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();
}