bg_pmap_width != new_pmap_width	312	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
748	|| bg_pmap_height != new_pmap_height)
749	{
750	if (bg_pixmap)
751	XFreePixmap (dpy, bg_pixmap);
752	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
753	bg_pmap_width = new_pmap_width;
754	bg_pmap_height = new_pmap_height;
755	}
756		313
757	gcv.foreground = pix_colors[Color_bg];
758	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
759
760	if (gc)
761	{
762	if (bg_flags & BG_TILE)
763	{
764	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
765	pixbuf_to_pixmap (result, tile, gc,
766	0, 0,
767	0, 0,
768	image_width, image_height);
769
770	gcv.tile = tile;
771	gcv.fill_style = FillTiled;
772	gcv.ts_x_origin = x;
773	gcv.ts_y_origin = y;
774	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
775
776	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
777	XFreePixmap (dpy, tile);
778	}
779	else
780	{
781	int src_x, src_y, dst_x, dst_y;
782	int dst_width, dst_height;
783
784	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
785	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
786
787	if (dst_x > 0 || dst_y > 0
788	|| dst_x + dst_width < new_pmap_width
789	|| dst_y + dst_height < new_pmap_height)
790	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
791
792	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
793	pixbuf_to_pixmap (result, bg_pixmap, gc,
794	src_x, src_y,
795	dst_x, dst_y,
796	dst_width, dst_height);
797	}
798
799	#if XRENDER
800	if (tr_flags)
801	{
802	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	314	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		315	img->convert_format (format, pix_colors [Color_bg])->replace (img);
803		316
804	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);	317	delete bg_img;
805		318	bg_img = img;
806	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
807
808	Picture mask = create_xrender_mask (dpy, vt, False, False);
809
810	XRenderColor mask_c;
811
812	mask_c.alpha = 0x8000;
813	mask_c.red =
814	mask_c.green =
815	mask_c.blue = 0;
816	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
817
818	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
819
820	XRenderFreePicture (dpy, src);
821	XRenderFreePicture (dpy, dst);
822	XRenderFreePicture (dpy, mask);
823	}
824	#endif
825
826	XFreeGC (dpy, gc);
827
828	ret = true;
829	}
830
831	if (result != pixbuf)
832	g_object_unref (result);
833
834	if (tr_flags)
835	XFreePixmap (dpy, root_pmap);
836
837	return ret;
838	}	319	}
839	# endif /* HAVE_PIXBUF */
840		320
841	bool	321	rxvt_image::rxvt_image ()
842	rxvt_term::bg_set_file (const char *file)	322	{
		323	alpha = 0xffff;
		324	flags = 0;
		325	h_scale =
		326	v_scale = defaultScale;
		327	h_align =
		328	v_align = defaultAlign;
		329
		330	img = 0;
		331	}
		332
		333	void
		334	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
843	{	335	{
844	if (!file || !*file)	336	if (!file || !*file)
845	return false;	337	return;
846		338
847	bool ret = false;
848	const char *p = strchr (file, ';');	339	const char *p = strchr (file, ';');
849		340
850	if (p)	341	if (p)
851	{	342	{
852	size_t len = p - file;	343	size_t len = p - file;
…		…
854	memcpy (f, file, len);	345	memcpy (f, file, len);
855	f[len] = '\0';	346	f[len] = '\0';
856	file = f;	347	file = f;
857	}	348	}
858		349
859	# ifdef HAVE_AFTERIMAGE	350	set_file (s, file);
860	if (!asimman)	351	alpha = 0x8000;
861	asimman = create_generic_imageman (rs[Rs_path]);	352	set_geometry (p ? p + 1 : "");
862	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	353	}
863	if (image)
864	{
865	if (original_asim)
866	safe_asimage_destroy (original_asim);
867	original_asim = image;
868	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
869	ret = true;
870	}
871	# endif
872		354
873	# ifdef HAVE_PIXBUF	355	void
874	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	356	rxvt_image::set_file (rxvt_screen *s, const char *file)
875	if (image)	357	{
876	{	358	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
877	if (pixbuf)	359	delete img;
878	g_object_unref (pixbuf);	360	img = img2;
879	pixbuf = image;
880	bg_flags |= BG_IS_FROM_FILE;
881	ret = true;
882	}
883	# endif
884
885	if (ret)
886	{
887	if (p)
888	bg_set_geometry (p + 1);
889	else
890	bg_set_default_geometry ();
891	}
892
893	return ret;
894	}	361	}
895		362
896	# endif /* BG_IMAGE_FROM_FILE */	363	# endif /* BG_IMAGE_FROM_FILE */
897		364
898	# ifdef ENABLE_TRANSPARENCY
899	bool	365	bool
900	rxvt_term::bg_set_transparent ()	366	image_effects::set_blur (const char *geom)
901	{
902	if (!(bg_flags & BG_IS_TRANSPARENT))
903	{
904	bg_flags |= BG_IS_TRANSPARENT;
905	return true;
906	}
907
908	return false;
909	}
910
911	bool
912	rxvt_term::bg_set_blur (const char *geom)
913	{	367	{
914	bool changed = false;	368	bool changed = false;
915	unsigned int hr, vr;	369	unsigned int hr, vr;
916	int junk;	370	int junk;
917	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	371	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
934	{	388	{
935	changed = true;	389	changed = true;
936	v_blurRadius = vr;	390	v_blurRadius = vr;
937	}	391	}
938		392
939	if (h_blurRadius == 0 || v_blurRadius == 0)
940	bg_flags &= ~BG_NEEDS_BLUR;
941	else
942	bg_flags |= BG_NEEDS_BLUR;
943
944	return changed;	393	return changed;
945	}	394	}
946		395
947	void
948	rxvt_term::set_tint_shade_flags ()
949	{
950	rgba c;
951	bool has_shade = shade != 100;
952
953	bg_flags &= ~BG_TINT_FLAGS;
954
955	if (bg_flags & BG_TINT_SET)
956	{
957	tint.get (c);
958	if (!has_shade
959	&& (c.r <= 0x00ff || c.r >= 0xff00)
960	&& (c.g <= 0x00ff || c.g >= 0xff00)
961	&& (c.b <= 0x00ff || c.b >= 0xff00))
962	bg_flags |= BG_TINT_BITAND;
963	}
964
965	if (has_shade || (bg_flags & BG_TINT_SET))
966	bg_flags |= BG_NEEDS_TINT;
967	}
968
969	bool	396	bool
970	rxvt_term::bg_set_tint (rxvt_color &new_tint)	397	image_effects::set_tint (const rxvt_color &new_tint)
971	{	398	{
972	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	399	if (!tint_set || tint != new_tint)
973	{	400	{
974	tint = new_tint;	401	tint = new_tint;
975	bg_flags |= BG_TINT_SET;	402	tint_set = true;
976	set_tint_shade_flags ();	403
977	return true;	404	return true;
978	}	405	}
979		406
980	return false;	407	return false;
981	}	408	}
982		409
983	bool	410	bool
984	rxvt_term::bg_set_shade (const char *shade_str)	411	image_effects::set_shade (const char *shade_str)
985	{	412	{
986	int new_shade = atoi (shade_str);	413	int new_shade = atoi (shade_str);
987		414
988	clamp_it (new_shade, -100, 200);	415	clamp_it (new_shade, -100, 200);
989	if (new_shade < 0)	416	if (new_shade < 0)
990	new_shade = 200 - (100 + new_shade);	417	new_shade = 200 - (100 + new_shade);
991		418
992	if (new_shade != shade)	419	if (new_shade != shade)
993	{	420	{
994	shade = new_shade;	421	shade = new_shade;
995	set_tint_shade_flags ();
996	return true;	422	return true;
997	}	423	}
998		424
999	return false;	425	return false;
1000	}	426	}
1001		427
1002	#if XRENDER	428	# if BG_IMAGE_FROM_ROOT
1003	static void
1004	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1005	{
1006	double sigma = radius / 2.0;
1007	double scale = sqrt (2.0 * M_PI) * sigma;
1008	double sum = 0.0;
1009
1010	for (int i = 0; i < width; i++)
1011	{
1012	double x = i - width / 2;
1013	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1014	sum += kernel[i];
1015	}
1016
1017	params[0] = XDoubleToFixed (width);
1018	params[1] = XDoubleToFixed (1);
1019
1020	for (int i = 0; i < width; i++)
1021	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1022	}
1023	#endif
1024
1025	bool
1026	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
1027	{
1028	bool ret = false;
1029	#if XRENDER
1030	if (!(bg_flags & BG_HAS_RENDER_CONV))
1031	return false;
1032
1033	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1034	double *kernel = (double *)malloc (size * sizeof (double));
1035	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1036
1037	XRenderPictureAttributes pa;
1038	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1039
1040	pa.repeat = RepeatPad;
1041	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
1042	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
1043	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
1044	XFreePixmap (dpy, tmp);
1045
1046	if (kernel && params)
1047	{
1048	size = h_blurRadius * 2 + 1;
1049	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1050
1051	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1052	XRenderComposite (dpy,
1053	PictOpSrc,
1054	src,
1055	None,
1056	dst,
1057	0, 0,
1058	0, 0,
1059	0, 0,
1060	width, height);
1061
1062	::swap (src, dst);
1063
1064	size = v_blurRadius * 2 + 1;
1065	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1066	::swap (params[0], params[1]);
1067
1068	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1069	XRenderComposite (dpy,
1070	PictOpSrc,
1071	src,
1072	None,
1073	dst,
1074	0, 0,
1075	0, 0,
1076	0, 0,
1077	width, height);
1078
1079	ret = true;
1080	}
1081
1082	free (kernel);
1083	free (params);
1084	XRenderFreePicture (dpy, src);
1085	XRenderFreePicture (dpy, dst);
1086	#endif
1087	return ret;
1088	}
1089
1090	bool
1091	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1092	{
1093	bool ret = false;
1094
1095	if (bg_flags & BG_TINT_BITAND)
1096	{
1097	XGCValues gcv;
1098	GC gc;
1099
1100	/* In this case we can tint image server-side getting significant
1101	* performance improvements, as we eliminate XImage transfer
1102	*/
1103	gcv.foreground = Pixel (tint);
1104	gcv.function = GXand;
1105	gcv.fill_style = FillSolid;
1106	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1107	if (gc)
1108	{
1109	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1110	ret = true;
1111	XFreeGC (dpy, gc);
1112	}
1113	}
1114	# if XRENDER
1115	else if (bg_flags & BG_HAS_RENDER)
1116	{
1117	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1118
1119	if (bg_flags & BG_TINT_SET)
1120	tint.get (c);
1121
1122	if (shade <= 100)
1123	{
1124	c.r = c.r * shade / 100;
1125	c.g = c.g * shade / 100;
1126	c.b = c.b * shade / 100;
1127	}
1128	else
1129	{
1130	c.r = c.r * (200 - shade) / 100;
1131	c.g = c.g * (200 - shade) / 100;
1132	c.b = c.b * (200 - shade) / 100;
1133	}
1134
1135	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1136
1137	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1138
1139	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1140
1141	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1142
1143	XRenderColor mask_c;
1144
1145	mask_c.alpha = 0xffff;
1146	mask_c.red =
1147	mask_c.green =
1148	mask_c.blue = 0;
1149	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1150
1151	mask_c.alpha = 0;
1152	mask_c.red = 0xffff - c.r;
1153	mask_c.green = 0xffff - c.g;
1154	mask_c.blue = 0xffff - c.b;
1155	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1156
1157	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1158
1159	if (shade > 100)
1160	{
1161	mask_c.alpha = 0;
1162	mask_c.red =
1163	mask_c.green =
1164	mask_c.blue = 0xffff * (shade - 100) / 100;
1165	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1166
1167	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1168	}
1169
1170	ret = true;
1171
1172	XRenderFreePicture (dpy, mask_pic);
1173	XRenderFreePicture (dpy, overlay_pic);
1174	XRenderFreePicture (dpy, back_pic);
1175	}
1176	# endif
1177
1178	return ret;
1179	}
1180
1181	/*	429	/*
1182	* Builds a pixmap of the same size as the terminal window that contains	430	* Builds a pixmap of the same size as the terminal window that contains
1183	* the tiled portion of the root pixmap that is supposed to be covered by	431	* the tiled portion of the root pixmap that is supposed to be covered by
1184	* our window.	432	* our window.
1185	*/	433	*/
1186	unsigned long	434	void
1187	rxvt_term::make_transparency_pixmap ()	435	rxvt_term::render_root_image ()
1188	{	436	{
1189	unsigned long result = 0;
1190
1191	/* root dimensions may change from call to call - but Display structure should	437	/* root dimensions may change from call to call - but Display structure should
1192	* be always up-to-date, so let's use it :	438	* be always up-to-date, so let's use it :
1193	*/	439	*/
1194	int screen = display->screen;	440	int screen = display->screen;
1195	int root_depth = DefaultDepth (dpy, screen);
1196	int root_width = DisplayWidth (dpy, screen);	441	int root_width = DisplayWidth (dpy, screen);
1197	int root_height = DisplayHeight (dpy, screen);	442	int root_height = DisplayHeight (dpy, screen);
1198	unsigned int root_pmap_width, root_pmap_height;
1199	int window_width = szHint.width;	443	int parent_width = szHint.width;
1200	int window_height = szHint.height;	444	int parent_height = szHint.height;
1201	int sx, sy;	445	int sx, sy;
1202	XGCValues gcv;
1203	GC gc;
1204		446
1205	sx = target_x;	447	sx = parent_x;
1206	sy = target_y;	448	sy = parent_y;
1207		449
1208	/* check if we are outside of the visible part of the virtual screen : */	450	/* check if we are outside of the visible part of the virtual screen : */
1209	if (sx + window_width <= 0 || sy + window_height <= 0	451	if (sx + parent_width <= 0 || sy + parent_height <= 0
1210	|| sx >= root_width || sy >= root_height)	452	|| sx >= root_width || sy >= root_height)
1211	return 0;	453	return;
1212		454
1213	// validate root pixmap and get its size	455	while (sx < 0) sx += root_img->w;
1214	if (root_pixmap != None)	456	while (sy < 0) sy += root_img->h;
1215	{
1216	Window wdummy;
1217	int idummy;
1218	unsigned int udummy;
1219		457
1220	allowedxerror = -1;	458	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1221		459
1222	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	460	if (root_effects.need_blur ())
1223	root_pixmap = None;	461	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1224		462
1225	allowedxerror = 0;	463	if (root_effects.need_tint ())
1226	}	464	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1227		465
1228	Pixmap recoded_root_pmap = root_pixmap;
1229
1230	if (root_pixmap != None && root_depth != depth)
1231	{
1232	#if XRENDER
1233	if (bg_flags & BG_HAS_RENDER)
1234	{
1235	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1236
1237	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1238	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1239
1240	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	466	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1241	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);	467	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1242		468
1243	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	469	delete bg_img;
1244		470	bg_img = img;
1245	XRenderFreePicture (dpy, src);
1246	XRenderFreePicture (dpy, dst);
1247	}
1248	else
1249	#endif
1250	recoded_root_pmap = None;
1251	}
1252
1253	if (recoded_root_pmap == None)
1254	return 0;
1255
1256	if (bg_pixmap == None
1257	|| bg_pmap_width != window_width
1258	|| bg_pmap_height != window_height)
1259	{
1260	if (bg_pixmap)
1261	XFreePixmap (dpy, bg_pixmap);
1262	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1263	bg_pmap_width = window_width;
1264	bg_pmap_height = window_height;
1265	}
1266
1267	/* straightforward pixmap copy */
1268	while (sx < 0) sx += root_pmap_width;
1269	while (sy < 0) sy += root_pmap_height;
1270
1271	gcv.tile = recoded_root_pmap;
1272	gcv.fill_style = FillTiled;
1273	gcv.ts_x_origin = -sx;
1274	gcv.ts_y_origin = -sy;
1275	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1276
1277	if (gc)
1278	{
1279	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1280	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1281
1282	if (!(bg_flags & BG_CLIENT_RENDER))
1283	{
1284	if (bg_flags & BG_NEEDS_BLUR)
1285	{
1286	if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
1287	result &= ~BG_NEEDS_BLUR;
1288	}
1289	if (bg_flags & BG_NEEDS_TINT)
1290	{
1291	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1292	result &= ~BG_NEEDS_TINT;
1293	}
1294	# ifndef HAVE_AFTERIMAGE
1295	if (result & BG_NEEDS_TINT)
1296	{
1297	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1298	if (ximage)
1299	{
1300	/* our own client-side tinting */
1301	tint_ximage (DefaultVisual (dpy, display->screen), ximage);
1302
1303	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1304	XDestroyImage (ximage);
1305	}
1306	}
1307	# endif
1308	} /* server side rendering completed */
1309
1310	XFreeGC (dpy, gc);
1311	}
1312
1313	if (recoded_root_pmap != root_pixmap)
1314	XFreePixmap (dpy, recoded_root_pmap);
1315
1316	return result;
1317	}	471	}
		472	# endif /* BG_IMAGE_FROM_ROOT */
1318		473
1319	void	474	void
1320	rxvt_term::bg_set_root_pixmap ()
1321	{
1322	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);
1323	if (new_root_pixmap == None)
1324	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1325
1326	root_pixmap = new_root_pixmap;
1327	}
1328	# endif /* ENABLE_TRANSPARENCY */
1329
1330	bool
1331	rxvt_term::bg_render ()	475	rxvt_term::bg_render ()
1332	{	476	{
1333	unsigned long tr_flags = 0;	477	if (bg_flags & BG_INHIBIT_RENDER)
		478	return;
1334		479
1335	bg_invalidate ();	480	delete bg_img;
1336	# ifdef ENABLE_TRANSPARENCY	481	bg_img = 0;
		482	bg_flags = 0;
		483
		484	if (!mapped)
		485	return;
		486
		487	# if BG_IMAGE_FROM_ROOT
		488	if (root_img)
		489	{
		490	render_root_image ();
1337	if (bg_flags & BG_IS_TRANSPARENT)	491	bg_flags |= BG_IS_TRANSPARENT;
1338	{	492	}
1339	/* we need to re-generate transparency pixmap in that case ! */
1340	tr_flags = make_transparency_pixmap ();
1341	if (tr_flags)
1342	bg_flags |= BG_IS_VALID;
1343	}
1344	# endif	493	# endif
1345		494
1346	# ifdef BG_IMAGE_FROM_FILE	495	# if BG_IMAGE_FROM_FILE
1347	if ((bg_flags & BG_IS_FROM_FILE)	496	if (fimage.img)
1348	|| (tr_flags & BG_EFFECTS_FLAGS))	497	render_image (fimage);
1349	{
1350	if (render_image (tr_flags))
1351	bg_flags |= BG_IS_VALID;
1352	}
1353	# endif	498	# endif
1354
1355	if (!(bg_flags & BG_IS_VALID))
1356	{
1357	if (bg_pixmap != None)
1358	{
1359	XFreePixmap (dpy, bg_pixmap);
1360	bg_pixmap = None;
1361	}
1362	}
1363		499
1364	scr_recolour (false);	500	scr_recolour (false);
1365	bg_flags |= BG_NEEDS_REFRESH;	501	bg_flags |= BG_NEEDS_REFRESH;
1366		502
1367	bg_valid_since = ev::now ();	503	bg_valid_since = ev::now ();
1368
1369	return true;
1370	}	504	}
1371		505
1372	void	506	void
1373	rxvt_term::bg_init ()	507	rxvt_term::bg_init ()
1374	{	508	{
1375	#ifdef ENABLE_TRANSPARENCY	509	#if BG_IMAGE_FROM_ROOT
1376	shade = 100;	510	if (option (Opt_transparent))
		511	{
		512	if (rs [Rs_blurradius])
		513	root_effects.set_blur (rs [Rs_blurradius]);
		514
		515	if (ISSET_PIXCOLOR (Color_tint))
		516	root_effects.set_tint (pix_colors_focused [Color_tint]);
		517
		518	if (rs [Rs_shade])
		519	root_effects.set_shade (rs [Rs_shade]);
		520
		521	rxvt_img::new_from_root (this)->replace (root_img);
		522	XSelectInput (dpy, display->root, PropertyChangeMask);
		523	rootwin_ev.start (display, display->root);
		524	}
1377	#endif	525	#endif
1378		526
1379	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	527	#if BG_IMAGE_FROM_FILE
1380	#if XRENDER	528	if (rs[Rs_backgroundPixmap])
1381	int major, minor;
1382	if (XRenderQueryVersion (dpy, &major, &minor))
1383	bg_flags |= BG_HAS_RENDER;
1384	XFilters *filters = XRenderQueryFilters (dpy, vt);
1385	if (filters)
1386	{	529	{
1387	for (int i = 0; i < filters->nfilter; i++)	530	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1388	if (!strcmp (filters->filter[i], FilterConvolution))	531	if (!bg_window_position_sensitive ())
1389	bg_flags |= BG_HAS_RENDER_CONV;	532	update_background ();
1390
1391	XFree (filters);
1392	}	533	}
1393	#endif	534	#endif
1394	}	535	}
1395		536
1396	#endif /* HAVE_BG_PIXMAP */
1397
1398	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1399	/* based on code from aterm-0.4.2 */
1400
1401	static inline void
1402	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1403	{
1404	for (int i = 0; i <= mask >> sh; i++)
1405	{
1406	uint32_t tmp;
1407	tmp = i * high;
1408	tmp += (mask >> sh) * low;
1409	lookup[i] = (tmp / 0xffff) << sh;
1410	}
1411	}
1412
1413	void	537	void
1414	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)	538	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1415	{	539	{
1416	int sh_r, sh_g, sh_b;
1417	uint32_t mask_r, mask_g, mask_b;
1418	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1419	unsigned short low;
1420	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1421
1422	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1423
1424	/* for convenience */
1425	mask_r = visual->red_mask;
1426	mask_g = visual->green_mask;
1427	mask_b = visual->blue_mask;
1428
1429	/* boring lookup table pre-initialization */
1430	switch (ximage->depth)
1431	{
1432	case 15:
1433	if ((mask_r != 0x7c00) ||
1434	(mask_g != 0x03e0) ||
1435	(mask_b != 0x001f))
1436	return;
1437	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1438	lookup_r = lookup;
1439	lookup_g = lookup+32;
1440	lookup_b = lookup+32+32;
1441	sh_r = 10;
1442	sh_g = 5;
1443	sh_b = 0;
1444	break;
1445	case 16:
1446	if ((mask_r != 0xf800) ||
1447	(mask_g != 0x07e0) ||
1448	(mask_b != 0x001f))
1449	return;
1450	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1451	lookup_r = lookup;
1452	lookup_g = lookup+32;
1453	lookup_b = lookup+32+64;
1454	sh_r = 11;
1455	sh_g = 5;
1456	sh_b = 0;
1457	break;
1458	case 24:
1459	if ((mask_r != 0xff0000) ||
1460	(mask_g != 0x00ff00) ||
1461	(mask_b != 0x0000ff))
1462	return;
1463	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1464	lookup_r = lookup;
1465	lookup_g = lookup+256;
1466	lookup_b = lookup+256+256;
1467	sh_r = 16;
1468	sh_g = 8;
1469	sh_b = 0;
1470	break;
1471	case 32:
1472	if ((mask_r != 0xff0000) ||
1473	(mask_g != 0x00ff00) ||
1474	(mask_b != 0x0000ff))
1475	return;
1476	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1477	lookup_r = lookup;
1478	lookup_g = lookup+256;
1479	lookup_b = lookup+256+256;
1480	sh_r = 16;
1481	sh_g = 8;
1482	sh_b = 0;
1483	break;
1484	default:
1485	return; /* we do not support this color depth */
1486	}
1487
1488	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	540	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1489		541
1490	if (bg_flags & BG_TINT_SET)	542	if (tint_set)
1491	tint.get (c);	543	tint.get (c);
1492		544
1493	/* prepare limits for color transformation (each channel is handled separately) */
1494	if (shade > 100)	545	if (shade > 100)
1495	{	546	{
1496	c.r = c.r * (200 - shade) / 100;	547	c.r = c.r * (200 - shade) / 100;
1497	c.g = c.g * (200 - shade) / 100;	548	c.g = c.g * (200 - shade) / 100;
1498	c.b = c.b * (200 - shade) / 100;	549	c.b = c.b * (200 - shade) / 100;
1499
1500	low = 0xffff * (shade - 100) / 100;
1501	}	550	}
1502	else	551	else
1503	{	552	{
1504	c.r = c.r * shade / 100;	553	c.r = c.r * shade / 100;
1505	c.g = c.g * shade / 100;	554	c.g = c.g * shade / 100;
1506	c.b = c.b * shade / 100;	555	c.b = c.b * shade / 100;
1507
1508	low = 0;
1509	}
1510
1511	/* fill our lookup tables */
1512	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1513	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1514	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1515
1516	/* apply table to input image (replacing colors by newly calculated ones) */
1517	if (ximage->bits_per_pixel == 32
1518	&& (ximage->depth == 24 || ximage->depth == 32)
1519	&& ximage->byte_order == host_byte_order)
1520	{	556	}
1521	uint32_t *p1, *pf, *p, *pl;
1522	p1 = (uint32_t *) ximage->data;
1523	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1524		557
1525	while (p1 < pf)	558	img->contrast (c.r, c.g, c.b, c.a);
1526	{	559
1527	p = p1;	560	if (shade > 100)
1528	pl = p1 + ximage->width;
1529	for (; p < pl; p++)
1530	{
1531	*p = lookup_r[(*p & 0xff0000) >> 16] |
1532	lookup_g[(*p & 0x00ff00) >> 8] |
1533	lookup_b[(*p & 0x0000ff)] |
1534	(*p & 0xff000000);
1535	}
1536	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1537	}
1538	}	561	{
1539	else	562	c.a = 0xffff;
		563	c.r =
		564	c.g =
		565	c.b = 0xffff * (shade - 100) / 100;
		566	img->brightness (c.r, c.g, c.b, c.a);
1540	{	567	}
1541	for (int y = 0; y < ximage->height; y++)
1542	for (int x = 0; x < ximage->width; x++)
1543	{
1544	unsigned long pixel = XGetPixel (ximage, x, y);
1545	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1546	lookup_g[(pixel & mask_g) >> sh_g] |
1547	lookup_b[(pixel & mask_b) >> sh_b];
1548	XPutPixel (ximage, x, y, pixel);
1549	}
1550	}
1551
1552	free (lookup);
1553	}	568	}
1554	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	569
		570	#endif /* HAVE_BG_PIXMAP */

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