/// <summary>
/// Creates a new buffer from a specified buffer.
/// </summary>
/// <param name="buffer"> The buffer to create the buffer from. </param>
/// <param name="flags"> A bit-field that is used to specify allocation and usage information about the buffer. </param>
/// <param name="offset"> The index of the element of <paramref name="buffer"/>, where the buffer starts. </param>
/// <param name="count"> The number of elements of <paramref name="buffer"/> to include in the buffer. </param>
public ComputeSubBuffer(ComputeBuffer <T> buffer, ComputeMemoryFlags flags, long offset, long count)
: base(buffer.Context, flags)
{
SysIntX2 region = new SysIntX2(offset * Marshal.SizeOf(typeof(T)), count * Marshal.SizeOf(typeof(T)));
CL11.CreateSubBuffer(Handle, flags, ComputeBufferCreateType.Region, ref region, out ComputeErrorCode error);
ComputeException.ThrowOnError(error);
Init();
}
/// <summary>
/// Creates a new <see cref="ComputeSubBuffer{T}"/> from a specified <see cref="ComputeBuffer{T}"/>.
/// </summary>
/// <param name="buffer"> The buffer to create the <see cref="ComputeSubBuffer{T}"/> from. </param>
/// <param name="flags"> A bit-field that is used to specify allocation and usage information about the <see cref="ComputeBuffer{T}"/>. </param>
/// <param name="offset"> The index of the element of <paramref name="buffer"/>, where the <see cref="ComputeSubBuffer{T}"/> starts. </param>
/// <param name="count"> The number of elements of <paramref name="buffer"/> to include in the <see cref="ComputeSubBuffer{T}"/>. </param>
public ComputeSubBuffer(ComputeBuffer <T> buffer, ComputeMemoryFlags flags, long offset, long count)
: base(buffer.Context, flags)
{
var sizeofT = ComputeTools.SizeOf <T>();
SysIntX2 region = new SysIntX2(offset * sizeofT, count * sizeofT);
Handle = CL11.CreateSubBuffer(buffer.Handle, flags, ComputeBufferCreateType.Region, ref region, out var error);
ComputeException.ThrowOnError(error);
Init();
}
/// <summary>
///
/// </summary>
/// <param name="x2"></param>
/// <param name="z"></param>
public SysIntX3(SysIntX2 x2, long z)
: this(x2.X, x2.Y, new IntPtr(z))
{
}
/// <summary>
///
/// </summary>
/// <param name="x2"></param>
/// <param name="z"></param>
public SysIntX3(SysIntX2 x2, long z)
: this(x2.X, x2.Y, new IntPtr(z))
{
}