/// <summary>
/// Initializes a new instance of the <see cref="D3D11ShaderResourceViewDesc"/> struct.
/// </summary>
/// <param name="buffer">A buffer.</param>
/// <param name="format">The viewing format.</param>
/// <param name="firstElement">The number of bytes between the beginning of the buffer and the first element to access.</param>
/// <param name="numElements">The total number of elements in the view.</param>
/// <param name="options">The view options for a buffer.</param>
public D3D11ShaderResourceViewDesc(
D3D11Buffer buffer,
DxgiFormat format,
uint firstElement,
uint numElements,
D3D11BufferExSrvOptions options)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
this.buffer = new D3D11BufferSrv();
this.texture1D = new D3D11Texture1DSrv();
this.texture1DArray = new D3D11Texture1DArraySrv();
this.texture2D = new D3D11Texture2DSrv();
this.texture2DArray = new D3D11Texture2DArraySrv();
this.texture2DMs = new D3D11Texture2DMsSrv();
this.texture2DMsArray = new D3D11Texture2DMsArraySrv();
this.texture3D = new D3D11Texture3DSrv();
this.textureCube = new D3D11TextureCubeSrv();
this.textureCubeArray = new D3D11TextureCubeArraySrv();
this.bufferEx = new D3D11BufferExSrv();
this.format = format;
this.viewDimension = D3D11SrvDimension.BufferEx;
this.bufferEx = new D3D11BufferExSrv
{
FirstElement = firstElement,
NumElements = numElements,
Options = options
};
}
/// <summary>
/// Initializes a new instance of the <see cref="D3D11ShaderResourceViewDesc"/> struct.
/// </summary>
/// <param name="texture">A 3D texture.</param>
/// <param name="format">The viewing format.</param>
/// <param name="mostDetailedMip">The index of the most detailed mipmap level to use.</param>
/// <param name="mipLevels">The maximum number of mipmap levels for the view.</param>
public D3D11ShaderResourceViewDesc(
D3D11Texture3D texture,
DxgiFormat format,
uint mostDetailedMip,
uint mipLevels)
{
if (texture == null)
{
throw new ArgumentNullException("texture");
}
this.buffer = new D3D11BufferSrv();
this.texture1D = new D3D11Texture1DSrv();
this.texture1DArray = new D3D11Texture1DArraySrv();
this.texture2D = new D3D11Texture2DSrv();
this.texture2DArray = new D3D11Texture2DArraySrv();
this.texture2DMs = new D3D11Texture2DMsSrv();
this.texture2DMsArray = new D3D11Texture2DMsArraySrv();
this.texture3D = new D3D11Texture3DSrv();
this.textureCube = new D3D11TextureCubeSrv();
this.textureCubeArray = new D3D11TextureCubeArraySrv();
this.bufferEx = new D3D11BufferExSrv();
this.viewDimension = D3D11SrvDimension.Texture3D;
if (format == DxgiFormat.Unknown || mipLevels == uint.MaxValue)
{
var description = texture.Description;
if (format == DxgiFormat.Unknown)
{
format = description.Format;
}
if (mipLevels == uint.MaxValue)
{
mipLevels = description.MipLevels - mostDetailedMip;
}
}
this.format = format;
this.texture3D = new D3D11Texture3DSrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels
};
}
/// <summary>
/// Initializes a new instance of the <see cref="D3D11ShaderResourceViewDesc"/> struct.
/// </summary>
/// <param name="texture">A 2D texture.</param>
/// <param name="viewDimension">The resource type of the view.</param>
/// <param name="format">The viewing format.</param>
/// <param name="mostDetailedMip">The index of the most detailed mipmap level to use.</param>
/// <param name="mipLevels">The maximum number of mipmap levels for the view.</param>
/// <param name="firstArraySlice">The index of the first element to use in an array of elements.</param>
/// <param name="arraySize">The number of elements in the array.</param>
public D3D11ShaderResourceViewDesc(
D3D11Texture2D texture,
D3D11SrvDimension viewDimension,
DxgiFormat format,
uint mostDetailedMip,
uint mipLevels,
uint firstArraySlice,
uint arraySize)
{
if (texture == null)
{
throw new ArgumentNullException("texture");
}
this.buffer = new D3D11BufferSrv();
this.texture1D = new D3D11Texture1DSrv();
this.texture1DArray = new D3D11Texture1DArraySrv();
this.texture2D = new D3D11Texture2DSrv();
this.texture2DArray = new D3D11Texture2DArraySrv();
this.texture2DMs = new D3D11Texture2DMsSrv();
this.texture2DMsArray = new D3D11Texture2DMsArraySrv();
this.texture3D = new D3D11Texture3DSrv();
this.textureCube = new D3D11TextureCubeSrv();
this.textureCubeArray = new D3D11TextureCubeArraySrv();
this.bufferEx = new D3D11BufferExSrv();
this.viewDimension = viewDimension;
if (format == DxgiFormat.Unknown ||
(mipLevels == uint.MaxValue &&
viewDimension != D3D11SrvDimension.Texture2DMs &&
viewDimension != D3D11SrvDimension.Texture2DMsArray) ||
(arraySize == uint.MaxValue &&
viewDimension != D3D11SrvDimension.Texture2DArray &&
viewDimension != D3D11SrvDimension.Texture2DMsArray &&
viewDimension != D3D11SrvDimension.TextureCubeArray))
{
var description = texture.Description;
if (format == DxgiFormat.Unknown)
{
format = description.Format;
}
if (mipLevels == uint.MaxValue)
{
mipLevels = description.MipLevels - mostDetailedMip;
}
if (arraySize == uint.MaxValue)
{
arraySize = description.ArraySize - firstArraySlice;
if (viewDimension == D3D11SrvDimension.TextureCubeArray)
{
arraySize /= 6;
}
}
}
this.format = format;
switch (viewDimension)
{
case D3D11SrvDimension.Texture2D:
this.texture2D = new D3D11Texture2DSrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels
};
break;
case D3D11SrvDimension.Texture2DArray:
this.texture2DArray = new D3D11Texture2DArraySrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels,
FirstArraySlice = firstArraySlice,
ArraySize = arraySize
};
break;
case D3D11SrvDimension.Texture2DMs:
this.texture2DMs = new D3D11Texture2DMsSrv
{
};
break;
case D3D11SrvDimension.Texture2DMsArray:
this.texture2DMsArray = new D3D11Texture2DMsArraySrv
{
FirstArraySlice = firstArraySlice,
ArraySize = arraySize
};
break;
case D3D11SrvDimension.TextureCube:
this.textureCube = new D3D11TextureCubeSrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels
};
break;
case D3D11SrvDimension.TextureCubeArray:
this.textureCubeArray = new D3D11TextureCubeArraySrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels,
First2DArrayFace = firstArraySlice,
NumCubes = arraySize
};
break;
default:
throw new ArgumentOutOfRangeException("viewDimension");
}
}
/// <summary>
/// Initializes a new instance of the <see cref="D3D11ShaderResourceViewDesc"/> struct.
/// </summary>
/// <param name="viewDimension">The resource type of the view.</param>
/// <param name="format">The viewing format.</param>
/// <param name="mostDetailedMip">Index of the most detailed mipmap level to use.</param>
/// <param name="mipLevels">The maximum number of mipmap levels for the view.</param>
/// <param name="firstArraySlice">The index of the first element to use in an array of elements.</param>
/// <param name="arraySize">The number of elements in the array.</param>
/// <param name="bufferExOptions">The view options for a buffer</param>
public D3D11ShaderResourceViewDesc(
D3D11SrvDimension viewDimension,
DxgiFormat format,
uint mostDetailedMip,
uint mipLevels,
uint firstArraySlice,
uint arraySize,
D3D11BufferExSrvOptions bufferExOptions)
{
this.buffer = new D3D11BufferSrv();
this.texture1D = new D3D11Texture1DSrv();
this.texture1DArray = new D3D11Texture1DArraySrv();
this.texture2D = new D3D11Texture2DSrv();
this.texture2DArray = new D3D11Texture2DArraySrv();
this.texture2DMs = new D3D11Texture2DMsSrv();
this.texture2DMsArray = new D3D11Texture2DMsArraySrv();
this.texture3D = new D3D11Texture3DSrv();
this.textureCube = new D3D11TextureCubeSrv();
this.textureCubeArray = new D3D11TextureCubeArraySrv();
this.bufferEx = new D3D11BufferExSrv();
this.format = format;
this.viewDimension = viewDimension;
switch (viewDimension)
{
case D3D11SrvDimension.Buffer:
this.buffer = new D3D11BufferSrv
{
FirstElement = mostDetailedMip,
NumElements = mipLevels
};
break;
case D3D11SrvDimension.Texture1D:
this.texture1D = new D3D11Texture1DSrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels
};
break;
case D3D11SrvDimension.Texture1DArray:
this.texture1DArray = new D3D11Texture1DArraySrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels,
FirstArraySlice = firstArraySlice,
ArraySize = arraySize
};
break;
case D3D11SrvDimension.Texture2D:
this.texture2D = new D3D11Texture2DSrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels
};
break;
case D3D11SrvDimension.Texture2DArray:
this.texture2DArray = new D3D11Texture2DArraySrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels,
FirstArraySlice = firstArraySlice,
ArraySize = arraySize
};
break;
case D3D11SrvDimension.Texture2DMs:
this.texture2DMs = new D3D11Texture2DMsSrv
{
};
break;
case D3D11SrvDimension.Texture2DMsArray:
this.texture2DMsArray = new D3D11Texture2DMsArraySrv
{
FirstArraySlice = firstArraySlice,
ArraySize = arraySize
};
break;
case D3D11SrvDimension.Texture3D:
this.texture3D = new D3D11Texture3DSrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels
};
break;
case D3D11SrvDimension.TextureCube:
this.textureCube = new D3D11TextureCubeSrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels
};
break;
case D3D11SrvDimension.TextureCubeArray:
this.textureCubeArray = new D3D11TextureCubeArraySrv
{
MostDetailedMip = mostDetailedMip,
MipLevels = mipLevels,
First2DArrayFace = firstArraySlice,
NumCubes = arraySize
};
break;
case D3D11SrvDimension.BufferEx:
this.bufferEx = new D3D11BufferExSrv
{
FirstElement = mostDetailedMip,
NumElements = mipLevels,
Options = bufferExOptions
};
break;
default:
throw new ArgumentOutOfRangeException("viewDimension");
}
}
