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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.162 by sf-exg, Thu Aug 11 12:27:26 2011 UTC vs.
Revision 1.219 by sf-exg, Thu May 24 16:17:33 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>	25	#include <math.h>
26	#include "../config.h" /* NECESSARY */	26	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	27	#include "rxvt.h" /* NECESSARY */
28		28
29	#if XRENDER	29	#if XRENDER
30	# include <X11/extensions/Xrender.h>	30	# include <X11/extensions/Xrender.h>
…		…
32		32
33	#ifndef FilterConvolution	33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"	34	#define FilterConvolution "convolution"
35	#endif	35	#endif
36		36
37	/*	37	#ifndef RepeatPad
38	* Pixmap geometry string interpretation :	38	#define RepeatPad True
39	* Each geometry string contains zero or one scale/position	39	#endif
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	*/
52		40
53	#ifdef HAVE_BG_PIXMAP	41	#ifdef HAVE_BG_PIXMAP
		42	# if XRENDER
		43	static Picture
		44	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
		45	{
		46	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
		47
		48	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
		49	XRenderPictureAttributes pa;
		50	pa.repeat = True;
		51	pa.component_alpha = component_alpha;
		52	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
		53
		54	XFreePixmap (dpy, pixmap);
		55
		56	return mask;
		57	}
		58	# endif
		59
54	void	60	void
55	rxvt_term::bg_destroy ()	61	rxvt_term::bg_destroy ()
56	{	62	{
57	#ifdef HAVE_AFTERIMAGE
58	if (original_asim)
59	safe_asimage_destroy (original_asim);
60	if (asv)
61	destroy_asvisual (asv, 0);
62	if (asimman)
63	destroy_image_manager (asimman, 0);
64	#endif
65
66	#ifdef HAVE_PIXBUF
67	if (pixbuf)
68	g_object_unref (pixbuf);
69	#endif
70
71	if (bg_pixmap)	63	if (bg_pixmap)
72	XFreePixmap (dpy, bg_pixmap);	64	XFreePixmap (dpy, bg_pixmap);
73	}	65	}
74		66
75	bool	67	bool
…		…
93	if (bg_flags & BG_IS_TRANSPARENT)	85	if (bg_flags & BG_IS_TRANSPARENT)
94	return true;	86	return true;
95	# endif	87	# endif
96		88
97	# ifdef BG_IMAGE_FROM_FILE	89	# ifdef BG_IMAGE_FROM_FILE
98	if (bg_flags & BG_IS_FROM_FILE)	90	if (bg_image.flags & IM_IS_SET)
99	{	91	{
100	if (bg_flags & BG_IS_SIZE_SENSITIVE)	92	if ((bg_image.flags & IM_IS_SIZE_SENSITIVE)
		93	|| bg_image.width () > szHint.width
		94	|| bg_image.height () > szHint.height)
101	return true;	95	return true;
102	}	96	}
103	# endif	97	# endif
104		98
105	return false;	99	return false;
…		…
112	if (bg_flags & BG_IS_TRANSPARENT)	106	if (bg_flags & BG_IS_TRANSPARENT)
113	return true;	107	return true;
114	# endif	108	# endif
115		109
116	# ifdef BG_IMAGE_FROM_FILE	110	# ifdef BG_IMAGE_FROM_FILE
117	if (bg_flags & BG_IS_FROM_FILE)	111	if (bg_image.flags & IM_IS_SET)
118	{	112	{
119	if (bg_flags & BG_ROOT_ALIGN)	113	if (bg_image.flags & IM_ROOT_ALIGN)
120	return true;	114	return true;
121	}	115	}
122	# endif	116	# endif
123		117
124	return false;	118	return false;
125	}	119	}
126		120
127	# ifdef BG_IMAGE_FROM_FILE	121	# ifdef BG_IMAGE_FROM_FILE
128	static inline bool
129	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
130	{
131	if (geom_flags & flag)
132	{
133	if (new_value > 1000)
134	new_value = 1000;
135	if (new_value != scale)
136	{
137	scale = new_value;
138	return true;
139	}
140	}
141	return false;
142	}
143
144	static inline bool
145	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
146	{
147	if (geom_flags & flag)
148	{
149	if (new_value < -100)
150	new_value = -100;
151	else if (new_value > 200)
152	new_value = 200;
153	if (new_value != align)
154	{
155	align = new_value;
156	return true;
157	}
158	}
159	return false;
160	}
161
162	static inline int	122	static inline int
163	make_align_position (int align, int window_size, int image_size)	123	make_align_position (int align, int window_size, int image_size)
164	{	124	{
165	int diff = window_size - image_size;
166	int smaller = min (image_size, window_size);
167
168	if (align >= 0 && align <= 100)	125	if (align >= 0 && align <= 100)
169	return diff * align / 100;	126	return lerp (0, window_size - image_size, align);
170	else if (align > 100 && align <= 200)	127	else if (align > 100)
171	return ((align - 100) * smaller / 100) + window_size - smaller;	128	return lerp (window_size - image_size, window_size, align - 100);
172	else if (align >= -100 && align < 0)	129	else
173	return ((align + 100) * smaller / 100) - image_size;	130	return lerp (-image_size, 0, align + 100);
174	return 0;
175	}	131	}
176		132
177	static inline int	133	static inline int
178	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	134	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
179	{	135	{
…		…
185	src_pos = -pos;	141	src_pos = -pos;
186	dst_pos = 0;	142	dst_pos = 0;
187	dst_size += pos;	143	dst_size += pos;
188	}	144	}
189		145
190	if (dst_pos + dst_size > target_size)
191	dst_size = target_size - dst_pos;	146	min_it (dst_size, target_size - dst_pos);
192	return src_pos;	147	return src_pos;
193	}	148	}
194		149
		150	static void
		151	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
		152	{
		153	if (!strcasecmp (style, "tiled"))
		154	{
		155	flags = IM_TILE;
		156	w = h = noScale;
		157	x = y = 0;
		158	}
		159	else if (!strcasecmp (style, "aspect-stretched"))
		160	{
		161	flags = IM_KEEP_ASPECT;
		162	w = h = windowScale;
		163	x = y = centerAlign;
		164	}
		165	else if (!strcasecmp (style, "stretched"))
		166	{
		167	flags = 0;
		168	w = h = windowScale;
		169	x = y = centerAlign;
		170	}
		171	else if (!strcasecmp (style, "centered"))
		172	{
		173	flags = 0;
		174	w = h = noScale;
		175	x = y = centerAlign;
		176	}
		177	else if (!strcasecmp (style, "root-tiled"))
		178	{
		179	flags = IM_TILE|IM_ROOT_ALIGN;
		180	w = h = noScale;
		181	x = y = 0;
		182	}
		183	}
		184
195	bool	185	bool
196	rxvt_term::bg_set_geometry (const char *geom, bool update)	186	rxvt_image::set_geometry (const char *geom, bool update)
197	{	187	{
198	bool changed = false;	188	bool changed = false;
199	int geom_flags = 0;	189	int geom_flags = 0;
200	int x = 0, y = 0;	190	int x = h_align;
		191	int y = v_align;
201	unsigned int w = 0, h = 0;	192	unsigned int w = h_scale;
202	unsigned int n;	193	unsigned int h = v_scale;
203	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	194	uint8_t new_flags = 0;
204	const char *ops;
205		195
206	if (geom == NULL)	196	if (geom == NULL)
207	return false;	197	return false;
208		198
209	char str[256];	199	if (geom[0])
210
211	ops = strchr (geom, ':');
212	if (ops == NULL)
213	n = strlen (geom);
214	else
215	n = ops - geom;
216
217	if (n >= sizeof (str))
218	return false;
219
220	memcpy (str, geom, n);
221	str[n] = '\0';
222	rxvt_strtrim (str);
223
224	if (str[0])
225	{	200	{
226	/* we have geometry string - let's handle it prior to applying ops */	201	char **arr = rxvt_strsplit (':', geom);
		202
		203	for (int i = 0; arr[i]; i++)
		204	{
		205	if (!strncasecmp (arr[i], "style=", 6))
		206	{
		207	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		208	geom_flags = WidthValue|HeightValue|XValue|YValue;
		209	}
		210	else if (!strcasecmp (arr[i], "op=tile"))
		211	new_flags |= IM_TILE;
		212	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		213	new_flags |= IM_KEEP_ASPECT;
		214	else if (!strcasecmp (arr[i], "op=root-align"))
		215	new_flags |= IM_ROOT_ALIGN;
		216
		217	// deprecated
		218	else if (!strcasecmp (arr[i], "tile"))
		219	{
		220	new_flags |= IM_TILE;
		221	w = h = noScale;
		222	geom_flags |= WidthValue|HeightValue;
		223	}
		224	else if (!strcasecmp (arr[i], "propscale"))
		225	{
		226	new_flags |= IM_KEEP_ASPECT;
		227	w = h = windowScale;
		228	geom_flags |= WidthValue|HeightValue;
		229	}
		230	else if (!strcasecmp (arr[i], "hscale"))
		231	{
		232	new_flags |= IM_TILE;
		233	w = windowScale;
		234	h = noScale;
		235	geom_flags |= WidthValue|HeightValue;
		236	}
		237	else if (!strcasecmp (arr[i], "vscale"))
		238	{
		239	new_flags |= IM_TILE;
		240	h = windowScale;
		241	w = noScale;
		242	geom_flags |= WidthValue|HeightValue;
		243	}
		244	else if (!strcasecmp (arr[i], "scale"))
		245	{
		246	w = h = windowScale;
		247	geom_flags |= WidthValue|HeightValue;
		248	}
		249	else if (!strcasecmp (arr[i], "auto"))
		250	{
		251	w = h = windowScale;
		252	x = y = centerAlign;
		253	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		254	}
		255	else if (!strcasecmp (arr[i], "root"))
		256	{
		257	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		258	w = h = noScale;
		259	geom_flags |= WidthValue|HeightValue;
		260	}
		261
		262	else
227	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	263	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
228	} /* done parsing geometry string */	264	} /* done parsing ops */
		265
		266	rxvt_free_strsplit (arr);
		267	}
		268
		269	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
229		270
230	if (!update)	271	if (!update)
231	{	272	{
232	if (!(geom_flags & XValue))	273	if (!(geom_flags & XValue))
233	x = y = defaultAlign;	274	x = y = defaultAlign;
…		…
238	w = h = defaultScale;	279	w = h = defaultScale;
239	else if (!(geom_flags & HeightValue))	280	else if (!(geom_flags & HeightValue))
240	h = w;	281	h = w;
241	else if (!(geom_flags & WidthValue))	282	else if (!(geom_flags & WidthValue))
242	w = h;	283	w = h;
243
244	geom_flags |= WidthValue|HeightValue|XValue|YValue;
245	}
246
247	if (ops)
248	{	284	}
249	char **arr = rxvt_strsplit (':', ops + 1);
250		285
251	for (int i = 0; arr[i]; i++)	286	clamp_it (x, -100, 200);
252	{	287	clamp_it (y, -100, 200);
253	if (!strcasecmp (arr[i], "style=tiled"))
254	{
255	new_flags = BG_TILE;
256	w = h = noScale;
257	x = y = 0;
258	geom_flags = WidthValue|HeightValue|XValue|YValue;
259	}
260	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
261	{
262	new_flags = BG_PROP_SCALE;
263	x = y = centerAlign;
264	geom_flags = XValue|YValue;
265	}
266	else if (!strcasecmp (arr[i], "style=stretched"))
267	{
268	new_flags = 0;
269	w = h = windowScale;
270	geom_flags = WidthValue|HeightValue;
271	}
272	else if (!strcasecmp (arr[i], "style=centered"))
273	{
274	new_flags = 0;
275	w = h = noScale;
276	x = y = centerAlign;
277	geom_flags = WidthValue|HeightValue|XValue|YValue;
278	}
279	else if (!strcasecmp (arr[i], "style=root-tiled"))
280	{
281	new_flags = BG_TILE|BG_ROOT_ALIGN;
282	w = h = noScale;
283	geom_flags = WidthValue|HeightValue;
284	}
285	else if (!strcasecmp (arr[i], "op=tile"))
286	new_flags |= BG_TILE;
287	else if (!strcasecmp (arr[i], "op=pscale"))
288	new_flags |= BG_PROP_SCALE;
289	else if (!strcasecmp (arr[i], "op=root"))
290	new_flags |= BG_ROOT_ALIGN;
291		288
292	// deprecated	289	if (flags != new_flags
293	else if (!strcasecmp (arr[i], "tile"))	290	|| h_scale != w
294	{	291	|| v_scale != h
295	new_flags |= BG_TILE;	292	|| h_align != x
296	w = h = noScale;	293	|| v_align != y)
297	geom_flags |= WidthValue|HeightValue;
298	}
299	else if (!strcasecmp (arr[i], "propscale"))
300	{
301	new_flags |= BG_PROP_SCALE;
302	}
303	else if (!strcasecmp (arr[i], "hscale"))
304	{
305	new_flags |= BG_TILE;
306	w = windowScale;
307	h = noScale;
308	geom_flags |= WidthValue|HeightValue;
309	}
310	else if (!strcasecmp (arr[i], "vscale"))
311	{
312	new_flags |= BG_TILE;
313	h = windowScale;
314	w = noScale;
315	geom_flags |= WidthValue|HeightValue;
316	}
317	else if (!strcasecmp (arr[i], "scale"))
318	{
319	w = h = windowScale;
320	geom_flags |= WidthValue|HeightValue;
321	}
322	else if (!strcasecmp (arr[i], "auto"))
323	{
324	w = h = windowScale;
325	x = y = centerAlign;
326	geom_flags |= WidthValue|HeightValue|XValue|YValue;
327	}
328	else if (!strcasecmp (arr[i], "root"))
329	{
330	new_flags |= BG_TILE|BG_ROOT_ALIGN;
331	w = h = noScale;
332	geom_flags |= WidthValue|HeightValue;
333	}
334	} /* done parsing ops */
335
336	rxvt_free_strsplit (arr);
337	}	294	{
338
339	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
340	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
341	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
342	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
343
344	if (new_flags != bg_flags)
345	{
346	bg_flags = new_flags;	295	flags = new_flags;
		296	h_scale = w;
		297	v_scale = h;
		298	h_align = x;
		299	v_align = y;
347	changed = true;	300	changed = true;
348	}	301	}
349		302
		303	if (!(flags & IM_TILE)
		304	|| h_scale || v_scale
		305	|| (!(flags & IM_ROOT_ALIGN) && (h_align || v_align)))
		306	flags |= IM_IS_SIZE_SENSITIVE;
		307	else
		308	flags &= ~IM_IS_SIZE_SENSITIVE;
		309
350	return changed;	310	return changed;
351	}	311	}
352		312
353	void	313	void
354	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	314	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
355	{	315	{
		316	int image_width = image.width ();
		317	int image_height = image.height ();
356	int target_width = szHint.width;	318	int target_width = szHint.width;
357	int target_height = szHint.height;	319	int target_height = szHint.height;
		320	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		321	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
358		322
359	if (bg_flags & BG_PROP_SCALE)	323	w = h_scale * target_width / 100;
		324	h = v_scale * target_height / 100;
		325
		326	if (image.flags & IM_KEEP_ASPECT)
360	{	327	{
361	float scale = (float)target_width / image_width;	328	float scale = (float)w / image_width;
362	min_it (scale, (float)target_height / image_height);	329	min_it (scale, (float)h / image_height);
363	w = image_width * scale + 0.5;	330	w = image_width * scale + 0.5;
364	h = image_height * scale + 0.5;	331	h = image_height * scale + 0.5;
365	}	332	}
366	else
367	{
368	w = h_scale * target_width / 100;
369	h = v_scale * target_height / 100;
370	}
371		333
372	if (!w) w = image_width;	334	if (!w) w = image_width;
373	if (!h) h = image_height;	335	if (!h) h = image_height;
374		336
375	if (bg_flags & BG_ROOT_ALIGN)	337	if (image.flags & IM_ROOT_ALIGN)
376	{	338	{
377	x = -target_x;	339	x = -target_x;
378	y = -target_y;	340	y = -target_y;
379	}	341	}
380	else	342	else
381	{	343	{
382	x = make_align_position (h_align, target_width, w);	344	x = make_align_position (image.h_align, target_width, w);
383	y = make_align_position (v_align, target_height, h);	345	y = make_align_position (image.v_align, target_height, h);
384	}
385
386	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
387	if (!(bg_flags & BG_TILE)
388	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
389	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
390	|| w > target_width || h > target_height)
391	bg_flags |= BG_IS_SIZE_SENSITIVE;
392	}
393
394	# ifdef HAVE_AFTERIMAGE
395	bool
396	rxvt_term::render_image (unsigned long tr_flags)
397	{
398	init_asv ();
399
400	ASImage *background = NULL;
401	ARGB32 background_tint = TINT_LEAVE_SAME;
402
403	# ifdef ENABLE_TRANSPARENCY
404	if (tr_flags)
405	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
406
407	if (tr_flags & BG_NEEDS_TINT)
408	{	346	}
409	ShadingInfo as_shade;	347	}
410	as_shade.shading = shade;
411		348
412	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	349	# ifdef HAVE_PIXBUF
413	if (bg_flags & BG_TINT_SET)	350	bool
414	tint.get (c);	351	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
415	as_shade.tintColor.red = c.r;	352	int src_x, int src_y, int dst_x, int dst_y,
416	as_shade.tintColor.green = c.g;	353	unsigned int width, unsigned int height, bool argb)
417	as_shade.tintColor.blue = c.b;	354	{
		355	XImage *ximage;
		356	char *line;
		357	int width_r, width_g, width_b, width_a;
		358	int sh_r, sh_g, sh_b, sh_a;
		359	uint32_t red_mask, green_mask, blue_mask, alpha_mask;
		360	int rowstride;
		361	int channels;
		362	unsigned char *row;
418		363
419	background_tint = shading2tint32 (&as_shade);	364	if (visual->c_class != TrueColor)
		365	return false;
		366
		367	if (argb)
420	}	368	{
421		369	red_mask = 0xff << 16;
422	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)	370	green_mask = 0xff << 8;
		371	blue_mask = 0xff;
		372	alpha_mask = 0xff << 24;
423	{	373	}
424	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,	374	else
425	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,	375	{
426	100, ASIMAGE_QUALITY_DEFAULT);	376	red_mask = visual->red_mask;
		377	green_mask = visual->green_mask;
		378	blue_mask = visual->blue_mask;
		379	#if XRENDER
		380	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
427	if (tmp)	381	if (format)
		382	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
		383	else
		384	#endif
		385	alpha_mask = 0;
		386	}
		387
		388	width_r = ecb_popcount32 (red_mask);
		389	width_g = ecb_popcount32 (green_mask);
		390	width_b = ecb_popcount32 (blue_mask);
		391	width_a = ecb_popcount32 (alpha_mask);
		392
		393	if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
		394	return false;
		395
		396	sh_r = ecb_ctz32 (red_mask);
		397	sh_g = ecb_ctz32 (green_mask);
		398	sh_b = ecb_ctz32 (blue_mask);
		399	sh_a = ecb_ctz32 (alpha_mask);
		400
		401	if (width > 32767 || height > 32767)
		402	return false;
		403
		404	ximage = XCreateImage (dpy, visual, argb ? 32 : depth, ZPixmap, 0, 0,
		405	width, height, 32, 0);
		406	if (!ximage)
		407	return false;
		408
		409	if (height > INT_MAX / ximage->bytes_per_line
		410	|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
		411	{
		412	XDestroyImage (ximage);
		413	return false;
		414	}
		415
		416	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		417
		418	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
		419	channels = gdk_pixbuf_get_n_channels (pixbuf);
		420	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
		421	line = ximage->data;
		422
		423	rgba c (0, 0, 0);
		424
		425	if (channels == 4 && alpha_mask == 0)
		426	{
		427	pix_colors[Color_bg].get (c);
		428	c.r >>= 8;
		429	c.g >>= 8;
		430	c.b >>= 8;
		431	}
		432
		433	for (int y = 0; y < height; y++)
		434	{
		435	for (int x = 0; x < width; x++)
		436	{
		437	unsigned char *pixel = row + x * channels;
		438	uint32_t value;
		439	unsigned char r, g, b, a;
		440
		441	if (channels == 4)
428	{	442	{
429	destroy_asimage (&background);	443	a = pixel[3];
430	background = tmp;	444	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
		445	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
		446	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
		447	}
		448	else
		449	{
		450	a = 0xff;
		451	r = pixel[0];
		452	g = pixel[1];
		453	b = pixel[2];
		454	}
		455
		456	value = ((r >> (8 - width_r)) << sh_r)
		457	| ((g >> (8 - width_g)) << sh_g)
		458	| ((b >> (8 - width_b)) << sh_b)
		459	| ((a >> (8 - width_a)) << sh_a);
		460
		461	if (ximage->bits_per_pixel == 32)
		462	((uint32_t *)line)[x] = value;
		463	else
		464	XPutPixel (ximage, x, y, value);
431	}	465	}
432	}
433	# endif
434		466
435	ASImage *result = 0;	467	row += rowstride;
		468	line += ximage->bytes_per_line;
		469	}
		470
		471	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
		472	XDestroyImage (ximage);
		473	return true;
		474	}
		475
		476	bool
		477	rxvt_term::render_image (rxvt_image &image)
		478	{
		479	GdkPixbuf *pixbuf = image.pixbuf;
		480	if (!pixbuf)
		481	return false;
		482
		483	bool need_blend = bg_flags & BG_IS_VALID;
		484
		485	if (need_blend
		486	&& !(bg_flags & BG_HAS_RENDER))
		487	return false;
		488
		489	GdkPixbuf *result;
		490
		491	int image_width = gdk_pixbuf_get_width (pixbuf);
		492	int image_height = gdk_pixbuf_get_height (pixbuf);
436		493
437	int target_width = szHint.width;	494	int target_width = szHint.width;
438	int target_height = szHint.height;	495	int target_height = szHint.height;
439	int new_pmap_width = target_width;	496	int new_pmap_width = target_width;
440	int new_pmap_height = target_height;	497	int new_pmap_height = target_height;
…		…
442	int x = 0;	499	int x = 0;
443	int y = 0;	500	int y = 0;
444	int w = 0;	501	int w = 0;
445	int h = 0;	502	int h = 0;
446		503
447	if (original_asim)	504	get_image_geometry (image, w, h, x, y);
448	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
449		505
450	if (!original_asim	506	if (!(image.flags & IM_ROOT_ALIGN)
451	|| (!(bg_flags & BG_ROOT_ALIGN)
452	&& (x >= target_width	507	&& (x >= target_width
453	|| y >= target_height	508	|| y >= target_height
454	|| (x + w <= 0)	509	|| x + w <= 0
455	|| (y + h <= 0))))	510	|| y + h <= 0))
		511	return false;
		512
		513	result = pixbuf;
		514
		515	if (w != image_width
		516	|| h != image_height)
		517	{
		518	result = gdk_pixbuf_scale_simple (pixbuf,
		519	w, h,
		520	GDK_INTERP_BILINEAR);
456	{	521	}
457	if (background)
458	{
459	new_pmap_width = background->width;
460	new_pmap_height = background->height;
461	result = background;
462		522
463	if (background_tint != TINT_LEAVE_SAME)	523	if (!result)
		524	return false;
		525
		526	bool ret = false;
		527
		528	XGCValues gcv;
		529	GC gc;
		530	Pixmap tmp_pixmap;
		531
		532	image_width = gdk_pixbuf_get_width (result);
		533	image_height = gdk_pixbuf_get_height (result);
		534
		535	if (need_blend)
		536	tmp_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, 32);
		537	else
		538	{
		539	if (image.flags & IM_TILE)
464	{	540	{
465	ASImage *tmp = tile_asimage (asv, background, 0, 0,	541	new_pmap_width = min (image_width, target_width);
466	target_width, target_height, background_tint,	542	new_pmap_height = min (image_height, target_height);
467	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
468	if (tmp)
469	result = tmp;
470	}
471	}	543	}
472	else
473	new_pmap_width = new_pmap_height = 0;
474	}
475	else
476	{
477	result = original_asim;
478		544
479	if ((w != original_asim->width)
480	|| (h != original_asim->height))
481	{
482	result = scale_asimage (asv, original_asim,
483	w, h,
484	background ? ASA_ASImage : ASA_XImage,
485	100, ASIMAGE_QUALITY_DEFAULT);
486	}
487
488	if (background == NULL)
489	{
490	if (bg_flags & BG_TILE)
491	{
492	/* if tiling - pixmap has to be sized exactly as the image,
493	but there is no need to make it bigger than the window! */
494	new_pmap_width = min (result->width, target_width);
495	new_pmap_height = min (result->height, target_height);
496
497	/* we also need to tile our image in both directions */
498	ASImage *tmp = tile_asimage (asv, result,
499	(int)result->width - x,
500	(int)result->height - y,
501	new_pmap_width,
502	new_pmap_height,
503	TINT_LEAVE_SAME, ASA_XImage,
504	100, ASIMAGE_QUALITY_DEFAULT);
505	if (tmp)
506	{
507	if (result != original_asim)
508	destroy_asimage (&result);
509
510	result = tmp;
511	}
512	}
513	}
514	else
515	{
516	/* if blending background and image - pixmap has to be sized same as target window */
517	ASImageLayer *layers = create_image_layers (2);
518
519	layers[0].im = background;
520	layers[0].clip_width = target_width;
521	layers[0].clip_height = target_height;
522	layers[0].tint = background_tint;
523	layers[1].im = result;
524
525	if (bg_flags & BG_TILE)
526	{
527	/* tile horizontally */
528	while (x > 0) x -= (int)result->width;
529	layers[1].dst_x = x;
530	layers[1].clip_width = result->width+target_width;
531	}
532	else
533	{
534	/* clip horizontally */
535	layers[1].dst_x = x;
536	layers[1].clip_width = result->width;
537	}
538
539	if (bg_flags & BG_TILE)
540	{
541	while (y > 0) y -= (int)result->height;
542	layers[1].dst_y = y;
543	layers[1].clip_height = result->height + target_height;
544	}
545	else
546	{
547	layers[1].dst_y = y;
548	layers[1].clip_height = result->height;
549	}
550
551	if (rs[Rs_blendtype])
552	{
553	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
554	if (layers[1].merge_scanlines == NULL)
555	layers[1].merge_scanlines = alphablend_scanlines;
556	}
557
558	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
559	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
560
561	if (tmp)
562	{
563	if (result != original_asim)
564	destroy_asimage (&result);
565
566	result = tmp;
567	}
568
569	free (layers);
570	}
571	}
572
573	bool ret = false;
574
575	if (result)
576	{
577	XGCValues gcv;
578	GC gc;
579
580	/* create Pixmap */
581	if (bg_pixmap == None	545	if (bg_pixmap == None
582	|| bg_pmap_width != new_pmap_width	546	|| bg_pmap_width != new_pmap_width
583	|| bg_pmap_height != new_pmap_height)	547	|| bg_pmap_height != new_pmap_height)
584	{	548	{
585	if (bg_pixmap)	549	if (bg_pixmap)
586	XFreePixmap (dpy, bg_pixmap);	550	XFreePixmap (dpy, bg_pixmap);
587	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);	551	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
588	bg_pmap_width = new_pmap_width;	552	bg_pmap_width = new_pmap_width;
589	bg_pmap_height = new_pmap_height;	553	bg_pmap_height = new_pmap_height;
590	}	554	}
591	/* fill with background color (if result's not completely overlapping it) */
592	gcv.foreground = pix_colors[Color_bg];
593	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
594		555
595	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
596	int dst_width = result->width, dst_height = result->height;
597	if (background == NULL)
598	{
599	if (!(bg_flags & BG_TILE))
600	{
601	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
602	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
603	}
604
605	if (dst_x > 0 || dst_y > 0
606	|| dst_x + dst_width < new_pmap_width
607	|| dst_y + dst_height < new_pmap_height)
608	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
609	}
610
611	/* put result on pixmap */
612	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
613	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
614
615	if (result != background && result != original_asim)
616	destroy_asimage (&result);
617
618	XFreeGC (dpy, gc);
619
620	ret = true;
621	}
622
623	if (background)
624	destroy_asimage (&background);
625
626	return ret;
627	}
628	# endif /* HAVE_AFTERIMAGE */
629
630	# ifdef HAVE_PIXBUF
631	bool
632	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
633	int src_x, int src_y, int dst_x, int dst_y,
634	unsigned int width, unsigned int height)
635	{
636	XImage *ximage;
637	char *data, *line;
638	int bytes_per_pixel;
639	int width_r, width_g, width_b;
640	int sh_r, sh_g, sh_b;
641	int rowstride;
642	int channels;
643	unsigned char *row;
644
645	if (visual->c_class != TrueColor)
646	return false;
647
648	if (depth == 24 || depth == 32)
649	bytes_per_pixel = 4;
650	else if (depth == 15 || depth == 16)
651	bytes_per_pixel = 2;
652	else
653	return false;
654
655	width_r = ecb_popcount32 (visual->red_mask);
656	width_g = ecb_popcount32 (visual->green_mask);
657	width_b = ecb_popcount32 (visual->blue_mask);
658
659	if (width_r > 8 || width_g > 8 || width_b > 8)
660	return false;
661
662	sh_r = ecb_ctz32 (visual->red_mask);
663	sh_g = ecb_ctz32 (visual->green_mask);
664	sh_b = ecb_ctz32 (visual->blue_mask);
665
666	if (width > INT_MAX / height / bytes_per_pixel)
667	return false;
668
669	data = (char *)malloc (width * height * bytes_per_pixel);
670	if (!data)
671	return false;
672
673	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
674	width, height, bytes_per_pixel * 8, 0);
675	if (!ximage)
676	{
677	free (data);
678	return false;
679	}
680
681	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
682
683	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
684	channels = gdk_pixbuf_get_n_channels (pixbuf);
685	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
686	line = data;
687
688	for (int y = 0; y < height; y++)
689	{
690	for (int x = 0; x < width; x++)
691	{
692	unsigned char *pixel = row + x * channels;
693	uint32_t value;
694
695	value = ((pixel[0] >> (8 - width_r)) << sh_r)
696	| ((pixel[1] >> (8 - width_g)) << sh_g)
697	| ((pixel[2] >> (8 - width_b)) << sh_b);
698
699	if (bytes_per_pixel == 4)
700	((uint32_t *)line)[x] = value;
701	else
702	((uint16_t *)line)[x] = value;
703	}
704
705	row += rowstride;
706	line += ximage->bytes_per_line;
707	}
708
709	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
710	XDestroyImage (ximage);
711	return true;
712	}
713
714	bool
715	rxvt_term::render_image (unsigned long tr_flags)
716	{
717	if (!pixbuf)
718	return false;
719
720	if (tr_flags
721	&& !(bg_flags & BG_HAS_RENDER))
722	return false;
723
724	GdkPixbuf *result;
725
726	int image_width = gdk_pixbuf_get_width (pixbuf);
727	int image_height = gdk_pixbuf_get_height (pixbuf);
728
729	int target_width = szHint.width;
730	int target_height = szHint.height;
731	int new_pmap_width = target_width;
732	int new_pmap_height = target_height;
733
734	int x = 0;
735	int y = 0;
736	int w = 0;
737	int h = 0;
738
739	get_image_geometry (image_width, image_height, w, h, x, y);
740
741	if (!(bg_flags & BG_ROOT_ALIGN)
742	&& (x >= target_width
743	|| y >= target_height
744	|| (x + w <= 0)
745	|| (y + h <= 0)))
746	return false;
747
748	result = pixbuf;
749
750	if ((w != image_width)
751	|| (h != image_height))
752	{
753	result = gdk_pixbuf_scale_simple (pixbuf,
754	w, h,
755	GDK_INTERP_BILINEAR);
756	}
757
758	if (!result)
759	return false;
760
761	bool ret = false;
762
763	XGCValues gcv;
764	GC gc;
765	Pixmap root_pmap;
766
767	image_width = gdk_pixbuf_get_width (result);
768	image_height = gdk_pixbuf_get_height (result);
769
770	if (tr_flags)
771	{
772	root_pmap = bg_pixmap;	556	tmp_pixmap = bg_pixmap;
773	bg_pixmap = None;
774	}
775	else
776	{
777	if (bg_flags & BG_TILE)
778	{
779	new_pmap_width = min (image_width, target_width);
780	new_pmap_height = min (image_height, target_height);
781	}
782	}
783
784	if (bg_pixmap == None
785	|| bg_pmap_width != new_pmap_width
786	|| bg_pmap_height != new_pmap_height)
787	{
788	if (bg_pixmap)
789	XFreePixmap (dpy, bg_pixmap);
790	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
791	bg_pmap_width = new_pmap_width;
792	bg_pmap_height = new_pmap_height;
793	}	557	}
794		558
795	gcv.foreground = pix_colors[Color_bg];	559	gcv.foreground = pix_colors[Color_bg];
796	gc = XCreateGC (dpy, vt, GCForeground, &gcv);	560	gc = XCreateGC (dpy, tmp_pixmap, GCForeground, &gcv);
797		561
798	if (gc)	562	if (gc)
799	{	563	{
800	if (bg_flags & BG_TILE)	564	if (image.flags & IM_TILE)
801	{	565	{
802	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);	566	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, need_blend ? 32 : depth);
803	pixbuf_to_pixmap (result, tile, gc,	567	pixbuf_to_pixmap (result, tile, gc,
804	0, 0,	568	0, 0,
805	0, 0,	569	0, 0,
806	image_width, image_height);	570	image_width, image_height, need_blend);
807		571
808	gcv.tile = tile;	572	gcv.tile = tile;
809	gcv.fill_style = FillTiled;	573	gcv.fill_style = FillTiled;
810	gcv.ts_x_origin = x;	574	gcv.ts_x_origin = x;
811	gcv.ts_y_origin = y;	575	gcv.ts_y_origin = y;
812	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	576	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
813		577
814	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	578	XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
815	XFreePixmap (dpy, tile);	579	XFreePixmap (dpy, tile);
816	}	580	}
817	else	581	else
818	{	582	{
819	int src_x, src_y, dst_x, dst_y;	583	int src_x, src_y, dst_x, dst_y;
…		…
823	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);	587	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
824		588
825	if (dst_x > 0 || dst_y > 0	589	if (dst_x > 0 || dst_y > 0
826	|| dst_x + dst_width < new_pmap_width	590	|| dst_x + dst_width < new_pmap_width
827	|| dst_y + dst_height < new_pmap_height)	591	|| dst_y + dst_height < new_pmap_height)
828	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	592	XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
829		593
830	if (dst_x < new_pmap_width && dst_y < new_pmap_height)	594	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
831	pixbuf_to_pixmap (result, bg_pixmap, gc,	595	pixbuf_to_pixmap (result, tmp_pixmap, gc,
832	src_x, src_y,	596	src_x, src_y,
833	dst_x, dst_y,	597	dst_x, dst_y,
834	dst_width, dst_height);	598	dst_width, dst_height, need_blend);
835	}	599	}
836		600
837	#if XRENDER	601	#if XRENDER
838	if (tr_flags)	602	if (need_blend)
839	{	603	{
840	XRenderPictureAttributes pa;	604	XRenderPictFormat *argb_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
841
842	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	605	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		606
843	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	607	Picture src = XRenderCreatePicture (dpy, tmp_pixmap, argb_format, 0, 0);
844		608
845	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
846	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	609	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
847		610
848	pa.repeat = True;	611	Picture mask = create_xrender_mask (dpy, vt, False, False);
849	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
850	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
851	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
852	XFreePixmap (dpy, mask_pmap);
853		612
854	XRenderColor mask_c;	613	XRenderColor mask_c;
855		614
856	mask_c.alpha = 0x8000;	615	mask_c.alpha = 0x8000;
857	mask_c.red = 0;	616	mask_c.red =
858	mask_c.green = 0;	617	mask_c.green =
859	mask_c.blue = 0;	618	mask_c.blue = 0;
860	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);	619	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		620
861	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);	621	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
862		622
863	XRenderFreePicture (dpy, src);	623	XRenderFreePicture (dpy, src);
864	XRenderFreePicture (dpy, dst);	624	XRenderFreePicture (dpy, dst);
865	XRenderFreePicture (dpy, mask);	625	XRenderFreePicture (dpy, mask);
…		…
872	}	632	}
873		633
874	if (result != pixbuf)	634	if (result != pixbuf)
875	g_object_unref (result);	635	g_object_unref (result);
876		636
877	if (tr_flags)	637	if (need_blend)
878	XFreePixmap (dpy, root_pmap);	638	XFreePixmap (dpy, tmp_pixmap);
879		639
880	return ret;	640	return ret;
881	}	641	}
882	# endif /* HAVE_PIXBUF */	642	# endif /* HAVE_PIXBUF */
883		643
884	bool	644	bool
885	rxvt_term::bg_set_file (const char *file)	645	rxvt_image::set_file (const char *file)
886	{	646	{
887	if (!file || !*file)	647	if (!file || !*file)
888	return false;	648	return false;
889		649
		650	bool ret = false;
890	if (const char *p = strchr (file, ';'))	651	const char *p = strchr (file, ';');
		652
		653	if (p)
891	{	654	{
892	size_t len = p - file;	655	size_t len = p - file;
893	char *f = rxvt_temp_buf<char> (len + 1);	656	char *f = rxvt_temp_buf<char> (len + 1);
894	memcpy (f, file, len);	657	memcpy (f, file, len);
895	f[len] = '\0';	658	f[len] = '\0';
896	file = f;	659	file = f;
897	}	660	}
898		661
899	# ifdef HAVE_AFTERIMAGE
900	if (!asimman)
901	asimman = create_generic_imageman (rs[Rs_path]);
902	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
903	if (image)
904	{
905	if (original_asim)
906	safe_asimage_destroy (original_asim);
907	original_asim = image;
908	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
909	return true;
910	}
911	# endif
912
913	# ifdef HAVE_PIXBUF	662	# ifdef HAVE_PIXBUF
914	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	663	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
915	if (image)	664	if (image)
916	{	665	{
917	if (pixbuf)	666	if (pixbuf)
918	g_object_unref (pixbuf);	667	g_object_unref (pixbuf);
919	pixbuf = image;	668	pixbuf = image;
920	bg_flags |= BG_IS_FROM_FILE;
921	return true;	669	ret = true;
922	}	670	}
923	# endif	671	# endif
924		672
		673	if (ret)
		674	{
		675	flags = IM_IS_SET | IM_IS_SIZE_SENSITIVE;
		676	h_scale = v_scale = defaultScale;
		677	h_align = v_align = defaultAlign;
		678
		679	if (p)
		680	set_geometry (p + 1);
		681	}
		682
925	return false;	683	return ret;
926	}	684	}
927		685
928	# endif /* BG_IMAGE_FROM_FILE */	686	# endif /* BG_IMAGE_FROM_FILE */
929		687
930	# ifdef ENABLE_TRANSPARENCY	688	# ifdef ENABLE_TRANSPARENCY
931	bool
932	rxvt_term::bg_set_transparent ()
933	{
934	if (!(bg_flags & BG_IS_TRANSPARENT))
935	{
936	bg_flags |= BG_IS_TRANSPARENT;
937	return true;
938	}
939
940	return false;
941	}
942
943	bool	689	bool
944	rxvt_term::bg_set_blur (const char *geom)	690	rxvt_term::bg_set_blur (const char *geom)
945	{	691	{
946	bool changed = false;	692	bool changed = false;
947	unsigned int hr, vr;	693	unsigned int hr, vr;
…		…
966	{	712	{
967	changed = true;	713	changed = true;
968	v_blurRadius = vr;	714	v_blurRadius = vr;
969	}	715	}
970		716
971	if (v_blurRadius == 0 && h_blurRadius == 0)
972	bg_flags &= ~BG_NEEDS_BLUR;
973	else
974	bg_flags |= BG_NEEDS_BLUR;
975
976	return changed;	717	return changed;
977	}	718	}
978		719
979	void	720	bool
980	rxvt_term::set_tint_shade_flags ()	721	rxvt_term::bg_set_tint (rxvt_color &new_tint)
981	{	722	{
982	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	723	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
983	bool has_shade = shade != 100;	724	{
984		725	tint = new_tint;
985	bg_flags &= ~BG_TINT_FLAGS;	726	bg_flags |= BG_TINT_SET;
986		727
987	if (bg_flags & BG_TINT_SET)	728	rgba c;
988	{
989	tint.get (c);	729	tint.get (c);
990	if (!has_shade
991	&& (c.r <= 0x00ff || c.r >= 0xff00)	730	if ((c.r <= 0x00ff || c.r >= 0xff00)
992	&& (c.g <= 0x00ff || c.g >= 0xff00)	731	&& (c.g <= 0x00ff || c.g >= 0xff00)
993	&& (c.b <= 0x00ff || c.b >= 0xff00))	732	&& (c.b <= 0x00ff || c.b >= 0xff00))
994	bg_flags |= BG_TINT_BITAND;	733	bg_flags |= BG_TINT_BITAND;
995	}	734	else
996
997	if (has_shade || (bg_flags & BG_TINT_SET))
998	bg_flags |= BG_NEEDS_TINT;
999	}
1000
1001	bool
1002	rxvt_term::bg_set_tint (rxvt_color &new_tint)
1003	{
1004	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
1005	{
1006	tint = new_tint;
1007	bg_flags |= BG_TINT_SET;	735	bg_flags &= ~BG_TINT_BITAND;
1008	set_tint_shade_flags ();	736
1009	return true;	737	return true;
1010	}	738	}
1011		739
1012	return false;	740	return false;
1013	}	741	}
1014		742
1015	bool	743	bool
1016	rxvt_term::bg_set_shade (const char *shade_str)	744	rxvt_term::bg_set_shade (const char *shade_str)
1017	{	745	{
1018	int new_shade = (shade_str) ? atoi (shade_str) : 100;	746	int new_shade = atoi (shade_str);
1019		747
1020	clamp_it (new_shade, -100, 200);	748	clamp_it (new_shade, -100, 200);
1021	if (new_shade < 0)	749	if (new_shade < 0)
1022	new_shade = 200 - (100 + new_shade);	750	new_shade = 200 - (100 + new_shade);
1023		751
1024	if (new_shade != shade)	752	if (new_shade != shade)
1025	{	753	{
1026	shade = new_shade;	754	shade = new_shade;
1027	set_tint_shade_flags ();
1028	return true;	755	return true;
1029	}	756	}
1030		757
1031	return false;	758	return false;
1032	}	759	}
…		…
1053	params[i+2] = XDoubleToFixed (kernel[i] / sum);	780	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1054	}	781	}
1055	#endif	782	#endif
1056		783
1057	bool	784	bool
1058	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	785	rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
1059	{	786	{
1060	bool ret = false;	787	bool ret = false;
1061	#if XRENDER	788	#if XRENDER
		789	if (!(bg_flags & BG_HAS_RENDER_CONV))
		790	return false;
		791
1062	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;	792	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1063	double *kernel = (double *)malloc (size * sizeof (double));	793	double *kernel = (double *)malloc (size * sizeof (double));
1064	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));	794	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1065		795
1066	XRenderPictureAttributes pa;	796	XRenderPictureAttributes pa;
1067	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	797	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1068		798
		799	pa.repeat = RepeatPad;
1069	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	800	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		801	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
1070	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	802	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		803	XFreePixmap (dpy, tmp);
1071		804
1072	if (kernel && params)	805	if (kernel && params)
1073	{	806	{
1074	if (h_blurRadius)
1075	{
1076	size = h_blurRadius * 2 + 1;	807	size = h_blurRadius * 2 + 1;
1077	get_gaussian_kernel (h_blurRadius, size, kernel, params);	808	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1078		809
1079	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	810	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1080	XRenderComposite (dpy,	811	XRenderComposite (dpy,
1081	PictOpSrc,	812	PictOpSrc,
1082	src,	813	src,
1083	None,	814	None,
1084	dst,	815	dst,
1085	0, 0,	816	0, 0,
1086	0, 0,	817	0, 0,
1087	0, 0,	818	0, 0,
1088	width, height);	819	width, height);
1089	}
1090		820
1091	if (v_blurRadius)	821	::swap (src, dst);
1092	{	822
1093	size = v_blurRadius * 2 + 1;	823	size = v_blurRadius * 2 + 1;
1094	get_gaussian_kernel (v_blurRadius, size, kernel, params);	824	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1095	::swap (params[0], params[1]);	825	::swap (params[0], params[1]);
1096		826
1097	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	827	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1098	XRenderComposite (dpy,	828	XRenderComposite (dpy,
1099	PictOpSrc,	829	PictOpSrc,
1100	src,	830	src,
1101	None,	831	None,
1102	dst,	832	dst,
1103	0, 0,	833	0, 0,
1104	0, 0,	834	0, 0,
1105	0, 0,	835	0, 0,
1106	width, height);	836	width, height);
1107	}
1108		837
1109	ret = true;	838	ret = true;
1110	}	839	}
1111		840
1112	free (kernel);	841	free (kernel);
…		…
1116	#endif	845	#endif
1117	return ret;	846	return ret;
1118	}	847	}
1119		848
1120	bool	849	bool
1121	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	850	rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
1122	{	851	{
1123	bool ret = false;	852	bool ret = false;
1124		853
1125	if (bg_flags & BG_TINT_BITAND)	854	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
1126	{	855	{
1127	XGCValues gcv;	856	XGCValues gcv;
1128	GC gc;	857	GC gc;
1129		858
1130	/* In this case we can tint image server-side getting significant	859	/* In this case we can tint image server-side getting significant
…		…
1139	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);	868	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1140	ret = true;	869	ret = true;
1141	XFreeGC (dpy, gc);	870	XFreeGC (dpy, gc);
1142	}	871	}
1143	}	872	}
1144	else
1145	{
1146	# if XRENDER	873	# if XRENDER
		874	else if (bg_flags & BG_HAS_RENDER)
		875	{
1147	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	876	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1148		877
1149	if (bg_flags & BG_TINT_SET)	878	if (bg_flags & BG_TINT_SET)
1150	tint.get (c);	879	tint.get (c);
1151		880
…		…
1160	c.r = c.r * (200 - shade) / 100;	889	c.r = c.r * (200 - shade) / 100;
1161	c.g = c.g * (200 - shade) / 100;	890	c.g = c.g * (200 - shade) / 100;
1162	c.b = c.b * (200 - shade) / 100;	891	c.b = c.b * (200 - shade) / 100;
1163	}	892	}
1164		893
1165	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1166	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	894	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1167	XRenderPictureAttributes pa;
1168		895
1169	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	896	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1170		897
1171	pa.repeat = True;	898	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1172		899
1173	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);	900	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1174	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1175	XFreePixmap (dpy, overlay_pmap);
1176
1177	pa.component_alpha = True;
1178	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1179	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1180	XFreePixmap (dpy, mask_pmap);
1181		901
1182	XRenderColor mask_c;	902	XRenderColor mask_c;
1183		903
1184	mask_c.alpha = 0xffff;	904	mask_c.alpha = 0xffff;
1185	mask_c.red =	905	mask_c.red =
…		…
1190	mask_c.alpha = 0;	910	mask_c.alpha = 0;
1191	mask_c.red = 0xffff - c.r;	911	mask_c.red = 0xffff - c.r;
1192	mask_c.green = 0xffff - c.g;	912	mask_c.green = 0xffff - c.g;
1193	mask_c.blue = 0xffff - c.b;	913	mask_c.blue = 0xffff - c.b;
1194	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);	914	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		915
1195	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);	916	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1196		917
1197	if (shade > 100)	918	if (shade > 100)
1198	{	919	{
1199	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1200	mask_c.alpha = 0;	920	mask_c.alpha = 0;
		921	mask_c.red =
		922	mask_c.green =
		923	mask_c.blue = 0xffff * (shade - 100) / 100;
1201	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);	924	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1202		925
1203	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);	926	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1204	}	927	}
1205		928
1206	ret = true;	929	ret = true;
1207		930
1208	XRenderFreePicture (dpy, mask_pic);	931	XRenderFreePicture (dpy, mask_pic);
1209	XRenderFreePicture (dpy, overlay_pic);	932	XRenderFreePicture (dpy, overlay_pic);
1210	XRenderFreePicture (dpy, back_pic);	933	XRenderFreePicture (dpy, back_pic);
		934	}
1211	# endif	935	# endif
1212	}
1213		936
1214	return ret;	937	return ret;
1215	}	938	}
1216		939
1217	/*	940	/*
1218	* Builds a pixmap of the same size as the terminal window that contains	941	* Builds a pixmap of the same size as the terminal window that contains
1219	* the tiled portion of the root pixmap that is supposed to be covered by	942	* the tiled portion of the root pixmap that is supposed to be covered by
1220	* our window.	943	* our window.
1221	*/	944	*/
1222	unsigned long	945	bool
1223	rxvt_term::make_transparency_pixmap ()	946	rxvt_term::make_transparency_pixmap ()
1224	{	947	{
1225	unsigned long result = 0;	948	bool ret = false;
1226		949
1227	/* root dimensions may change from call to call - but Display structure should	950	/* root dimensions may change from call to call - but Display structure should
1228	* be always up-to-date, so let's use it :	951	* be always up-to-date, so let's use it :
1229	*/	952	*/
1230	int screen = display->screen;	953	int screen = display->screen;
…		…
1268	#if XRENDER	991	#if XRENDER
1269	if (bg_flags & BG_HAS_RENDER)	992	if (bg_flags & BG_HAS_RENDER)
1270	{	993	{
1271	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);	994	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1272		995
1273	XRenderPictureAttributes pa;
1274
1275	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));	996	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1276	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);	997	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1277		998
1278	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	999	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1279	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	1000	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1280		1001
1281	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	1002	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
1282		1003
1283	XRenderFreePicture (dpy, src);	1004	XRenderFreePicture (dpy, src);
1284	XRenderFreePicture (dpy, dst);	1005	XRenderFreePicture (dpy, dst);
…		…
1301	bg_pmap_width = window_width;	1022	bg_pmap_width = window_width;
1302	bg_pmap_height = window_height;	1023	bg_pmap_height = window_height;
1303	}	1024	}
1304		1025
1305	/* straightforward pixmap copy */	1026	/* straightforward pixmap copy */
1306	while (sx < 0) sx += root_width;	1027	while (sx < 0) sx += root_pmap_width;
1307	while (sy < 0) sy += root_height;	1028	while (sy < 0) sy += root_pmap_height;
1308		1029
1309	gcv.tile = recoded_root_pmap;	1030	gcv.tile = recoded_root_pmap;
1310	gcv.fill_style = FillTiled;	1031	gcv.fill_style = FillTiled;
1311	gcv.ts_x_origin = -sx;	1032	gcv.ts_x_origin = -sx;
1312	gcv.ts_y_origin = -sy;	1033	gcv.ts_y_origin = -sy;
1313	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	1034	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1314		1035
1315	if (gc)	1036	if (gc)
1316	{	1037	{
1317	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);	1038	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1318	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);	1039	ret = true;
		1040	bool need_blur = h_blurRadius && v_blurRadius;
		1041	bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
		1042
		1043	if (!(bg_flags & BG_CLIENT_RENDER))
		1044	{
		1045	if (need_blur)
		1046	{
		1047	if (blur_pixmap (bg_pixmap, window_width, window_height))
		1048	need_blur = false;
		1049	}
		1050	if (need_tint)
		1051	{
		1052	if (tint_pixmap (bg_pixmap, window_width, window_height))
		1053	need_tint = false;
		1054	}
		1055	if (need_tint)
		1056	{
		1057	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1058	if (ximage)
		1059	{
		1060	/* our own client-side tinting */
		1061	tint_ximage (ximage);
		1062
		1063	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1064	XDestroyImage (ximage);
		1065	}
		1066	}
		1067	} /* server side rendering completed */
		1068
1319	XFreeGC (dpy, gc);	1069	XFreeGC (dpy, gc);
1320
1321	if (!(bg_flags & BG_CLIENT_RENDER))
1322	{
1323	if ((bg_flags & BG_NEEDS_BLUR)
1324	&& (bg_flags & BG_HAS_RENDER_CONV))
1325	{
1326	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1327	result &= ~BG_NEEDS_BLUR;
1328	}
1329	if ((bg_flags & BG_NEEDS_TINT)
1330	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1331	{
1332	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1333	result &= ~BG_NEEDS_TINT;
1334	}
1335	} /* server side rendering completed */
1336	}	1070	}
1337		1071
1338	if (recoded_root_pmap != root_pixmap)	1072	if (recoded_root_pmap != root_pixmap)
1339	XFreePixmap (dpy, recoded_root_pmap);	1073	XFreePixmap (dpy, recoded_root_pmap);
1340		1074
1341	return result;	1075	return ret;
1342	}	1076	}
1343		1077
1344	void	1078	void
1345	rxvt_term::bg_set_root_pixmap ()	1079	rxvt_term::bg_set_root_pixmap ()
1346	{	1080	{
…		…
1350		1084
1351	root_pixmap = new_root_pixmap;	1085	root_pixmap = new_root_pixmap;
1352	}	1086	}
1353	# endif /* ENABLE_TRANSPARENCY */	1087	# endif /* ENABLE_TRANSPARENCY */
1354		1088
1355	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1356	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1357	# endif
1358
1359	bool	1089	bool
1360	rxvt_term::bg_render ()	1090	rxvt_term::bg_render ()
1361	{	1091	{
1362	unsigned long tr_flags = 0;
1363
1364	bg_invalidate ();	1092	bg_invalidate ();
1365	# ifdef ENABLE_TRANSPARENCY	1093	# ifdef ENABLE_TRANSPARENCY
1366	if (bg_flags & BG_IS_TRANSPARENT)	1094	if (bg_flags & BG_IS_TRANSPARENT)
1367	{	1095	{
1368	/* we need to re-generate transparency pixmap in that case ! */	1096	/* we need to re-generate transparency pixmap in that case ! */
1369	tr_flags = make_transparency_pixmap ();	1097	if (make_transparency_pixmap ())
1370	if (tr_flags == 0)
1371	return false;
1372	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1373	bg_flags |= BG_IS_VALID;	1098	bg_flags |= BG_IS_VALID;
1374	}	1099	}
1375	# endif	1100	# endif
1376		1101
1377	# ifdef BG_IMAGE_FROM_FILE	1102	# ifdef BG_IMAGE_FROM_FILE
1378	if ((bg_flags & BG_IS_FROM_FILE)	1103	if (bg_image.flags & IM_IS_SET)
1379	|| (tr_flags & BG_EFFECTS_FLAGS))
1380	{	1104	{
1381	if (render_image (tr_flags))	1105	if (render_image (bg_image))
1382	bg_flags |= BG_IS_VALID;	1106	bg_flags |= BG_IS_VALID;
1383	}
1384	# endif
1385
1386	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1387	XImage *result = NULL;
1388
1389	if (tr_flags && !(bg_flags & BG_IS_VALID))
1390	{
1391	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1392	}
1393
1394	if (result)
1395	{
1396	/* our own client-side tinting */
1397	if (tr_flags & BG_NEEDS_TINT)
1398	{
1399	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1400	if (bg_flags & BG_TINT_SET)
1401	tint.get (c);
1402	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1403	}
1404
1405	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1406
1407	if (gc)
1408	{
1409	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1410
1411	XFreeGC (dpy, gc);
1412	bg_flags |= BG_IS_VALID;
1413	}
1414
1415	XDestroyImage (result);
1416	}	1107	}
1417	# endif	1108	# endif
1418		1109
1419	if (!(bg_flags & BG_IS_VALID))	1110	if (!(bg_flags & BG_IS_VALID))
1420	{	1111	{
…		…
1457	#endif	1148	#endif
1458	}	1149	}
1459		1150
1460	#endif /* HAVE_BG_PIXMAP */	1151	#endif /* HAVE_BG_PIXMAP */
1461		1152
1462	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	1153	#ifdef ENABLE_TRANSPARENCY
1463	/* taken from aterm-0.4.2 */	1154	/* based on code from aterm-0.4.2 */
1464		1155
1465	static void	1156	static inline void
1466	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)	1157	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1467	{	1158	{
		1159	for (int i = 0; i <= mask >> sh; i++)
		1160	{
		1161	uint32_t tmp;
		1162	tmp = i * high;
		1163	tmp += (mask >> sh) * low;
		1164	lookup[i] = (tmp / 0xffff) << sh;
		1165	}
		1166	}
		1167
		1168	void
		1169	rxvt_term::tint_ximage (XImage *ximage)
		1170	{
		1171	unsigned int size_r, size_g, size_b;
1468	int sh_r, sh_g, sh_b;	1172	int sh_r, sh_g, sh_b;
1469	uint32_t mask_r, mask_g, mask_b;	1173	uint32_t mask_r, mask_g, mask_b;
1470	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;	1174	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1471	rgba low;	1175	unsigned short low;
1472	rgba high;
1473	int i;
1474	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;	1176	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1475		1177
1476	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;	1178	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1477		1179
1478	/* for convenience */	1180	/* for convenience */
1479	mask_r = visual->red_mask;	1181	mask_r = visual->red_mask;
1480	mask_g = visual->green_mask;	1182	mask_g = visual->green_mask;
1481	mask_b = visual->blue_mask;	1183	mask_b = visual->blue_mask;
1482		1184
1483	/* boring lookup table pre-initialization */	1185	/* boring lookup table pre-initialization */
1484	switch (ximage->depth)	1186	sh_r = ecb_ctz32 (mask_r);
1485	{	1187	sh_g = ecb_ctz32 (mask_g);
1486	case 15:	1188	sh_b = ecb_ctz32 (mask_b);
1487	if ((mask_r != 0x7c00) ||	1189
1488	(mask_g != 0x03e0) ||	1190	size_r = mask_r >> sh_r;
1489	(mask_b != 0x001f))	1191	size_g = mask_g >> sh_g;
		1192	size_b = mask_b >> sh_b;
		1193
		1194	if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1490	return;	1195	return;
1491	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));	1196
		1197	lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1492	lookup_r = lookup;	1198	lookup_r = lookup;
1493	lookup_g = lookup+32;	1199	lookup_g = lookup + size_r;
1494	lookup_b = lookup+32+32;	1200	lookup_b = lookup + size_r + size_g;
1495	sh_r = 10;	1201
1496	sh_g = 5;	1202	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1497	sh_b = 0;	1203
1498	break;	1204	if (bg_flags & BG_TINT_SET)
1499	case 16:	1205	tint.get (c);
1500	if ((mask_r != 0xf800) ||
1501	(mask_g != 0x07e0) ||
1502	(mask_b != 0x001f))
1503	return;
1504	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1505	lookup_r = lookup;
1506	lookup_g = lookup+32;
1507	lookup_b = lookup+32+64;
1508	sh_r = 11;
1509	sh_g = 5;
1510	sh_b = 0;
1511	break;
1512	case 24:
1513	if ((mask_r != 0xff0000) ||
1514	(mask_g != 0x00ff00) ||
1515	(mask_b != 0x0000ff))
1516	return;
1517	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1518	lookup_r = lookup;
1519	lookup_g = lookup+256;
1520	lookup_b = lookup+256+256;
1521	sh_r = 16;
1522	sh_g = 8;
1523	sh_b = 0;
1524	break;
1525	case 32:
1526	if ((mask_r != 0xff0000) ||
1527	(mask_g != 0x00ff00) ||
1528	(mask_b != 0x0000ff))
1529	return;
1530	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1531	lookup_r = lookup;
1532	lookup_g = lookup+256;
1533	lookup_b = lookup+256+256;
1534	sh_r = 16;
1535	sh_g = 8;
1536	sh_b = 0;
1537	break;
1538	default:
1539	return; /* we do not support this color depth */
1540	}
1541		1206
1542	/* prepare limits for color transformation (each channel is handled separately) */	1207	/* prepare limits for color transformation (each channel is handled separately) */
1543	if (shade > 100)	1208	if (shade > 100)
1544	{	1209	{
1545	shade = 200 - shade;
1546
1547	high.r = c.r * shade / 100;
1548	high.g = c.g * shade / 100;
1549	high.b = c.b * shade / 100;
1550
1551	low.r = 65535 * (100 - shade) / 100;	1210	c.r = c.r * (200 - shade) / 100;
1552	low.g = 65535 * (100 - shade) / 100;	1211	c.g = c.g * (200 - shade) / 100;
1553	low.b = 65535 * (100 - shade) / 100;	1212	c.b = c.b * (200 - shade) / 100;
		1213
		1214	low = 0xffff * (shade - 100) / 100;
1554	}	1215	}
1555	else	1216	else
1556	{	1217	{
1557	high.r = c.r * shade / 100;	1218	c.r = c.r * shade / 100;
1558	high.g = c.g * shade / 100;	1219	c.g = c.g * shade / 100;
1559	high.b = c.b * shade / 100;	1220	c.b = c.b * shade / 100;
1560		1221
1561	low.r = low.g = low.b = 0;	1222	low = 0;
1562	}	1223	}
1563		1224
1564	/* fill our lookup tables */	1225	/* fill our lookup tables */
1565	for (i = 0; i <= mask_r>>sh_r; i++)	1226	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1566	{	1227	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1567	uint32_t tmp;	1228	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1568	tmp = i * high.r;
1569	tmp += (mask_r>>sh_r) * low.r;
1570	lookup_r[i] = (tmp/65535)<<sh_r;
1571	}
1572	for (i = 0; i <= mask_g>>sh_g; i++)
1573	{
1574	uint32_t tmp;
1575	tmp = i * high.g;
1576	tmp += (mask_g>>sh_g) * low.g;
1577	lookup_g[i] = (tmp/65535)<<sh_g;
1578	}
1579	for (i = 0; i <= mask_b>>sh_b; i++)
1580	{
1581	uint32_t tmp;
1582	tmp = i * high.b;
1583	tmp += (mask_b>>sh_b) * low.b;
1584	lookup_b[i] = (tmp/65535)<<sh_b;
1585	}
1586		1229
1587	/* apply table to input image (replacing colors by newly calculated ones) */	1230	/* apply table to input image (replacing colors by newly calculated ones) */
1588	if (ximage->bits_per_pixel == 32	1231	if (ximage->bits_per_pixel == 32
1589	&& (ximage->depth == 24 || ximage->depth == 32)
1590	&& ximage->byte_order == host_byte_order)	1232	&& ximage->byte_order == host_byte_order)
1591	{	1233	{
1592	uint32_t *p1, *pf, *p, *pl;	1234	char *line = ximage->data;
1593	p1 = (uint32_t *) ximage->data;
1594	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1595		1235
1596	while (p1 < pf)	1236	for (int y = 0; y < ximage->height; y++)
1597	{
1598	p = p1;
1599	pl = p1 + ximage->width;
1600	for (; p < pl; p++)
1601	{	1237	{
1602	*p = lookup_r[(*p & 0xff0000) >> 16] |	1238	uint32_t *p = (uint32_t *)line;
1603	lookup_g[(*p & 0x00ff00) >> 8] |	1239	for (int x = 0; x < ximage->width; x++)
1604	lookup_b[(*p & 0x0000ff)] |
1605	(*p & 0xff000000);
1606	}	1240	{
1607	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);	1241	*p = lookup_r[(*p & mask_r) >> sh_r] |
		1242	lookup_g[(*p & mask_g) >> sh_g] |
		1243	lookup_b[(*p & mask_b) >> sh_b];
		1244	p++;
		1245	}
		1246	line += ximage->bytes_per_line;
1608	}	1247	}
1609	}	1248	}
1610	else	1249	else
1611	{	1250	{
1612	for (int y = 0; y < ximage->height; y++)	1251	for (int y = 0; y < ximage->height; y++)
…		…
1620	}	1259	}
1621	}	1260	}
1622		1261
1623	free (lookup);	1262	free (lookup);
1624	}	1263	}
1625	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1264	#endif /* ENABLE_TRANSPARENCY */

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