NAME

       Access_Qualifiers - Access Qualifiers for image memory objects.

       __read_only __write_only read_only write_only

DESCRIPTION

       Image objects specified as arguments to a kernel can be declared to be read-only or write-only. A kernel
       cannot read from and write to the same image object. The __read_only (or read_only) and __write_only (or
       write_only) qualifiers must be used with image object arguments to declare if the image object is being
       read or written by a kernel. The default qualifier is __read_only.

NOTES

       The __read_only, __write_only, __read_write, read_only, write_only and read_write names are reserved for
       use as access qualifiers and shall not be used otherwise.

   Example
       In the example below, imageA is a read-only 2D image object, and imageB is a write-only 2D image object.

       __kernel void foo (read_only image2d_t imageA,
       write_only image2d_t imageB) { ...  }

SPECIFICATION

       OpenCL Specification[1]

AUTHORS

       The Khronos Group

COPYRIGHT

       Copyright © 2007-2011 The Khronos Group Inc.
       Permission is hereby granted, free of charge, to any person obtaining a copy of this software and/or
       associated documentation files (the "Materials"), to deal in the Materials without restriction, including
       without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       copies of the Materials, and to permit persons to whom the Materials are furnished to do so, subject to
       the condition that this copyright notice and permission notice shall be included in all copies or
       substantial portions of the Materials.

NOTES

        1. OpenCL Specification
           page 226, section 6.6 - Access Qualifiers