public static extern IntPtr CreateSubBuffer(
[In] IntPtr memoryObject,
[In][MarshalAs(UnmanagedType.U8)] MemoryFlag flags,
[In][MarshalAs(UnmanagedType.U4)] BufferCreateType bufferCreateType,
[In] IntPtr bufferCreateInformation,
[Out][MarshalAs(UnmanagedType.I4)] out Result errorCode
);
public IntPtr clCreateSubBuffer(IntPtr buffer, MemoryFlags flags, BufferCreateType bufferCreateType, IntPtr bufferCreateInfo,
out OpenClErrorCode errorCode)
{
errorCode = clCreateSubBufferErrorCode ?? OpenClErrorCode.Success;
if (errorCode == OpenClErrorCode.Success)
{
var id = clCreateSubBufferResult ?? new IntPtr(1);
var regionObject = Marshal.PtrToStructure <BufferRegion>(bufferCreateInfo);
const MemoryFlags memMask = MemoryFlags.AllocHostPointer | MemoryFlags.UseHostPointer | MemoryFlags.CopyHostPointer;
var parent = FakeMemoryObjects[buffer];
var validFlags = (parent.Flags & (memMask)) | flags;
FakeMemoryObjects[id] = new FakeMemoryObject(regionObject.Size, validFlags, parent.HostPointer);
return(id);
}
return(IntPtr.Zero);
}
IntPtr IBufferApi.clCreateSubBuffer(IntPtr buffer, MemoryFlags flags, BufferCreateType bufferCreateType, IntPtr bufferCreateInfo,
out OpenClErrorCode errorCode)
{
return(clCreateSubBuffer(buffer, flags, bufferCreateType, bufferCreateInfo, out errorCode));
}
public static extern IntPtr clCreateSubBuffer(IntPtr buffer, MemoryFlags flags,
BufferCreateType bufferCreateType, IntPtr bufferCreateInfo,
out OpenClErrorCode errorCode);
internal static extern cl_mem clCreateSubBuffer(cl_mem buffer, cl_mem_flags flags, BufferCreateType buffer_create_type, void *buffer_create_info, out ErrorCode errcode_ret);
