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/* WMix 3.0 -- a mixer using the OSS mixer API.
* Copyright (C) 2000, 2001
* Daniel Richard G. <skunk@mit.edu>,
* timecop <timecop@japan.co.jp>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include "include/common.h"
#include "include/misc.h"
typedef struct {
int enable;
int x;
int y;
int width;
int height;
} MRegion;
MRegion mr[16];
extern Config config;
/* Converts separate left and right channel volumes (each in [0, 1]) to
* volume and balance values. (Volume is in [0, 1], balance is in [-1, 1])
*/
void lr_to_vb(float left, float right, float *volume, float *balance)
{
assert((left >= 0.0) && (right >= 0.0));
*volume = MAX(left, right);
if (left > right)
*balance = -1.0 + right / left;
else if (right > left)
*balance = 1.0 - left / right;
else
*balance = 0.0;
}
/* Performs the reverse calculation of lr_to_vb()
*/
void vb_to_lr(float volume, float balance, float *left, float *right)
{
/* *left = volume; *right = volume; return; // XXX */
*left = volume * (1.0 - MAX(0.0, balance));
*right = volume * (1.0 + MIN(0.0, balance));
}
double get_current_time(void)
{
struct timeval tv;
double t;
gettimeofday(&tv, NULL);
t = (double)tv.tv_sec;
t += (double)tv.tv_usec / 1.0e6;
return t;
}
void add_region(int index, int x, int y, int width, int height)
{
mr[index].enable = 1;
mr[index].x = x;
mr[index].y = y;
mr[index].width = width;
mr[index].height = height;
}
int check_region(int x, int y)
{
register int i;
bool found = false;
for (i = 0; i < 16 && !found; i++) {
if (mr[i].enable && x >= mr[i].x &&
x <= mr[i].x + mr[i].width &&
y >= mr[i].y && y <= mr[i].y + mr[i].height)
found = true;
}
if (!found)
return -1;
return (i - 1);
}
void config_read(void)
{
FILE *fp;
char buf[512];
char *ptr;
if (config.file == NULL)
return;
fp = fopen(config.file, "r");
if (!fp)
return;
while (fgets(buf, 512, fp)) {
if ((ptr = strstr(buf, "mousewheel="))) {
ptr += 11;
config.mousewheel = atoi(ptr);
}
if ((ptr = strstr(buf, "scrolltext="))) {
ptr += 11;
config.scrolltext = atoi(ptr);
}
if ((ptr = strstr(buf, "osd="))) {
ptr += 4;
config.osd = atoi(ptr);
}
if ((ptr = strstr(buf, "osdcolor="))) {
char *end;
ptr += 9;
end = strchr(ptr, '\n');
ptr[end - ptr] = '\0';
if (config.osd_color)
free(config.osd_color);
config.osd_color = strdup(ptr);
}
if ((ptr = strstr(buf, "wheelstep="))) {
ptr += 10;
/* detect old style config */
if (atoi(ptr) > 1)
config.scrollstep = (float)atoi(ptr) / 100.0;
else
config.scrollstep = atof(ptr);
}
if ((ptr = strstr(buf, "wheelbtn1="))) {
ptr += 10;
config.wheel_button_up = atoi(ptr);
}
if ((ptr = strstr(buf, "wheelbtn2="))) {
ptr += 10;
config.wheel_button_down = atoi(ptr);
}
}
fclose(fp);
}
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