table of contents
CLGETIMAGEINFO(3clc) | OpenCL Manual | CLGETIMAGEINFO(3clc) |
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¶
imageSpecifies 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_info | Return Type | Info. 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_- SURFACE_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_D3D11_- SUBRESOURCE_KHR | ID3D11Resource * | If the cl_khr_d3d11_sharing(3clc) 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 GroupCOPYRIGHT¶
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
02/03/2019 | The Khronos Group |