/// <summary>
/// Initializes a new instance of the <see cref="Span2D{T}"/> struct wrapping a layer in a 3D array.
/// </summary>
/// <param name="array">The given 3D array to wrap.</param>
/// <param name="depth">The target layer to map within <paramref name="array"/>.</param>
/// <param name="row">The target row to map within <paramref name="array"/>.</param>
/// <param name="column">The target column to map within <paramref name="array"/>.</param>
/// <param name="height">The height to map within <paramref name="array"/>.</param>
/// <param name="width">The width to map within <paramref name="array"/>.</param>
/// <exception cref="ArrayTypeMismatchException">
/// Thrown when <paramref name="array"/> doesn't match <typeparamref name="T"/>.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">Thrown when a parameter is invalid.</exception>
public Span2D(T[,,] array, int depth, int row, int column, int height, int width)
{
if (array.IsCovariant())
{
ThrowHelper.ThrowArrayTypeMismatchException();
}
if ((uint)depth >= (uint)array.GetLength(0))
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForDepth();
}
int
rows = array.GetLength(1),
columns = array.GetLength(2);
if ((uint)row >= (uint)rows)
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForRow();
}
if ((uint)column >= (uint)columns)
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForColumn();
}
if ((uint)height > (uint)(rows - row))
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForHeight();
}
if ((uint)width > (uint)(columns - column))
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForWidth();
}
#if SPAN_RUNTIME_SUPPORT
this.span = MemoryMarshal.CreateSpan(ref array.DangerousGetReferenceAt(depth, row, column), height);
#else
this.Instance = array;
this.Offset = array.DangerousGetObjectDataByteOffset(ref array.DangerousGetReferenceAt(depth, row, column));
this.height = height;
#endif
this.width = width;
this.Stride = columns;
}
/// <summary>
/// Initializes a new instance of the <see cref="Memory2D{T}"/> struct wrapping a layer in a 3D array.
/// </summary>
/// <param name="array">The given 3D array to wrap.</param>
/// <param name="depth">The target layer to map within <paramref name="array"/>.</param>
/// <exception cref="ArrayTypeMismatchException">
/// Thrown when <paramref name="array"/> doesn't match <typeparamref name="T"/>.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">Thrown when a parameter is invalid.</exception>
public Memory2D(T[,,] array, int depth)
{
if (array.IsCovariant())
{
ThrowHelper.ThrowArrayTypeMismatchException();
}
if ((uint)depth >= (uint)array.GetLength(0))
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForDepth();
}
this.instance = array;
this.offset = array.DangerousGetObjectDataByteOffset(ref array.DangerousGetReferenceAt(depth, 0, 0));
this.height = array.GetLength(1);
this.width = array.GetLength(2);
this.pitch = 0;
}
/// <summary>
/// Initializes a new instance of the <see cref="Memory2D{T}"/> struct wrapping a layer in a 3D array.
/// </summary>
/// <param name="array">The given 3D array to wrap.</param>
/// <param name="depth">The target layer to map within <paramref name="array"/>.</param>
/// <param name="row">The target row to map within <paramref name="array"/>.</param>
/// <param name="column">The target column to map within <paramref name="array"/>.</param>
/// <param name="height">The height to map within <paramref name="array"/>.</param>
/// <param name="width">The width to map within <paramref name="array"/>.</param>
/// <exception cref="ArrayTypeMismatchException">
/// Thrown when <paramref name="array"/> doesn't match <typeparamref name="T"/>.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">Thrown when a parameter is invalid.</exception>
public Memory2D(T[,,] array, int depth, int row, int column, int height, int width)
{
if (array.IsCovariant())
{
ThrowHelper.ThrowArrayTypeMismatchException();
}
if ((uint)depth >= (uint)array.GetLength(0))
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForDepth();
}
int
rows = array.GetLength(1),
columns = array.GetLength(2);
if ((uint)row >= (uint)rows)
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForRow();
}
if ((uint)column >= (uint)columns)
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForColumn();
}
if ((uint)height > (uint)(rows - row))
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForHeight();
}
if ((uint)width > (uint)(columns - column))
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForWidth();
}
this.instance = array;
this.offset = array.DangerousGetObjectDataByteOffset(ref array.DangerousGetReferenceAt(depth, row, column));
this.height = height;
this.width = width;
this.pitch = columns - width;
}
/// <summary>
/// Initializes a new instance of the <see cref="Span2D{T}"/> struct wrapping a layer in a 3D array.
/// </summary>
/// <param name="array">The given 3D array to wrap.</param>
/// <param name="depth">The target layer to map within <paramref name="array"/>.</param>
/// <exception cref="ArrayTypeMismatchException">
/// Thrown when <paramref name="array"/> doesn't match <typeparamref name="T"/>.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">Thrown when a parameter is invalid.</exception>
public Span2D(T[,,] array, int depth)
{
if (array.IsCovariant())
{
ThrowHelper.ThrowArrayTypeMismatchException();
}
if ((uint)depth >= (uint)array.GetLength(0))
{
ThrowHelper.ThrowArgumentOutOfRangeExceptionForDepth();
}
#if SPAN_RUNTIME_SUPPORT
this.span = MemoryMarshal.CreateSpan(ref array.DangerousGetReferenceAt(depth, 0, 0), array.GetLength(1));
#else
this.Instance = array;
this.Offset = array.DangerousGetObjectDataByteOffset(ref array.DangerousGetReferenceAt(depth, 0, 0));
this.height = array.GetLength(1);
#endif
this.width = this.Stride = array.GetLength(2);
}
