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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.161 by sf-exg, Thu Aug 11 08:39:10 2011 UTC vs.
Revision 1.218 by sf-exg, Mon May 21 12:29:22 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
195	bool	150	bool
196	rxvt_term::bg_set_geometry (const char *geom, bool update)	151	rxvt_image::set_geometry (const char *geom, bool update)
197	{	152	{
198	bool changed = false;	153	bool changed = false;
199	int geom_flags = 0;	154	int geom_flags = 0;
200	int x = 0, y = 0;	155	int x = h_align;
		156	int y = v_align;
201	unsigned int w = 0, h = 0;	157	unsigned int w = h_scale;
202	unsigned int n;	158	unsigned int h = v_scale;
203	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	159	unsigned long new_flags = 0;
204	const char *ops;
205		160
206	if (geom == NULL)	161	if (geom == NULL)
207	return false;	162	return false;
208		163
209	char str[256];	164	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	{	165	{
226	/* we have geometry string - let's handle it prior to applying ops */	166	char **arr = rxvt_strsplit (':', geom);
		167
		168	for (int i = 0; arr[i]; i++)
		169	{
		170	if (!strcasecmp (arr[i], "style=tiled"))
		171	{
		172	new_flags = IM_TILE;
		173	w = h = noScale;
		174	x = y = 0;
		175	geom_flags = WidthValue|HeightValue|XValue|YValue;
		176	}
		177	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
		178	{
		179	new_flags = IM_KEEP_ASPECT;
		180	w = h = windowScale;
		181	x = y = centerAlign;
		182	geom_flags = WidthValue|HeightValue|XValue|YValue;
		183	}
		184	else if (!strcasecmp (arr[i], "style=stretched"))
		185	{
		186	new_flags = 0;
		187	w = h = windowScale;
		188	geom_flags = WidthValue|HeightValue;
		189	}
		190	else if (!strcasecmp (arr[i], "style=centered"))
		191	{
		192	new_flags = 0;
		193	w = h = noScale;
		194	x = y = centerAlign;
		195	geom_flags = WidthValue|HeightValue|XValue|YValue;
		196	}
		197	else if (!strcasecmp (arr[i], "style=root-tiled"))
		198	{
		199	new_flags = IM_TILE|IM_ROOT_ALIGN;
		200	w = h = noScale;
		201	geom_flags = WidthValue|HeightValue;
		202	}
		203	else if (!strcasecmp (arr[i], "op=tile"))
		204	new_flags |= IM_TILE;
		205	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		206	new_flags |= IM_KEEP_ASPECT;
		207	else if (!strcasecmp (arr[i], "op=root-align"))
		208	new_flags |= IM_ROOT_ALIGN;
		209
		210	// deprecated
		211	else if (!strcasecmp (arr[i], "tile"))
		212	{
		213	new_flags |= IM_TILE;
		214	w = h = noScale;
		215	geom_flags |= WidthValue|HeightValue;
		216	}
		217	else if (!strcasecmp (arr[i], "propscale"))
		218	{
		219	new_flags |= IM_KEEP_ASPECT;
		220	w = h = windowScale;
		221	geom_flags |= WidthValue|HeightValue;
		222	}
		223	else if (!strcasecmp (arr[i], "hscale"))
		224	{
		225	new_flags |= IM_TILE;
		226	w = windowScale;
		227	h = noScale;
		228	geom_flags |= WidthValue|HeightValue;
		229	}
		230	else if (!strcasecmp (arr[i], "vscale"))
		231	{
		232	new_flags |= IM_TILE;
		233	h = windowScale;
		234	w = noScale;
		235	geom_flags |= WidthValue|HeightValue;
		236	}
		237	else if (!strcasecmp (arr[i], "scale"))
		238	{
		239	w = h = windowScale;
		240	geom_flags |= WidthValue|HeightValue;
		241	}
		242	else if (!strcasecmp (arr[i], "auto"))
		243	{
		244	w = h = windowScale;
		245	x = y = centerAlign;
		246	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		247	}
		248	else if (!strcasecmp (arr[i], "root"))
		249	{
		250	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		251	w = h = noScale;
		252	geom_flags |= WidthValue|HeightValue;
		253	}
		254
		255	else
227	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	256	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
228	} /* done parsing geometry string */	257	} /* done parsing ops */
		258
		259	rxvt_free_strsplit (arr);
		260	}
		261
		262	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
229		263
230	if (!update)	264	if (!update)
231	{	265	{
232	if (!(geom_flags & XValue))	266	if (!(geom_flags & XValue))
233	x = y = defaultAlign;	267	x = y = defaultAlign;
…		…
238	w = h = defaultScale;	272	w = h = defaultScale;
239	else if (!(geom_flags & HeightValue))	273	else if (!(geom_flags & HeightValue))
240	h = w;	274	h = w;
241	else if (!(geom_flags & WidthValue))	275	else if (!(geom_flags & WidthValue))
242	w = h;	276	w = h;
243
244	geom_flags |= WidthValue|HeightValue|XValue|YValue;
245	}
246
247	if (ops)
248	{	277	}
249	char **arr = rxvt_strsplit (':', ops + 1);
250		278
251	for (int i = 0; arr[i]; i++)	279	clamp_it (x, -100, 200);
252	{	280	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		281
292	// deprecated	282	if (flags != new_flags
293	else if (!strcasecmp (arr[i], "tile"))	283	|| h_scale != w
294	{	284	|| v_scale != h
295	new_flags |= BG_TILE;	285	|| h_align != x
296	w = h = noScale;	286	|| 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	w = windowScale;
306	h = noScale;
307	geom_flags |= WidthValue|HeightValue;
308	}
309	else if (!strcasecmp (arr[i], "vscale"))
310	{
311	h = windowScale;
312	w = noScale;
313	geom_flags |= WidthValue|HeightValue;
314	}
315	else if (!strcasecmp (arr[i], "scale"))
316	{
317	w = h = windowScale;
318	geom_flags |= WidthValue|HeightValue;
319	}
320	else if (!strcasecmp (arr[i], "auto"))
321	{
322	w = h = windowScale;
323	x = y = centerAlign;
324	geom_flags |= WidthValue|HeightValue|XValue|YValue;
325	}
326	else if (!strcasecmp (arr[i], "root"))
327	{
328	new_flags |= BG_TILE|BG_ROOT_ALIGN;
329	w = h = noScale;
330	geom_flags |= WidthValue|HeightValue;
331	}
332	} /* done parsing ops */
333
334	rxvt_free_strsplit (arr);
335	}	287	{
336
337	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
338	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
339	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
340	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
341
342	if (new_flags != bg_flags)
343	{
344	bg_flags = new_flags;	288	flags = new_flags;
		289	h_scale = w;
		290	v_scale = h;
		291	h_align = x;
		292	v_align = y;
345	changed = true;	293	changed = true;
346	}	294	}
347		295
		296	if (!(flags & IM_TILE)
		297	|| h_scale || v_scale
		298	|| (!(flags & IM_ROOT_ALIGN) && (h_align || v_align)))
		299	flags |= IM_IS_SIZE_SENSITIVE;
		300	else
		301	flags &= ~IM_IS_SIZE_SENSITIVE;
		302
348	return changed;	303	return changed;
349	}	304	}
350		305
351	void	306	void
352	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	307	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
353	{	308	{
		309	int image_width = image.width ();
		310	int image_height = image.height ();
354	int target_width = szHint.width;	311	int target_width = szHint.width;
355	int target_height = szHint.height;	312	int target_height = szHint.height;
		313	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		314	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
356		315
357	if (bg_flags & BG_PROP_SCALE)	316	w = h_scale * target_width / 100;
		317	h = v_scale * target_height / 100;
		318
		319	if (image.flags & IM_KEEP_ASPECT)
358	{	320	{
359	float scale = (float)target_width / image_width;	321	float scale = (float)w / image_width;
360	min_it (scale, (float)target_height / image_height);	322	min_it (scale, (float)h / image_height);
361	w = image_width * scale + 0.5;	323	w = image_width * scale + 0.5;
362	h = image_height * scale + 0.5;	324	h = image_height * scale + 0.5;
363	}	325	}
364	else
365	{
366	w = h_scale * target_width / 100;
367	h = v_scale * target_height / 100;
368	}
369		326
370	if (!w) w = image_width;	327	if (!w) w = image_width;
371	if (!h) h = image_height;	328	if (!h) h = image_height;
372		329
373	if (bg_flags & BG_ROOT_ALIGN)	330	if (image.flags & IM_ROOT_ALIGN)
374	{	331	{
375	x = -target_x;	332	x = -target_x;
376	y = -target_y;	333	y = -target_y;
377	}	334	}
378	else	335	else
379	{	336	{
380	x = make_align_position (h_align, target_width, w);	337	x = make_align_position (image.h_align, target_width, w);
381	y = make_align_position (v_align, target_height, h);	338	y = make_align_position (image.v_align, target_height, h);
382	}
383
384	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
385	if (!(bg_flags & BG_TILE)
386	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
387	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
388	|| w > target_width || h > target_height)
389	bg_flags |= BG_IS_SIZE_SENSITIVE;
390	}
391
392	# ifdef HAVE_AFTERIMAGE
393	bool
394	rxvt_term::render_image (unsigned long tr_flags)
395	{
396	init_asv ();
397
398	ASImage *background = NULL;
399	ARGB32 background_tint = TINT_LEAVE_SAME;
400
401	# ifdef ENABLE_TRANSPARENCY
402	if (tr_flags)
403	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
404
405	if (tr_flags & BG_NEEDS_TINT)
406	{	339	}
407	ShadingInfo as_shade;	340	}
408	as_shade.shading = shade;
409		341
410	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	342	# ifdef HAVE_PIXBUF
411	if (bg_flags & BG_TINT_SET)	343	bool
412	tint.get (c);	344	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
413	as_shade.tintColor.red = c.r;	345	int src_x, int src_y, int dst_x, int dst_y,
414	as_shade.tintColor.green = c.g;	346	unsigned int width, unsigned int height, bool argb)
415	as_shade.tintColor.blue = c.b;	347	{
		348	XImage *ximage;
		349	char *line;
		350	int width_r, width_g, width_b, width_a;
		351	int sh_r, sh_g, sh_b, sh_a;
		352	uint32_t red_mask, green_mask, blue_mask, alpha_mask;
		353	int rowstride;
		354	int channels;
		355	unsigned char *row;
416		356
417	background_tint = shading2tint32 (&as_shade);	357	if (visual->c_class != TrueColor)
		358	return false;
		359
		360	if (argb)
418	}	361	{
419		362	red_mask = 0xff << 16;
420	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)	363	green_mask = 0xff << 8;
		364	blue_mask = 0xff;
		365	alpha_mask = 0xff << 24;
421	{	366	}
422	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,	367	else
423	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,	368	{
424	100, ASIMAGE_QUALITY_DEFAULT);	369	red_mask = visual->red_mask;
		370	green_mask = visual->green_mask;
		371	blue_mask = visual->blue_mask;
		372	#if XRENDER
		373	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
425	if (tmp)	374	if (format)
		375	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
		376	else
		377	#endif
		378	alpha_mask = 0;
		379	}
		380
		381	width_r = ecb_popcount32 (red_mask);
		382	width_g = ecb_popcount32 (green_mask);
		383	width_b = ecb_popcount32 (blue_mask);
		384	width_a = ecb_popcount32 (alpha_mask);
		385
		386	if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
		387	return false;
		388
		389	sh_r = ecb_ctz32 (red_mask);
		390	sh_g = ecb_ctz32 (green_mask);
		391	sh_b = ecb_ctz32 (blue_mask);
		392	sh_a = ecb_ctz32 (alpha_mask);
		393
		394	if (width > 32767 || height > 32767)
		395	return false;
		396
		397	ximage = XCreateImage (dpy, visual, argb ? 32 : depth, ZPixmap, 0, 0,
		398	width, height, 32, 0);
		399	if (!ximage)
		400	return false;
		401
		402	if (height > INT_MAX / ximage->bytes_per_line
		403	|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
		404	{
		405	XDestroyImage (ximage);
		406	return false;
		407	}
		408
		409	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		410
		411	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
		412	channels = gdk_pixbuf_get_n_channels (pixbuf);
		413	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
		414	line = ximage->data;
		415
		416	rgba c (0, 0, 0);
		417
		418	if (channels == 4 && alpha_mask == 0)
		419	{
		420	pix_colors[Color_bg].get (c);
		421	c.r >>= 8;
		422	c.g >>= 8;
		423	c.b >>= 8;
		424	}
		425
		426	for (int y = 0; y < height; y++)
		427	{
		428	for (int x = 0; x < width; x++)
		429	{
		430	unsigned char *pixel = row + x * channels;
		431	uint32_t value;
		432	unsigned char r, g, b, a;
		433
		434	if (channels == 4)
426	{	435	{
427	destroy_asimage (&background);	436	a = pixel[3];
428	background = tmp;	437	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
		438	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
		439	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
		440	}
		441	else
		442	{
		443	a = 0xff;
		444	r = pixel[0];
		445	g = pixel[1];
		446	b = pixel[2];
		447	}
		448
		449	value = ((r >> (8 - width_r)) << sh_r)
		450	| ((g >> (8 - width_g)) << sh_g)
		451	| ((b >> (8 - width_b)) << sh_b)
		452	| ((a >> (8 - width_a)) << sh_a);
		453
		454	if (ximage->bits_per_pixel == 32)
		455	((uint32_t *)line)[x] = value;
		456	else
		457	XPutPixel (ximage, x, y, value);
429	}	458	}
430	}
431	# endif
432		459
433	ASImage *result = 0;	460	row += rowstride;
		461	line += ximage->bytes_per_line;
		462	}
		463
		464	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
		465	XDestroyImage (ximage);
		466	return true;
		467	}
		468
		469	bool
		470	rxvt_term::render_image (rxvt_image &image)
		471	{
		472	GdkPixbuf *pixbuf = image.pixbuf;
		473	if (!pixbuf)
		474	return false;
		475
		476	bool need_blend = bg_flags & BG_IS_VALID;
		477
		478	if (need_blend
		479	&& !(bg_flags & BG_HAS_RENDER))
		480	return false;
		481
		482	GdkPixbuf *result;
		483
		484	int image_width = gdk_pixbuf_get_width (pixbuf);
		485	int image_height = gdk_pixbuf_get_height (pixbuf);
434		486
435	int target_width = szHint.width;	487	int target_width = szHint.width;
436	int target_height = szHint.height;	488	int target_height = szHint.height;
437	int new_pmap_width = target_width;	489	int new_pmap_width = target_width;
438	int new_pmap_height = target_height;	490	int new_pmap_height = target_height;
…		…
440	int x = 0;	492	int x = 0;
441	int y = 0;	493	int y = 0;
442	int w = 0;	494	int w = 0;
443	int h = 0;	495	int h = 0;
444		496
445	if (original_asim)	497	get_image_geometry (image, w, h, x, y);
446	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
447		498
448	if (!original_asim	499	if (!(image.flags & IM_ROOT_ALIGN)
449	|| (!(bg_flags & BG_ROOT_ALIGN)
450	&& (x >= target_width	500	&& (x >= target_width
451	|| y >= target_height	501	|| y >= target_height
452	|| (x + w <= 0)	502	|| x + w <= 0
453	|| (y + h <= 0))))	503	|| y + h <= 0))
		504	return false;
		505
		506	result = pixbuf;
		507
		508	if (w != image_width
		509	|| h != image_height)
		510	{
		511	result = gdk_pixbuf_scale_simple (pixbuf,
		512	w, h,
		513	GDK_INTERP_BILINEAR);
454	{	514	}
455	if (background)
456	{
457	new_pmap_width = background->width;
458	new_pmap_height = background->height;
459	result = background;
460		515
461	if (background_tint != TINT_LEAVE_SAME)	516	if (!result)
		517	return false;
		518
		519	bool ret = false;
		520
		521	XGCValues gcv;
		522	GC gc;
		523	Pixmap tmp_pixmap;
		524
		525	image_width = gdk_pixbuf_get_width (result);
		526	image_height = gdk_pixbuf_get_height (result);
		527
		528	if (need_blend)
		529	tmp_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, 32);
		530	else
		531	{
		532	if (image.flags & IM_TILE)
462	{	533	{
463	ASImage *tmp = tile_asimage (asv, background, 0, 0,	534	new_pmap_width = min (image_width, target_width);
464	target_width, target_height, background_tint,	535	new_pmap_height = min (image_height, target_height);
465	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
466	if (tmp)
467	result = tmp;
468	}
469	}	536	}
470	else
471	new_pmap_width = new_pmap_height = 0;
472	}
473	else
474	{
475	result = original_asim;
476		537
477	if ((w != original_asim->width)
478	|| (h != original_asim->height))
479	{
480	result = scale_asimage (asv, original_asim,
481	w, h,
482	background ? ASA_ASImage : ASA_XImage,
483	100, ASIMAGE_QUALITY_DEFAULT);
484	}
485
486	if (background == NULL)
487	{
488	if (bg_flags & BG_TILE)
489	{
490	/* if tiling - pixmap has to be sized exactly as the image,
491	but there is no need to make it bigger than the window! */
492	new_pmap_width = min (result->width, target_width);
493	new_pmap_height = min (result->height, target_height);
494
495	/* we also need to tile our image in both directions */
496	ASImage *tmp = tile_asimage (asv, result,
497	(int)result->width - x,
498	(int)result->height - y,
499	new_pmap_width,
500	new_pmap_height,
501	TINT_LEAVE_SAME, ASA_XImage,
502	100, ASIMAGE_QUALITY_DEFAULT);
503	if (tmp)
504	{
505	if (result != original_asim)
506	destroy_asimage (&result);
507
508	result = tmp;
509	}
510	}
511	}
512	else
513	{
514	/* if blending background and image - pixmap has to be sized same as target window */
515	ASImageLayer *layers = create_image_layers (2);
516
517	layers[0].im = background;
518	layers[0].clip_width = target_width;
519	layers[0].clip_height = target_height;
520	layers[0].tint = background_tint;
521	layers[1].im = result;
522
523	if (bg_flags & BG_TILE)
524	{
525	/* tile horizontally */
526	while (x > 0) x -= (int)result->width;
527	layers[1].dst_x = x;
528	layers[1].clip_width = result->width+target_width;
529	}
530	else
531	{
532	/* clip horizontally */
533	layers[1].dst_x = x;
534	layers[1].clip_width = result->width;
535	}
536
537	if (bg_flags & BG_TILE)
538	{
539	while (y > 0) y -= (int)result->height;
540	layers[1].dst_y = y;
541	layers[1].clip_height = result->height + target_height;
542	}
543	else
544	{
545	layers[1].dst_y = y;
546	layers[1].clip_height = result->height;
547	}
548
549	if (rs[Rs_blendtype])
550	{
551	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
552	if (layers[1].merge_scanlines == NULL)
553	layers[1].merge_scanlines = alphablend_scanlines;
554	}
555
556	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
557	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
558
559	if (tmp)
560	{
561	if (result != original_asim)
562	destroy_asimage (&result);
563
564	result = tmp;
565	}
566
567	free (layers);
568	}
569	}
570
571	bool ret = false;
572
573	if (result)
574	{
575	XGCValues gcv;
576	GC gc;
577
578	/* create Pixmap */
579	if (bg_pixmap == None	538	if (bg_pixmap == None
580	|| bg_pmap_width != new_pmap_width	539	|| bg_pmap_width != new_pmap_width
581	|| bg_pmap_height != new_pmap_height)	540	|| bg_pmap_height != new_pmap_height)
582	{	541	{
583	if (bg_pixmap)	542	if (bg_pixmap)
584	XFreePixmap (dpy, bg_pixmap);	543	XFreePixmap (dpy, bg_pixmap);
585	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);	544	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
586	bg_pmap_width = new_pmap_width;	545	bg_pmap_width = new_pmap_width;
587	bg_pmap_height = new_pmap_height;	546	bg_pmap_height = new_pmap_height;
588	}	547	}
589	/* fill with background color (if result's not completely overlapping it) */
590	gcv.foreground = pix_colors[Color_bg];
591	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
592		548
593	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
594	int dst_width = result->width, dst_height = result->height;
595	if (background == NULL)
596	{
597	if (!(bg_flags & BG_TILE))
598	{
599	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
600	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
601	}
602
603	if (dst_x > 0 || dst_y > 0
604	|| dst_x + dst_width < new_pmap_width
605	|| dst_y + dst_height < new_pmap_height)
606	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
607	}
608
609	/* put result on pixmap */
610	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
611	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
612
613	if (result != background && result != original_asim)
614	destroy_asimage (&result);
615
616	XFreeGC (dpy, gc);
617
618	ret = true;
619	}
620
621	if (background)
622	destroy_asimage (&background);
623
624	return ret;
625	}
626	# endif /* HAVE_AFTERIMAGE */
627
628	# ifdef HAVE_PIXBUF
629	bool
630	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
631	int src_x, int src_y, int dst_x, int dst_y,
632	unsigned int width, unsigned int height)
633	{
634	XImage *ximage;
635	char *data, *line;
636	int bytes_per_pixel;
637	int width_r, width_g, width_b;
638	int sh_r, sh_g, sh_b;
639	int rowstride;
640	int channels;
641	unsigned char *row;
642
643	if (visual->c_class != TrueColor)
644	return false;
645
646	if (depth == 24 || depth == 32)
647	bytes_per_pixel = 4;
648	else if (depth == 15 || depth == 16)
649	bytes_per_pixel = 2;
650	else
651	return false;
652
653	width_r = ecb_popcount32 (visual->red_mask);
654	width_g = ecb_popcount32 (visual->green_mask);
655	width_b = ecb_popcount32 (visual->blue_mask);
656
657	if (width_r > 8 || width_g > 8 || width_b > 8)
658	return false;
659
660	sh_r = ecb_ctz32 (visual->red_mask);
661	sh_g = ecb_ctz32 (visual->green_mask);
662	sh_b = ecb_ctz32 (visual->blue_mask);
663
664	if (width > INT_MAX / height / bytes_per_pixel)
665	return false;
666
667	data = (char *)malloc (width * height * bytes_per_pixel);
668	if (!data)
669	return false;
670
671	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
672	width, height, bytes_per_pixel * 8, 0);
673	if (!ximage)
674	{
675	free (data);
676	return false;
677	}
678
679	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
680
681	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
682	channels = gdk_pixbuf_get_n_channels (pixbuf);
683	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
684	line = data;
685
686	for (int y = 0; y < height; y++)
687	{
688	for (int x = 0; x < width; x++)
689	{
690	unsigned char *pixel = row + x * channels;
691	uint32_t value;
692
693	value = ((pixel[0] >> (8 - width_r)) << sh_r)
694	| ((pixel[1] >> (8 - width_g)) << sh_g)
695	| ((pixel[2] >> (8 - width_b)) << sh_b);
696
697	if (bytes_per_pixel == 4)
698	((uint32_t *)line)[x] = value;
699	else
700	((uint16_t *)line)[x] = value;
701	}
702
703	row += rowstride;
704	line += ximage->bytes_per_line;
705	}
706
707	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
708	XDestroyImage (ximage);
709	return true;
710	}
711
712	bool
713	rxvt_term::render_image (unsigned long tr_flags)
714	{
715	if (!pixbuf)
716	return false;
717
718	if (tr_flags
719	&& !(bg_flags & BG_HAS_RENDER))
720	return false;
721
722	GdkPixbuf *result;
723
724	int image_width = gdk_pixbuf_get_width (pixbuf);
725	int image_height = gdk_pixbuf_get_height (pixbuf);
726
727	int target_width = szHint.width;
728	int target_height = szHint.height;
729	int new_pmap_width = target_width;
730	int new_pmap_height = target_height;
731
732	int x = 0;
733	int y = 0;
734	int w = 0;
735	int h = 0;
736
737	get_image_geometry (image_width, image_height, w, h, x, y);
738
739	if (!(bg_flags & BG_ROOT_ALIGN)
740	&& (x >= target_width
741	|| y >= target_height
742	|| (x + w <= 0)
743	|| (y + h <= 0)))
744	return false;
745
746	result = pixbuf;
747
748	if ((w != image_width)
749	|| (h != image_height))
750	{
751	result = gdk_pixbuf_scale_simple (pixbuf,
752	w, h,
753	GDK_INTERP_BILINEAR);
754	}
755
756	if (!result)
757	return false;
758
759	bool ret = false;
760
761	XGCValues gcv;
762	GC gc;
763	Pixmap root_pmap;
764
765	image_width = gdk_pixbuf_get_width (result);
766	image_height = gdk_pixbuf_get_height (result);
767
768	if (tr_flags)
769	{
770	root_pmap = bg_pixmap;	549	tmp_pixmap = bg_pixmap;
771	bg_pixmap = None;
772	}
773	else
774	{
775	if (bg_flags & BG_TILE)
776	{
777	new_pmap_width = min (image_width, target_width);
778	new_pmap_height = min (image_height, target_height);
779	}
780	}
781
782	if (bg_pixmap == None
783	|| bg_pmap_width != new_pmap_width
784	|| bg_pmap_height != new_pmap_height)
785	{
786	if (bg_pixmap)
787	XFreePixmap (dpy, bg_pixmap);
788	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
789	bg_pmap_width = new_pmap_width;
790	bg_pmap_height = new_pmap_height;
791	}	550	}
792		551
793	gcv.foreground = pix_colors[Color_bg];	552	gcv.foreground = pix_colors[Color_bg];
794	gc = XCreateGC (dpy, vt, GCForeground, &gcv);	553	gc = XCreateGC (dpy, tmp_pixmap, GCForeground, &gcv);
795		554
796	if (gc)	555	if (gc)
797	{	556	{
798	if (bg_flags & BG_TILE)	557	if (image.flags & IM_TILE)
799	{	558	{
800	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);	559	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, need_blend ? 32 : depth);
801	pixbuf_to_pixmap (result, tile, gc,	560	pixbuf_to_pixmap (result, tile, gc,
802	0, 0,	561	0, 0,
803	0, 0,	562	0, 0,
804	image_width, image_height);	563	image_width, image_height, need_blend);
805		564
806	gcv.tile = tile;	565	gcv.tile = tile;
807	gcv.fill_style = FillTiled;	566	gcv.fill_style = FillTiled;
808	gcv.ts_x_origin = x;	567	gcv.ts_x_origin = x;
809	gcv.ts_y_origin = y;	568	gcv.ts_y_origin = y;
810	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	569	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
811		570
812	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	571	XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
813	XFreePixmap (dpy, tile);	572	XFreePixmap (dpy, tile);
814	}	573	}
815	else	574	else
816	{	575	{
817	int src_x, src_y, dst_x, dst_y;	576	int src_x, src_y, dst_x, dst_y;
…		…
821	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);	580	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
822		581
823	if (dst_x > 0 || dst_y > 0	582	if (dst_x > 0 || dst_y > 0
824	|| dst_x + dst_width < new_pmap_width	583	|| dst_x + dst_width < new_pmap_width
825	|| dst_y + dst_height < new_pmap_height)	584	|| dst_y + dst_height < new_pmap_height)
826	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	585	XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
827		586
828	if (dst_x < new_pmap_width && dst_y < new_pmap_height)	587	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
829	pixbuf_to_pixmap (result, bg_pixmap, gc,	588	pixbuf_to_pixmap (result, tmp_pixmap, gc,
830	src_x, src_y,	589	src_x, src_y,
831	dst_x, dst_y,	590	dst_x, dst_y,
832	dst_width, dst_height);	591	dst_width, dst_height, need_blend);
833	}	592	}
834		593
835	#if XRENDER	594	#if XRENDER
836	if (tr_flags)	595	if (need_blend)
837	{	596	{
838	XRenderPictureAttributes pa;	597	XRenderPictFormat *argb_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
839
840	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	598	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		599
841	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	600	Picture src = XRenderCreatePicture (dpy, tmp_pixmap, argb_format, 0, 0);
842		601
843	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
844	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	602	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
845		603
846	pa.repeat = True;	604	Picture mask = create_xrender_mask (dpy, vt, False, False);
847	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
848	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
849	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
850	XFreePixmap (dpy, mask_pmap);
851		605
852	XRenderColor mask_c;	606	XRenderColor mask_c;
853		607
854	mask_c.alpha = 0x8000;	608	mask_c.alpha = 0x8000;
855	mask_c.red = 0;	609	mask_c.red =
856	mask_c.green = 0;	610	mask_c.green =
857	mask_c.blue = 0;	611	mask_c.blue = 0;
858	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);	612	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		613
859	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);	614	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
860		615
861	XRenderFreePicture (dpy, src);	616	XRenderFreePicture (dpy, src);
862	XRenderFreePicture (dpy, dst);	617	XRenderFreePicture (dpy, dst);
863	XRenderFreePicture (dpy, mask);	618	XRenderFreePicture (dpy, mask);
…		…
870	}	625	}
871		626
872	if (result != pixbuf)	627	if (result != pixbuf)
873	g_object_unref (result);	628	g_object_unref (result);
874		629
875	if (tr_flags)	630	if (need_blend)
876	XFreePixmap (dpy, root_pmap);	631	XFreePixmap (dpy, tmp_pixmap);
877		632
878	return ret;	633	return ret;
879	}	634	}
880	# endif /* HAVE_PIXBUF */	635	# endif /* HAVE_PIXBUF */
881		636
882	bool	637	bool
883	rxvt_term::bg_set_file (const char *file)	638	rxvt_image::set_file (const char *file)
884	{	639	{
885	if (!file || !*file)	640	if (!file || !*file)
886	return false;	641	return false;
887		642
		643	bool ret = false;
888	if (const char *p = strchr (file, ';'))	644	const char *p = strchr (file, ';');
		645
		646	if (p)
889	{	647	{
890	size_t len = p - file;	648	size_t len = p - file;
891	char *f = rxvt_temp_buf<char> (len + 1);	649	char *f = rxvt_temp_buf<char> (len + 1);
892	memcpy (f, file, len);	650	memcpy (f, file, len);
893	f[len] = '\0';	651	f[len] = '\0';
894	file = f;	652	file = f;
895	}	653	}
896		654
897	# ifdef HAVE_AFTERIMAGE
898	if (!asimman)
899	asimman = create_generic_imageman (rs[Rs_path]);
900	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
901	if (image)
902	{
903	if (original_asim)
904	safe_asimage_destroy (original_asim);
905	original_asim = image;
906	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
907	return true;
908	}
909	# endif
910
911	# ifdef HAVE_PIXBUF	655	# ifdef HAVE_PIXBUF
912	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	656	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
913	if (image)	657	if (image)
914	{	658	{
915	if (pixbuf)	659	if (pixbuf)
916	g_object_unref (pixbuf);	660	g_object_unref (pixbuf);
917	pixbuf = image;	661	pixbuf = image;
918	bg_flags |= BG_IS_FROM_FILE;
919	return true;	662	ret = true;
920	}	663	}
921	# endif	664	# endif
922		665
		666	if (ret)
		667	{
		668	flags = IM_IS_SET | IM_IS_SIZE_SENSITIVE;
		669	h_scale = v_scale = defaultScale;
		670	h_align = v_align = defaultAlign;
		671
		672	if (p)
		673	set_geometry (p + 1);
		674	}
		675
923	return false;	676	return ret;
924	}	677	}
925		678
926	# endif /* BG_IMAGE_FROM_FILE */	679	# endif /* BG_IMAGE_FROM_FILE */
927		680
928	# ifdef ENABLE_TRANSPARENCY	681	# ifdef ENABLE_TRANSPARENCY
929	bool
930	rxvt_term::bg_set_transparent ()
931	{
932	if (!(bg_flags & BG_IS_TRANSPARENT))
933	{
934	bg_flags |= BG_IS_TRANSPARENT;
935	return true;
936	}
937
938	return false;
939	}
940
941	bool	682	bool
942	rxvt_term::bg_set_blur (const char *geom)	683	rxvt_term::bg_set_blur (const char *geom)
943	{	684	{
944	bool changed = false;	685	bool changed = false;
945	unsigned int hr, vr;	686	unsigned int hr, vr;
…		…
964	{	705	{
965	changed = true;	706	changed = true;
966	v_blurRadius = vr;	707	v_blurRadius = vr;
967	}	708	}
968		709
969	if (v_blurRadius == 0 && h_blurRadius == 0)
970	bg_flags &= ~BG_NEEDS_BLUR;
971	else
972	bg_flags |= BG_NEEDS_BLUR;
973
974	return changed;	710	return changed;
975	}	711	}
976		712
977	void	713	bool
978	rxvt_term::set_tint_shade_flags ()	714	rxvt_term::bg_set_tint (rxvt_color &new_tint)
979	{	715	{
980	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	716	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
981	bool has_shade = shade != 100;	717	{
982		718	tint = new_tint;
983	bg_flags &= ~BG_TINT_FLAGS;	719	bg_flags |= BG_TINT_SET;
984		720
985	if (bg_flags & BG_TINT_SET)	721	rgba c;
986	{
987	tint.get (c);	722	tint.get (c);
988	if (!has_shade
989	&& (c.r <= 0x00ff || c.r >= 0xff00)	723	if ((c.r <= 0x00ff || c.r >= 0xff00)
990	&& (c.g <= 0x00ff || c.g >= 0xff00)	724	&& (c.g <= 0x00ff || c.g >= 0xff00)
991	&& (c.b <= 0x00ff || c.b >= 0xff00))	725	&& (c.b <= 0x00ff || c.b >= 0xff00))
992	bg_flags |= BG_TINT_BITAND;	726	bg_flags |= BG_TINT_BITAND;
993	}	727	else
994
995	if (has_shade || (bg_flags & BG_TINT_SET))
996	bg_flags |= BG_NEEDS_TINT;
997	}
998
999	bool
1000	rxvt_term::bg_set_tint (rxvt_color &new_tint)
1001	{
1002	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
1003	{
1004	tint = new_tint;
1005	bg_flags |= BG_TINT_SET;	728	bg_flags &= ~BG_TINT_BITAND;
1006	set_tint_shade_flags ();	729
1007	return true;	730	return true;
1008	}	731	}
1009		732
1010	return false;	733	return false;
1011	}	734	}
1012		735
1013	bool	736	bool
1014	rxvt_term::bg_set_shade (const char *shade_str)	737	rxvt_term::bg_set_shade (const char *shade_str)
1015	{	738	{
1016	int new_shade = (shade_str) ? atoi (shade_str) : 100;	739	int new_shade = atoi (shade_str);
1017		740
1018	clamp_it (new_shade, -100, 200);	741	clamp_it (new_shade, -100, 200);
1019	if (new_shade < 0)	742	if (new_shade < 0)
1020	new_shade = 200 - (100 + new_shade);	743	new_shade = 200 - (100 + new_shade);
1021		744
1022	if (new_shade != shade)	745	if (new_shade != shade)
1023	{	746	{
1024	shade = new_shade;	747	shade = new_shade;
1025	set_tint_shade_flags ();
1026	return true;	748	return true;
1027	}	749	}
1028		750
1029	return false;	751	return false;
1030	}	752	}
…		…
1051	params[i+2] = XDoubleToFixed (kernel[i] / sum);	773	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1052	}	774	}
1053	#endif	775	#endif
1054		776
1055	bool	777	bool
1056	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	778	rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
1057	{	779	{
1058	bool ret = false;	780	bool ret = false;
1059	#if XRENDER	781	#if XRENDER
		782	if (!(bg_flags & BG_HAS_RENDER_CONV))
		783	return false;
		784
1060	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;	785	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1061	double *kernel = (double *)malloc (size * sizeof (double));	786	double *kernel = (double *)malloc (size * sizeof (double));
1062	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));	787	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1063		788
1064	XRenderPictureAttributes pa;	789	XRenderPictureAttributes pa;
1065	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	790	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1066		791
		792	pa.repeat = RepeatPad;
1067	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	793	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		794	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
1068	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	795	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		796	XFreePixmap (dpy, tmp);
1069		797
1070	if (kernel && params)	798	if (kernel && params)
1071	{	799	{
1072	if (h_blurRadius)
1073	{
1074	size = h_blurRadius * 2 + 1;	800	size = h_blurRadius * 2 + 1;
1075	get_gaussian_kernel (h_blurRadius, size, kernel, params);	801	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1076		802
1077	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	803	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1078	XRenderComposite (dpy,	804	XRenderComposite (dpy,
1079	PictOpSrc,	805	PictOpSrc,
1080	src,	806	src,
1081	None,	807	None,
1082	dst,	808	dst,
1083	0, 0,	809	0, 0,
1084	0, 0,	810	0, 0,
1085	0, 0,	811	0, 0,
1086	width, height);	812	width, height);
1087	}
1088		813
1089	if (v_blurRadius)	814	::swap (src, dst);
1090	{	815
1091	size = v_blurRadius * 2 + 1;	816	size = v_blurRadius * 2 + 1;
1092	get_gaussian_kernel (v_blurRadius, size, kernel, params);	817	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1093	::swap (params[0], params[1]);	818	::swap (params[0], params[1]);
1094		819
1095	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	820	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1096	XRenderComposite (dpy,	821	XRenderComposite (dpy,
1097	PictOpSrc,	822	PictOpSrc,
1098	src,	823	src,
1099	None,	824	None,
1100	dst,	825	dst,
1101	0, 0,	826	0, 0,
1102	0, 0,	827	0, 0,
1103	0, 0,	828	0, 0,
1104	width, height);	829	width, height);
1105	}
1106		830
1107	ret = true;	831	ret = true;
1108	}	832	}
1109		833
1110	free (kernel);	834	free (kernel);
…		…
1114	#endif	838	#endif
1115	return ret;	839	return ret;
1116	}	840	}
1117		841
1118	bool	842	bool
1119	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	843	rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
1120	{	844	{
1121	bool ret = false;	845	bool ret = false;
1122		846
1123	if (bg_flags & BG_TINT_BITAND)	847	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
1124	{	848	{
1125	XGCValues gcv;	849	XGCValues gcv;
1126	GC gc;	850	GC gc;
1127		851
1128	/* In this case we can tint image server-side getting significant	852	/* In this case we can tint image server-side getting significant
…		…
1137	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);	861	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1138	ret = true;	862	ret = true;
1139	XFreeGC (dpy, gc);	863	XFreeGC (dpy, gc);
1140	}	864	}
1141	}	865	}
1142	else
1143	{
1144	# if XRENDER	866	# if XRENDER
		867	else if (bg_flags & BG_HAS_RENDER)
		868	{
1145	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	869	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1146		870
1147	if (bg_flags & BG_TINT_SET)	871	if (bg_flags & BG_TINT_SET)
1148	tint.get (c);	872	tint.get (c);
1149		873
…		…
1158	c.r = c.r * (200 - shade) / 100;	882	c.r = c.r * (200 - shade) / 100;
1159	c.g = c.g * (200 - shade) / 100;	883	c.g = c.g * (200 - shade) / 100;
1160	c.b = c.b * (200 - shade) / 100;	884	c.b = c.b * (200 - shade) / 100;
1161	}	885	}
1162		886
1163	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1164	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	887	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1165	XRenderPictureAttributes pa;
1166		888
1167	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	889	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1168		890
1169	pa.repeat = True;	891	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1170		892
1171	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);	893	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1172	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1173	XFreePixmap (dpy, overlay_pmap);
1174
1175	pa.component_alpha = True;
1176	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1177	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1178	XFreePixmap (dpy, mask_pmap);
1179		894
1180	XRenderColor mask_c;	895	XRenderColor mask_c;
1181		896
1182	mask_c.alpha = 0xffff;	897	mask_c.alpha = 0xffff;
1183	mask_c.red =	898	mask_c.red =
…		…
1188	mask_c.alpha = 0;	903	mask_c.alpha = 0;
1189	mask_c.red = 0xffff - c.r;	904	mask_c.red = 0xffff - c.r;
1190	mask_c.green = 0xffff - c.g;	905	mask_c.green = 0xffff - c.g;
1191	mask_c.blue = 0xffff - c.b;	906	mask_c.blue = 0xffff - c.b;
1192	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);	907	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		908
1193	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);	909	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1194		910
1195	if (shade > 100)	911	if (shade > 100)
1196	{	912	{
1197	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1198	mask_c.alpha = 0;	913	mask_c.alpha = 0;
		914	mask_c.red =
		915	mask_c.green =
		916	mask_c.blue = 0xffff * (shade - 100) / 100;
1199	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);	917	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1200		918
1201	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);	919	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1202	}	920	}
1203		921
1204	ret = true;	922	ret = true;
1205		923
1206	XRenderFreePicture (dpy, mask_pic);	924	XRenderFreePicture (dpy, mask_pic);
1207	XRenderFreePicture (dpy, overlay_pic);	925	XRenderFreePicture (dpy, overlay_pic);
1208	XRenderFreePicture (dpy, back_pic);	926	XRenderFreePicture (dpy, back_pic);
		927	}
1209	# endif	928	# endif
1210	}
1211		929
1212	return ret;	930	return ret;
1213	}	931	}
1214		932
1215	/*	933	/*
1216	* Builds a pixmap of the same size as the terminal window that contains	934	* Builds a pixmap of the same size as the terminal window that contains
1217	* the tiled portion of the root pixmap that is supposed to be covered by	935	* the tiled portion of the root pixmap that is supposed to be covered by
1218	* our window.	936	* our window.
1219	*/	937	*/
1220	unsigned long	938	bool
1221	rxvt_term::make_transparency_pixmap ()	939	rxvt_term::make_transparency_pixmap ()
1222	{	940	{
1223	unsigned long result = 0;	941	bool ret = false;
1224		942
1225	/* root dimensions may change from call to call - but Display structure should	943	/* root dimensions may change from call to call - but Display structure should
1226	* be always up-to-date, so let's use it :	944	* be always up-to-date, so let's use it :
1227	*/	945	*/
1228	int screen = display->screen;	946	int screen = display->screen;
…		…
1266	#if XRENDER	984	#if XRENDER
1267	if (bg_flags & BG_HAS_RENDER)	985	if (bg_flags & BG_HAS_RENDER)
1268	{	986	{
1269	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);	987	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1270		988
1271	XRenderPictureAttributes pa;
1272
1273	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));	989	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1274	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);	990	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1275		991
1276	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	992	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1277	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	993	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1278		994
1279	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	995	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
1280		996
1281	XRenderFreePicture (dpy, src);	997	XRenderFreePicture (dpy, src);
1282	XRenderFreePicture (dpy, dst);	998	XRenderFreePicture (dpy, dst);
…		…
1299	bg_pmap_width = window_width;	1015	bg_pmap_width = window_width;
1300	bg_pmap_height = window_height;	1016	bg_pmap_height = window_height;
1301	}	1017	}
1302		1018
1303	/* straightforward pixmap copy */	1019	/* straightforward pixmap copy */
1304	while (sx < 0) sx += root_width;	1020	while (sx < 0) sx += root_pmap_width;
1305	while (sy < 0) sy += root_height;	1021	while (sy < 0) sy += root_pmap_height;
1306		1022
1307	gcv.tile = recoded_root_pmap;	1023	gcv.tile = recoded_root_pmap;
1308	gcv.fill_style = FillTiled;	1024	gcv.fill_style = FillTiled;
1309	gcv.ts_x_origin = -sx;	1025	gcv.ts_x_origin = -sx;
1310	gcv.ts_y_origin = -sy;	1026	gcv.ts_y_origin = -sy;
1311	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	1027	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1312		1028
1313	if (gc)	1029	if (gc)
1314	{	1030	{
1315	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);	1031	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1316	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);	1032	ret = true;
		1033	bool need_blur = h_blurRadius && v_blurRadius;
		1034	bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
		1035
		1036	if (!(bg_flags & BG_CLIENT_RENDER))
		1037	{
		1038	if (need_blur)
		1039	{
		1040	if (blur_pixmap (bg_pixmap, window_width, window_height))
		1041	need_blur = false;
		1042	}
		1043	if (need_tint)
		1044	{
		1045	if (tint_pixmap (bg_pixmap, window_width, window_height))
		1046	need_tint = false;
		1047	}
		1048	if (need_tint)
		1049	{
		1050	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1051	if (ximage)
		1052	{
		1053	/* our own client-side tinting */
		1054	tint_ximage (ximage);
		1055
		1056	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1057	XDestroyImage (ximage);
		1058	}
		1059	}
		1060	} /* server side rendering completed */
		1061
1317	XFreeGC (dpy, gc);	1062	XFreeGC (dpy, gc);
1318
1319	if (!(bg_flags & BG_CLIENT_RENDER))
1320	{
1321	if ((bg_flags & BG_NEEDS_BLUR)
1322	&& (bg_flags & BG_HAS_RENDER_CONV))
1323	{
1324	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1325	result &= ~BG_NEEDS_BLUR;
1326	}
1327	if ((bg_flags & BG_NEEDS_TINT)
1328	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1329	{
1330	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1331	result &= ~BG_NEEDS_TINT;
1332	}
1333	} /* server side rendering completed */
1334	}	1063	}
1335		1064
1336	if (recoded_root_pmap != root_pixmap)	1065	if (recoded_root_pmap != root_pixmap)
1337	XFreePixmap (dpy, recoded_root_pmap);	1066	XFreePixmap (dpy, recoded_root_pmap);
1338		1067
1339	return result;	1068	return ret;
1340	}	1069	}
1341		1070
1342	void	1071	void
1343	rxvt_term::bg_set_root_pixmap ()	1072	rxvt_term::bg_set_root_pixmap ()
1344	{	1073	{
…		…
1348		1077
1349	root_pixmap = new_root_pixmap;	1078	root_pixmap = new_root_pixmap;
1350	}	1079	}
1351	# endif /* ENABLE_TRANSPARENCY */	1080	# endif /* ENABLE_TRANSPARENCY */
1352		1081
1353	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1354	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1355	# endif
1356
1357	bool	1082	bool
1358	rxvt_term::bg_render ()	1083	rxvt_term::bg_render ()
1359	{	1084	{
1360	unsigned long tr_flags = 0;
1361
1362	bg_invalidate ();	1085	bg_invalidate ();
1363	# ifdef ENABLE_TRANSPARENCY	1086	# ifdef ENABLE_TRANSPARENCY
1364	if (bg_flags & BG_IS_TRANSPARENT)	1087	if (bg_flags & BG_IS_TRANSPARENT)
1365	{	1088	{
1366	/* we need to re-generate transparency pixmap in that case ! */	1089	/* we need to re-generate transparency pixmap in that case ! */
1367	tr_flags = make_transparency_pixmap ();	1090	if (make_transparency_pixmap ())
1368	if (tr_flags == 0)
1369	return false;
1370	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1371	bg_flags |= BG_IS_VALID;	1091	bg_flags |= BG_IS_VALID;
1372	}	1092	}
1373	# endif	1093	# endif
1374		1094
1375	# ifdef BG_IMAGE_FROM_FILE	1095	# ifdef BG_IMAGE_FROM_FILE
1376	if ((bg_flags & BG_IS_FROM_FILE)	1096	if (bg_image.flags & IM_IS_SET)
1377	|| (tr_flags & BG_EFFECTS_FLAGS))
1378	{	1097	{
1379	if (render_image (tr_flags))	1098	if (render_image (bg_image))
1380	bg_flags |= BG_IS_VALID;	1099	bg_flags |= BG_IS_VALID;
1381	}
1382	# endif
1383
1384	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1385	XImage *result = NULL;
1386
1387	if (tr_flags && !(bg_flags & BG_IS_VALID))
1388	{
1389	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1390	}
1391
1392	if (result)
1393	{
1394	/* our own client-side tinting */
1395	if (tr_flags & BG_NEEDS_TINT)
1396	{
1397	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1398	if (bg_flags & BG_TINT_SET)
1399	tint.get (c);
1400	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1401	}
1402
1403	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1404
1405	if (gc)
1406	{
1407	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1408
1409	XFreeGC (dpy, gc);
1410	bg_flags |= BG_IS_VALID;
1411	}
1412
1413	XDestroyImage (result);
1414	}	1100	}
1415	# endif	1101	# endif
1416		1102
1417	if (!(bg_flags & BG_IS_VALID))	1103	if (!(bg_flags & BG_IS_VALID))
1418	{	1104	{
…		…
1455	#endif	1141	#endif
1456	}	1142	}
1457		1143
1458	#endif /* HAVE_BG_PIXMAP */	1144	#endif /* HAVE_BG_PIXMAP */
1459		1145
1460	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	1146	#ifdef ENABLE_TRANSPARENCY
1461	/* taken from aterm-0.4.2 */	1147	/* based on code from aterm-0.4.2 */
1462		1148
1463	static void	1149	static inline void
1464	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)	1150	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1465	{	1151	{
		1152	for (int i = 0; i <= mask >> sh; i++)
		1153	{
		1154	uint32_t tmp;
		1155	tmp = i * high;
		1156	tmp += (mask >> sh) * low;
		1157	lookup[i] = (tmp / 0xffff) << sh;
		1158	}
		1159	}
		1160
		1161	void
		1162	rxvt_term::tint_ximage (XImage *ximage)
		1163	{
		1164	unsigned int size_r, size_g, size_b;
1466	int sh_r, sh_g, sh_b;	1165	int sh_r, sh_g, sh_b;
1467	uint32_t mask_r, mask_g, mask_b;	1166	uint32_t mask_r, mask_g, mask_b;
1468	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;	1167	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1469	rgba low;	1168	unsigned short low;
1470	rgba high;
1471	int i;
1472	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;	1169	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1473		1170
1474	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;	1171	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1475		1172
1476	/* for convenience */	1173	/* for convenience */
1477	mask_r = visual->red_mask;	1174	mask_r = visual->red_mask;
1478	mask_g = visual->green_mask;	1175	mask_g = visual->green_mask;
1479	mask_b = visual->blue_mask;	1176	mask_b = visual->blue_mask;
1480		1177
1481	/* boring lookup table pre-initialization */	1178	/* boring lookup table pre-initialization */
1482	switch (ximage->depth)	1179	sh_r = ecb_ctz32 (mask_r);
1483	{	1180	sh_g = ecb_ctz32 (mask_g);
1484	case 15:	1181	sh_b = ecb_ctz32 (mask_b);
1485	if ((mask_r != 0x7c00) ||	1182
1486	(mask_g != 0x03e0) ||	1183	size_r = mask_r >> sh_r;
1487	(mask_b != 0x001f))	1184	size_g = mask_g >> sh_g;
		1185	size_b = mask_b >> sh_b;
		1186
		1187	if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1488	return;	1188	return;
1489	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));	1189
		1190	lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1490	lookup_r = lookup;	1191	lookup_r = lookup;
1491	lookup_g = lookup+32;	1192	lookup_g = lookup + size_r;
1492	lookup_b = lookup+32+32;	1193	lookup_b = lookup + size_r + size_g;
1493	sh_r = 10;	1194
1494	sh_g = 5;	1195	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1495	sh_b = 0;	1196
1496	break;	1197	if (bg_flags & BG_TINT_SET)
1497	case 16:	1198	tint.get (c);
1498	if ((mask_r != 0xf800) ||
1499	(mask_g != 0x07e0) ||
1500	(mask_b != 0x001f))
1501	return;
1502	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1503	lookup_r = lookup;
1504	lookup_g = lookup+32;
1505	lookup_b = lookup+32+64;
1506	sh_r = 11;
1507	sh_g = 5;
1508	sh_b = 0;
1509	break;
1510	case 24:
1511	if ((mask_r != 0xff0000) ||
1512	(mask_g != 0x00ff00) ||
1513	(mask_b != 0x0000ff))
1514	return;
1515	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1516	lookup_r = lookup;
1517	lookup_g = lookup+256;
1518	lookup_b = lookup+256+256;
1519	sh_r = 16;
1520	sh_g = 8;
1521	sh_b = 0;
1522	break;
1523	case 32:
1524	if ((mask_r != 0xff0000) ||
1525	(mask_g != 0x00ff00) ||
1526	(mask_b != 0x0000ff))
1527	return;
1528	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1529	lookup_r = lookup;
1530	lookup_g = lookup+256;
1531	lookup_b = lookup+256+256;
1532	sh_r = 16;
1533	sh_g = 8;
1534	sh_b = 0;
1535	break;
1536	default:
1537	return; /* we do not support this color depth */
1538	}
1539		1199
1540	/* prepare limits for color transformation (each channel is handled separately) */	1200	/* prepare limits for color transformation (each channel is handled separately) */
1541	if (shade > 100)	1201	if (shade > 100)
1542	{	1202	{
1543	shade = 200 - shade;
1544
1545	high.r = c.r * shade / 100;
1546	high.g = c.g * shade / 100;
1547	high.b = c.b * shade / 100;
1548
1549	low.r = 65535 * (100 - shade) / 100;	1203	c.r = c.r * (200 - shade) / 100;
1550	low.g = 65535 * (100 - shade) / 100;	1204	c.g = c.g * (200 - shade) / 100;
1551	low.b = 65535 * (100 - shade) / 100;	1205	c.b = c.b * (200 - shade) / 100;
		1206
		1207	low = 0xffff * (shade - 100) / 100;
1552	}	1208	}
1553	else	1209	else
1554	{	1210	{
1555	high.r = c.r * shade / 100;	1211	c.r = c.r * shade / 100;
1556	high.g = c.g * shade / 100;	1212	c.g = c.g * shade / 100;
1557	high.b = c.b * shade / 100;	1213	c.b = c.b * shade / 100;
1558		1214
1559	low.r = low.g = low.b = 0;	1215	low = 0;
1560	}	1216	}
1561		1217
1562	/* fill our lookup tables */	1218	/* fill our lookup tables */
1563	for (i = 0; i <= mask_r>>sh_r; i++)	1219	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1564	{	1220	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1565	uint32_t tmp;	1221	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1566	tmp = i * high.r;
1567	tmp += (mask_r>>sh_r) * low.r;
1568	lookup_r[i] = (tmp/65535)<<sh_r;
1569	}
1570	for (i = 0; i <= mask_g>>sh_g; i++)
1571	{
1572	uint32_t tmp;
1573	tmp = i * high.g;
1574	tmp += (mask_g>>sh_g) * low.g;
1575	lookup_g[i] = (tmp/65535)<<sh_g;
1576	}
1577	for (i = 0; i <= mask_b>>sh_b; i++)
1578	{
1579	uint32_t tmp;
1580	tmp = i * high.b;
1581	tmp += (mask_b>>sh_b) * low.b;
1582	lookup_b[i] = (tmp/65535)<<sh_b;
1583	}
1584		1222
1585	/* apply table to input image (replacing colors by newly calculated ones) */	1223	/* apply table to input image (replacing colors by newly calculated ones) */
1586	if (ximage->bits_per_pixel == 32	1224	if (ximage->bits_per_pixel == 32
1587	&& (ximage->depth == 24 || ximage->depth == 32)
1588	&& ximage->byte_order == host_byte_order)	1225	&& ximage->byte_order == host_byte_order)
1589	{	1226	{
1590	uint32_t *p1, *pf, *p, *pl;	1227	char *line = ximage->data;
1591	p1 = (uint32_t *) ximage->data;
1592	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1593		1228
1594	while (p1 < pf)	1229	for (int y = 0; y < ximage->height; y++)
1595	{
1596	p = p1;
1597	pl = p1 + ximage->width;
1598	for (; p < pl; p++)
1599	{	1230	{
1600	*p = lookup_r[(*p & 0xff0000) >> 16] |	1231	uint32_t *p = (uint32_t *)line;
1601	lookup_g[(*p & 0x00ff00) >> 8] |	1232	for (int x = 0; x < ximage->width; x++)
1602	lookup_b[(*p & 0x0000ff)] |
1603	(*p & 0xff000000);
1604	}	1233	{
1605	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);	1234	*p = lookup_r[(*p & mask_r) >> sh_r] |
		1235	lookup_g[(*p & mask_g) >> sh_g] |
		1236	lookup_b[(*p & mask_b) >> sh_b];
		1237	p++;
		1238	}
		1239	line += ximage->bytes_per_line;
1606	}	1240	}
1607	}	1241	}
1608	else	1242	else
1609	{	1243	{
1610	for (int y = 0; y < ximage->height; y++)	1244	for (int y = 0; y < ximage->height; y++)
…		…
1618	}	1252	}
1619	}	1253	}
1620		1254
1621	free (lookup);	1255	free (lookup);
1622	}	1256	}
1623	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1257	#endif /* ENABLE_TRANSPARENCY */

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