clGetSupportedImageFormats

Get the list of image formats supported by an OpenCL implementation.

`cl_int clGetSupportedImageFormats (`	cl_context `context`,
	cl_mem_flags `flags`,
	cl_mem_object_type `image_type`,
	cl_uint `num_entries`,
	cl_image_format `*image_formats`,
	cl_uint `*num_image_formats)`

Parameters

context: A valid OpenCL context on which the image object(s) will be created.
flags: A bit-field that is used to specify allocation and usage information about the image memory object being created and is described in the List of supported cl_mem_flags values for clCreateBuffer
image_type: Describes the image type and must be either CL_MEM_OBJECT_IMAGE2D or CL_MEM_OBJECT_IMAGE3D.
num_entries: Specifies the number of entries that can be returned in the memory location given by image_formats.
image_formats: A pointer to a memory location where the list of supported image formats are returned. Each entry describes a cl_image_format structure supported by the OpenCL implementation. If image_formats is NULL, it is ignored.
num_image_formats: The actual number of supported image formats for a specific context and values specified by flags. If num_image_formats is NULL, it is ignored.

Notes

clGetSupportedImageFormats can be used to get the list of image formats supported by an OpenCL implementation when the following information about an image memory object is specified:

Context
Image type - 2D or 3D image
Image object allocation information

The minimum list of supported image formats is given by the table below:

image_num_channels	image_channel_order	image_channel_data_type
4	CL_RGBA	CL_UNORM_INT8 CL_UNORM_INT16 CL_SIGNED_INT8 CL_SIGNED_INT16 CL_SIGNED_INT32 CL_UNSIGNED_INT8 CL_UNSIGNED_INT16 CL_UNSIGNED_INT32 CL_HALF_FLOAT CL_FLOAT
4	CL_BGRA	CL_UNORM_INT8

Errors

Returns CL_SUCCESS if the function is executed successfully, returns CL_INVALID_CONTEXT if context is not a valid context, returns CL_INVALID_VALUE if flags or image_type are not valid, or if num_entries is 0 and image_formats is not NULL.

Specification

OpenCL Specification

Also see

cl_image_format

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