public ID3D11Texture2D GetBackbuffer(ID3D11Device device, IntPtr hWnd)
{
if (!m_swapChain)
{
using (var dxgiDevice = new IDXGIDevice2())
{
device.QueryInterface(ref IDXGIDevice2.IID, out dxgiDevice.PtrForNew).ThrowIfFailed();
dxgiDevice.GetAdapter(out IDXGIAdapter dxgiAdapter).ThrowIfFailed();
using (dxgiAdapter)
{
using (var dxgiFactory = new IDXGIFactory2())
{
dxgiAdapter.GetParent(ref IDXGIFactory2.IID, out dxgiFactory.PtrForNew).ThrowIfFailed();
var desc = new DXGI_SWAP_CHAIN_DESC1
{
Format = DXGI_FORMAT._B8G8R8A8_UNORM,
AlphaMode = DXGI_ALPHA_MODE._UNSPECIFIED,
BufferUsage = DXGI_USAGE._RENDER_TARGET_OUTPUT,
Scaling = DXGI_SCALING._NONE,
BufferCount = 2,
SwapEffect = DXGI_SWAP_EFFECT._FLIP_SEQUENTIAL,
SampleDesc = new DXGI_SAMPLE_DESC
{
Count = 1,
Quality = 0,
},
};
var fs_desc = new DXGI_SWAP_CHAIN_FULLSCREEN_DESC
{
Windowed = 1,
};
var hr = dxgiFactory.CreateSwapChainForHwnd(device, hWnd, ref desc, ref fs_desc, null, out m_swapChain);
hr.ThrowIfFailed();
}
}
}
}
var texture = new ID3D11Texture2D();
m_swapChain.GetBuffer(0, ref ID3D11Texture2D.IID, out texture.PtrForNew).ThrowIfFailed();
return(texture);
}
public static IDXGISwapChain1 CreateSwapChainForHwnd(
ID3D11Device device,
IntPtr hwnd)
{
IDXGIDevice dxgiDevice = device.QueryInterface <IDXGIDevice>();
IDXGIFactory2 dxgiFactory = dxgiDevice.GetAdapter().GetParent <IDXGIFactory2>();
SwapChainDescription1 dxgiDesc = new()
{
Format = Format.B8G8R8A8_UNorm,
SampleDescription = new SampleDescription(1, 0),
BufferUsage = Usage.RenderTargetOutput,
BufferCount = 2,
};
return(dxgiFactory.CreateSwapChainForHwnd(
device,
hwnd,
dxgiDesc));
}
public static ComObject <T> CreateSwapChainForHwnd <T>(this IDXGIFactory2 factory,
IDXGIDevice1 device,
IntPtr hwnd,
DXGI_SWAP_CHAIN_DESC1 desc,
DXGI_SWAP_CHAIN_FULLSCREEN_DESC?fullScreenDesc = null,
IDXGIOutput1 restrictToOutput = null) where T : IDXGISwapChain1
{
if (factory == null)
{
throw new ArgumentNullException(nameof(factory));
}
if (device == null)
{
throw new ArgumentNullException(nameof(device));
}
using (var mem = fullScreenDesc.StructureToMemory())
{
factory.CreateSwapChainForHwnd(device, hwnd, ref desc, mem.Pointer, restrictToOutput, out var swapChain).ThrowOnError();
return(new ComObject <T>((T)swapChain));
}
}
private D3D11GraphicsDevice(Window?window, SizeI size, Format depthStencilFormat = Format.D32_Float)
{
Window = window;
Size = size;
Factory = CreateDXGIFactory1 <IDXGIFactory2>();
using (IDXGIAdapter1 adapter = GetHardwareAdapter())
{
DeviceCreationFlags creationFlags = DeviceCreationFlags.BgraSupport;
#if DEBUG
if (SdkLayersAvailable())
{
creationFlags |= DeviceCreationFlags.Debug;
}
#endif
if (D3D11CreateDevice(
adapter,
DriverType.Unknown,
creationFlags,
s_featureLevels,
out ID3D11Device tempDevice, out FeatureLevel, out ID3D11DeviceContext tempContext).Failure)
{
// If the initialization fails, fall back to the WARP device.
// For more information on WARP, see:
// http://go.microsoft.com/fwlink/?LinkId=286690
D3D11CreateDevice(
IntPtr.Zero,
DriverType.Warp,
creationFlags,
s_featureLevels,
out tempDevice, out FeatureLevel, out tempContext).CheckError();
}
Device = tempDevice.QueryInterface <ID3D11Device1>();
DeviceContext = tempContext.QueryInterface <ID3D11DeviceContext1>();
tempContext.Dispose();
tempDevice.Dispose();
}
if (window != null)
{
IntPtr hwnd = window.Handle;
SwapChainDescription1 swapChainDescription = new()
{
Width = window.ClientSize.Width,
Height = window.ClientSize.Height,
Format = Format.R8G8B8A8_UNorm,
BufferCount = FrameCount,
BufferUsage = Usage.RenderTargetOutput,
SampleDescription = SampleDescription.Default,
Scaling = Scaling.Stretch,
SwapEffect = SwapEffect.FlipDiscard,
AlphaMode = AlphaMode.Ignore
};
SwapChainFullscreenDescription fullscreenDescription = new SwapChainFullscreenDescription
{
Windowed = true
};
SwapChain = Factory.CreateSwapChainForHwnd(Device, hwnd, swapChainDescription, fullscreenDescription);
Factory.MakeWindowAssociation(hwnd, WindowAssociationFlags.IgnoreAltEnter);
BackBufferTexture = SwapChain.GetBuffer <ID3D11Texture2D>(0);
RenderTargetView = Device.CreateRenderTargetView(BackBufferTexture);
}
else
{
// Create offscreen texture
OffscreenTexture = Device.CreateTexture2D(Format.R8G8B8A8_UNorm, Size.Width, Size.Height, 1, 1, null, BindFlags.ShaderResource | BindFlags.RenderTarget);
RenderTargetView = Device.CreateRenderTargetView(OffscreenTexture);
}
if (depthStencilFormat != Format.Unknown)
{
DepthStencilTexture = Device.CreateTexture2D(depthStencilFormat, Size.Width, Size.Height, 1, 1, null, BindFlags.DepthStencil);
DepthStencilView = Device.CreateDepthStencilView(DepthStencilTexture !, new DepthStencilViewDescription(DepthStencilTexture, DepthStencilViewDimension.Texture2D));
}
ReadOnlySpan <VertexPositionColor> triangleVertices = stackalloc VertexPositionColor[]
{
new VertexPositionColor(new Vector3(0f, 0.5f, 0.0f), new Color4(1.0f, 0.0f, 0.0f, 1.0f)),
new VertexPositionColor(new Vector3(0.5f, -0.5f, 0.0f), new Color4(0.0f, 1.0f, 0.0f, 1.0f)),
new VertexPositionColor(new Vector3(-0.5f, -0.5f, 0.0f), new Color4(0.0f, 0.0f, 1.0f, 1.0f))
};
bool dynamic = false;
if (dynamic)
{
_vertexBuffer = Device.CreateBuffer(VertexPositionColor.SizeInBytes * 3, BindFlags.VertexBuffer, ResourceUsage.Dynamic, CpuAccessFlags.Write);
MappedSubresource mappedSubresource = DeviceContext.Map(_vertexBuffer, 0, MapMode.WriteDiscard);
triangleVertices.CopyTo(mappedSubresource.AsSpan <VertexPositionColor>(3));
DeviceContext.Unmap(_vertexBuffer, 0);
}
else
{
_vertexBuffer = Device.CreateBuffer(triangleVertices, BindFlags.VertexBuffer);
}
InputElementDescription[] inputElementDescs = new[]
{
new InputElementDescription("POSITION", 0, Format.R32G32B32_Float, 0, 0),
new InputElementDescription("COLOR", 0, Format.R32G32B32A32_Float, 12, 0)
};
Span <byte> vertexShaderByteCode = CompileBytecode("Triangle.hlsl", "VSMain", "vs_4_0");
Span <byte> pixelShaderByteCode = CompileBytecode("Triangle.hlsl", "PSMain", "ps_4_0");
_vertexShader = Device.CreateVertexShader(vertexShaderByteCode);
_pixelShader = Device.CreatePixelShader(pixelShaderByteCode);
_inputLayout = Device.CreateInputLayout(inputElementDescs, vertexShaderByteCode);
}
private D3D11GraphicsDevice(Window?window, Size size)
{
Window = window;
Size = size;
if (CreateDXGIFactory1(out Factory).Failure)
{
throw new InvalidOperationException("Cannot create IDXGIFactory1");
}
using (IDXGIAdapter1? adapter = GetHardwareAdapter())
{
DeviceCreationFlags creationFlags = DeviceCreationFlags.BgraSupport;
#if DEBUG
if (SdkLayersAvailable())
{
creationFlags |= DeviceCreationFlags.Debug;
}
#endif
if (D3D11CreateDevice(
adapter !,
DriverType.Unknown,
creationFlags,
s_featureLevels,
out ID3D11Device tempDevice, out FeatureLevel, out ID3D11DeviceContext tempContext).Failure)
{
// If the initialization fails, fall back to the WARP device.
// For more information on WARP, see:
// http://go.microsoft.com/fwlink/?LinkId=286690
D3D11CreateDevice(
null,
DriverType.Warp,
creationFlags,
s_featureLevels,
out tempDevice, out FeatureLevel, out tempContext).CheckError();
}
Device = tempDevice.QueryInterface <ID3D11Device1>();
DeviceContext = tempContext.QueryInterface <ID3D11DeviceContext1>();
tempContext.Dispose();
tempDevice.Dispose();
}
if (window != null)
{
IntPtr hwnd = window.Handle;
SwapChainDescription1 swapChainDescription = new SwapChainDescription1()
{
Width = window.ClientSize.Width,
Height = window.ClientSize.Height,
Format = Format.R8G8B8A8_UNorm,
BufferCount = FrameCount,
Usage = Vortice.DXGI.Usage.RenderTargetOutput,
SampleDescription = new SampleDescription(1, 0),
Scaling = Scaling.Stretch,
SwapEffect = SwapEffect.FlipDiscard,
AlphaMode = AlphaMode.Ignore
};
SwapChainFullscreenDescription fullscreenDescription = new SwapChainFullscreenDescription
{
Windowed = true
};
SwapChain = Factory.CreateSwapChainForHwnd(Device, hwnd, swapChainDescription, fullscreenDescription);
Factory.MakeWindowAssociation(hwnd, WindowAssociationFlags.IgnoreAltEnter);
BackBufferTexture = SwapChain.GetBuffer <ID3D11Texture2D>(0);
RenderTargetView = Device.CreateRenderTargetView(BackBufferTexture);
}
else
{
// Create offscreen texture
OffscreenTexture = Device.CreateTexture2D(new Texture2DDescription(Format.R8G8B8A8_UNorm, Size.Width, Size.Height, 1, 1, BindFlags.ShaderResource | BindFlags.RenderTarget));
RenderTargetView = Device.CreateRenderTargetView(OffscreenTexture);
}
}
void EnsureDevice(IntPtr hWnd)
{
if (m_device)
{
return;
}
// D3D
Span <D3D_FEATURE_LEVEL> levels = stackalloc D3D_FEATURE_LEVEL[]
{
D3D_FEATURE_LEVEL._11_1,
D3D_FEATURE_LEVEL._11_0,
D3D_FEATURE_LEVEL._10_1,
D3D_FEATURE_LEVEL._10_0,
D3D_FEATURE_LEVEL._9_3,
D3D_FEATURE_LEVEL._9_2,
D3D_FEATURE_LEVEL._9_1
};
var flags =
D3D11_CREATE_DEVICE_FLAG._DEBUG |
D3D11_CREATE_DEVICE_FLAG._BGRA_SUPPORT;
var level = default(D3D_FEATURE_LEVEL);
d3d11.D3D11CreateDevice(
null,
D3D_DRIVER_TYPE._HARDWARE,
IntPtr.Zero,
(uint)flags,
ref MemoryMarshal.GetReference(levels),
(uint)levels.Length,
Constants.D3D11_SDK_VERSION,
out m_device,
out level,
out m_context).ThrowIfFailed();
// D2D
using (var dxgiDevice = new IDXGIDevice())
{
m_device.QueryInterface(ref IDXGIDevice.IID, out dxgiDevice.PtrForNew).ThrowIfFailed();
using (var d2dFactory = new ID2D1Factory1())
{
var factory_opt = new D2D1_FACTORY_OPTIONS
{
};
d2d1.D2D1CreateFactory(D2D1_FACTORY_TYPE._SINGLE_THREADED,
ref ID2D1Factory1.IID, ref factory_opt, out d2dFactory.PtrForNew).ThrowIfFailed();
d2dFactory.GetDesktopDpi(out float x, out float y);
// using (var d2dDevice = new ())
{
var prop = new D2D1_CREATION_PROPERTIES
{
};
d2dFactory.CreateDevice(dxgiDevice, out ID2D1Device d2dDevice).ThrowIfFailed();
using (d2dDevice)
d2dDevice.CreateDeviceContext(D2D1_DEVICE_CONTEXT_OPTIONS._NONE, out m_d2dContext).ThrowIfFailed();
}
}
// SWAPChain
// using (var adapter = new ())
{
dxgiDevice.GetAdapter(out IDXGIAdapter adapter).ThrowIfFailed();
using (adapter)
using (var dxgiFactory = new IDXGIFactory2())
{
adapter.GetParent(ref IDXGIFactory2.IID, out dxgiFactory.PtrForNew).ThrowIfFailed();
var swapChainDesc = new DXGI_SWAP_CHAIN_DESC1
{
Width = 0,
Height = 0,
Format = DXGI_FORMAT._B8G8R8A8_UNORM,
Stereo = 0
};
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.BufferUsage = DXGI_USAGE._RENDER_TARGET_OUTPUT;
swapChainDesc.BufferCount = 2;
//swapChainDesc.Scaling = DXGI_SCALING_NONE;
swapChainDesc.Scaling = DXGI_SCALING._STRETCH;
//swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT._DISCARD;
swapChainDesc.AlphaMode = DXGI_ALPHA_MODE._UNSPECIFIED;
var fs = new DXGI_SWAP_CHAIN_FULLSCREEN_DESC
{
Windowed = 1,
};
dxgiFactory.CreateSwapChainForHwnd(
dxgiDevice,
hWnd,
ref swapChainDesc,
ref fs,
null,
out m_swapchain).ThrowIfFailed();
Console.Write("CreateSwapchain");
}
}
}
// Dwrite
dwrite.DWriteCreateFactory(DWRITE_FACTORY_TYPE._SHARED, ref IDWriteFactory.IID, out m_dwriteFactory.PtrForNew).ThrowIfFailed();
}