public bool FrameAdvance(IController controller, bool render, bool rendersound)
{
_controller = controller;
_lagged = true;
_frame++;
if (!IsGameGear)
{
PSG.Set_Panning(Settings.ForceStereoSeparation ? ForceStereoByte : (byte)0xFF);
}
if (Tracer.Enabled)
{
Cpu.TraceCallback = s => Tracer.Put(s);
}
else
{
Cpu.TraceCallback = null;
}
if (IsGameGear_C == false)
{
Cpu.NonMaskableInterrupt = controller.IsPressed("Pause");
}
else if (!IsGameGear && IsGameGear_C)
{
Cpu.NonMaskableInterrupt = controller.IsPressed("P1 Start");
}
if (IsGame3D && Settings.Fix3D)
{
render = ((Frame & 1) == 0) & render;
}
int scanlinesPerFrame = Vdp.DisplayType == DisplayType.NTSC ? 262 : 313;
Vdp.SpriteLimit = Settings.SpriteLimit;
for (int i = 0; i < scanlinesPerFrame; i++)
{
Vdp.ScanLine = i;
Vdp.RenderCurrentScanline(render);
Vdp.ProcessFrameInterrupt();
Vdp.ProcessLineInterrupt();
ProcessLineControls();
for (int j = 0; j < Vdp.IPeriod; j++)
{
Cpu.ExecuteOne();
PSG.generate_sound();
s_L = PSG.current_sample_L;
s_R = PSG.current_sample_R;
if (s_L != old_s_L)
{
blip_L.AddDelta(sampleclock, s_L - old_s_L);
old_s_L = s_L;
}
if (s_R != old_s_R)
{
blip_R.AddDelta(sampleclock, s_R - old_s_R);
old_s_R = s_R;
}
sampleclock++;
}
if (Vdp.ScanLine == scanlinesPerFrame - 1)
{
Vdp.ProcessGGScreen();
Vdp.ProcessOverscan();
}
}
if (_lagged)
{
_lagCount++;
_isLag = true;
}
else
{
_isLag = false;
}
return(true);
}