1/* Copyright (c) 2013-2018 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#pragma once
 7
 8#include <QMutex>
 9#include <QObject>
10#include <QWaitCondition>
11
12#include <mgba/feature/video-logger.h>
13#include <mgba-util/ring-fifo.h>
14
15namespace QGBA {
16
17class CoreController;
18
19class VideoProxy : public QObject {
20Q_OBJECT
21
22public:
23	VideoProxy();
24
25	void attach(CoreController*);
26
27signals:
28	void dataAvailable();
29	void eventPosted(int);
30
31public slots:
32	void processData();
33	void reset();
34	void handleEvent(int);
35
36private:
37	void init();
38	void deinit();
39
40	bool writeData(const void* data, size_t length);
41	bool readData(void* data, size_t length, bool block);
42	void postEvent(enum mVideoLoggerEvent event);
43
44	void lock();
45	void unlock();
46	void wait();
47	void wake(int y);
48
49	template<typename T, typename... A> struct callback {
50		using type = T (VideoProxy::*)(A...);
51
52		template<type F> static T func(mVideoLogger* logger, A... args) {
53			VideoProxy* proxy = reinterpret_cast<Logger*>(logger)->p;
54			return (proxy->*F)(args...);
55		}
56	};
57
58	template<void (VideoProxy::*F)()> static void cbind(mVideoLogger* logger) { callback<void>::func<F>(logger); }
59
60	struct Logger {
61		mVideoLogger d;
62		VideoProxy* p;
63	} m_logger = {{}, this};
64
65	RingFIFO m_dirtyQueue;
66	QMutex m_mutex;
67	QWaitCondition m_toThreadCond;
68	QWaitCondition m_fromThreadCond;
69};
70
71}