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 VSSetConstantBuffers(this ID3D11DeviceContext context, int startSlot, ID3D11Buffer[] constantBuffers)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (constantBuffers == null)
{
throw new ArgumentNullException(nameof(constantBuffers));
}
if (constantBuffers.Length == 0)
{
throw new ArgumentException(null, nameof(constantBuffers));
}
context.VSSetConstantBuffers((uint)startSlot, constantBuffers.Length, constantBuffers);
}