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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.193 by sf-exg, Sun Jan 1 14:31:29 2012 UTC vs.
Revision 1.236 by sf-exg, Sun Jun 10 13:07:56 2012 UTC

…		…
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
20	* You should have received a copy of the GNU General Public License	20	* You should have received a copy of the GNU General Public License
21	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
24		24
25	#include <cmath>
26	#include "../config.h" /* NECESSARY */	25	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	26	#include "rxvt.h" /* NECESSARY */
28		27
29	#if XRENDER
30	# include <X11/extensions/Xrender.h>
31	#endif
32
33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"
35	#endif
36
37	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
38	# if XRENDER
39	static Picture
40	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
41	{
42	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
43
44	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
45	XRenderPictureAttributes pa;
46	pa.repeat = True;
47	pa.component_alpha = component_alpha;
48	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
49
50	XFreePixmap (dpy, pixmap);
51
52	return mask;
53	}
54	# endif
55		29
56	void	30	void
57	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
58	{	32	{
59	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
60	if (original_asim)	34	delete root_img;
61	safe_asimage_destroy (original_asim);
62	if (asv)
63	destroy_asvisual (asv, 0);
64	if (asimman)
65	destroy_image_manager (asimman, 0);
66	#endif	35	# endif
67		36
68	#ifdef HAVE_PIXBUF	37	# if BG_IMAGE_FROM_FILE
69	if (pixbuf)	38	fimage.destroy ();
70	g_object_unref (pixbuf);
71	#endif	39	# endif
72		40
73	if (bg_pixmap)	41	delete bg_img;
74	XFreePixmap (dpy, bg_pixmap);
75	}	42	}
76		43
77	bool	44	bool
78	rxvt_term::bg_set_position (int x, int y)	45	rxvt_term::bg_set_position (int x, int y)
79	{	46	{
…		…
89	}	56	}
90		57
91	bool	58	bool
92	rxvt_term::bg_window_size_sensitive ()	59	rxvt_term::bg_window_size_sensitive ()
93	{	60	{
94	# ifdef ENABLE_TRANSPARENCY	61	# if ENABLE_TRANSPARENCY
95	if (bg_flags & BG_IS_TRANSPARENT)	62	if (bg_flags & BG_IS_TRANSPARENT)
96	return true;	63	return true;
97	# endif	64	# endif
98		65
99	# ifdef BG_IMAGE_FROM_FILE	66	# if BG_IMAGE_FROM_FILE
100	if (bg_flags & BG_IS_FROM_FILE)	67	if (fimage.img)
101	{	68	{
102	if (bg_flags & BG_IS_SIZE_SENSITIVE)	69	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		70	|| fimage.img->w > szHint.width
		71	|| fimage.img->h > szHint.height)
103	return true;	72	return true;
104	}	73	}
105	# endif	74	# endif
106		75
107	return false;	76	return false;
108	}	77	}
109		78
110	bool	79	bool
111	rxvt_term::bg_window_position_sensitive ()	80	rxvt_term::bg_window_position_sensitive ()
112	{	81	{
113	# ifdef ENABLE_TRANSPARENCY	82	# if ENABLE_TRANSPARENCY
114	if (bg_flags & BG_IS_TRANSPARENT)	83	if (bg_flags & BG_IS_TRANSPARENT)
115	return true;	84	return true;
116	# endif	85	# endif
117		86
118	# ifdef BG_IMAGE_FROM_FILE	87	# if BG_IMAGE_FROM_FILE
119	if (bg_flags & BG_IS_FROM_FILE)	88	if (fimage.img)
120	{	89	{
121	if (bg_flags & BG_ROOT_ALIGN)	90	if (fimage.flags & IM_ROOT_ALIGN)
122	return true;	91	return true;
123	}	92	}
124	# endif	93	# endif
125		94
126	return false;	95	return false;
127	}	96	}
128		97
129	# ifdef BG_IMAGE_FROM_FILE	98	# if BG_IMAGE_FROM_FILE
130	static inline bool
131	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
132	{
133	if (geom_flags & flag)
134	{
135	if (new_value > 1000)
136	new_value = 1000;
137	if (new_value != scale)
138	{
139	scale = new_value;
140	return true;
141	}
142	}
143	return false;
144	}
145
146	static inline bool
147	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
148	{
149	if (geom_flags & flag)
150	{
151	if (new_value < -100)
152	new_value = -100;
153	else if (new_value > 200)
154	new_value = 200;
155	if (new_value != align)
156	{
157	align = new_value;
158	return true;
159	}
160	}
161	return false;
162	}
163
164	static inline int	99	static inline int
165	make_align_position (int align, int window_size, int image_size)	100	make_align_position (int align, int window_size, int image_size)
166	{	101	{
167	int diff = window_size - image_size;
168	int smaller = min (image_size, window_size);
169
170	if (align >= 0 && align <= 100)	102	if (align >= 0 && align <= 100)
171	return diff * align / 100;	103	return lerp (0, window_size - image_size, align);
172	else if (align > 100 && align <= 200)	104	else if (align > 100)
173	return (align - 100) * smaller / 100 + window_size - smaller;	105	return lerp (window_size - image_size, window_size, align - 100);
174	else if (align >= -100 && align < 0)	106	else
175	return (align + 100) * smaller / 100 - image_size;	107	return lerp (-image_size, 0, align + 100);
176	return 0;
177	}	108	}
178		109
179	static inline int	110	static inline int
180	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	111	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
181	{	112	{
…		…
187	src_pos = -pos;	118	src_pos = -pos;
188	dst_pos = 0;	119	dst_pos = 0;
189	dst_size += pos;	120	dst_size += pos;
190	}	121	}
191		122
192	if (dst_pos + dst_size > target_size)
193	dst_size = target_size - dst_pos;	123	min_it (dst_size, target_size - dst_pos);
194	return src_pos;	124	return src_pos;
195	}	125	}
196		126
		127	static void
		128	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
		129	{
		130	if (!strcasecmp (style, "tiled"))
		131	{
		132	flags = IM_TILE;
		133	w = h = noScale;
		134	x = y = 0;
		135	}
		136	else if (!strcasecmp (style, "aspect-stretched"))
		137	{
		138	flags = IM_KEEP_ASPECT;
		139	w = h = windowScale;
		140	x = y = centerAlign;
		141	}
		142	else if (!strcasecmp (style, "stretched"))
		143	{
		144	flags = 0;
		145	w = h = windowScale;
		146	x = y = centerAlign;
		147	}
		148	else if (!strcasecmp (style, "centered"))
		149	{
		150	flags = 0;
		151	w = h = noScale;
		152	x = y = centerAlign;
		153	}
		154	else if (!strcasecmp (style, "root-tiled"))
		155	{
		156	flags = IM_TILE|IM_ROOT_ALIGN;
		157	w = h = noScale;
		158	x = y = 0;
		159	}
		160	}
		161
197	bool	162	bool
198	rxvt_term::bg_set_geometry (const char *geom, bool update)	163	rxvt_image::set_geometry (const char *geom, bool update)
199	{	164	{
200	bool changed = false;	165	bool changed = false;
201	int geom_flags = 0;	166	int geom_flags = 0;
202	int x = 0, y = 0;	167	int x = h_align;
		168	int y = v_align;
203	unsigned int w = 0, h = 0;	169	unsigned int w = h_scale;
204	unsigned long new_flags = 0;	170	unsigned int h = v_scale;
		171	uint8_t new_flags = 0;
205		172
206	if (geom == NULL)	173	if (geom == NULL)
207	return false;	174	return false;
208		175
209	if (geom[0])	176	if (geom[0])
210	{	177	{
211	char **arr = rxvt_strsplit (':', geom);	178	char **arr = rxvt_strsplit (':', geom);
212		179
213	for (int i = 0; arr[i]; i++)	180	for (int i = 0; arr[i]; i++)
214	{	181	{
215	if (!strcasecmp (arr[i], "style=tiled"))	182	if (!strncasecmp (arr[i], "style=", 6))
216	{	183	{
217	new_flags = BG_TILE;	184	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;	185	geom_flags = WidthValue|HeightValue|XValue|YValue;
221	}	186	}
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"))	187	else if (!strcasecmp (arr[i], "op=tile"))
249	new_flags |= BG_TILE;	188	new_flags |= IM_TILE;
250	else if (!strcasecmp (arr[i], "op=keep-aspect"))	189	else if (!strcasecmp (arr[i], "op=keep-aspect"))
251	new_flags |= BG_KEEP_ASPECT;	190	new_flags |= IM_KEEP_ASPECT;
252	else if (!strcasecmp (arr[i], "op=root-align"))	191	else if (!strcasecmp (arr[i], "op=root-align"))
253	new_flags |= BG_ROOT_ALIGN;	192	new_flags |= IM_ROOT_ALIGN;
254		193
255	// deprecated	194	// deprecated
256	else if (!strcasecmp (arr[i], "tile"))	195	else if (!strcasecmp (arr[i], "tile"))
257	{	196	{
258	new_flags |= BG_TILE;	197	new_flags |= IM_TILE;
259	w = h = noScale;	198	w = h = noScale;
260	geom_flags |= WidthValue|HeightValue;	199	geom_flags |= WidthValue|HeightValue;
261	}	200	}
262	else if (!strcasecmp (arr[i], "propscale"))	201	else if (!strcasecmp (arr[i], "propscale"))
263	{	202	{
264	new_flags |= BG_KEEP_ASPECT;	203	new_flags |= IM_KEEP_ASPECT;
265	w = h = windowScale;	204	w = h = windowScale;
266	geom_flags |= WidthValue|HeightValue;	205	geom_flags |= WidthValue|HeightValue;
267	}	206	}
268	else if (!strcasecmp (arr[i], "hscale"))	207	else if (!strcasecmp (arr[i], "hscale"))
269	{	208	{
270	new_flags |= BG_TILE;	209	new_flags |= IM_TILE;
271	w = windowScale;	210	w = windowScale;
272	h = noScale;	211	h = noScale;
273	geom_flags |= WidthValue|HeightValue;	212	geom_flags |= WidthValue|HeightValue;
274	}	213	}
275	else if (!strcasecmp (arr[i], "vscale"))	214	else if (!strcasecmp (arr[i], "vscale"))
276	{	215	{
277	new_flags |= BG_TILE;	216	new_flags |= IM_TILE;
278	h = windowScale;	217	h = windowScale;
279	w = noScale;	218	w = noScale;
280	geom_flags |= WidthValue|HeightValue;	219	geom_flags |= WidthValue|HeightValue;
281	}	220	}
282	else if (!strcasecmp (arr[i], "scale"))	221	else if (!strcasecmp (arr[i], "scale"))
…		…
290	x = y = centerAlign;	229	x = y = centerAlign;
291	geom_flags |= WidthValue|HeightValue|XValue|YValue;	230	geom_flags |= WidthValue|HeightValue|XValue|YValue;
292	}	231	}
293	else if (!strcasecmp (arr[i], "root"))	232	else if (!strcasecmp (arr[i], "root"))
294	{	233	{
295	new_flags |= BG_TILE|BG_ROOT_ALIGN;	234	new_flags |= IM_TILE|IM_ROOT_ALIGN;
296	w = h = noScale;	235	w = h = noScale;
297	geom_flags |= WidthValue|HeightValue;	236	geom_flags |= WidthValue|HeightValue;
298	}	237	}
299		238
300	else	239	else
…		…
302	} /* done parsing ops */	241	} /* done parsing ops */
303		242
304	rxvt_free_strsplit (arr);	243	rxvt_free_strsplit (arr);
305	}	244	}
306		245
307	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;	246	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
308		247
309	if (!update)	248	if (!update)
310	{	249	{
311	if (!(geom_flags & XValue))	250	if (!(geom_flags & XValue))
312	x = y = defaultAlign;	251	x = y = defaultAlign;
…		…
317	w = h = defaultScale;	256	w = h = defaultScale;
318	else if (!(geom_flags & HeightValue))	257	else if (!(geom_flags & HeightValue))
319	h = w;	258	h = w;
320	else if (!(geom_flags & WidthValue))	259	else if (!(geom_flags & WidthValue))
321	w = h;	260	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	{	261	}
		262
		263	clamp_it (x, -100, 200);
		264	clamp_it (y, -100, 200);
		265
		266	if (flags != new_flags
		267	|| h_scale != w
		268	|| v_scale != h
		269	|| h_align != x
		270	|| v_align != y)
		271	{
333	bg_flags = new_flags;	272	flags = new_flags;
		273	h_scale = w;
		274	v_scale = h;
		275	h_align = x;
		276	v_align = y;
334	changed = true;	277	changed = true;
335	}	278	}
336		279
		280	if (is_size_sensitive ())
		281	flags |= IM_IS_SIZE_SENSITIVE;
		282	else
		283	flags &= ~IM_IS_SIZE_SENSITIVE;
		284
337	return changed;	285	return changed;
338	}	286	}
339		287
340	void	288	void
341	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	289	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
342	{	290	{
		291	int image_width = image.img->w;
		292	int image_height = image.img->h;
343	int target_width = szHint.width;	293	int target_width = szHint.width;
344	int target_height = szHint.height;	294	int target_height = szHint.height;
		295	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		296	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
345		297
346	w = h_scale * target_width / 100;	298	w = h_scale * target_width / 100;
347	h = v_scale * target_height / 100;	299	h = v_scale * target_height / 100;
348		300
349	if (bg_flags & BG_KEEP_ASPECT)	301	if (image.flags & IM_KEEP_ASPECT)
350	{	302	{
351	float scale = (float)w / image_width;	303	float scale = (float)w / image_width;
352	min_it (scale, (float)h / image_height);	304	min_it (scale, (float)h / image_height);
353	w = image_width * scale + 0.5;	305	w = image_width * scale + 0.5;
354	h = image_height * scale + 0.5;	306	h = image_height * scale + 0.5;
355	}	307	}
356		308
357	if (!w) w = image_width;	309	if (!w) w = image_width;
358	if (!h) h = image_height;	310	if (!h) h = image_height;
359		311
360	if (bg_flags & BG_ROOT_ALIGN)	312	if (image.flags & IM_ROOT_ALIGN)
361	{	313	{
362	x = -target_x;	314	x = -target_x;
363	y = -target_y;	315	y = -target_y;
364	}	316	}
365	else	317	else
366	{	318	{
367	x = make_align_position (h_align, target_width, w);	319	x = make_align_position (image.h_align, target_width, w);
368	y = make_align_position (v_align, target_height, h);	320	y = make_align_position (image.v_align, target_height, h);
369	}
370
371	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
372	if (!(bg_flags & BG_TILE)
373	|| h_scale || v_scale
374	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
375	|| w > target_width || h > target_height)
376	bg_flags |= BG_IS_SIZE_SENSITIVE;
377	}
378
379	# ifdef HAVE_AFTERIMAGE
380	bool
381	rxvt_term::render_image (unsigned long tr_flags)
382	{
383	init_asv ();
384
385	ASImage *background = NULL;
386	ARGB32 background_tint = TINT_LEAVE_SAME;
387
388	# ifdef ENABLE_TRANSPARENCY
389	if (tr_flags)
390	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
391
392	if (tr_flags & BG_NEEDS_TINT)
393	{	321	}
394	ShadingInfo as_shade;	322	}
395	as_shade.shading = shade;
396		323
397	rgba c;	324	bool
398	tint.get (c);	325	rxvt_term::render_image (rxvt_image &image)
399	as_shade.tintColor.red = c.r;	326	{
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;	327	int target_width = szHint.width;
422	int target_height = szHint.height;	328	int target_height = szHint.height;
423	int new_pmap_width = target_width;
424	int new_pmap_height = target_height;
425		329
426	int x = 0;	330	int x = 0;
427	int y = 0;	331	int y = 0;
428	int w = 0;	332	int w = 0;
429	int h = 0;	333	int h = 0;
430		334
431	if (original_asim)	335	get_image_geometry (image, w, h, x, y);
432	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
433		336
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)	337	if (!(image.flags & IM_ROOT_ALIGN)
726	&& (x >= target_width	338	&& (x >= target_width
727	|| y >= target_height	339	|| y >= target_height
728	|| x + w <= 0	340	|| x + w <= 0
729	|| y + h <= 0))	341	|| y + h <= 0))
730	return false;	342	return false;
731		343
732	result = pixbuf;	344	rxvt_img *img = image.img->scale (w, h);
733		345
734	if (w != image_width	346	if (image.flags & IM_TILE)
735	|| h != image_height)	347	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	348	else
760	{	349	img->repeat_mode (RepeatNone);
		350	img->sub_rect (-x, -y, target_width, target_height)->replace (img);
		351
761	if (bg_flags & BG_TILE)	352	if (bg_flags & BG_IS_VALID)
762	{
763	new_pmap_width = min (image_width, target_width);
764	new_pmap_height = min (image_height, target_height);
765	}
766	}	353	{
767		354	double factor = image.alpha * 1. / 0xffff;
768	if (bg_pixmap == None	355	bg_img->blend (img, factor)->replace (img);
769	|| bg_pmap_width != new_pmap_width
770	|| bg_pmap_height != new_pmap_height)
771	{	356	}
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		357
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	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	358	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		359	img->convert_format (format, pix_colors [Color_bg])->replace (img);
825		360
826	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);	361	delete bg_img;
		362	bg_img = img;
827		363
828	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
829
830	Picture mask = create_xrender_mask (dpy, vt, False, False);
831
832	XRenderColor mask_c;
833
834	mask_c.alpha = 0x8000;
835	mask_c.red =
836	mask_c.green =
837	mask_c.blue = 0;
838	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
839
840	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
841
842	XRenderFreePicture (dpy, src);
843	XRenderFreePicture (dpy, dst);
844	XRenderFreePicture (dpy, mask);
845	}
846	#endif
847
848	XFreeGC (dpy, gc);
849
850	ret = true;
851	}
852
853	if (result != pixbuf)
854	g_object_unref (result);
855
856	if (tr_flags)
857	XFreePixmap (dpy, root_pmap);
858
859	return ret;	364	return true;
860	}	365	}
861	# endif /* HAVE_PIXBUF */
862		366
		367	rxvt_image::rxvt_image ()
		368	{
		369	alpha = 0xffff;
		370	flags = 0;
		371	h_scale =
		372	v_scale = defaultScale;
		373	h_align =
		374	v_align = defaultAlign;
		375
		376	img = 0;
		377	}
		378
863	bool	379	bool
864	rxvt_term::bg_set_file (const char *file)	380	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
865	{	381	{
866	if (!file || !*file)	382	if (!file || !*file)
867	return false;	383	return false;
868		384
869	bool ret = false;
870	const char *p = strchr (file, ';');	385	const char *p = strchr (file, ';');
871		386
872	if (p)	387	if (p)
873	{	388	{
874	size_t len = p - file;	389	size_t len = p - file;
…		…
876	memcpy (f, file, len);	391	memcpy (f, file, len);
877	f[len] = '\0';	392	f[len] = '\0';
878	file = f;	393	file = f;
879	}	394	}
880		395
881	# ifdef HAVE_AFTERIMAGE	396	bool ret = set_file (s, file);
882	if (!asimman)	397	alpha = 0x8000;
883	asimman = create_generic_imageman (rs[Rs_path]);
884	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
885	if (image)
886	{
887	if (original_asim)
888	safe_asimage_destroy (original_asim);
889	original_asim = image;
890	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
891	ret = true;
892	}
893	# endif
894
895	# ifdef HAVE_PIXBUF
896	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
897	if (image)
898	{
899	if (pixbuf)
900	g_object_unref (pixbuf);
901	pixbuf = image;
902	bg_flags |= BG_IS_FROM_FILE;
903	ret = true;
904	}
905	# endif
906
907	if (ret)	398	if (ret)
908	{
909	if (p)
910	bg_set_geometry (p + 1);	399	set_geometry (p ? p + 1 : "");
911	else
912	bg_set_default_geometry ();
913	}
914
915	return ret;	400	return ret;
916	}	401	}
917		402
		403	bool
		404	rxvt_image::set_file (rxvt_screen *s, const char *file)
		405	{
		406	delete img;
		407	img = rxvt_img::new_from_file (s, file);
		408	return img != 0;
		409	}
		410
918	# endif /* BG_IMAGE_FROM_FILE */	411	# endif /* BG_IMAGE_FROM_FILE */
919		412
920	# ifdef ENABLE_TRANSPARENCY
921	bool	413	bool
922	rxvt_term::bg_set_transparent ()	414	image_effects::set_blur (const char *geom)
923	{
924	if (!(bg_flags & BG_IS_TRANSPARENT))
925	{
926	bg_flags |= BG_IS_TRANSPARENT;
927	return true;
928	}
929
930	return false;
931	}
932
933	bool
934	rxvt_term::bg_set_blur (const char *geom)
935	{	415	{
936	bool changed = false;	416	bool changed = false;
937	unsigned int hr, vr;	417	unsigned int hr, vr;
938	int junk;	418	int junk;
939	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	419	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
956	{	436	{
957	changed = true;	437	changed = true;
958	v_blurRadius = vr;	438	v_blurRadius = vr;
959	}	439	}
960		440
961	if (h_blurRadius == 0 || v_blurRadius == 0)
962	bg_flags &= ~BG_NEEDS_BLUR;
963	else
964	bg_flags |= BG_NEEDS_BLUR;
965
966	return changed;	441	return changed;
967	}	442	}
968		443
969	void
970	rxvt_term::set_tint_shade_flags ()
971	{
972	rgba c;
973	bool has_shade = shade != 100;
974
975	bg_flags &= ~BG_TINT_FLAGS;
976
977	tint.get (c);
978
979	if (!has_shade
980	&& (c.r <= 0x00ff || c.r >= 0xff00)
981	&& (c.g <= 0x00ff || c.g >= 0xff00)
982	&& (c.b <= 0x00ff || c.b >= 0xff00))
983	bg_flags |= BG_TINT_BITAND;
984
985	if (has_shade
986	|| c.r < 0xff00
987	|| c.g < 0xff00
988	|| c.b < 0xff00)
989	bg_flags |= BG_NEEDS_TINT;
990	}
991
992	bool	444	bool
993	rxvt_term::bg_set_tint (rxvt_color &new_tint)	445	image_effects::set_tint (const rxvt_color &new_tint)
994	{	446	{
995	if (tint != new_tint)	447	if (!tint_set || tint != new_tint)
996	{	448	{
997	tint = new_tint;	449	tint = new_tint;
998	set_tint_shade_flags ();	450	tint_set = true;
		451
999	return true;	452	return true;
1000	}	453	}
1001		454
1002	return false;	455	return false;
1003	}	456	}
1004		457
1005	bool	458	bool
1006	rxvt_term::bg_set_shade (const char *shade_str)	459	image_effects::set_shade (const char *shade_str)
1007	{	460	{
1008	int new_shade = atoi (shade_str);	461	int new_shade = atoi (shade_str);
1009		462
1010	clamp_it (new_shade, -100, 200);	463	clamp_it (new_shade, -100, 200);
1011	if (new_shade < 0)	464	if (new_shade < 0)
1012	new_shade = 200 - (100 + new_shade);	465	new_shade = 200 - (100 + new_shade);
1013		466
1014	if (new_shade != shade)	467	if (new_shade != shade)
1015	{	468	{
1016	shade = new_shade;	469	shade = new_shade;
1017	set_tint_shade_flags ();
1018	return true;	470	return true;
1019	}	471	}
1020		472
1021	return false;	473	return false;
1022	}	474	}
1023		475
1024	#if XRENDER	476	# if ENABLE_TRANSPARENCY
1025	static void
1026	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1027	{
1028	double sigma = radius / 2.0;
1029	double scale = sqrt (2.0 * M_PI) * sigma;
1030	double sum = 0.0;
1031
1032	for (int i = 0; i < width; i++)
1033	{
1034	double x = i - width / 2;
1035	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1036	sum += kernel[i];
1037	}
1038
1039	params[0] = XDoubleToFixed (width);
1040	params[1] = XDoubleToFixed (1);
1041
1042	for (int i = 0; i < width; i++)
1043	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1044	}
1045	#endif
1046
1047	bool
1048	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1049	{
1050	bool ret = false;
1051	#if XRENDER
1052	if (!(bg_flags & BG_HAS_RENDER_CONV))
1053	return false;
1054
1055	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1056	double *kernel = (double *)malloc (size * sizeof (double));
1057	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1058
1059	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1060
1061	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1062	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1063
1064	if (kernel && params)
1065	{
1066	size = h_blurRadius * 2 + 1;
1067	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1068
1069	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1070	XRenderComposite (dpy,
1071	PictOpSrc,
1072	src,
1073	None,
1074	dst,
1075	0, 0,
1076	0, 0,
1077	0, 0,
1078	width, height);
1079
1080	size = v_blurRadius * 2 + 1;
1081	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1082	::swap (params[0], params[1]);
1083
1084	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1085	XRenderComposite (dpy,
1086	PictOpSrc,
1087	src,
1088	None,
1089	dst,
1090	0, 0,
1091	0, 0,
1092	0, 0,
1093	width, height);
1094
1095	ret = true;
1096	}
1097
1098	free (kernel);
1099	free (params);
1100	XRenderFreePicture (dpy, src);
1101	XRenderFreePicture (dpy, dst);
1102	#endif
1103	return ret;
1104	}
1105
1106	bool
1107	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1108	{
1109	bool ret = false;
1110
1111	if (bg_flags & BG_TINT_BITAND)
1112	{
1113	XGCValues gcv;
1114	GC gc;
1115
1116	/* In this case we can tint image server-side getting significant
1117	* performance improvements, as we eliminate XImage transfer
1118	*/
1119	gcv.foreground = Pixel (tint);
1120	gcv.function = GXand;
1121	gcv.fill_style = FillSolid;
1122	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1123	if (gc)
1124	{
1125	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1126	ret = true;
1127	XFreeGC (dpy, gc);
1128	}
1129	}
1130	# if XRENDER
1131	else if (bg_flags & BG_HAS_RENDER)
1132	{
1133	rgba c;
1134
1135	tint.get (c);
1136
1137	if (shade <= 100)
1138	{
1139	c.r = c.r * shade / 100;
1140	c.g = c.g * shade / 100;
1141	c.b = c.b * shade / 100;
1142	}
1143	else
1144	{
1145	c.r = c.r * (200 - shade) / 100;
1146	c.g = c.g * (200 - shade) / 100;
1147	c.b = c.b * (200 - shade) / 100;
1148	}
1149
1150	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1151
1152	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1153
1154	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1155
1156	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1157
1158	XRenderColor mask_c;
1159
1160	mask_c.alpha = 0xffff;
1161	mask_c.red =
1162	mask_c.green =
1163	mask_c.blue = 0;
1164	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1165
1166	mask_c.alpha = 0;
1167	mask_c.red = 0xffff - c.r;
1168	mask_c.green = 0xffff - c.g;
1169	mask_c.blue = 0xffff - c.b;
1170	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1171
1172	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1173
1174	if (shade > 100)
1175	{
1176	mask_c.alpha = 0;
1177	mask_c.red =
1178	mask_c.green =
1179	mask_c.blue = 0xffff * (shade - 100) / 100;
1180	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1181
1182	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1183	}
1184
1185	ret = true;
1186
1187	XRenderFreePicture (dpy, mask_pic);
1188	XRenderFreePicture (dpy, overlay_pic);
1189	XRenderFreePicture (dpy, back_pic);
1190	}
1191	# endif
1192
1193	return ret;
1194	}
1195
1196	/*	477	/*
1197	* Builds a pixmap of the same size as the terminal window that contains	478	* Builds a pixmap of the same size as the terminal window that contains
1198	* the tiled portion of the root pixmap that is supposed to be covered by	479	* the tiled portion of the root pixmap that is supposed to be covered by
1199	* our window.	480	* our window.
1200	*/	481	*/
1201	unsigned long	482	bool
1202	rxvt_term::make_transparency_pixmap ()	483	rxvt_term::render_root_image ()
1203	{	484	{
1204	unsigned long result = 0;
1205
1206	/* root dimensions may change from call to call - but Display structure should	485	/* root dimensions may change from call to call - but Display structure should
1207	* be always up-to-date, so let's use it :	486	* be always up-to-date, so let's use it :
1208	*/	487	*/
1209	int screen = display->screen;	488	int screen = display->screen;
1210	int root_depth = DefaultDepth (dpy, screen);
1211	int root_width = DisplayWidth (dpy, screen);	489	int root_width = DisplayWidth (dpy, screen);
1212	int root_height = DisplayHeight (dpy, screen);	490	int root_height = DisplayHeight (dpy, screen);
1213	unsigned int root_pmap_width, root_pmap_height;
1214	int window_width = szHint.width;	491	int window_width = szHint.width;
1215	int window_height = szHint.height;	492	int window_height = szHint.height;
1216	int sx, sy;	493	int sx, sy;
1217	XGCValues gcv;
1218	GC gc;
1219		494
1220	sx = target_x;	495	sx = target_x;
1221	sy = target_y;	496	sy = target_y;
		497
		498	if (!root_img)
		499	return false;
1222		500
1223	/* check if we are outside of the visible part of the virtual screen : */	501	/* check if we are outside of the visible part of the virtual screen : */
1224	if (sx + window_width <= 0 || sy + window_height <= 0	502	if (sx + window_width <= 0 || sy + window_height <= 0
1225	|| sx >= root_width || sy >= root_height)	503	|| sx >= root_width || sy >= root_height)
1226	return 0;	504	return 0;
1227		505
1228	// validate root pixmap and get its size	506	while (sx < 0) sx += root_img->w;
1229	if (root_pixmap != None)	507	while (sy < 0) sy += root_img->h;
1230	{
1231	Window wdummy;
1232	int idummy;
1233	unsigned int udummy;
1234		508
1235	allowedxerror = -1;	509	rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
1236		510
1237	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	511	if (root_effects.need_blur ())
1238	root_pixmap = None;	512	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1239		513
1240	allowedxerror = 0;	514	if (root_effects.need_tint ())
1241	}	515	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1242		516
1243	Pixmap recoded_root_pmap = root_pixmap;
1244
1245	if (root_pixmap != None && root_depth != depth)
1246	{
1247	#if XRENDER
1248	if (bg_flags & BG_HAS_RENDER)
1249	{
1250	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1251
1252	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1253	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1254
1255	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	517	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1256	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);	518	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1257		519
1258	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	520	delete bg_img;
		521	bg_img = img;
1259		522
1260	XRenderFreePicture (dpy, src);
1261	XRenderFreePicture (dpy, dst);
1262	}
1263	else
1264	#endif
1265	recoded_root_pmap = None;
1266	}
1267
1268	if (recoded_root_pmap == None)
1269	return 0;
1270
1271	if (bg_pixmap == None
1272	|| bg_pmap_width != window_width
1273	|| bg_pmap_height != window_height)
1274	{
1275	if (bg_pixmap)
1276	XFreePixmap (dpy, bg_pixmap);
1277	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1278	bg_pmap_width = window_width;
1279	bg_pmap_height = window_height;
1280	}
1281
1282	/* straightforward pixmap copy */
1283	while (sx < 0) sx += root_pmap_width;
1284	while (sy < 0) sy += root_pmap_height;
1285
1286	gcv.tile = recoded_root_pmap;
1287	gcv.fill_style = FillTiled;
1288	gcv.ts_x_origin = -sx;
1289	gcv.ts_y_origin = -sy;
1290	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1291
1292	if (gc)
1293	{
1294	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1295	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1296
1297	if (!(bg_flags & BG_CLIENT_RENDER))
1298	{
1299	if (bg_flags & BG_NEEDS_BLUR)
1300	{
1301	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1302	result &= ~BG_NEEDS_BLUR;
1303	}
1304	if (bg_flags & BG_NEEDS_TINT)
1305	{
1306	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1307	result &= ~BG_NEEDS_TINT;
1308	}
1309	# ifndef HAVE_AFTERIMAGE
1310	if (result & BG_NEEDS_TINT)
1311	{
1312	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1313	if (ximage)
1314	{
1315	/* our own client-side tinting */
1316	tint_ximage (DefaultVisual (dpy, display->screen), ximage);
1317
1318	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1319	XDestroyImage (ximage);
1320	}
1321	}
1322	# endif
1323	} /* server side rendering completed */
1324
1325	XFreeGC (dpy, gc);
1326	}
1327
1328	if (recoded_root_pmap != root_pixmap)
1329	XFreePixmap (dpy, recoded_root_pmap);
1330
1331	return result;	523	return true;
1332	}	524	}
1333		525
1334	void	526	void
1335	rxvt_term::bg_set_root_pixmap ()	527	rxvt_term::bg_set_root_pixmap ()
1336	{	528	{
1337	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	529	delete root_img;
1338	if (new_root_pixmap == None)	530	root_img = rxvt_img::new_from_root (this);
1339	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1340
1341	root_pixmap = new_root_pixmap;
1342	}	531	}
1343	# endif /* ENABLE_TRANSPARENCY */	532	# endif /* ENABLE_TRANSPARENCY */
1344		533
1345	bool	534	void
1346	rxvt_term::bg_render ()	535	rxvt_term::bg_render ()
1347	{	536	{
1348	unsigned long tr_flags = 0;	537	if (bg_flags & BG_INHIBIT_RENDER)
		538	return;
1349		539
1350	bg_invalidate ();	540	bg_invalidate ();
1351	# ifdef ENABLE_TRANSPARENCY	541	# if ENABLE_TRANSPARENCY
1352	if (bg_flags & BG_IS_TRANSPARENT)	542	if (bg_flags & BG_IS_TRANSPARENT)
1353	{	543	{
1354	/* we need to re-generate transparency pixmap in that case ! */	544	/* we need to re-generate transparency pixmap in that case ! */
1355	tr_flags = make_transparency_pixmap ();
1356	if (tr_flags == 0)
1357	return false;
1358	bg_flags |= BG_IS_VALID;
1359	}
1360	# endif
1361
1362	# ifdef BG_IMAGE_FROM_FILE
1363	if ((bg_flags & BG_IS_FROM_FILE)
1364	|| (tr_flags & BG_EFFECTS_FLAGS))
1365	{
1366	if (render_image (tr_flags))	545	if (render_root_image ())
1367	bg_flags |= BG_IS_VALID;	546	bg_flags |= BG_IS_VALID;
1368	}	547	}
1369	# endif	548	# endif
1370		549
		550	# if BG_IMAGE_FROM_FILE
		551	if (fimage.img)
		552	{
		553	if (render_image (fimage))
		554	bg_flags |= BG_IS_VALID;
		555	}
		556	# endif
		557
1371	if (!(bg_flags & BG_IS_VALID))	558	if (!(bg_flags & BG_IS_VALID))
1372	{	559	{
1373	if (bg_pixmap != None)	560	delete bg_img;
1374	{	561	bg_img = 0;
1375	XFreePixmap (dpy, bg_pixmap);
1376	bg_pixmap = None;
1377	}
1378	}	562	}
1379		563
1380	scr_recolour (false);	564	scr_recolour (false);
1381	bg_flags |= BG_NEEDS_REFRESH;	565	bg_flags |= BG_NEEDS_REFRESH;
1382		566
1383	bg_valid_since = ev::now ();	567	bg_valid_since = ev::now ();
1384
1385	return true;
1386	}	568	}
1387		569
1388	void	570	void
1389	rxvt_term::bg_init ()	571	rxvt_term::bg_init ()
1390	{	572	{
1391	#ifdef ENABLE_TRANSPARENCY	573	#if BG_IMAGE_FROM_FILE
		574	if (rs[Rs_backgroundPixmap])
		575	{
		576	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
		577	&& !bg_window_position_sensitive ())
		578	update_background ();
		579	}
		580	#endif
		581	}
		582
		583	void
		584	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		585	{
1392	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	586	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1393	tint.set (this, c);
1394	shade = 100;
1395	#endif
1396		587
1397	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	588	if (tint_set)
1398	#if XRENDER
1399	int major, minor;
1400	if (XRenderQueryVersion (dpy, &major, &minor))
1401	bg_flags |= BG_HAS_RENDER;
1402	XFilters *filters = XRenderQueryFilters (dpy, vt);
1403	if (filters)
1404	{
1405	for (int i = 0; i < filters->nfilter; i++)
1406	if (!strcmp (filters->filter[i], FilterConvolution))
1407	bg_flags |= BG_HAS_RENDER_CONV;
1408
1409	XFree (filters);
1410	}
1411	#endif
1412	}
1413
1414	#endif /* HAVE_BG_PIXMAP */
1415
1416	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1417	/* based on code from aterm-0.4.2 */
1418
1419	static inline void
1420	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1421	{
1422	for (int i = 0; i <= mask >> sh; i++)
1423	{
1424	uint32_t tmp;
1425	tmp = i * high;
1426	tmp += (mask >> sh) * low;
1427	lookup[i] = (tmp / 0xffff) << sh;
1428	}
1429	}
1430
1431	void
1432	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)
1433	{
1434	int sh_r, sh_g, sh_b;
1435	uint32_t mask_r, mask_g, mask_b;
1436	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1437	unsigned short low;
1438	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1439
1440	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1441
1442	/* for convenience */
1443	mask_r = visual->red_mask;
1444	mask_g = visual->green_mask;
1445	mask_b = visual->blue_mask;
1446
1447	/* boring lookup table pre-initialization */
1448	switch (ximage->depth)
1449	{
1450	case 15:
1451	if ((mask_r != 0x7c00) ||
1452	(mask_g != 0x03e0) ||
1453	(mask_b != 0x001f))
1454	return;
1455	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1456	lookup_r = lookup;
1457	lookup_g = lookup+32;
1458	lookup_b = lookup+32+32;
1459	sh_r = 10;
1460	sh_g = 5;
1461	sh_b = 0;
1462	break;
1463	case 16:
1464	if ((mask_r != 0xf800) ||
1465	(mask_g != 0x07e0) ||
1466	(mask_b != 0x001f))
1467	return;
1468	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1469	lookup_r = lookup;
1470	lookup_g = lookup+32;
1471	lookup_b = lookup+32+64;
1472	sh_r = 11;
1473	sh_g = 5;
1474	sh_b = 0;
1475	break;
1476	case 24:
1477	if ((mask_r != 0xff0000) ||
1478	(mask_g != 0x00ff00) ||
1479	(mask_b != 0x0000ff))
1480	return;
1481	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1482	lookup_r = lookup;
1483	lookup_g = lookup+256;
1484	lookup_b = lookup+256+256;
1485	sh_r = 16;
1486	sh_g = 8;
1487	sh_b = 0;
1488	break;
1489	case 32:
1490	if ((mask_r != 0xff0000) ||
1491	(mask_g != 0x00ff00) ||
1492	(mask_b != 0x0000ff))
1493	return;
1494	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1495	lookup_r = lookup;
1496	lookup_g = lookup+256;
1497	lookup_b = lookup+256+256;
1498	sh_r = 16;
1499	sh_g = 8;
1500	sh_b = 0;
1501	break;
1502	default:
1503	return; /* we do not support this color depth */
1504	}
1505
1506	rgba c;
1507
1508	tint.get (c);	589	tint.get (c);
1509		590
1510	/* prepare limits for color transformation (each channel is handled separately) */
1511	if (shade > 100)	591	if (shade > 100)
1512	{	592	{
1513	c.r = c.r * (200 - shade) / 100;	593	c.r = c.r * (200 - shade) / 100;
1514	c.g = c.g * (200 - shade) / 100;	594	c.g = c.g * (200 - shade) / 100;
1515	c.b = c.b * (200 - shade) / 100;	595	c.b = c.b * (200 - shade) / 100;
1516
1517	low = 0xffff * (shade - 100) / 100;
1518	}	596	}
1519	else	597	else
1520	{	598	{
1521	c.r = c.r * shade / 100;	599	c.r = c.r * shade / 100;
1522	c.g = c.g * shade / 100;	600	c.g = c.g * shade / 100;
1523	c.b = c.b * shade / 100;	601	c.b = c.b * shade / 100;
1524
1525	low = 0;
1526	}
1527
1528	/* fill our lookup tables */
1529	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1530	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1531	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1532
1533	/* apply table to input image (replacing colors by newly calculated ones) */
1534	if (ximage->bits_per_pixel == 32
1535	&& (ximage->depth == 24 || ximage->depth == 32)
1536	&& ximage->byte_order == host_byte_order)
1537	{	602	}
1538	uint32_t *p1, *pf, *p, *pl;
1539	p1 = (uint32_t *) ximage->data;
1540	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1541		603
1542	while (p1 < pf)	604	img->contrast (c.r, c.g, c.b, c.a);
1543	{	605
1544	p = p1;	606	if (shade > 100)
1545	pl = p1 + ximage->width;
1546	for (; p < pl; p++)
1547	{
1548	*p = lookup_r[(*p & 0xff0000) >> 16] |
1549	lookup_g[(*p & 0x00ff00) >> 8] |
1550	lookup_b[(*p & 0x0000ff)] |
1551	(*p & 0xff000000);
1552	}
1553	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1554	}
1555	}	607	{
1556	else	608	c.a = 0xffff;
		609	c.r =
		610	c.g =
		611	c.b = 0xffff * (shade - 100) / 100;
		612	img->brightness (c.r, c.g, c.b, c.a);
1557	{	613	}
1558	for (int y = 0; y < ximage->height; y++)
1559	for (int x = 0; x < ximage->width; x++)
1560	{
1561	unsigned long pixel = XGetPixel (ximage, x, y);
1562	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1563	lookup_g[(pixel & mask_g) >> sh_g] |
1564	lookup_b[(pixel & mask_b) >> sh_b];
1565	XPutPixel (ximage, x, y, pixel);
1566	}
1567	}
1568
1569	free (lookup);
1570	}	614	}
1571	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	615
		616	#endif /* HAVE_BG_PIXMAP */

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