NMS_Audio::NMS_Audio(ALfloat* pListenerPos,ALfloat* pListenerVel,ALfloat* pListenerOri)
{
// Initialize OpenAL and clear the error bit.
alutInit(0, NULL);
alGetError();
SetListenerValues(pListenerPos,pListenerVel,pListenerOri);
}
int main(int argc, char *argv[])
{
printf("MindCode's OpenAL Lesson 1: Single Static Source\n\n");
printf("Controls:\n");
printf("p) Play\n");
printf("s) Stop\n");
printf("h) Hold (pause)\n");
printf("q) Quit\n\n");
// Initialize OpenAL and clear the error bit.
alutInit(NULL, 0);
alGetError();
// Load the wav data.
if(LoadALData() == AL_FALSE)
{
printf("Error loading data.");
return 0;
}
SetListenerValues();
// Setup an exit procedure.
atexit(KillALData);
// Loop.
ALubyte c = ' ';
while(c != 'q')
{
c = getche();
switch(c)
{
// Pressing 'p' will begin playing the sample.
case 'p': alSourcePlay(Source); break;
// Pressing 's' will stop the sample from playing.
case 's': alSourceStop(Source); break;
// Pressing 'h' will pause the sample.
case 'h': alSourcePause(Source); break;
};
}
return 0;
}
/*
* ALboolean LoadALData()
*
* This function will load our sample data from the disk using the alut
* utility and send the data into OpenAL as a buffer. A source is then
* also created to play that buffer.
*/
int LoadSoundBuffers()
{
int theerror=0;
// Variables to load into.
if (total_loaded_buffers==0) { fprintf(stderr,"No Sounds to load!\n");
return 0; }
ALenum format;
ALsizei size;
ALvoid* data;
ALsizei freq;
ALboolean loop;
// Load wav data into buffers.
alGenBuffers(total_loaded_buffers, Buffers);
if(alGetError() != AL_NO_ERROR) { fprintf(stderr,"Error Generating Buffers!\n");
return 0; }
for (unsigned int i=0; i<total_loaded_buffers; i++)
{
alutLoadWAVFile((ALbyte *)filenames[i], &format, &data, &size, &freq, &loop);
theerror=alGetError();
if(theerror != AL_NO_ERROR) { fprintf(stderr,"Error (%u) loading Wav sound Buffer %u %s\n",theerror,i,filenames[i]); }
alBufferData(Buffers[i], format, data, size, freq);
theerror=alGetError();
if(theerror != AL_NO_ERROR) { fprintf(stderr,"Error (%u) loading Wav sound Buffer %u %s\n",theerror,i,filenames[i]); }
alutUnloadWAV(format, data, size, freq);
theerror=alGetError();
if(theerror != AL_NO_ERROR) { fprintf(stderr,"Error (%u) loading Wav sound Buffer %u %s\n",theerror,i,filenames[i]); }
free(filenames[i]); /* Release memory for filename */
}
// Bind buffers into audio sources.
alGenSources(NUM_SOURCES, Sources);
theerror=alGetError();
if(theerror != AL_NO_ERROR) { fprintf(stderr,"Error Generating Sources (%u)!\n",theerror);
return 0; }
for (unsigned int i=0; i<total_loaded_buffers; i++)
{
/*alGenSources( 1, &Sources[i] );
theerror=alGetError();
if(theerror != AL_NO_ERROR) { cout<<"Error Generating Sources ("<<theerror<<")!\n";
return false; } */
alSourcei (Sources[i], AL_BUFFER, Buffers[i] );
alSourcef (Sources[i], AL_PITCH, 1.0f );
alSourcef (Sources[i], AL_GAIN, 1.0f );
alSourcefv(Sources[i], AL_POSITION, SourcesPos[i]);
alSourcefv(Sources[i], AL_VELOCITY, SourcesVel[i]);
alSourcei (Sources[i], AL_LOOPING, AL_FALSE );
}
// Bind buffers into audio sources.
// Do another error check and return.
if(alGetError() != AL_NO_ERROR) return 0;
SetListenerValues();
return 1;
}
