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sound.h
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#include "includes.h"
ALuint Buffers[NUM_BUFFERS];
ALuint Sources[NUM_SOURCES];
ALfloat SourcesPos[NUM_SOURCES][3];
ALfloat SourcesVel[NUM_SOURCES][3];
ALfloat ListenerPos[]={0.0,0.0,0.0};
ALfloat ListenerVel[]={0.0,0.0,0.0};
ALfloat ListenerOri[]={0.0,0.0,-1.0,0.0,1.0,0.0};
ALboolean LoadALData()
{
// Variables to load into.
ALenum format;
ALsizei size;
ALvoid* data;
ALsizei freq;
ALboolean loop;
// Load wav data into buffers.
alGenBuffers(NUM_BUFFERS, Buffers);
if (alGetError() != AL_NO_ERROR)
{
return AL_FALSE;
}
alutLoadWAVFile((ALbyte*)"motorcycle-start.wav", &format, &data, &size, &freq, &loop);
alBufferData(Buffers[START], format, data, size, freq);
alutUnloadWAV(format, data, size, freq);
alutLoadWAVFile((ALbyte*)"back_bourne.wav", &format, &data, &size, &freq, &loop);
alBufferData(Buffers[IDLE], format, data, size, freq);
alutUnloadWAV(format, data, size, freq);
alutLoadWAVFile((ALbyte*)"coin2.wav", &format, &data, &size, &freq, &loop);
alBufferData(Buffers[COIN], format, data, size, freq);
alutUnloadWAV(format, data, size, freq);
alutLoadWAVFile((ALbyte*)"rooster.wav", &format, &data, &size, &freq, &loop);
alBufferData(Buffers[ROOSTER], format, data, size, freq);
alutUnloadWAV(format, data, size, freq);
alutLoadWAVFile((ALbyte*)"wolf.wav", &format, &data, &size, &freq, &loop);
alBufferData(Buffers[WOLF], format, data, size, freq);
alutUnloadWAV(format, data, size, freq);
// Bind buffers into audio sources.
alGenSources(NUM_SOURCES, Sources);
if (alGetError() != AL_NO_ERROR)
return AL_FALSE;
alSourcei (Sources[START], AL_BUFFER, Buffers[START] );
alSourcef (Sources[START], AL_PITCH, 1.0 );
alSourcef (Sources[START], AL_GAIN, 1.0 );
alSourcefv(Sources[START], AL_POSITION, SourcesPos[START]);
alSourcefv(Sources[START], AL_VELOCITY, SourcesVel[START]);
alSourcei (Sources[START], AL_LOOPING, AL_FALSE );
alSourcei (Sources[IDLE], AL_BUFFER, Buffers[IDLE] );
alSourcef (Sources[IDLE], AL_PITCH, 1.0 );
alSourcef (Sources[IDLE], AL_GAIN, 1.0 );
alSourcefv(Sources[IDLE], AL_POSITION, SourcesPos[IDLE]);
alSourcefv(Sources[IDLE], AL_VELOCITY, SourcesVel[IDLE]);
alSourcei (Sources[IDLE], AL_LOOPING, AL_TRUE );
alSourcei (Sources[COIN], AL_BUFFER, Buffers[COIN] );
alSourcef (Sources[COIN], AL_PITCH, 1.0 );
alSourcef (Sources[COIN], AL_GAIN, 1.0 );
alSourcefv(Sources[COIN], AL_POSITION, SourcesPos[COIN]);
alSourcefv(Sources[COIN], AL_VELOCITY, SourcesVel[COIN]);
alSourcei (Sources[COIN], AL_LOOPING, AL_FALSE );
alSourcei (Sources[ROOSTER], AL_BUFFER, Buffers[ROOSTER] );
alSourcef (Sources[ROOSTER], AL_PITCH, 1.0 );
alSourcef (Sources[ROOSTER], AL_GAIN, 1.0 );
alSourcefv(Sources[ROOSTER], AL_POSITION, SourcesPos[ROOSTER]);
alSourcefv(Sources[ROOSTER], AL_VELOCITY, SourcesVel[ROOSTER]);
alSourcei (Sources[ROOSTER], AL_LOOPING, AL_FALSE );
alSourcei (Sources[WOLF], AL_BUFFER, Buffers[WOLF] );
alSourcef (Sources[WOLF], AL_PITCH, 1.0 );
alSourcef (Sources[WOLF], AL_GAIN, 1.0 );
alSourcefv(Sources[WOLF], AL_POSITION, SourcesPos[WOLF]);
alSourcefv(Sources[WOLF], AL_VELOCITY, SourcesVel[WOLF]);
alSourcei (Sources[WOLF], AL_LOOPING, AL_FALSE );
// Do another error check and return.
if( alGetError() != AL_NO_ERROR)
return AL_FALSE;
return AL_TRUE;
}
void SetListenerValues()
{
alListenerfv(AL_POSITION,ListenerPos);
alListenerfv(AL_VELOCITY,ListenerVel);
alListenerfv(AL_ORIENTATION,ListenerOri);
}
void KillALData()
{
alDeleteBuffers(NUM_BUFFERS, &Buffers[0]);
alDeleteSources(NUM_SOURCES, &Sources[0]);
alutExit();
}
void init_sound()
{
alutInit(NULL,0);
alGetError();
if(LoadALData()==AL_FALSE)
return;
SetListenerValues();
atexit(KillALData);
alSourcefv(Sources[START], AL_POSITION, SourcesPos[START]);
alSourcePlay(Sources[START]);
alSourcefv(Sources[IDLE], AL_POSITION, SourcesPos[IDLE]);
alSourcePlay(Sources[IDLE]);
alSourcefv(Sources[COIN], AL_POSITION, SourcesPos[COIN]);
alSourcefv(Sources[ROOSTER], AL_POSITION, SourcesPos[ROOSTER]);
alSourcefv(Sources[WOLF], AL_POSITION, SourcesPos[WOLF]);
}