void D3DCore_Impl::Channel_SlideTo(HCHANNEL chn, float time, int volume, int pan, float pitch)
{
if(!m_pADevice) return;
bool existChannel = false;
for( Channel* I = channels; I != NULL; I = I->next )
if( I->Handler == chn )
{
existChannel = true;
break;
}
if(!existChannel)
{
for( CStreamList* I = streams; I != NULL; I = I->next )
if( I->hstream == chn )
{
existChannel = true;
break;
}
}
if(existChannel)
{
Slide* nSlide = new Slide;
nSlide->chn = (OutputStream*)chn;
nSlide->time = time;
OutputStream* OStream = (OutputStream*)chn;
nSlide->dVolume = 0.0f;
if( volume != -1 )
{
float OldVolume = OStream->getVolume();
float NewVolume = volume*1.0f;
if( volume == -2 ) NewVolume = 0.0f;
nSlide->dVolume = (NewVolume - OldVolume)/time;
}
nSlide->dPan = 0.0f;
if(pan != -101)
{
float OldPan = OStream->getPan();
float NewPan = pan/100.0f;
nSlide->dPan = (NewPan - OldPan)/time;
}
nSlide->dPitch = 0.0f;
if(pan != -101)
{
float OldPitch = OStream->getPitchShift();
float NewPitch = pitch;
nSlide->dPan = (NewPitch - OldPitch)/time;
}
nSlide->next = slides;
slides = nSlide;
}
}
void D3DCore_Impl::Channel_Slide_Update( float dt )
{
Slide *I = slides, *Prev = 0;
while( I != NULL )
{
OutputStream* OStream = (*I).chn;
(*I).time -= dt;
float NewVolume = OStream->getVolume() + ((*I).dVolume * dt);
float NewPan = OStream->getPan() + ((*I).dPan * dt);
float NewPitch = OStream->getPitchShift() + ((*I).dPitch * dt);
OStream->setVolume( NewVolume );
OStream->setPan( NewPan );
OStream->setPitchShift( NewPitch );
if( (*I).time <= 0.0f )
{
if(Prev)
{
Prev->next=I->next;
delete I;
I = Prev->next;
}
else
{
slides=I->next;
delete I;
I = slides;
}
}
else
{
Prev = I;
I = I->next;
}
}
}
static int wrap_getPitchShift(lua_State* L) {
lua_settop(L, 1);
OutputStream* self = luaAudiere_checkOutputStream(L, 1);
lua_pushnumber(L, self->getPitchShift());
return 1;
}