clCreateEventFromGLsyncKHR - Creates an event object linked to an OpenGL sync object.
cl_event clCreateEventFromGLsyncKHR(cl_context context, GLsync sync, cl_int *errcode_ret);
An event object may be created by linking to an OpenGL sync object. Completion of such an event object is equivalent to waiting for completion of the fence command associated with the linked GL sync object.
The parameters of an event object linked to a GL sync object will return the following values when queried with clGetEventInfo(3clc):
clCreateEventFromGLsyncKHR performs an implicit clRetainEvent(3clc) on the returned event object. Creating a linked event object also places a reference on the linked GL sync object. When the event object is deleted, the reference will be removed from the GL sync object.
Events returned from clCreateEventFromGLsyncKHR may only be consumed by clEnqueueAcquireGLObjects(3clc). Passing such events to any other CL API will generate a CL_INVALID_EVENT error.
Returns a valid OpenCL event object and errcode_ret is set to CL_SUCCESS if the event object is created successfully. Otherwise, it returns a NULL value with one of the following error values returned in errcode_ret:
cl_khr_gl_event(3clc), clEnqueueAcquireGLObjects(3clc), clRetainEvent(3clc)
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- OpenCL Specification
|01/14/2021||The Khronos Group|