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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.160 by sf-exg, Thu Aug 11 08:37:17 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], "scale"))
304	{
305	if (h == 0) h = windowScale;
306	if (w == 0) w = windowScale;
307
308	geom_flags |= WidthValue|HeightValue;
309	}
310	else if (!strcasecmp (arr[i], "root"))
311	{
312	new_flags |= BG_TILE|BG_ROOT_ALIGN;
313	w = h = noScale;
314	geom_flags |= WidthValue|HeightValue;
315	}
316	} /* done parsing ops */
317
318	rxvt_free_strsplit (arr);
319	}	289	{
320
321	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
322	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
323	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
324	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
325
326	if (new_flags != bg_flags)
327	{
328	bg_flags = new_flags;	290	flags = new_flags;
		291	h_scale = w;
		292	v_scale = h;
		293	h_align = x;
		294	v_align = y;
329	changed = true;	295	changed = true;
330	}	296	}
331		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
332	return changed;	305	return changed;
333	}	306	}
334		307
335	void	308	void
336	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)
337	{	310	{
		311	int image_width = image.width ();
		312	int image_height = image.height ();
338	int target_width = szHint.width;	313	int target_width = szHint.width;
339	int target_height = szHint.height;	314	int target_height = szHint.height;
340		315
341	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)
342	{	320	{
343	float scale = (float)target_width / image_width;	321	float scale = (float)w / image_width;
344	min_it (scale, (float)target_height / image_height);	322	min_it (scale, (float)h / image_height);
345	w = image_width * scale + 0.5;	323	w = image_width * scale + 0.5;
346	h = image_height * scale + 0.5;	324	h = image_height * scale + 0.5;
347	}	325	}
348	else
349	{
350	w = h_scale * target_width / 100;
351	h = v_scale * target_height / 100;
352	}
353		326
354	if (!w) w = image_width;	327	if (!w) w = image_width;
355	if (!h) h = image_height;	328	if (!h) h = image_height;
356		329
357	if (bg_flags & BG_ROOT_ALIGN)	330	if (image.flags & IM_ROOT_ALIGN)
358	{	331	{
359	x = -target_x;	332	x = -target_x;
360	y = -target_y;	333	y = -target_y;
361	}	334	}
362	else	335	else
363	{	336	{
364	x = make_align_position (h_align, target_width, w);	337	x = make_align_position (image.h_align, target_width, w);
365	y = make_align_position (v_align, target_height, h);	338	y = make_align_position (image.v_align, target_height, h);
366	}
367
368	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
369	if (!(bg_flags & BG_TILE)
370	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
371	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
372	|| w > target_width || h > target_height)
373	bg_flags |= BG_IS_SIZE_SENSITIVE;
374	}
375
376	# ifdef HAVE_AFTERIMAGE
377	bool
378	rxvt_term::render_image (unsigned long tr_flags)
379	{
380	init_asv ();
381
382	ASImage *background = NULL;
383	ARGB32 background_tint = TINT_LEAVE_SAME;
384
385	# ifdef ENABLE_TRANSPARENCY
386	if (tr_flags)
387	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
388
389	if (tr_flags & BG_NEEDS_TINT)
390	{	339	}
391	ShadingInfo as_shade;	340	}
392	as_shade.shading = shade;
393		341
394	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	342	# ifdef HAVE_PIXBUF
395	if (bg_flags & BG_TINT_SET)	343	bool
396	tint.get (c);	344	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
397	as_shade.tintColor.red = c.r;	345	int src_x, int src_y, int dst_x, int dst_y,
398	as_shade.tintColor.green = c.g;	346	unsigned int width, unsigned int height)
399	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;
400		356
401	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)))
402	}	391	{
403		392	XDestroyImage (ximage);
404	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)	393	return false;
405	{	394	}
406	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,	395
407	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,	396	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
408	100, ASIMAGE_QUALITY_DEFAULT);	397
409	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)
410	{	422	{
411	destroy_asimage (&background);	423	a = pixel[3];
412	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);
413	}	445	}
414	}
415	# endif
416		446
417	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);
418		473
419	int target_width = szHint.width;	474	int target_width = szHint.width;
420	int target_height = szHint.height;	475	int target_height = szHint.height;
421	int new_pmap_width = target_width;	476	int new_pmap_width = target_width;
422	int new_pmap_height = target_height;	477	int new_pmap_height = target_height;
…		…
424	int x = 0;	479	int x = 0;
425	int y = 0;	480	int y = 0;
426	int w = 0;	481	int w = 0;
427	int h = 0;	482	int h = 0;
428		483
429	if (original_asim)	484	get_image_geometry (image, w, h, x, y);
430	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
431		485
432	if (!original_asim
433	|| (!(bg_flags & BG_ROOT_ALIGN)
434	&& (x >= target_width
435	|| y >= target_height
436	|| (x + w <= 0)
437	|| (y + h <= 0))))
438	{
439	if (background)
440	{
441	new_pmap_width = background->width;
442	new_pmap_height = background->height;
443	result = background;
444
445	if (background_tint != TINT_LEAVE_SAME)
446	{
447	ASImage *tmp = tile_asimage (asv, background, 0, 0,
448	target_width, target_height, background_tint,
449	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
450	if (tmp)
451	result = tmp;
452	}
453	}
454	else
455	new_pmap_width = new_pmap_height = 0;
456	}
457	else
458	{
459	result = original_asim;
460
461	if ((w != original_asim->width)
462	|| (h != original_asim->height))
463	{
464	result = scale_asimage (asv, original_asim,
465	w, h,
466	background ? ASA_ASImage : ASA_XImage,
467	100, ASIMAGE_QUALITY_DEFAULT);
468	}
469
470	if (background == NULL)
471	{
472	if (bg_flags & BG_TILE)
473	{
474	/* if tiling - pixmap has to be sized exactly as the image,
475	but there is no need to make it bigger than the window! */
476	new_pmap_width = min (result->width, target_width);
477	new_pmap_height = min (result->height, target_height);
478
479	/* we also need to tile our image in both directions */
480	ASImage *tmp = tile_asimage (asv, result,
481	(int)result->width - x,
482	(int)result->height - y,
483	new_pmap_width,
484	new_pmap_height,
485	TINT_LEAVE_SAME, ASA_XImage,
486	100, ASIMAGE_QUALITY_DEFAULT);
487	if (tmp)
488	{
489	if (result != original_asim)
490	destroy_asimage (&result);
491
492	result = tmp;
493	}
494	}
495	}
496	else
497	{
498	/* if blending background and image - pixmap has to be sized same as target window */
499	ASImageLayer *layers = create_image_layers (2);
500
501	layers[0].im = background;
502	layers[0].clip_width = target_width;
503	layers[0].clip_height = target_height;
504	layers[0].tint = background_tint;
505	layers[1].im = result;
506
507	if (bg_flags & BG_TILE)
508	{
509	/* tile horizontally */
510	while (x > 0) x -= (int)result->width;
511	layers[1].dst_x = x;
512	layers[1].clip_width = result->width+target_width;
513	}
514	else
515	{
516	/* clip horizontally */
517	layers[1].dst_x = x;
518	layers[1].clip_width = result->width;
519	}
520
521	if (bg_flags & BG_TILE)
522	{
523	while (y > 0) y -= (int)result->height;
524	layers[1].dst_y = y;
525	layers[1].clip_height = result->height + target_height;
526	}
527	else
528	{
529	layers[1].dst_y = y;
530	layers[1].clip_height = result->height;
531	}
532
533	if (rs[Rs_blendtype])
534	{
535	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
536	if (layers[1].merge_scanlines == NULL)
537	layers[1].merge_scanlines = alphablend_scanlines;
538	}
539
540	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
541	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
542
543	if (tmp)
544	{
545	if (result != original_asim)
546	destroy_asimage (&result);
547
548	result = tmp;
549	}
550
551	free (layers);
552	}
553	}
554
555	bool ret = false;
556
557	if (result)
558	{
559	XGCValues gcv;
560	GC gc;
561
562	/* create Pixmap */
563	if (bg_pixmap == None
564	|| bg_pmap_width != new_pmap_width
565	|| bg_pmap_height != new_pmap_height)
566	{
567	if (bg_pixmap)
568	XFreePixmap (dpy, bg_pixmap);
569	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
570	bg_pmap_width = new_pmap_width;
571	bg_pmap_height = new_pmap_height;
572	}
573	/* fill with background color (if result's not completely overlapping it) */
574	gcv.foreground = pix_colors[Color_bg];
575	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
576
577	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
578	int dst_width = result->width, dst_height = result->height;
579	if (background == NULL)
580	{
581	if (!(bg_flags & BG_TILE))
582	{
583	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
584	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
585	}
586
587	if (dst_x > 0 || dst_y > 0
588	|| dst_x + dst_width < new_pmap_width
589	|| dst_y + dst_height < new_pmap_height)
590	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
591	}
592
593	/* put result on pixmap */
594	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
595	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
596
597	if (result != background && result != original_asim)
598	destroy_asimage (&result);
599
600	XFreeGC (dpy, gc);
601
602	ret = true;
603	}
604
605	if (background)
606	destroy_asimage (&background);
607
608	return ret;
609	}
610	# endif /* HAVE_AFTERIMAGE */
611
612	# ifdef HAVE_PIXBUF
613	bool
614	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
615	int src_x, int src_y, int dst_x, int dst_y,
616	unsigned int width, unsigned int height)
617	{
618	XImage *ximage;
619	char *data, *line;
620	int bytes_per_pixel;
621	int width_r, width_g, width_b;
622	int sh_r, sh_g, sh_b;
623	int rowstride;
624	int channels;
625	unsigned char *row;
626
627	if (visual->c_class != TrueColor)
628	return false;
629
630	if (depth == 24 || depth == 32)
631	bytes_per_pixel = 4;
632	else if (depth == 15 || depth == 16)
633	bytes_per_pixel = 2;
634	else
635	return false;
636
637	width_r = ecb_popcount32 (visual->red_mask);
638	width_g = ecb_popcount32 (visual->green_mask);
639	width_b = ecb_popcount32 (visual->blue_mask);
640
641	if (width_r > 8 || width_g > 8 || width_b > 8)
642	return false;
643
644	sh_r = ecb_ctz32 (visual->red_mask);
645	sh_g = ecb_ctz32 (visual->green_mask);
646	sh_b = ecb_ctz32 (visual->blue_mask);
647
648	if (width > INT_MAX / height / bytes_per_pixel)
649	return false;
650
651	data = (char *)malloc (width * height * bytes_per_pixel);
652	if (!data)
653	return false;
654
655	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
656	width, height, bytes_per_pixel * 8, 0);
657	if (!ximage)
658	{
659	free (data);
660	return false;
661	}
662
663	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
664
665	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
666	channels = gdk_pixbuf_get_n_channels (pixbuf);
667	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
668	line = data;
669
670	for (int y = 0; y < height; y++)
671	{
672	for (int x = 0; x < width; x++)
673	{
674	unsigned char *pixel = row + x * channels;
675	uint32_t value;
676
677	value = ((pixel[0] >> (8 - width_r)) << sh_r)
678	| ((pixel[1] >> (8 - width_g)) << sh_g)
679	| ((pixel[2] >> (8 - width_b)) << sh_b);
680
681	if (bytes_per_pixel == 4)
682	((uint32_t *)line)[x] = value;
683	else
684	((uint16_t *)line)[x] = value;
685	}
686
687	row += rowstride;
688	line += ximage->bytes_per_line;
689	}
690
691	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
692	XDestroyImage (ximage);
693	return true;
694	}
695
696	bool
697	rxvt_term::render_image (unsigned long tr_flags)
698	{
699	if (!pixbuf)
700	return false;
701
702	if (tr_flags
703	&& !(bg_flags & BG_HAS_RENDER))
704	return false;
705
706	GdkPixbuf *result;
707
708	int image_width = gdk_pixbuf_get_width (pixbuf);
709	int image_height = gdk_pixbuf_get_height (pixbuf);
710
711	int target_width = szHint.width;
712	int target_height = szHint.height;
713	int new_pmap_width = target_width;
714	int new_pmap_height = target_height;
715
716	int x = 0;
717	int y = 0;
718	int w = 0;
719	int h = 0;
720
721	get_image_geometry (image_width, image_height, w, h, x, y);
722
723	if (!(bg_flags & BG_ROOT_ALIGN)	486	if (!(image.flags & IM_ROOT_ALIGN)
724	&& (x >= target_width	487	&& (x >= target_width
725	|| y >= target_height	488	|| y >= target_height
726	|| (x + w <= 0)	489	|| x + w <= 0
727	|| (y + h <= 0)))	490	|| y + h <= 0))
728	return false;	491	return false;
729		492
730	result = pixbuf;	493	result = pixbuf;
731		494
732	if ((w != image_width)	495	if (w != image_width
733	|| (h != image_height))	496	|| h != image_height)
734	{	497	{
735	result = gdk_pixbuf_scale_simple (pixbuf,	498	result = gdk_pixbuf_scale_simple (pixbuf,
736	w, h,	499	w, h,
737	GDK_INTERP_BILINEAR);	500	GDK_INTERP_BILINEAR);
738	}	501	}
…		…
742		505
743	bool ret = false;	506	bool ret = false;
744		507
745	XGCValues gcv;	508	XGCValues gcv;
746	GC gc;	509	GC gc;
747	Pixmap root_pmap;	510	Pixmap tmp_pixmap;
748		511
749	image_width = gdk_pixbuf_get_width (result);	512	image_width = gdk_pixbuf_get_width (result);
750	image_height = gdk_pixbuf_get_height (result);	513	image_height = gdk_pixbuf_get_height (result);
751		514
752	if (tr_flags)	515	if (need_blend)
753	{	516	{
754	root_pmap = bg_pixmap;	517	tmp_pixmap = bg_pixmap;
755	bg_pixmap = None;	518	bg_pixmap = None;
756	}	519	}
757	else	520	else
758	{	521	{
759	if (bg_flags & BG_TILE)	522	if (image.flags & IM_TILE)
760	{	523	{
761	new_pmap_width = min (image_width, target_width);	524	new_pmap_width = min (image_width, target_width);
762	new_pmap_height = min (image_height, target_height);	525	new_pmap_height = min (image_height, target_height);
763	}	526	}
764	}	527	}
…		…
777	gcv.foreground = pix_colors[Color_bg];	540	gcv.foreground = pix_colors[Color_bg];
778	gc = XCreateGC (dpy, vt, GCForeground, &gcv);	541	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
779		542
780	if (gc)	543	if (gc)
781	{	544	{
782	if (bg_flags & BG_TILE)	545	if (image.flags & IM_TILE)
783	{	546	{
784	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);	547	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
785	pixbuf_to_pixmap (result, tile, gc,	548	pixbuf_to_pixmap (result, tile, gc,
786	0, 0,	549	0, 0,
787	0, 0,	550	0, 0,
…		…
815	dst_x, dst_y,	578	dst_x, dst_y,
816	dst_width, dst_height);	579	dst_width, dst_height);
817	}	580	}
818		581
819	#if XRENDER	582	#if XRENDER
820	if (tr_flags)	583	if (need_blend)
821	{	584	{
822	XRenderPictureAttributes pa;
823
824	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	585	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		586
825	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	587	Picture src = XRenderCreatePicture (dpy, tmp_pixmap, format, 0, 0);
826		588
827	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
828	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	589	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
829		590
830	pa.repeat = True;	591	Picture mask = create_xrender_mask (dpy, vt, False, False);
831	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
832	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
833	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
834	XFreePixmap (dpy, mask_pmap);
835		592
836	XRenderColor mask_c;	593	XRenderColor mask_c;
837		594
838	mask_c.alpha = 0x8000;	595	mask_c.alpha = 0x8000;
839	mask_c.red = 0;	596	mask_c.red =
840	mask_c.green = 0;	597	mask_c.green =
841	mask_c.blue = 0;	598	mask_c.blue = 0;
842	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);	599	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		600
843	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);
844		602
845	XRenderFreePicture (dpy, src);	603	XRenderFreePicture (dpy, src);
846	XRenderFreePicture (dpy, dst);	604	XRenderFreePicture (dpy, dst);
847	XRenderFreePicture (dpy, mask);	605	XRenderFreePicture (dpy, mask);
…		…
854	}	612	}
855		613
856	if (result != pixbuf)	614	if (result != pixbuf)
857	g_object_unref (result);	615	g_object_unref (result);
858		616
859	if (tr_flags)	617	if (need_blend)
860	XFreePixmap (dpy, root_pmap);	618	XFreePixmap (dpy, tmp_pixmap);
861		619
862	return ret;	620	return ret;
863	}	621	}
864	# endif /* HAVE_PIXBUF */	622	# endif /* HAVE_PIXBUF */
865		623
866	bool	624	bool
867	rxvt_term::bg_set_file (const char *file)	625	rxvt_image::set_file (const char *file)
868	{	626	{
869	if (!file || !*file)	627	if (!file || !*file)
870	return false;	628	return false;
871		629
		630	bool ret = false;
872	if (const char *p = strchr (file, ';'))	631	const char *p = strchr (file, ';');
		632
		633	if (p)
873	{	634	{
874	size_t len = p - file;	635	size_t len = p - file;
875	char *f = rxvt_temp_buf<char> (len + 1);	636	char *f = rxvt_temp_buf<char> (len + 1);
876	memcpy (f, file, len);	637	memcpy (f, file, len);
877	f[len] = '\0';	638	f[len] = '\0';
878	file = f;	639	file = f;
879	}	640	}
880		641
881	# ifdef HAVE_AFTERIMAGE
882	if (!asimman)
883	asimman = create_generic_imageman (rs[Rs_path]);
884	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
885	if (image)
886	{
887	if (original_asim)
888	safe_asimage_destroy (original_asim);
889	original_asim = image;
890	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
891	return true;
892	}
893	# endif
894
895	# ifdef HAVE_PIXBUF	642	# ifdef HAVE_PIXBUF
896	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	643	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
897	if (image)	644	if (image)
898	{	645	{
899	if (pixbuf)	646	if (pixbuf)
900	g_object_unref (pixbuf);	647	g_object_unref (pixbuf);
901	pixbuf = image;	648	pixbuf = image;
902	bg_flags |= BG_IS_FROM_FILE;	649	flags |= IM_IS_SET;
903	return true;	650	ret = true;
904	}	651	}
905	# endif	652	# endif
906		653
		654	if (ret)
		655	{
		656	if (p)
		657	set_geometry (p + 1);
		658	else
		659	set_default_geometry ();
		660	}
		661
907	return false;	662	return ret;
908	}	663	}
909		664
910	# endif /* BG_IMAGE_FROM_FILE */	665	# endif /* BG_IMAGE_FROM_FILE */
911		666
912	# ifdef ENABLE_TRANSPARENCY	667	# ifdef ENABLE_TRANSPARENCY
913	bool
914	rxvt_term::bg_set_transparent ()
915	{
916	if (!(bg_flags & BG_IS_TRANSPARENT))
917	{
918	bg_flags |= BG_IS_TRANSPARENT;
919	return true;
920	}
921
922	return false;
923	}
924
925	bool	668	bool
926	rxvt_term::bg_set_blur (const char *geom)	669	rxvt_term::bg_set_blur (const char *geom)
927	{	670	{
928	bool changed = false;	671	bool changed = false;
929	unsigned int hr, vr;	672	unsigned int hr, vr;
…		…
948	{	691	{
949	changed = true;	692	changed = true;
950	v_blurRadius = vr;	693	v_blurRadius = vr;
951	}	694	}
952		695
953	if (v_blurRadius == 0 && h_blurRadius == 0)
954	bg_flags &= ~BG_NEEDS_BLUR;
955	else
956	bg_flags |= BG_NEEDS_BLUR;
957
958	return changed;	696	return changed;
959	}	697	}
960		698
961	void	699	bool
962	rxvt_term::set_tint_shade_flags ()	700	rxvt_term::bg_set_tint (rxvt_color &new_tint)
963	{	701	{
964	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	702	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
965	bool has_shade = shade != 100;	703	{
966		704	tint = new_tint;
967	bg_flags &= ~BG_TINT_FLAGS;	705	bg_flags |= BG_TINT_SET;
968		706
969	if (bg_flags & BG_TINT_SET)	707	rgba c;
970	{
971	tint.get (c);	708	tint.get (c);
972	if (!has_shade
973	&& (c.r <= 0x00ff || c.r >= 0xff00)	709	if ((c.r <= 0x00ff || c.r >= 0xff00)
974	&& (c.g <= 0x00ff || c.g >= 0xff00)	710	&& (c.g <= 0x00ff || c.g >= 0xff00)
975	&& (c.b <= 0x00ff || c.b >= 0xff00))	711	&& (c.b <= 0x00ff || c.b >= 0xff00))
976	bg_flags |= BG_TINT_BITAND;	712	bg_flags |= BG_TINT_BITAND;
977	}	713	else
978
979	if (has_shade || (bg_flags & BG_TINT_SET))
980	bg_flags |= BG_NEEDS_TINT;
981	}
982
983	bool
984	rxvt_term::bg_set_tint (rxvt_color &new_tint)
985	{
986	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
987	{
988	tint = new_tint;
989	bg_flags |= BG_TINT_SET;	714	bg_flags &= ~BG_TINT_BITAND;
990	set_tint_shade_flags ();	715
991	return true;	716	return true;
992	}	717	}
993		718
994	return false;	719	return false;
995	}	720	}
996		721
997	bool	722	bool
998	rxvt_term::bg_set_shade (const char *shade_str)	723	rxvt_term::bg_set_shade (const char *shade_str)
999	{	724	{
1000	int new_shade = (shade_str) ? atoi (shade_str) : 100;	725	int new_shade = atoi (shade_str);
1001		726
1002	clamp_it (new_shade, -100, 200);	727	clamp_it (new_shade, -100, 200);
1003	if (new_shade < 0)	728	if (new_shade < 0)
1004	new_shade = 200 - (100 + new_shade);	729	new_shade = 200 - (100 + new_shade);
1005		730
1006	if (new_shade != shade)	731	if (new_shade != shade)
1007	{	732	{
1008	shade = new_shade;	733	shade = new_shade;
1009	set_tint_shade_flags ();
1010	return true;	734	return true;
1011	}	735	}
1012		736
1013	return false;	737	return false;
1014	}	738	}
…		…
1035	params[i+2] = XDoubleToFixed (kernel[i] / sum);	759	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1036	}	760	}
1037	#endif	761	#endif
1038		762
1039	bool	763	bool
1040	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	764	rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
1041	{	765	{
1042	bool ret = false;	766	bool ret = false;
1043	#if XRENDER	767	#if XRENDER
		768	if (!(bg_flags & BG_HAS_RENDER_CONV))
		769	return false;
		770
1044	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;	771	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1045	double *kernel = (double *)malloc (size * sizeof (double));	772	double *kernel = (double *)malloc (size * sizeof (double));
1046	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));	773	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1047		774
1048	XRenderPictureAttributes pa;	775	XRenderPictureAttributes pa;
1049	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	776	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1050		777
		778	pa.repeat = RepeatPad;
1051	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);
1052	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	781	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		782	XFreePixmap (dpy, tmp);
1053		783
1054	if (kernel && params)	784	if (kernel && params)
1055	{	785	{
1056	if (h_blurRadius)
1057	{
1058	size = h_blurRadius * 2 + 1;	786	size = h_blurRadius * 2 + 1;
1059	get_gaussian_kernel (h_blurRadius, size, kernel, params);	787	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1060		788
1061	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	789	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1062	XRenderComposite (dpy,	790	XRenderComposite (dpy,
1063	PictOpSrc,	791	PictOpSrc,
1064	src,	792	src,
1065	None,	793	None,
1066	dst,	794	dst,
1067	0, 0,	795	0, 0,
1068	0, 0,	796	0, 0,
1069	0, 0,	797	0, 0,
1070	width, height);	798	width, height);
1071	}
1072		799
1073	if (v_blurRadius)	800	::swap (src, dst);
1074	{	801
1075	size = v_blurRadius * 2 + 1;	802	size = v_blurRadius * 2 + 1;
1076	get_gaussian_kernel (v_blurRadius, size, kernel, params);	803	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1077	::swap (params[0], params[1]);	804	::swap (params[0], params[1]);
1078		805
1079	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	806	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1080	XRenderComposite (dpy,	807	XRenderComposite (dpy,
1081	PictOpSrc,	808	PictOpSrc,
1082	src,	809	src,
1083	None,	810	None,
1084	dst,	811	dst,
1085	0, 0,	812	0, 0,
1086	0, 0,	813	0, 0,
1087	0, 0,	814	0, 0,
1088	width, height);	815	width, height);
1089	}
1090		816
1091	ret = true;	817	ret = true;
1092	}	818	}
1093		819
1094	free (kernel);	820	free (kernel);
…		…
1098	#endif	824	#endif
1099	return ret;	825	return ret;
1100	}	826	}
1101		827
1102	bool	828	bool
1103	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	829	rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
1104	{	830	{
1105	bool ret = false;	831	bool ret = false;
1106		832
1107	if (bg_flags & BG_TINT_BITAND)	833	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
1108	{	834	{
1109	XGCValues gcv;	835	XGCValues gcv;
1110	GC gc;	836	GC gc;
1111		837
1112	/* In this case we can tint image server-side getting significant	838	/* In this case we can tint image server-side getting significant
…		…
1121	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);	847	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1122	ret = true;	848	ret = true;
1123	XFreeGC (dpy, gc);	849	XFreeGC (dpy, gc);
1124	}	850	}
1125	}	851	}
1126	else
1127	{
1128	# if XRENDER	852	# if XRENDER
		853	else if (bg_flags & BG_HAS_RENDER)
		854	{
1129	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	855	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1130		856
1131	if (bg_flags & BG_TINT_SET)	857	if (bg_flags & BG_TINT_SET)
1132	tint.get (c);	858	tint.get (c);
1133		859
…		…
1142	c.r = c.r * (200 - shade) / 100;	868	c.r = c.r * (200 - shade) / 100;
1143	c.g = c.g * (200 - shade) / 100;	869	c.g = c.g * (200 - shade) / 100;
1144	c.b = c.b * (200 - shade) / 100;	870	c.b = c.b * (200 - shade) / 100;
1145	}	871	}
1146		872
1147	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1148	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	873	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1149	XRenderPictureAttributes pa;
1150		874
1151	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	875	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1152		876
1153	pa.repeat = True;	877	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1154		878
1155	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);	879	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1156	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1157	XFreePixmap (dpy, overlay_pmap);
1158
1159	pa.component_alpha = True;
1160	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1161	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1162	XFreePixmap (dpy, mask_pmap);
1163		880
1164	XRenderColor mask_c;	881	XRenderColor mask_c;
1165		882
1166	mask_c.alpha = 0xffff;	883	mask_c.alpha = 0xffff;
1167	mask_c.red =	884	mask_c.red =
…		…
1172	mask_c.alpha = 0;	889	mask_c.alpha = 0;
1173	mask_c.red = 0xffff - c.r;	890	mask_c.red = 0xffff - c.r;
1174	mask_c.green = 0xffff - c.g;	891	mask_c.green = 0xffff - c.g;
1175	mask_c.blue = 0xffff - c.b;	892	mask_c.blue = 0xffff - c.b;
1176	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);	893	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		894
1177	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);
1178		896
1179	if (shade > 100)	897	if (shade > 100)
1180	{	898	{
1181	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1182	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;
1183	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);	903	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1184		904
1185	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);
1186	}	906	}
1187		907
1188	ret = true;	908	ret = true;
1189		909
1190	XRenderFreePicture (dpy, mask_pic);	910	XRenderFreePicture (dpy, mask_pic);
1191	XRenderFreePicture (dpy, overlay_pic);	911	XRenderFreePicture (dpy, overlay_pic);
1192	XRenderFreePicture (dpy, back_pic);	912	XRenderFreePicture (dpy, back_pic);
		913	}
1193	# endif	914	# endif
1194	}
1195		915
1196	return ret;	916	return ret;
1197	}	917	}
1198		918
1199	/*	919	/*
1200	* 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
1201	* 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
1202	* our window.	922	* our window.
1203	*/	923	*/
1204	unsigned long	924	bool
1205	rxvt_term::make_transparency_pixmap ()	925	rxvt_term::make_transparency_pixmap ()
1206	{	926	{
1207	unsigned long result = 0;	927	bool ret = false;
1208		928
1209	/* 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
1210	* be always up-to-date, so let's use it :	930	* be always up-to-date, so let's use it :
1211	*/	931	*/
1212	int screen = display->screen;	932	int screen = display->screen;
…		…
1250	#if XRENDER	970	#if XRENDER
1251	if (bg_flags & BG_HAS_RENDER)	971	if (bg_flags & BG_HAS_RENDER)
1252	{	972	{
1253	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);
1254		974
1255	XRenderPictureAttributes pa;
1256
1257	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));	975	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1258	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);	976	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1259		977
1260	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	978	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1261	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	979	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1262		980
1263	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);
1264		982
1265	XRenderFreePicture (dpy, src);	983	XRenderFreePicture (dpy, src);
1266	XRenderFreePicture (dpy, dst);	984	XRenderFreePicture (dpy, dst);
…		…
1283	bg_pmap_width = window_width;	1001	bg_pmap_width = window_width;
1284	bg_pmap_height = window_height;	1002	bg_pmap_height = window_height;
1285	}	1003	}
1286		1004
1287	/* straightforward pixmap copy */	1005	/* straightforward pixmap copy */
1288	while (sx < 0) sx += root_width;	1006	while (sx < 0) sx += root_pmap_width;
1289	while (sy < 0) sy += root_height;	1007	while (sy < 0) sy += root_pmap_height;
1290		1008
1291	gcv.tile = recoded_root_pmap;	1009	gcv.tile = recoded_root_pmap;
1292	gcv.fill_style = FillTiled;	1010	gcv.fill_style = FillTiled;
1293	gcv.ts_x_origin = -sx;	1011	gcv.ts_x_origin = -sx;
1294	gcv.ts_y_origin = -sy;	1012	gcv.ts_y_origin = -sy;
1295	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	1013	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1296		1014
1297	if (gc)	1015	if (gc)
1298	{	1016	{
1299	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);	1017	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1300	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
1301	XFreeGC (dpy, gc);	1048	XFreeGC (dpy, gc);
1302
1303	if (!(bg_flags & BG_CLIENT_RENDER))
1304	{
1305	if ((bg_flags & BG_NEEDS_BLUR)
1306	&& (bg_flags & BG_HAS_RENDER_CONV))
1307	{
1308	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1309	result &= ~BG_NEEDS_BLUR;
1310	}
1311	if ((bg_flags & BG_NEEDS_TINT)
1312	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1313	{
1314	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1315	result &= ~BG_NEEDS_TINT;
1316	}
1317	} /* server side rendering completed */
1318	}	1049	}
1319		1050
1320	if (recoded_root_pmap != root_pixmap)	1051	if (recoded_root_pmap != root_pixmap)
1321	XFreePixmap (dpy, recoded_root_pmap);	1052	XFreePixmap (dpy, recoded_root_pmap);
1322		1053
1323	return result;	1054	return ret;
1324	}	1055	}
1325		1056
1326	void	1057	void
1327	rxvt_term::bg_set_root_pixmap ()	1058	rxvt_term::bg_set_root_pixmap ()
1328	{	1059	{
…		…
1332		1063
1333	root_pixmap = new_root_pixmap;	1064	root_pixmap = new_root_pixmap;
1334	}	1065	}
1335	# endif /* ENABLE_TRANSPARENCY */	1066	# endif /* ENABLE_TRANSPARENCY */
1336		1067
1337	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1338	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1339	# endif
1340
1341	bool	1068	bool
1342	rxvt_term::bg_render ()	1069	rxvt_term::bg_render ()
1343	{	1070	{
1344	unsigned long tr_flags = 0;
1345
1346	bg_invalidate ();	1071	bg_invalidate ();
1347	# ifdef ENABLE_TRANSPARENCY	1072	# ifdef ENABLE_TRANSPARENCY
1348	if (bg_flags & BG_IS_TRANSPARENT)	1073	if (bg_flags & BG_IS_TRANSPARENT)
1349	{	1074	{
1350	/* we need to re-generate transparency pixmap in that case ! */	1075	/* we need to re-generate transparency pixmap in that case ! */
1351	tr_flags = make_transparency_pixmap ();	1076	if (make_transparency_pixmap ())
1352	if (tr_flags == 0)
1353	return false;
1354	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1355	bg_flags |= BG_IS_VALID;	1077	bg_flags |= BG_IS_VALID;
1356	}	1078	}
1357	# endif	1079	# endif
1358		1080
1359	# ifdef BG_IMAGE_FROM_FILE	1081	# ifdef BG_IMAGE_FROM_FILE
1360	if ((bg_flags & BG_IS_FROM_FILE)	1082	if (bg_image.flags & IM_IS_SET)
1361	|| (tr_flags & BG_EFFECTS_FLAGS))
1362	{	1083	{
1363	if (render_image (tr_flags))	1084	if (render_image (bg_image))
1364	bg_flags |= BG_IS_VALID;	1085	bg_flags |= BG_IS_VALID;
1365	}
1366	# endif
1367
1368	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1369	XImage *result = NULL;
1370
1371	if (tr_flags && !(bg_flags & BG_IS_VALID))
1372	{
1373	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1374	}
1375
1376	if (result)
1377	{
1378	/* our own client-side tinting */
1379	if (tr_flags & BG_NEEDS_TINT)
1380	{
1381	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1382	if (bg_flags & BG_TINT_SET)
1383	tint.get (c);
1384	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1385	}
1386
1387	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1388
1389	if (gc)
1390	{
1391	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1392
1393	XFreeGC (dpy, gc);
1394	bg_flags |= BG_IS_VALID;
1395	}
1396
1397	XDestroyImage (result);
1398	}	1086	}
1399	# endif	1087	# endif
1400		1088
1401	if (!(bg_flags & BG_IS_VALID))	1089	if (!(bg_flags & BG_IS_VALID))
1402	{	1090	{
…		…
1439	#endif	1127	#endif
1440	}	1128	}
1441		1129
1442	#endif /* HAVE_BG_PIXMAP */	1130	#endif /* HAVE_BG_PIXMAP */
1443		1131
1444	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	1132	#ifdef ENABLE_TRANSPARENCY
1445	/* taken from aterm-0.4.2 */	1133	/* based on code from aterm-0.4.2 */
1446		1134
1447	static void	1135	static inline void
1448	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)
1449	{	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;
1450	int sh_r, sh_g, sh_b;	1151	int sh_r, sh_g, sh_b;
1451	uint32_t mask_r, mask_g, mask_b;	1152	uint32_t mask_r, mask_g, mask_b;
1452	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;	1153	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1453	rgba low;	1154	unsigned short low;
1454	rgba high;
1455	int i;
1456	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;	1155	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1457		1156
1458	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;	1157	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1459		1158
1460	/* for convenience */	1159	/* for convenience */
1461	mask_r = visual->red_mask;	1160	mask_r = visual->red_mask;
1462	mask_g = visual->green_mask;	1161	mask_g = visual->green_mask;
1463	mask_b = visual->blue_mask;	1162	mask_b = visual->blue_mask;
1464		1163
1465	/* boring lookup table pre-initialization */	1164	/* boring lookup table pre-initialization */
1466	switch (ximage->depth)	1165	sh_r = ecb_ctz32 (mask_r);
1467	{	1166	sh_g = ecb_ctz32 (mask_g);
1468	case 15:	1167	sh_b = ecb_ctz32 (mask_b);
1469	if ((mask_r != 0x7c00) ||	1168
1470	(mask_g != 0x03e0) ||	1169	size_r = mask_r >> sh_r;
1471	(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)
1472	return;	1174	return;
1473	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));
1474	lookup_r = lookup;	1177	lookup_r = lookup;
1475	lookup_g = lookup+32;	1178	lookup_g = lookup + size_r;
1476	lookup_b = lookup+32+32;	1179	lookup_b = lookup + size_r + size_g;
1477	sh_r = 10;	1180
1478	sh_g = 5;	1181	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1479	sh_b = 0;	1182
1480	break;	1183	if (bg_flags & BG_TINT_SET)
1481	case 16:	1184	tint.get (c);
1482	if ((mask_r != 0xf800) ||
1483	(mask_g != 0x07e0) ||
1484	(mask_b != 0x001f))
1485	return;
1486	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1487	lookup_r = lookup;
1488	lookup_g = lookup+32;
1489	lookup_b = lookup+32+64;
1490	sh_r = 11;
1491	sh_g = 5;
1492	sh_b = 0;
1493	break;
1494	case 24:
1495	if ((mask_r != 0xff0000) ||
1496	(mask_g != 0x00ff00) ||
1497	(mask_b != 0x0000ff))
1498	return;
1499	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1500	lookup_r = lookup;
1501	lookup_g = lookup+256;
1502	lookup_b = lookup+256+256;
1503	sh_r = 16;
1504	sh_g = 8;
1505	sh_b = 0;
1506	break;
1507	case 32:
1508	if ((mask_r != 0xff0000) ||
1509	(mask_g != 0x00ff00) ||
1510	(mask_b != 0x0000ff))
1511	return;
1512	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1513	lookup_r = lookup;
1514	lookup_g = lookup+256;
1515	lookup_b = lookup+256+256;
1516	sh_r = 16;
1517	sh_g = 8;
1518	sh_b = 0;
1519	break;
1520	default:
1521	return; /* we do not support this color depth */
1522	}
1523		1185
1524	/* prepare limits for color transformation (each channel is handled separately) */	1186	/* prepare limits for color transformation (each channel is handled separately) */
1525	if (shade > 100)	1187	if (shade > 100)
1526	{	1188	{
1527	shade = 200 - shade;
1528
1529	high.r = c.r * shade / 100;
1530	high.g = c.g * shade / 100;
1531	high.b = c.b * shade / 100;
1532
1533	low.r = 65535 * (100 - shade) / 100;	1189	c.r = c.r * (200 - shade) / 100;
1534	low.g = 65535 * (100 - shade) / 100;	1190	c.g = c.g * (200 - shade) / 100;
1535	low.b = 65535 * (100 - shade) / 100;	1191	c.b = c.b * (200 - shade) / 100;
		1192
		1193	low = 0xffff * (shade - 100) / 100;
1536	}	1194	}
1537	else	1195	else
1538	{	1196	{
1539	high.r = c.r * shade / 100;	1197	c.r = c.r * shade / 100;
1540	high.g = c.g * shade / 100;	1198	c.g = c.g * shade / 100;
1541	high.b = c.b * shade / 100;	1199	c.b = c.b * shade / 100;
1542		1200
1543	low.r = low.g = low.b = 0;	1201	low = 0;
1544	}	1202	}
1545		1203
1546	/* fill our lookup tables */	1204	/* fill our lookup tables */
1547	for (i = 0; i <= mask_r>>sh_r; i++)	1205	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1548	{	1206	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1549	uint32_t tmp;	1207	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1550	tmp = i * high.r;
1551	tmp += (mask_r>>sh_r) * low.r;
1552	lookup_r[i] = (tmp/65535)<<sh_r;
1553	}
1554	for (i = 0; i <= mask_g>>sh_g; i++)
1555	{
1556	uint32_t tmp;
1557	tmp = i * high.g;
1558	tmp += (mask_g>>sh_g) * low.g;
1559	lookup_g[i] = (tmp/65535)<<sh_g;
1560	}
1561	for (i = 0; i <= mask_b>>sh_b; i++)
1562	{
1563	uint32_t tmp;
1564	tmp = i * high.b;
1565	tmp += (mask_b>>sh_b) * low.b;
1566	lookup_b[i] = (tmp/65535)<<sh_b;
1567	}
1568		1208
1569	/* apply table to input image (replacing colors by newly calculated ones) */	1209	/* apply table to input image (replacing colors by newly calculated ones) */
1570	if (ximage->bits_per_pixel == 32	1210	if (ximage->bits_per_pixel == 32
1571	&& (ximage->depth == 24 || ximage->depth == 32)
1572	&& ximage->byte_order == host_byte_order)	1211	&& ximage->byte_order == host_byte_order)
1573	{	1212	{
1574	uint32_t *p1, *pf, *p, *pl;	1213	char *line = ximage->data;
1575	p1 = (uint32_t *) ximage->data;
1576	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1577		1214
1578	while (p1 < pf)	1215	for (int y = 0; y < ximage->height; y++)
1579	{
1580	p = p1;
1581	pl = p1 + ximage->width;
1582	for (; p < pl; p++)
1583	{	1216	{
1584	*p = lookup_r[(*p & 0xff0000) >> 16] |	1217	uint32_t *p = (uint32_t *)line;
1585	lookup_g[(*p & 0x00ff00) >> 8] |	1218	for (int x = 0; x < ximage->width; x++)
1586	lookup_b[(*p & 0x0000ff)] |
1587	(*p & 0xff000000);
1588	}	1219	{
1589	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;
1590	}	1226	}
1591	}	1227	}
1592	else	1228	else
1593	{	1229	{
1594	for (int y = 0; y < ximage->height; y++)	1230	for (int y = 0; y < ximage->height; y++)
…		…
1602	}	1238	}
1603	}	1239	}
1604		1240
1605	free (lookup);	1241	free (lookup);
1606	}	1242	}
1607	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1243	#endif /* ENABLE_TRANSPARENCY */

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