public static void IASetInputLayout(this ID3D11DeviceContext context, ID3D11InputLayout inputLayout)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (inputLayout == null)
{
throw new ArgumentNullException(nameof(inputLayout));
}
context.IASetInputLayout(inputLayout);
}
public void GetPipelineResources(
ref BlendStateDescription blendDesc,
ref DepthStencilStateDescription dssDesc,
ref RasterizerStateDescription rasterDesc,
bool multisample,
VertexLayoutDescription[] vertexLayouts,
byte[] vsBytecode,
out ID3D11BlendState blendState,
out ID3D11DepthStencilState depthState,
out ID3D11RasterizerState rasterState,
out ID3D11InputLayout inputLayout)
{
lock (_lock)
{
blendState = GetBlendState(ref blendDesc);
depthState = GetDepthStencilState(ref dssDesc);
rasterState = GetRasterizerState(ref rasterDesc, multisample);
inputLayout = GetInputLayout(vertexLayouts, vsBytecode);
}
}
protected override void SetPipelineStateImpl(PipelineState pipelineState)
{
var pipelineStateD3D11 = (PipelineStateD3D11)pipelineState;
if (pipelineState.IsCompute)
{
var computeShader = pipelineStateD3D11.ComputeShader;
D3D11Context.CSSetShader(computeShader);
}
else
{
var blendState = pipelineStateD3D11.BlendState;
if (_boundBlendState != blendState)
{
_boundBlendState = blendState;
D3D11Context.OMSetBlendState(blendState, _boundBlendColor);
}
var depthStencilState = pipelineStateD3D11.DepthStencilState;
if (_boundDepthStencilState != depthStencilState)
{
_boundDepthStencilState = depthStencilState;
D3D11Context.OMSetDepthStencilState(depthStencilState, _boundStencilReference);
}
var rasterizerState = pipelineStateD3D11.RasterizerState;
if (_boundRasterizerState != rasterizerState)
{
_boundRasterizerState = rasterizerState;
D3D11Context.RSSetState(rasterizerState);
}
var primitiveTopology = pipelineStateD3D11.PrimitiveTopology;
if (_boundPrimitiveTopology != primitiveTopology)
{
_boundPrimitiveTopology = primitiveTopology;
D3D11Context.IASetPrimitiveTopology(primitiveTopology);
}
var inputLayout = pipelineStateD3D11.InputLayout;
if (_boundInputLayout != inputLayout)
{
_boundInputLayout = inputLayout;
D3D11Context.IASetInputLayout(_boundInputLayout);
}
var vertexShader = pipelineStateD3D11.VertexShader;
if (_boundVertexShader != vertexShader)
{
_boundVertexShader = vertexShader;
D3D11Context.VSSetShader(vertexShader);
}
var geometryShader = pipelineStateD3D11.GeometryShader;
if (_boundGeometryShader != geometryShader)
{
_boundGeometryShader = geometryShader;
D3D11Context.GSSetShader(geometryShader);
}
var hullShader = pipelineStateD3D11.HullShader;
if (_boundHullShader != hullShader)
{
_boundHullShader = hullShader;
D3D11Context.HSSetShader(hullShader);
}
var domainShader = pipelineStateD3D11.DomainShader;
if (_boundDomainShader != domainShader)
{
_boundDomainShader = domainShader;
D3D11Context.DSSetShader(domainShader);
}
var pixelShader = pipelineStateD3D11.PixelShader;
if (_boundPixelShader != pixelShader)
{
_boundPixelShader = pixelShader;
D3D11Context.PSSetShader(pixelShader);
}
}
}
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);
}
internal D3D11InputLayout(ID3D11InputLayout inputLayout)
{
this.inputLayout = inputLayout;
}
public InputLayout(ID3D11InputLayout inputLayout)
{
_inputLayout = inputLayout ?? throw new ArgumentNullException(nameof(inputLayout));
}
internal D3D11InputLayout(ID3D11InputLayout inputLayout)
{
this.inputLayout = inputLayout;
}
void CreateDeviceObjects()
{
var vertexShaderCode =
@"
cbuffer vertexBuffer : register(b0)
{
float4x4 ProjectionMatrix;
};
struct VS_INPUT
{
float2 pos : POSITION;
float4 col : COLOR0;
float2 uv : TEXCOORD0;
};
struct PS_INPUT
{
float4 pos : SV_POSITION;
float4 col : COLOR0;
float2 uv : TEXCOORD0;
};
PS_INPUT main(VS_INPUT input)
{
PS_INPUT output;
output.pos = mul(ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));
output.col = input.col;
output.uv = input.uv;
return output;
}";
Compiler.Compile(vertexShaderCode, "main", "vs", "vs_4_0", out vertexShaderBlob, out var errorBlob);
if (vertexShaderBlob == null)
{
throw new Exception("error compiling vertex shader");
}
vertexShader = device.CreateVertexShader(vertexShaderBlob.GetBytes());
var inputElements = new[]
{
new InputElementDescription("POSITION", 0, Format.R32G32_Float, 0, 0, InputClassification.PerVertexData, 0),
new InputElementDescription("TEXCOORD", 0, Format.R32G32_Float, 8, 0, InputClassification.PerVertexData, 0),
new InputElementDescription("COLOR", 0, Format.R8G8B8A8_UNorm, 16, 0, InputClassification.PerVertexData, 0),
};
inputLayout = device.CreateInputLayout(inputElements, vertexShaderBlob);
var constBufferDesc = new BufferDescription
{
SizeInBytes = VertexConstantBufferSize,
Usage = Vortice.Direct3D11.Usage.Dynamic,
BindFlags = BindFlags.ConstantBuffer,
CpuAccessFlags = CpuAccessFlags.Write
};
constantBuffer = device.CreateBuffer(constBufferDesc);
var pixelShaderCode =
@"struct PS_INPUT
{
float4 pos : SV_POSITION;
float4 col : COLOR0;
float2 uv : TEXCOORD0;
};
sampler sampler0;
Texture2D texture0;
float4 main(PS_INPUT input) : SV_Target
{
float4 out_col = input.col * texture0.Sample(sampler0, input.uv);
return out_col;
}";
Compiler.Compile(pixelShaderCode, "main", "ps", "ps_4_0", out pixelShaderBlob, out errorBlob);
if (pixelShaderBlob == null)
{
throw new Exception("error compiling pixel shader");
}
pixelShader = device.CreatePixelShader(pixelShaderBlob.GetBytes());
var blendDesc = new BlendDescription
{
AlphaToCoverageEnable = false
};
blendDesc.RenderTarget[0] = new RenderTargetBlendDescription
{
IsBlendEnabled = true,
SourceBlend = Blend.SourceAlpha,
DestinationBlend = Blend.InverseSourceAlpha,
BlendOperation = BlendOperation.Add,
SourceBlendAlpha = Blend.InverseSourceAlpha,
DestinationBlendAlpha = Blend.Zero,
BlendOperationAlpha = BlendOperation.Add,
RenderTargetWriteMask = ColorWriteEnable.All
};
blendState = device.CreateBlendState(blendDesc);
var rasterDesc = new RasterizerDescription
{
FillMode = FillMode.Solid,
CullMode = CullMode.None,
ScissorEnable = true,
DepthClipEnable = true
};
rasterizerState = device.CreateRasterizerState(rasterDesc);
var stencilOpDesc = new DepthStencilOperationDescription(StencilOperation.Keep, StencilOperation.Keep, StencilOperation.Keep, ComparisonFunction.Always);
var depthDesc = new DepthStencilDescription
{
DepthEnable = false,
DepthWriteMask = DepthWriteMask.All,
DepthFunc = ComparisonFunction.Always,
StencilEnable = false,
FrontFace = stencilOpDesc,
BackFace = stencilOpDesc
};
depthStencilState = device.CreateDepthStencilState(depthDesc);
CreateFontsTexture();
}