OCLDataTransferManager.cpp

/*  Copyright 2014 Aaron Boxer (boxerab@gmail.com)

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>. */

#include "OCLDataTransferManager.h"

/*

1. 4 image frames get converted to 3 host buffers (fourth frame is distributed into three alpha channels of host buffers)

2. for each host buffer, we enqueue a write to device buffer, and receive back a generated event

3. enqueue a series of kernels, set to wait on generated event, and returning a chain of generated event

4. enqueue a read from device buffer waiting on last generated event, with a thread that checks on status of event

5. when complete, copy to SSD and continue

*/


OCLDataTransferManager::OCLDataTransferManager(ocl_args_d_t* ocl) : ocl(ocl)
{
    HostToDevicePendingFunctor x(ocl, hostToDevicePendingQueue);
    hostToDevicePendingThread = new boost::thread(x);
}


OCLDataTransferManager::~OCLDataTransferManager(void)
{
    if (hostToDevicePendingThread) {
        hostToDevicePendingThread->join();
        delete hostToDevicePendingThread;
    }
}