Creating subbuffer objects

There may be situations when you may want to create a subbuffer out of the existing buffer object. For this purpose OpenCL provides the API.

cl_mem clCreateSubBuffer (cl_mem buffer,cl_mem_flags flags,cl_buffer_create_type buffer_create_type,const void *buffer_create_info,cl_int *errcode_ret)

The clCreateSubBuffer function can be used to create a new partial buffer object (referred to as a subbuffer object) from an existing OpenCL cl_mem buffer object.

Parameter name	Description
buffer	Must be a valid buffer object created using the clCreateBuffer API and cannot itself be a subbuffer object.
flags	This parameter takes the same values as described in the table of cl_mem_flags shown earlier. The values taken by the flags variable should not get into any mutual exclusion condition with the flags of the original buffer. For example, if the original cl_mem object buffer is created with CL_MEM_HOST_WRITE_ONLY and the flag specified is CL_MEM_HOST_READ_ONLY, then the...