2 * libwmfun - WindowMaker texture function library
3 * Copyright (C) 1999 Tobias Gloth
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
25 * Revision 1.1 2000/12/03 18:58:41 id
26 * initiate plugins branch
28 * Revision 1.1.1.1 1999/02/21 17:16:47 gloth
39 static Display
*dpy
= 0;
42 void initWindowMaker(Display
* d
, Colormap c
)
51 void error(const char *format
, ...)
54 va_start(args
, format
);
55 vfprintf(stderr
, format
, args
);
59 int parse_color(const char *string
, int *result
)
63 if (!XParseColor(dpy
, cmap
, string
, &color
)) {
66 result
[0] = color
.red
>> 8;
67 result
[1] = color
.green
>> 8;
68 result
[2] = color
.blue
>> 8;
73 int parse_xcolor(const char *string
, XColor
* xcolor
)
75 if (!XParseColor(dpy
, cmap
, string
, xcolor
)) {
78 if (!XAllocColor(dpy
, cmap
, xcolor
)) {
85 void interpolate_color(int *t
, const int *s0
, const int *s1
, int mix
)
87 t
[0] = (mix
* s0
[0] + (255 - mix
) * s1
[0]) >> 8;
88 t
[1] = (mix
* s0
[1] + (255 - mix
) * s1
[1]) >> 8;
89 t
[2] = (mix
* s0
[2] + (255 - mix
) * s1
[2]) >> 8;
92 int random_int(int range
)
94 return rand() / (RAND_MAX
/ range
+ 1);
97 double random_double(double range
)
99 return ((double)rand()) / (((double)RAND_MAX
) / range
);
102 int start_image(const char *name
, int argc
, int argc_min
, int argc_max
, int width
, int height
, RImage
** image
)
106 error("%s: library not initialized\n", name
);
110 if ((argc
< argc_min
) || (argc
>= argc_max
)) {
111 error("%s: invalid number of parameters: \n", name
, argc
);
115 *image
= RCreateImage(width
, height
, 0);
117 error("%s: can't create image\n", name
);