static void Main()
{
#region d3d initialization
// create winform
Form1 form = new Form1();
form.Text = "D3D11.2Rendering";
form.Width = 800;
form.Height = 600;
// device & swapChain
Device2 device;
SwapChain1 swapChain;
// First create a regular D3D11 device
using (
var device11 = new Device(
SharpDX.Direct3D.DriverType.Hardware,
DeviceCreationFlags.None,
new[] {
SharpDX.Direct3D.FeatureLevel.Level_11_1,
SharpDX.Direct3D.FeatureLevel.Level_11_0,
}))
{
// Query device for the Device1 interface (ID3D11Device1)
device = device11.QueryInterfaceOrNull <Device2>();
if (device == null)
{
throw new NotSupportedException("SharpDX.Direct3D11.Device2 is not supported");
}
}
// Rather than create a new DXGI Factory we should reuse
// the one that has been used internally to create the device
using (var dxgi = device.QueryInterface <SharpDX.DXGI.Device2>())
using (var adapter = dxgi.Adapter)
using (var factory = adapter.GetParent <Factory2>())
{
var desc1 = new SwapChainDescription1()
{
Width = form.ClientSize.Width,
Height = form.ClientSize.Height,
Format = Format.R8G8B8A8_UNorm,
Stereo = false,
SampleDescription = new SampleDescription(1, 0),
Usage = Usage.BackBuffer | Usage.RenderTargetOutput,
BufferCount = 1,
Scaling = Scaling.Stretch,
SwapEffect = SwapEffect.Discard,
};
swapChain = new SwapChain1(factory,
device,
form.Handle,
ref desc1,
new SwapChainFullScreenDescription()
{
RefreshRate = new Rational(60, 1),
Scaling = DisplayModeScaling.Centered,
Windowed = true
},
// Restrict output to specific Output (monitor)
null);
swapChain.QueryInterfaceOrNull <SwapChain2>();
}
// Create references to backBuffer and renderTargetView
var backBuffer = Texture2D.FromSwapChain <Texture2D>(swapChain, 0);
var renderTargetView = new RenderTargetView(device, backBuffer);
#endregion
#region render loop
// Create Clock and FPS counters
var clock = new System.Diagnostics.Stopwatch();
var clockFrequency = (double)System.Diagnostics.Stopwatch.Frequency;
clock.Start();
var deltaTime = 0.0;
var fpsTimer = new System.Diagnostics.Stopwatch();
fpsTimer.Start();
var fps = 0.0;
int fpsFrames = 0;
RenderLoop.Run(form, () =>
{
// Time in seconds
var totalSeconds = clock.ElapsedTicks / clockFrequency;
#region FPS and title update
fpsFrames++;
if (fpsTimer.ElapsedMilliseconds > 1000)
{
fps = 1000.0 * fpsFrames / fpsTimer.ElapsedMilliseconds;
// Update window title with FPS once every second
form.Text = string.Format("D3D11.2Rendering - FPS: {0:F2} ({1:F2}ms/frame)", fps, (float)fpsTimer.ElapsedMilliseconds / fpsFrames);
// Restart the FPS counter
fpsTimer.Reset();
fpsTimer.Start();
fpsFrames = 0;
}
#endregion
// clearcolor
var lerpColor = SharpDX.Color.Lerp(Color.LightBlue, Color.DarkBlue, (float)(Math.Sin(totalSeconds) / 2.0 + 0.5));
device.ImmediateContext.ClearRenderTargetView(renderTargetView, lerpColor);
// rendering commands
// Present the frams
swapChain.Present(0, PresentFlags.None, new PresentParameters());
// Determine the time it took to render the frame
deltaTime = (clock.ElapsedTicks / clockFrequency) - totalSeconds;
});
#endregion
#region d3d cleanup
// release
renderTargetView.Dispose();
backBuffer.Dispose();
device.Dispose();
swapChain.Dispose();
#endregion
}