DepthStencil

Krythic

Aug 26th, 2020

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using SharpDX;
using SharpDX.Direct3D11;
using SharpDX.DXGI;
namespace VoidwalkerEngine.Framework.DirectX.Rendering
{
public class DepthStencil
{
public bool IsValid { get; private set; }
public string Identifier { get; set; }
public int Width { get; private set; }
public int Height { get; private set; }
private Texture2D _texture;
private DepthStencilView _depthStencilView;
private Material _material;
private SharpDX.Direct3D11.Device _device;
public DepthStencil(SharpDX.Direct3D11.Device device)
{
this._device = device;
}
public DepthStencil(SharpDX.Direct3D11.Device device, int width, int height)
{
this._device = device;
Resize(width, height);
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="flag"></param>
/// <param name="depth"></param>
/// <param name="stencil"></param>
public void Clear(DeviceContext context,
DepthStencilClearFlags flag = DepthStencilClearFlags.Depth,
float depth = 1.0f, byte stencil = 0)
{
context.ClearDepthStencilView(_depthStencilView, flag, depth, stencil);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public DepthStencilView GetView()
{
return this._depthStencilView;
}
/// <summary>
///
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="rebuild"></param>
public void Resize(int width, int height, bool rebuild = true)
{
this.Width = width;
this.Height = height;
if (rebuild)
{
Rebuild();
}
}
/// <summary>
///
/// </summary>
public void Rebuild()
{
if (this.Width <= 0 || this.Height <= 0)
{
throw new System.Exception("FrameBuffer Width and Height must be greater than 0!");
}
this.Dispose();
/**
* Create Depth Stencil
*/
this._texture = new Texture2D(_device, new Texture2DDescription()
{
Format = Format.R24G8_Typeless,
ArraySize = 1,
MipLevels = 1,
Width = this.Width,
Height = this.Height,
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default,
BindFlags = BindFlags.DepthStencil | BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None
});
this._depthStencilView = new DepthStencilView(_device, _texture, new DepthStencilViewDescription()
{
Flags = 0,
Format = Format.D24_UNorm_S8_UInt,
Dimension = DepthStencilViewDimension.Texture2D
});
SamplerState sampler = new SamplerState(_device, new SamplerStateDescription
{
Filter = Filter.MinMagPointMipLinear,
AddressU = TextureAddressMode.Wrap,
AddressV = TextureAddressMode.Wrap,
AddressW = TextureAddressMode.Wrap,
});
ShaderResourceViewDescription depthResource = new ShaderResourceViewDescription()
{
Dimension = SharpDX.Direct3D.ShaderResourceViewDimension.Texture2D,
Format = Format.R24_UNorm_X8_Typeless,
};
depthResource.Texture2D.MipLevels = 1;
_material = new Material()
{
Texture = _texture,
Device = _device,
SamplerState = sampler,
ResourceView = new ShaderResourceView(_device, _texture, depthResource)
};
}
/// <summary>
///
/// </summary>
public void Dispose()
{
if (_texture != null && _depthStencilView != null)
{
SharpDX.Utilities.Dispose(ref _texture);
SharpDX.Utilities.Dispose(ref _depthStencilView);
_material.Dispose();
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public Material GetMaterial()
{
return _material;
}
}
}

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