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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.156 by sf-exg, Tue Aug 9 18:41:31 2011 UTC vs.
Revision 1.217 by sf-exg, Sun May 20 16:34:42 2012 UTC

…		…
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
20	* You should have received a copy of the GNU General Public License	20	* You should have received a copy of the GNU General Public License
21	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
24		24
25	#include <cmath>	25	#include <math.h>
26	#include "../config.h" /* NECESSARY */	26	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	27	#include "rxvt.h" /* NECESSARY */
28		28
29	#if XRENDER	29	#if XRENDER
30	# include <X11/extensions/Xrender.h>	30	# include <X11/extensions/Xrender.h>
…		…
32		32
33	#ifndef FilterConvolution	33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"	34	#define FilterConvolution "convolution"
35	#endif	35	#endif
36		36
37	/*	37	#ifndef RepeatPad
38	* Pixmap geometry string interpretation :	38	#define RepeatPad True
39	* Each geometry string contains zero or one scale/position	39	#endif
40	* adjustment and may optionally be followed by a colon and one or more
41	* colon-delimited pixmap operations.
42	* The following table shows the valid geometry strings and their
43	* effects on the background image :
44	*
45	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
46	* W and H are percentages of the terminal window size.
47	* X and Y are also percentages; e.g., +50+50 centers
48	* the image in the window.
49	*
50	* Pixmap Operations : (should be prepended by a colon)
51	* tile Tile image. Scaling/position modifiers above will affect
52	* the tile size and origin.
53	* propscale When scaling, scale proportionally. That is, maintain the
54	* proper aspect ratio for the image. Any portion of the
55	* background not covered by the image is filled with the
56	* current background color.
57	* hscale Scale horizontally, tile vertically ?
58	* vscale Tile horizontally, scale vertically ?
59	* scale Scale both up and down
60	* auto Same as 100x100+50+50
61	*/
62		40
63	#ifdef HAVE_BG_PIXMAP	41	#ifdef HAVE_BG_PIXMAP
		42	# if XRENDER
		43	static Picture
		44	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
		45	{
		46	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
		47
		48	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
		49	XRenderPictureAttributes pa;
		50	pa.repeat = True;
		51	pa.component_alpha = component_alpha;
		52	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
		53
		54	XFreePixmap (dpy, pixmap);
		55
		56	return mask;
		57	}
		58	# endif
		59
64	void	60	void
65	rxvt_term::bg_destroy ()	61	rxvt_term::bg_destroy ()
66	{	62	{
67	#ifdef HAVE_AFTERIMAGE
68	if (original_asim)
69	safe_asimage_destroy (original_asim);
70	if (asv)
71	destroy_asvisual (asv, 0);
72	if (asimman)
73	destroy_image_manager (asimman, 0);
74	#endif
75
76	#ifdef HAVE_PIXBUF
77	if (pixbuf)
78	g_object_unref (pixbuf);
79	#endif
80
81	if (bg_pixmap)	63	if (bg_pixmap)
82	XFreePixmap (dpy, bg_pixmap);	64	XFreePixmap (dpy, bg_pixmap);
83	}	65	}
84		66
85	bool	67	bool
…		…
103	if (bg_flags & BG_IS_TRANSPARENT)	85	if (bg_flags & BG_IS_TRANSPARENT)
104	return true;	86	return true;
105	# endif	87	# endif
106		88
107	# ifdef BG_IMAGE_FROM_FILE	89	# ifdef BG_IMAGE_FROM_FILE
108	if (bg_flags & BG_IS_FROM_FILE)	90	if (bg_image.flags & IM_IS_SET)
109	{	91	{
110	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)
111	return true;	95	return true;
112	}	96	}
113	# endif	97	# endif
114		98
115	return false;	99	return false;
…		…
122	if (bg_flags & BG_IS_TRANSPARENT)	106	if (bg_flags & BG_IS_TRANSPARENT)
123	return true;	107	return true;
124	# endif	108	# endif
125		109
126	# ifdef BG_IMAGE_FROM_FILE	110	# ifdef BG_IMAGE_FROM_FILE
127	if (bg_flags & BG_IS_FROM_FILE)	111	if (bg_image.flags & IM_IS_SET)
128	{	112	{
129	if (bg_flags & BG_ROOT_ALIGN)	113	if (bg_image.flags & IM_ROOT_ALIGN)
130	return true;	114	return true;
131	}	115	}
132	# endif	116	# endif
133		117
134	return false;	118	return false;
135	}	119	}
136		120
137	# ifdef BG_IMAGE_FROM_FILE	121	# ifdef BG_IMAGE_FROM_FILE
138	static inline bool
139	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
140	{
141	if (geom_flags & flag)
142	{
143	if (new_value > 1000)
144	new_value = 1000;
145	if (new_value != scale)
146	{
147	scale = new_value;
148	return true;
149	}
150	}
151	return false;
152	}
153
154	static inline bool
155	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
156	{
157	if (geom_flags & flag)
158	{
159	if (new_value < -100)
160	new_value = -100;
161	else if (new_value > 200)
162	new_value = 200;
163	if (new_value != align)
164	{
165	align = new_value;
166	return true;
167	}
168	}
169	return false;
170	}
171
172	static inline int	122	static inline int
173	make_align_position (int align, int window_size, int image_size)	123	make_align_position (int align, int window_size, int image_size)
174	{	124	{
175	int diff = window_size - image_size;
176	int smaller = min (image_size, window_size);
177
178	if (align >= 0 && align <= 100)	125	if (align >= 0 && align <= 100)
179	return diff * align / 100;	126	return lerp (0, window_size - image_size, align);
180	else if (align > 100 && align <= 200)	127	else if (align > 100)
181	return ((align - 100) * smaller / 100) + window_size - smaller;	128	return lerp (window_size - image_size, window_size, align - 100);
182	else if (align >= -100 && align < 0)	129	else
183	return ((align + 100) * smaller / 100) - image_size;	130	return lerp (-image_size, 0, align + 100);
184	return 0;
185	}	131	}
186		132
187	static inline int	133	static inline int
188	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)
189	{	135	{
…		…
195	src_pos = -pos;	141	src_pos = -pos;
196	dst_pos = 0;	142	dst_pos = 0;
197	dst_size += pos;	143	dst_size += pos;
198	}	144	}
199		145
200	if (dst_pos + dst_size > target_size)
201	dst_size = target_size - dst_pos;	146	min_it (dst_size, target_size - dst_pos);
202	return src_pos;	147	return src_pos;
203	}	148	}
204		149
205	bool	150	bool
206	rxvt_term::bg_set_geometry (const char *geom, bool update)	151	rxvt_image::set_geometry (const char *geom, bool update)
207	{	152	{
208	bool changed = false;	153	bool changed = false;
209	int geom_flags = 0;	154	int geom_flags = 0;
210	int x = 0, y = 0;	155	int x = h_align;
		156	int y = v_align;
211	unsigned int w = 0, h = 0;	157	unsigned int w = h_scale;
212	unsigned int n;	158	unsigned int h = v_scale;
213	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	159	unsigned long new_flags = 0;
214	const char *ops;
215		160
216	if (geom == NULL)	161	if (geom == NULL)
217	return false;	162	return false;
218		163
219	char str[256];	164	if (geom[0])
220
221	ops = strchr (geom, ':');
222	if (ops == NULL)
223	n = strlen (geom);
224	else
225	n = ops - geom;
226
227	if (n >= sizeof (str))
228	return false;
229
230	memcpy (str, geom, n);
231	str[n] = '\0';
232	rxvt_strtrim (str);
233
234	if (str[0])
235	{	165	{
236	/* 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
237	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	256	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
238	} /* done parsing geometry string */	257	} /* done parsing ops */
		258
		259	rxvt_free_strsplit (arr);
		260	}
		261
		262	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
239		263
240	if (!update)	264	if (!update)
241	{	265	{
242	if (!(geom_flags & XValue))	266	if (!(geom_flags & XValue))
243	x = y = defaultAlign;	267	x = y = defaultAlign;
…		…
248	w = h = defaultScale;	272	w = h = defaultScale;
249	else if (!(geom_flags & HeightValue))	273	else if (!(geom_flags & HeightValue))
250	h = w;	274	h = w;
251	else if (!(geom_flags & WidthValue))	275	else if (!(geom_flags & WidthValue))
252	w = h;	276	w = h;
253
254	geom_flags |= WidthValue|HeightValue|XValue|YValue;
255	}
256
257	if (ops)
258	{	277	}
259	char **arr = rxvt_strsplit (':', ops + 1);
260		278
261	for (int i = 0; arr[i]; i++)	279	clamp_it (x, -100, 200);
262	{	280	clamp_it (y, -100, 200);
263	if (!strcasecmp (arr[i], "tile"))
264	{
265	new_flags |= BG_TILE;
266	w = h = noScale;
267	geom_flags |= WidthValue|HeightValue;
268	}
269	else if (!strcasecmp (arr[i], "propscale"))
270	{
271	new_flags |= BG_PROP_SCALE;
272	}
273	else if (!strcasecmp (arr[i], "hscale"))
274	{
275	if (w == 0) w = windowScale;
276		281
277	h = noScale;	282	if (flags != new_flags
278	geom_flags |= WidthValue|HeightValue;	283	|| h_scale != w
279	}	284	|| v_scale != h
280	else if (!strcasecmp (arr[i], "vscale"))	285	|| h_align != x
281	{	286	|| v_align != y)
282	if (h == 0) h = windowScale;
283
284	w = noScale;
285	geom_flags |= WidthValue|HeightValue;
286	}
287	else if (!strcasecmp (arr[i], "scale"))
288	{
289	if (h == 0) h = windowScale;
290	if (w == 0) w = windowScale;
291
292	geom_flags |= WidthValue|HeightValue;
293	}
294	else if (!strcasecmp (arr[i], "auto"))
295	{
296	w = h = windowScale;
297	x = y = centerAlign;
298	geom_flags |= WidthValue|HeightValue|XValue|YValue;
299	}
300	else if (!strcasecmp (arr[i], "root"))
301	{
302	new_flags |= BG_TILE|BG_ROOT_ALIGN;
303	w = h = noScale;
304	geom_flags |= WidthValue|HeightValue;
305	}
306	} /* done parsing ops */
307
308	rxvt_free_strsplit (arr);
309	}	287	{
310
311	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
312	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
313	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
314	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
315
316	if (new_flags != bg_flags)
317	{
318	bg_flags = new_flags;	288	flags = new_flags;
		289	h_scale = w;
		290	v_scale = h;
		291	h_align = x;
		292	v_align = y;
319	changed = true;	293	changed = true;
320	}	294	}
321		295
		296	if (!(flags & IM_TILE)
		297	|| h_scale || v_scale
		298	|| (!(flags & IM_ROOT_ALIGN) && (h_align || v_align)))
		299	flags |= IM_IS_SIZE_SENSITIVE;
		300	else
		301	flags &= ~IM_IS_SIZE_SENSITIVE;
		302
322	return changed;	303	return changed;
323	}	304	}
324		305
325	void	306	void
326	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	307	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
327	{	308	{
		309	int image_width = image.width ();
		310	int image_height = image.height ();
328	int target_width = szHint.width;	311	int target_width = szHint.width;
329	int target_height = szHint.height;	312	int target_height = szHint.height;
		313	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		314	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
330		315
331	if (bg_flags & BG_PROP_SCALE)	316	w = h_scale * target_width / 100;
		317	h = v_scale * target_height / 100;
		318
		319	if (image.flags & IM_KEEP_ASPECT)
332	{	320	{
333	float scale = (float)target_width / image_width;	321	float scale = (float)w / image_width;
334	min_it (scale, (float)target_height / image_height);	322	min_it (scale, (float)h / image_height);
335	w = image_width * scale + 0.5;	323	w = image_width * scale + 0.5;
336	h = image_height * scale + 0.5;	324	h = image_height * scale + 0.5;
337	}	325	}
338	else
339	{
340	w = h_scale * target_width / 100;
341	h = v_scale * target_height / 100;
342	}
343		326
344	if (!w) w = image_width;	327	if (!w) w = image_width;
345	if (!h) h = image_height;	328	if (!h) h = image_height;
346		329
347	if (bg_flags & BG_ROOT_ALIGN)	330	if (image.flags & IM_ROOT_ALIGN)
348	{	331	{
349	x = -target_x;	332	x = -target_x;
350	y = -target_y;	333	y = -target_y;
351	}	334	}
352	else	335	else
353	{	336	{
354	x = make_align_position (h_align, target_width, w);	337	x = make_align_position (image.h_align, target_width, w);
355	y = make_align_position (v_align, target_height, h);	338	y = make_align_position (image.v_align, target_height, h);
356	}
357
358	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
359	if (!(bg_flags & BG_TILE)
360	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
361	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
362	|| w > target_width || h > target_height)
363	bg_flags |= BG_IS_SIZE_SENSITIVE;
364	}
365
366	# ifdef HAVE_AFTERIMAGE
367	bool
368	rxvt_term::render_image (unsigned long tr_flags)
369	{
370	init_asv ();
371
372	ASImage *background = NULL;
373	ARGB32 background_tint = TINT_LEAVE_SAME;
374
375	# ifdef ENABLE_TRANSPARENCY
376	if (tr_flags)
377	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
378
379	if (tr_flags & BG_NEEDS_TINT)
380	{	339	}
381	ShadingInfo as_shade;	340	}
382	as_shade.shading = shade;
383		341
384	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	342	# ifdef HAVE_PIXBUF
385	if (bg_flags & BG_TINT_SET)	343	bool
386	tint.get (c);	344	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
387	as_shade.tintColor.red = c.r;	345	int src_x, int src_y, int dst_x, int dst_y,
388	as_shade.tintColor.green = c.g;	346	unsigned int width, unsigned int height)
389	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;
390		356
391	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)))
392	}	391	{
393		392	XDestroyImage (ximage);
394	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)	393	return false;
395	{	394	}
396	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,	395
397	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,	396	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
398	100, ASIMAGE_QUALITY_DEFAULT);	397
399	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)
400	{	422	{
401	destroy_asimage (&background);	423	a = pixel[3];
402	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);
403	}	445	}
404	}
405	# endif
406		446
407	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);
408		473
409	int target_width = szHint.width;	474	int target_width = szHint.width;
410	int target_height = szHint.height;	475	int target_height = szHint.height;
411	int new_pmap_width = target_width;	476	int new_pmap_width = target_width;
412	int new_pmap_height = target_height;	477	int new_pmap_height = target_height;
…		…
414	int x = 0;	479	int x = 0;
415	int y = 0;	480	int y = 0;
416	int w = 0;	481	int w = 0;
417	int h = 0;	482	int h = 0;
418		483
419	if (original_asim)	484	get_image_geometry (image, w, h, x, y);
420	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
421		485
422	if (!original_asim
423	|| (!(bg_flags & BG_ROOT_ALIGN)
424	&& (x >= target_width
425	|| y >= target_height
426	|| (x + w <= 0)
427	|| (y + h <= 0))))
428	{
429	if (background)
430	{
431	new_pmap_width = background->width;
432	new_pmap_height = background->height;
433	result = background;
434
435	if (background_tint != TINT_LEAVE_SAME)
436	{
437	ASImage *tmp = tile_asimage (asv, background, 0, 0,
438	target_width, target_height, background_tint,
439	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
440	if (tmp)
441	result = tmp;
442	}
443	}
444	else
445	new_pmap_width = new_pmap_height = 0;
446	}
447	else
448	{
449	result = original_asim;
450
451	if ((w != original_asim->width)
452	|| (h != original_asim->height))
453	{
454	result = scale_asimage (asv, original_asim,
455	w, h,
456	background ? ASA_ASImage : ASA_XImage,
457	100, ASIMAGE_QUALITY_DEFAULT);
458	}
459
460	if (background == NULL)
461	{
462	if (bg_flags & BG_TILE)
463	{
464	/* if tiling - pixmap has to be sized exactly as the image,
465	but there is no need to make it bigger than the window! */
466	new_pmap_width = min (result->width, target_width);
467	new_pmap_height = min (result->height, target_height);
468
469	/* we also need to tile our image in both directions */
470	ASImage *tmp = tile_asimage (asv, result,
471	(int)result->width - x,
472	(int)result->height - y,
473	new_pmap_width,
474	new_pmap_height,
475	TINT_LEAVE_SAME, ASA_XImage,
476	100, ASIMAGE_QUALITY_DEFAULT);
477	if (tmp)
478	{
479	if (result != original_asim)
480	destroy_asimage (&result);
481
482	result = tmp;
483	}
484	}
485	}
486	else
487	{
488	/* if blending background and image - pixmap has to be sized same as target window */
489	ASImageLayer *layers = create_image_layers (2);
490
491	layers[0].im = background;
492	layers[0].clip_width = target_width;
493	layers[0].clip_height = target_height;
494	layers[0].tint = background_tint;
495	layers[1].im = result;
496
497	if (bg_flags & BG_TILE)
498	{
499	/* tile horizontally */
500	while (x > 0) x -= (int)result->width;
501	layers[1].dst_x = x;
502	layers[1].clip_width = result->width+target_width;
503	}
504	else
505	{
506	/* clip horizontally */
507	layers[1].dst_x = x;
508	layers[1].clip_width = result->width;
509	}
510
511	if (bg_flags & BG_TILE)
512	{
513	while (y > 0) y -= (int)result->height;
514	layers[1].dst_y = y;
515	layers[1].clip_height = result->height + target_height;
516	}
517	else
518	{
519	layers[1].dst_y = y;
520	layers[1].clip_height = result->height;
521	}
522
523	if (rs[Rs_blendtype])
524	{
525	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
526	if (layers[1].merge_scanlines == NULL)
527	layers[1].merge_scanlines = alphablend_scanlines;
528	}
529
530	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
531	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
532
533	if (tmp)
534	{
535	if (result != original_asim)
536	destroy_asimage (&result);
537
538	result = tmp;
539	}
540
541	free (layers);
542	}
543	}
544
545	bool ret = false;
546
547	if (result)
548	{
549	XGCValues gcv;
550	GC gc;
551
552	/* create Pixmap */
553	if (bg_pixmap == None
554	|| bg_pmap_width != new_pmap_width
555	|| bg_pmap_height != new_pmap_height)
556	{
557	if (bg_pixmap)
558	XFreePixmap (dpy, bg_pixmap);
559	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
560	bg_pmap_width = new_pmap_width;
561	bg_pmap_height = new_pmap_height;
562	}
563	/* fill with background color (if result's not completely overlapping it) */
564	gcv.foreground = pix_colors[Color_bg];
565	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
566
567	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
568	int dst_width = result->width, dst_height = result->height;
569	if (background == NULL)
570	{
571	if (!(bg_flags & BG_TILE))
572	{
573	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
574	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
575	}
576
577	if (dst_x > 0 || dst_y > 0
578	|| dst_x + dst_width < new_pmap_width
579	|| dst_y + dst_height < new_pmap_height)
580	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
581	}
582
583	/* put result on pixmap */
584	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
585	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
586
587	if (result != background && result != original_asim)
588	destroy_asimage (&result);
589
590	XFreeGC (dpy, gc);
591
592	ret = true;
593	}
594
595	if (background)
596	destroy_asimage (&background);
597
598	return ret;
599	}
600	# endif /* HAVE_AFTERIMAGE */
601
602	# ifdef HAVE_PIXBUF
603	bool
604	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
605	int src_x, int src_y, int dst_x, int dst_y,
606	unsigned int width, unsigned int height)
607	{
608	XImage *ximage;
609	char *data, *line;
610	int bytes_per_pixel;
611	int width_r, width_g, width_b;
612	int sh_r, sh_g, sh_b;
613	int rowstride;
614	int channels;
615	unsigned char *row;
616
617	if (visual->c_class != TrueColor)
618	return false;
619
620	if (depth == 24 || depth == 32)
621	bytes_per_pixel = 4;
622	else if (depth == 15 || depth == 16)
623	bytes_per_pixel = 2;
624	else
625	return false;
626
627	width_r = ecb_popcount32 (visual->red_mask);
628	width_g = ecb_popcount32 (visual->green_mask);
629	width_b = ecb_popcount32 (visual->blue_mask);
630
631	if (width_r > 8 || width_g > 8 || width_b > 8)
632	return false;
633
634	sh_r = ecb_ctz32 (visual->red_mask);
635	sh_g = ecb_ctz32 (visual->green_mask);
636	sh_b = ecb_ctz32 (visual->blue_mask);
637
638	if (width > INT_MAX / height / bytes_per_pixel)
639	return false;
640
641	data = (char *)malloc (width * height * bytes_per_pixel);
642	if (!data)
643	return false;
644
645	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
646	width, height, bytes_per_pixel * 8, 0);
647	if (!ximage)
648	{
649	free (data);
650	return false;
651	}
652
653	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
654
655	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
656	channels = gdk_pixbuf_get_n_channels (pixbuf);
657	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
658	line = data;
659
660	for (int y = 0; y < height; y++)
661	{
662	for (int x = 0; x < width; x++)
663	{
664	unsigned char *pixel = row + x * channels;
665	uint32_t value;
666
667	value = ((pixel[0] >> (8 - width_r)) << sh_r)
668	| ((pixel[1] >> (8 - width_g)) << sh_g)
669	| ((pixel[2] >> (8 - width_b)) << sh_b);
670
671	if (bytes_per_pixel == 4)
672	((uint32_t *)line)[x] = value;
673	else
674	((uint16_t *)line)[x] = value;
675	}
676
677	row += rowstride;
678	line += ximage->bytes_per_line;
679	}
680
681	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
682	XDestroyImage (ximage);
683	return true;
684	}
685
686	bool
687	rxvt_term::render_image (unsigned long tr_flags)
688	{
689	if (!pixbuf)
690	return false;
691
692	if (tr_flags
693	&& !(bg_flags & BG_HAS_RENDER))
694	return false;
695
696	GdkPixbuf *result;
697
698	int image_width = gdk_pixbuf_get_width (pixbuf);
699	int image_height = gdk_pixbuf_get_height (pixbuf);
700
701	int target_width = szHint.width;
702	int target_height = szHint.height;
703	int new_pmap_width = target_width;
704	int new_pmap_height = target_height;
705
706	int x = 0;
707	int y = 0;
708	int w = 0;
709	int h = 0;
710
711	get_image_geometry (image_width, image_height, w, h, x, y);
712
713	if (!(bg_flags & BG_ROOT_ALIGN)	486	if (!(image.flags & IM_ROOT_ALIGN)
714	&& (x >= target_width	487	&& (x >= target_width
715	|| y >= target_height	488	|| y >= target_height
716	|| (x + w <= 0)	489	|| x + w <= 0
717	|| (y + h <= 0)))	490	|| y + h <= 0))
718	return false;	491	return false;
719		492
720	result = pixbuf;	493	result = pixbuf;
721		494
722	if ((w != image_width)	495	if (w != image_width
723	|| (h != image_height))	496	|| h != image_height)
724	{	497	{
725	result = gdk_pixbuf_scale_simple (pixbuf,	498	result = gdk_pixbuf_scale_simple (pixbuf,
726	w, h,	499	w, h,
727	GDK_INTERP_BILINEAR);	500	GDK_INTERP_BILINEAR);
728	}	501	}
…		…
732		505
733	bool ret = false;	506	bool ret = false;
734		507
735	XGCValues gcv;	508	XGCValues gcv;
736	GC gc;	509	GC gc;
737	Pixmap root_pmap;	510	Pixmap tmp_pixmap;
738		511
739	image_width = gdk_pixbuf_get_width (result);	512	image_width = gdk_pixbuf_get_width (result);
740	image_height = gdk_pixbuf_get_height (result);	513	image_height = gdk_pixbuf_get_height (result);
741		514
742	if (tr_flags)	515	if (need_blend)
743	{	516	{
744	root_pmap = bg_pixmap;	517	tmp_pixmap = bg_pixmap;
745	bg_pixmap = None;	518	bg_pixmap = None;
746	}	519	}
747	else	520	else
748	{	521	{
749	if (bg_flags & BG_TILE)	522	if (image.flags & IM_TILE)
750	{	523	{
751	new_pmap_width = min (image_width, target_width);	524	new_pmap_width = min (image_width, target_width);
752	new_pmap_height = min (image_height, target_height);	525	new_pmap_height = min (image_height, target_height);
753	}	526	}
754	}	527	}
…		…
767	gcv.foreground = pix_colors[Color_bg];	540	gcv.foreground = pix_colors[Color_bg];
768	gc = XCreateGC (dpy, vt, GCForeground, &gcv);	541	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
769		542
770	if (gc)	543	if (gc)
771	{	544	{
772	if (bg_flags & BG_TILE)	545	if (image.flags & IM_TILE)
773	{	546	{
774	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);	547	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
775	pixbuf_to_pixmap (result, tile, gc,	548	pixbuf_to_pixmap (result, tile, gc,
776	0, 0,	549	0, 0,
777	0, 0,	550	0, 0,
…		…
805	dst_x, dst_y,	578	dst_x, dst_y,
806	dst_width, dst_height);	579	dst_width, dst_height);
807	}	580	}
808		581
809	#if XRENDER	582	#if XRENDER
810	if (tr_flags)	583	if (need_blend)
811	{	584	{
812	XRenderPictureAttributes pa;
813
814	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	585	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		586
815	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	587	Picture src = XRenderCreatePicture (dpy, tmp_pixmap, format, 0, 0);
816		588
817	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
818	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	589	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
819		590
820	pa.repeat = True;	591	Picture mask = create_xrender_mask (dpy, vt, False, False);
821	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
822	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
823	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
824	XFreePixmap (dpy, mask_pmap);
825		592
826	XRenderColor mask_c;	593	XRenderColor mask_c;
827		594
828	mask_c.alpha = 0x8000;	595	mask_c.alpha = 0x8000;
829	mask_c.red = 0;	596	mask_c.red =
830	mask_c.green = 0;	597	mask_c.green =
831	mask_c.blue = 0;	598	mask_c.blue = 0;
832	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);	599	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		600
833	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);
834		602
835	XRenderFreePicture (dpy, src);	603	XRenderFreePicture (dpy, src);
836	XRenderFreePicture (dpy, dst);	604	XRenderFreePicture (dpy, dst);
837	XRenderFreePicture (dpy, mask);	605	XRenderFreePicture (dpy, mask);
…		…
844	}	612	}
845		613
846	if (result != pixbuf)	614	if (result != pixbuf)
847	g_object_unref (result);	615	g_object_unref (result);
848		616
849	if (tr_flags)	617	if (need_blend)
850	XFreePixmap (dpy, root_pmap);	618	XFreePixmap (dpy, tmp_pixmap);
851		619
852	return ret;	620	return ret;
853	}	621	}
854	# endif /* HAVE_PIXBUF */	622	# endif /* HAVE_PIXBUF */
855		623
856	bool	624	bool
857	rxvt_term::bg_set_file (const char *file)	625	rxvt_image::set_file (const char *file)
858	{	626	{
859	if (!file || !*file)	627	if (!file || !*file)
860	return false;	628	return false;
861		629
		630	bool ret = false;
862	if (const char *p = strchr (file, ';'))	631	const char *p = strchr (file, ';');
		632
		633	if (p)
863	{	634	{
864	size_t len = p - file;	635	size_t len = p - file;
865	char *f = rxvt_temp_buf<char> (len + 1);	636	char *f = rxvt_temp_buf<char> (len + 1);
866	memcpy (f, file, len);	637	memcpy (f, file, len);
867	f[len] = '\0';	638	f[len] = '\0';
868	file = f;	639	file = f;
869	}	640	}
870		641
871	# ifdef HAVE_AFTERIMAGE
872	if (!asimman)
873	asimman = create_generic_imageman (rs[Rs_path]);
874	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
875	if (image)
876	{
877	if (original_asim)
878	safe_asimage_destroy (original_asim);
879	original_asim = image;
880	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
881	return true;
882	}
883	# endif
884
885	# ifdef HAVE_PIXBUF	642	# ifdef HAVE_PIXBUF
886	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	643	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
887	if (image)	644	if (image)
888	{	645	{
889	if (pixbuf)	646	if (pixbuf)
890	g_object_unref (pixbuf);	647	g_object_unref (pixbuf);
891	pixbuf = image;	648	pixbuf = image;
892	bg_flags |= BG_IS_FROM_FILE;
893	return true;	649	ret = true;
894	}	650	}
895	# endif	651	# endif
896		652
		653	if (ret)
		654	{
		655	flags = IM_IS_SET | IM_IS_SIZE_SENSITIVE;
		656	h_scale = v_scale = defaultScale;
		657	h_align = v_align = defaultAlign;
		658
		659	if (p)
		660	set_geometry (p + 1);
		661	}
		662
897	return false;	663	return ret;
898	}	664	}
899		665
900	# endif /* BG_IMAGE_FROM_FILE */	666	# endif /* BG_IMAGE_FROM_FILE */
901		667
902	# ifdef ENABLE_TRANSPARENCY	668	# ifdef ENABLE_TRANSPARENCY
903	bool
904	rxvt_term::bg_set_transparent ()
905	{
906	if (!(bg_flags & BG_IS_TRANSPARENT))
907	{
908	bg_flags |= BG_IS_TRANSPARENT;
909	return true;
910	}
911
912	return false;
913	}
914
915	bool	669	bool
916	rxvt_term::bg_set_blur (const char *geom)	670	rxvt_term::bg_set_blur (const char *geom)
917	{	671	{
918	bool changed = false;	672	bool changed = false;
919	unsigned int hr, vr;	673	unsigned int hr, vr;
…		…
938	{	692	{
939	changed = true;	693	changed = true;
940	v_blurRadius = vr;	694	v_blurRadius = vr;
941	}	695	}
942		696
943	if (v_blurRadius == 0 && h_blurRadius == 0)
944	bg_flags &= ~BG_NEEDS_BLUR;
945	else
946	bg_flags |= BG_NEEDS_BLUR;
947
948	return changed;	697	return changed;
949	}	698	}
950		699
951	void	700	bool
952	rxvt_term::set_tint_shade_flags ()	701	rxvt_term::bg_set_tint (rxvt_color &new_tint)
953	{	702	{
954	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	703	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
955	bool has_shade = shade != 100;	704	{
956		705	tint = new_tint;
957	bg_flags &= ~BG_TINT_FLAGS;	706	bg_flags |= BG_TINT_SET;
958		707
959	if (bg_flags & BG_TINT_SET)	708	rgba c;
960	{
961	tint.get (c);	709	tint.get (c);
962	if (!has_shade
963	&& (c.r <= 0x00ff || c.r >= 0xff00)	710	if ((c.r <= 0x00ff || c.r >= 0xff00)
964	&& (c.g <= 0x00ff || c.g >= 0xff00)	711	&& (c.g <= 0x00ff || c.g >= 0xff00)
965	&& (c.b <= 0x00ff || c.b >= 0xff00))	712	&& (c.b <= 0x00ff || c.b >= 0xff00))
966	bg_flags |= BG_TINT_BITAND;	713	bg_flags |= BG_TINT_BITAND;
967	}	714	else
968
969	if (has_shade || (bg_flags & BG_TINT_SET))
970	bg_flags |= BG_NEEDS_TINT;
971	}
972
973	bool
974	rxvt_term::bg_set_tint (rxvt_color &new_tint)
975	{
976	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
977	{
978	tint = new_tint;
979	bg_flags |= BG_TINT_SET;	715	bg_flags &= ~BG_TINT_BITAND;
980	set_tint_shade_flags ();	716
981	return true;	717	return true;
982	}	718	}
983		719
984	return false;	720	return false;
985	}	721	}
986		722
987	bool	723	bool
988	rxvt_term::bg_set_shade (const char *shade_str)	724	rxvt_term::bg_set_shade (const char *shade_str)
989	{	725	{
990	int new_shade = (shade_str) ? atoi (shade_str) : 100;	726	int new_shade = atoi (shade_str);
991		727
992	clamp_it (new_shade, -100, 200);	728	clamp_it (new_shade, -100, 200);
993	if (new_shade < 0)	729	if (new_shade < 0)
994	new_shade = 200 - (100 + new_shade);	730	new_shade = 200 - (100 + new_shade);
995		731
996	if (new_shade != shade)	732	if (new_shade != shade)
997	{	733	{
998	shade = new_shade;	734	shade = new_shade;
999	set_tint_shade_flags ();
1000	return true;	735	return true;
1001	}	736	}
1002		737
1003	return false;	738	return false;
1004	}	739	}
…		…
1025	params[i+2] = XDoubleToFixed (kernel[i] / sum);	760	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1026	}	761	}
1027	#endif	762	#endif
1028		763
1029	bool	764	bool
1030	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	765	rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
1031	{	766	{
1032	bool ret = false;	767	bool ret = false;
1033	#if XRENDER	768	#if XRENDER
		769	if (!(bg_flags & BG_HAS_RENDER_CONV))
		770	return false;
		771
1034	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;	772	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1035	double *kernel = (double *)malloc (size * sizeof (double));	773	double *kernel = (double *)malloc (size * sizeof (double));
1036	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));	774	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1037		775
1038	XRenderPictureAttributes pa;	776	XRenderPictureAttributes pa;
1039	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	777	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1040		778
		779	pa.repeat = RepeatPad;
1041	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	780	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		781	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
1042	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	782	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		783	XFreePixmap (dpy, tmp);
1043		784
1044	if (kernel && params)	785	if (kernel && params)
1045	{	786	{
1046	if (h_blurRadius)
1047	{
1048	size = h_blurRadius * 2 + 1;	787	size = h_blurRadius * 2 + 1;
1049	get_gaussian_kernel (h_blurRadius, size, kernel, params);	788	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1050		789
1051	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	790	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1052	XRenderComposite (dpy,	791	XRenderComposite (dpy,
1053	PictOpSrc,	792	PictOpSrc,
1054	src,	793	src,
1055	None,	794	None,
1056	dst,	795	dst,
1057	0, 0,	796	0, 0,
1058	0, 0,	797	0, 0,
1059	0, 0,	798	0, 0,
1060	width, height);	799	width, height);
1061	}
1062		800
1063	if (v_blurRadius)	801	::swap (src, dst);
1064	{	802
1065	size = v_blurRadius * 2 + 1;	803	size = v_blurRadius * 2 + 1;
1066	get_gaussian_kernel (v_blurRadius, size, kernel, params);	804	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1067	::swap (params[0], params[1]);	805	::swap (params[0], params[1]);
1068		806
1069	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	807	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1070	XRenderComposite (dpy,	808	XRenderComposite (dpy,
1071	PictOpSrc,	809	PictOpSrc,
1072	src,	810	src,
1073	None,	811	None,
1074	dst,	812	dst,
1075	0, 0,	813	0, 0,
1076	0, 0,	814	0, 0,
1077	0, 0,	815	0, 0,
1078	width, height);	816	width, height);
1079	}
1080		817
1081	ret = true;	818	ret = true;
1082	}	819	}
1083		820
1084	free (kernel);	821	free (kernel);
…		…
1088	#endif	825	#endif
1089	return ret;	826	return ret;
1090	}	827	}
1091		828
1092	bool	829	bool
1093	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	830	rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
1094	{	831	{
1095	bool ret = false;	832	bool ret = false;
1096		833
1097	if (bg_flags & BG_TINT_BITAND)	834	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
1098	{	835	{
1099	XGCValues gcv;	836	XGCValues gcv;
1100	GC gc;	837	GC gc;
1101		838
1102	/* In this case we can tint image server-side getting significant	839	/* In this case we can tint image server-side getting significant
…		…
1111	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);	848	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1112	ret = true;	849	ret = true;
1113	XFreeGC (dpy, gc);	850	XFreeGC (dpy, gc);
1114	}	851	}
1115	}	852	}
1116	else
1117	{
1118	# if XRENDER	853	# if XRENDER
		854	else if (bg_flags & BG_HAS_RENDER)
		855	{
1119	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	856	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1120		857
1121	if (bg_flags & BG_TINT_SET)	858	if (bg_flags & BG_TINT_SET)
1122	tint.get (c);	859	tint.get (c);
1123		860
…		…
1132	c.r = c.r * (200 - shade) / 100;	869	c.r = c.r * (200 - shade) / 100;
1133	c.g = c.g * (200 - shade) / 100;	870	c.g = c.g * (200 - shade) / 100;
1134	c.b = c.b * (200 - shade) / 100;	871	c.b = c.b * (200 - shade) / 100;
1135	}	872	}
1136		873
1137	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1138	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	874	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1139	XRenderPictureAttributes pa;
1140		875
1141	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	876	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1142		877
1143	pa.repeat = True;	878	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1144		879
1145	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);	880	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1146	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1147	XFreePixmap (dpy, overlay_pmap);
1148
1149	pa.component_alpha = True;
1150	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1151	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1152	XFreePixmap (dpy, mask_pmap);
1153		881
1154	XRenderColor mask_c;	882	XRenderColor mask_c;
1155		883
1156	mask_c.alpha = 0xffff;	884	mask_c.alpha = 0xffff;
1157	mask_c.red =	885	mask_c.red =
…		…
1162	mask_c.alpha = 0;	890	mask_c.alpha = 0;
1163	mask_c.red = 0xffff - c.r;	891	mask_c.red = 0xffff - c.r;
1164	mask_c.green = 0xffff - c.g;	892	mask_c.green = 0xffff - c.g;
1165	mask_c.blue = 0xffff - c.b;	893	mask_c.blue = 0xffff - c.b;
1166	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);	894	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		895
1167	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);	896	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1168		897
1169	if (shade > 100)	898	if (shade > 100)
1170	{	899	{
1171	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1172	mask_c.alpha = 0;	900	mask_c.alpha = 0;
		901	mask_c.red =
		902	mask_c.green =
		903	mask_c.blue = 0xffff * (shade - 100) / 100;
1173	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);	904	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1174		905
1175	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);	906	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1176	}	907	}
1177		908
1178	ret = true;	909	ret = true;
1179		910
1180	XRenderFreePicture (dpy, mask_pic);	911	XRenderFreePicture (dpy, mask_pic);
1181	XRenderFreePicture (dpy, overlay_pic);	912	XRenderFreePicture (dpy, overlay_pic);
1182	XRenderFreePicture (dpy, back_pic);	913	XRenderFreePicture (dpy, back_pic);
		914	}
1183	# endif	915	# endif
1184	}
1185		916
1186	return ret;	917	return ret;
1187	}	918	}
1188		919
1189	/*	920	/*
1190	* Builds a pixmap of the same size as the terminal window that contains	921	* Builds a pixmap of the same size as the terminal window that contains
1191	* the tiled portion of the root pixmap that is supposed to be covered by	922	* the tiled portion of the root pixmap that is supposed to be covered by
1192	* our window.	923	* our window.
1193	*/	924	*/
1194	unsigned long	925	bool
1195	rxvt_term::make_transparency_pixmap ()	926	rxvt_term::make_transparency_pixmap ()
1196	{	927	{
1197	unsigned long result = 0;	928	bool ret = false;
1198		929
1199	/* root dimensions may change from call to call - but Display structure should	930	/* root dimensions may change from call to call - but Display structure should
1200	* be always up-to-date, so let's use it :	931	* be always up-to-date, so let's use it :
1201	*/	932	*/
1202	int screen = display->screen;	933	int screen = display->screen;
…		…
1240	#if XRENDER	971	#if XRENDER
1241	if (bg_flags & BG_HAS_RENDER)	972	if (bg_flags & BG_HAS_RENDER)
1242	{	973	{
1243	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);	974	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1244		975
1245	XRenderPictureAttributes pa;
1246
1247	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));	976	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1248	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);	977	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1249		978
1250	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	979	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1251	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	980	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1252		981
1253	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	982	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
1254		983
1255	XRenderFreePicture (dpy, src);	984	XRenderFreePicture (dpy, src);
1256	XRenderFreePicture (dpy, dst);	985	XRenderFreePicture (dpy, dst);
…		…
1273	bg_pmap_width = window_width;	1002	bg_pmap_width = window_width;
1274	bg_pmap_height = window_height;	1003	bg_pmap_height = window_height;
1275	}	1004	}
1276		1005
1277	/* straightforward pixmap copy */	1006	/* straightforward pixmap copy */
1278	while (sx < 0) sx += root_width;	1007	while (sx < 0) sx += root_pmap_width;
1279	while (sy < 0) sy += root_height;	1008	while (sy < 0) sy += root_pmap_height;
1280		1009
1281	gcv.tile = recoded_root_pmap;	1010	gcv.tile = recoded_root_pmap;
1282	gcv.fill_style = FillTiled;	1011	gcv.fill_style = FillTiled;
1283	gcv.ts_x_origin = -sx;	1012	gcv.ts_x_origin = -sx;
1284	gcv.ts_y_origin = -sy;	1013	gcv.ts_y_origin = -sy;
1285	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	1014	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1286		1015
1287	if (gc)	1016	if (gc)
1288	{	1017	{
1289	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);	1018	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1290	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);	1019	ret = true;
		1020	bool need_blur = h_blurRadius && v_blurRadius;
		1021	bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
		1022
		1023	if (!(bg_flags & BG_CLIENT_RENDER))
		1024	{
		1025	if (need_blur)
		1026	{
		1027	if (blur_pixmap (bg_pixmap, window_width, window_height))
		1028	need_blur = false;
		1029	}
		1030	if (need_tint)
		1031	{
		1032	if (tint_pixmap (bg_pixmap, window_width, window_height))
		1033	need_tint = false;
		1034	}
		1035	if (need_tint)
		1036	{
		1037	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1038	if (ximage)
		1039	{
		1040	/* our own client-side tinting */
		1041	tint_ximage (ximage);
		1042
		1043	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1044	XDestroyImage (ximage);
		1045	}
		1046	}
		1047	} /* server side rendering completed */
		1048
1291	XFreeGC (dpy, gc);	1049	XFreeGC (dpy, gc);
1292
1293	if (!(bg_flags & BG_CLIENT_RENDER))
1294	{
1295	if ((bg_flags & BG_NEEDS_BLUR)
1296	&& (bg_flags & BG_HAS_RENDER_CONV))
1297	{
1298	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1299	result &= ~BG_NEEDS_BLUR;
1300	}
1301	if ((bg_flags & BG_NEEDS_TINT)
1302	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1303	{
1304	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1305	result &= ~BG_NEEDS_TINT;
1306	}
1307	} /* server side rendering completed */
1308	}	1050	}
1309		1051
1310	if (recoded_root_pmap != root_pixmap)	1052	if (recoded_root_pmap != root_pixmap)
1311	XFreePixmap (dpy, recoded_root_pmap);	1053	XFreePixmap (dpy, recoded_root_pmap);
1312		1054
1313	return result;	1055	return ret;
1314	}	1056	}
1315		1057
1316	void	1058	void
1317	rxvt_term::bg_set_root_pixmap ()	1059	rxvt_term::bg_set_root_pixmap ()
1318	{	1060	{
…		…
1322		1064
1323	root_pixmap = new_root_pixmap;	1065	root_pixmap = new_root_pixmap;
1324	}	1066	}
1325	# endif /* ENABLE_TRANSPARENCY */	1067	# endif /* ENABLE_TRANSPARENCY */
1326		1068
1327	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1328	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1329	# endif
1330
1331	bool	1069	bool
1332	rxvt_term::bg_render ()	1070	rxvt_term::bg_render ()
1333	{	1071	{
1334	unsigned long tr_flags = 0;
1335
1336	bg_invalidate ();	1072	bg_invalidate ();
1337	# ifdef ENABLE_TRANSPARENCY	1073	# ifdef ENABLE_TRANSPARENCY
1338	if (bg_flags & BG_IS_TRANSPARENT)	1074	if (bg_flags & BG_IS_TRANSPARENT)
1339	{	1075	{
1340	/* we need to re-generate transparency pixmap in that case ! */	1076	/* we need to re-generate transparency pixmap in that case ! */
1341	tr_flags = make_transparency_pixmap ();	1077	if (make_transparency_pixmap ())
1342	if (tr_flags == 0)
1343	return false;
1344	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1345	bg_flags |= BG_IS_VALID;	1078	bg_flags |= BG_IS_VALID;
1346	}	1079	}
1347	# endif	1080	# endif
1348		1081
1349	# ifdef BG_IMAGE_FROM_FILE	1082	# ifdef BG_IMAGE_FROM_FILE
1350	if ((bg_flags & BG_IS_FROM_FILE)	1083	if (bg_image.flags & IM_IS_SET)
1351	|| (tr_flags & BG_EFFECTS_FLAGS))
1352	{	1084	{
1353	if (render_image (tr_flags))	1085	if (render_image (bg_image))
1354	bg_flags |= BG_IS_VALID;	1086	bg_flags |= BG_IS_VALID;
1355	}
1356	# endif
1357
1358	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1359	XImage *result = NULL;
1360
1361	if (tr_flags && !(bg_flags & BG_IS_VALID))
1362	{
1363	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1364	}
1365
1366	if (result)
1367	{
1368	/* our own client-side tinting */
1369	if (tr_flags & BG_NEEDS_TINT)
1370	{
1371	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1372	if (bg_flags & BG_TINT_SET)
1373	tint.get (c);
1374	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1375	}
1376
1377	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1378
1379	if (gc)
1380	{
1381	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1382
1383	XFreeGC (dpy, gc);
1384	bg_flags |= BG_IS_VALID;
1385	}
1386
1387	XDestroyImage (result);
1388	}	1087	}
1389	# endif	1088	# endif
1390		1089
1391	if (!(bg_flags & BG_IS_VALID))	1090	if (!(bg_flags & BG_IS_VALID))
1392	{	1091	{
…		…
1429	#endif	1128	#endif
1430	}	1129	}
1431		1130
1432	#endif /* HAVE_BG_PIXMAP */	1131	#endif /* HAVE_BG_PIXMAP */
1433		1132
1434	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	1133	#ifdef ENABLE_TRANSPARENCY
1435	/* taken from aterm-0.4.2 */	1134	/* based on code from aterm-0.4.2 */
1436		1135
1437	static void	1136	static inline void
1438	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)	1137	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1439	{	1138	{
		1139	for (int i = 0; i <= mask >> sh; i++)
		1140	{
		1141	uint32_t tmp;
		1142	tmp = i * high;
		1143	tmp += (mask >> sh) * low;
		1144	lookup[i] = (tmp / 0xffff) << sh;
		1145	}
		1146	}
		1147
		1148	void
		1149	rxvt_term::tint_ximage (XImage *ximage)
		1150	{
		1151	unsigned int size_r, size_g, size_b;
1440	int sh_r, sh_g, sh_b;	1152	int sh_r, sh_g, sh_b;
1441	uint32_t mask_r, mask_g, mask_b;	1153	uint32_t mask_r, mask_g, mask_b;
1442	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;	1154	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1443	rgba low;	1155	unsigned short low;
1444	rgba high;
1445	int i;
1446	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;	1156	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1447		1157
1448	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;	1158	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1449		1159
1450	/* for convenience */	1160	/* for convenience */
1451	mask_r = visual->red_mask;	1161	mask_r = visual->red_mask;
1452	mask_g = visual->green_mask;	1162	mask_g = visual->green_mask;
1453	mask_b = visual->blue_mask;	1163	mask_b = visual->blue_mask;
1454		1164
1455	/* boring lookup table pre-initialization */	1165	/* boring lookup table pre-initialization */
1456	switch (ximage->depth)	1166	sh_r = ecb_ctz32 (mask_r);
1457	{	1167	sh_g = ecb_ctz32 (mask_g);
1458	case 15:	1168	sh_b = ecb_ctz32 (mask_b);
1459	if ((mask_r != 0x7c00) ||	1169
1460	(mask_g != 0x03e0) ||	1170	size_r = mask_r >> sh_r;
1461	(mask_b != 0x001f))	1171	size_g = mask_g >> sh_g;
		1172	size_b = mask_b >> sh_b;
		1173
		1174	if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1462	return;	1175	return;
1463	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));	1176
		1177	lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1464	lookup_r = lookup;	1178	lookup_r = lookup;
1465	lookup_g = lookup+32;	1179	lookup_g = lookup + size_r;
1466	lookup_b = lookup+32+32;	1180	lookup_b = lookup + size_r + size_g;
1467	sh_r = 10;	1181
1468	sh_g = 5;	1182	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1469	sh_b = 0;	1183
1470	break;	1184	if (bg_flags & BG_TINT_SET)
1471	case 16:	1185	tint.get (c);
1472	if ((mask_r != 0xf800) ||
1473	(mask_g != 0x07e0) ||
1474	(mask_b != 0x001f))
1475	return;
1476	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1477	lookup_r = lookup;
1478	lookup_g = lookup+32;
1479	lookup_b = lookup+32+64;
1480	sh_r = 11;
1481	sh_g = 5;
1482	sh_b = 0;
1483	break;
1484	case 24:
1485	if ((mask_r != 0xff0000) ||
1486	(mask_g != 0x00ff00) ||
1487	(mask_b != 0x0000ff))
1488	return;
1489	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1490	lookup_r = lookup;
1491	lookup_g = lookup+256;
1492	lookup_b = lookup+256+256;
1493	sh_r = 16;
1494	sh_g = 8;
1495	sh_b = 0;
1496	break;
1497	case 32:
1498	if ((mask_r != 0xff0000) ||
1499	(mask_g != 0x00ff00) ||
1500	(mask_b != 0x0000ff))
1501	return;
1502	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1503	lookup_r = lookup;
1504	lookup_g = lookup+256;
1505	lookup_b = lookup+256+256;
1506	sh_r = 16;
1507	sh_g = 8;
1508	sh_b = 0;
1509	break;
1510	default:
1511	return; /* we do not support this color depth */
1512	}
1513		1186
1514	/* prepare limits for color transformation (each channel is handled separately) */	1187	/* prepare limits for color transformation (each channel is handled separately) */
1515	if (shade > 100)	1188	if (shade > 100)
1516	{	1189	{
1517	shade = 200 - shade;
1518
1519	high.r = c.r * shade / 100;
1520	high.g = c.g * shade / 100;
1521	high.b = c.b * shade / 100;
1522
1523	low.r = 65535 * (100 - shade) / 100;	1190	c.r = c.r * (200 - shade) / 100;
1524	low.g = 65535 * (100 - shade) / 100;	1191	c.g = c.g * (200 - shade) / 100;
1525	low.b = 65535 * (100 - shade) / 100;	1192	c.b = c.b * (200 - shade) / 100;
		1193
		1194	low = 0xffff * (shade - 100) / 100;
1526	}	1195	}
1527	else	1196	else
1528	{	1197	{
1529	high.r = c.r * shade / 100;	1198	c.r = c.r * shade / 100;
1530	high.g = c.g * shade / 100;	1199	c.g = c.g * shade / 100;
1531	high.b = c.b * shade / 100;	1200	c.b = c.b * shade / 100;
1532		1201
1533	low.r = low.g = low.b = 0;	1202	low = 0;
1534	}	1203	}
1535		1204
1536	/* fill our lookup tables */	1205	/* fill our lookup tables */
1537	for (i = 0; i <= mask_r>>sh_r; i++)	1206	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1538	{	1207	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1539	uint32_t tmp;	1208	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1540	tmp = i * high.r;
1541	tmp += (mask_r>>sh_r) * low.r;
1542	lookup_r[i] = (tmp/65535)<<sh_r;
1543	}
1544	for (i = 0; i <= mask_g>>sh_g; i++)
1545	{
1546	uint32_t tmp;
1547	tmp = i * high.g;
1548	tmp += (mask_g>>sh_g) * low.g;
1549	lookup_g[i] = (tmp/65535)<<sh_g;
1550	}
1551	for (i = 0; i <= mask_b>>sh_b; i++)
1552	{
1553	uint32_t tmp;
1554	tmp = i * high.b;
1555	tmp += (mask_b>>sh_b) * low.b;
1556	lookup_b[i] = (tmp/65535)<<sh_b;
1557	}
1558		1209
1559	/* apply table to input image (replacing colors by newly calculated ones) */	1210	/* apply table to input image (replacing colors by newly calculated ones) */
1560	if (ximage->bits_per_pixel == 32	1211	if (ximage->bits_per_pixel == 32
1561	&& (ximage->depth == 24 || ximage->depth == 32)
1562	&& ximage->byte_order == host_byte_order)	1212	&& ximage->byte_order == host_byte_order)
1563	{	1213	{
1564	uint32_t *p1, *pf, *p, *pl;	1214	char *line = ximage->data;
1565	p1 = (uint32_t *) ximage->data;
1566	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1567		1215
1568	while (p1 < pf)	1216	for (int y = 0; y < ximage->height; y++)
1569	{
1570	p = p1;
1571	pl = p1 + ximage->width;
1572	for (; p < pl; p++)
1573	{	1217	{
1574	*p = lookup_r[(*p & 0xff0000) >> 16] |	1218	uint32_t *p = (uint32_t *)line;
1575	lookup_g[(*p & 0x00ff00) >> 8] |	1219	for (int x = 0; x < ximage->width; x++)
1576	lookup_b[(*p & 0x0000ff)] |
1577	(*p & 0xff000000);
1578	}	1220	{
1579	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);	1221	*p = lookup_r[(*p & mask_r) >> sh_r] |
		1222	lookup_g[(*p & mask_g) >> sh_g] |
		1223	lookup_b[(*p & mask_b) >> sh_b];
		1224	p++;
		1225	}
		1226	line += ximage->bytes_per_line;
1580	}	1227	}
1581	}	1228	}
1582	else	1229	else
1583	{	1230	{
1584	for (int y = 0; y < ximage->height; y++)	1231	for (int y = 0; y < ximage->height; y++)
…		…
1592	}	1239	}
1593	}	1240	}
1594		1241
1595	free (lookup);	1242	free (lookup);
1596	}	1243	}
1597	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1244	#endif /* ENABLE_TRANSPARENCY */

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