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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.162 by sf-exg, Thu Aug 11 12:27:26 2011 UTC vs.
Revision 1.215 by sf-exg, Thu May 17 10:31:26 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	new_flags |= BG_TILE;
306	w = windowScale;
307	h = noScale;
308	geom_flags |= WidthValue|HeightValue;
309	}
310	else if (!strcasecmp (arr[i], "vscale"))
311	{
312	new_flags |= BG_TILE;
313	h = windowScale;
314	w = noScale;
315	geom_flags |= WidthValue|HeightValue;
316	}
317	else if (!strcasecmp (arr[i], "scale"))
318	{
319	w = h = windowScale;
320	geom_flags |= WidthValue|HeightValue;
321	}
322	else if (!strcasecmp (arr[i], "auto"))
323	{
324	w = h = windowScale;
325	x = y = centerAlign;
326	geom_flags |= WidthValue|HeightValue|XValue|YValue;
327	}
328	else if (!strcasecmp (arr[i], "root"))
329	{
330	new_flags |= BG_TILE|BG_ROOT_ALIGN;
331	w = h = noScale;
332	geom_flags |= WidthValue|HeightValue;
333	}
334	} /* done parsing ops */
335
336	rxvt_free_strsplit (arr);
337	}	289	{
338
339	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
340	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
341	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
342	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
343
344	if (new_flags != bg_flags)
345	{
346	bg_flags = new_flags;	290	flags = new_flags;
		291	h_scale = w;
		292	v_scale = h;
		293	h_align = x;
		294	v_align = y;
347	changed = true;	295	changed = true;
348	}	296	}
349		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
350	return changed;	305	return changed;
351	}	306	}
352		307
353	void	308	void
354	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)
355	{	310	{
		311	int image_width = image.width ();
		312	int image_height = image.height ();
356	int target_width = szHint.width;	313	int target_width = szHint.width;
357	int target_height = szHint.height;	314	int target_height = szHint.height;
358		315
359	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)
360	{	320	{
361	float scale = (float)target_width / image_width;	321	float scale = (float)w / image_width;
362	min_it (scale, (float)target_height / image_height);	322	min_it (scale, (float)h / image_height);
363	w = image_width * scale + 0.5;	323	w = image_width * scale + 0.5;
364	h = image_height * scale + 0.5;	324	h = image_height * scale + 0.5;
365	}	325	}
366	else
367	{
368	w = h_scale * target_width / 100;
369	h = v_scale * target_height / 100;
370	}
371		326
372	if (!w) w = image_width;	327	if (!w) w = image_width;
373	if (!h) h = image_height;	328	if (!h) h = image_height;
374		329
375	if (bg_flags & BG_ROOT_ALIGN)	330	if (image.flags & IM_ROOT_ALIGN)
376	{	331	{
377	x = -target_x;	332	x = -target_x;
378	y = -target_y;	333	y = -target_y;
379	}	334	}
380	else	335	else
381	{	336	{
382	x = make_align_position (h_align, target_width, w);	337	x = make_align_position (image.h_align, target_width, w);
383	y = make_align_position (v_align, target_height, h);	338	y = make_align_position (image.v_align, target_height, h);
384	}
385
386	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
387	if (!(bg_flags & BG_TILE)
388	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
389	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
390	|| w > target_width || h > target_height)
391	bg_flags |= BG_IS_SIZE_SENSITIVE;
392	}
393
394	# ifdef HAVE_AFTERIMAGE
395	bool
396	rxvt_term::render_image (unsigned long tr_flags)
397	{
398	init_asv ();
399
400	ASImage *background = NULL;
401	ARGB32 background_tint = TINT_LEAVE_SAME;
402
403	# ifdef ENABLE_TRANSPARENCY
404	if (tr_flags)
405	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
406
407	if (tr_flags & BG_NEEDS_TINT)
408	{	339	}
409	ShadingInfo as_shade;	340	}
410	as_shade.shading = shade;
411		341
412	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	342	# ifdef HAVE_PIXBUF
413	if (bg_flags & BG_TINT_SET)	343	bool
414	tint.get (c);	344	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
415	as_shade.tintColor.red = c.r;	345	int src_x, int src_y, int dst_x, int dst_y,
416	as_shade.tintColor.green = c.g;	346	unsigned int width, unsigned int height)
417	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;
418		356
419	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)))
420	}	391	{
421		392	XDestroyImage (ximage);
422	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)	393	return false;
423	{	394	}
424	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,	395
425	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,	396	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
426	100, ASIMAGE_QUALITY_DEFAULT);	397
427	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)
428	{	422	{
429	destroy_asimage (&background);	423	a = pixel[3];
430	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);
431	}	445	}
432	}
433	# endif
434		446
435	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);
436		473
437	int target_width = szHint.width;	474	int target_width = szHint.width;
438	int target_height = szHint.height;	475	int target_height = szHint.height;
439	int new_pmap_width = target_width;	476	int new_pmap_width = target_width;
440	int new_pmap_height = target_height;	477	int new_pmap_height = target_height;
…		…
442	int x = 0;	479	int x = 0;
443	int y = 0;	480	int y = 0;
444	int w = 0;	481	int w = 0;
445	int h = 0;	482	int h = 0;
446		483
447	if (original_asim)	484	get_image_geometry (image, w, h, x, y);
448	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
449		485
450	if (!original_asim
451	|| (!(bg_flags & BG_ROOT_ALIGN)
452	&& (x >= target_width
453	|| y >= target_height
454	|| (x + w <= 0)
455	|| (y + h <= 0))))
456	{
457	if (background)
458	{
459	new_pmap_width = background->width;
460	new_pmap_height = background->height;
461	result = background;
462
463	if (background_tint != TINT_LEAVE_SAME)
464	{
465	ASImage *tmp = tile_asimage (asv, background, 0, 0,
466	target_width, target_height, background_tint,
467	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
468	if (tmp)
469	result = tmp;
470	}
471	}
472	else
473	new_pmap_width = new_pmap_height = 0;
474	}
475	else
476	{
477	result = original_asim;
478
479	if ((w != original_asim->width)
480	|| (h != original_asim->height))
481	{
482	result = scale_asimage (asv, original_asim,
483	w, h,
484	background ? ASA_ASImage : ASA_XImage,
485	100, ASIMAGE_QUALITY_DEFAULT);
486	}
487
488	if (background == NULL)
489	{
490	if (bg_flags & BG_TILE)
491	{
492	/* if tiling - pixmap has to be sized exactly as the image,
493	but there is no need to make it bigger than the window! */
494	new_pmap_width = min (result->width, target_width);
495	new_pmap_height = min (result->height, target_height);
496
497	/* we also need to tile our image in both directions */
498	ASImage *tmp = tile_asimage (asv, result,
499	(int)result->width - x,
500	(int)result->height - y,
501	new_pmap_width,
502	new_pmap_height,
503	TINT_LEAVE_SAME, ASA_XImage,
504	100, ASIMAGE_QUALITY_DEFAULT);
505	if (tmp)
506	{
507	if (result != original_asim)
508	destroy_asimage (&result);
509
510	result = tmp;
511	}
512	}
513	}
514	else
515	{
516	/* if blending background and image - pixmap has to be sized same as target window */
517	ASImageLayer *layers = create_image_layers (2);
518
519	layers[0].im = background;
520	layers[0].clip_width = target_width;
521	layers[0].clip_height = target_height;
522	layers[0].tint = background_tint;
523	layers[1].im = result;
524
525	if (bg_flags & BG_TILE)
526	{
527	/* tile horizontally */
528	while (x > 0) x -= (int)result->width;
529	layers[1].dst_x = x;
530	layers[1].clip_width = result->width+target_width;
531	}
532	else
533	{
534	/* clip horizontally */
535	layers[1].dst_x = x;
536	layers[1].clip_width = result->width;
537	}
538
539	if (bg_flags & BG_TILE)
540	{
541	while (y > 0) y -= (int)result->height;
542	layers[1].dst_y = y;
543	layers[1].clip_height = result->height + target_height;
544	}
545	else
546	{
547	layers[1].dst_y = y;
548	layers[1].clip_height = result->height;
549	}
550
551	if (rs[Rs_blendtype])
552	{
553	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
554	if (layers[1].merge_scanlines == NULL)
555	layers[1].merge_scanlines = alphablend_scanlines;
556	}
557
558	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
559	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
560
561	if (tmp)
562	{
563	if (result != original_asim)
564	destroy_asimage (&result);
565
566	result = tmp;
567	}
568
569	free (layers);
570	}
571	}
572
573	bool ret = false;
574
575	if (result)
576	{
577	XGCValues gcv;
578	GC gc;
579
580	/* create Pixmap */
581	if (bg_pixmap == None
582	|| bg_pmap_width != new_pmap_width
583	|| bg_pmap_height != new_pmap_height)
584	{
585	if (bg_pixmap)
586	XFreePixmap (dpy, bg_pixmap);
587	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
588	bg_pmap_width = new_pmap_width;
589	bg_pmap_height = new_pmap_height;
590	}
591	/* fill with background color (if result's not completely overlapping it) */
592	gcv.foreground = pix_colors[Color_bg];
593	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
594
595	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
596	int dst_width = result->width, dst_height = result->height;
597	if (background == NULL)
598	{
599	if (!(bg_flags & BG_TILE))
600	{
601	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
602	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
603	}
604
605	if (dst_x > 0 || dst_y > 0
606	|| dst_x + dst_width < new_pmap_width
607	|| dst_y + dst_height < new_pmap_height)
608	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
609	}
610
611	/* put result on pixmap */
612	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
613	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
614
615	if (result != background && result != original_asim)
616	destroy_asimage (&result);
617
618	XFreeGC (dpy, gc);
619
620	ret = true;
621	}
622
623	if (background)
624	destroy_asimage (&background);
625
626	return ret;
627	}
628	# endif /* HAVE_AFTERIMAGE */
629
630	# ifdef HAVE_PIXBUF
631	bool
632	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
633	int src_x, int src_y, int dst_x, int dst_y,
634	unsigned int width, unsigned int height)
635	{
636	XImage *ximage;
637	char *data, *line;
638	int bytes_per_pixel;
639	int width_r, width_g, width_b;
640	int sh_r, sh_g, sh_b;
641	int rowstride;
642	int channels;
643	unsigned char *row;
644
645	if (visual->c_class != TrueColor)
646	return false;
647
648	if (depth == 24 || depth == 32)
649	bytes_per_pixel = 4;
650	else if (depth == 15 || depth == 16)
651	bytes_per_pixel = 2;
652	else
653	return false;
654
655	width_r = ecb_popcount32 (visual->red_mask);
656	width_g = ecb_popcount32 (visual->green_mask);
657	width_b = ecb_popcount32 (visual->blue_mask);
658
659	if (width_r > 8 || width_g > 8 || width_b > 8)
660	return false;
661
662	sh_r = ecb_ctz32 (visual->red_mask);
663	sh_g = ecb_ctz32 (visual->green_mask);
664	sh_b = ecb_ctz32 (visual->blue_mask);
665
666	if (width > INT_MAX / height / bytes_per_pixel)
667	return false;
668
669	data = (char *)malloc (width * height * bytes_per_pixel);
670	if (!data)
671	return false;
672
673	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
674	width, height, bytes_per_pixel * 8, 0);
675	if (!ximage)
676	{
677	free (data);
678	return false;
679	}
680
681	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
682
683	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
684	channels = gdk_pixbuf_get_n_channels (pixbuf);
685	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
686	line = data;
687
688	for (int y = 0; y < height; y++)
689	{
690	for (int x = 0; x < width; x++)
691	{
692	unsigned char *pixel = row + x * channels;
693	uint32_t value;
694
695	value = ((pixel[0] >> (8 - width_r)) << sh_r)
696	| ((pixel[1] >> (8 - width_g)) << sh_g)
697	| ((pixel[2] >> (8 - width_b)) << sh_b);
698
699	if (bytes_per_pixel == 4)
700	((uint32_t *)line)[x] = value;
701	else
702	((uint16_t *)line)[x] = value;
703	}
704
705	row += rowstride;
706	line += ximage->bytes_per_line;
707	}
708
709	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
710	XDestroyImage (ximage);
711	return true;
712	}
713
714	bool
715	rxvt_term::render_image (unsigned long tr_flags)
716	{
717	if (!pixbuf)
718	return false;
719
720	if (tr_flags
721	&& !(bg_flags & BG_HAS_RENDER))
722	return false;
723
724	GdkPixbuf *result;
725
726	int image_width = gdk_pixbuf_get_width (pixbuf);
727	int image_height = gdk_pixbuf_get_height (pixbuf);
728
729	int target_width = szHint.width;
730	int target_height = szHint.height;
731	int new_pmap_width = target_width;
732	int new_pmap_height = target_height;
733
734	int x = 0;
735	int y = 0;
736	int w = 0;
737	int h = 0;
738
739	get_image_geometry (image_width, image_height, w, h, x, y);
740
741	if (!(bg_flags & BG_ROOT_ALIGN)	486	if (!(image.flags & IM_ROOT_ALIGN)
742	&& (x >= target_width	487	&& (x >= target_width
743	|| y >= target_height	488	|| y >= target_height
744	|| (x + w <= 0)	489	|| x + w <= 0
745	|| (y + h <= 0)))	490	|| y + h <= 0))
746	return false;	491	return false;
747		492
748	result = pixbuf;	493	result = pixbuf;
749		494
750	if ((w != image_width)	495	if (w != image_width
751	|| (h != image_height))	496	|| h != image_height)
752	{	497	{
753	result = gdk_pixbuf_scale_simple (pixbuf,	498	result = gdk_pixbuf_scale_simple (pixbuf,
754	w, h,	499	w, h,
755	GDK_INTERP_BILINEAR);	500	GDK_INTERP_BILINEAR);
756	}	501	}
…		…
760		505
761	bool ret = false;	506	bool ret = false;
762		507
763	XGCValues gcv;	508	XGCValues gcv;
764	GC gc;	509	GC gc;
765	Pixmap root_pmap;	510	Pixmap tmp_pixmap;
766		511
767	image_width = gdk_pixbuf_get_width (result);	512	image_width = gdk_pixbuf_get_width (result);
768	image_height = gdk_pixbuf_get_height (result);	513	image_height = gdk_pixbuf_get_height (result);
769		514
770	if (tr_flags)	515	if (need_blend)
771	{	516	{
772	root_pmap = bg_pixmap;	517	tmp_pixmap = bg_pixmap;
773	bg_pixmap = None;	518	bg_pixmap = None;
774	}	519	}
775	else	520	else
776	{	521	{
777	if (bg_flags & BG_TILE)	522	if (image.flags & IM_TILE)
778	{	523	{
779	new_pmap_width = min (image_width, target_width);	524	new_pmap_width = min (image_width, target_width);
780	new_pmap_height = min (image_height, target_height);	525	new_pmap_height = min (image_height, target_height);
781	}	526	}
782	}	527	}
…		…
795	gcv.foreground = pix_colors[Color_bg];	540	gcv.foreground = pix_colors[Color_bg];
796	gc = XCreateGC (dpy, vt, GCForeground, &gcv);	541	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
797		542
798	if (gc)	543	if (gc)
799	{	544	{
800	if (bg_flags & BG_TILE)	545	if (image.flags & IM_TILE)
801	{	546	{
802	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);	547	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
803	pixbuf_to_pixmap (result, tile, gc,	548	pixbuf_to_pixmap (result, tile, gc,
804	0, 0,	549	0, 0,
805	0, 0,	550	0, 0,
…		…
833	dst_x, dst_y,	578	dst_x, dst_y,
834	dst_width, dst_height);	579	dst_width, dst_height);
835	}	580	}
836		581
837	#if XRENDER	582	#if XRENDER
838	if (tr_flags)	583	if (need_blend)
839	{	584	{
840	XRenderPictureAttributes pa;
841
842	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	585	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		586
843	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	587	Picture src = XRenderCreatePicture (dpy, tmp_pixmap, format, 0, 0);
844		588
845	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
846	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	589	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
847		590
848	pa.repeat = True;	591	Picture mask = create_xrender_mask (dpy, vt, False, False);
849	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
850	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
851	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
852	XFreePixmap (dpy, mask_pmap);
853		592
854	XRenderColor mask_c;	593	XRenderColor mask_c;
855		594
856	mask_c.alpha = 0x8000;	595	mask_c.alpha = 0x8000;
857	mask_c.red = 0;	596	mask_c.red =
858	mask_c.green = 0;	597	mask_c.green =
859	mask_c.blue = 0;	598	mask_c.blue = 0;
860	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);	599	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		600
861	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);
862		602
863	XRenderFreePicture (dpy, src);	603	XRenderFreePicture (dpy, src);
864	XRenderFreePicture (dpy, dst);	604	XRenderFreePicture (dpy, dst);
865	XRenderFreePicture (dpy, mask);	605	XRenderFreePicture (dpy, mask);
…		…
872	}	612	}
873		613
874	if (result != pixbuf)	614	if (result != pixbuf)
875	g_object_unref (result);	615	g_object_unref (result);
876		616
877	if (tr_flags)	617	if (need_blend)
878	XFreePixmap (dpy, root_pmap);	618	XFreePixmap (dpy, tmp_pixmap);
879		619
880	return ret;	620	return ret;
881	}	621	}
882	# endif /* HAVE_PIXBUF */	622	# endif /* HAVE_PIXBUF */
883		623
884	bool	624	bool
885	rxvt_term::bg_set_file (const char *file)	625	rxvt_image::set_file (const char *file)
886	{	626	{
887	if (!file || !*file)	627	if (!file || !*file)
888	return false;	628	return false;
889		629
		630	bool ret = false;
890	if (const char *p = strchr (file, ';'))	631	const char *p = strchr (file, ';');
		632
		633	if (p)
891	{	634	{
892	size_t len = p - file;	635	size_t len = p - file;
893	char *f = rxvt_temp_buf<char> (len + 1);	636	char *f = rxvt_temp_buf<char> (len + 1);
894	memcpy (f, file, len);	637	memcpy (f, file, len);
895	f[len] = '\0';	638	f[len] = '\0';
896	file = f;	639	file = f;
897	}	640	}
898		641
899	# ifdef HAVE_AFTERIMAGE
900	if (!asimman)
901	asimman = create_generic_imageman (rs[Rs_path]);
902	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
903	if (image)
904	{
905	if (original_asim)
906	safe_asimage_destroy (original_asim);
907	original_asim = image;
908	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
909	return true;
910	}
911	# endif
912
913	# ifdef HAVE_PIXBUF	642	# ifdef HAVE_PIXBUF
914	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	643	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
915	if (image)	644	if (image)
916	{	645	{
917	if (pixbuf)	646	if (pixbuf)
918	g_object_unref (pixbuf);	647	g_object_unref (pixbuf);
919	pixbuf = image;	648	pixbuf = image;
920	bg_flags |= BG_IS_FROM_FILE;	649	flags |= IM_IS_SET;
921	return true;	650	ret = true;
922	}	651	}
923	# endif	652	# endif
924		653
		654	if (ret)
		655	{
		656	if (p)
		657	set_geometry (p + 1);
		658	else
		659	set_default_geometry ();
		660	}
		661
925	return false;	662	return ret;
926	}	663	}
927		664
928	# endif /* BG_IMAGE_FROM_FILE */	665	# endif /* BG_IMAGE_FROM_FILE */
929		666
930	# ifdef ENABLE_TRANSPARENCY	667	# ifdef ENABLE_TRANSPARENCY
931	bool
932	rxvt_term::bg_set_transparent ()
933	{
934	if (!(bg_flags & BG_IS_TRANSPARENT))
935	{
936	bg_flags |= BG_IS_TRANSPARENT;
937	return true;
938	}
939
940	return false;
941	}
942
943	bool	668	bool
944	rxvt_term::bg_set_blur (const char *geom)	669	rxvt_term::bg_set_blur (const char *geom)
945	{	670	{
946	bool changed = false;	671	bool changed = false;
947	unsigned int hr, vr;	672	unsigned int hr, vr;
…		…
966	{	691	{
967	changed = true;	692	changed = true;
968	v_blurRadius = vr;	693	v_blurRadius = vr;
969	}	694	}
970		695
971	if (v_blurRadius == 0 && h_blurRadius == 0)
972	bg_flags &= ~BG_NEEDS_BLUR;
973	else
974	bg_flags |= BG_NEEDS_BLUR;
975
976	return changed;	696	return changed;
977	}	697	}
978		698
979	void	699	bool
980	rxvt_term::set_tint_shade_flags ()	700	rxvt_term::bg_set_tint (rxvt_color &new_tint)
981	{	701	{
982	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	702	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
983	bool has_shade = shade != 100;	703	{
984		704	tint = new_tint;
985	bg_flags &= ~BG_TINT_FLAGS;	705	bg_flags |= BG_TINT_SET;
986		706
987	if (bg_flags & BG_TINT_SET)	707	rgba c;
988	{
989	tint.get (c);	708	tint.get (c);
990	if (!has_shade
991	&& (c.r <= 0x00ff || c.r >= 0xff00)	709	if ((c.r <= 0x00ff || c.r >= 0xff00)
992	&& (c.g <= 0x00ff || c.g >= 0xff00)	710	&& (c.g <= 0x00ff || c.g >= 0xff00)
993	&& (c.b <= 0x00ff || c.b >= 0xff00))	711	&& (c.b <= 0x00ff || c.b >= 0xff00))
994	bg_flags |= BG_TINT_BITAND;	712	bg_flags |= BG_TINT_BITAND;
995	}	713	else
996
997	if (has_shade || (bg_flags & BG_TINT_SET))
998	bg_flags |= BG_NEEDS_TINT;
999	}
1000
1001	bool
1002	rxvt_term::bg_set_tint (rxvt_color &new_tint)
1003	{
1004	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
1005	{
1006	tint = new_tint;
1007	bg_flags |= BG_TINT_SET;	714	bg_flags &= ~BG_TINT_BITAND;
1008	set_tint_shade_flags ();	715
1009	return true;	716	return true;
1010	}	717	}
1011		718
1012	return false;	719	return false;
1013	}	720	}
1014		721
1015	bool	722	bool
1016	rxvt_term::bg_set_shade (const char *shade_str)	723	rxvt_term::bg_set_shade (const char *shade_str)
1017	{	724	{
1018	int new_shade = (shade_str) ? atoi (shade_str) : 100;	725	int new_shade = atoi (shade_str);
1019		726
1020	clamp_it (new_shade, -100, 200);	727	clamp_it (new_shade, -100, 200);
1021	if (new_shade < 0)	728	if (new_shade < 0)
1022	new_shade = 200 - (100 + new_shade);	729	new_shade = 200 - (100 + new_shade);
1023		730
1024	if (new_shade != shade)	731	if (new_shade != shade)
1025	{	732	{
1026	shade = new_shade;	733	shade = new_shade;
1027	set_tint_shade_flags ();
1028	return true;	734	return true;
1029	}	735	}
1030		736
1031	return false;	737	return false;
1032	}	738	}
…		…
1053	params[i+2] = XDoubleToFixed (kernel[i] / sum);	759	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1054	}	760	}
1055	#endif	761	#endif
1056		762
1057	bool	763	bool
1058	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	764	rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
1059	{	765	{
1060	bool ret = false;	766	bool ret = false;
1061	#if XRENDER	767	#if XRENDER
		768	if (!(bg_flags & BG_HAS_RENDER_CONV))
		769	return false;
		770
1062	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;	771	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1063	double *kernel = (double *)malloc (size * sizeof (double));	772	double *kernel = (double *)malloc (size * sizeof (double));
1064	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));	773	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1065		774
1066	XRenderPictureAttributes pa;	775	XRenderPictureAttributes pa;
1067	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	776	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1068		777
		778	pa.repeat = RepeatPad;
1069	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	779	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		780	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
1070	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	781	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		782	XFreePixmap (dpy, tmp);
1071		783
1072	if (kernel && params)	784	if (kernel && params)
1073	{	785	{
1074	if (h_blurRadius)
1075	{
1076	size = h_blurRadius * 2 + 1;	786	size = h_blurRadius * 2 + 1;
1077	get_gaussian_kernel (h_blurRadius, size, kernel, params);	787	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1078		788
1079	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	789	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1080	XRenderComposite (dpy,	790	XRenderComposite (dpy,
1081	PictOpSrc,	791	PictOpSrc,
1082	src,	792	src,
1083	None,	793	None,
1084	dst,	794	dst,
1085	0, 0,	795	0, 0,
1086	0, 0,	796	0, 0,
1087	0, 0,	797	0, 0,
1088	width, height);	798	width, height);
1089	}
1090		799
1091	if (v_blurRadius)	800	::swap (src, dst);
1092	{	801
1093	size = v_blurRadius * 2 + 1;	802	size = v_blurRadius * 2 + 1;
1094	get_gaussian_kernel (v_blurRadius, size, kernel, params);	803	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1095	::swap (params[0], params[1]);	804	::swap (params[0], params[1]);
1096		805
1097	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	806	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1098	XRenderComposite (dpy,	807	XRenderComposite (dpy,
1099	PictOpSrc,	808	PictOpSrc,
1100	src,	809	src,
1101	None,	810	None,
1102	dst,	811	dst,
1103	0, 0,	812	0, 0,
1104	0, 0,	813	0, 0,
1105	0, 0,	814	0, 0,
1106	width, height);	815	width, height);
1107	}
1108		816
1109	ret = true;	817	ret = true;
1110	}	818	}
1111		819
1112	free (kernel);	820	free (kernel);
…		…
1116	#endif	824	#endif
1117	return ret;	825	return ret;
1118	}	826	}
1119		827
1120	bool	828	bool
1121	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	829	rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
1122	{	830	{
1123	bool ret = false;	831	bool ret = false;
1124		832
1125	if (bg_flags & BG_TINT_BITAND)	833	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
1126	{	834	{
1127	XGCValues gcv;	835	XGCValues gcv;
1128	GC gc;	836	GC gc;
1129		837
1130	/* In this case we can tint image server-side getting significant	838	/* In this case we can tint image server-side getting significant
…		…
1139	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);	847	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1140	ret = true;	848	ret = true;
1141	XFreeGC (dpy, gc);	849	XFreeGC (dpy, gc);
1142	}	850	}
1143	}	851	}
1144	else
1145	{
1146	# if XRENDER	852	# if XRENDER
		853	else if (bg_flags & BG_HAS_RENDER)
		854	{
1147	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	855	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1148		856
1149	if (bg_flags & BG_TINT_SET)	857	if (bg_flags & BG_TINT_SET)
1150	tint.get (c);	858	tint.get (c);
1151		859
…		…
1160	c.r = c.r * (200 - shade) / 100;	868	c.r = c.r * (200 - shade) / 100;
1161	c.g = c.g * (200 - shade) / 100;	869	c.g = c.g * (200 - shade) / 100;
1162	c.b = c.b * (200 - shade) / 100;	870	c.b = c.b * (200 - shade) / 100;
1163	}	871	}
1164		872
1165	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1166	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	873	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1167	XRenderPictureAttributes pa;
1168		874
1169	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	875	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1170		876
1171	pa.repeat = True;	877	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1172		878
1173	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);	879	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1174	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1175	XFreePixmap (dpy, overlay_pmap);
1176
1177	pa.component_alpha = True;
1178	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1179	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1180	XFreePixmap (dpy, mask_pmap);
1181		880
1182	XRenderColor mask_c;	881	XRenderColor mask_c;
1183		882
1184	mask_c.alpha = 0xffff;	883	mask_c.alpha = 0xffff;
1185	mask_c.red =	884	mask_c.red =
…		…
1190	mask_c.alpha = 0;	889	mask_c.alpha = 0;
1191	mask_c.red = 0xffff - c.r;	890	mask_c.red = 0xffff - c.r;
1192	mask_c.green = 0xffff - c.g;	891	mask_c.green = 0xffff - c.g;
1193	mask_c.blue = 0xffff - c.b;	892	mask_c.blue = 0xffff - c.b;
1194	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);	893	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		894
1195	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);	895	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1196		896
1197	if (shade > 100)	897	if (shade > 100)
1198	{	898	{
1199	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1200	mask_c.alpha = 0;	899	mask_c.alpha = 0;
		900	mask_c.red =
		901	mask_c.green =
		902	mask_c.blue = 0xffff * (shade - 100) / 100;
1201	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);	903	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1202		904
1203	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);	905	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1204	}	906	}
1205		907
1206	ret = true;	908	ret = true;
1207		909
1208	XRenderFreePicture (dpy, mask_pic);	910	XRenderFreePicture (dpy, mask_pic);
1209	XRenderFreePicture (dpy, overlay_pic);	911	XRenderFreePicture (dpy, overlay_pic);
1210	XRenderFreePicture (dpy, back_pic);	912	XRenderFreePicture (dpy, back_pic);
		913	}
1211	# endif	914	# endif
1212	}
1213		915
1214	return ret;	916	return ret;
1215	}	917	}
1216		918
1217	/*	919	/*
1218	* Builds a pixmap of the same size as the terminal window that contains	920	* Builds a pixmap of the same size as the terminal window that contains
1219	* the tiled portion of the root pixmap that is supposed to be covered by	921	* the tiled portion of the root pixmap that is supposed to be covered by
1220	* our window.	922	* our window.
1221	*/	923	*/
1222	unsigned long	924	bool
1223	rxvt_term::make_transparency_pixmap ()	925	rxvt_term::make_transparency_pixmap ()
1224	{	926	{
1225	unsigned long result = 0;	927	bool ret = false;
1226		928
1227	/* root dimensions may change from call to call - but Display structure should	929	/* root dimensions may change from call to call - but Display structure should
1228	* be always up-to-date, so let's use it :	930	* be always up-to-date, so let's use it :
1229	*/	931	*/
1230	int screen = display->screen;	932	int screen = display->screen;
…		…
1268	#if XRENDER	970	#if XRENDER
1269	if (bg_flags & BG_HAS_RENDER)	971	if (bg_flags & BG_HAS_RENDER)
1270	{	972	{
1271	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);	973	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1272		974
1273	XRenderPictureAttributes pa;
1274
1275	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));	975	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1276	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);	976	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1277		977
1278	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	978	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1279	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	979	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1280		980
1281	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	981	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
1282		982
1283	XRenderFreePicture (dpy, src);	983	XRenderFreePicture (dpy, src);
1284	XRenderFreePicture (dpy, dst);	984	XRenderFreePicture (dpy, dst);
…		…
1301	bg_pmap_width = window_width;	1001	bg_pmap_width = window_width;
1302	bg_pmap_height = window_height;	1002	bg_pmap_height = window_height;
1303	}	1003	}
1304		1004
1305	/* straightforward pixmap copy */	1005	/* straightforward pixmap copy */
1306	while (sx < 0) sx += root_width;	1006	while (sx < 0) sx += root_pmap_width;
1307	while (sy < 0) sy += root_height;	1007	while (sy < 0) sy += root_pmap_height;
1308		1008
1309	gcv.tile = recoded_root_pmap;	1009	gcv.tile = recoded_root_pmap;
1310	gcv.fill_style = FillTiled;	1010	gcv.fill_style = FillTiled;
1311	gcv.ts_x_origin = -sx;	1011	gcv.ts_x_origin = -sx;
1312	gcv.ts_y_origin = -sy;	1012	gcv.ts_y_origin = -sy;
1313	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	1013	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1314		1014
1315	if (gc)	1015	if (gc)
1316	{	1016	{
1317	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);	1017	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1318	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);	1018	ret = true;
		1019	bool need_blur = h_blurRadius && v_blurRadius;
		1020	bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
		1021
		1022	if (!(bg_flags & BG_CLIENT_RENDER))
		1023	{
		1024	if (need_blur)
		1025	{
		1026	if (blur_pixmap (bg_pixmap, window_width, window_height))
		1027	need_blur = false;
		1028	}
		1029	if (need_tint)
		1030	{
		1031	if (tint_pixmap (bg_pixmap, window_width, window_height))
		1032	need_tint = false;
		1033	}
		1034	if (need_tint)
		1035	{
		1036	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1037	if (ximage)
		1038	{
		1039	/* our own client-side tinting */
		1040	tint_ximage (ximage);
		1041
		1042	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1043	XDestroyImage (ximage);
		1044	}
		1045	}
		1046	} /* server side rendering completed */
		1047
1319	XFreeGC (dpy, gc);	1048	XFreeGC (dpy, gc);
1320
1321	if (!(bg_flags & BG_CLIENT_RENDER))
1322	{
1323	if ((bg_flags & BG_NEEDS_BLUR)
1324	&& (bg_flags & BG_HAS_RENDER_CONV))
1325	{
1326	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1327	result &= ~BG_NEEDS_BLUR;
1328	}
1329	if ((bg_flags & BG_NEEDS_TINT)
1330	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1331	{
1332	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1333	result &= ~BG_NEEDS_TINT;
1334	}
1335	} /* server side rendering completed */
1336	}	1049	}
1337		1050
1338	if (recoded_root_pmap != root_pixmap)	1051	if (recoded_root_pmap != root_pixmap)
1339	XFreePixmap (dpy, recoded_root_pmap);	1052	XFreePixmap (dpy, recoded_root_pmap);
1340		1053
1341	return result;	1054	return ret;
1342	}	1055	}
1343		1056
1344	void	1057	void
1345	rxvt_term::bg_set_root_pixmap ()	1058	rxvt_term::bg_set_root_pixmap ()
1346	{	1059	{
…		…
1350		1063
1351	root_pixmap = new_root_pixmap;	1064	root_pixmap = new_root_pixmap;
1352	}	1065	}
1353	# endif /* ENABLE_TRANSPARENCY */	1066	# endif /* ENABLE_TRANSPARENCY */
1354		1067
1355	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1356	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1357	# endif
1358
1359	bool	1068	bool
1360	rxvt_term::bg_render ()	1069	rxvt_term::bg_render ()
1361	{	1070	{
1362	unsigned long tr_flags = 0;
1363
1364	bg_invalidate ();	1071	bg_invalidate ();
1365	# ifdef ENABLE_TRANSPARENCY	1072	# ifdef ENABLE_TRANSPARENCY
1366	if (bg_flags & BG_IS_TRANSPARENT)	1073	if (bg_flags & BG_IS_TRANSPARENT)
1367	{	1074	{
1368	/* we need to re-generate transparency pixmap in that case ! */	1075	/* we need to re-generate transparency pixmap in that case ! */
1369	tr_flags = make_transparency_pixmap ();	1076	if (make_transparency_pixmap ())
1370	if (tr_flags == 0)
1371	return false;
1372	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1373	bg_flags |= BG_IS_VALID;	1077	bg_flags |= BG_IS_VALID;
1374	}	1078	}
1375	# endif	1079	# endif
1376		1080
1377	# ifdef BG_IMAGE_FROM_FILE	1081	# ifdef BG_IMAGE_FROM_FILE
1378	if ((bg_flags & BG_IS_FROM_FILE)	1082	if (bg_image.flags & IM_IS_SET)
1379	|| (tr_flags & BG_EFFECTS_FLAGS))
1380	{	1083	{
1381	if (render_image (tr_flags))	1084	if (render_image (bg_image))
1382	bg_flags |= BG_IS_VALID;	1085	bg_flags |= BG_IS_VALID;
1383	}
1384	# endif
1385
1386	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1387	XImage *result = NULL;
1388
1389	if (tr_flags && !(bg_flags & BG_IS_VALID))
1390	{
1391	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1392	}
1393
1394	if (result)
1395	{
1396	/* our own client-side tinting */
1397	if (tr_flags & BG_NEEDS_TINT)
1398	{
1399	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1400	if (bg_flags & BG_TINT_SET)
1401	tint.get (c);
1402	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1403	}
1404
1405	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1406
1407	if (gc)
1408	{
1409	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1410
1411	XFreeGC (dpy, gc);
1412	bg_flags |= BG_IS_VALID;
1413	}
1414
1415	XDestroyImage (result);
1416	}	1086	}
1417	# endif	1087	# endif
1418		1088
1419	if (!(bg_flags & BG_IS_VALID))	1089	if (!(bg_flags & BG_IS_VALID))
1420	{	1090	{
…		…
1457	#endif	1127	#endif
1458	}	1128	}
1459		1129
1460	#endif /* HAVE_BG_PIXMAP */	1130	#endif /* HAVE_BG_PIXMAP */
1461		1131
1462	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	1132	#ifdef ENABLE_TRANSPARENCY
1463	/* taken from aterm-0.4.2 */	1133	/* based on code from aterm-0.4.2 */
1464		1134
1465	static void	1135	static inline void
1466	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)	1136	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1467	{	1137	{
		1138	for (int i = 0; i <= mask >> sh; i++)
		1139	{
		1140	uint32_t tmp;
		1141	tmp = i * high;
		1142	tmp += (mask >> sh) * low;
		1143	lookup[i] = (tmp / 0xffff) << sh;
		1144	}
		1145	}
		1146
		1147	void
		1148	rxvt_term::tint_ximage (XImage *ximage)
		1149	{
		1150	unsigned int size_r, size_g, size_b;
1468	int sh_r, sh_g, sh_b;	1151	int sh_r, sh_g, sh_b;
1469	uint32_t mask_r, mask_g, mask_b;	1152	uint32_t mask_r, mask_g, mask_b;
1470	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;	1153	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1471	rgba low;	1154	unsigned short low;
1472	rgba high;
1473	int i;
1474	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;	1155	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1475		1156
1476	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;	1157	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1477		1158
1478	/* for convenience */	1159	/* for convenience */
1479	mask_r = visual->red_mask;	1160	mask_r = visual->red_mask;
1480	mask_g = visual->green_mask;	1161	mask_g = visual->green_mask;
1481	mask_b = visual->blue_mask;	1162	mask_b = visual->blue_mask;
1482		1163
1483	/* boring lookup table pre-initialization */	1164	/* boring lookup table pre-initialization */
1484	switch (ximage->depth)	1165	sh_r = ecb_ctz32 (mask_r);
1485	{	1166	sh_g = ecb_ctz32 (mask_g);
1486	case 15:	1167	sh_b = ecb_ctz32 (mask_b);
1487	if ((mask_r != 0x7c00) ||	1168
1488	(mask_g != 0x03e0) ||	1169	size_r = mask_r >> sh_r;
1489	(mask_b != 0x001f))	1170	size_g = mask_g >> sh_g;
		1171	size_b = mask_b >> sh_b;
		1172
		1173	if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1490	return;	1174	return;
1491	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));	1175
		1176	lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1492	lookup_r = lookup;	1177	lookup_r = lookup;
1493	lookup_g = lookup+32;	1178	lookup_g = lookup + size_r;
1494	lookup_b = lookup+32+32;	1179	lookup_b = lookup + size_r + size_g;
1495	sh_r = 10;	1180
1496	sh_g = 5;	1181	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1497	sh_b = 0;	1182
1498	break;	1183	if (bg_flags & BG_TINT_SET)
1499	case 16:	1184	tint.get (c);
1500	if ((mask_r != 0xf800) ||
1501	(mask_g != 0x07e0) ||
1502	(mask_b != 0x001f))
1503	return;
1504	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1505	lookup_r = lookup;
1506	lookup_g = lookup+32;
1507	lookup_b = lookup+32+64;
1508	sh_r = 11;
1509	sh_g = 5;
1510	sh_b = 0;
1511	break;
1512	case 24:
1513	if ((mask_r != 0xff0000) ||
1514	(mask_g != 0x00ff00) ||
1515	(mask_b != 0x0000ff))
1516	return;
1517	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1518	lookup_r = lookup;
1519	lookup_g = lookup+256;
1520	lookup_b = lookup+256+256;
1521	sh_r = 16;
1522	sh_g = 8;
1523	sh_b = 0;
1524	break;
1525	case 32:
1526	if ((mask_r != 0xff0000) ||
1527	(mask_g != 0x00ff00) ||
1528	(mask_b != 0x0000ff))
1529	return;
1530	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1531	lookup_r = lookup;
1532	lookup_g = lookup+256;
1533	lookup_b = lookup+256+256;
1534	sh_r = 16;
1535	sh_g = 8;
1536	sh_b = 0;
1537	break;
1538	default:
1539	return; /* we do not support this color depth */
1540	}
1541		1185
1542	/* prepare limits for color transformation (each channel is handled separately) */	1186	/* prepare limits for color transformation (each channel is handled separately) */
1543	if (shade > 100)	1187	if (shade > 100)
1544	{	1188	{
1545	shade = 200 - shade;
1546
1547	high.r = c.r * shade / 100;
1548	high.g = c.g * shade / 100;
1549	high.b = c.b * shade / 100;
1550
1551	low.r = 65535 * (100 - shade) / 100;	1189	c.r = c.r * (200 - shade) / 100;
1552	low.g = 65535 * (100 - shade) / 100;	1190	c.g = c.g * (200 - shade) / 100;
1553	low.b = 65535 * (100 - shade) / 100;	1191	c.b = c.b * (200 - shade) / 100;
		1192
		1193	low = 0xffff * (shade - 100) / 100;
1554	}	1194	}
1555	else	1195	else
1556	{	1196	{
1557	high.r = c.r * shade / 100;	1197	c.r = c.r * shade / 100;
1558	high.g = c.g * shade / 100;	1198	c.g = c.g * shade / 100;
1559	high.b = c.b * shade / 100;	1199	c.b = c.b * shade / 100;
1560		1200
1561	low.r = low.g = low.b = 0;	1201	low = 0;
1562	}	1202	}
1563		1203
1564	/* fill our lookup tables */	1204	/* fill our lookup tables */
1565	for (i = 0; i <= mask_r>>sh_r; i++)	1205	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1566	{	1206	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1567	uint32_t tmp;	1207	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1568	tmp = i * high.r;
1569	tmp += (mask_r>>sh_r) * low.r;
1570	lookup_r[i] = (tmp/65535)<<sh_r;
1571	}
1572	for (i = 0; i <= mask_g>>sh_g; i++)
1573	{
1574	uint32_t tmp;
1575	tmp = i * high.g;
1576	tmp += (mask_g>>sh_g) * low.g;
1577	lookup_g[i] = (tmp/65535)<<sh_g;
1578	}
1579	for (i = 0; i <= mask_b>>sh_b; i++)
1580	{
1581	uint32_t tmp;
1582	tmp = i * high.b;
1583	tmp += (mask_b>>sh_b) * low.b;
1584	lookup_b[i] = (tmp/65535)<<sh_b;
1585	}
1586		1208
1587	/* apply table to input image (replacing colors by newly calculated ones) */	1209	/* apply table to input image (replacing colors by newly calculated ones) */
1588	if (ximage->bits_per_pixel == 32	1210	if (ximage->bits_per_pixel == 32
1589	&& (ximage->depth == 24 || ximage->depth == 32)
1590	&& ximage->byte_order == host_byte_order)	1211	&& ximage->byte_order == host_byte_order)
1591	{	1212	{
1592	uint32_t *p1, *pf, *p, *pl;	1213	char *line = ximage->data;
1593	p1 = (uint32_t *) ximage->data;
1594	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1595		1214
1596	while (p1 < pf)	1215	for (int y = 0; y < ximage->height; y++)
1597	{
1598	p = p1;
1599	pl = p1 + ximage->width;
1600	for (; p < pl; p++)
1601	{	1216	{
1602	*p = lookup_r[(*p & 0xff0000) >> 16] |	1217	uint32_t *p = (uint32_t *)line;
1603	lookup_g[(*p & 0x00ff00) >> 8] |	1218	for (int x = 0; x < ximage->width; x++)
1604	lookup_b[(*p & 0x0000ff)] |
1605	(*p & 0xff000000);
1606	}	1219	{
1607	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);	1220	*p = lookup_r[(*p & mask_r) >> sh_r] |
		1221	lookup_g[(*p & mask_g) >> sh_g] |
		1222	lookup_b[(*p & mask_b) >> sh_b];
		1223	p++;
		1224	}
		1225	line += ximage->bytes_per_line;
1608	}	1226	}
1609	}	1227	}
1610	else	1228	else
1611	{	1229	{
1612	for (int y = 0; y < ximage->height; y++)	1230	for (int y = 0; y < ximage->height; y++)
…		…
1620	}	1238	}
1621	}	1239	}
1622		1240
1623	free (lookup);	1241	free (lookup);
1624	}	1242	}
1625	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1243	#endif /* ENABLE_TRANSPARENCY */

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