void SetupRenderState(ImDrawDataPtr drawData, ID3D11DeviceContext ctx)
{
var viewport = new Viewport
{
Width = drawData.DisplaySize.X,
Height = drawData.DisplaySize.Y,
MinDepth = 0.0f,
MaxDepth = 1.0f,
};
ctx.RSSetViewports(viewport);
int stride = sizeof(ImDrawVert);
int offset = 0;
ctx.IASetInputLayout(inputLayout);
ctx.IASetVertexBuffers(0, 1, new[] { vertexBuffer }, new[] { stride }, new[] { offset });
ctx.IASetIndexBuffer(indexBuffer, sizeof(ImDrawIdx) == 2 ? Format.R16_UInt : Format.R32_UInt, 0);
ctx.IASetPrimitiveTopology(PrimitiveTopology.TriangleList);
ctx.VSSetShader(vertexShader);
ctx.VSSetConstantBuffers(0, constantBuffer);
ctx.PSSetShader(pixelShader);
ctx.PSSetSamplers(0, fontSampler);
ctx.GSSetShader(null);
ctx.HSSetShader(null);
ctx.DSSetShader(null);
ctx.CSSetShader(null);
ctx.OMSetBlendState(blendState);
ctx.OMSetDepthStencilState(depthStencilState);
ctx.RSSetState(rasterizerState);
}
public static void RSSetState(this ID3D11DeviceContext context, ID3D11RasterizerState state)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (state == null)
{
throw new ArgumentNullException(nameof(state));
}
context.RSSetState(state);
}
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);
}
}
}