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+//---------------------------------------------------------------------------//
+// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
+//
+// Distributed under the Boost Software License, Version 1.0
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+// See http://boostorg.github.com/compute for more information.
+//---------------------------------------------------------------------------//
+
+#ifndef BOOST_COMPUTE_INTEROP_OPENGL_OPENGL_RENDERBUFFER_HPP
+#define BOOST_COMPUTE_INTEROP_OPENGL_OPENGL_RENDERBUFFER_HPP
+
+#include <boost/compute/image/image_object.hpp>
+#include <boost/compute/interop/opengl/gl.hpp>
+#include <boost/compute/interop/opengl/cl_gl.hpp>
+#include <boost/compute/type_traits/type_name.hpp>
+#include <boost/compute/utility/extents.hpp>
+
+namespace boost {
+namespace compute {
+
+/// \class opengl_renderbuffer
+///
+/// A OpenCL buffer for accessing an OpenGL renderbuffer object.
+class opengl_renderbuffer : public image_object
+{
+public:
+ /// Creates a null OpenGL renderbuffer object.
+ opengl_renderbuffer()
+ : image_object()
+ {
+ }
+
+ /// Creates a new OpenGL renderbuffer object for \p mem.
+ explicit opengl_renderbuffer(cl_mem mem, bool retain = true)
+ : image_object(mem, retain)
+ {
+ }
+
+ /// Creates a new OpenGL renderbuffer object in \p context for
+ /// \p renderbuffer with \p flags.
+ ///
+ /// \see_opencl_ref{clCreateFromGLRenderbuffer}
+ opengl_renderbuffer(const context &context,
+ GLuint renderbuffer,
+ cl_mem_flags flags = read_write)
+ {
+ cl_int error = 0;
+
+ m_mem = clCreateFromGLRenderbuffer(
+ context, flags, renderbuffer, &error
+ );
+
+ if(!m_mem){
+ BOOST_THROW_EXCEPTION(opencl_error(error));
+ }
+ }
+
+ /// Creates a new OpenGL renderbuffer object as a copy of \p other.
+ opengl_renderbuffer(const opengl_renderbuffer &other)
+ : image_object(other)
+ {
+ }
+
+ /// Copies the OpenGL renderbuffer object from \p other.
+ opengl_renderbuffer& operator=(const opengl_renderbuffer &other)
+ {
+ if(this != &other){
+ image_object::operator=(other);
+ }
+
+ return *this;
+ }
+
+ /// Destroys the OpenGL buffer object.
+ ~opengl_renderbuffer()
+ {
+ }
+
+ /// Returns the size (width, height) of the renderbuffer.
+ extents<2> size() const
+ {
+ extents<2> size;
+ size[0] = get_image_info<size_t>(CL_IMAGE_WIDTH);
+ size[1] = get_image_info<size_t>(CL_IMAGE_HEIGHT);
+ return size;
+ }
+
+ /// Returns the origin of the renderbuffer (\c 0, \c 0).
+ extents<2> origin() const
+ {
+ return extents<2>();
+ }
+
+ /// Returns the OpenGL memory object ID.
+ ///
+ /// \see_opencl_ref{clGetGLObjectInfo}
+ GLuint get_opengl_object() const
+ {
+ GLuint object = 0;
+ clGetGLObjectInfo(m_mem, 0, &object);
+ return object;
+ }
+
+ /// Returns the OpenGL memory object type.
+ ///
+ /// \see_opencl_ref{clGetGLObjectInfo}
+ cl_gl_object_type get_opengl_type() const
+ {
+ cl_gl_object_type type;
+ clGetGLObjectInfo(m_mem, &type, 0);
+ return type;
+ }
+};
+
+namespace detail {
+
+// set_kernel_arg() specialization for opengl_renderbuffer
+template<>
+struct set_kernel_arg<opengl_renderbuffer> : public set_kernel_arg<image_object> { };
+
+} // end detail namespace
+} // end compute namespace
+} // end boost namespace
+
+BOOST_COMPUTE_TYPE_NAME(boost::compute::opengl_renderbuffer, image2d_t)
+
+#endif // BOOST_COMPUTE_INTEROP_OPENGL_OPENGL_RENDERBUFFER_HPP