src/platform/qt/GameController.cpp (view raw)
1/* Copyright (c) 2013-2014 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#include "GameController.h"
7
8#include "AudioProcessor.h"
9#include "InputController.h"
10#include "MultiplayerController.h"
11
12#include <QDateTime>
13#include <QThread>
14
15#include <ctime>
16
17extern "C" {
18#include "gba/audio.h"
19#include "gba/gba.h"
20#include "gba/serialize.h"
21#include "gba/renderers/video-software.h"
22#include "gba/supervisor/config.h"
23#include "util/vfs.h"
24}
25
26using namespace QGBA;
27using namespace std;
28
29const int GameController::LUX_LEVELS[10] = { 5, 11, 18, 27, 42, 62, 84, 109, 139, 183 };
30
31GameController::GameController(QObject* parent)
32 : QObject(parent)
33 , m_drawContext(new uint32_t[256 * 256])
34 , m_threadContext()
35 , m_activeKeys(0)
36 , m_inactiveKeys(0)
37 , m_logLevels(0)
38 , m_gameOpen(false)
39 , m_audioThread(new QThread(this))
40 , m_audioProcessor(AudioProcessor::create())
41 , m_videoSync(VIDEO_SYNC)
42 , m_audioSync(AUDIO_SYNC)
43 , m_turbo(false)
44 , m_turboForced(false)
45 , m_inputController(nullptr)
46 , m_multiplayer(nullptr)
47{
48 m_renderer = new GBAVideoSoftwareRenderer;
49 GBAVideoSoftwareRendererCreate(m_renderer);
50 m_renderer->outputBuffer = (color_t*) m_drawContext;
51 m_renderer->outputBufferStride = 256;
52
53 GBACheatDeviceCreate(&m_cheatDevice);
54
55 m_threadContext.state = THREAD_INITIALIZED;
56 m_threadContext.debugger = 0;
57 m_threadContext.frameskip = 0;
58 m_threadContext.bios = 0;
59 m_threadContext.renderer = &m_renderer->d;
60 m_threadContext.userData = this;
61 m_threadContext.rewindBufferCapacity = 0;
62 m_threadContext.cheats = &m_cheatDevice;
63 m_threadContext.logLevel = -1;
64
65 m_lux.p = this;
66 m_lux.sample = [] (GBALuminanceSource* context) {
67 GameControllerLux* lux = static_cast<GameControllerLux*>(context);
68 lux->value = 0xFF - lux->p->m_luxValue;
69 };
70
71 m_lux.readLuminance = [] (GBALuminanceSource* context) {
72 GameControllerLux* lux = static_cast<GameControllerLux*>(context);
73 return lux->value;
74 };
75 setLuminanceLevel(0);
76
77 m_rtc.p = this;
78 m_rtc.override = GameControllerRTC::NO_OVERRIDE;
79 m_rtc.sample = [] (GBARTCSource* context) { };
80 m_rtc.unixTime = [] (GBARTCSource* context) -> time_t {
81 GameControllerRTC* rtc = static_cast<GameControllerRTC*>(context);
82 switch (rtc->override) {
83 case GameControllerRTC::NO_OVERRIDE:
84 default:
85 return time(nullptr);
86 case GameControllerRTC::FIXED:
87 return rtc->value;
88 case GameControllerRTC::FAKE_EPOCH:
89 return rtc->value + rtc->p->m_threadContext.gba->video.frameCounter * (int64_t) VIDEO_TOTAL_LENGTH / GBA_ARM7TDMI_FREQUENCY;
90 }
91 };
92
93 m_threadContext.startCallback = [] (GBAThread* context) {
94 GameController* controller = static_cast<GameController*>(context->userData);
95 controller->m_audioProcessor->setInput(context);
96 // Override the GBA object's log level to prevent stdout spew
97 context->gba->logLevel = GBA_LOG_FATAL;
98 context->gba->luminanceSource = &controller->m_lux;
99 context->gba->rtcSource = &controller->m_rtc;
100 controller->gameStarted(context);
101 };
102
103 m_threadContext.cleanCallback = [] (GBAThread* context) {
104 GameController* controller = static_cast<GameController*>(context->userData);
105 controller->gameStopped(context);
106 };
107
108 m_threadContext.frameCallback = [] (GBAThread* context) {
109 GameController* controller = static_cast<GameController*>(context->userData);
110 controller->m_pauseMutex.lock();
111 if (controller->m_pauseAfterFrame) {
112 GBAThreadPauseFromThread(context);
113 controller->m_pauseAfterFrame = false;
114 controller->gamePaused(&controller->m_threadContext);
115 }
116 controller->m_pauseMutex.unlock();
117 controller->frameAvailable(controller->m_drawContext);
118 };
119
120 m_threadContext.logHandler = [] (GBAThread* context, enum GBALogLevel level, const char* format, va_list args) {
121 GameController* controller = static_cast<GameController*>(context->userData);
122 if (level == GBA_LOG_FATAL) {
123 QMetaObject::invokeMethod(controller, "crashGame", Q_ARG(const QString&, QString().vsprintf(format, args)));
124 } else if (!(controller->m_logLevels & level)) {
125 return;
126 }
127 controller->postLog(level, QString().vsprintf(format, args));
128 };
129
130 m_audioThread->start(QThread::TimeCriticalPriority);
131 m_audioProcessor->moveToThread(m_audioThread);
132 connect(this, SIGNAL(gameStarted(GBAThread*)), m_audioProcessor, SLOT(start()));
133 connect(this, SIGNAL(gameStopped(GBAThread*)), m_audioProcessor, SLOT(pause()));
134 connect(this, SIGNAL(gamePaused(GBAThread*)), m_audioProcessor, SLOT(pause()));
135 connect(this, SIGNAL(gameUnpaused(GBAThread*)), m_audioProcessor, SLOT(start()));
136
137#ifdef BUILD_SDL
138 connect(this, SIGNAL(frameAvailable(const uint32_t*)), this, SLOT(testSDLEvents()));
139#endif
140}
141
142GameController::~GameController() {
143 m_audioThread->quit();
144 m_audioThread->wait();
145 disconnect();
146 clearMultiplayerController();
147 closeGame();
148 GBACheatDeviceDestroy(&m_cheatDevice);
149 delete m_renderer;
150 delete[] m_drawContext;
151}
152
153void GameController::setMultiplayerController(std::shared_ptr<MultiplayerController> controller) {
154 if (controller == m_multiplayer) {
155 return;
156 }
157 clearMultiplayerController();
158 m_multiplayer = controller;
159 controller->attachGame(this);
160}
161
162void GameController::clearMultiplayerController() {
163 if (!m_multiplayer) {
164 return;
165 }
166 m_multiplayer->detachGame(this);
167 m_multiplayer.reset();
168}
169
170void GameController::setOverride(const GBACartridgeOverride& override) {
171 m_threadContext.override = override;
172 m_threadContext.hasOverride = true;
173}
174
175void GameController::setOptions(const GBAOptions* opts) {
176 setFrameskip(opts->frameskip);
177 setAudioSync(opts->audioSync);
178 setVideoSync(opts->videoSync);
179 setSkipBIOS(opts->skipBios);
180 setUseBIOS(opts->useBios);
181 setRewind(opts->rewindEnable, opts->rewindBufferCapacity, opts->rewindBufferInterval);
182
183 threadInterrupt();
184 m_threadContext.idleOptimization = opts->idleOptimization;
185 threadContinue();
186}
187
188#ifdef USE_GDB_STUB
189ARMDebugger* GameController::debugger() {
190 return m_threadContext.debugger;
191}
192
193void GameController::setDebugger(ARMDebugger* debugger) {
194 threadInterrupt();
195 if (m_threadContext.debugger && GBAThreadIsActive(&m_threadContext)) {
196 GBADetachDebugger(m_threadContext.gba);
197 }
198 m_threadContext.debugger = debugger;
199 if (m_threadContext.debugger && GBAThreadIsActive(&m_threadContext)) {
200 GBAAttachDebugger(m_threadContext.gba, m_threadContext.debugger);
201 }
202 threadContinue();
203}
204#endif
205
206void GameController::loadGame(const QString& path, bool dirmode) {
207 closeGame();
208 if (!dirmode) {
209 QFile file(path);
210 if (!file.open(QIODevice::ReadOnly)) {
211 return;
212 }
213 file.close();
214 }
215
216 m_fname = path;
217 m_dirmode = dirmode;
218 openGame();
219}
220
221void GameController::openGame() {
222 m_gameOpen = true;
223
224 m_pauseAfterFrame = false;
225
226 if (m_turbo) {
227 m_threadContext.sync.videoFrameWait = false;
228 m_threadContext.sync.audioWait = false;
229 } else {
230 m_threadContext.sync.videoFrameWait = m_videoSync;
231 m_threadContext.sync.audioWait = m_audioSync;
232 }
233
234 m_threadContext.gameDir = 0;
235 m_threadContext.fname = strdup(m_fname.toLocal8Bit().constData());
236 if (m_dirmode) {
237 m_threadContext.gameDir = VDirOpen(m_threadContext.fname);
238 m_threadContext.stateDir = m_threadContext.gameDir;
239 } else {
240 m_threadContext.rom = VFileOpen(m_threadContext.fname, O_RDONLY);
241#if USE_LIBZIP
242 if (!m_threadContext.gameDir) {
243 m_threadContext.gameDir = VDirOpenZip(m_threadContext.fname, 0);
244 }
245#endif
246#if USE_LZMA
247 if (!m_threadContext.gameDir) {
248 m_threadContext.gameDir = VDirOpen7z(m_threadContext.fname, 0);
249 }
250#endif
251 }
252
253 if (!m_bios.isNull() &&m_useBios) {
254 m_threadContext.bios = VFileOpen(m_bios.toLocal8Bit().constData(), O_RDONLY);
255 } else {
256 m_threadContext.bios = nullptr;
257 }
258
259 if (!m_patch.isNull()) {
260 m_threadContext.patch = VFileOpen(m_patch.toLocal8Bit().constData(), O_RDONLY);
261 }
262
263 if (!GBAThreadStart(&m_threadContext)) {
264 m_gameOpen = false;
265 emit gameFailed();
266 }
267}
268
269void GameController::loadBIOS(const QString& path) {
270 if (m_bios == path) {
271 return;
272 }
273 m_bios = path;
274 if (m_gameOpen) {
275 closeGame();
276 openGame();
277 }
278}
279
280void GameController::loadPatch(const QString& path) {
281 if (m_gameOpen) {
282 closeGame();
283 m_patch = path;
284 openGame();
285 } else {
286 m_patch = path;
287 }
288}
289
290void GameController::closeGame() {
291 if (!m_gameOpen) {
292 return;
293 }
294 if (GBAThreadIsPaused(&m_threadContext)) {
295 GBAThreadUnpause(&m_threadContext);
296 }
297 GBAThreadEnd(&m_threadContext);
298 GBAThreadJoin(&m_threadContext);
299 if (m_threadContext.fname) {
300 free(const_cast<char*>(m_threadContext.fname));
301 m_threadContext.fname = nullptr;
302 }
303
304 m_patch = QString();
305
306 for (size_t i = 0; i < GBACheatSetsSize(&m_cheatDevice.cheats); ++i) {
307 GBACheatSet* set = *GBACheatSetsGetPointer(&m_cheatDevice.cheats, i);
308 GBACheatSetDeinit(set);
309 delete set;
310 }
311 GBACheatSetsClear(&m_cheatDevice.cheats);
312
313 m_gameOpen = false;
314 emit gameStopped(&m_threadContext);
315}
316
317void GameController::crashGame(const QString& crashMessage) {
318 closeGame();
319 emit gameCrashed(crashMessage);
320}
321
322bool GameController::isPaused() {
323 if (!m_gameOpen) {
324 return false;
325 }
326 return GBAThreadIsPaused(&m_threadContext);
327}
328
329void GameController::setPaused(bool paused) {
330 if (paused == GBAThreadIsPaused(&m_threadContext)) {
331 return;
332 }
333 if (paused) {
334 GBAThreadPause(&m_threadContext);
335 emit gamePaused(&m_threadContext);
336 } else {
337 GBAThreadUnpause(&m_threadContext);
338 emit gameUnpaused(&m_threadContext);
339 }
340}
341
342void GameController::reset() {
343 GBAThreadReset(&m_threadContext);
344}
345
346void GameController::threadInterrupt() {
347 if (m_gameOpen) {
348 GBAThreadInterrupt(&m_threadContext);
349 }
350}
351
352void GameController::threadContinue() {
353 if (m_gameOpen) {
354 GBAThreadContinue(&m_threadContext);
355 }
356}
357
358void GameController::frameAdvance() {
359 m_pauseMutex.lock();
360 m_pauseAfterFrame = true;
361 setPaused(false);
362 m_pauseMutex.unlock();
363}
364
365void GameController::setRewind(bool enable, int capacity, int interval) {
366 if (m_gameOpen) {
367 threadInterrupt();
368 GBARewindSettingsChanged(&m_threadContext, enable ? capacity : 0, enable ? interval : 0);
369 threadContinue();
370 } else {
371 if (enable) {
372 m_threadContext.rewindBufferInterval = interval;
373 m_threadContext.rewindBufferCapacity = capacity;
374 } else {
375 m_threadContext.rewindBufferInterval = 0;
376 m_threadContext.rewindBufferCapacity = 0;
377 }
378 }
379}
380
381void GameController::rewind(int states) {
382 threadInterrupt();
383 if (!states) {
384 GBARewindAll(&m_threadContext);
385 } else {
386 GBARewind(&m_threadContext, states);
387 }
388 threadContinue();
389}
390
391void GameController::keyPressed(int key) {
392 int mappedKey = 1 << key;
393 m_activeKeys |= mappedKey;
394 if (!m_inputController->allowOpposing()) {
395 if ((m_activeKeys & 0x30) == 0x30) {
396 m_inactiveKeys |= mappedKey ^ 0x30;
397 m_activeKeys ^= mappedKey ^ 0x30;
398 }
399 if ((m_activeKeys & 0xC0) == 0xC0) {
400 m_inactiveKeys |= mappedKey ^ 0xC0;
401 m_activeKeys ^= mappedKey ^ 0xC0;
402 }
403 }
404 updateKeys();
405}
406
407void GameController::keyReleased(int key) {
408 int mappedKey = 1 << key;
409 m_activeKeys &= ~mappedKey;
410 if (!m_inputController->allowOpposing()) {
411 if (mappedKey & 0x30) {
412 m_activeKeys |= m_inactiveKeys & (0x30 ^ mappedKey);
413 m_inactiveKeys &= ~0x30;
414 }
415 if (mappedKey & 0xC0) {
416 m_activeKeys |= m_inactiveKeys & (0xC0 ^ mappedKey);
417 m_inactiveKeys &= ~0xC0;
418 }
419 }
420 updateKeys();
421}
422
423void GameController::clearKeys() {
424 m_activeKeys = 0;
425 m_inactiveKeys = 0;
426 updateKeys();
427}
428
429void GameController::setAudioBufferSamples(int samples) {
430 threadInterrupt();
431 redoSamples(samples);
432 threadContinue();
433 QMetaObject::invokeMethod(m_audioProcessor, "setBufferSamples", Q_ARG(int, samples));
434}
435
436void GameController::setFPSTarget(float fps) {
437 threadInterrupt();
438 m_threadContext.fpsTarget = fps;
439 redoSamples(m_audioProcessor->getBufferSamples());
440 threadContinue();
441 QMetaObject::invokeMethod(m_audioProcessor, "inputParametersChanged");
442}
443
444void GameController::setSkipBIOS(bool set) {
445 threadInterrupt();
446 m_threadContext.skipBios = set;
447 threadContinue();
448}
449
450void GameController::setUseBIOS(bool use) {
451 threadInterrupt();
452 m_useBios = use;
453 threadContinue();
454}
455
456void GameController::loadState(int slot) {
457 threadInterrupt();
458 GBALoadState(&m_threadContext, m_threadContext.stateDir, slot);
459 threadContinue();
460 emit stateLoaded(&m_threadContext);
461 emit frameAvailable(m_drawContext);
462}
463
464void GameController::saveState(int slot) {
465 threadInterrupt();
466 GBASaveState(&m_threadContext, m_threadContext.stateDir, slot, true);
467 threadContinue();
468}
469
470void GameController::setVideoSync(bool set) {
471 m_videoSync = set;
472 if (!m_turbo) {
473 threadInterrupt();
474 m_threadContext.sync.videoFrameWait = set;
475 threadContinue();
476 }
477}
478
479void GameController::setAudioSync(bool set) {
480 m_audioSync = set;
481 if (!m_turbo) {
482 threadInterrupt();
483 m_threadContext.sync.audioWait = set;
484 threadContinue();
485 }
486}
487
488void GameController::setFrameskip(int skip) {
489 m_threadContext.frameskip = skip;
490}
491
492void GameController::setTurbo(bool set, bool forced) {
493 if (m_turboForced && !forced) {
494 return;
495 }
496 m_turbo = set;
497 m_turboForced = set && forced;
498 threadInterrupt();
499 m_threadContext.sync.audioWait = set ? false : m_audioSync;
500 m_threadContext.sync.videoFrameWait = set ? false : m_videoSync;
501 threadContinue();
502}
503
504void GameController::setAVStream(GBAAVStream* stream) {
505 threadInterrupt();
506 m_threadContext.stream = stream;
507 threadContinue();
508}
509
510void GameController::clearAVStream() {
511 threadInterrupt();
512 m_threadContext.stream = nullptr;
513 threadContinue();
514}
515
516void GameController::reloadAudioDriver() {
517 QMetaObject::invokeMethod(m_audioProcessor, "pause", Qt::BlockingQueuedConnection);
518 int samples = m_audioProcessor->getBufferSamples();
519 delete m_audioProcessor;
520 m_audioProcessor = AudioProcessor::create();
521 m_audioProcessor->setBufferSamples(samples);
522 m_audioProcessor->moveToThread(m_audioThread);
523 connect(this, SIGNAL(gameStarted(GBAThread*)), m_audioProcessor, SLOT(start()));
524 connect(this, SIGNAL(gameStopped(GBAThread*)), m_audioProcessor, SLOT(pause()));
525 connect(this, SIGNAL(gamePaused(GBAThread*)), m_audioProcessor, SLOT(pause()));
526 connect(this, SIGNAL(gameUnpaused(GBAThread*)), m_audioProcessor, SLOT(start()));
527 if (isLoaded()) {
528 m_audioProcessor->setInput(&m_threadContext);
529 QMetaObject::invokeMethod(m_audioProcessor, "start");
530 }
531}
532
533void GameController::setLuminanceValue(uint8_t value) {
534 m_luxValue = value;
535 value = std::max<int>(value - 0x16, 0);
536 m_luxLevel = 10;
537 for (int i = 0; i < 10; ++i) {
538 if (value < LUX_LEVELS[i]) {
539 m_luxLevel = i;
540 break;
541 }
542 }
543 emit luminanceValueChanged(m_luxValue);
544}
545
546void GameController::setLuminanceLevel(int level) {
547 int value = 0x16;
548 level = std::max(0, std::min(10, level));
549 if (level > 0) {
550 value += LUX_LEVELS[level - 1];
551 }
552 setLuminanceValue(value);
553}
554
555void GameController::setRealTime() {
556 m_rtc.override = GameControllerRTC::NO_OVERRIDE;
557}
558
559void GameController::setFixedTime(const QDateTime& time) {
560 m_rtc.override = GameControllerRTC::FIXED;
561 m_rtc.value = time.toMSecsSinceEpoch() / 1000;
562}
563
564void GameController::setFakeEpoch(const QDateTime& time) {
565 m_rtc.override = GameControllerRTC::FAKE_EPOCH;
566 m_rtc.value = time.toMSecsSinceEpoch() / 1000;
567}
568
569void GameController::updateKeys() {
570 int activeKeys = m_activeKeys;
571#ifdef BUILD_SDL
572 activeKeys |= m_activeButtons;
573#endif
574 activeKeys &= ~m_inactiveKeys;
575 m_threadContext.activeKeys = activeKeys;
576}
577
578void GameController::redoSamples(int samples) {
579#if RESAMPLE_LIBRARY != RESAMPLE_BLIP_BUF
580 float sampleRate = 0x8000;
581 float ratio;
582 if (m_threadContext.gba) {
583 sampleRate = m_threadContext.gba->audio.sampleRate;
584 }
585 ratio = GBAAudioCalculateRatio(sampleRate, m_threadContext.fpsTarget, 44100);
586 m_threadContext.audioBuffers = ceil(samples / ratio);
587#else
588 m_threadContext.audioBuffers = samples;
589#endif
590 if (m_threadContext.gba) {
591 GBAAudioResizeBuffer(&m_threadContext.gba->audio, m_threadContext.audioBuffers);
592 }
593}
594
595void GameController::setLogLevel(int levels) {
596 threadInterrupt();
597 m_logLevels = levels;
598 threadContinue();
599}
600
601void GameController::enableLogLevel(int levels) {
602 threadInterrupt();
603 m_logLevels |= levels;
604 threadContinue();
605}
606
607void GameController::disableLogLevel(int levels) {
608 threadInterrupt();
609 m_logLevels &= ~levels;
610 threadContinue();
611}
612
613#ifdef BUILD_SDL
614void GameController::testSDLEvents() {
615 if (!m_inputController) {
616 return;
617 }
618
619 m_activeButtons = m_inputController->testSDLEvents();
620 updateKeys();
621}
622#endif