/// <summary>
/// Creates a new <see cref="ComputeBuffer{T}"/>.
/// </summary>
/// <param name="context"> A <see cref="ComputeContext"/> used to create the <see cref="ComputeBuffer{T}"/>. </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="count"> The number of elements of the <see cref="ComputeBuffer{T}"/>. </param>
/// <param name="dataPtr"> A pointer to the data for the <see cref="ComputeBuffer{T}"/>. </param>
public ComputeBuffer(ComputeContext context, ComputeMemoryFlags flags, long count, IntPtr dataPtr)
: base(context, flags)
{
var size = ComputeTools.SizeOf <T>() * count;
Handle = CL12.CreateBuffer(context.Handle, flags, new IntPtr(size), dataPtr, out var error);
ComputeException.ThrowOnError(error);
Init(size, count);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Creates a new <see cref="ComputeBuffer{T}"/>. </summary>
///
/// <param name="context"> A <see cref="ComputeContext"/> used to create the
/// <see cref="ComputeBuffer{T}"/>. </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="count"> The number of elements of the <see cref="ComputeBuffer{T}"/>. </param>
/// <param name="dataPtr"> A pointer to the data for the <see cref="ComputeBuffer{T}"/>. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
public ComputeBuffer(ComputeContext context, ComputeMemoryFlags flags, long count, IntPtr dataPtr)
: base(context, flags)
{
ComputeErrorCode error = ComputeErrorCode.Success;
Handle = CL12.CreateBuffer(context.Handle, flags, new IntPtr(Marshal.SizeOf(typeof(T)) * count), dataPtr, out error);
ComputeException.ThrowOnError(error);
Init();
}
public XArrayMemory(ComputeContext context, ComputeMemoryFlags flags, XArray obj) : base(context, flags)
{
var hostPtr = IntPtr.Zero;
if ((flags & (ComputeMemoryFlags.CopyHostPointer | ComputeMemoryFlags.UseHostPointer)) != ComputeMemoryFlags.None)
{
hostPtr = obj.NativePtr;
}
ComputeErrorCode error = ComputeErrorCode.Success;
var handle = CL12.CreateBuffer(context.Handle, flags, new IntPtr(obj.Count), hostPtr, out error);
this.Size = obj.Count;
this.Handle = handle;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Creates a new <see cref="ComputeBuffer{T}"/>. </summary>
///
/// <remarks>
/// Note, that <paramref name="data"/> cannot be an "immediate" parameter, i.e.: <c>new
/// T[100]</c>, because it could be quickly collected by the GC causing Cloo to send and invalid
/// reference to OpenCL.
/// </remarks>
///
/// <param name="context"> A <see cref="ComputeContext"/> used to create the
/// <see cref="ComputeBuffer{T}"/>. </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="data"> The data for the <see cref="ComputeBuffer{T}"/>. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
public ComputeBuffer(ComputeContext context, ComputeMemoryFlags flags, T[] data)
: base(context, flags)
{
GCHandle dataPtr = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
ComputeErrorCode error = ComputeErrorCode.Success;
Handle = CL12.CreateBuffer(context.Handle, flags, new IntPtr(Marshal.SizeOf(typeof(T)) * data.Length), dataPtr.AddrOfPinnedObject(), out error);
ComputeException.ThrowOnError(error);
}
finally
{
dataPtr.Free();
}
Init();
}
public GenericArrayMemory(ComputeContext context, ComputeMemoryFlags flags, object obj) : base(context, flags)
{
Array array = (Array)obj;
if (array.Length == 0)
{
return;
}
int size = Marshal.SizeOf(array.GetValue(0).GetType()) * array.Length;
var datagch = GCHandle.Alloc(obj, GCHandleType.Pinned);
ComputeErrorCode error = ComputeErrorCode.Success;
var handle = CL12.CreateBuffer(context.Handle, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.CopyHostPointer, new IntPtr(size), datagch.AddrOfPinnedObject(), out error);
this.Size = size;
this.Handle = handle;
}
/// <summary>
/// Creates a new <see cref="ComputeBuffer{T}"/>.
/// </summary>
/// <param name="context"> A <see cref="ComputeContext"/> used to create the <see cref="ComputeBuffer{T}"/>. </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="data"> The data for the <see cref="ComputeBuffer{T}"/>. </param>
/// <remarks> Note, that <paramref name="data"/> cannot be an "immediate" parameter, i.e.: <c>new T[100]</c>, because it could be quickly collected by the GC causing Amplifier.OpenCL.Cloo to send and invalid reference to OpenCL. </remarks>
public ComputeBuffer(ComputeContext context, ComputeMemoryFlags flags, T[] data)
: base(context, flags)
{
var size = ComputeTools.SizeOf <T>() * data.Length;
GCHandle dataPtr = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
Handle = CL12.CreateBuffer(context.Handle, flags, new IntPtr(size), dataPtr.AddrOfPinnedObject(), out var error);
ComputeException.ThrowOnError(error);
}
finally
{
dataPtr.Free();
}
Init(size, data.Length);
}
public GenericArrayMemory(ComputeContext context, ComputeMemoryFlags flags, Array array) : base(context, flags)
{
if (array.Length == 0)
{
return;
}
int size = Marshal.SizeOf(array.GetValue(0).GetType()) * array.Length;
var hostPtr = IntPtr.Zero;
if ((flags & (ComputeMemoryFlags.CopyHostPointer | ComputeMemoryFlags.UseHostPointer)) != ComputeMemoryFlags.None)
{
var datagch = GCHandle.Alloc(array, GCHandleType.Pinned);
hostPtr = datagch.AddrOfPinnedObject();
}
ComputeErrorCode error = ComputeErrorCode.Success;
var handle = CL12.CreateBuffer(context.Handle, flags, new IntPtr(size), hostPtr, out error);
this.Size = size;
this.Handle = handle;
}
