static void MIDAS_start(struct mpxplay_audioout_info_s *aui)
{
if(midashandle){
MIDASresumeStream(midashandle);
}else{
midashandle=MIDASplayStreamPolling(4,aui->freq_card,1000);
if(midashandle==NULL){
pds_textdisplay_printf("MIDAS error: ");
pds_textdisplay_printf(MIDASgetErrorMessage(MIDASgetLastError()));
MIDASclose();
exit(0);
}
MIDAS_setvol();
}
aui->card_infobits|=AUINFOS_CARDINFOBIT_PLAYING;
}
static int MIDAS_detect(struct mpxplay_audioout_info_s *aui)
{
unsigned int iscard,len;
char midascnffile[300];
pds_getpath_from_fullname(midascnffile,freeopts[OPT_PROGNAME]);
len=pds_strlen(midascnffile);
if(len && (midascnffile[len-1]!=PDS_DIRECTORY_SEPARATOR_CHAR))
len+=pds_strcpy(&midascnffile[len],PDS_DIRECTORY_SEPARATOR_STR);
pds_strcpy(&midascnffile[len],"mpxmidas.ini");
MIDASstartup();
MIDASsetOption(MIDAS_OPTION_MIXING_MODE,1);
if(aui->card_controlbits&AUINFOS_CARDCNTRLBIT_MIDASMANUALCFG){
iscard=MIDASconfig();
MIDASsaveConfig(midascnffile);
}else{
iscard=MIDASloadConfig(midascnffile);
if(!iscard)
iscard=MIDASdetectSoundCard();
}
iscard+=MIDASinit();
iscard+=MIDASopenChannels(2);
if(iscard==3){
midashandle=MIDASplayStreamPolling(4,aui->freq_card,1000);
if(midashandle){
MIDASpauseStream(midashandle);
iscard++;
}
}
if(iscard<4){
pds_textdisplay_printf("MIDAS error: ");
pds_textdisplay_printf(MIDASgetErrorMessage(MIDASgetLastError()));
MIDASclose();
return 0;
}
return 1;
}
static void soundPlay(struct Sound *s,char *filename,int fileofs,int filesize,int loop)
{
// read sound file header
int err;
fileHandle fh=0;
long fsize;
#define HEADSIZE 78
unsigned char buf[HEADSIZE];
memset(buf,0,HEADSIZE);
#ifdef EXTENDFILE
rfSuperStart=fileofs;
rfSuperSize=filesize;
#endif
s->loop=loop;
#define MCALL1(f) err=f;if(err) {reportErr(err); return;}
#define MCALL2(f) err=f;if(err) {reportErr(err); err=fileClose(fh); if(err) reportErr(err); return;}
MCALL1(fileOpen(filename,fileOpenRead,&fh));
MCALL2(fileGetSize(fh,&fsize));
MCALL2(fileRead(fh,buf,fsize<HEADSIZE?fsize:HEADSIZE));
MCALL1(fileClose(fh));
// analyze sound file header
// waw sample? starts with "RIFF" with fmt!=55h
if (buf[0]=='R' && buf[1]=='I' && buf[2]=='F' && buf[3]=='F' /*&& buf[8]=='W' && buf[9]=='A' && buf[10]=='V' && buf[11]=='E'*/ && buf[20]!=0x55)
{
extern int lastWAVfreq;
s->type=Sample;
s->datahandle=(int)MIDASloadWaveSample(filename,loop?MIDAS_LOOP_YES:MIDAS_LOOP_NO);
if(s->datahandle) s->playhandle=(int)MIDASplaySample((MIDASsample)s->datahandle,MIDAS_CHANNEL_AUTO,0/*priority*/,lastWAVfreq,64,MIDAS_PAN_MIDDLE);
}
#ifdef EXTENDFILE
// iff sample with 0x16 characters long name? (FT2 makes them)
// it isn't ment as IFF support, just quick 99% working hack
else if (buf[0]=='F' && buf[1]=='O' && buf[2]=='R' && buf[3]=='M' && buf[8]=='8' && buf[9]=='S' && buf[10]=='V' && buf[11]=='X' && buf[12]=='N' && buf[13]=='A' && buf[14]=='M' && buf[15]=='E' && buf[16]==0 && buf[17]==0 && buf[18]==0 && buf[19]==0x16)
{
int rate=(buf[62]<<8)+buf[63];
rfSuperStart+=78;
rfSuperSize=MIN(fsize-78,(buf[74]<<24)+(buf[75]<<16)+(buf[76]<<8)+buf[77]);
rfSuperXor=128;
s->type=Sample;
s->datahandle=(int)MIDASloadRawSample(filename,MIDAS_SAMPLE_8BIT_MONO,loop?MIDAS_LOOP_YES:MIDAS_LOOP_NO);
if(s->datahandle) s->playhandle=(int)MIDASplaySample((MIDASsample)s->datahandle,MIDAS_CHANNEL_AUTO,0/*priority*/,rate,64,MIDAS_PAN_MIDDLE);
}
#endif
// mp3 stream? starts with FF Fx or FF Ex or "ID3" or "RIFF" with fmt=55h
else if ( (buf[0]==0xff && (buf[1] & 0xe0)==0xe0)
|| (buf[0]=='I' && buf[1]=='D' && buf[2]=='3')
|| (buf[0]=='R' && buf[1]=='I' && buf[2]=='F' && buf[3]=='F' && buf[20]==0x55) )
{
int rate,stereo;
s->type=Stream;
s->datahandle=(int)MP3open(filename,fileofs,filesize,&rate,&stereo,errAdd);
if(s->datahandle) s->playhandle=(int)MIDASplayStreamPolling(stereo?MIDAS_SAMPLE_16BIT_STEREO:MIDAS_SAMPLE_16BIT_MONO,rate,1000*MP3PRECALCSEC);
s->bufferbytes=rate*(stereo?4:2)*MP3PRECALCSEC;
}
// maybe module?
else
{
s->type=Module;
s->datahandle=(int)MIDASloadModule(filename);
if(s->datahandle) s->playhandle=(int)MIDASplayModule((MIDASmodule)s->datahandle,loop);
}
#ifdef EXTENDFILE
rfSuperStart=0;
rfSuperSize=0;
rfSuperXor=0;
#endif
MIDASreportErr();
}
