int dsound_set_listener_3d_position ( vec3d *position )
{
unsigned int
dsrval;
#ifdef _WIN32
dsrval = IDirectSound3DListener_SetPosition ( d3dsound_listener, position->x, position->y, position->z, DS3D_DEFERRED );
if ( dsrval != DS_OK )
{
debug_log ( "Unable to set position of 3d listener object: %s", get_dsound_error_message ( dsrval ) );
return ( FALSE );
}
else
{
return ( TRUE );
}
#endif
}
void I_UpdateListener(listener3d_t *desc)
{
float temp[3], val;
int i;
if(!initOk || !dsListener || !desc) return;
if(desc->flags & DDLISTENERF_POS)
{
for(i=0; i<3; i++) temp[i] = FIX2FLT(desc->pos[i]);
IDirectSound3DListener_SetPosition(dsListener, temp[VX], temp[VY], temp[VZ], DS3D_DEFERRED);
}
if(desc->flags & DDLISTENERF_MOV)
{
for(i=0; i<3; i++) temp[i] = FIX2FLT(desc->mov[i]);
IDirectSound3DListener_SetVelocity(dsListener, temp[VX], temp[VY], temp[VZ], DS3D_DEFERRED);
}
if(desc->flags & DDLISTENERF_YAW || desc->flags & DDLISTENERF_PITCH)
{
float y, p;
float top[3]; // Top vectors.
if(desc->flags & DDLISTENERF_YAW) listenerYaw = desc->yaw;
if(desc->flags & DDLISTENERF_PITCH) listenerPitch = desc->pitch;
// The angles in radians.
y = listenerYaw / 180 * PI;
p = (listenerPitch-90) / 180 * PI;
// Calculate the front vector.
temp[VX] = sin(y) * cos(p);
temp[VZ] = cos(y) * cos(p);
temp[VY] = sin(p);
/*temp[VX] = sin(y);
temp[VZ] = cos(y);
temp[VY] = 0;*/
// And the top vector.
top[VX] = -sin(y) * sin(p);
top[VZ] = -cos(y) * sin(p);
top[VY] = cos(p);
/*top[VX] = 0;
top[VY] = 1;
top[VZ] = 0;*/
IDirectSound3DListener_SetOrientation(dsListener,
temp[VX], temp[VY], temp[VZ], // Front vector.
top[VX], top[VY], top[VZ], DS3D_DEFERRED);
}
if(desc->flags & DDLISTENERF_SET_REVERB && eaxListener)
{
val = desc->reverb.space;
if(desc->reverb.decay > .5)
{
// This much decay needs at least the Generic environment.
if(val < .2) val = .2f;
}
EAX_dwSet(DSPROPERTY_EAXLISTENER_ENVIRONMENT,
val >= 1? EAX_ENVIRONMENT_PLAIN
: val >= .8? EAX_ENVIRONMENT_CONCERTHALL
: val >= .6? EAX_ENVIRONMENT_AUDITORIUM
: val >= .4? EAX_ENVIRONMENT_CAVE
: val >= .2? EAX_ENVIRONMENT_GENERIC
: EAX_ENVIRONMENT_ROOM);
EAX_dwSet(DSPROPERTY_EAXLISTENER_ROOM, volLinearToLog(desc->reverb.volume));
val = (desc->reverb.decay - .5)*1.5 + 1;
EAX_fMul(DSPROPERTY_EAXLISTENER_DECAYTIME, val, EAXLISTENER_MINDECAYTIME,
EAXLISTENER_MAXDECAYTIME);
val = 1.1 * (1.2 - desc->reverb.damping);
if(val < .1) val = .1f;
EAX_dwMul(DSPROPERTY_EAXLISTENER_ROOMHF, val);
EAX_fSet(DSPROPERTY_EAXLISTENER_ROOMROLLOFFFACTOR, 1.3f);
EAX_CommitDeferred();
}
if(desc->flags & DDLISTENERF_DISABLE_REVERB && eaxListener)
{
// Turn off all reverb by setting the room value to -100 dB.
EAX_dwSet(DSPROPERTY_EAXLISTENER_ROOM, EAXLISTENER_MINROOM);
EAX_CommitDeferred();
}
}
