protected DX11IndexBuffer(DxDevice device, int indicescount, SharpDX.Direct3D11.Buffer buffer)
{
this.format = SharpDX.DXGI.Format.R32_UInt;
this.device = device;
this.IndicesCount = indicescount;
this.Buffer = buffer;
}
public int[] Histogram(ShaderResourceView srcTextureSRV)
{
SharpDX.Direct3D.ShaderMacro[] defines = new[] {
new SharpDX.Direct3D.ShaderMacro("THREADSX", 32),
new SharpDX.Direct3D.ShaderMacro("THREADSY", 32),
};
using (var histogramResult = new SharpDX.Direct3D11.Buffer(_game.DeviceContext.Device,
new BufferDescription
{
BindFlags = BindFlags.UnorderedAccess,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.BufferAllowRawViews,
Usage = ResourceUsage.Default,
SizeInBytes = 256 * 4,
StructureByteStride = 4
}))
using (var histogramUAV = StaticMetods.CreateBufferUAV(_game.DeviceContext.Device, histogramResult))
{
_game.DeviceContext.ClearUnorderedAccessView(histogramUAV, Int4.Zero);
var cpuReadDesc = histogramResult.Description;
cpuReadDesc.OptionFlags = ResourceOptionFlags.None;
cpuReadDesc.BindFlags = BindFlags.None;
cpuReadDesc.CpuAccessFlags = CpuAccessFlags.Read;
cpuReadDesc.Usage = ResourceUsage.Staging;
using (var histogramCPU = new Buffer(_game.DeviceContext.Device, cpuReadDesc))
using (var srcTexture = srcTextureSRV.ResourceAs <Texture2D>())
using (var cs = StaticMetods.GetComputeShader(_game.DeviceContext.Device, "Shaders\\Filters\\LumHistorgam.hlsl", defines))
{
var desc = srcTexture.Description;
_game.DeviceContext.ComputeShader.SetShaderResource(0, srcTextureSRV);
_game.DeviceContext.ComputeShader.SetUnorderedAccessView(0, histogramUAV);
_game.DeviceContext.ComputeShader.Set(cs);
_game.DeviceContext.Dispatch((int)Math.Ceiling(desc.Width / 1024.0), (int)Math.Ceiling(desc.Height / 1.0), 1);
_game.DeviceContext.ComputeShader.SetShaderResource(0, null);
_game.DeviceContext.ComputeShader.SetUnorderedAccessView(0, null);
// Копировать результат в буффер из которого наш Процессор может читать данные.
_game.DeviceContext.CopyResource(histogramResult, histogramCPU);
return(StaticMetods.GetIntArrayFromByfferData(_game.DeviceContext, histogramCPU));
}
}
}
public ViewBuffer(SharpDX.Direct3D11.Buffer buffer, SharpDX.Direct3D11.UnorderedAccessView view)
{
Buffer = buffer;
View = view;
}
private bool InitialiseShader(Device device, IntPtr windowsHandler, string vsFileName, string psFileName)
{
try
{
vsFileName = SystemConfiguration.ShaderFilePath + vsFileName;
psFileName = SystemConfiguration.ShaderFilePath + psFileName;
var vertexShaderByteCode = ShaderBytecode.CompileFromFile(vsFileName, "TextureVertexShader", "vs_4_0", ShaderFlags.None, EffectFlags.None);
var pixelShaderByteCode = ShaderBytecode.CompileFromFile(psFileName, "TexturePixelShader", "ps_4_0", ShaderFlags.None, EffectFlags.None);
VertexShader = new VertexShader(device, vertexShaderByteCode);
PixelShader = new PixelShader(device, pixelShaderByteCode);
var inputElements = new InputElement[]
{
new InputElement()
{
SemanticName = "POSITION",
SemanticIndex = 0,
Format = SharpDX.DXGI.Format.R32G32B32_Float,
Slot = 0,
AlignedByteOffset = 0,
Classification = InputClassification.PerVertexData,
InstanceDataStepRate = 0
},
new InputElement()
{
SemanticName = "TEXCOORD",
SemanticIndex = 0,
Format = SharpDX.DXGI.Format.R32G32_Float,
Slot = 0,
AlignedByteOffset = InputElement.AppendAligned,
Classification = InputClassification.PerVertexData,
InstanceDataStepRate = 0
}
};
Layout = new InputLayout(device, ShaderSignature.GetInputSignature(vertexShaderByteCode), inputElements);
vertexShaderByteCode.Dispose();
pixelShaderByteCode.Dispose();
BufferDescription matrixBufferDescription = new BufferDescription()
{
Usage = ResourceUsage.Dynamic,
SizeInBytes = SharpDX.Utilities.SizeOf <WorldViewProjectionMatrixBuffer>(),
BindFlags = BindFlags.ConstantBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
StructureByteStride = 0
};
ConstantMatrixBuffer = new SharpDX.Direct3D11.Buffer(device, matrixBufferDescription);
var samplerDesc = new SamplerStateDescription()
{
Filter = Filter.MinMagMipLinear,
AddressU = TextureAddressMode.Wrap,
AddressV = TextureAddressMode.Wrap,
AddressW = TextureAddressMode.Wrap,
MipLodBias = 0,
MaximumAnisotropy = 1,
ComparisonFunction = Comparison.Always,
BorderColor = new Color4(0, 0, 0, 0), // Black Border.
MinimumLod = 0,
MaximumLod = float.MaxValue
};
SamplerState = new SamplerState(device, samplerDesc);
return(true);
}
catch (Exception ex)
{
return(false);
}
}
