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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.159 by sf-exg, Wed Aug 10 07:34:35 2011 UTC vs.
Revision 1.238 by sf-exg, Sun Jun 10 15:48:08 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	/*
38	* Pixmap geometry string interpretation :
39	* Each geometry string contains zero or one scale/position
40	* adjustment and may optionally be followed by a colon and one or more
41	* colon-delimited pixmap operations.
42	* The following table shows the valid geometry strings and their
43	* effects on the background image :
44	*
45	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
46	* W and H are percentages of the terminal window size.
47	* X and Y are also percentages; e.g., +50+50 centers
48	* the image in the window.
49	*
50	* Pixmap Operations : (should be prepended by a colon)
51	* tile Tile image. Scaling/position modifiers above will affect
52	* the tile size and origin.
53	* propscale When scaling, scale proportionally. That is, maintain the
54	* proper aspect ratio for the image. Any portion of the
55	* background not covered by the image is filled with the
56	* current background color.
57	* scale Scale both up and down
58	*/
59
60	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
61	void	30	void
62	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
63	{	32	{
64	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
65	if (original_asim)	34	delete root_img;
66	safe_asimage_destroy (original_asim);	35	root_img = 0;
67	if (asv)
68	destroy_asvisual (asv, 0);
69	if (asimman)
70	destroy_image_manager (asimman, 0);
71	#endif	36	# endif
72		37
73	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
74	if (pixbuf)	39	fimage.destroy ();
75	g_object_unref (pixbuf);
76	#endif	40	# endif
77		41
78	if (bg_pixmap)	42	delete bg_img;
79	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
80	}	44	}
81		45
82	bool	46	bool
83	rxvt_term::bg_set_position (int x, int y)	47	rxvt_term::bg_set_position (int x, int y)
84	{	48	{
…		…
94	}	58	}
95		59
96	bool	60	bool
97	rxvt_term::bg_window_size_sensitive ()	61	rxvt_term::bg_window_size_sensitive ()
98	{	62	{
99	# ifdef ENABLE_TRANSPARENCY	63	# if ENABLE_TRANSPARENCY
100	if (bg_flags & BG_IS_TRANSPARENT)	64	if (bg_flags & BG_IS_TRANSPARENT)
101	return true;	65	return true;
102	# endif	66	# endif
103		67
104	# ifdef BG_IMAGE_FROM_FILE	68	# if BG_IMAGE_FROM_FILE
105	if (bg_flags & BG_IS_FROM_FILE)	69	if (fimage.img)
106	{	70	{
107	if (bg_flags & BG_IS_SIZE_SENSITIVE)	71	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		72	|| fimage.img->w > szHint.width
		73	|| fimage.img->h > szHint.height)
108	return true;	74	return true;
109	}	75	}
110	# endif	76	# endif
111		77
112	return false;	78	return false;
113	}	79	}
114		80
115	bool	81	bool
116	rxvt_term::bg_window_position_sensitive ()	82	rxvt_term::bg_window_position_sensitive ()
117	{	83	{
118	# ifdef ENABLE_TRANSPARENCY	84	# if ENABLE_TRANSPARENCY
119	if (bg_flags & BG_IS_TRANSPARENT)	85	if (bg_flags & BG_IS_TRANSPARENT)
120	return true;	86	return true;
121	# endif	87	# endif
122		88
123	# ifdef BG_IMAGE_FROM_FILE	89	# if BG_IMAGE_FROM_FILE
124	if (bg_flags & BG_IS_FROM_FILE)	90	if (fimage.img)
125	{	91	{
126	if (bg_flags & BG_ROOT_ALIGN)	92	if (fimage.flags & IM_ROOT_ALIGN)
127	return true;	93	return true;
128	}	94	}
129	# endif	95	# endif
130		96
131	return false;	97	return false;
132	}	98	}
133		99
134	# ifdef BG_IMAGE_FROM_FILE	100	# if BG_IMAGE_FROM_FILE
135	static inline bool
136	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
137	{
138	if (geom_flags & flag)
139	{
140	if (new_value > 1000)
141	new_value = 1000;
142	if (new_value != scale)
143	{
144	scale = new_value;
145	return true;
146	}
147	}
148	return false;
149	}
150
151	static inline bool
152	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
153	{
154	if (geom_flags & flag)
155	{
156	if (new_value < -100)
157	new_value = -100;
158	else if (new_value > 200)
159	new_value = 200;
160	if (new_value != align)
161	{
162	align = new_value;
163	return true;
164	}
165	}
166	return false;
167	}
168
169	static inline int	101	static inline int
170	make_align_position (int align, int window_size, int image_size)	102	make_align_position (int align, int window_size, int image_size)
171	{	103	{
172	int diff = window_size - image_size;
173	int smaller = min (image_size, window_size);
174
175	if (align >= 0 && align <= 100)	104	if (align >= 0 && align <= 100)
176	return diff * align / 100;	105	return lerp (0, window_size - image_size, align);
177	else if (align > 100 && align <= 200)	106	else if (align > 100)
178	return ((align - 100) * smaller / 100) + window_size - smaller;	107	return lerp (window_size - image_size, window_size, align - 100);
179	else if (align >= -100 && align < 0)	108	else
180	return ((align + 100) * smaller / 100) - image_size;	109	return lerp (-image_size, 0, align + 100);
181	return 0;
182	}	110	}
183		111
184	static inline int	112	static void
185	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	113	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
186	{	114	{
187	int src_pos = 0;	115	if (!strcasecmp (style, "tiled"))
188	dst_pos = pos;
189	dst_size = size;
190	if (pos < 0)
191	{
192	src_pos = -pos;
193	dst_pos = 0;
194	dst_size += pos;
195	}	116	{
196		117	flags = IM_TILE;
197	if (dst_pos + dst_size > target_size)	118	w = h = noScale;
198	dst_size = target_size - dst_pos;	119	x = y = 0;
199	return src_pos;	120	}
		121	else if (!strcasecmp (style, "aspect-stretched"))
		122	{
		123	flags = IM_KEEP_ASPECT;
		124	w = h = windowScale;
		125	x = y = centerAlign;
		126	}
		127	else if (!strcasecmp (style, "stretched"))
		128	{
		129	flags = 0;
		130	w = h = windowScale;
		131	x = y = centerAlign;
		132	}
		133	else if (!strcasecmp (style, "centered"))
		134	{
		135	flags = 0;
		136	w = h = noScale;
		137	x = y = centerAlign;
		138	}
		139	else if (!strcasecmp (style, "root-tiled"))
		140	{
		141	flags = IM_TILE|IM_ROOT_ALIGN;
		142	w = h = noScale;
		143	x = y = 0;
		144	}
200	}	145	}
201		146
202	bool	147	bool
203	rxvt_term::bg_set_geometry (const char *geom, bool update)	148	rxvt_image::set_geometry (const char *geom, bool update)
204	{	149	{
205	bool changed = false;	150	bool changed = false;
206	int geom_flags = 0;	151	int geom_flags = 0;
207	int x = 0, y = 0;	152	int x = h_align;
		153	int y = v_align;
208	unsigned int w = 0, h = 0;	154	unsigned int w = h_scale;
209	unsigned int n;	155	unsigned int h = v_scale;
210	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	156	uint8_t new_flags = 0;
211	const char *ops;
212		157
213	if (geom == NULL)	158	if (geom == NULL)
214	return false;	159	return false;
215		160
216	char str[256];	161	if (geom[0])
217
218	ops = strchr (geom, ':');
219	if (ops == NULL)
220	n = strlen (geom);
221	else
222	n = ops - geom;
223
224	if (n >= sizeof (str))
225	return false;
226
227	memcpy (str, geom, n);
228	str[n] = '\0';
229	rxvt_strtrim (str);
230
231	if (str[0])
232	{	162	{
233	/* we have geometry string - let's handle it prior to applying ops */	163	char **arr = rxvt_strsplit (':', geom);
		164
		165	for (int i = 0; arr[i]; i++)
		166	{
		167	if (!strncasecmp (arr[i], "style=", 6))
		168	{
		169	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		170	geom_flags = WidthValue|HeightValue|XValue|YValue;
		171	}
		172	else if (!strcasecmp (arr[i], "op=tile"))
		173	new_flags |= IM_TILE;
		174	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		175	new_flags |= IM_KEEP_ASPECT;
		176	else if (!strcasecmp (arr[i], "op=root-align"))
		177	new_flags |= IM_ROOT_ALIGN;
		178
		179	// deprecated
		180	else if (!strcasecmp (arr[i], "tile"))
		181	{
		182	new_flags |= IM_TILE;
		183	w = h = noScale;
		184	geom_flags |= WidthValue|HeightValue;
		185	}
		186	else if (!strcasecmp (arr[i], "propscale"))
		187	{
		188	new_flags |= IM_KEEP_ASPECT;
		189	w = h = windowScale;
		190	geom_flags |= WidthValue|HeightValue;
		191	}
		192	else if (!strcasecmp (arr[i], "hscale"))
		193	{
		194	new_flags |= IM_TILE;
		195	w = windowScale;
		196	h = noScale;
		197	geom_flags |= WidthValue|HeightValue;
		198	}
		199	else if (!strcasecmp (arr[i], "vscale"))
		200	{
		201	new_flags |= IM_TILE;
		202	h = windowScale;
		203	w = noScale;
		204	geom_flags |= WidthValue|HeightValue;
		205	}
		206	else if (!strcasecmp (arr[i], "scale"))
		207	{
		208	w = h = windowScale;
		209	geom_flags |= WidthValue|HeightValue;
		210	}
		211	else if (!strcasecmp (arr[i], "auto"))
		212	{
		213	w = h = windowScale;
		214	x = y = centerAlign;
		215	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		216	}
		217	else if (!strcasecmp (arr[i], "root"))
		218	{
		219	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		220	w = h = noScale;
		221	geom_flags |= WidthValue|HeightValue;
		222	}
		223
		224	else
234	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	225	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
235	} /* done parsing geometry string */	226	} /* done parsing ops */
		227
		228	rxvt_free_strsplit (arr);
		229	}
		230
		231	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
236		232
237	if (!update)	233	if (!update)
238	{	234	{
239	if (!(geom_flags & XValue))	235	if (!(geom_flags & XValue))
240	x = y = defaultAlign;	236	x = y = defaultAlign;
…		…
245	w = h = defaultScale;	241	w = h = defaultScale;
246	else if (!(geom_flags & HeightValue))	242	else if (!(geom_flags & HeightValue))
247	h = w;	243	h = w;
248	else if (!(geom_flags & WidthValue))	244	else if (!(geom_flags & WidthValue))
249	w = h;	245	w = h;
250
251	geom_flags |= WidthValue|HeightValue|XValue|YValue;
252	}
253
254	if (ops)
255	{	246	}
256	char **arr = rxvt_strsplit (':', ops + 1);
257		247
258	for (int i = 0; arr[i]; i++)	248	clamp_it (x, -100, 200);
259	{	249	clamp_it (y, -100, 200);
260	if (!strcasecmp (arr[i], "tile"))
261	{
262	new_flags |= BG_TILE;
263	w = h = noScale;
264	geom_flags |= WidthValue|HeightValue;
265	}
266	else if (!strcasecmp (arr[i], "propscale"))
267	{
268	new_flags |= BG_PROP_SCALE;
269	}
270	else if (!strcasecmp (arr[i], "scale"))
271	{
272	if (h == 0) h = windowScale;
273	if (w == 0) w = windowScale;
274		250
275	geom_flags |= WidthValue|HeightValue;	251	if (flags != new_flags
276	}	252	|| h_scale != w
277	else if (!strcasecmp (arr[i], "center"))	253	|| v_scale != h
278	{	254	|| h_align != x
279	w = h = noScale;	255	|| v_align != y)
280	x = y = centerAlign;
281	geom_flags |= WidthValue|HeightValue|XValue|YValue;
282	}
283	else if (!strcasecmp (arr[i], "root"))
284	{
285	new_flags |= BG_TILE|BG_ROOT_ALIGN;
286	w = h = noScale;
287	geom_flags |= WidthValue|HeightValue;
288	}
289	} /* done parsing ops */
290
291	rxvt_free_strsplit (arr);
292	}	256	{
293
294	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
295	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
296	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
297	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
298
299	if (new_flags != bg_flags)
300	{
301	bg_flags = new_flags;	257	flags = new_flags;
		258	h_scale = w;
		259	v_scale = h;
		260	h_align = x;
		261	v_align = y;
302	changed = true;	262	changed = true;
303	}	263	}
304		264
		265	if (is_size_sensitive ())
		266	flags |= IM_IS_SIZE_SENSITIVE;
		267	else
		268	flags &= ~IM_IS_SIZE_SENSITIVE;
		269
305	return changed;	270	return changed;
306	}	271	}
307		272
308	void	273	void
309	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	274	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
310	{	275	{
		276	int image_width = image.img->w;
		277	int image_height = image.img->h;
311	int target_width = szHint.width;	278	int target_width = szHint.width;
312	int target_height = szHint.height;	279	int target_height = szHint.height;
		280	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		281	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
313		282
314	if (bg_flags & BG_PROP_SCALE)	283	w = h_scale * target_width / 100;
		284	h = v_scale * target_height / 100;
		285
		286	if (image.flags & IM_KEEP_ASPECT)
315	{	287	{
316	float scale = (float)target_width / image_width;	288	float scale = (float)w / image_width;
317	min_it (scale, (float)target_height / image_height);	289	min_it (scale, (float)h / image_height);
318	w = image_width * scale + 0.5;	290	w = image_width * scale + 0.5;
319	h = image_height * scale + 0.5;	291	h = image_height * scale + 0.5;
320	}	292	}
321	else
322	{
323	w = h_scale * target_width / 100;
324	h = v_scale * target_height / 100;
325	}
326		293
327	if (!w) w = image_width;	294	if (!w) w = image_width;
328	if (!h) h = image_height;	295	if (!h) h = image_height;
329		296
330	if (bg_flags & BG_ROOT_ALIGN)	297	if (image.flags & IM_ROOT_ALIGN)
331	{	298	{
332	x = -target_x;	299	x = -target_x;
333	y = -target_y;	300	y = -target_y;
334	}	301	}
335	else	302	else
336	{	303	{
337	x = make_align_position (h_align, target_width, w);	304	x = make_align_position (image.h_align, target_width, w);
338	y = make_align_position (v_align, target_height, h);	305	y = make_align_position (image.v_align, target_height, h);
339	}
340
341	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
342	if (!(bg_flags & BG_TILE)
343	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
344	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
345	|| w > target_width || h > target_height)
346	bg_flags |= BG_IS_SIZE_SENSITIVE;
347	}
348
349	# ifdef HAVE_AFTERIMAGE
350	bool
351	rxvt_term::render_image (unsigned long tr_flags)
352	{
353	init_asv ();
354
355	ASImage *background = NULL;
356	ARGB32 background_tint = TINT_LEAVE_SAME;
357
358	# ifdef ENABLE_TRANSPARENCY
359	if (tr_flags)
360	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
361
362	if (tr_flags & BG_NEEDS_TINT)
363	{	306	}
364	ShadingInfo as_shade;	307	}
365	as_shade.shading = shade;
366		308
367	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	309	bool
368	if (bg_flags & BG_TINT_SET)	310	rxvt_term::render_image (rxvt_image &image)
369	tint.get (c);	311	{
370	as_shade.tintColor.red = c.r;
371	as_shade.tintColor.green = c.g;
372	as_shade.tintColor.blue = c.b;
373
374	background_tint = shading2tint32 (&as_shade);
375	}
376
377	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
378	{
379	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
380	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
381	100, ASIMAGE_QUALITY_DEFAULT);
382	if (tmp)
383	{
384	destroy_asimage (&background);
385	background = tmp;
386	}
387	}
388	# endif
389
390	ASImage *result = 0;
391
392	int target_width = szHint.width;	312	int target_width = szHint.width;
393	int target_height = szHint.height;	313	int target_height = szHint.height;
394	int new_pmap_width = target_width;
395	int new_pmap_height = target_height;
396		314
397	int x = 0;	315	int x = 0;
398	int y = 0;	316	int y = 0;
399	int w = 0;	317	int w = 0;
400	int h = 0;	318	int h = 0;
401		319
402	if (original_asim)	320	get_image_geometry (image, w, h, x, y);
403	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
404		321
405	if (!original_asim
406	|| (!(bg_flags & BG_ROOT_ALIGN)
407	&& (x >= target_width
408	|| y >= target_height
409	|| (x + w <= 0)
410	|| (y + h <= 0))))
411	{
412	if (background)
413	{
414	new_pmap_width = background->width;
415	new_pmap_height = background->height;
416	result = background;
417
418	if (background_tint != TINT_LEAVE_SAME)
419	{
420	ASImage *tmp = tile_asimage (asv, background, 0, 0,
421	target_width, target_height, background_tint,
422	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
423	if (tmp)
424	result = tmp;
425	}
426	}
427	else
428	new_pmap_width = new_pmap_height = 0;
429	}
430	else
431	{
432	result = original_asim;
433
434	if ((w != original_asim->width)
435	|| (h != original_asim->height))
436	{
437	result = scale_asimage (asv, original_asim,
438	w, h,
439	background ? ASA_ASImage : ASA_XImage,
440	100, ASIMAGE_QUALITY_DEFAULT);
441	}
442
443	if (background == NULL)
444	{
445	if (bg_flags & BG_TILE)
446	{
447	/* if tiling - pixmap has to be sized exactly as the image,
448	but there is no need to make it bigger than the window! */
449	new_pmap_width = min (result->width, target_width);
450	new_pmap_height = min (result->height, target_height);
451
452	/* we also need to tile our image in both directions */
453	ASImage *tmp = tile_asimage (asv, result,
454	(int)result->width - x,
455	(int)result->height - y,
456	new_pmap_width,
457	new_pmap_height,
458	TINT_LEAVE_SAME, ASA_XImage,
459	100, ASIMAGE_QUALITY_DEFAULT);
460	if (tmp)
461	{
462	if (result != original_asim)
463	destroy_asimage (&result);
464
465	result = tmp;
466	}
467	}
468	}
469	else
470	{
471	/* if blending background and image - pixmap has to be sized same as target window */
472	ASImageLayer *layers = create_image_layers (2);
473
474	layers[0].im = background;
475	layers[0].clip_width = target_width;
476	layers[0].clip_height = target_height;
477	layers[0].tint = background_tint;
478	layers[1].im = result;
479
480	if (bg_flags & BG_TILE)
481	{
482	/* tile horizontally */
483	while (x > 0) x -= (int)result->width;
484	layers[1].dst_x = x;
485	layers[1].clip_width = result->width+target_width;
486	}
487	else
488	{
489	/* clip horizontally */
490	layers[1].dst_x = x;
491	layers[1].clip_width = result->width;
492	}
493
494	if (bg_flags & BG_TILE)
495	{
496	while (y > 0) y -= (int)result->height;
497	layers[1].dst_y = y;
498	layers[1].clip_height = result->height + target_height;
499	}
500	else
501	{
502	layers[1].dst_y = y;
503	layers[1].clip_height = result->height;
504	}
505
506	if (rs[Rs_blendtype])
507	{
508	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
509	if (layers[1].merge_scanlines == NULL)
510	layers[1].merge_scanlines = alphablend_scanlines;
511	}
512
513	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
514	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
515
516	if (tmp)
517	{
518	if (result != original_asim)
519	destroy_asimage (&result);
520
521	result = tmp;
522	}
523
524	free (layers);
525	}
526	}
527
528	bool ret = false;
529
530	if (result)
531	{
532	XGCValues gcv;
533	GC gc;
534
535	/* create Pixmap */
536	if (bg_pixmap == None
537	|| bg_pmap_width != new_pmap_width
538	|| bg_pmap_height != new_pmap_height)
539	{
540	if (bg_pixmap)
541	XFreePixmap (dpy, bg_pixmap);
542	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
543	bg_pmap_width = new_pmap_width;
544	bg_pmap_height = new_pmap_height;
545	}
546	/* fill with background color (if result's not completely overlapping it) */
547	gcv.foreground = pix_colors[Color_bg];
548	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
549
550	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
551	int dst_width = result->width, dst_height = result->height;
552	if (background == NULL)
553	{
554	if (!(bg_flags & BG_TILE))
555	{
556	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
557	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
558	}
559
560	if (dst_x > 0 || dst_y > 0
561	|| dst_x + dst_width < new_pmap_width
562	|| dst_y + dst_height < new_pmap_height)
563	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
564	}
565
566	/* put result on pixmap */
567	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
568	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
569
570	if (result != background && result != original_asim)
571	destroy_asimage (&result);
572
573	XFreeGC (dpy, gc);
574
575	ret = true;
576	}
577
578	if (background)
579	destroy_asimage (&background);
580
581	return ret;
582	}
583	# endif /* HAVE_AFTERIMAGE */
584
585	# ifdef HAVE_PIXBUF
586	bool
587	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
588	int src_x, int src_y, int dst_x, int dst_y,
589	unsigned int width, unsigned int height)
590	{
591	XImage *ximage;
592	char *data, *line;
593	int bytes_per_pixel;
594	int width_r, width_g, width_b;
595	int sh_r, sh_g, sh_b;
596	int rowstride;
597	int channels;
598	unsigned char *row;
599
600	if (visual->c_class != TrueColor)
601	return false;
602
603	if (depth == 24 || depth == 32)
604	bytes_per_pixel = 4;
605	else if (depth == 15 || depth == 16)
606	bytes_per_pixel = 2;
607	else
608	return false;
609
610	width_r = ecb_popcount32 (visual->red_mask);
611	width_g = ecb_popcount32 (visual->green_mask);
612	width_b = ecb_popcount32 (visual->blue_mask);
613
614	if (width_r > 8 || width_g > 8 || width_b > 8)
615	return false;
616
617	sh_r = ecb_ctz32 (visual->red_mask);
618	sh_g = ecb_ctz32 (visual->green_mask);
619	sh_b = ecb_ctz32 (visual->blue_mask);
620
621	if (width > INT_MAX / height / bytes_per_pixel)
622	return false;
623
624	data = (char *)malloc (width * height * bytes_per_pixel);
625	if (!data)
626	return false;
627
628	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
629	width, height, bytes_per_pixel * 8, 0);
630	if (!ximage)
631	{
632	free (data);
633	return false;
634	}
635
636	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
637
638	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
639	channels = gdk_pixbuf_get_n_channels (pixbuf);
640	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
641	line = data;
642
643	for (int y = 0; y < height; y++)
644	{
645	for (int x = 0; x < width; x++)
646	{
647	unsigned char *pixel = row + x * channels;
648	uint32_t value;
649
650	value = ((pixel[0] >> (8 - width_r)) << sh_r)
651	| ((pixel[1] >> (8 - width_g)) << sh_g)
652	| ((pixel[2] >> (8 - width_b)) << sh_b);
653
654	if (bytes_per_pixel == 4)
655	((uint32_t *)line)[x] = value;
656	else
657	((uint16_t *)line)[x] = value;
658	}
659
660	row += rowstride;
661	line += ximage->bytes_per_line;
662	}
663
664	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
665	XDestroyImage (ximage);
666	return true;
667	}
668
669	bool
670	rxvt_term::render_image (unsigned long tr_flags)
671	{
672	if (!pixbuf)
673	return false;
674
675	if (tr_flags
676	&& !(bg_flags & BG_HAS_RENDER))
677	return false;
678
679	GdkPixbuf *result;
680
681	int image_width = gdk_pixbuf_get_width (pixbuf);
682	int image_height = gdk_pixbuf_get_height (pixbuf);
683
684	int target_width = szHint.width;
685	int target_height = szHint.height;
686	int new_pmap_width = target_width;
687	int new_pmap_height = target_height;
688
689	int x = 0;
690	int y = 0;
691	int w = 0;
692	int h = 0;
693
694	get_image_geometry (image_width, image_height, w, h, x, y);
695
696	if (!(bg_flags & BG_ROOT_ALIGN)	322	if (!(image.flags & IM_ROOT_ALIGN)
697	&& (x >= target_width	323	&& (x >= target_width
698	|| y >= target_height	324	|| y >= target_height
699	|| (x + w <= 0)	325	|| x + w <= 0
700	|| (y + h <= 0)))	326	|| y + h <= 0))
701	return false;	327	return false;
702		328
703	result = pixbuf;	329	rxvt_img *img = image.img->scale (w, h);
704		330
705	if ((w != image_width)	331	if (image.flags & IM_TILE)
706	|| (h != image_height))	332	img->repeat_mode (RepeatNormal);
707	{
708	result = gdk_pixbuf_scale_simple (pixbuf,
709	w, h,
710	GDK_INTERP_BILINEAR);
711	}
712
713	if (!result)
714	return false;
715
716	bool ret = false;
717
718	XGCValues gcv;
719	GC gc;
720	Pixmap root_pmap;
721
722	image_width = gdk_pixbuf_get_width (result);
723	image_height = gdk_pixbuf_get_height (result);
724
725	if (tr_flags)
726	{
727	root_pmap = bg_pixmap;
728	bg_pixmap = None;
729	}
730	else	333	else
731	{	334	img->repeat_mode (RepeatNone);
		335	img->sub_rect (-x, -y, target_width, target_height)->replace (img);
		336
732	if (bg_flags & BG_TILE)	337	if (bg_flags & BG_IS_VALID)
733	{
734	new_pmap_width = min (image_width, target_width);
735	new_pmap_height = min (image_height, target_height);
736	}
737	}	338	{
738		339	double factor = image.alpha * 1. / 0xffff;
739	if (bg_pixmap == None	340	bg_img->blend (img, factor)->replace (img);
740	|| bg_pmap_width != new_pmap_width
741	|| bg_pmap_height != new_pmap_height)
742	{	341	}
743	if (bg_pixmap)
744	XFreePixmap (dpy, bg_pixmap);
745	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
746	bg_pmap_width = new_pmap_width;
747	bg_pmap_height = new_pmap_height;
748	}
749		342
750	gcv.foreground = pix_colors[Color_bg];
751	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
752
753	if (gc)
754	{
755	if (bg_flags & BG_TILE)
756	{
757	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
758	pixbuf_to_pixmap (result, tile, gc,
759	0, 0,
760	0, 0,
761	image_width, image_height);
762
763	gcv.tile = tile;
764	gcv.fill_style = FillTiled;
765	gcv.ts_x_origin = x;
766	gcv.ts_y_origin = y;
767	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
768
769	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
770	XFreePixmap (dpy, tile);
771	}
772	else
773	{
774	int src_x, src_y, dst_x, dst_y;
775	int dst_width, dst_height;
776
777	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
778	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
779
780	if (dst_x > 0 || dst_y > 0
781	|| dst_x + dst_width < new_pmap_width
782	|| dst_y + dst_height < new_pmap_height)
783	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
784
785	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
786	pixbuf_to_pixmap (result, bg_pixmap, gc,
787	src_x, src_y,
788	dst_x, dst_y,
789	dst_width, dst_height);
790	}
791
792	#if XRENDER
793	if (tr_flags)
794	{
795	XRenderPictureAttributes pa;
796
797	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	343	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
798	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	344	img->convert_format (format, pix_colors [Color_bg])->replace (img);
799		345
800	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	346	delete bg_img;
801	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	347	bg_img = img;
802		348
803	pa.repeat = True;
804	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
805	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
806	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
807	XFreePixmap (dpy, mask_pmap);
808
809	XRenderColor mask_c;
810
811	mask_c.alpha = 0x8000;
812	mask_c.red = 0;
813	mask_c.green = 0;
814	mask_c.blue = 0;
815	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
816	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
817
818	XRenderFreePicture (dpy, src);
819	XRenderFreePicture (dpy, dst);
820	XRenderFreePicture (dpy, mask);
821	}
822	#endif
823
824	XFreeGC (dpy, gc);
825
826	ret = true;
827	}
828
829	if (result != pixbuf)
830	g_object_unref (result);
831
832	if (tr_flags)
833	XFreePixmap (dpy, root_pmap);
834
835	return ret;	349	return true;
836	}	350	}
837	# endif /* HAVE_PIXBUF */
838		351
		352	rxvt_image::rxvt_image ()
		353	{
		354	alpha = 0xffff;
		355	flags = 0;
		356	h_scale =
		357	v_scale = defaultScale;
		358	h_align =
		359	v_align = defaultAlign;
		360
		361	img = 0;
		362	}
		363
839	bool	364	bool
840	rxvt_term::bg_set_file (const char *file)	365	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
841	{	366	{
842	if (!file || !*file)	367	if (!file || !*file)
843	return false;	368	return false;
844		369
845	if (const char *p = strchr (file, ';'))	370	const char *p = strchr (file, ';');
		371
		372	if (p)
846	{	373	{
847	size_t len = p - file;	374	size_t len = p - file;
848	char *f = rxvt_temp_buf<char> (len + 1);	375	char *f = rxvt_temp_buf<char> (len + 1);
849	memcpy (f, file, len);	376	memcpy (f, file, len);
850	f[len] = '\0';	377	f[len] = '\0';
851	file = f;	378	file = f;
852	}	379	}
853		380
854	# ifdef HAVE_AFTERIMAGE	381	bool ret = set_file (s, file);
855	if (!asimman)	382	alpha = 0x8000;
856	asimman = create_generic_imageman (rs[Rs_path]);	383	if (ret)
857	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	384	set_geometry (p ? p + 1 : "");
858	if (image)
859	{
860	if (original_asim)
861	safe_asimage_destroy (original_asim);
862	original_asim = image;
863	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
864	return true;
865	}
866	# endif
867
868	# ifdef HAVE_PIXBUF
869	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
870	if (image)
871	{
872	if (pixbuf)
873	g_object_unref (pixbuf);
874	pixbuf = image;
875	bg_flags |= BG_IS_FROM_FILE;
876	return true;
877	}
878	# endif
879
880	return false;	385	return ret;
		386	}
		387
		388	bool
		389	rxvt_image::set_file (rxvt_screen *s, const char *file)
		390	{
		391	delete img;
		392	img = rxvt_img::new_from_file (s, file);
		393	return img != 0;
881	}	394	}
882		395
883	# endif /* BG_IMAGE_FROM_FILE */	396	# endif /* BG_IMAGE_FROM_FILE */
884		397
885	# ifdef ENABLE_TRANSPARENCY
886	bool	398	bool
887	rxvt_term::bg_set_transparent ()	399	image_effects::set_blur (const char *geom)
888	{
889	if (!(bg_flags & BG_IS_TRANSPARENT))
890	{
891	bg_flags |= BG_IS_TRANSPARENT;
892	return true;
893	}
894
895	return false;
896	}
897
898	bool
899	rxvt_term::bg_set_blur (const char *geom)
900	{	400	{
901	bool changed = false;	401	bool changed = false;
902	unsigned int hr, vr;	402	unsigned int hr, vr;
903	int junk;	403	int junk;
904	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	404	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
921	{	421	{
922	changed = true;	422	changed = true;
923	v_blurRadius = vr;	423	v_blurRadius = vr;
924	}	424	}
925		425
926	if (v_blurRadius == 0 && h_blurRadius == 0)
927	bg_flags &= ~BG_NEEDS_BLUR;
928	else
929	bg_flags |= BG_NEEDS_BLUR;
930
931	return changed;	426	return changed;
932	}	427	}
933		428
934	void
935	rxvt_term::set_tint_shade_flags ()
936	{
937	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
938	bool has_shade = shade != 100;
939
940	bg_flags &= ~BG_TINT_FLAGS;
941
942	if (bg_flags & BG_TINT_SET)
943	{
944	tint.get (c);
945	if (!has_shade
946	&& (c.r <= 0x00ff || c.r >= 0xff00)
947	&& (c.g <= 0x00ff || c.g >= 0xff00)
948	&& (c.b <= 0x00ff || c.b >= 0xff00))
949	bg_flags |= BG_TINT_BITAND;
950	}
951
952	if (has_shade || (bg_flags & BG_TINT_SET))
953	bg_flags |= BG_NEEDS_TINT;
954	}
955
956	bool	429	bool
957	rxvt_term::bg_set_tint (rxvt_color &new_tint)	430	image_effects::set_tint (const rxvt_color &new_tint)
958	{	431	{
959	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	432	if (!tint_set || tint != new_tint)
960	{	433	{
961	tint = new_tint;	434	tint = new_tint;
962	bg_flags |= BG_TINT_SET;	435	tint_set = true;
963	set_tint_shade_flags ();	436
964	return true;	437	return true;
965	}	438	}
966		439
967	return false;	440	return false;
968	}	441	}
969		442
970	bool	443	bool
971	rxvt_term::bg_set_shade (const char *shade_str)	444	image_effects::set_shade (const char *shade_str)
972	{	445	{
973	int new_shade = (shade_str) ? atoi (shade_str) : 100;	446	int new_shade = atoi (shade_str);
974		447
975	clamp_it (new_shade, -100, 200);	448	clamp_it (new_shade, -100, 200);
976	if (new_shade < 0)	449	if (new_shade < 0)
977	new_shade = 200 - (100 + new_shade);	450	new_shade = 200 - (100 + new_shade);
978		451
979	if (new_shade != shade)	452	if (new_shade != shade)
980	{	453	{
981	shade = new_shade;	454	shade = new_shade;
982	set_tint_shade_flags ();
983	return true;	455	return true;
984	}	456	}
985		457
986	return false;	458	return false;
987	}	459	}
988		460
989	#if XRENDER	461	# if ENABLE_TRANSPARENCY
990	static void
991	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
992	{
993	double sigma = radius / 2.0;
994	double scale = sqrt (2.0 * M_PI) * sigma;
995	double sum = 0.0;
996
997	for (int i = 0; i < width; i++)
998	{
999	double x = i - width / 2;
1000	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1001	sum += kernel[i];
1002	}
1003
1004	params[0] = XDoubleToFixed (width);
1005	params[1] = XDoubleToFixed (1);
1006
1007	for (int i = 0; i < width; i++)
1008	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1009	}
1010	#endif
1011
1012	bool
1013	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1014	{
1015	bool ret = false;
1016	#if XRENDER
1017	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1018	double *kernel = (double *)malloc (size * sizeof (double));
1019	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1020
1021	XRenderPictureAttributes pa;
1022	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1023
1024	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1025	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1026
1027	if (kernel && params)
1028	{
1029	if (h_blurRadius)
1030	{
1031	size = h_blurRadius * 2 + 1;
1032	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1033
1034	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1035	XRenderComposite (dpy,
1036	PictOpSrc,
1037	src,
1038	None,
1039	dst,
1040	0, 0,
1041	0, 0,
1042	0, 0,
1043	width, height);
1044	}
1045
1046	if (v_blurRadius)
1047	{
1048	size = v_blurRadius * 2 + 1;
1049	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1050	::swap (params[0], params[1]);
1051
1052	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1053	XRenderComposite (dpy,
1054	PictOpSrc,
1055	src,
1056	None,
1057	dst,
1058	0, 0,
1059	0, 0,
1060	0, 0,
1061	width, height);
1062	}
1063
1064	ret = true;
1065	}
1066
1067	free (kernel);
1068	free (params);
1069	XRenderFreePicture (dpy, src);
1070	XRenderFreePicture (dpy, dst);
1071	#endif
1072	return ret;
1073	}
1074
1075	bool
1076	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1077	{
1078	bool ret = false;
1079
1080	if (bg_flags & BG_TINT_BITAND)
1081	{
1082	XGCValues gcv;
1083	GC gc;
1084
1085	/* In this case we can tint image server-side getting significant
1086	* performance improvements, as we eliminate XImage transfer
1087	*/
1088	gcv.foreground = Pixel (tint);
1089	gcv.function = GXand;
1090	gcv.fill_style = FillSolid;
1091	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1092	if (gc)
1093	{
1094	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1095	ret = true;
1096	XFreeGC (dpy, gc);
1097	}
1098	}
1099	else
1100	{
1101	# if XRENDER
1102	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1103
1104	if (bg_flags & BG_TINT_SET)
1105	tint.get (c);
1106
1107	if (shade <= 100)
1108	{
1109	c.r = c.r * shade / 100;
1110	c.g = c.g * shade / 100;
1111	c.b = c.b * shade / 100;
1112	}
1113	else
1114	{
1115	c.r = c.r * (200 - shade) / 100;
1116	c.g = c.g * (200 - shade) / 100;
1117	c.b = c.b * (200 - shade) / 100;
1118	}
1119
1120	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1121	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1122	XRenderPictureAttributes pa;
1123
1124	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1125
1126	pa.repeat = True;
1127
1128	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1129	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1130	XFreePixmap (dpy, overlay_pmap);
1131
1132	pa.component_alpha = True;
1133	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1134	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1135	XFreePixmap (dpy, mask_pmap);
1136
1137	XRenderColor mask_c;
1138
1139	mask_c.alpha = 0xffff;
1140	mask_c.red =
1141	mask_c.green =
1142	mask_c.blue = 0;
1143	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1144
1145	mask_c.alpha = 0;
1146	mask_c.red = 0xffff - c.r;
1147	mask_c.green = 0xffff - c.g;
1148	mask_c.blue = 0xffff - c.b;
1149	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1150	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1151
1152	if (shade > 100)
1153	{
1154	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1155	mask_c.alpha = 0;
1156	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1157
1158	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1159	}
1160
1161	ret = true;
1162
1163	XRenderFreePicture (dpy, mask_pic);
1164	XRenderFreePicture (dpy, overlay_pic);
1165	XRenderFreePicture (dpy, back_pic);
1166	# endif
1167	}
1168
1169	return ret;
1170	}
1171
1172	/*	462	/*
1173	* Builds a pixmap of the same size as the terminal window that contains	463	* Builds a pixmap of the same size as the terminal window that contains
1174	* the tiled portion of the root pixmap that is supposed to be covered by	464	* the tiled portion of the root pixmap that is supposed to be covered by
1175	* our window.	465	* our window.
1176	*/	466	*/
1177	unsigned long	467	bool
1178	rxvt_term::make_transparency_pixmap ()	468	rxvt_term::render_root_image ()
1179	{	469	{
1180	unsigned long result = 0;
1181
1182	/* root dimensions may change from call to call - but Display structure should	470	/* root dimensions may change from call to call - but Display structure should
1183	* be always up-to-date, so let's use it :	471	* be always up-to-date, so let's use it :
1184	*/	472	*/
1185	int screen = display->screen;	473	int screen = display->screen;
1186	int root_depth = DefaultDepth (dpy, screen);
1187	int root_width = DisplayWidth (dpy, screen);	474	int root_width = DisplayWidth (dpy, screen);
1188	int root_height = DisplayHeight (dpy, screen);	475	int root_height = DisplayHeight (dpy, screen);
1189	unsigned int root_pmap_width, root_pmap_height;
1190	int window_width = szHint.width;	476	int window_width = szHint.width;
1191	int window_height = szHint.height;	477	int window_height = szHint.height;
1192	int sx, sy;	478	int sx, sy;
1193	XGCValues gcv;
1194	GC gc;
1195		479
1196	sx = target_x;	480	sx = target_x;
1197	sy = target_y;	481	sy = target_y;
		482
		483	if (!root_img)
		484	return false;
1198		485
1199	/* check if we are outside of the visible part of the virtual screen : */	486	/* check if we are outside of the visible part of the virtual screen : */
1200	if (sx + window_width <= 0 || sy + window_height <= 0	487	if (sx + window_width <= 0 || sy + window_height <= 0
1201	|| sx >= root_width || sy >= root_height)	488	|| sx >= root_width || sy >= root_height)
1202	return 0;	489	return 0;
1203		490
1204	// validate root pixmap and get its size	491	while (sx < 0) sx += root_img->w;
1205	if (root_pixmap != None)	492	while (sy < 0) sy += root_img->h;
1206	{
1207	Window wdummy;
1208	int idummy;
1209	unsigned int udummy;
1210		493
1211	allowedxerror = -1;	494	rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
1212		495
1213	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	496	if (root_effects.need_blur ())
1214	root_pixmap = None;	497	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1215		498
1216	allowedxerror = 0;	499	if (root_effects.need_tint ())
1217	}	500	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1218		501
1219	Pixmap recoded_root_pmap = root_pixmap;
1220
1221	if (root_pixmap != None && root_depth != depth)
1222	{
1223	#if XRENDER
1224	if (bg_flags & BG_HAS_RENDER)
1225	{
1226	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1227
1228	XRenderPictureAttributes pa;
1229
1230	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1231	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1232
1233	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	502	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1234	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	503	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1235		504
1236	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	505	delete bg_img;
		506	bg_img = img;
1237		507
1238	XRenderFreePicture (dpy, src);
1239	XRenderFreePicture (dpy, dst);
1240	}
1241	else
1242	#endif
1243	recoded_root_pmap = None;
1244	}
1245
1246	if (recoded_root_pmap == None)
1247	return 0;
1248
1249	if (bg_pixmap == None
1250	|| bg_pmap_width != window_width
1251	|| bg_pmap_height != window_height)
1252	{
1253	if (bg_pixmap)
1254	XFreePixmap (dpy, bg_pixmap);
1255	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1256	bg_pmap_width = window_width;
1257	bg_pmap_height = window_height;
1258	}
1259
1260	/* straightforward pixmap copy */
1261	while (sx < 0) sx += root_width;
1262	while (sy < 0) sy += root_height;
1263
1264	gcv.tile = recoded_root_pmap;
1265	gcv.fill_style = FillTiled;
1266	gcv.ts_x_origin = -sx;
1267	gcv.ts_y_origin = -sy;
1268	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1269
1270	if (gc)
1271	{
1272	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1273	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1274	XFreeGC (dpy, gc);
1275
1276	if (!(bg_flags & BG_CLIENT_RENDER))
1277	{
1278	if ((bg_flags & BG_NEEDS_BLUR)
1279	&& (bg_flags & BG_HAS_RENDER_CONV))
1280	{
1281	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1282	result &= ~BG_NEEDS_BLUR;
1283	}
1284	if ((bg_flags & BG_NEEDS_TINT)
1285	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1286	{
1287	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1288	result &= ~BG_NEEDS_TINT;
1289	}
1290	} /* server side rendering completed */
1291	}
1292
1293	if (recoded_root_pmap != root_pixmap)
1294	XFreePixmap (dpy, recoded_root_pmap);
1295
1296	return result;	508	return true;
1297	}	509	}
1298		510
1299	void	511	void
1300	rxvt_term::bg_set_root_pixmap ()	512	rxvt_term::bg_set_root_pixmap ()
1301	{	513	{
1302	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	514	delete root_img;
1303	if (new_root_pixmap == None)	515	root_img = rxvt_img::new_from_root (this);
1304	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1305
1306	root_pixmap = new_root_pixmap;
1307	}	516	}
1308	# endif /* ENABLE_TRANSPARENCY */	517	# endif /* ENABLE_TRANSPARENCY */
1309		518
1310	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	519	void
1311	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1312	# endif
1313
1314	bool
1315	rxvt_term::bg_render ()	520	rxvt_term::bg_render ()
1316	{	521	{
1317	unsigned long tr_flags = 0;	522	if (bg_flags & BG_INHIBIT_RENDER)
		523	return;
1318		524
1319	bg_invalidate ();	525	bg_invalidate ();
1320	# ifdef ENABLE_TRANSPARENCY	526	# if ENABLE_TRANSPARENCY
1321	if (bg_flags & BG_IS_TRANSPARENT)	527	if (bg_flags & BG_IS_TRANSPARENT)
1322	{	528	{
1323	/* we need to re-generate transparency pixmap in that case ! */	529	/* we need to re-generate transparency pixmap in that case ! */
1324	tr_flags = make_transparency_pixmap ();	530	if (render_root_image ())
1325	if (tr_flags == 0)
1326	return false;
1327	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1328	bg_flags |= BG_IS_VALID;	531	bg_flags |= BG_IS_VALID;
1329	}	532	}
1330	# endif	533	# endif
1331		534
1332	# ifdef BG_IMAGE_FROM_FILE	535	# if BG_IMAGE_FROM_FILE
1333	if ((bg_flags & BG_IS_FROM_FILE)	536	if (fimage.img)
1334	|| (tr_flags & BG_EFFECTS_FLAGS))
1335	{	537	{
1336	if (render_image (tr_flags))	538	if (render_image (fimage))
1337	bg_flags |= BG_IS_VALID;	539	bg_flags |= BG_IS_VALID;
1338	}	540	}
1339	# endif	541	# endif
1340		542
1341	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1342	XImage *result = NULL;
1343
1344	if (tr_flags && !(bg_flags & BG_IS_VALID))
1345	{
1346	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1347	}
1348
1349	if (result)
1350	{
1351	/* our own client-side tinting */
1352	if (tr_flags & BG_NEEDS_TINT)
1353	{
1354	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1355	if (bg_flags & BG_TINT_SET)
1356	tint.get (c);
1357	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1358	}
1359
1360	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1361
1362	if (gc)
1363	{
1364	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1365
1366	XFreeGC (dpy, gc);
1367	bg_flags |= BG_IS_VALID;
1368	}
1369
1370	XDestroyImage (result);
1371	}
1372	# endif
1373
1374	if (!(bg_flags & BG_IS_VALID))	543	if (!(bg_flags & BG_IS_VALID))
1375	{	544	{
1376	if (bg_pixmap != None)	545	delete bg_img;
1377	{	546	bg_img = 0;
1378	XFreePixmap (dpy, bg_pixmap);
1379	bg_pixmap = None;
1380	}
1381	}	547	}
1382		548
1383	scr_recolour (false);	549	scr_recolour (false);
1384	bg_flags |= BG_NEEDS_REFRESH;	550	bg_flags |= BG_NEEDS_REFRESH;
1385		551
1386	bg_valid_since = ev::now ();	552	bg_valid_since = ev::now ();
1387
1388	return true;
1389	}	553	}
1390		554
1391	void	555	void
1392	rxvt_term::bg_init ()	556	rxvt_term::bg_init ()
1393	{	557	{
1394	#ifdef ENABLE_TRANSPARENCY	558	#if BG_IMAGE_FROM_FILE
1395	shade = 100;	559	if (rs[Rs_backgroundPixmap])
		560	{
		561	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
		562	&& !bg_window_position_sensitive ())
		563	update_background ();
		564	}
1396	#endif	565	#endif
		566	}
1397		567
1398	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	568	void
1399	#if XRENDER	569	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1400	int major, minor;	570	{
1401	if (XRenderQueryVersion (dpy, &major, &minor))	571	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1402	bg_flags |= BG_HAS_RENDER;
1403	XFilters *filters = XRenderQueryFilters (dpy, vt);
1404	if (filters)
1405	{
1406	for (int i = 0; i < filters->nfilter; i++)
1407	if (!strcmp (filters->filter[i], FilterConvolution))
1408	bg_flags |= BG_HAS_RENDER_CONV;
1409		572
1410	XFree (filters);	573	if (tint_set)
		574	tint.get (c);
		575
		576	if (shade > 100)
1411	}	577	{
1412	#endif	578	c.r = c.r * (200 - shade) / 100;
		579	c.g = c.g * (200 - shade) / 100;
		580	c.b = c.b * (200 - shade) / 100;
		581	}
		582	else
		583	{
		584	c.r = c.r * shade / 100;
		585	c.g = c.g * shade / 100;
		586	c.b = c.b * shade / 100;
		587	}
		588
		589	img->contrast (c.r, c.g, c.b, c.a);
		590
		591	if (shade > 100)
		592	{
		593	c.a = 0xffff;
		594	c.r =
		595	c.g =
		596	c.b = 0xffff * (shade - 100) / 100;
		597	img->brightness (c.r, c.g, c.b, c.a);
		598	}
1413	}	599	}
1414		600
1415	#endif /* HAVE_BG_PIXMAP */	601	#endif /* HAVE_BG_PIXMAP */
1416
1417	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1418	/* taken from aterm-0.4.2 */
1419
1420	static void
1421	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1422	{
1423	int sh_r, sh_g, sh_b;
1424	uint32_t mask_r, mask_g, mask_b;
1425	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1426	rgba low;
1427	rgba high;
1428	int i;
1429	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1430
1431	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1432
1433	/* for convenience */
1434	mask_r = visual->red_mask;
1435	mask_g = visual->green_mask;
1436	mask_b = visual->blue_mask;
1437
1438	/* boring lookup table pre-initialization */
1439	switch (ximage->depth)
1440	{
1441	case 15:
1442	if ((mask_r != 0x7c00) ||
1443	(mask_g != 0x03e0) ||
1444	(mask_b != 0x001f))
1445	return;
1446	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1447	lookup_r = lookup;
1448	lookup_g = lookup+32;
1449	lookup_b = lookup+32+32;
1450	sh_r = 10;
1451	sh_g = 5;
1452	sh_b = 0;
1453	break;
1454	case 16:
1455	if ((mask_r != 0xf800) ||
1456	(mask_g != 0x07e0) ||
1457	(mask_b != 0x001f))
1458	return;
1459	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1460	lookup_r = lookup;
1461	lookup_g = lookup+32;
1462	lookup_b = lookup+32+64;
1463	sh_r = 11;
1464	sh_g = 5;
1465	sh_b = 0;
1466	break;
1467	case 24:
1468	if ((mask_r != 0xff0000) ||
1469	(mask_g != 0x00ff00) ||
1470	(mask_b != 0x0000ff))
1471	return;
1472	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1473	lookup_r = lookup;
1474	lookup_g = lookup+256;
1475	lookup_b = lookup+256+256;
1476	sh_r = 16;
1477	sh_g = 8;
1478	sh_b = 0;
1479	break;
1480	case 32:
1481	if ((mask_r != 0xff0000) ||
1482	(mask_g != 0x00ff00) ||
1483	(mask_b != 0x0000ff))
1484	return;
1485	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1486	lookup_r = lookup;
1487	lookup_g = lookup+256;
1488	lookup_b = lookup+256+256;
1489	sh_r = 16;
1490	sh_g = 8;
1491	sh_b = 0;
1492	break;
1493	default:
1494	return; /* we do not support this color depth */
1495	}
1496
1497	/* prepare limits for color transformation (each channel is handled separately) */
1498	if (shade > 100)
1499	{
1500	shade = 200 - shade;
1501
1502	high.r = c.r * shade / 100;
1503	high.g = c.g * shade / 100;
1504	high.b = c.b * shade / 100;
1505
1506	low.r = 65535 * (100 - shade) / 100;
1507	low.g = 65535 * (100 - shade) / 100;
1508	low.b = 65535 * (100 - shade) / 100;
1509	}
1510	else
1511	{
1512	high.r = c.r * shade / 100;
1513	high.g = c.g * shade / 100;
1514	high.b = c.b * shade / 100;
1515
1516	low.r = low.g = low.b = 0;
1517	}
1518
1519	/* fill our lookup tables */
1520	for (i = 0; i <= mask_r>>sh_r; i++)
1521	{
1522	uint32_t tmp;
1523	tmp = i * high.r;
1524	tmp += (mask_r>>sh_r) * low.r;
1525	lookup_r[i] = (tmp/65535)<<sh_r;
1526	}
1527	for (i = 0; i <= mask_g>>sh_g; i++)
1528	{
1529	uint32_t tmp;
1530	tmp = i * high.g;
1531	tmp += (mask_g>>sh_g) * low.g;
1532	lookup_g[i] = (tmp/65535)<<sh_g;
1533	}
1534	for (i = 0; i <= mask_b>>sh_b; i++)
1535	{
1536	uint32_t tmp;
1537	tmp = i * high.b;
1538	tmp += (mask_b>>sh_b) * low.b;
1539	lookup_b[i] = (tmp/65535)<<sh_b;
1540	}
1541
1542	/* apply table to input image (replacing colors by newly calculated ones) */
1543	if (ximage->bits_per_pixel == 32
1544	&& (ximage->depth == 24 || ximage->depth == 32)
1545	&& ximage->byte_order == host_byte_order)
1546	{
1547	uint32_t *p1, *pf, *p, *pl;
1548	p1 = (uint32_t *) ximage->data;
1549	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1550
1551	while (p1 < pf)
1552	{
1553	p = p1;
1554	pl = p1 + ximage->width;
1555	for (; p < pl; p++)
1556	{
1557	*p = lookup_r[(*p & 0xff0000) >> 16] |
1558	lookup_g[(*p & 0x00ff00) >> 8] |
1559	lookup_b[(*p & 0x0000ff)] |
1560	(*p & 0xff000000);
1561	}
1562	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1563	}
1564	}
1565	else
1566	{
1567	for (int y = 0; y < ximage->height; y++)
1568	for (int x = 0; x < ximage->width; x++)
1569	{
1570	unsigned long pixel = XGetPixel (ximage, x, y);
1571	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1572	lookup_g[(pixel & mask_g) >> sh_g] |
1573	lookup_b[(pixel & mask_b) >> sh_b];
1574	XPutPixel (ximage, x, y, pixel);
1575	}
1576	}
1577
1578	free (lookup);
1579	}
1580	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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