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#include <stdio.h>
#include <csound/csound.hpp>
#include <pthread.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <sys/time.h>
struct TamTamSound
{
void * ThreadID;
CSOUND * csound;
enum {CONTINUE, STOP} PERF_STATUS;
int playnote;
TamTamSound(char * orc)
: playnote(0)
{
csound = csoundCreate(NULL);
int argc = 2;
char * prog = "fake_progname";
char ** argv = (char **) malloc(argc * sizeof(char*));
argv[0] = prog;
argv[1] = orc;
csoundInitialize(&argc, &argv, 0);
int result = csoundCompile( csound, argc, argv);
free(argv);
if (!result)
{
PERF_STATUS = CONTINUE;
ThreadID = csoundCreateThread(csThread, (void*)this);
}
else
{
fprintf(stderr, "ERROR: csoundCompile() returned %i\n", result);
csoundDestroy(csound);
csound = NULL;
ThreadID = NULL;
}
}
~TamTamSound()
{
if (csound)
{
PERF_STATUS = STOP;
uintptr_t rval = csoundJoinThread(ThreadID);
if (1) fprintf(stderr, "INFO: thread returned %zu\n", rval);
csoundDestroy(csound);
}
}
static double pytime(const struct timeval * tv)
{
return (double) tv->tv_sec + (double) tv->tv_usec / 1000000.0;
}
uintptr_t thread_fn()
{
struct timeval tv;
double t_prev, t_this;
double m = 0.0;
int loops = 0;
while ( (csoundPerformKsmps(csound) == 0)
&& (PERF_STATUS == CONTINUE))
{
gettimeofday(&tv, 0);
double t_this = pytime(&tv);
if (loops)
{
if (m < t_this - t_prev)
{
m = t_this - t_prev;
fprintf(stderr, "maximum lag %lf\n", m);
}
}
++loops;
t_prev = t_this;
if (playnote)
{
play_note(playnote);
playnote = 0;
}
}
csoundDestroy(csound);
return 1;
}
static uintptr_t csThread(void *clientData)
{
return ((TamTamSound*)clientData)->thread_fn();
}
void load_instrument(int table, const char * fname)
{
if (!csound)
{
fprintf(stderr, "ERROR: TamTamSound::%s() csound not loaded\n", __FUNCTION__);
return;
}
char str[512];
sprintf(str, "f%d 0 0 -1 \"%s\" 0 0 0", table, fname);
if (1) fprintf(stdout, "%s\n", str);
csoundInputMessage(csound, str);
}
void play_note(int table)
{
if (!csound)
{
fprintf(stderr, "ERROR: TamTamSound::%s() csound not loaded\n", __FUNCTION__);
return;
}
MYFLT p[16];
p[0] = 0.0;
p[1] = 5003.1;
p[2] = 0.0;
p[3] = 0.5;
p[4] = 1.0;
p[5] = 0.0;
p[6] = 0.8;
p[7] = 0.5;
p[8] = (MYFLT) table;
p[9] = 0.002;
p[10] = 0.05;
p[11] = 0.0;
p[12] = 1000.0;
p[13] = 0.0;
p[14] = 0.0;
p[15] = 0.0;
csoundScoreEvent(csound, 'i', p+1, 15);
}
void setMasterVolume(MYFLT vol)
{
MYFLT *p;
if (!(csoundGetChannelPtr(csound, &p, "masterVolume", CSOUND_CONTROL_CHANNEL | CSOUND_INPUT_CHANNEL)))
*p = (MYFLT) vol;
else
{
fprintf(stderr, "ERROR: failed to set master volume\n");
}
}
bool good()
{
return csound != NULL;
}
};
int main( int argc, char ** argv)
{
int userInput = 200;
TamTamSound * tt = new TamTamSound(argv[1]);
tt->setMasterVolume(30.0);
while ((userInput != 0) && (tt->good()))
{
fprintf(stderr, "Enter a pitch\n");
scanf("%i", &userInput);
tt->load_instrument(5083, "/home/olpc/tamtam/Resources/Sounds/sitar");
scanf("%i", &userInput);
tt->playnote = (5083);
}
delete tt;
return 0;
}
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