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/*
Copyright (C) 2020 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 "video_view.h"
#include "lib/signaller.h"
#include "lib/position.h"
#include "lib/warnings.h"
DCPOMATIC_DISABLE_WARNINGS
#include <wx/wx.h>
DCPOMATIC_ENABLE_WARNINGS
#include <wx/glcanvas.h>
#include <dcp/util.h>
#include <boost/atomic.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/thread.hpp>
#include <boost/thread/condition.hpp>
#undef None
#undef Success
class GLVideoView : public VideoView
{
public:
GLVideoView (FilmViewer* viewer, wxWindow* parent);
~GLVideoView ();
wxWindow* get () const {
return _canvas;
}
void update ();
void start ();
void stop ();
bool display_next_frame (bool);
bool vsync_enabled () const {
return _vsync_enabled;
}
private:
void set_image (boost::shared_ptr<const Image> image);
void set_image_and_draw ();
void draw (Position<int> inter_position, dcp::Size inter_size);
void thread ();
void thread_playing ();
void request_one_shot ();
void create ();
void check_for_butler_errors ();
/* Mutex for use of _canvas; it's only contended when our ::thread
is started up so this may be overkill.
*/
boost::mutex _canvas_mutex;
wxGLCanvas* _canvas;
wxGLContext* _context;
GLuint _id;
boost::optional<dcp::Size> _size;
bool _have_storage;
bool _vsync_enabled;
boost::thread _thread;
boost::mutex _playing_mutex;
boost::condition _thread_work_condition;
boost::atomic<bool> _playing;
boost::atomic<bool> _one_shot;
boost::shared_ptr<wxTimer> _timer;
};
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