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/*
Copyright (C) 2022 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "image.h"
#include <dcp/array_data.h>
extern "C" {
#include <libavutil/pixfmt.h>
}
#include <boost/thread/condition.hpp>
#include <boost/thread/mutex.hpp>
#include <memory>
#include <queue>
#include <thread>
class CUDA
{
public:
CUDA();
CUDA(CUDA &) = delete;
CUDA(CUDA &&) = delete;
std::shared_ptr<Image> decode(std::shared_ptr<const dcp::Data> j2k_data, int reduce, AVPixelFormat pixel_format, Image::Alignment alignment);
static CUDA* instance();
private:
void decode_thread();
typedef uint64_t ID;
class DecodeQueueItem
{
public:
ID id;
std::shared_ptr<const dcp::Data> data;
int reduce;
AVPixelFormat pixel_format;
Image::Alignment alignment;
};
std::queue<DecodeQueueItem> _decode_queue;
std::map<ID, std::shared_ptr<Image>> _decode_output;
boost::condition _decode_queue_empty_condition;
boost::condition _decode_complete_condition;
boost::mutex _decode_mutex;
std::thread _decode_thread;
ID _next_decode_id = 0;
static CUDA* _instance;
};
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