//*
// =======================================================================================================================
// =======================================================================================================================
//
BOOL sound_Play3DSample( TRACK *psTrack, AUDIO_SAMPLE *psSample )
{
#ifndef WZ_NOSOUND
ALfloat zero[3] = { 0.0, 0.0, 0.0 };
ALfloat volume;
ALint error;
if (sfx3d_volume == 0.0)
{
return false;
}
volume = ((float)psTrack->iVol / 100.f); // max range is 0-100
psSample->fVol = volume; // store results for later
// If we can't hear it, then don't bother playing it.
if (volume == 0.0f)
{
return false;
}
// Clear error codes
alGetError();
alGenSources( 1, &(psSample->iSample) );
error = sound_GetError();
if (error != AL_NO_ERROR)
{
/* FIXME: We run out of OpenAL sources very quickly, so we
* should handle the case where we've ran out of them.
* Currently we don't do this, causing some unpleasant side
* effects, e.g. crashing...
*/
}
// HACK: this is a workaround for a bug in the 64bit implementation of OpenAL on GNU/Linux
// The AL_PITCH value really should be 1.0.
alSourcef(psSample->iSample, AL_PITCH, 1.001f);
sound_SetObjectPosition( psSample );
alSourcefv( psSample->iSample, AL_VELOCITY, zero );
alSourcei( psSample->iSample, AL_BUFFER, psTrack->iBufferName );
alSourcei( psSample->iSample, AL_LOOPING, (sound_SetupChannel(psSample)) ? AL_TRUE : AL_FALSE );
// NOTE: this is only useful for debugging.
#ifdef DEBUG
psSample->is3d = true;
psSample->isLooping = sound_TrackLooped(psSample->iTrack)? AL_TRUE : AL_FALSE;
memcpy(psSample->filename,psTrack->fileName, strlen(psTrack->fileName));
psSample->filename[strlen(psTrack->fileName)]='\0';
#endif
// Clear error codes
alGetError();
alSourcePlay( psSample->iSample );
sound_GetError();
#endif
return true;
}
//*
// =======================================================================================================================
// =======================================================================================================================
//
bool sound_Play2DSample(TRACK *psTrack, AUDIO_SAMPLE *psSample, bool bQueued)
{
ALfloat zero[3] = { 0.0, 0.0, 0.0 };
ALfloat volume;
ALint error;
if (sfx_volume == 0.0)
{
return false;
}
volume = ((float)psTrack->iVol / 100.0f); // each object can have OWN volume!
psSample->fVol = volume; // save computed volume
volume *= sfx_volume; // and now take into account the Users sound Prefs.
// We can't hear it, so don't bother creating it.
if (volume == 0.0f)
{
return false;
}
// Clear error codes
alGetError();
alGenSources(1, &(psSample->iSample));
error = sound_GetError();
if (error != AL_NO_ERROR)
{
/* FIXME: We run out of OpenAL sources very quickly, so we
* should handle the case where we've ran out of them.
* Currently we don't do this, causing some unpleasant side
* effects, e.g. crashing...
*/
}
alSourcef(psSample->iSample, AL_PITCH, 1.0f);
alSourcef(psSample->iSample, AL_GAIN, volume);
alSourcefv(psSample->iSample, AL_POSITION, zero);
alSourcefv(psSample->iSample, AL_VELOCITY, zero);
alSourcei(psSample->iSample, AL_BUFFER, psTrack->iBufferName);
alSourcei(psSample->iSample, AL_SOURCE_RELATIVE, AL_TRUE);
alSourcei(psSample->iSample, AL_LOOPING, (sound_SetupChannel(psSample)) ? AL_TRUE : AL_FALSE);
// NOTE: this is only useful for debugging.
#ifdef DEBUG
psSample->is3d = false;
psSample->isLooping = sound_TrackLooped(psSample->iTrack) ? AL_TRUE : AL_FALSE;
memcpy(psSample->filename, psTrack->fileName, strlen(psTrack->fileName));
psSample->filename[strlen(psTrack->fileName)] = '\0';
#endif
// Clear error codes
alGetError();
alSourcePlay(psSample->iSample);
sound_GetError();
if (bQueued)
{
current_queue_sample = psSample->iSample;
}
else if (current_queue_sample == psSample->iSample)
{
current_queue_sample = -1;
}
return true;
}
static bool sound_SetupChannel(AUDIO_SAMPLE *psSample)
{
sound_AddActiveSample(psSample);
return sound_TrackLooped(psSample->iTrack);
}
