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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.143 by sf-exg, Fri Jan 28 00:08:57 2011 UTC vs.
Revision 1.218 by sf-exg, Mon May 21 12:29:22 2012 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C - former xpm.C
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <pcg@goof.com>	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	* tile Tile image. Scaling/position modifiers above will affect
52	* the tile size and origin.
53	* propscale When scaling, scale proportionally. That is, maintain the
54	* proper aspect ratio for the image. Any portion of the
55	* background not covered by the image is filled with the
56	* current background color.
57	* hscale Scale horizontally, tile vertically ?
58	* vscale Tile horizontally, scale vertically ?
59	* scale Scale both up and down
60	* auto Same as 100x100+50+50
61	*/
62		40
63	#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
64	void	60	void
65	rxvt_term::bg_destroy ()	61	rxvt_term::bg_destroy ()
66	{	62	{
67	#ifdef HAVE_AFTERIMAGE
68	if (original_asim)
69	safe_asimage_destroy (original_asim);
70	#endif
71
72	#ifdef HAVE_PIXBUF
73	if (pixbuf)
74	g_object_unref (pixbuf);
75	#endif
76
77	if (bg_pixmap)	63	if (bg_pixmap)
78	XFreePixmap (dpy, bg_pixmap);	64	XFreePixmap (dpy, bg_pixmap);
79	}	65	}
80		66
81	bool	67	bool
…		…
99	if (bg_flags & BG_IS_TRANSPARENT)	85	if (bg_flags & BG_IS_TRANSPARENT)
100	return true;	86	return true;
101	# endif	87	# endif
102		88
103	# ifdef BG_IMAGE_FROM_FILE	89	# ifdef BG_IMAGE_FROM_FILE
104	if (have_image)	90	if (bg_image.flags & IM_IS_SET)
105	{	91	{
106	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)
107	return true;	95	return true;
108	}	96	}
109	# endif	97	# endif
110		98
111	return false;	99	return false;
…		…
118	if (bg_flags & BG_IS_TRANSPARENT)	106	if (bg_flags & BG_IS_TRANSPARENT)
119	return true;	107	return true;
120	# endif	108	# endif
121		109
122	# ifdef BG_IMAGE_FROM_FILE	110	# ifdef BG_IMAGE_FROM_FILE
123	if (have_image)	111	if (bg_image.flags & IM_IS_SET)
124	{	112	{
125	if (bg_flags & BG_ROOT_ALIGN)	113	if (bg_image.flags & IM_ROOT_ALIGN)
126	return true;	114	return true;
127	}	115	}
128	# endif	116	# endif
129		117
130	return false;	118	return false;
131	}	119	}
132		120
133	# ifdef BG_IMAGE_FROM_FILE	121	# ifdef BG_IMAGE_FROM_FILE
134	static inline bool
135	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
136	{
137	if (geom_flags & flag)
138	{
139	if (new_value > 1000)
140	new_value = 1000;
141	if (new_value != scale)
142	{
143	scale = new_value;
144	return true;
145	}
146	}
147	return false;
148	}
149
150	static inline bool
151	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
152	{
153	if (geom_flags & flag)
154	{
155	if (new_value < -100)
156	new_value = -100;
157	else if (new_value > 200)
158	new_value = 200;
159	if (new_value != align)
160	{
161	align = new_value;
162	return true;
163	}
164	}
165	return false;
166	}
167
168	static inline int	122	static inline int
169	make_align_position (int align, int window_size, int image_size)	123	make_align_position (int align, int window_size, int image_size)
170	{	124	{
171	int diff = window_size - image_size;
172	int smaller = min (image_size, window_size);
173
174	if (align >= 0 && align <= 100)	125	if (align >= 0 && align <= 100)
175	return diff * align / 100;	126	return lerp (0, window_size - image_size, align);
176	else if (align > 100 && align <= 200)	127	else if (align > 100)
177	return ((align - 100) * smaller / 100) + window_size - smaller;	128	return lerp (window_size - image_size, window_size, align - 100);
178	else if (align >= -100 && align < 0)	129	else
179	return ((align + 100) * smaller / 100) - image_size;	130	return lerp (-image_size, 0, align + 100);
180	return 0;
181	}	131	}
182		132
183	static inline int	133	static inline int
184	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)
185	{	135	{
…		…
191	src_pos = -pos;	141	src_pos = -pos;
192	dst_pos = 0;	142	dst_pos = 0;
193	dst_size += pos;	143	dst_size += pos;
194	}	144	}
195		145
196	if (dst_pos + dst_size > target_size)
197	dst_size = target_size - dst_pos;	146	min_it (dst_size, target_size - dst_pos);
198	return src_pos;	147	return src_pos;
199	}	148	}
200		149
201	bool	150	bool
202	rxvt_term::bg_set_geometry (const char *geom, bool update)	151	rxvt_image::set_geometry (const char *geom, bool update)
203	{	152	{
204	bool changed = false;	153	bool changed = false;
205	int geom_flags = 0;	154	int geom_flags = 0;
206	int x = 0, y = 0;	155	int x = h_align;
		156	int y = v_align;
207	unsigned int w = 0, h = 0;	157	unsigned int w = h_scale;
208	unsigned int n;	158	unsigned int h = v_scale;
209	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	159	unsigned long new_flags = 0;
210	const char *ops;
211		160
212	if (geom == NULL)	161	if (geom == NULL)
213	return false;	162	return false;
214		163
215	char str[256];	164	if (geom[0])
216
217	ops = strchr (geom, ':');
218	if (ops == NULL)
219	n = strlen (geom);
220	else
221	n = ops - geom;
222
223	if (n >= sizeof (str))
224	return false;
225
226	memcpy (str, geom, n);
227	str[n] = '\0';
228	rxvt_strtrim (str);
229
230	if (str[0])
231	{	165	{
232	/* 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
233	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	256	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
234	} /* done parsing geometry string */	257	} /* done parsing ops */
		258
		259	rxvt_free_strsplit (arr);
		260	}
		261
		262	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
235		263
236	if (!update)	264	if (!update)
237	{	265	{
238	if (!(geom_flags & XValue))	266	if (!(geom_flags & XValue))
239	x = y = defaultAlign;	267	x = y = defaultAlign;
…		…
244	w = h = defaultScale;	272	w = h = defaultScale;
245	else if (!(geom_flags & HeightValue))	273	else if (!(geom_flags & HeightValue))
246	h = w;	274	h = w;
247	else if (!(geom_flags & WidthValue))	275	else if (!(geom_flags & WidthValue))
248	w = h;	276	w = h;
249
250	geom_flags |= WidthValue|HeightValue|XValue|YValue;
251	}
252
253	if (ops)
254	{	277	}
255	char **arr = rxvt_strsplit (':', ops + 1);
256		278
257	for (int i = 0; arr[i]; i++)	279	clamp_it (x, -100, 200);
258	{	280	clamp_it (y, -100, 200);
259	if (!strcasecmp (arr[i], "tile"))
260	{
261	w = h = noScale;
262	geom_flags |= WidthValue|HeightValue;
263	}
264	else if (!strcasecmp (arr[i], "propscale"))
265	{
266	new_flags |= BG_PROP_SCALE;
267	}
268	else if (!strcasecmp (arr[i], "hscale"))
269	{
270	if (w == 0) w = windowScale;
271		281
272	h = noScale;	282	if (flags != new_flags
273	geom_flags |= WidthValue|HeightValue;	283	|| h_scale != w
274	}	284	|| v_scale != h
275	else if (!strcasecmp (arr[i], "vscale"))	285	|| h_align != x
276	{	286	|| v_align != y)
277	if (h == 0) h = windowScale;
278
279	w = noScale;
280	geom_flags |= WidthValue|HeightValue;
281	}
282	else if (!strcasecmp (arr[i], "scale"))
283	{
284	if (h == 0) h = windowScale;
285	if (w == 0) w = windowScale;
286
287	geom_flags |= WidthValue|HeightValue;
288	}
289	else if (!strcasecmp (arr[i], "auto"))
290	{
291	w = h = windowScale;
292	x = y = centerAlign;
293	geom_flags |= WidthValue|HeightValue|XValue|YValue;
294	}
295	else if (!strcasecmp (arr[i], "root"))
296	{
297	new_flags |= BG_ROOT_ALIGN;
298	w = h = noScale;
299	geom_flags |= WidthValue|HeightValue;
300	}
301	} /* done parsing ops */
302
303	rxvt_free_strsplit (arr);
304	}	287	{
305
306	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
307	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
308	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
309	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
310
311	if (new_flags != bg_flags)
312	{
313	bg_flags = new_flags;	288	flags = new_flags;
		289	h_scale = w;
		290	v_scale = h;
		291	h_align = x;
		292	v_align = y;
314	changed = true;	293	changed = true;
315	}	294	}
316		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
317	return changed;	303	return changed;
318	}	304	}
319		305
320	void	306	void
321	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)
322	{	308	{
		309	int image_width = image.width ();
		310	int image_height = image.height ();
323	int target_width = szHint.width;	311	int target_width = szHint.width;
324	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);
325		315
326	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)
327	{	320	{
328	float scale = (float)target_width / image_width;	321	float scale = (float)w / image_width;
329	min_it (scale, (float)target_height / image_height);	322	min_it (scale, (float)h / image_height);
330	w = image_width * scale + 0.5;	323	w = image_width * scale + 0.5;
331	h = image_height * scale + 0.5;	324	h = image_height * scale + 0.5;
332	}	325	}
333	else
334	{
335	w = h_scale * target_width / 100;
336	h = v_scale * target_height / 100;
337	}
338		326
339	if (!w) w = image_width;	327	if (!w) w = image_width;
340	if (!h) h = image_height;	328	if (!h) h = image_height;
341		329
342	if (bg_flags & BG_ROOT_ALIGN)	330	if (image.flags & IM_ROOT_ALIGN)
343	{	331	{
344	x = -target_x;	332	x = -target_x;
345	y = -target_y;	333	y = -target_y;
346	}	334	}
347	else	335	else
348	{	336	{
349	x = make_align_position (h_align, target_width, w);	337	x = make_align_position (image.h_align, target_width, w);
350	y = make_align_position (v_align, target_height, h);	338	y = make_align_position (image.v_align, target_height, h);
351	}
352
353	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
354	if ((bg_flags & BG_PROP_SCALE) || h_scale || v_scale
355	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
356	|| w > target_width || h > target_height)
357	bg_flags |= BG_IS_SIZE_SENSITIVE;
358	}
359
360	# ifdef HAVE_AFTERIMAGE
361	bool
362	rxvt_term::render_image (unsigned long tr_flags)
363	{
364	init_asv ();
365
366	ASImage *background = NULL;
367	ARGB32 background_tint = TINT_LEAVE_SAME;
368
369	# ifdef ENABLE_TRANSPARENCY
370	if (tr_flags)
371	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
372
373	if (tr_flags & BG_NEEDS_TINT)
374	{	339	}
375	ShadingInfo as_shade;	340	}
376	as_shade.shading = shade;
377		341
378	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	342	# ifdef HAVE_PIXBUF
379	if (bg_flags & BG_TINT_SET)	343	bool
380	tint.get (c);	344	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
381	as_shade.tintColor.red = c.r;	345	int src_x, int src_y, int dst_x, int dst_y,
382	as_shade.tintColor.green = c.g;	346	unsigned int width, unsigned int height, bool argb)
383	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;
384		356
385	background_tint = shading2tint32 (&as_shade);	357	if (visual->c_class != TrueColor)
		358	return false;
		359
		360	if (argb)
386	}	361	{
387		362	red_mask = 0xff << 16;
388	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)	363	green_mask = 0xff << 8;
		364	blue_mask = 0xff;
		365	alpha_mask = 0xff << 24;
389	{	366	}
390	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,	367	else
391	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,	368	{
392	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);
393	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)
394	{	435	{
395	destroy_asimage (&background);	436	a = pixel[3];
396	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);
397	}	458	}
398	}
399	# endif
400		459
401	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);
402		486
403	int target_width = szHint.width;	487	int target_width = szHint.width;
404	int target_height = szHint.height;	488	int target_height = szHint.height;
405	int new_pmap_width = target_width;	489	int new_pmap_width = target_width;
406	int new_pmap_height = target_height;	490	int new_pmap_height = target_height;
…		…
408	int x = 0;	492	int x = 0;
409	int y = 0;	493	int y = 0;
410	int w = 0;	494	int w = 0;
411	int h = 0;	495	int h = 0;
412		496
413	if (original_asim)	497	get_image_geometry (image, w, h, x, y);
414	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
415		498
416	if (!original_asim	499	if (!(image.flags & IM_ROOT_ALIGN)
417	|| (!(bg_flags & BG_ROOT_ALIGN)
418	&& (x >= target_width	500	&& (x >= target_width
419	|| y >= target_height	501	|| y >= target_height
420	|| (x + w <= 0)	502	|| x + w <= 0
421	|| (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);
422	{	514	}
423	if (background)
424	{
425	new_pmap_width = background->width;
426	new_pmap_height = background->height;
427	result = background;
428		515
429	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)
430	{	533	{
431	ASImage *tmp = tile_asimage (asv, background, 0, 0,	534	new_pmap_width = min (image_width, target_width);
432	target_width, target_height, background_tint,	535	new_pmap_height = min (image_height, target_height);
433	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
434	if (tmp)
435	result = tmp;
436	}
437	}	536	}
438	else
439	new_pmap_width = new_pmap_height = 0;
440	}
441	else
442	{
443	result = original_asim;
444		537
445	if ((w != original_asim->width)
446	|| (h != original_asim->height))
447	{
448	result = scale_asimage (asv, original_asim,
449	w, h,
450	background ? ASA_ASImage : ASA_XImage,
451	100, ASIMAGE_QUALITY_DEFAULT);
452	}
453
454	if (background == NULL)
455	{
456	if (h_scale == 0 || v_scale == 0)
457	{
458	/* if tiling - pixmap has to be sized exactly as the image,
459	but there is no need to make it bigger than the window! */
460	new_pmap_width = min (result->width, target_width);
461	new_pmap_height = min (result->height, target_height);
462
463	/* we also need to tile our image in both directions */
464	ASImage *tmp = tile_asimage (asv, result,
465	(int)result->width - x,
466	(int)result->height - y,
467	new_pmap_width,
468	new_pmap_height,
469	TINT_LEAVE_SAME, ASA_XImage,
470	100, ASIMAGE_QUALITY_DEFAULT);
471	if (tmp)
472	{
473	if (result != original_asim)
474	destroy_asimage (&result);
475
476	result = tmp;
477	}
478	}
479	}
480	else
481	{
482	/* if blending background and image - pixmap has to be sized same as target window */
483	ASImageLayer *layers = create_image_layers (2);
484
485	layers[0].im = background;
486	layers[0].clip_width = target_width;
487	layers[0].clip_height = target_height;
488	layers[0].tint = background_tint;
489	layers[1].im = result;
490
491	if (h_scale == 0 || v_scale == 0)
492	{
493	/* tile horizontally */
494	while (x > 0) x -= (int)result->width;
495	layers[1].dst_x = x;
496	layers[1].clip_width = result->width+target_width;
497	}
498	else
499	{
500	/* clip horizontally */
501	layers[1].dst_x = x;
502	layers[1].clip_width = result->width;
503	}
504
505	if (h_scale == 0 || v_scale == 0)
506	{
507	while (y > 0) y -= (int)result->height;
508	layers[1].dst_y = y;
509	layers[1].clip_height = result->height + target_height;
510	}
511	else
512	{
513	layers[1].dst_y = y;
514	layers[1].clip_height = result->height;
515	}
516
517	if (rs[Rs_blendtype])
518	{
519	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
520	if (layers[1].merge_scanlines == NULL)
521	layers[1].merge_scanlines = alphablend_scanlines;
522	}
523
524	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
525	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
526
527	if (tmp)
528	{
529	if (result != original_asim)
530	destroy_asimage (&result);
531
532	result = tmp;
533	}
534
535	free (layers);
536	}
537	}
538
539	bool ret = false;
540
541	if (result)
542	{
543	XGCValues gcv;
544	GC gc;
545
546	/* create Pixmap */
547	if (bg_pixmap == None	538	if (bg_pixmap == None
548	|| bg_pmap_width != new_pmap_width	539	|| bg_pmap_width != new_pmap_width
549	|| bg_pmap_height != new_pmap_height)	540	|| bg_pmap_height != new_pmap_height)
550	{	541	{
551	if (bg_pixmap)	542	if (bg_pixmap)
552	XFreePixmap (dpy, bg_pixmap);	543	XFreePixmap (dpy, bg_pixmap);
553	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);
554	bg_pmap_width = new_pmap_width;	545	bg_pmap_width = new_pmap_width;
555	bg_pmap_height = new_pmap_height;	546	bg_pmap_height = new_pmap_height;
556	}	547	}
557	/* fill with background color (if result's not completely overlapping it) */	548
		549	tmp_pixmap = bg_pixmap;
		550	}
		551
558	gcv.foreground = pix_colors[Color_bg];	552	gcv.foreground = pix_colors[Color_bg];
559	gc = XCreateGC (dpy, vt, GCForeground, &gcv);	553	gc = XCreateGC (dpy, tmp_pixmap, GCForeground, &gcv);
560		554
561	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;	555	if (gc)
562	int dst_width = result->width, dst_height = result->height;	556	{
563	if (background == NULL)	557	if (image.flags & IM_TILE)
564	{
565	if (!(h_scale == 0 || v_scale == 0))
566	{
567	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
568	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
569	}
570
571	if (dst_x > 0 || dst_y > 0
572	|| dst_x + dst_width < new_pmap_width
573	|| dst_y + dst_height < new_pmap_height)
574	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
575	}	558	{
576
577	/* put result on pixmap */
578	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
579	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
580
581	if (result != background && result != original_asim)
582	destroy_asimage (&result);
583
584	XFreeGC (dpy, gc);
585
586	ret = true;
587	}
588
589	if (background)
590	destroy_asimage (&background);
591
592	return ret;
593	}
594	# endif /* HAVE_AFTERIMAGE */
595
596	# ifdef HAVE_PIXBUF
597	bool
598	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
599	int src_x, int src_y, int dst_x, int dst_y,
600	unsigned int width, unsigned int height)
601	{
602	XImage *ximage;
603	char *data, *line;
604	int bytes_per_pixel;
605	int width_r, width_g, width_b;
606	int sh_r, sh_g, sh_b;
607	int rowstride;
608	int channels;
609	unsigned char *row;
610
611	if (visual->c_class != TrueColor)
612	return false;
613
614	if (depth == 24 || depth == 32)
615	bytes_per_pixel = 4;
616	else if (depth == 15 || depth == 16)
617	bytes_per_pixel = 2;
618	else
619	return false;
620
621	width_r = rxvt_popcount (visual->red_mask);
622	width_g = rxvt_popcount (visual->green_mask);
623	width_b = rxvt_popcount (visual->blue_mask);
624
625	if (width_r > 8 || width_g > 8 || width_b > 8)
626	return false;
627
628	sh_r = rxvt_ctz (visual->red_mask);
629	sh_g = rxvt_ctz (visual->green_mask);
630	sh_b = rxvt_ctz (visual->blue_mask);
631
632	if (width > INT_MAX / height / bytes_per_pixel)
633	return false;
634
635	data = (char *)malloc (width * height * bytes_per_pixel);
636	if (!data)
637	return false;
638
639	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
640	width, height, bytes_per_pixel * 8, 0);
641	if (!ximage)
642	{
643	free (data);
644	return false;
645	}
646
647	ximage->byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
648
649	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
650	channels = gdk_pixbuf_get_n_channels (pixbuf);
651	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
652	line = data;
653
654	for (int y = 0; y < height; y++)
655	{
656	for (int x = 0; x < width; x++)
657	{
658	unsigned char *pixel = row + x * channels;
659	uint32_t value;
660
661	value = ((pixel[0] >> (8 - width_r)) << sh_r)
662	| ((pixel[1] >> (8 - width_g)) << sh_g)
663	| ((pixel[2] >> (8 - width_b)) << sh_b);
664
665	if (bytes_per_pixel == 4)
666	((uint32_t *)line)[x] = value;
667	else
668	((uint16_t *)line)[x] = value;
669	}
670
671	row += rowstride;
672	line += ximage->bytes_per_line;
673	}
674
675	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
676	XDestroyImage (ximage);
677	return true;
678	}
679
680	bool
681	rxvt_term::render_image (unsigned long tr_flags)
682	{
683	if (!pixbuf)
684	return false;
685
686	if (tr_flags
687	&& !(bg_flags & BG_HAS_RENDER))
688	return false;
689
690	GdkPixbuf *result;
691
692	int image_width = gdk_pixbuf_get_width (pixbuf);
693	int image_height = gdk_pixbuf_get_height (pixbuf);
694
695	int target_width = szHint.width;
696	int target_height = szHint.height;
697	int new_pmap_width = target_width;
698	int new_pmap_height = target_height;
699
700	int x = 0;
701	int y = 0;
702	int w = 0;
703	int h = 0;
704
705	get_image_geometry (image_width, image_height, w, h, x, y);
706
707	if (!(bg_flags & BG_ROOT_ALIGN)
708	&& (x >= target_width
709	|| y >= target_height
710	|| (x + w <= 0)
711	|| (y + h <= 0)))
712	return false;
713
714	result = pixbuf;
715
716	if ((w != image_width)
717	|| (h != image_height))
718	{
719	result = gdk_pixbuf_scale_simple (pixbuf,
720	w, h,
721	GDK_INTERP_BILINEAR);
722	}
723
724	bool ret = false;
725
726	if (result)
727	{
728	XGCValues gcv;
729	GC gc;
730	Pixmap root_pmap;
731
732	image_width = gdk_pixbuf_get_width (result);
733	image_height = gdk_pixbuf_get_height (result);
734
735	if (tr_flags)
736	{
737	root_pmap = bg_pixmap;
738	bg_pixmap = None;
739	}
740	else
741	{
742	if (h_scale == 0 || v_scale == 0)
743	{
744	new_pmap_width = min (image_width, target_width);
745	new_pmap_height = min (image_height, target_height);
746	}
747	}
748
749	if (bg_pixmap == None
750	|| bg_pmap_width != new_pmap_width
751	|| bg_pmap_height != new_pmap_height)
752	{
753	if (bg_pixmap)
754	XFreePixmap (dpy, bg_pixmap);
755	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
756	bg_pmap_width = new_pmap_width;
757	bg_pmap_height = new_pmap_height;
758	}
759
760	gcv.foreground = pix_colors[Color_bg];
761	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
762
763	if (h_scale == 0 || v_scale == 0)
764	{
765	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);	559	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, need_blend ? 32 : depth);
766	pixbuf_to_pixmap (result, tile, gc,	560	pixbuf_to_pixmap (result, tile, gc,
767	0, 0,	561	0, 0,
768	0, 0,	562	0, 0,
769	image_width, image_height);	563	image_width, image_height, need_blend);
770		564
771	gcv.tile = tile;	565	gcv.tile = tile;
772	gcv.fill_style = FillTiled;	566	gcv.fill_style = FillTiled;
773	gcv.ts_x_origin = x;	567	gcv.ts_x_origin = x;
774	gcv.ts_y_origin = y;	568	gcv.ts_y_origin = y;
775	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	569	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
776		570
777	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);
778	XFreePixmap (dpy, tile);	572	XFreePixmap (dpy, tile);
779	}	573	}
780	else	574	else
781	{	575	{
782	int src_x, src_y, dst_x, dst_y;	576	int src_x, src_y, dst_x, dst_y;
…		…
786	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);
787		581
788	if (dst_x > 0 || dst_y > 0	582	if (dst_x > 0 || dst_y > 0
789	|| dst_x + dst_width < new_pmap_width	583	|| dst_x + dst_width < new_pmap_width
790	|| dst_y + dst_height < new_pmap_height)	584	|| dst_y + dst_height < new_pmap_height)
791	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);
792		586
793	if (dst_x < new_pmap_width && dst_y < new_pmap_height)	587	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
794	pixbuf_to_pixmap (result, bg_pixmap, gc,	588	pixbuf_to_pixmap (result, tmp_pixmap, gc,
795	src_x, src_y,	589	src_x, src_y,
796	dst_x, dst_y,	590	dst_x, dst_y,
797	dst_width, dst_height);	591	dst_width, dst_height, need_blend);
798	}	592	}
799		593
800	#if XRENDER	594	#if XRENDER
801	if (tr_flags)	595	if (need_blend)
802	{	596	{
803	XRenderPictureAttributes pa;	597	XRenderPictFormat *argb_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
804
805	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	598	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		599
806	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	600	Picture src = XRenderCreatePicture (dpy, tmp_pixmap, argb_format, 0, 0);
807		601
808	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
809	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	602	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
810		603
811	pa.repeat = True;	604	Picture mask = create_xrender_mask (dpy, vt, False, False);
812	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
813	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
814	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
815	XFreePixmap (dpy, mask_pmap);
816		605
817	if (src && dst && mask)
818	{
819	XRenderColor mask_c;	606	XRenderColor mask_c;
820		607
821	mask_c.alpha = 0x8000;	608	mask_c.alpha = 0x8000;
822	mask_c.red = 0;	609	mask_c.red =
823	mask_c.green = 0;	610	mask_c.green =
824	mask_c.blue = 0;	611	mask_c.blue = 0;
825	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);	612	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		613
826	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);
827	}
828		615
829	XRenderFreePicture (dpy, src);	616	XRenderFreePicture (dpy, src);
830	XRenderFreePicture (dpy, dst);	617	XRenderFreePicture (dpy, dst);
831	XRenderFreePicture (dpy, mask);	618	XRenderFreePicture (dpy, mask);
832
833	XFreePixmap (dpy, root_pmap);
834	}	619	}
835	#endif	620	#endif
836		621
837	if (result != pixbuf)
838	g_object_unref (result);
839
840	XFreeGC (dpy, gc);	622	XFreeGC (dpy, gc);
841		623
842	ret = true;	624	ret = true;
843	}	625	}
844		626
		627	if (result != pixbuf)
		628	g_object_unref (result);
		629
		630	if (need_blend)
		631	XFreePixmap (dpy, tmp_pixmap);
		632
845	return ret;	633	return ret;
846	}	634	}
847	# endif /* HAVE_PIXBUF */	635	# endif /* HAVE_PIXBUF */
848		636
849	bool	637	bool
850	rxvt_term::bg_set_file (const char *file)	638	rxvt_image::set_file (const char *file)
851	{	639	{
852	if (!file || !*file)	640	if (!file || !*file)
853	return false;	641	return false;
854		642
		643	bool ret = false;
855	if (const char *p = strchr (file, ';'))	644	const char *p = strchr (file, ';');
		645
		646	if (p)
856	{	647	{
857	size_t len = p - file;	648	size_t len = p - file;
858	char *f = rxvt_temp_buf<char> (len + 1);	649	char *f = rxvt_temp_buf<char> (len + 1);
859	memcpy (f, file, len);	650	memcpy (f, file, len);
860	f[len] = '\0';	651	f[len] = '\0';
861	file = f;	652	file = f;
862	}	653	}
863		654
864	# ifdef HAVE_AFTERIMAGE
865	if (!asimman)
866	asimman = create_generic_imageman (rs[Rs_path]);
867	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
868	if (image)
869	{
870	if (original_asim)
871	safe_asimage_destroy (original_asim);
872	original_asim = image;
873	bg_flags |= BG_CLIENT_RENDER;
874	have_image = true;
875	return true;
876	}
877	# endif
878
879	# ifdef HAVE_PIXBUF	655	# ifdef HAVE_PIXBUF
880	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	656	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
881	if (image)	657	if (image)
882	{	658	{
883	if (pixbuf)	659	if (pixbuf)
884	g_object_unref (pixbuf);	660	g_object_unref (pixbuf);
885	pixbuf = image;	661	pixbuf = image;
886	have_image = true;
887	return true;	662	ret = true;
888	}	663	}
889	# endif	664	# endif
890		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
891	return false;	676	return ret;
892	}	677	}
893		678
894	# endif /* BG_IMAGE_FROM_FILE */	679	# endif /* BG_IMAGE_FROM_FILE */
895		680
896	# ifdef ENABLE_TRANSPARENCY	681	# ifdef ENABLE_TRANSPARENCY
897	bool
898	rxvt_term::bg_set_transparent ()
899	{
900	if (!(bg_flags & BG_IS_TRANSPARENT))
901	{
902	bg_flags |= BG_IS_TRANSPARENT;
903	return true;
904	}
905
906	return false;
907	}
908
909	bool	682	bool
910	rxvt_term::bg_set_blur (const char *geom)	683	rxvt_term::bg_set_blur (const char *geom)
911	{	684	{
912	bool changed = false;	685	bool changed = false;
913	unsigned int hr, vr;	686	unsigned int hr, vr;
…		…
932	{	705	{
933	changed = true;	706	changed = true;
934	v_blurRadius = vr;	707	v_blurRadius = vr;
935	}	708	}
936		709
937	if (v_blurRadius == 0 && h_blurRadius == 0)
938	bg_flags &= ~BG_NEEDS_BLUR;
939	else
940	bg_flags |= BG_NEEDS_BLUR;
941
942	return changed;	710	return changed;
943	}	711	}
944		712
945	static inline unsigned long	713	bool
946	compute_tint_shade_flags (rxvt_color *tint, int shade)	714	rxvt_term::bg_set_tint (rxvt_color &new_tint)
947	{	715	{
948	unsigned long flags = 0;	716	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
949	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
950	bool has_shade = shade != 100;
951
952	if (tint)
953	{	717	{
		718	tint = new_tint;
		719	bg_flags |= BG_TINT_SET;
		720
		721	rgba c;
954	tint->get (c);	722	tint.get (c);
955	if (!has_shade
956	&& (c.r <= 0x00ff || c.r >= 0xff00)	723	if ((c.r <= 0x00ff || c.r >= 0xff00)
957	&& (c.g <= 0x00ff || c.g >= 0xff00)	724	&& (c.g <= 0x00ff || c.g >= 0xff00)
958	&& (c.b <= 0x00ff || c.b >= 0xff00))	725	&& (c.b <= 0x00ff || c.b >= 0xff00))
959	flags |= rxvt_term::BG_TINT_BITAND;	726	bg_flags |= BG_TINT_BITAND;
960	}	727	else
		728	bg_flags &= ~BG_TINT_BITAND;
961		729
962	if (has_shade || tint)
963	flags |= rxvt_term::BG_NEEDS_TINT;
964
965	return flags;
966	}
967
968	bool
969	rxvt_term::bg_set_tint (rxvt_color &new_tint)
970	{
971	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
972	{
973	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
974	tint = new_tint;
975	bg_flags = (bg_flags & ~BG_TINT_FLAGS) | new_flags | BG_TINT_SET;
976	return true;	730	return true;
977	}	731	}
978		732
979	return false;	733	return false;
980	}	734	}
981		735
982	bool	736	bool
983	rxvt_term::bg_set_shade (const char *shade_str)	737	rxvt_term::bg_set_shade (const char *shade_str)
984	{	738	{
985	int new_shade = (shade_str) ? atoi (shade_str) : 100;	739	int new_shade = atoi (shade_str);
986		740
987	clamp_it (new_shade, -100, 200);	741	clamp_it (new_shade, -100, 200);
988	if (new_shade < 0)	742	if (new_shade < 0)
989	new_shade = 200 - (100 + new_shade);	743	new_shade = 200 - (100 + new_shade);
990		744
991	if (new_shade != shade)	745	if (new_shade != shade)
992	{	746	{
993	unsigned long new_flags = compute_tint_shade_flags ((bg_flags & BG_TINT_SET) ? &tint : NULL, new_shade);
994	shade = new_shade;	747	shade = new_shade;
995	bg_flags = (bg_flags & ~BG_TINT_FLAGS) | new_flags;
996	return true;	748	return true;
997	}	749	}
998		750
999	return false;	751	return false;
1000	}	752	}
…		…
1021	params[i+2] = XDoubleToFixed (kernel[i] / sum);	773	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1022	}	774	}
1023	#endif	775	#endif
1024		776
1025	bool	777	bool
1026	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	778	rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
1027	{	779	{
1028	bool ret = false;	780	bool ret = false;
1029	#if XRENDER	781	#if XRENDER
		782	if (!(bg_flags & BG_HAS_RENDER_CONV))
		783	return false;
		784
1030	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;	785	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1031	double *kernel = (double *)malloc (size * sizeof (double));	786	double *kernel = (double *)malloc (size * sizeof (double));
1032	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));	787	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1033		788
1034	XRenderPictureAttributes pa;	789	XRenderPictureAttributes pa;
1035	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	790	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1036		791
		792	pa.repeat = RepeatPad;
1037	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);
1038	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	795	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		796	XFreePixmap (dpy, tmp);
1039		797
1040	if (kernel && params && src && dst)	798	if (kernel && params)
1041	{	799	{
1042	if (h_blurRadius)
1043	{
1044	size = h_blurRadius * 2 + 1;	800	size = h_blurRadius * 2 + 1;
1045	get_gaussian_kernel (h_blurRadius, size, kernel, params);	801	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1046		802
1047	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	803	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1048	XRenderComposite (dpy,	804	XRenderComposite (dpy,
1049	PictOpSrc,	805	PictOpSrc,
1050	src,	806	src,
1051	None,	807	None,
1052	dst,	808	dst,
1053	0, 0,	809	0, 0,
1054	0, 0,	810	0, 0,
1055	0, 0,	811	0, 0,
1056	width, height);	812	width, height);
1057	}
1058		813
1059	if (v_blurRadius)	814	::swap (src, dst);
1060	{	815
1061	size = v_blurRadius * 2 + 1;	816	size = v_blurRadius * 2 + 1;
1062	get_gaussian_kernel (v_blurRadius, size, kernel, params);	817	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1063	::swap (params[0], params[1]);	818	::swap (params[0], params[1]);
1064		819
1065	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	820	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1066	XRenderComposite (dpy,	821	XRenderComposite (dpy,
1067	PictOpSrc,	822	PictOpSrc,
1068	src,	823	src,
1069	None,	824	None,
1070	dst,	825	dst,
1071	0, 0,	826	0, 0,
1072	0, 0,	827	0, 0,
1073	0, 0,	828	0, 0,
1074	width, height);	829	width, height);
1075	}
1076		830
1077	ret = true;	831	ret = true;
1078	}	832	}
1079		833
1080	free (kernel);	834	free (kernel);
…		…
1084	#endif	838	#endif
1085	return ret;	839	return ret;
1086	}	840	}
1087		841
1088	bool	842	bool
1089	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	843	rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
1090	{	844	{
1091	bool ret = false;	845	bool ret = false;
1092		846
1093	if (bg_flags & BG_TINT_BITAND)	847	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
1094	{	848	{
1095	XGCValues gcv;	849	XGCValues gcv;
1096	GC gc;	850	GC gc;
1097		851
1098	/* In this case we can tint image server-side getting significant	852	/* In this case we can tint image server-side getting significant
…		…
1107	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);	861	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1108	ret = true;	862	ret = true;
1109	XFreeGC (dpy, gc);	863	XFreeGC (dpy, gc);
1110	}	864	}
1111	}	865	}
1112	else
1113	{
1114	# if XRENDER	866	# if XRENDER
		867	else if (bg_flags & BG_HAS_RENDER)
		868	{
1115	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	869	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1116		870
1117	if (bg_flags & BG_TINT_SET)	871	if (bg_flags & BG_TINT_SET)
1118	tint.get (c);	872	tint.get (c);
1119		873
1120	if (shade <= 100)	874	if (shade <= 100)
1121	{	875	{
1122	c.r = (c.r * shade) / 100;	876	c.r = c.r * shade / 100;
1123	c.g = (c.g * shade) / 100;	877	c.g = c.g * shade / 100;
1124	c.b = (c.b * shade) / 100;	878	c.b = c.b * shade / 100;
1125	}	879	}
1126	else	880	else
1127	{	881	{
1128	c.r = (c.r * (200 - shade)) / 100;	882	c.r = c.r * (200 - shade) / 100;
1129	c.g = (c.g * (200 - shade)) / 100;	883	c.g = c.g * (200 - shade) / 100;
1130	c.b = (c.b * (200 - shade)) / 100;	884	c.b = c.b * (200 - shade) / 100;
1131	}	885	}
1132		886
1133	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1134	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	887	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1135	XRenderPictureAttributes pa;
1136		888
1137	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	889	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1138		890
1139	pa.repeat = True;	891	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1140		892
1141	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);	893	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1142	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1143	XFreePixmap (dpy, overlay_pmap);
1144		894
1145	pa.component_alpha = True;
1146	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1147	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1148	XFreePixmap (dpy, mask_pmap);
1149
1150	if (mask_pic && overlay_pic && back_pic)
1151	{
1152	XRenderColor mask_c;	895	XRenderColor mask_c;
1153		896
1154	mask_c.red = mask_c.green = mask_c.blue = 0;
1155	mask_c.alpha = 0xffff;	897	mask_c.alpha = 0xffff;
		898	mask_c.red =
		899	mask_c.green =
		900	mask_c.blue = 0;
		901	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		902
		903	mask_c.alpha = 0;
		904	mask_c.red = 0xffff - c.r;
		905	mask_c.green = 0xffff - c.g;
		906	mask_c.blue = 0xffff - c.b;
		907	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		908
		909	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		910
		911	if (shade > 100)
		912	{
		913	mask_c.alpha = 0;
		914	mask_c.red =
		915	mask_c.green =
		916	mask_c.blue = 0xffff * (shade - 100) / 100;
1156	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);	917	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1157		918
1158	mask_c.alpha = 0;
1159	mask_c.red = 0xffff - c.r;
1160	mask_c.green = 0xffff - c.g;
1161	mask_c.blue = 0xffff - c.b;
1162	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1163	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1164
1165	if (shade > 100)
1166	{
1167	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1168	mask_c.alpha = 0;
1169	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1170
1171	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);
1172	}
1173
1174	ret = true;
1175	}	920	}
		921
		922	ret = true;
1176		923
1177	XRenderFreePicture (dpy, mask_pic);	924	XRenderFreePicture (dpy, mask_pic);
1178	XRenderFreePicture (dpy, overlay_pic);	925	XRenderFreePicture (dpy, overlay_pic);
1179	XRenderFreePicture (dpy, back_pic);	926	XRenderFreePicture (dpy, back_pic);
		927	}
1180	# endif	928	# endif
1181	}
1182		929
1183	return ret;	930	return ret;
1184	}	931	}
1185		932
1186	/* make_transparency_pixmap()	933	/*
1187	* 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
1188	* 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
1189	* our window.	936	* our window.
1190	*/	937	*/
1191	unsigned long	938	bool
1192	rxvt_term::make_transparency_pixmap ()	939	rxvt_term::make_transparency_pixmap ()
1193	{	940	{
1194	unsigned long result = 0;	941	bool ret = false;
1195		942
1196	/* 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
1197	* be always up-to-date, so let's use it :	944	* be always up-to-date, so let's use it :
1198	*/	945	*/
1199	int screen = display->screen;	946	int screen = display->screen;
…		…
1235	if (root_pixmap != None && root_depth != depth)	982	if (root_pixmap != None && root_depth != depth)
1236	{	983	{
1237	#if XRENDER	984	#if XRENDER
1238	if (bg_flags & BG_HAS_RENDER)	985	if (bg_flags & BG_HAS_RENDER)
1239	{	986	{
1240	XRenderPictureAttributes pa;	987	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1241		988
1242	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));	989	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1243	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);	990	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1244		991
1245	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1246	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	992	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1247	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	993	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1248		994
1249	if (src && dst)
1250	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);
1251	else
1252	{
1253	XFreePixmap (dpy, recoded_root_pmap);
1254	root_pixmap = None;
1255	}
1256		996
1257	XRenderFreePicture (dpy, src);	997	XRenderFreePicture (dpy, src);
1258	XRenderFreePicture (dpy, dst);	998	XRenderFreePicture (dpy, dst);
1259	}	999	}
1260	else	1000	else
1261	#endif	1001	#endif
1262	root_pixmap = None;	1002	recoded_root_pmap = None;
1263	}	1003	}
1264		1004
1265	if (root_pixmap == None)	1005	if (recoded_root_pmap == None)
1266	return 0;	1006	return 0;
1267		1007
1268	if (bg_pixmap == None	1008	if (bg_pixmap == None
1269	|| bg_pmap_width != window_width	1009	|| bg_pmap_width != window_width
1270	|| bg_pmap_height != window_height)	1010	|| bg_pmap_height != window_height)
…		…
1274	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);	1014	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1275	bg_pmap_width = window_width;	1015	bg_pmap_width = window_width;
1276	bg_pmap_height = window_height;	1016	bg_pmap_height = window_height;
1277	}	1017	}
1278		1018
1279	if (bg_pixmap == None)
1280	return 0;
1281
1282	/* straightforward pixmap copy */	1019	/* straightforward pixmap copy */
1283	while (sx < 0) sx += (int)root_width;	1020	while (sx < 0) sx += root_pmap_width;
1284	while (sy < 0) sy += (int)root_height;	1021	while (sy < 0) sy += root_pmap_height;
1285		1022
1286	gcv.tile = recoded_root_pmap;	1023	gcv.tile = recoded_root_pmap;
1287	gcv.fill_style = FillTiled;	1024	gcv.fill_style = FillTiled;
1288	gcv.ts_x_origin = -sx;	1025	gcv.ts_x_origin = -sx;
1289	gcv.ts_y_origin = -sy;	1026	gcv.ts_y_origin = -sy;
1290	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	1027	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1291		1028
1292	if (gc)	1029	if (gc)
1293	{	1030	{
1294	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);	1031	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1295	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
1296	XFreeGC (dpy, gc);	1062	XFreeGC (dpy, gc);
1297
1298	if (!(bg_flags & BG_CLIENT_RENDER))
1299	{
1300	if ((bg_flags & BG_NEEDS_BLUR)
1301	&& (bg_flags & BG_HAS_RENDER_CONV))
1302	{
1303	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1304	result &= ~BG_NEEDS_BLUR;
1305	}
1306	if ((bg_flags & BG_NEEDS_TINT)
1307	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1308	{
1309	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1310	result &= ~BG_NEEDS_TINT;
1311	}
1312	} /* server side rendering completed */
1313	}	1063	}
1314		1064
1315	if (recoded_root_pmap != root_pixmap)	1065	if (recoded_root_pmap != root_pixmap)
1316	XFreePixmap (dpy, recoded_root_pmap);	1066	XFreePixmap (dpy, recoded_root_pmap);
1317		1067
1318	return result;	1068	return ret;
1319	}	1069	}
1320		1070
1321	void	1071	void
1322	rxvt_term::bg_set_root_pixmap ()	1072	rxvt_term::bg_set_root_pixmap ()
1323	{	1073	{
…		…
1327		1077
1328	root_pixmap = new_root_pixmap;	1078	root_pixmap = new_root_pixmap;
1329	}	1079	}
1330	# endif /* ENABLE_TRANSPARENCY */	1080	# endif /* ENABLE_TRANSPARENCY */
1331		1081
1332	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1333	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1334	# endif
1335
1336	bool	1082	bool
1337	rxvt_term::bg_render ()	1083	rxvt_term::bg_render ()
1338	{	1084	{
1339	unsigned long tr_flags = 0;
1340
1341	bg_invalidate ();	1085	bg_invalidate ();
1342	# ifdef ENABLE_TRANSPARENCY	1086	# ifdef ENABLE_TRANSPARENCY
1343	if (bg_flags & BG_IS_TRANSPARENT)	1087	if (bg_flags & BG_IS_TRANSPARENT)
1344	{	1088	{
1345	/* we need to re-generate transparency pixmap in that case ! */	1089	/* we need to re-generate transparency pixmap in that case ! */
1346	tr_flags = make_transparency_pixmap ();	1090	if (make_transparency_pixmap ())
1347	if (tr_flags == 0)
1348	return false;
1349	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1350	bg_flags |= BG_IS_VALID;	1091	bg_flags |= BG_IS_VALID;
1351	}	1092	}
1352	# endif	1093	# endif
1353		1094
1354	# ifdef BG_IMAGE_FROM_FILE	1095	# ifdef BG_IMAGE_FROM_FILE
1355	if (have_image	1096	if (bg_image.flags & IM_IS_SET)
1356	|| (tr_flags & BG_EFFECTS_FLAGS))
1357	{	1097	{
1358	if (render_image (tr_flags))	1098	if (render_image (bg_image))
1359	bg_flags |= BG_IS_VALID;	1099	bg_flags |= BG_IS_VALID;
1360	}
1361	# endif
1362
1363	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1364	XImage *result = NULL;
1365
1366	if (tr_flags && !(bg_flags & BG_IS_VALID))
1367	{
1368	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1369	}
1370
1371	if (result)
1372	{
1373	/* our own client-side tinting */
1374	if (tr_flags & BG_NEEDS_TINT)
1375	{
1376	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1377	if (bg_flags & BG_TINT_SET)
1378	tint.get (c);
1379	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1380	}
1381
1382	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1383
1384	if (gc)
1385	{
1386	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1387
1388	XFreeGC (dpy, gc);
1389	bg_flags |= BG_IS_VALID;
1390	}
1391
1392	XDestroyImage (result);
1393	}	1100	}
1394	# endif	1101	# endif
1395		1102
1396	if (!(bg_flags & BG_IS_VALID))	1103	if (!(bg_flags & BG_IS_VALID))
1397	{	1104	{
…		…
1434	#endif	1141	#endif
1435	}	1142	}
1436		1143
1437	#endif /* HAVE_BG_PIXMAP */	1144	#endif /* HAVE_BG_PIXMAP */
1438		1145
1439	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	1146	#ifdef ENABLE_TRANSPARENCY
1440	/* taken from aterm-0.4.2 */	1147	/* based on code from aterm-0.4.2 */
1441		1148
1442	static void	1149	static inline void
1443	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)
1444	{	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;
1445	int sh_r, sh_g, sh_b;	1165	int sh_r, sh_g, sh_b;
1446	uint32_t mask_r, mask_g, mask_b;	1166	uint32_t mask_r, mask_g, mask_b;
1447	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;	1167	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1448	rgba low;	1168	unsigned short low;
1449	rgba high;
1450	int i;
1451	int host_byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;	1169	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1452		1170
1453	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;	1171	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1454		1172
1455	/* for convenience */	1173	/* for convenience */
1456	mask_r = visual->red_mask;	1174	mask_r = visual->red_mask;
1457	mask_g = visual->green_mask;	1175	mask_g = visual->green_mask;
1458	mask_b = visual->blue_mask;	1176	mask_b = visual->blue_mask;
1459		1177
1460	/* boring lookup table pre-initialization */	1178	/* boring lookup table pre-initialization */
1461	switch (ximage->depth)	1179	sh_r = ecb_ctz32 (mask_r);
1462	{	1180	sh_g = ecb_ctz32 (mask_g);
1463	case 15:	1181	sh_b = ecb_ctz32 (mask_b);
1464	if ((mask_r != 0x7c00) ||	1182
1465	(mask_g != 0x03e0) ||	1183	size_r = mask_r >> sh_r;
1466	(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)
1467	return;	1188	return;
1468	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));
1469	lookup_r = lookup;	1191	lookup_r = lookup;
1470	lookup_g = lookup+32;	1192	lookup_g = lookup + size_r;
1471	lookup_b = lookup+32+32;	1193	lookup_b = lookup + size_r + size_g;
1472	sh_r = 10;	1194
1473	sh_g = 5;	1195	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1474	sh_b = 0;	1196
1475	break;	1197	if (bg_flags & BG_TINT_SET)
1476	case 16:	1198	tint.get (c);
1477	if ((mask_r != 0xf800) ||
1478	(mask_g != 0x07e0) ||
1479	(mask_b != 0x001f))
1480	return;
1481	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1482	lookup_r = lookup;
1483	lookup_g = lookup+32;
1484	lookup_b = lookup+32+64;
1485	sh_r = 11;
1486	sh_g = 5;
1487	sh_b = 0;
1488	break;
1489	case 24:
1490	if ((mask_r != 0xff0000) ||
1491	(mask_g != 0x00ff00) ||
1492	(mask_b != 0x0000ff))
1493	return;
1494	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1495	lookup_r = lookup;
1496	lookup_g = lookup+256;
1497	lookup_b = lookup+256+256;
1498	sh_r = 16;
1499	sh_g = 8;
1500	sh_b = 0;
1501	break;
1502	case 32:
1503	if ((mask_r != 0xff0000) ||
1504	(mask_g != 0x00ff00) ||
1505	(mask_b != 0x0000ff))
1506	return;
1507	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1508	lookup_r = lookup;
1509	lookup_g = lookup+256;
1510	lookup_b = lookup+256+256;
1511	sh_r = 16;
1512	sh_g = 8;
1513	sh_b = 0;
1514	break;
1515	default:
1516	return; /* we do not support this color depth */
1517	}
1518		1199
1519	/* prepare limits for color transformation (each channel is handled separately) */	1200	/* prepare limits for color transformation (each channel is handled separately) */
1520	if (shade > 100)	1201	if (shade > 100)
1521	{	1202	{
1522	shade = 200 - shade;
1523
1524	high.r = c.r * shade / 100;
1525	high.g = c.g * shade / 100;
1526	high.b = c.b * shade / 100;
1527
1528	low.r = 65535 * (100 - shade) / 100;	1203	c.r = c.r * (200 - shade) / 100;
1529	low.g = 65535 * (100 - shade) / 100;	1204	c.g = c.g * (200 - shade) / 100;
1530	low.b = 65535 * (100 - shade) / 100;	1205	c.b = c.b * (200 - shade) / 100;
		1206
		1207	low = 0xffff * (shade - 100) / 100;
1531	}	1208	}
1532	else	1209	else
1533	{	1210	{
1534	high.r = c.r * shade / 100;	1211	c.r = c.r * shade / 100;
1535	high.g = c.g * shade / 100;	1212	c.g = c.g * shade / 100;
1536	high.b = c.b * shade / 100;	1213	c.b = c.b * shade / 100;
1537		1214
1538	low.r = low.g = low.b = 0;	1215	low = 0;
1539	}	1216	}
1540		1217
1541	/* fill our lookup tables */	1218	/* fill our lookup tables */
1542	for (i = 0; i <= mask_r>>sh_r; i++)	1219	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1543	{	1220	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1544	uint32_t tmp;	1221	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1545	tmp = i * high.r;
1546	tmp += (mask_r>>sh_r) * low.r;
1547	lookup_r[i] = (tmp/65535)<<sh_r;
1548	}
1549	for (i = 0; i <= mask_g>>sh_g; i++)
1550	{
1551	uint32_t tmp;
1552	tmp = i * high.g;
1553	tmp += (mask_g>>sh_g) * low.g;
1554	lookup_g[i] = (tmp/65535)<<sh_g;
1555	}
1556	for (i = 0; i <= mask_b>>sh_b; i++)
1557	{
1558	uint32_t tmp;
1559	tmp = i * high.b;
1560	tmp += (mask_b>>sh_b) * low.b;
1561	lookup_b[i] = (tmp/65535)<<sh_b;
1562	}
1563		1222
1564	/* apply table to input image (replacing colors by newly calculated ones) */	1223	/* apply table to input image (replacing colors by newly calculated ones) */
1565	if (ximage->bits_per_pixel == 32	1224	if (ximage->bits_per_pixel == 32
1566	&& (ximage->depth == 24 || ximage->depth == 32)
1567	&& ximage->byte_order == host_byte_order)	1225	&& ximage->byte_order == host_byte_order)
1568	{	1226	{
1569	uint32_t *p1, *pf, *p, *pl;	1227	char *line = ximage->data;
1570	p1 = (uint32_t *) ximage->data;
1571	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1572		1228
1573	while (p1 < pf)	1229	for (int y = 0; y < ximage->height; y++)
1574	{
1575	p = p1;
1576	pl = p1 + ximage->width;
1577	for (; p < pl; p++)
1578	{	1230	{
1579	*p = lookup_r[(*p & 0xff0000) >> 16] |	1231	uint32_t *p = (uint32_t *)line;
1580	lookup_g[(*p & 0x00ff00) >> 8] |	1232	for (int x = 0; x < ximage->width; x++)
1581	lookup_b[(*p & 0x0000ff)] |
1582	(*p & 0xff000000);
1583	}	1233	{
1584	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;
1585	}	1240	}
1586	}	1241	}
1587	else	1242	else
1588	{	1243	{
1589	for (int y = 0; y < ximage->height; y++)	1244	for (int y = 0; y < ximage->height; y++)
…		…
1597	}	1252	}
1598	}	1253	}
1599		1254
1600	free (lookup);	1255	free (lookup);
1601	}	1256	}
1602	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1257	#endif /* ENABLE_TRANSPARENCY */

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