/// <summary>
/// Initializes a new instance of the <see cref="UnorderedAccessViewDescription1"/> struct.
/// </summary>
/// <param name="texture"></param>
/// <param name="viewDimension"></param>
/// <param name="format"></param>
/// <param name="mipSlice"></param>
/// <param name="firstWSlice"></param>
/// <param name="wSize"></param>
public UnorderedAccessViewDescription1(
ID3D11Texture3D texture,
UnorderedAccessViewDimension viewDimension,
Format format = Format.Unknown,
int mipSlice = 0,
int firstWSlice = 0,
int wSize = -1) : this()
{
ViewDimension = viewDimension;
if (format == Format.Unknown || wSize == -1)
{
var textureDesc = texture.Description;
if (format == Format.Unknown)
{
format = textureDesc.Format;
}
if (wSize == -1)
{
wSize = textureDesc.Depth - firstWSlice;
}
}
Format = format;
Texture3D.MipSlice = mipSlice;
Texture3D.FirstWSlice = firstWSlice;
Texture3D.WSize = wSize;
}
/// <summary>
/// Initializes a new instance of the <see cref="UnorderedAccessViewDescription1"/> struct.
/// </summary>
/// <param name="viewDimension">The <see cref="UnorderedAccessViewDimension"/></param>
/// <param name="format">The <see cref="DXGI.Format"/> to use or <see cref="Format.Unknown"/>.</param>
/// <param name="mipSlice">The index of the mipmap level to use mip slice or FirstElement for BUFFER.</param>
/// <param name="firstArraySlice">The index of the first texture to use in an array of textures or NumElements for BUFFER or FirstWSlice for TEXTURE3D.</param>
/// <param name="arraySize">Number of textures in the array or WSize for TEXTURE3D.</param>
/// <param name="flags"><see cref="BufferUnorderedAccessViewFlag"/> options flags for the resource.</param>
/// <param name="planeSlice"></param>
public UnorderedAccessViewDescription1(
UnorderedAccessViewDimension viewDimension,
Format format = Format.Unknown,
int mipSlice = 0,
int firstArraySlice = 0,
int arraySize = -1,
BufferUnorderedAccessViewFlag flags = BufferUnorderedAccessViewFlag.None,
int planeSlice = 0) : this()
{
Format = format;
ViewDimension = viewDimension;
switch (viewDimension)
{
case UnorderedAccessViewDimension.Buffer:
Buffer.FirstElement = mipSlice;
Buffer.NumElements = firstArraySlice;
Buffer.Flags = flags;
break;
case UnorderedAccessViewDimension.Texture1D:
Texture1D.MipSlice = mipSlice;
break;
case UnorderedAccessViewDimension.Texture1DArray:
Texture1DArray.MipSlice = mipSlice;
Texture1DArray.FirstArraySlice = firstArraySlice;
Texture1DArray.ArraySize = arraySize;
break;
case UnorderedAccessViewDimension.Texture2D:
Texture2D.MipSlice = mipSlice;
Texture2D.PlaneSlice = planeSlice;
break;
case UnorderedAccessViewDimension.Texture2DArray:
Texture2DArray.MipSlice = mipSlice;
Texture2DArray.FirstArraySlice = firstArraySlice;
Texture2DArray.ArraySize = arraySize;
Texture2DArray.PlaneSlice = planeSlice;
break;
case UnorderedAccessViewDimension.Texture3D:
Texture3D.MipSlice = mipSlice;
Texture3D.FirstWSlice = firstArraySlice;
Texture3D.WSize = arraySize;
break;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="UnorderedAccessViewDescription1"/> struct.
/// </summary>
/// <param name="texture"></param>
/// <param name="viewDimension"></param>
/// <param name="format"></param>
/// <param name="mipSlice"></param>
/// <param name="firstArraySlice"></param>
/// <param name="arraySize"></param>
/// <param name="planeSlice"></param>
public UnorderedAccessViewDescription1(
ID3D11Texture2D texture,
UnorderedAccessViewDimension viewDimension,
Format format = Format.Unknown,
int mipSlice = 0,
int firstArraySlice = 0,
int arraySize = -1,
int planeSlice = 0) : this()
{
ViewDimension = viewDimension;
if (format == Format.Unknown ||
(-1 == arraySize && (viewDimension == UnorderedAccessViewDimension.Texture2DArray)))
{
var textureDesc = texture.Description;
if (format == Format.Unknown)
{
format = textureDesc.Format;
}
if (arraySize == -1)
{
arraySize = textureDesc.ArraySize - firstArraySlice;
}
}
Format = format;
switch (viewDimension)
{
case UnorderedAccessViewDimension.Texture2D:
Texture2D.MipSlice = mipSlice;
Texture2D.PlaneSlice = planeSlice;
break;
case UnorderedAccessViewDimension.Texture2DArray:
Texture2DArray.MipSlice = mipSlice;
Texture2DArray.FirstArraySlice = firstArraySlice;
Texture2DArray.ArraySize = arraySize;
Texture2DArray.PlaneSlice = planeSlice;
break;
}
}
public static UnorderedAccessView CreateUnorderedAccessView(Device device, Resource resource, Format format, UnorderedAccessViewDimension viewDimension, int firstElement, int numElements, UnorderedAccessViewBufferFlags flags, int mipSlice)
{
UnorderedAccessViewDescription uavd = new UnorderedAccessViewDescription();
uavd.Format = format;
uavd.Dimension = viewDimension;
switch (viewDimension)
{
case UnorderedAccessViewDimension.Texture1D:
uavd.Texture1D.MipSlice = mipSlice;
break;
case UnorderedAccessViewDimension.Texture1DArray:
uavd.Texture1DArray.MipSlice = mipSlice;
uavd.Texture1DArray.ArraySize = numElements;
uavd.Texture1DArray.FirstArraySlice = firstElement;
break;
case UnorderedAccessViewDimension.Texture2D:
uavd.Texture2D.MipSlice = mipSlice;
break;
case UnorderedAccessViewDimension.Texture2DArray:
uavd.Texture2DArray.MipSlice = mipSlice;
uavd.Texture2DArray.ArraySize = numElements;
uavd.Texture2DArray.FirstArraySlice = firstElement;
break;
case UnorderedAccessViewDimension.Texture3D:
uavd.Texture3D.MipSlice = mipSlice;
uavd.Texture3D.WSize = numElements;
uavd.Texture3D.FirstWSlice = firstElement;
break;
case UnorderedAccessViewDimension.Buffer:
uavd.Buffer.ElementCount = numElements;
uavd.Buffer.FirstElement = firstElement;
uavd.Buffer.Flags = flags;
break;
case UnorderedAccessViewDimension.Unknown:
default:
return(null);
}
var uav = new UnorderedAccessView(device, resource, uavd);
return(uav);
}