//---------------------------------------------------------------------
// Init sound object
//---------------------------------------------------------------------
void CSoundOBJ::Init(Tag t, SVector &pos)
{ CAudioManager *snd = globals->snd;
sEnd = 0;
idn = t;
sPlay = 0;
gain = 1;
pitch = 1;
loop = false;
offset = 0;
for (int k=0; k<8; k++) sounds[k] = 0;
alGenSources (1, &alSRC);
snd->Check();
snd->IncSRC();
alSource3f(alSRC,AL_POSITION,pos.x,pos.y,pos.z);
alSourcef (alSRC,AL_REFERENCE_DISTANCE,8.0f);
snd->Check();
for (int k=0; k<ENGINE_MAX_SOUND; k++) sounds[k] = 0;
}
//---------------------------------------------------------------------
// Play a sound
//---------------------------------------------------------------------
void CSoundSRC::Play(CSoundBUF *sbf)
{ CAudioManager *snd = globals->snd;
//---Stop current sound if any ----------------
alSourceStop(alSRC);
alSourcei (alSRC, AL_BUFFER, 0);
sPlay = sbf;
//-- Play the current sound -------------------
if (0 == sbf) return;
ALint buf = sPlay->GetBuffer();
alSourcei(alSRC,AL_BUFFER,buf);
alSourcei(alSRC,AL_LOOPING,loop);
alSourcePlay(alSRC);
snd->Check();
return;
}
//---------------------------------------------------------------------
// Loop current sound from offset position
//---------------------------------------------------------------------
void CSoundOBJ::PlayFromOffset(int No)
{ CAudioManager *snd = globals->snd;
ALint state;
alGetSourcei (alSRC, AL_SOURCE_STATE, &state);
if ((sPlay == sounds[No]) && (state == AL_PLAYING)) return;
sPlay = sounds[No];
if (0 == sPlay) return;
offset = sPlay->GetOffset();
alSourcei(alSRC,AL_BUFFER, sPlay->GetBuffer());
alSourcei(alSRC,AL_SAMPLE_OFFSET,offset);
alSourcei(alSRC,AL_LOOPING,false);
alSourcef(alSRC,AL_PITCH,pitch);
alSourcePlay(alSRC);
snd->Check();
return;
}
//=====================================================================================
// JS: Sound Buffer: An AL buffer dedicated to one sound
// SoundBUF are managed by CAudioManager in a buffer cache. Do not delete them.
//=====================================================================================
CSoundBUF::CSoundBUF(Tag t, char *nf)
{ CAudioManager *snd = globals->snd;
user = 1;
idn = t;
offset = 0;
nfile = 0;
alSRC = 0;
TagToString(itag,t);
ALuint buf;
alGenBuffers(1,&buf);
alBUF = buf;
snd->Check();
snd->LoadFile(this,nf);
snd->IncBUF();
gain = 1;
pMin = 1;
pMax = 1;
}
//---------------------------------------------------------------------
// Play the requested sound in the indicated mode
// NOTE: Same sound request does nothing. Use changeMode to
// change playing conditions
// TODO: Check if same sound is playing
//---------------------------------------------------------------------
void CSoundOBJ::Play(int No)
{ CAudioManager *snd = globals->snd;
ALint state;
alGetSourcei (alSRC, AL_SOURCE_STATE, &state);
if ((sPlay == sounds[No]) && (state == AL_PLAYING)) return;
//---Stop current sound if any ----------------
StopSound();
//-- Play the current sound -------------------
sPlay = sounds[No];
if (0 == sPlay) return;
offset = sPlay->GetOffset();
ALint buf = sPlay->GetBuffer();
alSourcei(alSRC,AL_BUFFER,buf);
alSourcei(alSRC,AL_LOOPING,false);
alSourcef(alSRC,AL_GAIN,gain);
alSourcef(alSRC,AL_PITCH,pitch);
alSourcei(alSRC,AL_SAMPLE_OFFSET,offset);
alSourcePlay(alSRC);
snd->Check();
}
