1 /* WMix 3.0 -- a mixer using the OSS mixer API.
2 * Copyright (C) 2000, 2001
3 * Daniel Richard G. <skunk@mit.edu>,
4 * timecop <timecop@japan.co.jp>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
31 #include "include/common.h"
32 #include "include/misc.h"
45 /* Converts separate left and right channel volumes (each in [0, 1]) to
46 * volume and balance values. (Volume is in [0, 1], balance is in [-1, 1])
48 void lr_to_vb(float left
, float right
, float *volume
, float *balance
)
50 assert((left
>= 0.0) && (right
>= 0.0));
52 *volume
= MAX(left
, right
);
55 *balance
= -1.0 + right
/ left
;
56 else if (right
> left
)
57 *balance
= 1.0 - left
/ right
;
62 /* Performs the reverse calculation of lr_to_vb()
64 void vb_to_lr(float volume
, float balance
, float *left
, float *right
)
66 /* *left = volume; *right = volume; return; // XXX */
68 *left
= volume
* (1.0 - MAX(0.0, balance
));
69 *right
= volume
* (1.0 + MIN(0.0, balance
));
72 double get_current_time(void)
77 gettimeofday(&tv
, NULL
);
79 t
= (double)tv
.tv_sec
;
80 t
+= (double)tv
.tv_usec
/ 1.0e6
;
85 void add_region(int index
, int x
, int y
, int width
, int height
)
90 mr
[index
].width
= width
;
91 mr
[index
].height
= height
;
94 int check_region(int x
, int y
)
99 for (i
= 0; i
< 16 && !found
; i
++) {
100 if (mr
[i
].enable
&& x
>= mr
[i
].x
&&
101 x
<= mr
[i
].x
+ mr
[i
].width
&&
102 y
>= mr
[i
].y
&& y
<= mr
[i
].y
+ mr
[i
].height
)
110 void config_read(void)
116 if (config
.file
== NULL
)
119 fp
= fopen(config
.file
, "r");
123 while (fgets(buf
, 512, fp
)) {
124 if ((ptr
= strstr(buf
, "mousewheel="))) {
126 config
.mousewheel
= atoi(ptr
);
128 if ((ptr
= strstr(buf
, "scrolltext="))) {
130 config
.scrolltext
= atoi(ptr
);
132 if ((ptr
= strstr(buf
, "osd="))) {
134 config
.osd
= atoi(ptr
);
136 if ((ptr
= strstr(buf
, "osdcolor="))) {
139 end
= strchr(ptr
, '\n');
140 ptr
[end
- ptr
] = '\0';
141 if (config
.osd_color
)
142 free(config
.osd_color
);
143 config
.osd_color
= strdup(ptr
);
145 if ((ptr
= strstr(buf
, "wheelstep="))) {
147 /* detect old style config */
149 config
.scrollstep
= (float)atoi(ptr
) / 100.0;
151 config
.scrollstep
= atof(ptr
);
153 if ((ptr
= strstr(buf
, "wheelbtn1="))) {
155 config
.wheel_button_up
= atoi(ptr
);
157 if ((ptr
= strstr(buf
, "wheelbtn2="))) {
159 config
.wheel_button_down
= atoi(ptr
);