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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 1.216 by sf-exg, Sun May 20 16:23:42 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	min_it (w, 1000);
252	{	280	min_it (h, 1000);
253	if (!strcasecmp (arr[i], "style=tiled"))	281	clamp_it (x, -100, 200);
254	{	282	clamp_it (y, -100, 200);
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		283
292	// deprecated	284	if (flags != new_flags
293	else if (!strcasecmp (arr[i], "tile"))	285	|| h_scale != w
294	{	286	|| v_scale != h
295	new_flags |= BG_TILE;	287	|| h_align != x
296	w = h = noScale;	288	|| 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	}	289	{
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;	290	flags = new_flags;
		291	h_scale = w;
		292	v_scale = h;
		293	h_align = x;
		294	v_align = y;
345	changed = true;	295	changed = true;
346	}	296	}
347		297
		298	if (!(flags & IM_TILE)
		299	|| h_scale || v_scale
		300	|| (!(flags & IM_ROOT_ALIGN) && (h_align || v_align)))
		301	flags |= IM_IS_SIZE_SENSITIVE;
		302	else
		303	flags &= ~IM_IS_SIZE_SENSITIVE;
		304
348	return changed;	305	return changed;
349	}	306	}
350		307
351	void	308	void
352	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	309	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
353	{	310	{
		311	int image_width = image.width ();
		312	int image_height = image.height ();
354	int target_width = szHint.width;	313	int target_width = szHint.width;
355	int target_height = szHint.height;	314	int target_height = szHint.height;
356		315
357	if (bg_flags & BG_PROP_SCALE)	316	w = image.h_scale * target_width / 100;
		317	h = image.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)
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 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 XRENDER
		361	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		362	if (format)
		363	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
		364	else
		365	#endif
		366	alpha_mask = 0;
		367
		368	width_r = ecb_popcount32 (visual->red_mask);
		369	width_g = ecb_popcount32 (visual->green_mask);
		370	width_b = ecb_popcount32 (visual->blue_mask);
		371	width_a = ecb_popcount32 (alpha_mask);
		372
		373	if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
		374	return false;
		375
		376	sh_r = ecb_ctz32 (visual->red_mask);
		377	sh_g = ecb_ctz32 (visual->green_mask);
		378	sh_b = ecb_ctz32 (visual->blue_mask);
		379	sh_a = ecb_ctz32 (alpha_mask);
		380
		381	if (width > 32767 || height > 32767)
		382	return false;
		383
		384	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, 0,
		385	width, height, 32, 0);
		386	if (!ximage)
		387	return false;
		388
		389	if (height > INT_MAX / ximage->bytes_per_line
		390	|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
418	}	391	{
419		392	XDestroyImage (ximage);
420	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)	393	return false;
421	{	394	}
422	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,	395
423	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,	396	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
424	100, ASIMAGE_QUALITY_DEFAULT);	397
425	if (tmp)	398	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
		399	channels = gdk_pixbuf_get_n_channels (pixbuf);
		400	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
		401	line = ximage->data;
		402
		403	rgba c (0, 0, 0);
		404
		405	if (channels == 4 && alpha_mask == 0)
		406	{
		407	pix_colors[Color_bg].get (c);
		408	c.r >>= 8;
		409	c.g >>= 8;
		410	c.b >>= 8;
		411	}
		412
		413	for (int y = 0; y < height; y++)
		414	{
		415	for (int x = 0; x < width; x++)
		416	{
		417	unsigned char *pixel = row + x * channels;
		418	uint32_t value;
		419	unsigned char r, g, b, a;
		420
		421	if (channels == 4)
426	{	422	{
427	destroy_asimage (&background);	423	a = pixel[3];
428	background = tmp;	424	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
		425	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
		426	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
		427	}
		428	else
		429	{
		430	a = 0xff;
		431	r = pixel[0];
		432	g = pixel[1];
		433	b = pixel[2];
		434	}
		435
		436	value = ((r >> (8 - width_r)) << sh_r)
		437	| ((g >> (8 - width_g)) << sh_g)
		438	| ((b >> (8 - width_b)) << sh_b)
		439	| ((a >> (8 - width_a)) << sh_a);
		440
		441	if (ximage->bits_per_pixel == 32)
		442	((uint32_t *)line)[x] = value;
		443	else
		444	XPutPixel (ximage, x, y, value);
429	}	445	}
430	}
431	# endif
432		446
433	ASImage *result = 0;	447	row += rowstride;
		448	line += ximage->bytes_per_line;
		449	}
		450
		451	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
		452	XDestroyImage (ximage);
		453	return true;
		454	}
		455
		456	bool
		457	rxvt_term::render_image (rxvt_image &image)
		458	{
		459	GdkPixbuf *pixbuf = image.pixbuf;
		460	if (!pixbuf)
		461	return false;
		462
		463	bool need_blend = bg_flags & BG_IS_VALID;
		464
		465	if (need_blend
		466	&& !(bg_flags & BG_HAS_RENDER))
		467	return false;
		468
		469	GdkPixbuf *result;
		470
		471	int image_width = gdk_pixbuf_get_width (pixbuf);
		472	int image_height = gdk_pixbuf_get_height (pixbuf);
434		473
435	int target_width = szHint.width;	474	int target_width = szHint.width;
436	int target_height = szHint.height;	475	int target_height = szHint.height;
437	int new_pmap_width = target_width;	476	int new_pmap_width = target_width;
438	int new_pmap_height = target_height;	477	int new_pmap_height = target_height;
…		…
440	int x = 0;	479	int x = 0;
441	int y = 0;	480	int y = 0;
442	int w = 0;	481	int w = 0;
443	int h = 0;	482	int h = 0;
444		483
445	if (original_asim)	484	get_image_geometry (image, w, h, x, y);
446	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
447		485
448	if (!original_asim
449	|| (!(bg_flags & BG_ROOT_ALIGN)
450	&& (x >= target_width
451	|| y >= target_height
452	|| (x + w <= 0)
453	|| (y + h <= 0))))
454	{
455	if (background)
456	{
457	new_pmap_width = background->width;
458	new_pmap_height = background->height;
459	result = background;
460
461	if (background_tint != TINT_LEAVE_SAME)
462	{
463	ASImage *tmp = tile_asimage (asv, background, 0, 0,
464	target_width, target_height, background_tint,
465	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
466	if (tmp)
467	result = tmp;
468	}
469	}
470	else
471	new_pmap_width = new_pmap_height = 0;
472	}
473	else
474	{
475	result = original_asim;
476
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
580	|| bg_pmap_width != new_pmap_width
581	|| bg_pmap_height != new_pmap_height)
582	{
583	if (bg_pixmap)
584	XFreePixmap (dpy, bg_pixmap);
585	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
586	bg_pmap_width = new_pmap_width;
587	bg_pmap_height = new_pmap_height;
588	}
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
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)	486	if (!(image.flags & IM_ROOT_ALIGN)
740	&& (x >= target_width	487	&& (x >= target_width
741	|| y >= target_height	488	|| y >= target_height
742	|| (x + w <= 0)	489	|| x + w <= 0
743	|| (y + h <= 0)))	490	|| y + h <= 0))
744	return false;	491	return false;
745		492
746	result = pixbuf;	493	result = pixbuf;
747		494
748	if ((w != image_width)	495	if (w != image_width
749	|| (h != image_height))	496	|| h != image_height)
750	{	497	{
751	result = gdk_pixbuf_scale_simple (pixbuf,	498	result = gdk_pixbuf_scale_simple (pixbuf,
752	w, h,	499	w, h,
753	GDK_INTERP_BILINEAR);	500	GDK_INTERP_BILINEAR);
754	}	501	}
…		…
758		505
759	bool ret = false;	506	bool ret = false;
760		507
761	XGCValues gcv;	508	XGCValues gcv;
762	GC gc;	509	GC gc;
763	Pixmap root_pmap;	510	Pixmap tmp_pixmap;
764		511
765	image_width = gdk_pixbuf_get_width (result);	512	image_width = gdk_pixbuf_get_width (result);
766	image_height = gdk_pixbuf_get_height (result);	513	image_height = gdk_pixbuf_get_height (result);
767		514
768	if (tr_flags)	515	if (need_blend)
769	{	516	{
770	root_pmap = bg_pixmap;	517	tmp_pixmap = bg_pixmap;
771	bg_pixmap = None;	518	bg_pixmap = None;
772	}	519	}
773	else	520	else
774	{	521	{
775	if (bg_flags & BG_TILE)	522	if (image.flags & IM_TILE)
776	{	523	{
777	new_pmap_width = min (image_width, target_width);	524	new_pmap_width = min (image_width, target_width);
778	new_pmap_height = min (image_height, target_height);	525	new_pmap_height = min (image_height, target_height);
779	}	526	}
780	}	527	}
…		…
793	gcv.foreground = pix_colors[Color_bg];	540	gcv.foreground = pix_colors[Color_bg];
794	gc = XCreateGC (dpy, vt, GCForeground, &gcv);	541	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
795		542
796	if (gc)	543	if (gc)
797	{	544	{
798	if (bg_flags & BG_TILE)	545	if (image.flags & IM_TILE)
799	{	546	{
800	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);	547	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
801	pixbuf_to_pixmap (result, tile, gc,	548	pixbuf_to_pixmap (result, tile, gc,
802	0, 0,	549	0, 0,
803	0, 0,	550	0, 0,
…		…
831	dst_x, dst_y,	578	dst_x, dst_y,
832	dst_width, dst_height);	579	dst_width, dst_height);
833	}	580	}
834		581
835	#if XRENDER	582	#if XRENDER
836	if (tr_flags)	583	if (need_blend)
837	{	584	{
838	XRenderPictureAttributes pa;
839
840	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	585	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		586
841	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	587	Picture src = XRenderCreatePicture (dpy, tmp_pixmap, format, 0, 0);
842		588
843	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
844	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	589	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
845		590
846	pa.repeat = True;	591	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		592
852	XRenderColor mask_c;	593	XRenderColor mask_c;
853		594
854	mask_c.alpha = 0x8000;	595	mask_c.alpha = 0x8000;
855	mask_c.red = 0;	596	mask_c.red =
856	mask_c.green = 0;	597	mask_c.green =
857	mask_c.blue = 0;	598	mask_c.blue = 0;
858	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);	599	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		600
859	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);	601	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
860		602
861	XRenderFreePicture (dpy, src);	603	XRenderFreePicture (dpy, src);
862	XRenderFreePicture (dpy, dst);	604	XRenderFreePicture (dpy, dst);
863	XRenderFreePicture (dpy, mask);	605	XRenderFreePicture (dpy, mask);
…		…
870	}	612	}
871		613
872	if (result != pixbuf)	614	if (result != pixbuf)
873	g_object_unref (result);	615	g_object_unref (result);
874		616
875	if (tr_flags)	617	if (need_blend)
876	XFreePixmap (dpy, root_pmap);	618	XFreePixmap (dpy, tmp_pixmap);
877		619
878	return ret;	620	return ret;
879	}	621	}
880	# endif /* HAVE_PIXBUF */	622	# endif /* HAVE_PIXBUF */
881		623
882	bool	624	bool
883	rxvt_term::bg_set_file (const char *file)	625	rxvt_image::set_file (const char *file)
884	{	626	{
885	if (!file || !*file)	627	if (!file || !*file)
886	return false;	628	return false;
887		629
		630	bool ret = false;
888	if (const char *p = strchr (file, ';'))	631	const char *p = strchr (file, ';');
		632
		633	if (p)
889	{	634	{
890	size_t len = p - file;	635	size_t len = p - file;
891	char *f = rxvt_temp_buf<char> (len + 1);	636	char *f = rxvt_temp_buf<char> (len + 1);
892	memcpy (f, file, len);	637	memcpy (f, file, len);
893	f[len] = '\0';	638	f[len] = '\0';
894	file = f;	639	file = f;
895	}	640	}
896		641
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	642	# ifdef HAVE_PIXBUF
912	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	643	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
913	if (image)	644	if (image)
914	{	645	{
915	if (pixbuf)	646	if (pixbuf)
916	g_object_unref (pixbuf);	647	g_object_unref (pixbuf);
917	pixbuf = image;	648	pixbuf = image;
918	bg_flags |= BG_IS_FROM_FILE;
919	return true;	649	ret = true;
920	}	650	}
921	# endif	651	# endif
922		652
		653	if (ret)
		654	{
		655	flags = IM_IS_SET | IM_IS_SIZE_SENSITIVE;
		656	h_scale = v_scale = defaultScale;
		657	h_align = v_align = defaultAlign;
		658
		659	if (p)
		660	set_geometry (p + 1);
		661	}
		662
923	return false;	663	return ret;
924	}	664	}
925		665
926	# endif /* BG_IMAGE_FROM_FILE */	666	# endif /* BG_IMAGE_FROM_FILE */
927		667
928	# ifdef ENABLE_TRANSPARENCY	668	# 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	669	bool
942	rxvt_term::bg_set_blur (const char *geom)	670	rxvt_term::bg_set_blur (const char *geom)
943	{	671	{
944	bool changed = false;	672	bool changed = false;
945	unsigned int hr, vr;	673	unsigned int hr, vr;
…		…
964	{	692	{
965	changed = true;	693	changed = true;
966	v_blurRadius = vr;	694	v_blurRadius = vr;
967	}	695	}
968		696
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;	697	return changed;
975	}	698	}
976		699
977	void	700	bool
978	rxvt_term::set_tint_shade_flags ()	701	rxvt_term::bg_set_tint (rxvt_color &new_tint)
979	{	702	{
980	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	703	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
981	bool has_shade = shade != 100;	704	{
982		705	tint = new_tint;
983	bg_flags &= ~BG_TINT_FLAGS;	706	bg_flags |= BG_TINT_SET;
984		707
985	if (bg_flags & BG_TINT_SET)	708	rgba c;
986	{
987	tint.get (c);	709	tint.get (c);
988	if (!has_shade
989	&& (c.r <= 0x00ff || c.r >= 0xff00)	710	if ((c.r <= 0x00ff || c.r >= 0xff00)
990	&& (c.g <= 0x00ff || c.g >= 0xff00)	711	&& (c.g <= 0x00ff || c.g >= 0xff00)
991	&& (c.b <= 0x00ff || c.b >= 0xff00))	712	&& (c.b <= 0x00ff || c.b >= 0xff00))
992	bg_flags |= BG_TINT_BITAND;	713	bg_flags |= BG_TINT_BITAND;
993	}	714	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;	715	bg_flags &= ~BG_TINT_BITAND;
1006	set_tint_shade_flags ();	716
1007	return true;	717	return true;
1008	}	718	}
1009		719
1010	return false;	720	return false;
1011	}	721	}
1012		722
1013	bool	723	bool
1014	rxvt_term::bg_set_shade (const char *shade_str)	724	rxvt_term::bg_set_shade (const char *shade_str)
1015	{	725	{
1016	int new_shade = (shade_str) ? atoi (shade_str) : 100;	726	int new_shade = atoi (shade_str);
1017		727
1018	clamp_it (new_shade, -100, 200);	728	clamp_it (new_shade, -100, 200);
1019	if (new_shade < 0)	729	if (new_shade < 0)
1020	new_shade = 200 - (100 + new_shade);	730	new_shade = 200 - (100 + new_shade);
1021		731
1022	if (new_shade != shade)	732	if (new_shade != shade)
1023	{	733	{
1024	shade = new_shade;	734	shade = new_shade;
1025	set_tint_shade_flags ();
1026	return true;	735	return true;
1027	}	736	}
1028		737
1029	return false;	738	return false;
1030	}	739	}
…		…
1051	params[i+2] = XDoubleToFixed (kernel[i] / sum);	760	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1052	}	761	}
1053	#endif	762	#endif
1054		763
1055	bool	764	bool
1056	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	765	rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
1057	{	766	{
1058	bool ret = false;	767	bool ret = false;
1059	#if XRENDER	768	#if XRENDER
		769	if (!(bg_flags & BG_HAS_RENDER_CONV))
		770	return false;
		771
1060	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;	772	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1061	double *kernel = (double *)malloc (size * sizeof (double));	773	double *kernel = (double *)malloc (size * sizeof (double));
1062	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));	774	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1063		775
1064	XRenderPictureAttributes pa;	776	XRenderPictureAttributes pa;
1065	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	777	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1066		778
		779	pa.repeat = RepeatPad;
1067	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	780	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		781	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
1068	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	782	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		783	XFreePixmap (dpy, tmp);
1069		784
1070	if (kernel && params)	785	if (kernel && params)
1071	{	786	{
1072	if (h_blurRadius)
1073	{
1074	size = h_blurRadius * 2 + 1;	787	size = h_blurRadius * 2 + 1;
1075	get_gaussian_kernel (h_blurRadius, size, kernel, params);	788	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1076		789
1077	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	790	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1078	XRenderComposite (dpy,	791	XRenderComposite (dpy,
1079	PictOpSrc,	792	PictOpSrc,
1080	src,	793	src,
1081	None,	794	None,
1082	dst,	795	dst,
1083	0, 0,	796	0, 0,
1084	0, 0,	797	0, 0,
1085	0, 0,	798	0, 0,
1086	width, height);	799	width, height);
1087	}
1088		800
1089	if (v_blurRadius)	801	::swap (src, dst);
1090	{	802
1091	size = v_blurRadius * 2 + 1;	803	size = v_blurRadius * 2 + 1;
1092	get_gaussian_kernel (v_blurRadius, size, kernel, params);	804	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1093	::swap (params[0], params[1]);	805	::swap (params[0], params[1]);
1094		806
1095	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	807	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1096	XRenderComposite (dpy,	808	XRenderComposite (dpy,
1097	PictOpSrc,	809	PictOpSrc,
1098	src,	810	src,
1099	None,	811	None,
1100	dst,	812	dst,
1101	0, 0,	813	0, 0,
1102	0, 0,	814	0, 0,
1103	0, 0,	815	0, 0,
1104	width, height);	816	width, height);
1105	}
1106		817
1107	ret = true;	818	ret = true;
1108	}	819	}
1109		820
1110	free (kernel);	821	free (kernel);
…		…
1114	#endif	825	#endif
1115	return ret;	826	return ret;
1116	}	827	}
1117		828
1118	bool	829	bool
1119	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	830	rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
1120	{	831	{
1121	bool ret = false;	832	bool ret = false;
1122		833
1123	if (bg_flags & BG_TINT_BITAND)	834	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
1124	{	835	{
1125	XGCValues gcv;	836	XGCValues gcv;
1126	GC gc;	837	GC gc;
1127		838
1128	/* In this case we can tint image server-side getting significant	839	/* In this case we can tint image server-side getting significant
…		…
1137	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);	848	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1138	ret = true;	849	ret = true;
1139	XFreeGC (dpy, gc);	850	XFreeGC (dpy, gc);
1140	}	851	}
1141	}	852	}
1142	else
1143	{
1144	# if XRENDER	853	# if XRENDER
		854	else if (bg_flags & BG_HAS_RENDER)
		855	{
1145	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	856	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1146		857
1147	if (bg_flags & BG_TINT_SET)	858	if (bg_flags & BG_TINT_SET)
1148	tint.get (c);	859	tint.get (c);
1149		860
…		…
1158	c.r = c.r * (200 - shade) / 100;	869	c.r = c.r * (200 - shade) / 100;
1159	c.g = c.g * (200 - shade) / 100;	870	c.g = c.g * (200 - shade) / 100;
1160	c.b = c.b * (200 - shade) / 100;	871	c.b = c.b * (200 - shade) / 100;
1161	}	872	}
1162		873
1163	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1164	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	874	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1165	XRenderPictureAttributes pa;
1166		875
1167	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	876	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1168		877
1169	pa.repeat = True;	878	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1170		879
1171	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);	880	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		881
1180	XRenderColor mask_c;	882	XRenderColor mask_c;
1181		883
1182	mask_c.alpha = 0xffff;	884	mask_c.alpha = 0xffff;
1183	mask_c.red =	885	mask_c.red =
…		…
1188	mask_c.alpha = 0;	890	mask_c.alpha = 0;
1189	mask_c.red = 0xffff - c.r;	891	mask_c.red = 0xffff - c.r;
1190	mask_c.green = 0xffff - c.g;	892	mask_c.green = 0xffff - c.g;
1191	mask_c.blue = 0xffff - c.b;	893	mask_c.blue = 0xffff - c.b;
1192	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);	894	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		895
1193	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);	896	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1194		897
1195	if (shade > 100)	898	if (shade > 100)
1196	{	899	{
1197	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1198	mask_c.alpha = 0;	900	mask_c.alpha = 0;
		901	mask_c.red =
		902	mask_c.green =
		903	mask_c.blue = 0xffff * (shade - 100) / 100;
1199	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);	904	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1200		905
1201	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);	906	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1202	}	907	}
1203		908
1204	ret = true;	909	ret = true;
1205		910
1206	XRenderFreePicture (dpy, mask_pic);	911	XRenderFreePicture (dpy, mask_pic);
1207	XRenderFreePicture (dpy, overlay_pic);	912	XRenderFreePicture (dpy, overlay_pic);
1208	XRenderFreePicture (dpy, back_pic);	913	XRenderFreePicture (dpy, back_pic);
		914	}
1209	# endif	915	# endif
1210	}
1211		916
1212	return ret;	917	return ret;
1213	}	918	}
1214		919
1215	/*	920	/*
1216	* Builds a pixmap of the same size as the terminal window that contains	921	* 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	922	* the tiled portion of the root pixmap that is supposed to be covered by
1218	* our window.	923	* our window.
1219	*/	924	*/
1220	unsigned long	925	bool
1221	rxvt_term::make_transparency_pixmap ()	926	rxvt_term::make_transparency_pixmap ()
1222	{	927	{
1223	unsigned long result = 0;	928	bool ret = false;
1224		929
1225	/* root dimensions may change from call to call - but Display structure should	930	/* root dimensions may change from call to call - but Display structure should
1226	* be always up-to-date, so let's use it :	931	* be always up-to-date, so let's use it :
1227	*/	932	*/
1228	int screen = display->screen;	933	int screen = display->screen;
…		…
1266	#if XRENDER	971	#if XRENDER
1267	if (bg_flags & BG_HAS_RENDER)	972	if (bg_flags & BG_HAS_RENDER)
1268	{	973	{
1269	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);	974	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1270		975
1271	XRenderPictureAttributes pa;
1272
1273	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));	976	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1274	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);	977	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1275		978
1276	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	979	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1277	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	980	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1278		981
1279	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	982	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
1280		983
1281	XRenderFreePicture (dpy, src);	984	XRenderFreePicture (dpy, src);
1282	XRenderFreePicture (dpy, dst);	985	XRenderFreePicture (dpy, dst);
…		…
1299	bg_pmap_width = window_width;	1002	bg_pmap_width = window_width;
1300	bg_pmap_height = window_height;	1003	bg_pmap_height = window_height;
1301	}	1004	}
1302		1005
1303	/* straightforward pixmap copy */	1006	/* straightforward pixmap copy */
1304	while (sx < 0) sx += root_width;	1007	while (sx < 0) sx += root_pmap_width;
1305	while (sy < 0) sy += root_height;	1008	while (sy < 0) sy += root_pmap_height;
1306		1009
1307	gcv.tile = recoded_root_pmap;	1010	gcv.tile = recoded_root_pmap;
1308	gcv.fill_style = FillTiled;	1011	gcv.fill_style = FillTiled;
1309	gcv.ts_x_origin = -sx;	1012	gcv.ts_x_origin = -sx;
1310	gcv.ts_y_origin = -sy;	1013	gcv.ts_y_origin = -sy;
1311	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	1014	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1312		1015
1313	if (gc)	1016	if (gc)
1314	{	1017	{
1315	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);	1018	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1316	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);	1019	ret = true;
		1020	bool need_blur = h_blurRadius && v_blurRadius;
		1021	bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
		1022
		1023	if (!(bg_flags & BG_CLIENT_RENDER))
		1024	{
		1025	if (need_blur)
		1026	{
		1027	if (blur_pixmap (bg_pixmap, window_width, window_height))
		1028	need_blur = false;
		1029	}
		1030	if (need_tint)
		1031	{
		1032	if (tint_pixmap (bg_pixmap, window_width, window_height))
		1033	need_tint = false;
		1034	}
		1035	if (need_tint)
		1036	{
		1037	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1038	if (ximage)
		1039	{
		1040	/* our own client-side tinting */
		1041	tint_ximage (ximage);
		1042
		1043	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1044	XDestroyImage (ximage);
		1045	}
		1046	}
		1047	} /* server side rendering completed */
		1048
1317	XFreeGC (dpy, gc);	1049	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	}	1050	}
1335		1051
1336	if (recoded_root_pmap != root_pixmap)	1052	if (recoded_root_pmap != root_pixmap)
1337	XFreePixmap (dpy, recoded_root_pmap);	1053	XFreePixmap (dpy, recoded_root_pmap);
1338		1054
1339	return result;	1055	return ret;
1340	}	1056	}
1341		1057
1342	void	1058	void
1343	rxvt_term::bg_set_root_pixmap ()	1059	rxvt_term::bg_set_root_pixmap ()
1344	{	1060	{
…		…
1348		1064
1349	root_pixmap = new_root_pixmap;	1065	root_pixmap = new_root_pixmap;
1350	}	1066	}
1351	# endif /* ENABLE_TRANSPARENCY */	1067	# endif /* ENABLE_TRANSPARENCY */
1352		1068
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	1069	bool
1358	rxvt_term::bg_render ()	1070	rxvt_term::bg_render ()
1359	{	1071	{
1360	unsigned long tr_flags = 0;
1361
1362	bg_invalidate ();	1072	bg_invalidate ();
1363	# ifdef ENABLE_TRANSPARENCY	1073	# ifdef ENABLE_TRANSPARENCY
1364	if (bg_flags & BG_IS_TRANSPARENT)	1074	if (bg_flags & BG_IS_TRANSPARENT)
1365	{	1075	{
1366	/* we need to re-generate transparency pixmap in that case ! */	1076	/* we need to re-generate transparency pixmap in that case ! */
1367	tr_flags = make_transparency_pixmap ();	1077	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;	1078	bg_flags |= BG_IS_VALID;
1372	}	1079	}
1373	# endif	1080	# endif
1374		1081
1375	# ifdef BG_IMAGE_FROM_FILE	1082	# ifdef BG_IMAGE_FROM_FILE
1376	if ((bg_flags & BG_IS_FROM_FILE)	1083	if (bg_image.flags & IM_IS_SET)
1377	|| (tr_flags & BG_EFFECTS_FLAGS))
1378	{	1084	{
1379	if (render_image (tr_flags))	1085	if (render_image (bg_image))
1380	bg_flags |= BG_IS_VALID;	1086	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	}	1087	}
1415	# endif	1088	# endif
1416		1089
1417	if (!(bg_flags & BG_IS_VALID))	1090	if (!(bg_flags & BG_IS_VALID))
1418	{	1091	{
…		…
1455	#endif	1128	#endif
1456	}	1129	}
1457		1130
1458	#endif /* HAVE_BG_PIXMAP */	1131	#endif /* HAVE_BG_PIXMAP */
1459		1132
1460	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	1133	#ifdef ENABLE_TRANSPARENCY
1461	/* taken from aterm-0.4.2 */	1134	/* based on code from aterm-0.4.2 */
1462		1135
1463	static void	1136	static inline void
1464	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)	1137	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1465	{	1138	{
		1139	for (int i = 0; i <= mask >> sh; i++)
		1140	{
		1141	uint32_t tmp;
		1142	tmp = i * high;
		1143	tmp += (mask >> sh) * low;
		1144	lookup[i] = (tmp / 0xffff) << sh;
		1145	}
		1146	}
		1147
		1148	void
		1149	rxvt_term::tint_ximage (XImage *ximage)
		1150	{
		1151	unsigned int size_r, size_g, size_b;
1466	int sh_r, sh_g, sh_b;	1152	int sh_r, sh_g, sh_b;
1467	uint32_t mask_r, mask_g, mask_b;	1153	uint32_t mask_r, mask_g, mask_b;
1468	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;	1154	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1469	rgba low;	1155	unsigned short low;
1470	rgba high;
1471	int i;
1472	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;	1156	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1473		1157
1474	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;	1158	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1475		1159
1476	/* for convenience */	1160	/* for convenience */
1477	mask_r = visual->red_mask;	1161	mask_r = visual->red_mask;
1478	mask_g = visual->green_mask;	1162	mask_g = visual->green_mask;
1479	mask_b = visual->blue_mask;	1163	mask_b = visual->blue_mask;
1480		1164
1481	/* boring lookup table pre-initialization */	1165	/* boring lookup table pre-initialization */
1482	switch (ximage->depth)	1166	sh_r = ecb_ctz32 (mask_r);
1483	{	1167	sh_g = ecb_ctz32 (mask_g);
1484	case 15:	1168	sh_b = ecb_ctz32 (mask_b);
1485	if ((mask_r != 0x7c00) ||	1169
1486	(mask_g != 0x03e0) ||	1170	size_r = mask_r >> sh_r;
1487	(mask_b != 0x001f))	1171	size_g = mask_g >> sh_g;
		1172	size_b = mask_b >> sh_b;
		1173
		1174	if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1488	return;	1175	return;
1489	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));	1176
		1177	lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1490	lookup_r = lookup;	1178	lookup_r = lookup;
1491	lookup_g = lookup+32;	1179	lookup_g = lookup + size_r;
1492	lookup_b = lookup+32+32;	1180	lookup_b = lookup + size_r + size_g;
1493	sh_r = 10;	1181
1494	sh_g = 5;	1182	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1495	sh_b = 0;	1183
1496	break;	1184	if (bg_flags & BG_TINT_SET)
1497	case 16:	1185	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		1186
1540	/* prepare limits for color transformation (each channel is handled separately) */	1187	/* prepare limits for color transformation (each channel is handled separately) */
1541	if (shade > 100)	1188	if (shade > 100)
1542	{	1189	{
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;	1190	c.r = c.r * (200 - shade) / 100;
1550	low.g = 65535 * (100 - shade) / 100;	1191	c.g = c.g * (200 - shade) / 100;
1551	low.b = 65535 * (100 - shade) / 100;	1192	c.b = c.b * (200 - shade) / 100;
		1193
		1194	low = 0xffff * (shade - 100) / 100;
1552	}	1195	}
1553	else	1196	else
1554	{	1197	{
1555	high.r = c.r * shade / 100;	1198	c.r = c.r * shade / 100;
1556	high.g = c.g * shade / 100;	1199	c.g = c.g * shade / 100;
1557	high.b = c.b * shade / 100;	1200	c.b = c.b * shade / 100;
1558		1201
1559	low.r = low.g = low.b = 0;	1202	low = 0;
1560	}	1203	}
1561		1204
1562	/* fill our lookup tables */	1205	/* fill our lookup tables */
1563	for (i = 0; i <= mask_r>>sh_r; i++)	1206	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1564	{	1207	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1565	uint32_t tmp;	1208	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		1209
1585	/* apply table to input image (replacing colors by newly calculated ones) */	1210	/* apply table to input image (replacing colors by newly calculated ones) */
1586	if (ximage->bits_per_pixel == 32	1211	if (ximage->bits_per_pixel == 32
1587	&& (ximage->depth == 24 || ximage->depth == 32)
1588	&& ximage->byte_order == host_byte_order)	1212	&& ximage->byte_order == host_byte_order)
1589	{	1213	{
1590	uint32_t *p1, *pf, *p, *pl;	1214	char *line = ximage->data;
1591	p1 = (uint32_t *) ximage->data;
1592	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1593		1215
1594	while (p1 < pf)	1216	for (int y = 0; y < ximage->height; y++)
1595	{
1596	p = p1;
1597	pl = p1 + ximage->width;
1598	for (; p < pl; p++)
1599	{	1217	{
1600	*p = lookup_r[(*p & 0xff0000) >> 16] |	1218	uint32_t *p = (uint32_t *)line;
1601	lookup_g[(*p & 0x00ff00) >> 8] |	1219	for (int x = 0; x < ximage->width; x++)
1602	lookup_b[(*p & 0x0000ff)] |
1603	(*p & 0xff000000);
1604	}	1220	{
1605	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);	1221	*p = lookup_r[(*p & mask_r) >> sh_r] |
		1222	lookup_g[(*p & mask_g) >> sh_g] |
		1223	lookup_b[(*p & mask_b) >> sh_b];
		1224	p++;
		1225	}
		1226	line += ximage->bytes_per_line;
1606	}	1227	}
1607	}	1228	}
1608	else	1229	else
1609	{	1230	{
1610	for (int y = 0; y < ximage->height; y++)	1231	for (int y = 0; y < ximage->height; y++)
…		…
1618	}	1239	}
1619	}	1240	}
1620		1241
1621	free (lookup);	1242	free (lookup);
1622	}	1243	}
1623	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1244	#endif /* ENABLE_TRANSPARENCY */

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