protected virtual SampleDescription GetMSAASampleDescription()
{
var sampleCount = 1;
var sampleQuality = 0;
#if MSAA
if (MSAA != MSAALevel.Disable)
{
do
{
var newSampleCount = sampleCount * 2;
var newSampleQuality = Device.CheckMultisampleQualityLevels(Format.B8G8R8A8_UNorm, newSampleCount) - 1;
if (newSampleQuality < 0)
{
break;
}
sampleCount = newSampleCount;
sampleQuality = newSampleQuality;
if (sampleCount == (int)MSAA)
{
break;
}
} while (sampleCount < 32);
}
#endif
return(new SampleDescription(sampleCount, sampleQuality));
}
public override void Init(IntPtr display, IntPtr window, uint samples, bool vsync, bool sRGB)
{
_display = display;
_window = window;
_vsync = vsync;
FeatureLevel[] features =
{
FeatureLevel.Level_11_1,
FeatureLevel.Level_11_0
};
SharpDX.Direct3D11.Device dev11 = new SharpDX.Direct3D11.Device(DriverType.Hardware, DeviceCreationFlags.None, features);
_dev = dev11.QueryInterfaceOrNull <SharpDX.Direct3D11.Device1>();
SampleDescription sampleDesc = new SampleDescription();
do
{
if (_dev.CheckMultisampleQualityLevels(Format.R8G8B8A8_UNorm, (int)samples) > 0)
{
sampleDesc.Count = (int)samples;
sampleDesc.Quality = 0;
break;
}
else
{
samples >>= 1;
}
} while (samples > 0);
SwapChainDescription1 desc = new SwapChainDescription1();
desc.Width = 0;
desc.Height = 0;
desc.Format = sRGB ? Format.R8G8B8A8_UNorm_SRgb : Format.R8G8B8A8_UNorm;
desc.Scaling = Scaling.None;
desc.SampleDescription = sampleDesc;
desc.Usage = Usage.RenderTargetOutput;
desc.BufferCount = 2;
desc.SwapEffect = SwapEffect.FlipSequential;
desc.Flags = SwapChainFlags.None;
SharpDX.DXGI.Device2 dev = _dev.QueryInterface <SharpDX.DXGI.Device2>();
Adapter adapter = dev.Adapter;
Factory2 factory = adapter.GetParent <Factory2>();
if (display == IntPtr.Zero)
{
GCHandle handle = (GCHandle)window;
SharpDX.ComObject coreWindow = new SharpDX.ComObject(handle.Target as object);
_swapChain = new SwapChain1(factory, _dev, coreWindow, ref desc);
}
else
{
_swapChain = new SwapChain1(factory, _dev, window, ref desc);
}
_device = new RenderDeviceD3D11(_dev.ImmediateContext.NativePointer, sRGB);
}