public TextureCache(ColorTextures colorTextures, RenderHost renderHost)
{
this.colorTextures = colorTextures;
this.renderHost = renderHost;
textures = new ConcurrentDictionary <string, TextureAndSRV>();
}
public Renderer(IWin32Window form, RenderHost renderHost, ColorTextures colorTextures, TextureCache textureCache)
{
this.renderHost = renderHost;
this.textureCache = textureCache;
this.colorTextures = colorTextures;
sceneElements = new List <SceneElement>();
// SwapChain description
var desc = new SwapChainDescription()
{
BufferCount = 1,
ModeDescription = new ModeDescription(100, 100, new Rational(60, 1), Format.R8G8B8A8_UNorm),
IsWindowed = true,
OutputHandle = form.Handle,
SampleDescription = new SampleDescription(1, 0),
SwapEffect = SwapEffect.Discard,
Usage = Usage.RenderTargetOutput
};
#if DEBUG
var flag = DeviceCreationFlags.Debug;
#else
var flag = DeviceCreationFlags.None;
#endif
// Create Device and SwapChain
Device.CreateWithSwapChain(DriverType.Hardware, flag | DeviceCreationFlags.BgraSupport, desc, out device, out swapChain);
immediateContext = device.ImmediateContext;
// Initialize helper classes
colorTextures.Initialize(device);
textureCache.Initialize(device);
// Load the Vertex and Pixel shaders
ShaderBytecode vertexShaderByteCode;
using (var stream = new MemoryStream(Resources.vs)) {
vertexShaderByteCode = ShaderBytecode.FromStream(stream);
vertexShader = new VertexShader(device, vertexShaderByteCode);
}
immediateContext.VertexShader.Set(vertexShader);
ShaderBytecode pixelShaderByteCode;
using (var stream = new MemoryStream(Resources.ps)) {
pixelShaderByteCode = ShaderBytecode.FromStream(stream);
pixelShader = new PixelShader(device, pixelShaderByteCode);
}
immediateContext.PixelShader.Set(pixelShader);
// Create the input layout for the COMPLEX vertex
inputLayout = new InputLayout(device, ShaderSignature.GetInputSignature(vertexShaderByteCode), new[] {
new InputElement("POSITION", 0, Format.R32G32B32A32_Float, 0, 0),
new InputElement("TEXCOORD", 0, Format.R32G32_Float, 16, 0)
});
immediateContext.InputAssembler.InputLayout = inputLayout;
immediateContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
// Release the bytecode
vertexShaderByteCode.Dispose();
pixelShaderByteCode.Dispose();
// Create Constant Buffer
vertexShaderPerFrameConstantBuffer = new Buffer(device, Utilities.SizeOf <Matrix>(), ResourceUsage.Default, BindFlags.ConstantBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
immediateContext.VertexShader.SetConstantBuffer(0, vertexShaderPerFrameConstantBuffer);
// Create the default texture sampler
textureSamplerWrap = new SamplerState(device, new SamplerStateDescription {
Filter = Filter.MinMagMipPoint,
AddressU = TextureAddressMode.Wrap,
AddressV = TextureAddressMode.Wrap,
AddressW = TextureAddressMode.Wrap,
BorderColor = new Color4(0.0f, 0.0f, 0.0f, 0.0f),
ComparisonFunction = Comparison.Always,
MaximumAnisotropy = 16,
MipLodBias = 0,
MinimumLod = 0,
MaximumLod = 3.402823466e+38f//D3D11_FLOAT32_MAX
});
textureSamplerBorder = new SamplerState(device, new SamplerStateDescription {
Filter = Filter.MinMagMipPoint,
AddressU = TextureAddressMode.Border,
AddressV = TextureAddressMode.Border,
AddressW = TextureAddressMode.Border,
BorderColor = new Color4(0.0f, 0.0f, 0.0f, 0.0f),
ComparisonFunction = Comparison.Always,
MaximumAnisotropy = 16,
MipLodBias = 0,
MinimumLod = 0,
MaximumLod = 3.402823466e+38f//D3D11_FLOAT32_MAX
});
// Prepare the camera
Camera = new Camera();
// Create the depth stencil state
depthStencilState = new DepthStencilState(device, new DepthStencilStateDescription {
IsDepthEnabled = true,
DepthWriteMask = DepthWriteMask.All,
DepthComparison = Comparison.GreaterEqual,
IsStencilEnabled = false,
StencilReadMask = 0xff, //D3D11_DEFAULT_STENCIL_READ_MASK
StencilWriteMask = 0xff, //D3D11_DEFAULT_STENCIL_WRITE_MASK
FrontFace = new DepthStencilOperationDescription {
DepthFailOperation = StencilOperation.Keep,
FailOperation = StencilOperation.Keep,
PassOperation = StencilOperation.Replace,
Comparison = Comparison.Always
},
BackFace = new DepthStencilOperationDescription {
DepthFailOperation = StencilOperation.Keep,
FailOperation = StencilOperation.Keep,
PassOperation = StencilOperation.Replace,
Comparison = Comparison.Always
}
});
// Create the raster state
defaultRastState = new RasterizerState(device, new RasterizerStateDescription {
IsAntialiasedLineEnabled = false,
CullMode = CullMode.Back,
DepthBias = 0,
DepthBiasClamp = 0.0f,
IsDepthClipEnabled = true,
FillMode = FillMode.Solid,
IsFrontCounterClockwise = false,
IsMultisampleEnabled = true,
IsScissorEnabled = false,
SlopeScaledDepthBias = 0
});
wireframeOverlayRastState = new RasterizerState(device, new RasterizerStateDescription {
IsAntialiasedLineEnabled = false,
CullMode = CullMode.Back,
DepthBias = (int)(Math.Pow(2.0, 23.0) / 1000),
DepthBiasClamp = 0.001f,
IsDepthClipEnabled = true,
FillMode = FillMode.Wireframe,
IsFrontCounterClockwise = false,
IsMultisampleEnabled = true,
IsScissorEnabled = false,
SlopeScaledDepthBias = 0
});
// Create the blend state
var blendDesc = new BlendStateDescription {
AlphaToCoverageEnable = false,
IndependentBlendEnable = false
};
for (var i = 0; i < 8; ++i)
{
blendDesc.RenderTarget[i].IsBlendEnabled = true;
blendDesc.RenderTarget[i].BlendOperation = BlendOperation.Add;
blendDesc.RenderTarget[i].AlphaBlendOperation = BlendOperation.Add;
blendDesc.RenderTarget[i].DestinationBlend = BlendOption.InverseSourceAlpha;
blendDesc.RenderTarget[i].DestinationAlphaBlend = BlendOption.One;
blendDesc.RenderTarget[i].RenderTargetWriteMask = ColorWriteMaskFlags.All;
blendDesc.RenderTarget[i].SourceBlend = BlendOption.SourceAlpha;
blendDesc.RenderTarget[i].SourceAlphaBlend = BlendOption.One;
}
blendState = new BlendState(device, blendDesc);
// Prepare the stages that don't change per frame
immediateContext.OutputMerger.SetDepthStencilState(depthStencilState);
immediateContext.OutputMerger.SetBlendState(blendState);
immediateContext.PixelShader.SetSampler(0, textureSamplerWrap);
}