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NAME

       clGetSamplerInfo - Returns information about the sampler object.

       cl_int clGetSamplerInfo(cl_sampler sampler, cl_sampler_info param_name,
                               size_t param_value_size, void *param_value,
                               size_t *param_value_size_ret);

PARAMETERS

       sampler
           Specifies the sampler being queried.

       param_name
           Specifies the information to query. The list of supported param_name types and the
           information returned in param_value by clGetSamplerInfo is described in the table
           below.

           ┌─────────────────────────────┬──────────────────────────────────┐
           │cl_sampler_infoReturn Type and Info. returned   │
           │                             │ in param_value                   │
           ├─────────────────────────────┼──────────────────────────────────┤
           │CL_SAMPLER_REFERENCE_COUNT   │ Return type: cl_uint             │
           │                             │                                  │
           │                             │ Return the sampler reference     │
           │                             │ count. The reference count       │
           │                             │ returned should be considered    │
           │                             │ immediately stale. It is         │
           │                             │ unsuitable for general use in    │
           │                             │ applications. This feature is    │
           │                             │ provided for identifying memory  │
           │                             │ leaks.                           │
           ├─────────────────────────────┼──────────────────────────────────┤
           │CL_SAMPLER_CONTEXT           │ Return type: cl_context          │
           │                             │                                  │
           │                             │ Return the context specified     │
           │                             │ when the sampler is created.     │
           ├─────────────────────────────┼──────────────────────────────────┤
           │CL_SAMPLER_NORMALIZED_COORDS │ Return type: cl_bool             │
           │                             │                                  │
           │                             │ Return the normalized coords     │
           │                             │ value associated with sampler.   │
           ├─────────────────────────────┼──────────────────────────────────┤
           │CL_SAMPLER_ADDRESSING_MODE   │ Return type: cl_addressing_mode  │
           │                             │                                  │
           │                             │ Return the addressing mode value │
           │                             │ associated with sampler.         │
           ├─────────────────────────────┼──────────────────────────────────┤
           │CL_SAMPLER_FILTER_MODE       │ Return type: cl_filter_mode      │
           │                             │                                  │
           │                             │ Return the filter mode value     │
           │                             │ associated with sampler.         │
           └─────────────────────────────┴──────────────────────────────────┘

       param_value
           A pointer to memory where the appropriate result being queried is returned. If
           param_value is NULL, it is ignored.

        param_value_size
           Specifies the size in bytes of memory pointed to by param_value. This size must be ≥
           size of return type as described in the table above.

        param_value_size_ret
           Returns the actual size in bytes of data copied to param_value. If
           param_value_size_ret is NULL, it is ignored.

ERRORS

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

       •   CL_INVALID_VALUE if param_name is not valid, or if size in bytes specified by
           param_value_size is < size of return type as described in the table above and
           param_value is not NULL

       •   CL_INVALID_SAMPLER if   sampler is a not a valid sampler object.

       •   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.

SPECIFICATION

       OpenCL Specification[1]

SEE ALSO

       clCreateSampler(3clc), clRetainSampler(3clc), clReleaseSampler(3clc)

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 130, section 5.5.2 - Sampler Object Queries