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/*
* BB: The portable demo
*
* (C) 1997 by AA-group (e-mail: aa@horac.ta.jcu.cz)
*
* 3rd August 1997
* version: 1.2 [final3]
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public Licences as by published
* by the Free Software Foundation; either version 2; or (at your option)
* any later version
*
* This program is distributed in the hope that it will entertaining,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILTY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Publis 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.
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <sys/types.h>
#include <ctype.h>
#include <sys/time.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include "bb.h"
static int soundin;
static int soundout;
static int freq = 22050, stereo = 1, _16bit = 1;
static int freqs[14] =
{
5512, 6615, 8000, 9600, 11025, 16000, 18900,
22050, 27428, 32000, 33075, 37800, 44100, 48000
};
int bbsound = 0;
int soundcounter;
static int isplaying=0;
void stop()
{
if (bbsound) {
write(soundout, "T", 1);
isplaying=0;
}
}
int load_song(char *name)
{
finish_stuff=0;
if (bbsound) {
stop();
isplaying=1;
bbsound=1;
switch(name[2]) {
case '.':
write(soundout, "0", 1);
break;
case '2':
write(soundout, "1", 1);
break;
case '3':
write(soundout, "2", 1);
}
}
return 0;
}
static int start_sound(void)
{
pid_t pid;
int mypipe[2];
int mypipe2[2];
/* Create the pipe. */
if (pipe(mypipe) || pipe(mypipe2)) {
fprintf(stderr, "Pipe failed.\n");
return EXIT_FAILURE;
}
pid = fork();
if (pid == (pid_t) 0) { /* This is the child process. */
char str[256];
sprintf(str, "bb_snd_server %i %i %i bb.s3m bb2.s3m bb3.s3m", freq, stereo, _16bit);
close(mypipe[0]);
close(mypipe2[1]);
close(1);
dup(mypipe[1]);
close(0);
dup(mypipe2[0]);
fflush(stdout);
if(system(str)) {
sprintf(str, "./bb_snd_server %i %i %i bb.s3m bb2.s3m bb3.s3m", freq, stereo, _16bit);
system(str);
}
write(mypipe[1], "!", 1);
exit(0);
}
else if (pid > (pid_t) 0) { /* This is the parent process. */
close(mypipe[1]);
close(mypipe2[0]);
soundin = mypipe[0];
soundout = mypipe2[1];
bbsound = 1;
return EXIT_SUCCESS;
}
else { /* The fork failed. */
fprintf(stderr, "Fork failed.\n");
return EXIT_FAILURE;
}
}
void play()
{
if (bbsound) {
write(soundout, "S", 1);
}
}
void wait_sound()
{
char ch;
read(soundin, &ch, 1);
if (ch == '!') {
bbsound = 0;
}
}
void update_sound()
{
fd_set readfds;
char ch;
struct timeval tv;
if (!bbsound)
return;
tv.tv_sec = 0;
tv.tv_usec = 0;
FD_ZERO(&readfds);
FD_SET(soundin, &readfds);
while (select(soundin + 1, &readfds, NULL, NULL, &tv)) {
soundcounter++;
read(soundin, &ch, 1);
if (ch == '!') {
bbsound = 0;
break;
}
}
}
int main(int argc, char *argv[])
{
int retval;
int p=0;
char s[255];
bbinit(argc,argv);
aa_puts(context, 0, p++, AA_SPECIAL, "Music?[Y/n]");
aa_flush(context);
if (tolower(aa_getkey(context, 1)) != 'n') {
aa_puts(context, 0, p, AA_SPECIAL, "Sample rate");
do {
sprintf(s, "%i", freq);
aa_edit(context, 13, p++, 5, s, 6);
} while (sscanf(s, "%i", &freq) == 0 || freq < 8000 || freq > 100000);
{int i,minv=freqs[0];
for(i=0;i<14;i++)
if(abs(freq-minv)>abs(freq-freqs[i])) minv=freqs[i];
freq=minv;
}
aa_puts(context, 0, p++, AA_SPECIAL, "Stereo?[Y/n]");
aa_flush(context);
if (tolower(aa_getkey(context, 1)) == 'n')
stereo = 0;
aa_puts(context, 0, p++, AA_SPECIAL, "16 bit?[Y/n]");
aa_flush(context);
if (tolower(aa_getkey(context, 1)) == 'n')
_16bit = 0;
start_sound();
wait_sound();
}
retval = bb();
if (bbsound) {
write(soundout, "!", 1);
close(soundout);
close(soundin);
}
return retval;
}
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