func CLEnqueueCopyBuffer(command_queue CL_command_queue,
src_buffer CL_mem,
dst_buffer CL_mem,
src_offset CL_size_t,
dst_offset CL_size_t,
cb CL_size_t,
num_events_in_wait_list CL_uint,
event_wait_list []CL_event,
event *CL_event) CL_int {
if (num_events_in_wait_list == 0 && event_wait_list != nil) ||
(num_events_in_wait_list != 0 && event_wait_list == nil) ||
int(num_events_in_wait_list) != len(event_wait_list) {
return CL_INVALID_EVENT_WAIT_LIST
}
var c_event C.cl_event
var c_errcode_ret C.cl_int
if num_events_in_wait_list != 0 {
var c_event_wait_list []C.cl_event
c_event_wait_list = make([]C.cl_event, num_events_in_wait_list)
for i := 0; i < int(num_events_in_wait_list); i++ {
c_event_wait_list[i] = event_wait_list[i].cl_event
}
c_errcode_ret = C.clEnqueueCopyBuffer(command_queue.cl_command_queue,
src_buffer.cl_mem,
dst_buffer.cl_mem,
C.size_t(src_offset),
C.size_t(dst_offset),
C.size_t(cb),
C.cl_uint(num_events_in_wait_list),
&c_event_wait_list[0],
&c_event)
} else {
c_errcode_ret = C.clEnqueueCopyBuffer(command_queue.cl_command_queue,
src_buffer.cl_mem,
dst_buffer.cl_mem,
C.size_t(src_offset),
C.size_t(dst_offset),
C.size_t(cb),
0,
nil,
&c_event)
}
if event != nil {
event.cl_event = c_event
}
return CL_int(c_errcode_ret)
}
// see https://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html
func EnqueueCopyBuffer(cq CommandQueue, src_buffer Mem, dst_buffer Mem, src_offset uint64, dst_offset uint64, size uint64, num_events_in_wait_list uint32, event_wait_list *Event, event *Event) ErrorCode {
return ErrorCode(C.clEnqueueCopyBuffer(cq, src_buffer, dst_buffer, C.size_t(src_offset), C.size_t(dst_offset), C.size_t(size), C.cl_uint(num_events_in_wait_list), (*C.cl_event)(unsafe.Pointer(event_wait_list)), (*C.cl_event)(unsafe.Pointer(event))))
}
// Enqueues a command to copy a buffer object to another buffer object.
func (q *CommandQueue) EnqueueCopyBuffer(srcBuffer, dstBuffer *MemObject, srcOffset, dstOffset, byteCount int, eventWaitList []*Event) (*Event, error) {
var event C.cl_event
err := toError(C.clEnqueueCopyBuffer(q.clQueue, srcBuffer.clMem, dstBuffer.clMem, C.size_t(srcOffset), C.size_t(dstOffset), C.size_t(byteCount), C.cl_uint(len(eventWaitList)), eventListPtr(eventWaitList), &event))
return newEvent(event), err
}