public ITexture CreateTexture(int width, int height, Format format, bool createMipMaps = true)
{
const TextureViewType type = TextureViewType.ShaderResource;
var resource = (Texture2D)Create2DTexture(width, height, format, type, createMipMaps);
return(new D3D11Texture(_graphicsDevice, resource, width, height, 0, false, resource.Description.MipLevels, type));
}
public ITexture CreateRenderTarget(int width, int height, Format format)
{
const TextureViewType type = TextureViewType.RenderTarget | TextureViewType.ShaderResource;
var resource = Create2DTexture(width, height, format, type);
return(new D3D11Texture(_graphicsDevice, resource, width, height, 0, false, 1, type));
}
/// <summary>To initialize this structure with default value, use this constructor. The argument value is ignored.</summary>
/// <remarks>This is only here because C# doesn’t support parameterless constructors for structures.</remarks>
public TextureViewDesc(bool unused)
{
baseStruct = new DeviceObjectAttribs(true);
ViewType = TextureViewType.Undefined;
TextureDim = ResourceDimension.Undefined;
Format = TextureFormat.Unknown;
MostDetailedMip = 0;
NumMipLevels = 0;
FirstArraySlice = 0;
FirstDepthSlice = default(int);
AccessFlags = UavAccessFlag.Unspecified;
Flags = TextureViewFlags.None;
}
private static BindFlags TextureViewTypeToBindFlags(TextureViewType type)
{
var bindFlags = BindFlags.None;
if ((type & TextureViewType.DepthStencil) > 0)
{
bindFlags |= BindFlags.DepthStencil;
}
if ((type & TextureViewType.RenderTarget) > 0)
{
bindFlags |= BindFlags.RenderTarget;
}
if ((type & TextureViewType.ShaderResource) > 0)
{
bindFlags |= BindFlags.ShaderResource;
}
return(bindFlags);
}
public D3D11Texture(D3D11GraphicsDevice graphicsDevice, Resource nativeResource, int width, int height, int depth, bool isCube, int mipLevels, TextureViewType type)
{
_graphicsDevice = graphicsDevice;
_nativeResource = nativeResource;
View = new D3D11TextureView(graphicsDevice, _nativeResource, width, height, depth, isCube, mipLevels, type);
}
public D3D11TextureView(D3D11GraphicsDevice graphicsDevice, D3D11Resource resource, int width, int height, int depth, bool isCube, int mipLevels, TextureViewType type)
{
if (type.HasFlag(TextureViewType.RenderTarget))
{
_nativeRenderTargetView = new RenderTargetView(graphicsDevice, resource);
}
if (type.HasFlag(TextureViewType.ShaderResource))
{
var srvDescription = new ShaderResourceViewDescription();
if (depth > 0 && height > 0 && width > 0)
{
srvDescription.Format = ((Texture3D)resource).Description.Format;
srvDescription.Texture1D.MipLevels = mipLevels;
srvDescription.Dimension = ShaderResourceViewDimension.Texture3D;
}
else if (depth == 0 && height > 0 && width > 0)
{
srvDescription.Format = ((Texture2D)resource).Description.Format;
srvDescription.Texture2D.MipLevels = mipLevels;
srvDescription.Dimension = ShaderResourceViewDimension.Texture2D;
if (isCube)
{
srvDescription.Dimension = ShaderResourceViewDimension.TextureCube;
}
}
else if (depth == 0 && height == 0 && width > 0)
{
srvDescription.Format = ((Texture1D)resource).Description.Format;
srvDescription.Texture3D.MipLevels = mipLevels;
srvDescription.Dimension = ShaderResourceViewDimension.Texture1D;
}
_nativeShaderResourceView = new ShaderResourceView(graphicsDevice, resource, srvDescription);
}
if (type.HasFlag(TextureViewType.DepthStencil))
{
_nativeDepthStencilView = new DepthStencilView(graphicsDevice, resource);
}
}
