Provided by: opencl-1.2-man-doc_1.0~svn33624-5_all 
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_info │ Return 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