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       cl_khr_3d_image_writes - Extension to enable writes to 3D image memory objects.

       #pragma OPENCL EXTENSION cl_khr_3d_image_writes
       : enable


       OpenCL supports 2D image memory objects that can be read or written by kernels. Reads and
       writes to the same 2D image memory object are not supported in a kernel. OpenCL also
       supports reads to 3D image memory objects in kernels. Writes to a 3D image memory object
       are not supported unless the cl_khr_3d_image_writes extension is implemented. Reads and
       writes to the same 3D image memory object are not allowed in a kernel.

       An application that wants to use this extension to write to 3D image memory objects will
       need to include the #pragma OPENCL EXTENSION cl_khr_3d_image_writes : enable directive in
       the OpenCL program source.

       The write_image3d(3clc) are implemented by the cl_khr_3d_image_writes extension.


       OpenCL Specification[1]


       EXTENSION(3clc), cl_image_format(3clc), imageFunctions(3clc)


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        1. OpenCL Specification
           page 12, section 9.4 - Writing to 3D image memory objects