1/* Copyright (c) 2013-2015 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#ifndef QGBA_GAME_CONTROLLER
  7#define QGBA_GAME_CONTROLLER
  8
  9#include <QAtomicInt>
 10#include <QFile>
 11#include <QImage>
 12#include <QObject>
 13#include <QString>
 14#include <QTimer>
 15
 16#include <memory>
 17#include <functional>
 18
 19#include <mgba/core/core.h>
 20#include <mgba/core/thread.h>
 21#include <mgba/gba/interface.h>
 22#include <mgba/internal/gba/input.h>
 23#ifdef BUILD_SDL
 24#include "platform/sdl/sdl-events.h"
 25#endif
 26
 27struct Configuration;
 28struct GBAAudio;
 29struct mCoreConfig;
 30struct mDebugger;
 31struct mTileCache;
 32
 33class QThread;
 34
 35namespace QGBA {
 36
 37class AudioProcessor;
 38class InputController;
 39class MultiplayerController;
 40class Override;
 41
 42class GameController : public QObject {
 43Q_OBJECT
 44
 45public:
 46	static const bool VIDEO_SYNC = false;
 47	static const bool AUDIO_SYNC = true;
 48
 49	class Interrupter {
 50	public:
 51		Interrupter(GameController*, bool fromThread = false);
 52		~Interrupter();
 53
 54	private:
 55		GameController* m_parent;
 56		bool m_fromThread;
 57	};
 58
 59	GameController(QObject* parent = nullptr);
 60	~GameController();
 61
 62	const uint32_t* drawContext() const { return m_drawContext; }
 63	mCoreThread* thread() { return &m_threadContext; }
 64	mCheatDevice* cheatDevice() { return m_threadContext.core ? m_threadContext.core->cheatDevice(m_threadContext.core) : nullptr; }
 65
 66	void threadInterrupt();
 67	void threadContinue();
 68
 69	bool isPaused();
 70	bool isLoaded() { return m_gameOpen && mCoreThreadIsActive(&m_threadContext); }
 71	mPlatform platform() const;
 72
 73	bool audioSync() const { return m_audioSync; }
 74	bool videoSync() const { return m_videoSync; }
 75	QSize screenDimensions() const;
 76
 77	void setInputController(InputController* controller) { m_inputController = controller; }
 78
 79	void setMultiplayerController(MultiplayerController* controller);
 80	MultiplayerController* multiplayerController() { return m_multiplayer; }
 81	void clearMultiplayerController();
 82
 83	void setOverride(Override* override);
 84	Override* override() { return m_override; }
 85	void clearOverride();
 86
 87	void setConfig(const mCoreConfig*);
 88
 89	int stateSlot() const { return m_stateSlot; }
 90
 91#ifdef USE_GDB_STUB
 92	mDebugger* debugger();
 93	void setDebugger(mDebugger*);
 94#endif
 95
 96	std::shared_ptr<mTileCache> tileCache();
 97
 98signals:
 99	void frameAvailable(const uint32_t*);
100	void gameStarted(mCoreThread*, const QString& fname);
101	void gameStopped(mCoreThread*);
102	void gamePaused(mCoreThread*);
103	void gameUnpaused(mCoreThread*);
104	void gameCrashed(const QString& errorMessage);
105	void gameFailed();
106	void stateLoaded(mCoreThread*);
107	void rewound(mCoreThread*);
108	void unimplementedBiosCall(int);
109
110	void luminanceValueChanged(int);
111
112	void statusPosted(const QString& message);
113	void postLog(int level, int category, const QString& log);
114
115public slots:
116	void loadGame(const QString& path);
117	void loadGame(VFile* vf, const QString& path, const QString& base);
118	void loadBIOS(int platform, const QString& path);
119	void loadSave(const QString& path, bool temporary = true);
120	void yankPak();
121	void replaceGame(const QString& path);
122	void setUseBIOS(bool);
123	void loadPatch(const QString& path);
124	void importSharkport(const QString& path);
125	void exportSharkport(const QString& path);
126	void bootBIOS();
127	void closeGame();
128	void setPaused(bool paused);
129	void reset();
130	void frameAdvance();
131	void setRewind(bool enable, int capacity, bool rewindSave);
132	void rewind(int states = 0);
133	void startRewinding();
134	void stopRewinding();
135	void keyPressed(int key);
136	void keyReleased(int key);
137	void clearKeys();
138	void setAutofire(int key, bool enable);
139	void setAudioBufferSamples(int samples);
140	void setAudioSampleRate(unsigned rate);
141	void setAudioChannelEnabled(int channel, bool enable = true);
142	void startAudio();
143	void setVideoLayerEnabled(int layer, bool enable = true);
144	void setFPSTarget(float fps);
145	void loadState(int slot = 0);
146	void saveState(int slot = 0);
147	void loadBackupState();
148	void saveBackupState();
149	void setTurbo(bool, bool forced = true);
150	void setTurboSpeed(float ratio);
151	void setSync(bool);
152	void setAVStream(mAVStream*);
153	void clearAVStream();
154	void reloadAudioDriver();
155	void setSaveStateExtdata(int flags);
156	void setLoadStateExtdata(int flags);
157
158#ifdef USE_PNG
159	void screenshot();
160#endif
161
162	void setLuminanceValue(uint8_t value);
163	uint8_t luminanceValue() const { return m_luxValue; }
164	void setLuminanceLevel(int level);
165	void increaseLuminanceLevel() { setLuminanceLevel(m_luxLevel + 1); }
166	void decreaseLuminanceLevel() { setLuminanceLevel(m_luxLevel - 1); }
167
168	void setRealTime();
169	void setFixedTime(const QDateTime& time);
170	void setFakeEpoch(const QDateTime& time);
171
172	void setLogLevel(int);
173	void enableLogLevel(int);
174	void disableLogLevel(int);
175
176private slots:
177	void openGame(bool bios = false);
178	void crashGame(const QString& crashMessage);
179	void cleanGame();
180
181	void pollEvents();
182	void updateAutofire();
183
184private:
185	void updateKeys();
186	void redoSamples(int samples);
187	void enableTurbo();
188
189	uint32_t* m_drawContext;
190	uint32_t* m_frontBuffer;
191	mCoreThread m_threadContext;
192	const mCoreConfig* m_config;
193	mCheatDevice* m_cheatDevice;
194	int m_activeKeys;
195	int m_activeButtons;
196	int m_inactiveKeys;
197	int m_logLevels;
198
199	bool m_gameOpen;
200
201	QString m_fname;
202	QString m_fsub;
203	VFile* m_vf;
204	QString m_bios;
205	bool m_useBios;
206	QString m_patch;
207	Override* m_override;
208
209	QThread* m_audioThread;
210	AudioProcessor* m_audioProcessor;
211
212	QAtomicInt m_pauseAfterFrame;
213	QList<std::function<void ()>> m_resetActions;
214
215	bool m_sync;
216	bool m_videoSync;
217	bool m_audioSync;
218	float m_fpsTarget;
219	bool m_turbo;
220	bool m_turboForced;
221	float m_turboSpeed;
222	bool m_wasPaused;
223
224	std::shared_ptr<mTileCache> m_tileCache;
225
226	bool m_audioChannels[6];
227	bool m_videoLayers[5];
228
229	bool m_autofire[GBA_KEY_MAX];
230	int m_autofireStatus[GBA_KEY_MAX];
231
232	int m_stateSlot;
233	struct VFile* m_backupLoadState;
234	QByteArray m_backupSaveState;
235	int m_saveStateFlags;
236	int m_loadStateFlags;
237
238	InputController* m_inputController;
239	MultiplayerController* m_multiplayer;
240
241	mAVStream* m_stream;
242
243	struct GameControllerLux : GBALuminanceSource {
244		GameController* p;
245		uint8_t value;
246	} m_lux;
247	uint8_t m_luxValue;
248	int m_luxLevel;
249};
250
251}
252
253#endif