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NAME

       clGetImageInfo - Get information specific to an image object created with clCreateImage.

       cl_intclGetImageInfo(cl_mem image, cl_image_info param_name, size_t param_value_size,
                            void *param_value, size_t *param_value_size_ret);

PARAMETERS

        image
           Specifies the image object being queried.

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

        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
           Used to specify the size in bytes of memory pointed to by param_value. This size must
           be ≥ size of return type as described in the table below.

           ┌───────────────────────────────┬──────────────────┬───────────────────────────────────────┐
           │cl_image_infoReturn TypeInfo. returned in                     │
           │                               │                  │ param_value                           │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_FORMAT                │ cl_image_format  │ Return image format                   │
           │                               │                  │ descriptor specified                  │
           │                               │                  │ when image is created                 │
           │                               │                  │ with                                  │
           │                               │                  │ clCreateImage(3clc).                  │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_ELEMENT_SIZE          │ size_t           │ Return size of each                   │
           │                               │                  │ element of the image                  │
           │                               │                  │ memory object given by                │
           │                               │                  │ image. An element is                  │
           │                               │                  │ made up of n channels.                │
           │                               │                  │ The value of n is given               │
           │                               │                  │ in cl_image_format                    │
           │                               │                  │ descriptor.                           │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_ROW_PITCH             │ size_t           │ Return size in bytes of               │
           │                               │                  │ a row of elements of the              │
           │                               │                  │ image object given by                 │
           │                               │                  │ image.                                │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_SLICE_PITCH           │ size_t           │ Return calculated slice               │
           │                               │                  │ pitch in bytes of a 2D                │
           │                               │                  │ slice for the 3D image                │
           │                               │                  │ object or size of each                │
           │                               │                  │ image in a 1D or 2D                   │
           │                               │                  │ image array given by                  │
           │                               │                  │ image. For a 1D image,                │
           │                               │                  │ 1D image buffer and 2D                │
           │                               │                  │ image object return 0.                │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_WIDTH                 │ size_t           │ Return width of image in              │
           │                               │                  │ pixels.                               │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_HEIGHT                │ size_t           │ Return height of image                │
           │                               │                  │ in pixels. For a 1D                   │
           │                               │                  │ image, 1D image buffer                │
           │                               │                  │ and 1D image array                    │
           │                               │                  │ object, height = 0.                   │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_DEPTH                 │ size_t           │ Return depth of the                   │
           │                               │                  │ image in pixels.  For a               │
           │                               │                  │ 1D image, 1D image                    │
           │                               │                  │ buffer, 2D image or 1D                │
           │                               │                  │ and 2D image array                    │
           │                               │                  │ object, depth = 0.                    │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_ARRAY_SIZE            │ size_t           │ Return number of images               │
           │                               │                  │ in the image array.  If               │
           │                               │                  │ image is not an image                 │
           │                               │                  │ array, 0 is returned.                 │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_BUFFER                │ cl_mem           │ Return buffer object                  │
           │                               │                  │ associated with image.                │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_NUM_MIP_LEVELS        │ cl_uint          │ Return num_mip_levels                 │
           │                               │                  │ associated with image.                │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_NUM_SAMPLES           │ cl_uint          │ Return num_samples                    │
           │                               │                  │ associated with image.                │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_D3D10_SUBRESOURCE_KHR │ ID3D10Resource * │ (if the                               │
           │                               │                  │ cl_khr_d3d10_sharing(3clc)            │
           │                               │                  │ extension is enabled) If              │
           │                               │                  │ image was created using               │
           │                               │                  │ clCreateFromD3D10Texture2DKHR(3clc)   │
           │                               │                  │ or                                    │
           │                               │                  │ clCreateFromD3D10Texture3DKHR(3clc),  │
           │                               │                  │ returns the subresource               │
           │                               │                  │ argument specified when               │
           │                               │                  │ image was created.                    │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_DX9_MEDIA_PLANE_KHR   │ cl_uint          │ Returns the plane argument value      │
           │                               │                  │ specified when memobj is created      │
           │                               │                  │ using                                 │
           │                               │                  │ clCreateFromDX9MediaSurfaceKHR(3clc). │
           │                               │                  │ (If the                               │
           │                               │                  │ cl_khr_dx9_media_sharing(3clc)        │
           │                               │                  │ extension is supported)               │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_DX9_MEDIA_-           │ cl_uint          │ Returns the plane argument value      │
           │SURFACE_PLANE_KHR              │                  │ specified when memobj is created      │
           │                               │                  │ using                                 │
           │                               │                  │ clCreateFromDX9MediaSurfaceKHR(3clc). │
           │                               │                  │ (If the                               │
           │                               │                  │ cl_khr_dx9_media_sharing(3clc)        │
           │                               │                  │ extension is supported)               │
           ├───────────────────────────────┼──────────────────┼───────────────────────────────────────┤
           │CL_IMAGE_D3D11_-               │ ID3D11Resource * │ If the cl_khr_d3d11_sharing(3clc)     │
           │SUBRESOURCE_KHR                │                  │ extension is suported, If image was   │
           │                               │                  │ created using                         │
           │                               │                  │ clCreateFromD3D11Texture2DKHR(3clc),  │
           │                               │                  │ or                                    │
           │                               │                  │ clCreateFromD3D11Texture3DKHR(3clc),  │
           │                               │                  │ returns the subresource argument      │
           │                               │                  │ specified when image was created.     │
           └───────────────────────────────┴──────────────────┴───────────────────────────────────────┘

        param_value_size_ret
           Returns the actual size in bytes of data being queried by param_value. If
           param_value_size_ret is NULL, it is ignored.

NOTES

       To get information that is common to all memory objects (buffer and image objects), use
       the clGetMemObjectInfo(3clc) function.

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_MEM_OBJECT if image is a not a valid image 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.

       •   CL_INVALID_DX9_MEDIA_SURFACE_KHR if param_name is CL_IMAGE_DX9_MEDIA_PLANE_KHR and
           image was not created by the function clCreateFromDX9MediaSurfaceKHR(3clc).  (If the
           cl_khr_dx9_media_sharing(3clc) extension is supported)

       •   CL_INVALID_D3D10_RESOURCE_KHR if param_name is CL_MEM_D3D10_SUBRESOURCE_KHR and image
           was not created by the function clCreateFromD3D10Texture2DKHR(3clc) or
           clCreateFromD3D10Texture3DKHR(3clc).  (If the cl_khr_d3d10_sharing(3clc) extension is
           supported)

       •   CL_INVALID_D3D11_RESOURCE_KHR if param_name is CL_MEM_D3D11_SUBRESOURCE_KHR and image
           was not created by the function clCreateFromD3D11Texture2DKHR(3clc) or
           clCreateFromD3D11Texture3DKHR(3clc).  (If the cl_khr_d3d11_sharing(3clc) extension is
           supported)

SPECIFICATION

       OpenCL Specification[1]

SEE ALSO

       clGetMemObjectInfo(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 116, section 5.3.6 - Image Object Queries