clEnqueueReleaseD3D10ObjectsKHR

Release OpenCL memory objects that have been created from Direct3D 10 resources.

cl_int clEnqueueReleaseD3D10ObjectsKHR( cl_command_queue  command_queue,
  cl_uint  num_objects,
  const cl_mem *mem_objects,
  cl_uint num_events_in_wait_list,
  const cl_event *event_wait_list ,
  cl_event *event)

Parameters

command_queue

The Direct3D 10 objects are released by the OpenCL context.

num_objects

The number of memory objects to be released in mem_objects.

mem_objects

A pointer to a list of OpenCL memory objects that were created from Direct3D 10 resources.

num_events_in_wait_list, event_wait_list

Specify events that need to complete before this particular command can be executed. If event_wait_list is NULL, then this particular command does not wait on any event to complete. If event_wait_list is NULL, num_events_in_wait_list must be 0. If event_wait_list is not NULL, the list of events pointed to by event_wait_list must be valid and num_events_in_wait_list must be greater than 0. The events specified in event returns an event object that identifies this particular command and can be used to query or queue a wait for this particular command to complete. event can be NULL in which case it will not be possible for the application to query the status of this command or queue a wait for this command to complete.

event

An event object that identifies this particular command and can be used to query or queue a wait for this particular command to complete. event can be NULL in which case it will not be possible for the application to query the status of this command or queue a wait for this command to complete.

Notes

The Direct3D 10 objects are released by the OpenCL context associated with command_queue.

OpenCL memory objects created from Direct3D 10 resources which have been acquired by OpenCL must be released by OpenCL before they may be accessed by Direct3D 10. Accessing a Direct3D 10 resource while its corresponding OpenCL memory object is acquired is in error and will result in undefined behavior, including but not limited to possible OpenCL errors, data corruption, and program termination.

clEnqueueReleaseD3D10ObjectsKHR provides the synchronization guarantee that any calls to Direct3D 10 made after the call to clEnqueueReleaseD3D10ObjectsKHR will not start executing until after all events in event_wait_list are complete and all work already submitted to command_queue completes execution.

Errors

Returns CL_SUCCESS returns CL_SUCCESS if the function is executed successfully. If <num_objects> is 0 and <mem_objects> is NULL then the function does nothing and returns CL_SUCCESS. Otherwise it returns one of the following errors:

  • CL_INVALID_VALUE if num_objects is zero and mem_objects is not a NULL value or if num_objects > 0 and mem_objects is NULL.
  • CL_INVALID_MEM_OBJECT if memory objects in mem_objects are not valid OpenCL memory objects or if memory objects in mem_objects have not been created from Direct3D 10 resources.
  • CL_INVALID_COMMAND_QUEUE if command_queue is not a valid command-queue.
  • CL_INVALID_CONTEXT if context associated with command_queue was not created from an Direct3D 10 context.
  • CL_D3D10_RESOURCE_ALREADY_ACQUIRED_KHR if memory objects in mem_objects is not have previously been acquired using clEnqueueAcquireD3D10ObjectsKHR but have not been released using clEnqueueReleaseD3D10ObjectsKHR.
  • CL_INVALID_EVENT_WAIT_LIST if event_wait_list is NULL and num_event_in_wait_list > 0, or event_wait_list is not NULL and num_event_in_wait_list is 0, or if event objects in event_wait_list are not valid events.
  • CL_OUT_OF_HOST_MEMORY if there is a failure to allocate resources required by the OpenCL implementation on the host.

Specification

OpenCL Specification

Also see

cl_khr_d3d10_sharing, clGetDeviceIDsFromD3D10KHR, clCreateFromD3D10BufferKHR, clCreateFromD3D10Texture2DKHR, clCreateFromD3D10Texture3DKHR, clEnqueueAcquireD3D10ObjectsKHR

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