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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.188 by sf-exg, Thu Dec 29 12:25:50 2011 UTC vs.
Revision 1.254 by sf-exg, Sun Dec 30 20:28:31 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	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
38	# if XRENDER
39	static Picture
40	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
41	{
42	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
43
44	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
45	XRenderPictureAttributes pa;
46	pa.repeat = True;
47	pa.component_alpha = component_alpha;
48	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
49
50	XFreePixmap (dpy, pixmap);
51
52	return mask;
53	}
54	# endif
55		29
56	void	30	void
57	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
58	{	32	{
59	#ifdef HAVE_AFTERIMAGE	33	# if BG_IMAGE_FROM_ROOT
60	if (original_asim)	34	delete root_img;
61	safe_asimage_destroy (original_asim);	35	root_img = 0;
62	if (asv)
63	destroy_asvisual (asv, 0);
64	if (asimman)
65	destroy_image_manager (asimman, 0);
66	#endif	36	# endif
67		37
68	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
69	if (pixbuf)	39	fimage.destroy ();
70	g_object_unref (pixbuf);
71	#endif	40	# endif
72
73	if (bg_pixmap)
74	XFreePixmap (dpy, bg_pixmap);
75	}	41	}
76		42
77	bool	43	bool
78	rxvt_term::bg_set_position (int x, int y)	44	rxvt_term::bg_window_size_sensitive ()
79	{	45	{
		46	# if BG_IMAGE_FROM_ROOT
		47	if (root_img)
		48	return true;
		49	# endif
80		50
81	if (target_x != x	51	# if BG_IMAGE_FROM_FILE
82	|| target_y != y)	52	if (fimage.img)
83	{	53	{
84	target_x = x;	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
85	target_y = y;	55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
86	return true;	57	return true;
87	}	58	}
		59	# endif
		60
88	return false;	61	return false;
89	}	62	}
90		63
91	bool	64	bool
92	rxvt_term::bg_window_size_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
93	{	66	{
94	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
95	if (bg_flags & BG_IS_TRANSPARENT)	68	if (root_img)
96	return true;	69	return true;
97	# endif	70	# endif
98		71
99	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
100	if (bg_flags & BG_IS_FROM_FILE)	73	if (fimage.img)
101	{	74	{
102	if (bg_flags & BG_IS_SIZE_SENSITIVE)	75	if (fimage.flags & IM_ROOT_ALIGN)
103	return true;	76	return true;
104	}	77	}
105	# endif	78	# endif
106		79
107	return false;	80	return false;
108	}	81	}
109		82
110	bool
111	rxvt_term::bg_window_position_sensitive ()
112	{
113	# ifdef ENABLE_TRANSPARENCY
114	if (bg_flags & BG_IS_TRANSPARENT)
115	return true;
116	# endif
117
118	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
119	if (bg_flags & BG_IS_FROM_FILE)
120	{
121	if (bg_flags & BG_ROOT_ALIGN)
122	return true;
123	}
124	# endif
125
126	return false;
127	}
128
129	# ifdef BG_IMAGE_FROM_FILE
130	static inline bool
131	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
132	{
133	if (geom_flags & flag)
134	{
135	if (new_value > 1000)
136	new_value = 1000;
137	if (new_value != scale)
138	{
139	scale = new_value;
140	return true;
141	}
142	}
143	return false;
144	}
145
146	static inline bool
147	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
148	{
149	if (geom_flags & flag)
150	{
151	if (new_value < -100)
152	new_value = -100;
153	else if (new_value > 200)
154	new_value = 200;
155	if (new_value != align)
156	{
157	align = new_value;
158	return true;
159	}
160	}
161	return false;
162	}
163
164	static inline int	84	static inline int
165	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
166	{	86	{
167	int diff = window_size - image_size;
168	int smaller = min (image_size, window_size);
169
170	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
171	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
172	else if (align > 100 && align <= 200)	89	else if (align > 100)
173	return (align - 100) * smaller / 100 + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
174	else if (align >= -100 && align < 0)	91	else
175	return (align + 100) * smaller / 100 - image_size;	92	return lerp (-image_size, 0, align + 100);
176	return 0;
177	}	93	}
178		94
179	static inline int	95	static void
180	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)
181	{	97	{
182	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
183	dst_pos = pos;
184	dst_size = size;
185	if (pos < 0)
186	{
187	src_pos = -pos;
188	dst_pos = 0;
189	dst_size += pos;
190	}	99	{
191		100	flags = IM_TILE;
192	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
193	dst_size = target_size - dst_pos;	102	x = y = 0;
194	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	}
195	}	128	}
196		129
197	bool	130	bool
198	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
199	{	132	{
200	bool changed = false;	133	bool changed = false;
201	int geom_flags = 0;	134	int geom_flags = 0;
202	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
203	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
204	unsigned long new_flags = 0;	138	unsigned int h = v_scale;
		139	uint8_t new_flags = 0;
205		140
206	if (geom == NULL)	141	if (geom == NULL)
207	return false;	142	return false;
208		143
209	if (geom[0])	144	if (geom[0])
210	{	145	{
211	char **arr = rxvt_strsplit (':', geom);	146	char **arr = rxvt_strsplit (':', geom);
212		147
213	for (int i = 0; arr[i]; i++)	148	for (int i = 0; arr[i]; i++)
214	{	149	{
215	if (!strcasecmp (arr[i], "style=tiled"))	150	if (!strncasecmp (arr[i], "style=", 6))
216	{	151	{
217	new_flags = BG_TILE;	152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
218	w = h = noScale;
219	x = y = 0;
220	geom_flags = WidthValue|HeightValue|XValue|YValue;	153	geom_flags = WidthValue|HeightValue|XValue|YValue;
221	}	154	}
222	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
223	{
224	new_flags = BG_KEEP_ASPECT;
225	w = h = windowScale;
226	x = y = centerAlign;
227	geom_flags = WidthValue|HeightValue|XValue|YValue;
228	}
229	else if (!strcasecmp (arr[i], "style=stretched"))
230	{
231	new_flags = 0;
232	w = h = windowScale;
233	geom_flags = WidthValue|HeightValue;
234	}
235	else if (!strcasecmp (arr[i], "style=centered"))
236	{
237	new_flags = 0;
238	w = h = noScale;
239	x = y = centerAlign;
240	geom_flags = WidthValue|HeightValue|XValue|YValue;
241	}
242	else if (!strcasecmp (arr[i], "style=root-tiled"))
243	{
244	new_flags = BG_TILE|BG_ROOT_ALIGN;
245	w = h = noScale;
246	geom_flags = WidthValue|HeightValue;
247	}
248	else if (!strcasecmp (arr[i], "op=tile"))	155	else if (!strcasecmp (arr[i], "op=tile"))
249	new_flags |= BG_TILE;	156	new_flags |= IM_TILE;
250	else if (!strcasecmp (arr[i], "op=keep-aspect"))	157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
251	new_flags |= BG_KEEP_ASPECT;	158	new_flags |= IM_KEEP_ASPECT;
252	else if (!strcasecmp (arr[i], "op=root-align"))	159	else if (!strcasecmp (arr[i], "op=root-align"))
253	new_flags |= BG_ROOT_ALIGN;	160	new_flags |= IM_ROOT_ALIGN;
254		161
255	// deprecated	162	// deprecated
256	else if (!strcasecmp (arr[i], "tile"))	163	else if (!strcasecmp (arr[i], "tile"))
257	{	164	{
258	new_flags |= BG_TILE;	165	new_flags |= IM_TILE;
259	w = h = noScale;	166	w = h = noScale;
260	geom_flags |= WidthValue|HeightValue;	167	geom_flags |= WidthValue|HeightValue;
261	}	168	}
262	else if (!strcasecmp (arr[i], "propscale"))	169	else if (!strcasecmp (arr[i], "propscale"))
263	{	170	{
264	new_flags |= BG_KEEP_ASPECT;	171	new_flags |= IM_KEEP_ASPECT;
265	w = h = windowScale;	172	w = h = windowScale;
266	geom_flags |= WidthValue|HeightValue;	173	geom_flags |= WidthValue|HeightValue;
267	}	174	}
268	else if (!strcasecmp (arr[i], "hscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
269	{	176	{
270	new_flags |= BG_TILE;	177	new_flags |= IM_TILE;
271	w = windowScale;	178	w = windowScale;
272	h = noScale;	179	h = noScale;
273	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
274	}	181	}
275	else if (!strcasecmp (arr[i], "vscale"))	182	else if (!strcasecmp (arr[i], "vscale"))
276	{	183	{
277	new_flags |= BG_TILE;	184	new_flags |= IM_TILE;
278	h = windowScale;	185	h = windowScale;
279	w = noScale;	186	w = noScale;
280	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
281	}	188	}
282	else if (!strcasecmp (arr[i], "scale"))	189	else if (!strcasecmp (arr[i], "scale"))
…		…
290	x = y = centerAlign;	197	x = y = centerAlign;
291	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
292	}	199	}
293	else if (!strcasecmp (arr[i], "root"))	200	else if (!strcasecmp (arr[i], "root"))
294	{	201	{
295	new_flags |= BG_TILE|BG_ROOT_ALIGN;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
296	w = h = noScale;	203	w = h = noScale;
297	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
298	}	205	}
299		206
300	else	207	else
…		…
302	} /* done parsing ops */	209	} /* done parsing ops */
303		210
304	rxvt_free_strsplit (arr);	211	rxvt_free_strsplit (arr);
305	}	212	}
306		213
307	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;	214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
308		215
309	if (!update)	216	if (!update)
310	{	217	{
311	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
312	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
317	w = h = defaultScale;	224	w = h = defaultScale;
318	else if (!(geom_flags & HeightValue))	225	else if (!(geom_flags & HeightValue))
319	h = w;	226	h = w;
320	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
321	w = h;	228	w = h;
322
323	geom_flags |= WidthValue|HeightValue|XValue|YValue;
324	}
325
326	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
327	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
328	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
329	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
330
331	if (new_flags != bg_flags)
332	{	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	{
333	bg_flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
334	changed = true;	245	changed = true;
335	}	246	}
336		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
337	return changed;	253	return changed;
338	}	254	}
339		255
340	void	256	void
341	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)
342	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
343	int target_width = szHint.width;	261	int parent_width = szHint.width;
344	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);
345		265
346	w = h_scale * target_width / 100;	266	w = h_scale * parent_width / 100;
347	h = v_scale * target_height / 100;	267	h = v_scale * parent_height / 100;
348		268
349	if (bg_flags & BG_KEEP_ASPECT)	269	if (image.flags & IM_KEEP_ASPECT)
350	{	270	{
351	float scale = (float)w / image_width;	271	float scale = (float)w / image_width;
352	min_it (scale, (float)h / image_height);	272	min_it (scale, (float)h / image_height);
353	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
354	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
355	}	275	}
356		276
357	if (!w) w = image_width;	277	if (!w) w = image_width;
358	if (!h) h = image_height;	278	if (!h) h = image_height;
359		279
360	if (bg_flags & BG_ROOT_ALIGN)	280	if (image.flags & IM_ROOT_ALIGN)
361	{	281	{
362	x = -target_x;	282	x = -parent_x;
363	y = -target_y;	283	y = -parent_y;
364	}	284	}
365	else	285	else
366	{	286	{
367	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
368	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
369	}
370
371	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
372	if (!(bg_flags & BG_TILE)
373	|| h_scale || v_scale
374	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
375	|| w > target_width || h > target_height)
376	bg_flags |= BG_IS_SIZE_SENSITIVE;
377	}
378
379	# ifdef HAVE_AFTERIMAGE
380	bool
381	rxvt_term::render_image (unsigned long tr_flags)
382	{
383	init_asv ();
384
385	ASImage *background = NULL;
386	ARGB32 background_tint = TINT_LEAVE_SAME;
387
388	# ifdef ENABLE_TRANSPARENCY
389	if (tr_flags)
390	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
391
392	if (tr_flags & BG_NEEDS_TINT)
393	{	289	}
394	ShadingInfo as_shade;	290	}
395	as_shade.shading = shade;
396		291
397	rgba c;	292	bool
398	tint.get (c);	293	rxvt_term::render_image (rxvt_image &image)
399	as_shade.tintColor.red = c.r;	294	{
400	as_shade.tintColor.green = c.g;
401	as_shade.tintColor.blue = c.b;
402
403	background_tint = shading2tint32 (&as_shade);
404	}
405
406	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
407	{
408	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
409	ASA_XImage,
410	100, ASIMAGE_QUALITY_DEFAULT);
411	if (tmp)
412	{
413	destroy_asimage (&background);
414	background = tmp;
415	}
416	}
417	# endif
418
419	ASImage *result = 0;
420
421	int target_width = szHint.width;	295	int parent_width = szHint.width;
422	int target_height = szHint.height;	296	int parent_height = szHint.height;
423	int new_pmap_width = target_width;
424	int new_pmap_height = target_height;
425		297
426	int x = 0;	298	int x = 0;
427	int y = 0;	299	int y = 0;
428	int w = 0;	300	int w = 0;
429	int h = 0;	301	int h = 0;
430		302
431	if (original_asim)	303	get_image_geometry (image, w, h, x, y);
432	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
433		304
434	if (!original_asim
435	|| (!(bg_flags & BG_ROOT_ALIGN)
436	&& (x >= target_width
437	|| y >= target_height
438	|| x + w <= 0
439	|| y + h <= 0)))
440	{
441	if (background)
442	{
443	new_pmap_width = background->width;
444	new_pmap_height = background->height;
445	result = background;
446
447	if (background_tint != TINT_LEAVE_SAME)
448	{
449	ASImage *tmp = tile_asimage (asv, background, 0, 0,
450	target_width, target_height, background_tint,
451	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
452	if (tmp)
453	result = tmp;
454	}
455	}
456	else
457	new_pmap_width = new_pmap_height = 0;
458	}
459	else
460	{
461	result = original_asim;
462
463	if (w != original_asim->width
464	|| h != original_asim->height)
465	{
466	result = scale_asimage (asv, original_asim,
467	w, h,
468	ASA_XImage,
469	100, ASIMAGE_QUALITY_DEFAULT);
470	}
471
472	if (background == NULL)
473	{
474	if (bg_flags & BG_TILE)
475	{
476	/* if tiling - pixmap has to be sized exactly as the image,
477	but there is no need to make it bigger than the window! */
478	new_pmap_width = min (result->width, target_width);
479	new_pmap_height = min (result->height, target_height);
480
481	/* we also need to tile our image in both directions */
482	ASImage *tmp = tile_asimage (asv, result,
483	(int)result->width - x,
484	(int)result->height - y,
485	new_pmap_width,
486	new_pmap_height,
487	TINT_LEAVE_SAME, ASA_XImage,
488	100, ASIMAGE_QUALITY_DEFAULT);
489	if (tmp)
490	{
491	if (result != original_asim)
492	destroy_asimage (&result);
493
494	result = tmp;
495	}
496	}
497	}
498	else
499	{
500	/* if blending background and image - pixmap has to be sized same as target window */
501	ASImageLayer *layers = create_image_layers (2);
502
503	layers[0].im = background;
504	layers[0].clip_width = target_width;
505	layers[0].clip_height = target_height;
506	layers[0].tint = background_tint;
507	layers[1].im = result;
508
509	if (bg_flags & BG_TILE)
510	{
511	/* tile horizontally */
512	while (x > 0) x -= (int)result->width;
513	layers[1].dst_x = x;
514	layers[1].clip_width = result->width+target_width;
515	}
516	else
517	{
518	/* clip horizontally */
519	layers[1].dst_x = x;
520	layers[1].clip_width = result->width;
521	}
522
523	if (bg_flags & BG_TILE)
524	{
525	while (y > 0) y -= (int)result->height;
526	layers[1].dst_y = y;
527	layers[1].clip_height = result->height + target_height;
528	}
529	else
530	{
531	layers[1].dst_y = y;
532	layers[1].clip_height = result->height;
533	}
534
535	if (rs[Rs_blendtype])
536	{
537	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
538	if (layers[1].merge_scanlines == NULL)
539	layers[1].merge_scanlines = alphablend_scanlines;
540	}
541
542	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
543	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
544
545	if (tmp)
546	{
547	if (result != original_asim)
548	destroy_asimage (&result);
549
550	result = tmp;
551	}
552
553	free (layers);
554	}
555	}
556
557	bool ret = false;
558
559	if (result)
560	{
561	XGCValues gcv;
562	GC gc;
563
564	/* create Pixmap */
565	if (bg_pixmap == None
566	|| bg_pmap_width != new_pmap_width
567	|| bg_pmap_height != new_pmap_height)
568	{
569	if (bg_pixmap)
570	XFreePixmap (dpy, bg_pixmap);
571	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
572	bg_pmap_width = new_pmap_width;
573	bg_pmap_height = new_pmap_height;
574	}
575	/* fill with background color (if result's not completely overlapping it) */
576	gcv.foreground = pix_colors[Color_bg];
577	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
578
579	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
580	int dst_width = result->width, dst_height = result->height;
581	if (background == NULL)
582	{
583	if (!(bg_flags & BG_TILE))
584	{
585	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
586	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
587	}
588
589	if (dst_x > 0 || dst_y > 0
590	|| dst_x + dst_width < new_pmap_width
591	|| dst_y + dst_height < new_pmap_height)
592	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
593	}
594
595	/* put result on pixmap */
596	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
597	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
598
599	if (result != background && result != original_asim)
600	destroy_asimage (&result);
601
602	XFreeGC (dpy, gc);
603
604	ret = true;
605	}
606
607	if (background)
608	destroy_asimage (&background);
609
610	return ret;
611	}
612	# endif /* HAVE_AFTERIMAGE */
613
614	# ifdef HAVE_PIXBUF
615	bool
616	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
617	int src_x, int src_y, int dst_x, int dst_y,
618	unsigned int width, unsigned int height)
619	{
620	XImage *ximage;
621	char *data, *line;
622	int bytes_per_pixel;
623	int width_r, width_g, width_b;
624	int sh_r, sh_g, sh_b;
625	int rowstride;
626	int channels;
627	unsigned char *row;
628
629	if (visual->c_class != TrueColor)
630	return false;
631
632	if (depth == 24 || depth == 32)
633	bytes_per_pixel = 4;
634	else if (depth == 15 || depth == 16)
635	bytes_per_pixel = 2;
636	else
637	return false;
638
639	width_r = ecb_popcount32 (visual->red_mask);
640	width_g = ecb_popcount32 (visual->green_mask);
641	width_b = ecb_popcount32 (visual->blue_mask);
642
643	if (width_r > 8 || width_g > 8 || width_b > 8)
644	return false;
645
646	sh_r = ecb_ctz32 (visual->red_mask);
647	sh_g = ecb_ctz32 (visual->green_mask);
648	sh_b = ecb_ctz32 (visual->blue_mask);
649
650	if (width > INT_MAX / height / bytes_per_pixel)
651	return false;
652
653	data = (char *)malloc (width * height * bytes_per_pixel);
654	if (!data)
655	return false;
656
657	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
658	width, height, bytes_per_pixel * 8, 0);
659	if (!ximage)
660	{
661	free (data);
662	return false;
663	}
664
665	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
666
667	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
668	channels = gdk_pixbuf_get_n_channels (pixbuf);
669	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
670	line = data;
671
672	for (int y = 0; y < height; y++)
673	{
674	for (int x = 0; x < width; x++)
675	{
676	unsigned char *pixel = row + x * channels;
677	uint32_t value;
678
679	value = ((pixel[0] >> (8 - width_r)) << sh_r)
680	| ((pixel[1] >> (8 - width_g)) << sh_g)
681	| ((pixel[2] >> (8 - width_b)) << sh_b);
682
683	if (bytes_per_pixel == 4)
684	((uint32_t *)line)[x] = value;
685	else
686	((uint16_t *)line)[x] = value;
687	}
688
689	row += rowstride;
690	line += ximage->bytes_per_line;
691	}
692
693	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
694	XDestroyImage (ximage);
695	return true;
696	}
697
698	bool
699	rxvt_term::render_image (unsigned long tr_flags)
700	{
701	if (!pixbuf)
702	return false;
703
704	if (tr_flags
705	&& !(bg_flags & BG_HAS_RENDER))
706	return false;
707
708	GdkPixbuf *result;
709
710	int image_width = gdk_pixbuf_get_width (pixbuf);
711	int image_height = gdk_pixbuf_get_height (pixbuf);
712
713	int target_width = szHint.width;
714	int target_height = szHint.height;
715	int new_pmap_width = target_width;
716	int new_pmap_height = target_height;
717
718	int x = 0;
719	int y = 0;
720	int w = 0;
721	int h = 0;
722
723	get_image_geometry (image_width, image_height, w, h, x, y);
724
725	if (!(bg_flags & BG_ROOT_ALIGN)	305	if (!(image.flags & IM_ROOT_ALIGN)
726	&& (x >= target_width	306	&& (x >= parent_width
727	|| y >= target_height	307	|| y >= parent_height
728	|| x + w <= 0	308	|| x + w <= 0
729	|| y + h <= 0))	309	|| y + h <= 0))
730	return false;	310	return false;
731		311
732	result = pixbuf;	312	rxvt_img *img = image.img->scale (w, h);
733		313
734	if (w != image_width	314	if (image.flags & IM_TILE)
735	|| h != image_height)	315	img->repeat_mode (RepeatNormal);
736	{
737	result = gdk_pixbuf_scale_simple (pixbuf,
738	w, h,
739	GDK_INTERP_BILINEAR);
740	}
741
742	if (!result)
743	return false;
744
745	bool ret = false;
746
747	XGCValues gcv;
748	GC gc;
749	Pixmap root_pmap;
750
751	image_width = gdk_pixbuf_get_width (result);
752	image_height = gdk_pixbuf_get_height (result);
753
754	if (tr_flags)
755	{
756	root_pmap = bg_pixmap;
757	bg_pixmap = None;
758	}
759	else	316	else
760	{	317	img->repeat_mode (RepeatNone);
761	if (bg_flags & BG_TILE)	318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
762	{
763	new_pmap_width = min (image_width, target_width);
764	new_pmap_height = min (image_height, target_height);
765	}
766	}
767		319
768	if (bg_pixmap == None	320	if (bg_img)
769	|| bg_pmap_width != new_pmap_width	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
770	|| bg_pmap_height != new_pmap_height)
771	{
772	if (bg_pixmap)
773	XFreePixmap (dpy, bg_pixmap);
774	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
775	bg_pmap_width = new_pmap_width;
776	bg_pmap_height = new_pmap_height;
777	}
778		322
779	gcv.foreground = pix_colors[Color_bg];
780	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
781
782	if (gc)
783	{
784	if (bg_flags & BG_TILE)
785	{
786	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
787	pixbuf_to_pixmap (result, tile, gc,
788	0, 0,
789	0, 0,
790	image_width, image_height);
791
792	gcv.tile = tile;
793	gcv.fill_style = FillTiled;
794	gcv.ts_x_origin = x;
795	gcv.ts_y_origin = y;
796	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
797
798	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
799	XFreePixmap (dpy, tile);
800	}
801	else
802	{
803	int src_x, src_y, dst_x, dst_y;
804	int dst_width, dst_height;
805
806	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
807	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
808
809	if (dst_x > 0 || dst_y > 0
810	|| dst_x + dst_width < new_pmap_width
811	|| dst_y + dst_height < new_pmap_height)
812	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
813
814	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
815	pixbuf_to_pixmap (result, bg_pixmap, gc,
816	src_x, src_y,
817	dst_x, dst_y,
818	dst_width, dst_height);
819	}
820
821	#if XRENDER
822	if (tr_flags)
823	{
824	XRenderPictureAttributes pa;
825
826	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
827	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
828		325
829	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	326	delete bg_img;
830	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	327	bg_img = img;
831		328
832	Picture mask = create_xrender_mask (dpy, vt, False, False);
833
834	XRenderColor mask_c;
835
836	mask_c.alpha = 0x8000;
837	mask_c.red = 0;
838	mask_c.green = 0;
839	mask_c.blue = 0;
840	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
841	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
842
843	XRenderFreePicture (dpy, src);
844	XRenderFreePicture (dpy, dst);
845	XRenderFreePicture (dpy, mask);
846	}
847	#endif
848
849	XFreeGC (dpy, gc);
850
851	ret = true;
852	}
853
854	if (result != pixbuf)
855	g_object_unref (result);
856
857	if (tr_flags)
858	XFreePixmap (dpy, root_pmap);
859
860	return ret;	329	return true;
861	}	330	}
862	# endif /* HAVE_PIXBUF */
863		331
864	bool	332	rxvt_image::rxvt_image ()
865	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)
866	{	346	{
867	if (!file || !*file)	347	if (!file || !*file)
868	return false;	348	return;
869		349
870	bool ret = false;
871	const char *p = strchr (file, ';');	350	const char *p = strchr (file, ';');
872		351
873	if (p)	352	if (p)
874	{	353	{
875	size_t len = p - file;	354	size_t len = p - file;
…		…
877	memcpy (f, file, len);	356	memcpy (f, file, len);
878	f[len] = '\0';	357	f[len] = '\0';
879	file = f;	358	file = f;
880	}	359	}
881		360
882	# ifdef HAVE_AFTERIMAGE	361	set_file (s, file);
883	if (!asimman)	362	alpha = 0x8000;
884	asimman = create_generic_imageman (rs[Rs_path]);	363	set_geometry (p ? p + 1 : "");
885	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	364	}
886	if (image)
887	{
888	if (original_asim)
889	safe_asimage_destroy (original_asim);
890	original_asim = image;
891	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
892	ret = true;
893	}
894	# endif
895		365
896	# ifdef HAVE_PIXBUF	366	void
897	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	367	rxvt_image::set_file (rxvt_screen *s, const char *file)
898	if (image)	368	{
899	{	369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
900	if (pixbuf)	370	delete img;
901	g_object_unref (pixbuf);	371	img = img2;
902	pixbuf = image;
903	bg_flags |= BG_IS_FROM_FILE;
904	ret = true;
905	}
906	# endif
907
908	if (ret)
909	{
910	if (p)
911	bg_set_geometry (p + 1);
912	else
913	bg_set_default_geometry ();
914	}
915
916	return ret;
917	}	372	}
918		373
919	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
920		375
921	# ifdef ENABLE_TRANSPARENCY
922	bool	376	bool
923	rxvt_term::bg_set_transparent ()	377	image_effects::set_blur (const char *geom)
924	{
925	if (!(bg_flags & BG_IS_TRANSPARENT))
926	{
927	bg_flags |= BG_IS_TRANSPARENT;
928	return true;
929	}
930
931	return false;
932	}
933
934	bool
935	rxvt_term::bg_set_blur (const char *geom)
936	{	378	{
937	bool changed = false;	379	bool changed = false;
938	unsigned int hr, vr;	380	unsigned int hr, vr;
939	int junk;	381	int junk;
940	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
957	{	399	{
958	changed = true;	400	changed = true;
959	v_blurRadius = vr;	401	v_blurRadius = vr;
960	}	402	}
961		403
962	if (v_blurRadius == 0 && h_blurRadius == 0)
963	bg_flags &= ~BG_NEEDS_BLUR;
964	else
965	bg_flags |= BG_NEEDS_BLUR;
966
967	return changed;	404	return changed;
968	}	405	}
969		406
970	void
971	rxvt_term::set_tint_shade_flags ()
972	{
973	rgba c;
974	bool has_shade = shade != 100;
975
976	bg_flags &= ~BG_TINT_FLAGS;
977
978	tint.get (c);
979
980	if (!has_shade
981	&& (c.r <= 0x00ff || c.r >= 0xff00)
982	&& (c.g <= 0x00ff || c.g >= 0xff00)
983	&& (c.b <= 0x00ff || c.b >= 0xff00))
984	bg_flags |= BG_TINT_BITAND;
985
986	if (has_shade
987	|| c.r < 0xff00
988	|| c.g < 0xff00
989	|| c.b < 0xff00)
990	bg_flags |= BG_NEEDS_TINT;
991	}
992
993	bool	407	bool
994	rxvt_term::bg_set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
995	{	409	{
996	if (tint != new_tint)	410	if (!tint_set || tint != new_tint)
997	{	411	{
998	tint = new_tint;	412	tint = new_tint;
999	set_tint_shade_flags ();	413	tint_set = true;
		414
1000	return true;	415	return true;
1001	}	416	}
1002		417
1003	return false;	418	return false;
1004	}	419	}
1005		420
1006	bool	421	bool
1007	rxvt_term::bg_set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
1008	{	423	{
1009	int new_shade = atoi (shade_str);	424	int new_shade = atoi (shade_str);
1010		425
1011	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
1012	if (new_shade < 0)	427	if (new_shade < 0)
1013	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
1014		429
1015	if (new_shade != shade)	430	if (new_shade != shade)
1016	{	431	{
1017	shade = new_shade;	432	shade = new_shade;
1018	set_tint_shade_flags ();
1019	return true;	433	return true;
1020	}	434	}
1021		435
1022	return false;	436	return false;
1023	}	437	}
1024		438
1025	#if XRENDER	439	# if BG_IMAGE_FROM_ROOT
1026	static void
1027	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1028	{
1029	double sigma = radius / 2.0;
1030	double scale = sqrt (2.0 * M_PI) * sigma;
1031	double sum = 0.0;
1032
1033	for (int i = 0; i < width; i++)
1034	{
1035	double x = i - width / 2;
1036	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1037	sum += kernel[i];
1038	}
1039
1040	params[0] = XDoubleToFixed (width);
1041	params[1] = XDoubleToFixed (1);
1042
1043	for (int i = 0; i < width; i++)
1044	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1045	}
1046	#endif
1047
1048	bool
1049	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1050	{
1051	bool ret = false;
1052	#if XRENDER
1053	if (!(bg_flags & BG_HAS_RENDER_CONV))
1054	return false;
1055
1056	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1057	double *kernel = (double *)malloc (size * sizeof (double));
1058	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1059
1060	XRenderPictureAttributes pa;
1061	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1062
1063	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1064	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1065
1066	if (kernel && params)
1067	{
1068	if (h_blurRadius)
1069	{
1070	size = h_blurRadius * 2 + 1;
1071	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1072
1073	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1074	XRenderComposite (dpy,
1075	PictOpSrc,
1076	src,
1077	None,
1078	dst,
1079	0, 0,
1080	0, 0,
1081	0, 0,
1082	width, height);
1083	}
1084
1085	if (v_blurRadius)
1086	{
1087	size = v_blurRadius * 2 + 1;
1088	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1089	::swap (params[0], params[1]);
1090
1091	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1092	XRenderComposite (dpy,
1093	PictOpSrc,
1094	src,
1095	None,
1096	dst,
1097	0, 0,
1098	0, 0,
1099	0, 0,
1100	width, height);
1101	}
1102
1103	ret = true;
1104	}
1105
1106	free (kernel);
1107	free (params);
1108	XRenderFreePicture (dpy, src);
1109	XRenderFreePicture (dpy, dst);
1110	#endif
1111	return ret;
1112	}
1113
1114	bool
1115	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1116	{
1117	bool ret = false;
1118
1119	if (bg_flags & BG_TINT_BITAND)
1120	{
1121	XGCValues gcv;
1122	GC gc;
1123
1124	/* In this case we can tint image server-side getting significant
1125	* performance improvements, as we eliminate XImage transfer
1126	*/
1127	gcv.foreground = Pixel (tint);
1128	gcv.function = GXand;
1129	gcv.fill_style = FillSolid;
1130	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1131	if (gc)
1132	{
1133	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1134	ret = true;
1135	XFreeGC (dpy, gc);
1136	}
1137	}
1138	# if XRENDER
1139	else if (bg_flags & BG_HAS_RENDER)
1140	{
1141	rgba c;
1142
1143	tint.get (c);
1144
1145	if (shade <= 100)
1146	{
1147	c.r = c.r * shade / 100;
1148	c.g = c.g * shade / 100;
1149	c.b = c.b * shade / 100;
1150	}
1151	else
1152	{
1153	c.r = c.r * (200 - shade) / 100;
1154	c.g = c.g * (200 - shade) / 100;
1155	c.b = c.b * (200 - shade) / 100;
1156	}
1157
1158	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1159	XRenderPictureAttributes pa;
1160
1161	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1162
1163	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1164
1165	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1166
1167	XRenderColor mask_c;
1168
1169	mask_c.alpha = 0xffff;
1170	mask_c.red =
1171	mask_c.green =
1172	mask_c.blue = 0;
1173	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1174
1175	mask_c.alpha = 0;
1176	mask_c.red = 0xffff - c.r;
1177	mask_c.green = 0xffff - c.g;
1178	mask_c.blue = 0xffff - c.b;
1179	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1180	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1181
1182	if (shade > 100)
1183	{
1184	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1185	mask_c.alpha = 0;
1186	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1187
1188	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1189	}
1190
1191	ret = true;
1192
1193	XRenderFreePicture (dpy, mask_pic);
1194	XRenderFreePicture (dpy, overlay_pic);
1195	XRenderFreePicture (dpy, back_pic);
1196	}
1197	# endif
1198
1199	return ret;
1200	}
1201
1202	/*	440	/*
1203	* 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
1204	* 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
1205	* our window.	443	* our window.
1206	*/	444	*/
1207	unsigned long	445	bool
1208	rxvt_term::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
1209	{	447	{
1210	unsigned long result = 0;
1211
1212	/* 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
1213	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
1214	*/	450	*/
1215	int screen = display->screen;	451	int screen = display->screen;
1216	int root_depth = DefaultDepth (dpy, screen);
1217	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
1218	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
1219	unsigned int root_pmap_width, root_pmap_height;
1220	int window_width = szHint.width;	454	int parent_width = szHint.width;
1221	int window_height = szHint.height;	455	int parent_height = szHint.height;
1222	int sx, sy;	456	int sx, sy;
1223	XGCValues gcv;
1224	GC gc;
1225		457
1226	sx = target_x;	458	sx = parent_x;
1227	sy = target_y;	459	sy = parent_y;
1228		460
1229	/* check if we are outside of the visible part of the virtual screen : */	461	/* check if we are outside of the visible part of the virtual screen : */
1230	if (sx + window_width <= 0 || sy + window_height <= 0	462	if (sx + parent_width <= 0 || sy + parent_height <= 0
1231	|| sx >= root_width || sy >= root_height)	463	|| sx >= root_width || sy >= root_height)
1232	return 0;	464	return 0;
1233		465
1234	// validate root pixmap and get its size	466	while (sx < 0) sx += root_img->w;
1235	if (root_pixmap != None)	467	while (sy < 0) sy += root_img->h;
1236	{
1237	Window wdummy;
1238	int idummy;
1239	unsigned int udummy;
1240		468
1241	allowedxerror = -1;	469	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1242		470
1243	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	471	if (root_effects.need_blur ())
1244	root_pixmap = None;	472	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1245		473
1246	allowedxerror = 0;	474	if (root_effects.need_tint ())
1247	}	475	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1248		476
1249	Pixmap recoded_root_pmap = root_pixmap;
1250
1251	if (root_pixmap != None && root_depth != depth)
1252	{
1253	#if XRENDER
1254	if (bg_flags & BG_HAS_RENDER)
1255	{
1256	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1257
1258	XRenderPictureAttributes pa;
1259
1260	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1261	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1262
1263	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	477	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1264	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	478	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1265		479
1266	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	480	delete bg_img;
		481	bg_img = img;
1267		482
1268	XRenderFreePicture (dpy, src);
1269	XRenderFreePicture (dpy, dst);
1270	}
1271	else
1272	#endif
1273	recoded_root_pmap = None;
1274	}
1275
1276	if (recoded_root_pmap == None)
1277	return 0;
1278
1279	if (bg_pixmap == None
1280	|| bg_pmap_width != window_width
1281	|| bg_pmap_height != window_height)
1282	{
1283	if (bg_pixmap)
1284	XFreePixmap (dpy, bg_pixmap);
1285	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1286	bg_pmap_width = window_width;
1287	bg_pmap_height = window_height;
1288	}
1289
1290	/* straightforward pixmap copy */
1291	while (sx < 0) sx += root_pmap_width;
1292	while (sy < 0) sy += root_pmap_height;
1293
1294	gcv.tile = recoded_root_pmap;
1295	gcv.fill_style = FillTiled;
1296	gcv.ts_x_origin = -sx;
1297	gcv.ts_y_origin = -sy;
1298	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1299
1300	if (gc)
1301	{
1302	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1303	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1304	XFreeGC (dpy, gc);
1305
1306	if (!(bg_flags & BG_CLIENT_RENDER))
1307	{
1308	if (bg_flags & BG_NEEDS_BLUR)
1309	{
1310	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1311	result &= ~BG_NEEDS_BLUR;
1312	}
1313	if (bg_flags & BG_NEEDS_TINT)
1314	{
1315	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1316	result &= ~BG_NEEDS_TINT;
1317	}
1318	} /* server side rendering completed */
1319	}
1320
1321	if (recoded_root_pmap != root_pixmap)
1322	XFreePixmap (dpy, recoded_root_pmap);
1323
1324	return result;	483	return true;
1325	}	484	}
1326		485
1327	void	486	void
1328	rxvt_term::bg_set_root_pixmap ()	487	rxvt_term::bg_set_root_pixmap ()
1329	{	488	{
1330	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	489	delete root_img;
1331	if (new_root_pixmap == None)	490	root_img = rxvt_img::new_from_root (this);
1332	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1333
1334	root_pixmap = new_root_pixmap;
1335	}	491	}
1336	# endif /* ENABLE_TRANSPARENCY */	492	# endif /* BG_IMAGE_FROM_ROOT */
1337		493
1338	bool	494	void
1339	rxvt_term::bg_render ()	495	rxvt_term::bg_render ()
1340	{	496	{
1341	unsigned long tr_flags = 0;	497	if (bg_flags & BG_INHIBIT_RENDER)
		498	return;
1342		499
1343	bg_invalidate ();	500	delete bg_img;
1344	# ifdef ENABLE_TRANSPARENCY	501	bg_img = 0;
		502	bg_flags = 0;
		503
		504	if (!mapped)
		505	return;
		506
		507	# if BG_IMAGE_FROM_ROOT
		508	if (root_img)
		509	if (render_root_image ())
1345	if (bg_flags & BG_IS_TRANSPARENT)	510	bg_flags |= BG_IS_TRANSPARENT;
1346	{
1347	/* we need to re-generate transparency pixmap in that case ! */
1348	tr_flags = make_transparency_pixmap ();
1349	if (tr_flags == 0)
1350	return false;
1351	bg_flags |= BG_IS_VALID;
1352	}
1353	# endif	511	# endif
1354		512
1355	# ifdef BG_IMAGE_FROM_FILE	513	# if BG_IMAGE_FROM_FILE
1356	if ((bg_flags & BG_IS_FROM_FILE)	514	if (fimage.img)
1357	|| (tr_flags & BG_EFFECTS_FLAGS))	515	render_image (fimage);
1358	{
1359	if (render_image (tr_flags))
1360	bg_flags |= BG_IS_VALID;
1361	}
1362	# endif	516	# endif
1363
1364	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1365	XImage *result = NULL;
1366
1367	if (tr_flags & BG_NEEDS_TINT)
1368	{
1369	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1370	}
1371
1372	if (result)
1373	{
1374	/* our own client-side tinting */
1375	//if (tr_flags & BG_NEEDS_TINT)
1376	if (1)
1377	tint_ximage (DefaultVisual (dpy, display->screen), result);
1378
1379	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1380
1381	if (gc)
1382	{
1383	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1384
1385	XFreeGC (dpy, gc);
1386	}
1387
1388	XDestroyImage (result);
1389	}
1390	# endif
1391
1392	if (!(bg_flags & BG_IS_VALID))
1393	{
1394	if (bg_pixmap != None)
1395	{
1396	XFreePixmap (dpy, bg_pixmap);
1397	bg_pixmap = None;
1398	}
1399	}
1400		517
1401	scr_recolour (false);	518	scr_recolour (false);
1402	bg_flags |= BG_NEEDS_REFRESH;	519	bg_flags |= BG_NEEDS_REFRESH;
1403		520
1404	bg_valid_since = ev::now ();	521	bg_valid_since = ev::now ();
1405
1406	return true;
1407	}	522	}
1408		523
1409	void	524	void
1410	rxvt_term::bg_init ()	525	rxvt_term::bg_init ()
1411	{	526	{
1412	#ifdef ENABLE_TRANSPARENCY	527	#if BG_IMAGE_FROM_ROOT
		528	if (option (Opt_transparent))
		529	{
		530	if (rs [Rs_blurradius])
		531	root_effects.set_blur (rs [Rs_blurradius]);
		532
		533	if (ISSET_PIXCOLOR (Color_tint))
		534	root_effects.set_tint (pix_colors_focused [Color_tint]);
		535
		536	if (rs [Rs_shade])
		537	root_effects.set_shade (rs [Rs_shade]);
		538
		539	bg_set_root_pixmap ();
		540	XSelectInput (dpy, display->root, PropertyChangeMask);
		541	rootwin_ev.start (display, display->root);
		542	}
		543	#endif
		544
		545	#if BG_IMAGE_FROM_FILE
		546	if (rs[Rs_backgroundPixmap])
		547	{
		548	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
		549	if (!bg_window_position_sensitive ())
		550	update_background ();
		551	}
		552	#endif
		553	}
		554
		555	void
		556	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		557	{
1413	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	558	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1414	tint.set (this, c);
1415	shade = 100;
1416	#endif
1417		559
1418	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	560	if (tint_set)
1419	#if XRENDER
1420	int major, minor;
1421	if (XRenderQueryVersion (dpy, &major, &minor))
1422	bg_flags |= BG_HAS_RENDER;
1423	XFilters *filters = XRenderQueryFilters (dpy, vt);
1424	if (filters)
1425	{
1426	for (int i = 0; i < filters->nfilter; i++)
1427	if (!strcmp (filters->filter[i], FilterConvolution))
1428	bg_flags |= BG_HAS_RENDER_CONV;
1429
1430	XFree (filters);
1431	}
1432	#endif
1433	}
1434
1435	#endif /* HAVE_BG_PIXMAP */
1436
1437	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1438	/* based on code from aterm-0.4.2 */
1439
1440	static inline void
1441	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1442	{
1443	for (int i = 0; i <= mask >> sh; i++)
1444	{
1445	uint32_t tmp;
1446	tmp = i * high;
1447	tmp += (mask >> sh) * low;
1448	lookup[i] = (tmp / 0xffff) << sh;
1449	}
1450	}
1451
1452	void
1453	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)
1454	{
1455	int sh_r, sh_g, sh_b;
1456	uint32_t mask_r, mask_g, mask_b;
1457	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1458	unsigned short low;
1459	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1460
1461	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1462
1463	/* for convenience */
1464	mask_r = visual->red_mask;
1465	mask_g = visual->green_mask;
1466	mask_b = visual->blue_mask;
1467
1468	/* boring lookup table pre-initialization */
1469	switch (ximage->depth)
1470	{
1471	case 15:
1472	if ((mask_r != 0x7c00) ||
1473	(mask_g != 0x03e0) ||
1474	(mask_b != 0x001f))
1475	return;
1476	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1477	lookup_r = lookup;
1478	lookup_g = lookup+32;
1479	lookup_b = lookup+32+32;
1480	sh_r = 10;
1481	sh_g = 5;
1482	sh_b = 0;
1483	break;
1484	case 16:
1485	if ((mask_r != 0xf800) ||
1486	(mask_g != 0x07e0) ||
1487	(mask_b != 0x001f))
1488	return;
1489	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1490	lookup_r = lookup;
1491	lookup_g = lookup+32;
1492	lookup_b = lookup+32+64;
1493	sh_r = 11;
1494	sh_g = 5;
1495	sh_b = 0;
1496	break;
1497	case 24:
1498	if ((mask_r != 0xff0000) ||
1499	(mask_g != 0x00ff00) ||
1500	(mask_b != 0x0000ff))
1501	return;
1502	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1503	lookup_r = lookup;
1504	lookup_g = lookup+256;
1505	lookup_b = lookup+256+256;
1506	sh_r = 16;
1507	sh_g = 8;
1508	sh_b = 0;
1509	break;
1510	case 32:
1511	if ((mask_r != 0xff0000) ||
1512	(mask_g != 0x00ff00) ||
1513	(mask_b != 0x0000ff))
1514	return;
1515	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1516	lookup_r = lookup;
1517	lookup_g = lookup+256;
1518	lookup_b = lookup+256+256;
1519	sh_r = 16;
1520	sh_g = 8;
1521	sh_b = 0;
1522	break;
1523	default:
1524	return; /* we do not support this color depth */
1525	}
1526
1527	rgba c;
1528
1529	tint.get (c);	561	tint.get (c);
1530		562
1531	/* prepare limits for color transformation (each channel is handled separately) */
1532	if (shade > 100)	563	if (shade > 100)
1533	{	564	{
1534	c.r = c.r * (200 - shade) / 100;	565	c.r = c.r * (200 - shade) / 100;
1535	c.g = c.g * (200 - shade) / 100;	566	c.g = c.g * (200 - shade) / 100;
1536	c.b = c.b * (200 - shade) / 100;	567	c.b = c.b * (200 - shade) / 100;
1537
1538	low = 0xffff * (shade - 100) / 100;
1539	}	568	}
1540	else	569	else
1541	{	570	{
1542	c.r = c.r * shade / 100;	571	c.r = c.r * shade / 100;
1543	c.g = c.g * shade / 100;	572	c.g = c.g * shade / 100;
1544	c.b = c.b * shade / 100;	573	c.b = c.b * shade / 100;
1545
1546	low = 0;
1547	}
1548
1549	/* fill our lookup tables */
1550	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1551	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1552	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1553
1554	/* apply table to input image (replacing colors by newly calculated ones) */
1555	if (ximage->bits_per_pixel == 32
1556	&& (ximage->depth == 24 || ximage->depth == 32)
1557	&& ximage->byte_order == host_byte_order)
1558	{	574	}
1559	uint32_t *p1, *pf, *p, *pl;
1560	p1 = (uint32_t *) ximage->data;
1561	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1562		575
1563	while (p1 < pf)	576	img->contrast (c.r, c.g, c.b, c.a);
1564	{	577
1565	p = p1;	578	if (shade > 100)
1566	pl = p1 + ximage->width;
1567	for (; p < pl; p++)
1568	{
1569	*p = lookup_r[(*p & 0xff0000) >> 16] |
1570	lookup_g[(*p & 0x00ff00) >> 8] |
1571	lookup_b[(*p & 0x0000ff)] |
1572	(*p & 0xff000000);
1573	}
1574	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1575	}
1576	}	579	{
1577	else	580	c.a = 0xffff;
		581	c.r =
		582	c.g =
		583	c.b = 0xffff * (shade - 100) / 100;
		584	img->brightness (c.r, c.g, c.b, c.a);
1578	{	585	}
1579	for (int y = 0; y < ximage->height; y++)
1580	for (int x = 0; x < ximage->width; x++)
1581	{
1582	unsigned long pixel = XGetPixel (ximage, x, y);
1583	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1584	lookup_g[(pixel & mask_g) >> sh_g] |
1585	lookup_b[(pixel & mask_b) >> sh_b];
1586	XPutPixel (ximage, x, y, pixel);
1587	}
1588	}
1589
1590	free (lookup);
1591	}	586	}
1592	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	587
		588	#endif /* HAVE_BG_PIXMAP */

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