private SharpDX.Direct3D11.Texture2D CreateSwaipChainTexture(Format dxgiFormat, SampleDescription multisampleDesc)
{
var d3dDevice = GraphicsDevice._d3dDevice;
var chainDesc = new SwapChainDescription()
{
ModeDescription =
{
Format = dxgiFormat,
Scaling = DisplayModeScaling.Stretched,
Width = Width,
Height = Height,
},
OutputHandle = _windowHandle,
SampleDescription = multisampleDesc,
Usage = Usage.RenderTargetOutput,
BufferCount = 2,
SwapEffect = SharpDXHelper.ToSwapEffect(PresentInterval),
IsWindowed = true,
};
// First, retrieve the underlying DXGI Device from the D3D Device.
// Creates the swap chain
using (var dxgiDevice = d3dDevice.QueryInterface <SharpDX.DXGI.Device1>())
using (var dxgiAdapter = dxgiDevice.Adapter)
using (var dxgiFactory = dxgiAdapter.GetParent <Factory1>())
{
_swapChain = new SwapChain(dxgiFactory, dxgiDevice, chainDesc);
}
// Obtain the backbuffer for this window which will be the final 3D rendertarget.
_backBuffer = SharpDX.Direct3D11.Resource.FromSwapChain <SharpDX.Direct3D11.Texture2D>(_swapChain, 0);
return(_backBuffer);
}
public SwapChainRenderTarget(GraphicsDevice graphicsDevice,
IntPtr windowHandle,
int width,
int height,
bool mipMap,
SurfaceFormat surfaceFormat,
DepthFormat depthFormat,
int preferredMultiSampleCount,
RenderTargetUsage usage,
PresentInterval presentInterval)
: base(
graphicsDevice,
width,
height,
mipMap,
surfaceFormat,
depthFormat,
preferredMultiSampleCount,
usage,
SurfaceType.SwapChainRenderTarget)
{
var dxgiFormat = surfaceFormat == SurfaceFormat.Color
? SharpDX.DXGI.Format.B8G8R8A8_UNorm
: SharpDXHelper.ToFormat(surfaceFormat);
var multisampleDesc = new SampleDescription(1, 0);
if (preferredMultiSampleCount > 1)
{
multisampleDesc.Count = preferredMultiSampleCount;
multisampleDesc.Quality = (int)StandardMultisampleQualityLevels.StandardMultisamplePattern;
}
var desc = new SwapChainDescription()
{
ModeDescription =
{
Format = dxgiFormat,
Scaling = DisplayModeScaling.Stretched,
Width = width,
Height = height,
},
OutputHandle = windowHandle,
SampleDescription = multisampleDesc,
Usage = Usage.RenderTargetOutput,
BufferCount = 2,
SwapEffect = SharpDXHelper.ToSwapEffect(presentInterval),
IsWindowed = true,
};
PresentInterval = presentInterval;
// Once the desired swap chain description is configured, it must
// be created on the same adapter as our D3D Device
var d3dDevice = graphicsDevice._d3dDevice;
// First, retrieve the underlying DXGI Device from the D3D Device.
// Creates the swap chain
using (var dxgiDevice = d3dDevice.QueryInterface <SharpDX.DXGI.Device1>())
using (var dxgiAdapter = dxgiDevice.Adapter)
using (var dxgiFactory = dxgiAdapter.GetParent <Factory1>())
{
_swapChain = new SwapChain(dxgiFactory, dxgiDevice, desc);
}
// Obtain the backbuffer for this window which will be the final 3D rendertarget.
var backBuffer = SharpDX.Direct3D11.Resource.FromSwapChain <SharpDX.Direct3D11.Texture2D>(_swapChain, 0);
// Create a view interface on the rendertarget to use on bind.
_renderTargetViews = new[] { new RenderTargetView(d3dDevice, backBuffer) };
// Get the rendertarget dimensions for later.
var backBufferDesc = backBuffer.Description;
var targetSize = new Point(backBufferDesc.Width, backBufferDesc.Height);
_texture = backBuffer;
// Create the depth buffer if we need it.
if (depthFormat != DepthFormat.None)
{
dxgiFormat = SharpDXHelper.ToFormat(depthFormat);
// Allocate a 2-D surface as the depth/stencil buffer.
using (
var depthBuffer = new SharpDX.Direct3D11.Texture2D(d3dDevice,
new Texture2DDescription()
{
Format = dxgiFormat,
ArraySize = 1,
MipLevels = 1,
Width = targetSize.X,
Height = targetSize.Y,
SampleDescription = multisampleDesc,
Usage = ResourceUsage.Default,
BindFlags = BindFlags.DepthStencil,
}))
// Create a DepthStencil view on this surface to use on bind.
_depthStencilView = new DepthStencilView(d3dDevice, depthBuffer);
}
}
