Class BufferGL

include/internal/CL/cl.hpp:3461–3546

! \brief Class interface for GL Buffer Memory Objects. * * This is provided to facilitate interoperability with OpenGL. * * See Memory for details about copy semantics, etc. * * \see Memory */

 *  \see Memory
 */
class BufferGL : public Buffer
{
public:
    /*! \brief Constructs a BufferGL in a specified context, from a given
     *         GL buffer.
     *
     *  Wraps clCreateFromGLBuffer().
     */
    BufferGL(
        const Context& context,
        cl_mem_flags flags,
        cl_GLuint bufobj,
        cl_int * err = NULL)
    {
        cl_int error;
        object_ = ::clCreateFromGLBuffer(
            context(),
            flags,
            bufobj,
            &error);

        detail::errHandler(error, __CREATE_GL_BUFFER_ERR);
        if (err != NULL) {
            *err = error;
        }
    }

    //! \brief Default constructor - initializes to NULL.
    BufferGL() : Buffer() { }

    /*! \brief Constructor from cl_mem - takes ownership.
     *
     *  See Memory for further details.
     */
    __CL_EXPLICIT_CONSTRUCTORS BufferGL(const cl_mem& buffer) : Buffer(buffer) { }

    /*! \brief Assignment from cl_mem - performs shallow copy.
     *
     *  See Memory for further details.
     */
    BufferGL& operator = (const cl_mem& rhs)
    {
        Buffer::operator=(rhs);
        return *this;
    }

    /*! \brief Copy constructor to forward copy to the superclass correctly.
    * Required for MSVC.
    */
    BufferGL(const BufferGL& buf) : Buffer(buf) {}

    /*! \brief Copy assignment to forward copy to the superclass correctly.
    * Required for MSVC.
    */
    BufferGL& operator = (const BufferGL &buf)
    {
        Buffer::operator=(buf);
        return *this;