Query the OpenCL devices corresponding to a Direct3D 10 device or a DXGI device.

cl_int clGetDeviceIDsFromD3D10KHR( cl_platform_id platform,
  cl_d3d10_device_source_khr d3d_device_source,
  void *d3d_object,
  cl_d3d10_device_set_khr d3d_device_set,
  cl_uint num_entries,
  cl_device_id *devices,
  cl_uint *num_devices)



Refers to the platform ID returned by clGetPlatformIDs.


Specifies the type of d3d_object and may be one of the following:.

cl_d3d_device_source_khr Type of d3d_object
CL_D3D10_DEVICE_KHR ID3D10Device *

Specifies the object whose corresponding OpenCL devices are being queried. The type of d3d_object must be as specified in the table above.


Specifies the set of devices to return, and must be one of the following:

cl_d3d_device_set_khr Devices returned in devices
CL_PREFERRED_DEVICES_FOR_D3D10_KHR The OpenCL devices associated with the specified Direct3D object.
CL_ALL_DEVICES_FOR_D3D10_KHR All OpenCL devices which may interoperate with the specified Direct3D object. Performance of sharing data on these devices may be considerably less than on the preferred devices.

The number of cl_device entries that can be added to devices. If devices is not NULL, the num_entries must be greater than zero.


A list of OpenCL devices found. The cl_device_id values returned in devices can be used to identify a specific OpenCL device. If devices is NULL, this argument is ignored. The number of OpenCL devices returned is the mininum of the value specified by num_entries and the number of OpenCL devices corresponding to d3d_object.


The number of OpenCL devices available that correspond to d3d_object. If num_devices is NULL, this argument is ignored.


The OpenCL devices corresponding to a Direct3D 10 device may be queried. The OpenCL devices corresponding to a DXGI adapter may also be queried. The OpenCL devices corresponding to a Direct3D 10 device will be a subset of the OpenCL devices corresponding to the DXGI adapter against which the Direct3D 10 device was created.


Returns CL_SUCCESS if the function is executed successfully. Otherwise it may return:

  • CL_INVALID_PLATFORM if platform is not a valid platform.
  • CL_INVALID_VALUE if d3d_device_source is not a valid value, d3d_device_set is not a valid value, num_entries is equal to zero and devices is not NULL, or if both num_devices and devices are NULL.
  • CL_DEVICE_NOT_FOUND if no OpenCL devices that correspond to d3d_object were found.


OpenCL Specification

Also see

cl_khr_d3d10_sharing, clCreateFromD3D10BufferKHR, clCreateFromD3D10Texture2DKHR, clCreateFromD3D10Texture3DKHR, clEnqueueAcquireD3D10ObjectsKHR, clEnqueueReleaseD3D10ObjectsKHR

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