void GPUSort::Sort(CLBuffer &data) {
CLEventList wait;
CLEvent ev;
local_sort_kernel_->SetIntArg(0, length_);
local_sort_kernel_->SetBufferArg(1, &data);
local_sort_kernel_->SetLocalBufferArg(2, local_sort_kernel_->work_group_size() * sizeof(cl_int));
local_sort_kernel_->Run1D(length_, NULL, &ev);
CLBuffer *in = &data;
CLBuffer *out = temp_buffer_.get();
for (int len = local_sort_kernel_->work_group_size(); len < length_; len *= 2) {
wait.Clear();
wait.Add(ev);
merge_sort_pass_kernel_->SetIntArg(0, length_);
merge_sort_pass_kernel_->SetIntArg(1, len);
merge_sort_pass_kernel_->SetBufferArg(2, in);
merge_sort_pass_kernel_->SetBufferArg(3, out);
merge_sort_pass_kernel_->Run1D(length_, &wait, &ev);
swap(in, out);
}
if (in != &data) {
wait.Clear();
wait.Add(ev);
data.CopyFrom(*in, &wait, &ev);
}
ev.WaitFor();
}
XCamReturn
cl_events_wait (CLEventList &event_list)
{
#define XCAM_MAX_CL_EVENT_COUNT 256
cl_event event_ids [XCAM_MAX_CL_EVENT_COUNT];
uint32_t event_count = 0;
cl_int error_code = CL_SUCCESS;
if (event_list.empty ())
return XCAM_RETURN_NO_ERROR;
xcam_mem_clear (&event_ids);
for (CLEventList::iterator iter = event_list.begin ();
iter != event_list.end (); ++iter) {
SmartPtr<CLEvent> &event = *iter;
XCAM_ASSERT (event->get_event_id ());
event_ids[event_count++] = event->get_event_id ();
if (event_count >= XCAM_MAX_CL_EVENT_COUNT)
break;
}
XCAM_ASSERT (event_count > 0);
error_code = clWaitForEvents (event_count, event_ids);
XCAM_FAIL_RETURN (
WARNING,
error_code == CL_SUCCESS,
XCAM_RETURN_ERROR_CL,
"cl events wait failed with error cod:%d", error_code);
return XCAM_RETURN_NO_ERROR;
}
uint32_t
CLContext::event_list_2_id_array (
CLEventList &events_wait,
cl_event *cl_events, uint32_t max_count)
{
uint32_t num_of_events_wait = 0;
for (CLEventList::iterator iter = events_wait.begin ();
iter != events_wait.end (); ++iter) {
SmartPtr<CLEvent> &event = *iter;
if (num_of_events_wait >= max_count) {
XCAM_LOG_WARNING ("CLEventList(%d) larger than id_array(max_count:%d)", events_wait.size(), max_count);
break;
}
XCAM_ASSERT (event->get_event_id ());
cl_events[num_of_events_wait++] = event->get_event_id ();
}
return num_of_events_wait;
}
