Query an OpenGL memory object used to create an OpenCL memory object.

cl_int clGetGLObjectInfo ( cl_mem memobj,
  cl_gl_object_type *gl_object_type,
  GLuint *gl_object_name)



Returns the type of GL object attached to memobj and can be CL_GL_OBJECT_BUFFER, CL_GL_OBJECT_TEXTURE2D, CL_GL_OBJECT_TEXTURE3D, or CL_GL_OBJECT_RENDERBUFFER. If gl_object_type is NULL, it is ignored.


Returns the GL object name used to create memobj. If gl_object_name is NULL, it is ignored.


The OpenGL object used to create the OpenCL memory object and information about the object type i.e. whether it is a texture, renderbuffer, or buffer object can be queried using this function.


Returns CL_SUCCESS if the call was executed successfully. Otherwise, it returns one of the following errors:

  • CL_INVALID_MEM_OBJECT if memobj is not a valid OpenCL memory object
  • CL_INVALID_GL_OBJECT if there is no GL object associated with memobj.
  • CL_OUT_OF_RESOURCES if there is a failure to allocate resources required by the OpenCL implementation on the device.
  • CL_OUT_OF_HOST_MEMORY if there is a failure to allocate resources required by the OpenCL implementation on the host.


OpenCL Specification

Also see

cl_khr_gl_sharing, clGetGLTextureInfo

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