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#include <iostream>
#include <dlfcn.h>
#include "note_loader.h"
#include "programs.h"
#include "note_funcs.h"
#include "globals.h"
using namespace std;
void load_note_from_so(string file, program_t &prog)
{
void *handle;
handle = dlopen(file.c_str(), RTLD_LAZY);
if (handle==NULL)
throw string("could not open shared object (")+string(dlerror())+string(")");
try
{
prog.create_func=(create_func_t*) dlsym(handle,"create_note");
if (prog.create_func==NULL)
throw string("could not find symbol create_note in shared object (")+dlerror()+")";
init_func_t* initfunc=(init_func_t*) dlsym(handle,"init_vars");
if (initfunc==NULL)
throw string("could not find symbol init_vars in shared object (")+dlerror()+")";
initfunc(samp_rate, filter_update_frames, wave, curr_lfo, &output_note, &IntToStr);
prog.dl_handle=handle;
}
catch (string err)
{
prog.create_func=NULL;
prog.dl_handle=NULL;
dlclose(handle);
throw err;
}
}
void maybe_unload_note(program_t &prog)
{
if (prog.dl_handle)
{
dlclose(prog.dl_handle);
prog.dl_handle=NULL;
prog.create_func=NULL;
}
}
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