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 "LogController.h"
11#include "MultiplayerController.h"
12#include "Override.h"
13#include "VFileDevice.h"
14
15#include <QCoreApplication>
16#include <QDateTime>
17
18#include <ctime>
19
20#include <mgba/core/config.h>
21#include <mgba/core/directories.h>
22#include <mgba/core/serialize.h>
23#include <mgba/core/tile-cache.h>
24#ifdef M_CORE_GBA
25#include <mgba/gba/interface.h>
26#include <mgba/internal/gba/gba.h>
27#include <mgba/gba/core.h>
28#include <mgba/internal/gba/renderers/tile-cache.h>
29#include <mgba/internal/gba/sharkport.h>
30#endif
31#ifdef M_CORE_GB
32#include <mgba/internal/gb/gb.h>
33#include <mgba/internal/gb/renderers/tile-cache.h>
34#endif
35#include <mgba-util/vfs.h>
36#include <mgba/feature/video-logger.h>
37
38using namespace QGBA;
39using namespace std;
40
41GameController::GameController(QObject* parent)
42 : QObject(parent)
43 , m_audioProcessor(AudioProcessor::create())
44 , m_saveStateFlags(SAVESTATE_SCREENSHOT | SAVESTATE_SAVEDATA | SAVESTATE_CHEATS | SAVESTATE_RTC | SAVESTATE_METADATA)
45 , m_loadStateFlags(SAVESTATE_SCREENSHOT | SAVESTATE_RTC)
46{
47#ifdef M_CORE_GBA
48 m_lux.p = this;
49 m_lux.sample = [](GBALuminanceSource* context) {
50 GameControllerLux* lux = static_cast<GameControllerLux*>(context);
51 lux->value = 0xFF - lux->p->m_luxValue;
52 };
53
54 m_lux.readLuminance = [](GBALuminanceSource* context) {
55 GameControllerLux* lux = static_cast<GameControllerLux*>(context);
56 return lux->value;
57 };
58 setLuminanceLevel(0);
59#endif
60
61 m_threadContext.startCallback = [](mCoreThread* context) {
62 GameController* controller = static_cast<GameController*>(context->userData);
63 context->core->setPeripheral(context->core, mPERIPH_ROTATION, controller->m_inputController->rotationSource());
64 context->core->setPeripheral(context->core, mPERIPH_RUMBLE, controller->m_inputController->rumble());
65
66 for (size_t i = 0; i < controller->m_audioChannels.size(); ++i) {
67 context->core->enableAudioChannel(context->core, i, controller->m_audioChannels[i]);
68 }
69 for (size_t i = 0; i < controller->m_videoLayers.size(); ++i) {
70 context->core->enableVideoLayer(context->core, i, controller->m_videoLayers[i]);
71 }
72
73 switch (context->core->platform(context->core)) {
74#ifdef M_CORE_GBA
75 case PLATFORM_GBA:
76 context->core->setPeripheral(context->core, mPERIPH_GBA_LUMINANCE, &controller->m_lux);
77 break;
78#endif
79 default:
80 break;
81 }
82 controller->m_fpsTarget = context->sync.fpsTarget;
83
84 if (controller->m_override) {
85 controller->m_override->identify(context->core);
86 controller->m_override->apply(context->core);
87 }
88
89 if (mCoreLoadState(context->core, 0, controller->m_loadStateFlags)) {
90 mCoreDeleteState(context->core, 0);
91 }
92
93 controller->m_gameOpen = true;
94 if (controller->m_multiplayer) {
95 controller->m_multiplayer->attachGame(controller);
96 }
97
98 QString path = controller->m_fname;
99 if (!controller->m_fsub.isEmpty()) {
100 path += QDir::separator() + controller->m_fsub;
101 }
102 QMetaObject::invokeMethod(controller, "gameStarted", Q_ARG(mCoreThread*, context), Q_ARG(const QString&, path));
103 QMetaObject::invokeMethod(controller, "startAudio");
104 };
105
106 m_threadContext.resetCallback = [](mCoreThread* context) {
107 GameController* controller = static_cast<GameController*>(context->userData);
108 for (auto action : controller->m_resetActions) {
109 action();
110 }
111 controller->m_resetActions.clear();
112
113 unsigned width, height;
114 controller->m_threadContext.core->desiredVideoDimensions(controller->m_threadContext.core, &width, &height);
115 memset(controller->m_frontBuffer, 0xFF, width * height * BYTES_PER_PIXEL);
116 QMetaObject::invokeMethod(controller, "frameAvailable", Q_ARG(const uint32_t*, controller->m_frontBuffer));
117 if (controller->m_pauseAfterFrame.testAndSetAcquire(true, false)) {
118 mCoreThreadPauseFromThread(context);
119 QMetaObject::invokeMethod(controller, "gamePaused", Q_ARG(mCoreThread*, context));
120 }
121 };
122
123 m_threadContext.cleanCallback = [](mCoreThread* context) {
124 GameController* controller = static_cast<GameController*>(context->userData);
125
126 if (controller->m_multiplayer) {
127 controller->m_multiplayer->detachGame(controller);
128 }
129 controller->m_patch = QString();
130 controller->clearOverride();
131 controller->endVideoLog();
132
133 QMetaObject::invokeMethod(controller->m_audioProcessor, "pause");
134
135 QMetaObject::invokeMethod(controller, "gameStopped", Q_ARG(mCoreThread*, context));
136 QMetaObject::invokeMethod(controller, "cleanGame");
137 };
138
139 m_threadContext.frameCallback = [](mCoreThread* context) {
140 GameController* controller = static_cast<GameController*>(context->userData);
141 unsigned width, height;
142 controller->m_threadContext.core->desiredVideoDimensions(controller->m_threadContext.core, &width, &height);
143 memcpy(controller->m_frontBuffer, controller->m_drawContext, width * height * BYTES_PER_PIXEL);
144 QMetaObject::invokeMethod(controller, "frameAvailable", Q_ARG(const uint32_t*, controller->m_frontBuffer));
145
146 // If no one is using the tile cache, disable it
147 if (controller->m_tileCache && controller->m_tileCache.unique()) {
148 switch (controller->platform()) {
149#ifdef M_CORE_GBA
150 case PLATFORM_GBA: {
151 GBA* gba = static_cast<GBA*>(context->core->board);
152 gba->video.renderer->cache = nullptr;
153 break;
154 }
155#endif
156#ifdef M_CORE_GB
157 case PLATFORM_GB: {
158 GB* gb = static_cast<GB*>(context->core->board);
159 gb->video.renderer->cache = nullptr;
160 break;
161 }
162#endif
163 default:
164 break;
165 }
166 mTileCacheDeinit(controller->m_tileCache.get());
167 controller->m_tileCache.reset();
168 }
169
170
171 if (controller->m_pauseAfterFrame.testAndSetAcquire(true, false)) {
172 mCoreThreadPauseFromThread(context);
173 QMetaObject::invokeMethod(controller, "gamePaused", Q_ARG(mCoreThread*, context));
174 }
175 };
176
177 m_threadContext.sleepCallback = [](mCoreThread* context) {
178 if (!context) {
179 return;
180 }
181 GameController* controller = static_cast<GameController*>(context->userData);
182 if (!mCoreSaveState(context->core, 0, controller->m_saveStateFlags)) {
183 return;
184 }
185 QMetaObject::invokeMethod(controller, "closeGame");
186 };
187
188 m_threadContext.logger.d.log = [](mLogger* logger, int category, enum mLogLevel level, const char* format, va_list args) {
189 mThreadLogger* logContext = reinterpret_cast<mThreadLogger*>(logger);
190 mCoreThread* context = logContext->p;
191
192 static const char* savestateMessage = "State %i loaded";
193 static const char* savestateFailedMessage = "State %i failed to load";
194 static int biosCat = -1;
195 static int statusCat = -1;
196 if (!context) {
197 return;
198 }
199 GameController* controller = static_cast<GameController*>(context->userData);
200 QString message;
201 if (biosCat < 0) {
202 biosCat = mLogCategoryById("gba.bios");
203 }
204 if (statusCat < 0) {
205 statusCat = mLogCategoryById("core.status");
206 }
207#ifdef M_CORE_GBA
208 if (level == mLOG_STUB && category == biosCat) {
209 va_list argc;
210 va_copy(argc, args);
211 int immediate = va_arg(argc, int);
212 va_end(argc);
213 QMetaObject::invokeMethod(controller, "unimplementedBiosCall", Q_ARG(int, immediate));
214 } else
215#endif
216 if (category == statusCat) {
217 // Slot 0 is reserved for suspend points
218 if (strncmp(savestateMessage, format, strlen(savestateMessage)) == 0) {
219 va_list argc;
220 va_copy(argc, args);
221 int slot = va_arg(argc, int);
222 va_end(argc);
223 if (slot == 0) {
224 format = "Loaded suspend state";
225 }
226 } else if (strncmp(savestateFailedMessage, format, strlen(savestateFailedMessage)) == 0) {
227 va_list argc;
228 va_copy(argc, args);
229 int slot = va_arg(argc, int);
230 va_end(argc);
231 if (slot == 0) {
232 return;
233 }
234 }
235 message = QString().vsprintf(format, args);
236 QMetaObject::invokeMethod(controller, "statusPosted", Q_ARG(const QString&, message));
237 }
238 if (level == mLOG_FATAL) {
239 mCoreThreadMarkCrashed(controller->thread());
240 QMetaObject::invokeMethod(controller, "crashGame", Q_ARG(const QString&, QString().vsprintf(format, args)));
241 } else if (!(controller->m_logLevels & level)) {
242 return;
243 }
244 message = QString().vsprintf(format, args);
245 QMetaObject::invokeMethod(controller, "postLog", Q_ARG(int, level), Q_ARG(int, category), Q_ARG(const QString&, message));
246 };
247
248 m_threadContext.userData = this;
249
250 connect(this, &GameController::gamePaused, m_audioProcessor, &AudioProcessor::pause);
251 connect(this, &GameController::gameStarted, m_audioProcessor, &AudioProcessor::setInput);
252 connect(this, &GameController::frameAvailable, this, &GameController::pollEvents);
253 connect(this, &GameController::frameAvailable, this, &GameController::updateAutofire);
254}
255
256GameController::~GameController() {
257 disconnect();
258 closeGame();
259 clearMultiplayerController();
260 delete m_backupLoadState;
261}
262
263void GameController::setMultiplayerController(MultiplayerController* controller) {
264 if (controller == m_multiplayer) {
265 return;
266 }
267 clearMultiplayerController();
268 m_multiplayer = controller;
269 if (isLoaded()) {
270 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* thread) {
271 GameController* controller = static_cast<GameController*>(thread->userData);
272 controller->m_multiplayer->attachGame(controller);
273 });
274 }
275}
276
277void GameController::clearMultiplayerController() {
278 if (!m_multiplayer) {
279 return;
280 }
281 m_multiplayer->detachGame(this);
282 m_multiplayer = nullptr;
283}
284
285void GameController::setOverride(Override* override) {
286 m_override = override;
287 if (isLoaded()) {
288 Interrupter interrupter(this);
289 m_override->identify(m_threadContext.core);
290 }
291}
292
293void GameController::clearOverride() {
294 delete m_override;
295 m_override = nullptr;
296}
297
298void GameController::setConfig(const mCoreConfig* config) {
299 m_config = config;
300 if (isLoaded()) {
301 Interrupter interrupter(this);
302 mCoreLoadForeignConfig(m_threadContext.core, config);
303 m_audioSync = m_threadContext.sync.audioWait;
304 m_videoSync = m_threadContext.sync.videoFrameWait;
305 m_audioProcessor->setInput(&m_threadContext);
306 }
307}
308
309#ifdef USE_DEBUGGERS
310mDebugger* GameController::debugger() {
311 if (!isLoaded()) {
312 return nullptr;
313 }
314 return m_threadContext.core->debugger;
315}
316
317void GameController::setDebugger(mDebugger* debugger) {
318 Interrupter interrupter(this);
319 if (debugger) {
320 mDebuggerAttach(debugger, m_threadContext.core);
321 } else {
322 m_threadContext.core->detachDebugger(m_threadContext.core);
323 }
324}
325#endif
326
327void GameController::loadGame(const QString& path) {
328 closeGame();
329 QFileInfo info(path);
330 if (!info.isReadable()) {
331 QString fname = info.fileName();
332 QString base = info.path();
333 if (base.endsWith("/") || base.endsWith(QDir::separator())) {
334 base.chop(1);
335 }
336 VDir* dir = VDirOpenArchive(base.toUtf8().constData());
337 if (dir) {
338 VFile* vf = dir->openFile(dir, fname.toUtf8().constData(), O_RDONLY);
339 if (vf) {
340 struct VFile* vfclone = VFileMemChunk(NULL, vf->size(vf));
341 uint8_t buffer[2048];
342 ssize_t read;
343 while ((read = vf->read(vf, buffer, sizeof(buffer))) > 0) {
344 vfclone->write(vfclone, buffer, read);
345 }
346 vf->close(vf);
347 vf = vfclone;
348 }
349 dir->close(dir);
350 loadGame(vf, fname, base);
351 } else {
352 LOG(QT, ERROR) << tr("Failed to open game file: %1").arg(path);
353 }
354 return;
355 } else {
356 m_fname = info.canonicalFilePath();
357 m_fsub = QString();
358 }
359 m_vf = nullptr;
360 openGame();
361}
362
363void GameController::loadGame(VFile* vf, const QString& path, const QString& base) {
364 closeGame();
365 QFileInfo info(base);
366 if (info.isDir()) {
367 m_fname = QFileInfo(base + '/' + path).canonicalFilePath();
368 m_fsub = QString();
369 } else {
370 m_fname = info.canonicalFilePath();
371 m_fsub = path;
372 }
373 m_vf = vf;
374 openGame();
375}
376
377void GameController::bootBIOS() {
378 closeGame();
379 m_fname = QString();
380 openGame(true);
381}
382
383void GameController::openGame(bool biosOnly) {
384 if (m_fname.isEmpty()) {
385 biosOnly = true;
386 }
387 if (isLoaded()) {
388 // We need to delay if the game is still cleaning up
389 QTimer::singleShot(10, this, SLOT(openGame()));
390 return;
391 } else if(m_gameOpen) {
392 cleanGame();
393 }
394
395 m_threadContext.core = nullptr;
396 if (!biosOnly) {
397 if (m_vf) {
398 m_threadContext.core = mCoreFindVF(m_vf);
399 } else {
400 m_threadContext.core = mCoreFind(m_fname.toUtf8().constData());
401 }
402#ifdef M_CORE_GBA
403 } else {
404 m_threadContext.core = GBACoreCreate();
405#endif
406 }
407
408 if (!m_threadContext.core) {
409 return;
410 }
411
412 m_pauseAfterFrame = false;
413
414 if (m_turbo) {
415 m_threadContext.sync.videoFrameWait = false;
416 m_threadContext.sync.audioWait = false;
417 } else {
418 m_threadContext.sync.videoFrameWait = m_videoSync;
419 m_threadContext.sync.audioWait = m_audioSync;
420 }
421 m_threadContext.core->init(m_threadContext.core);
422 mCoreInitConfig(m_threadContext.core, nullptr);
423
424 unsigned width, height;
425 m_threadContext.core->desiredVideoDimensions(m_threadContext.core, &width, &height);
426 m_drawContext = new uint32_t[width * height];
427 m_frontBuffer = new uint32_t[width * height];
428
429 if (m_config) {
430 mCoreLoadForeignConfig(m_threadContext.core, m_config);
431 }
432
433 QByteArray bytes;
434 if (!biosOnly) {
435 bytes = m_fname.toUtf8();
436 if (m_preload) {
437 if (m_vf) {
438 mCorePreloadVF(m_threadContext.core, m_vf);
439 } else {
440 mCorePreloadFile(m_threadContext.core, bytes.constData());
441 mDirectorySetDetachBase(&m_threadContext.core->dirs);
442 }
443 } else {
444 if (m_vf) {
445 m_threadContext.core->loadROM(m_threadContext.core, m_vf);
446 } else {
447 mCoreLoadFile(m_threadContext.core, bytes.constData());
448 mDirectorySetDetachBase(&m_threadContext.core->dirs);
449 }
450 }
451 } else {
452 bytes = m_bios.toUtf8();
453 }
454 if (bytes.isNull()) {
455 return;
456 }
457
458 char dirname[PATH_MAX];
459 separatePath(bytes.constData(), dirname, m_threadContext.core->dirs.baseName, 0);
460 mDirectorySetAttachBase(&m_threadContext.core->dirs, VDirOpen(dirname));
461
462 m_threadContext.core->setVideoBuffer(m_threadContext.core, m_drawContext, width);
463
464 m_inputController->recalibrateAxes();
465 memset(m_drawContext, 0xF8, width * height * 4);
466
467 m_threadContext.core->setAVStream(m_threadContext.core, m_stream);
468
469 if (!biosOnly) {
470 mCoreAutoloadSave(m_threadContext.core);
471 if (!m_patch.isNull()) {
472 VFile* patch = VFileDevice::open(m_patch, O_RDONLY);
473 if (patch) {
474 m_threadContext.core->loadPatch(m_threadContext.core, patch);
475 }
476 patch->close(patch);
477 } else {
478 mCoreAutoloadPatch(m_threadContext.core);
479 }
480 }
481 m_vf = nullptr;
482
483 if (!mCoreThreadStart(&m_threadContext)) {
484 emit gameFailed();
485 }
486}
487
488void GameController::loadBIOS(int platform, const QString& path) {
489 if (m_bios == path) {
490 return;
491 }
492 if (!m_bios.isNull() && m_gameOpen && this->platform() == platform) {
493 closeGame();
494 m_bios = path;
495 openGame();
496 } else if (!m_gameOpen || m_bios.isNull()) {
497 m_bios = path;
498 }
499}
500
501void GameController::loadSave(const QString& path, bool temporary) {
502 if (!isLoaded()) {
503 return;
504 }
505 m_resetActions.append([this, path, temporary]() {
506 VFile* vf = VFileDevice::open(path, temporary ? O_RDONLY : O_RDWR);
507 if (!vf) {
508 LOG(QT, ERROR) << tr("Failed to open save file: %1").arg(path);
509 return;
510 }
511
512 if (temporary) {
513 m_threadContext.core->loadTemporarySave(m_threadContext.core, vf);
514 } else {
515 m_threadContext.core->loadSave(m_threadContext.core, vf);
516 }
517 });
518 reset();
519}
520
521void GameController::yankPak() {
522 if (!m_gameOpen) {
523 return;
524 }
525 Interrupter interrupter(this);
526 GBAYankROM(static_cast<GBA*>(m_threadContext.core->board));
527}
528
529void GameController::replaceGame(const QString& path) {
530 if (!m_gameOpen) {
531 return;
532 }
533
534 QFileInfo info(path);
535 if (!info.isReadable()) {
536 LOG(QT, ERROR) << tr("Failed to open game file: %1").arg(path);
537 return;
538 }
539 m_fname = info.canonicalFilePath();
540 Interrupter interrupter(this);
541 mDirectorySetDetachBase(&m_threadContext.core->dirs);
542 mCoreLoadFile(m_threadContext.core, m_fname.toLocal8Bit().constData());
543}
544
545void GameController::loadPatch(const QString& path) {
546 if (isLoaded()) {
547 closeGame();
548 }
549 if (m_gameOpen) {
550 QTimer::singleShot(10, this, [this, path]() {
551 loadPatch(path);
552 if (!m_gameOpen) {
553 openGame();
554 }
555 });
556 } else {
557 m_patch = path;
558 }
559}
560
561void GameController::importSharkport(const QString& path) {
562 if (!isLoaded()) {
563 return;
564 }
565#ifdef M_CORE_GBA
566 if (platform() != PLATFORM_GBA) {
567 return;
568 }
569 VFile* vf = VFileDevice::open(path, O_RDONLY);
570 if (!vf) {
571 LOG(QT, ERROR) << tr("Failed to open snapshot file for reading: %1").arg(path);
572 return;
573 }
574 threadInterrupt();
575 GBASavedataImportSharkPort(static_cast<GBA*>(m_threadContext.core->board), vf, false);
576 threadContinue();
577 vf->close(vf);
578#endif
579}
580
581void GameController::exportSharkport(const QString& path) {
582 if (!isLoaded()) {
583 return;
584 }
585#ifdef M_CORE_GBA
586 if (platform() != PLATFORM_GBA) {
587 return;
588 }
589 VFile* vf = VFileDevice::open(path, O_WRONLY | O_CREAT | O_TRUNC);
590 if (!vf) {
591 LOG(QT, ERROR) << tr("Failed to open snapshot file for writing: %1").arg(path);
592 return;
593 }
594 threadInterrupt();
595 GBASavedataExportSharkPort(static_cast<GBA*>(m_threadContext.core->board), vf);
596 threadContinue();
597 vf->close(vf);
598#endif
599}
600
601void GameController::closeGame() {
602 if (!m_gameOpen) {
603 return;
604 }
605#ifdef USE_DEBUGGERS
606 setDebugger(nullptr);
607#endif
608 if (mCoreThreadIsPaused(&m_threadContext)) {
609 mCoreThreadUnpause(&m_threadContext);
610 }
611 mCoreThreadEnd(&m_threadContext);
612}
613
614void GameController::cleanGame() {
615 if (!m_gameOpen || mCoreThreadIsActive(&m_threadContext)) {
616 return;
617 }
618
619 m_audioProcessor->pause();
620 mCoreThreadJoin(&m_threadContext);
621
622 if (m_tileCache) {
623 mTileCacheDeinit(m_tileCache.get());
624 m_tileCache.reset();
625 }
626
627 delete[] m_drawContext;
628 delete[] m_frontBuffer;
629
630 mCoreConfigDeinit(&m_threadContext.core->config);
631 m_threadContext.core->deinit(m_threadContext.core);
632 m_threadContext.core = nullptr;
633 m_gameOpen = false;
634}
635
636void GameController::crashGame(const QString& crashMessage) {
637 closeGame();
638 emit gameCrashed(crashMessage);
639}
640
641bool GameController::isPaused() {
642 if (!m_gameOpen) {
643 return false;
644 }
645 return mCoreThreadIsPaused(&m_threadContext);
646}
647
648mPlatform GameController::platform() const {
649 if (!m_gameOpen) {
650 return PLATFORM_NONE;
651 }
652 return m_threadContext.core->platform(m_threadContext.core);
653}
654
655QSize GameController::screenDimensions() const {
656 if (!m_gameOpen) {
657 return QSize();
658 }
659 unsigned width, height;
660 m_threadContext.core->desiredVideoDimensions(m_threadContext.core, &width, &height);
661
662 return QSize(width, height);
663}
664
665void GameController::setPaused(bool paused) {
666 if (!isLoaded() || paused == mCoreThreadIsPaused(&m_threadContext)) {
667 return;
668 }
669 m_wasPaused = paused;
670 if (paused) {
671 m_pauseAfterFrame.testAndSetRelaxed(false, true);
672 } else {
673 mCoreThreadUnpause(&m_threadContext);
674 startAudio();
675 emit gameUnpaused(&m_threadContext);
676 }
677}
678
679void GameController::reset() {
680 if (!m_gameOpen) {
681 return;
682 }
683 bool wasPaused = isPaused();
684 setPaused(false);
685 Interrupter interrupter(this);
686 mCoreThreadReset(&m_threadContext);
687 if (wasPaused) {
688 setPaused(true);
689 }
690}
691
692void GameController::threadInterrupt() {
693 if (m_gameOpen) {
694 mCoreThreadInterrupt(&m_threadContext);
695 }
696}
697
698void GameController::threadContinue() {
699 if (m_gameOpen) {
700 mCoreThreadContinue(&m_threadContext);
701 }
702}
703
704void GameController::frameAdvance() {
705 if (m_pauseAfterFrame.testAndSetRelaxed(false, true)) {
706 setPaused(false);
707 m_wasPaused = true;
708 }
709}
710
711void GameController::setRewind(bool enable, int capacity, bool rewindSave) {
712 if (m_gameOpen) {
713 Interrupter interrupter(this);
714 if (m_threadContext.core->opts.rewindEnable && m_threadContext.core->opts.rewindBufferCapacity > 0) {
715 mCoreRewindContextDeinit(&m_threadContext.rewind);
716 }
717 m_threadContext.core->opts.rewindEnable = enable;
718 m_threadContext.core->opts.rewindBufferCapacity = capacity;
719 m_threadContext.core->opts.rewindSave = rewindSave;
720 if (enable && capacity > 0) {
721 mCoreRewindContextInit(&m_threadContext.rewind, capacity, true);
722 m_threadContext.rewind.stateFlags = rewindSave ? SAVESTATE_SAVEDATA : 0;
723 }
724 }
725}
726
727void GameController::rewind(int states) {
728 threadInterrupt();
729 if (!states) {
730 states = INT_MAX;
731 }
732 for (int i = 0; i < states; ++i) {
733 if (!mCoreRewindRestore(&m_threadContext.rewind, m_threadContext.core)) {
734 break;
735 }
736 }
737 threadContinue();
738 emit frameAvailable(m_drawContext);
739 emit rewound(&m_threadContext);
740}
741
742void GameController::startRewinding() {
743 if (!isLoaded()) {
744 return;
745 }
746 if (!m_threadContext.core->opts.rewindEnable) {
747 return;
748 }
749 if (m_multiplayer && m_multiplayer->attached() > 1) {
750 return;
751 }
752 if (m_wasPaused) {
753 setPaused(false);
754 m_wasPaused = true;
755 }
756 mCoreThreadSetRewinding(&m_threadContext, true);
757}
758
759void GameController::stopRewinding() {
760 if (!isLoaded()) {
761 return;
762 }
763 mCoreThreadSetRewinding(&m_threadContext, false);
764 bool signalsBlocked = blockSignals(true);
765 setPaused(m_wasPaused);
766 blockSignals(signalsBlocked);
767}
768
769void GameController::keyPressed(int key) {
770 int mappedKey = 1 << key;
771 m_activeKeys |= mappedKey;
772 if (!m_inputController->allowOpposing()) {
773 if ((m_activeKeys & 0x30) == 0x30) {
774 m_inactiveKeys |= mappedKey ^ 0x30;
775 m_activeKeys ^= mappedKey ^ 0x30;
776 }
777 if ((m_activeKeys & 0xC0) == 0xC0) {
778 m_inactiveKeys |= mappedKey ^ 0xC0;
779 m_activeKeys ^= mappedKey ^ 0xC0;
780 }
781 }
782 updateKeys();
783}
784
785void GameController::keyReleased(int key) {
786 int mappedKey = 1 << key;
787 m_activeKeys &= ~mappedKey;
788 if (!m_inputController->allowOpposing()) {
789 if (mappedKey & 0x30) {
790 m_activeKeys |= m_inactiveKeys & (0x30 ^ mappedKey);
791 m_inactiveKeys &= ~0x30;
792 }
793 if (mappedKey & 0xC0) {
794 m_activeKeys |= m_inactiveKeys & (0xC0 ^ mappedKey);
795 m_inactiveKeys &= ~0xC0;
796 }
797 }
798 updateKeys();
799}
800
801void GameController::clearKeys() {
802 m_activeKeys = 0;
803 m_inactiveKeys = 0;
804 updateKeys();
805}
806
807void GameController::setAutofire(int key, bool enable) {
808 if (key >= GBA_KEY_MAX || key < 0) {
809 return;
810 }
811
812 if (!enable && m_autofireStatus[key]) {
813 keyReleased(key);
814 }
815
816 m_autofire[key] = enable;
817 m_autofireStatus[key] = 0;
818}
819
820void GameController::setAudioBufferSamples(int samples) {
821 if (m_audioProcessor) {
822 threadInterrupt();
823 redoSamples(samples);
824 threadContinue();
825 m_audioProcessor->setBufferSamples(samples);
826 }
827}
828
829void GameController::setAudioSampleRate(unsigned rate) {
830 if (!rate) {
831 return;
832 }
833 if (m_audioProcessor) {
834 threadInterrupt();
835 redoSamples(m_audioProcessor->getBufferSamples());
836 threadContinue();
837 m_audioProcessor->requestSampleRate(rate);
838 }
839}
840
841void GameController::setAudioChannelEnabled(int channel, bool enable) {
842 if (channel > 5 || channel < 0) {
843 return;
844 }
845 m_audioChannels.reserve(channel + 1);
846 while (m_audioChannels.size() <= channel) {
847 m_audioChannels.append(true);
848 }
849 m_audioChannels[channel] = enable;
850 if (isLoaded()) {
851 m_threadContext.core->enableAudioChannel(m_threadContext.core, channel, enable);
852 }
853}
854
855void GameController::startAudio() {
856 if (!m_audioProcessor->start()) {
857 LOG(QT, ERROR) << tr("Failed to start audio processor");
858 // Don't freeze!
859 m_audioSync = false;
860 m_videoSync = true;
861 m_threadContext.sync.audioWait = false;
862 m_threadContext.sync.videoFrameWait = true;
863 }
864}
865
866void GameController::setVideoLayerEnabled(int layer, bool enable) {
867 if (layer > 4 || layer < 0) {
868 return;
869 }
870 m_videoLayers.reserve(layer + 1);
871 while (m_videoLayers.size() <= layer) {
872 m_videoLayers.append(true);
873 }
874 m_videoLayers[layer] = enable;
875 if (isLoaded()) {
876 m_threadContext.core->enableVideoLayer(m_threadContext.core, layer, enable);
877 }
878}
879
880void GameController::setFPSTarget(float fps) {
881 Interrupter interrupter(this);
882 m_fpsTarget = fps;
883 m_threadContext.sync.fpsTarget = fps;
884 if (m_turbo && m_turboSpeed > 0) {
885 m_threadContext.sync.fpsTarget *= m_turboSpeed;
886 }
887 if (m_audioProcessor) {
888 redoSamples(m_audioProcessor->getBufferSamples());
889 }
890}
891
892void GameController::setUseBIOS(bool use) {
893 if (use == m_useBios) {
894 return;
895 }
896 m_useBios = use;
897 if (m_gameOpen) {
898 closeGame();
899 openGame();
900 }
901}
902
903void GameController::loadState(int slot) {
904 if (m_fname.isEmpty()) {
905 // We're in the BIOS
906 return;
907 }
908 if (slot > 0 && slot != m_stateSlot) {
909 m_stateSlot = slot;
910 m_backupSaveState.clear();
911 }
912 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
913 GameController* controller = static_cast<GameController*>(context->userData);
914 if (!controller->m_backupLoadState) {
915 controller->m_backupLoadState = VFileMemChunk(nullptr, 0);
916 }
917 mCoreLoadStateNamed(context->core, controller->m_backupLoadState, controller->m_saveStateFlags);
918 if (mCoreLoadState(context->core, controller->m_stateSlot, controller->m_loadStateFlags)) {
919 emit controller->frameAvailable(controller->m_drawContext);
920 emit controller->stateLoaded(context);
921 }
922 });
923}
924
925void GameController::saveState(int slot) {
926 if (m_fname.isEmpty()) {
927 // We're in the BIOS
928 return;
929 }
930 if (slot > 0) {
931 m_stateSlot = slot;
932 }
933 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
934 GameController* controller = static_cast<GameController*>(context->userData);
935 VFile* vf = mCoreGetState(context->core, controller->m_stateSlot, false);
936 if (vf) {
937 controller->m_backupSaveState.resize(vf->size(vf));
938 vf->read(vf, controller->m_backupSaveState.data(), controller->m_backupSaveState.size());
939 vf->close(vf);
940 }
941 mCoreSaveState(context->core, controller->m_stateSlot, controller->m_saveStateFlags);
942 });
943}
944
945void GameController::loadBackupState() {
946 if (!m_backupLoadState) {
947 return;
948 }
949
950 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
951 GameController* controller = static_cast<GameController*>(context->userData);
952 controller->m_backupLoadState->seek(controller->m_backupLoadState, 0, SEEK_SET);
953 if (mCoreLoadStateNamed(context->core, controller->m_backupLoadState, controller->m_loadStateFlags)) {
954 mLOG(STATUS, INFO, "Undid state load");
955 controller->frameAvailable(controller->m_drawContext);
956 controller->stateLoaded(context);
957 }
958 controller->m_backupLoadState->close(controller->m_backupLoadState);
959 controller->m_backupLoadState = nullptr;
960 });
961}
962
963void GameController::saveBackupState() {
964 if (m_backupSaveState.isEmpty()) {
965 return;
966 }
967
968 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
969 GameController* controller = static_cast<GameController*>(context->userData);
970 VFile* vf = mCoreGetState(context->core, controller->m_stateSlot, true);
971 if (vf) {
972 vf->write(vf, controller->m_backupSaveState.constData(), controller->m_backupSaveState.size());
973 vf->close(vf);
974 mLOG(STATUS, INFO, "Undid state save");
975 }
976 controller->m_backupSaveState.clear();
977 });
978}
979
980void GameController::setTurbo(bool set, bool forced) {
981 if (m_turboForced && !forced) {
982 return;
983 }
984 if (m_turbo == set && m_turboForced == (set && forced)) {
985 // Don't interrupt the thread if we don't need to
986 return;
987 }
988 if (!m_sync) {
989 return;
990 }
991 m_turbo = set;
992 m_turboForced = set && forced;
993 enableTurbo();
994}
995
996void GameController::setTurboSpeed(float ratio) {
997 m_turboSpeed = ratio;
998 enableTurbo();
999}
1000
1001void GameController::enableTurbo() {
1002 Interrupter interrupter(this);
1003 bool shouldRedoSamples = false;
1004 if (!m_turbo) {
1005 shouldRedoSamples = m_threadContext.sync.fpsTarget != m_fpsTarget;
1006 m_threadContext.sync.fpsTarget = m_fpsTarget;
1007 m_threadContext.sync.audioWait = m_audioSync;
1008 m_threadContext.sync.videoFrameWait = m_videoSync;
1009 } else if (m_turboSpeed <= 0) {
1010 shouldRedoSamples = m_threadContext.sync.fpsTarget != m_fpsTarget;
1011 m_threadContext.sync.fpsTarget = m_fpsTarget;
1012 m_threadContext.sync.audioWait = false;
1013 m_threadContext.sync.videoFrameWait = false;
1014 } else {
1015 shouldRedoSamples = m_threadContext.sync.fpsTarget != m_fpsTarget * m_turboSpeed;
1016 m_threadContext.sync.fpsTarget = m_fpsTarget * m_turboSpeed;
1017 m_threadContext.sync.audioWait = true;
1018 m_threadContext.sync.videoFrameWait = false;
1019 }
1020 if (m_audioProcessor && shouldRedoSamples) {
1021 redoSamples(m_audioProcessor->getBufferSamples());
1022 }
1023}
1024
1025void GameController::setSync(bool enable) {
1026 m_turbo = false;
1027 m_turboForced = false;
1028 if (!enable) {
1029 m_threadContext.sync.audioWait = false;
1030 m_threadContext.sync.videoFrameWait = false;
1031 } else {
1032 m_threadContext.sync.audioWait = m_audioSync;
1033 m_threadContext.sync.videoFrameWait = m_videoSync;
1034 }
1035 m_sync = enable;
1036}
1037
1038void GameController::setAudioSync(bool enable) {
1039 m_audioSync = enable;
1040 m_threadContext.sync.audioWait = enable;
1041}
1042
1043void GameController::setVideoSync(bool enable) {
1044 m_videoSync = enable;
1045 m_threadContext.sync.videoFrameWait = enable;
1046}
1047
1048void GameController::setAVStream(mAVStream* stream) {
1049 Interrupter interrupter(this);
1050 m_stream = stream;
1051 if (isLoaded()) {
1052 m_threadContext.core->setAVStream(m_threadContext.core, stream);
1053 }
1054}
1055
1056void GameController::clearAVStream() {
1057 Interrupter interrupter(this);
1058 m_stream = nullptr;
1059 if (isLoaded()) {
1060 m_threadContext.core->setAVStream(m_threadContext.core, nullptr);
1061 }
1062}
1063
1064#ifdef USE_PNG
1065void GameController::screenshot() {
1066 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
1067 mCoreTakeScreenshot(context->core);
1068 });
1069}
1070#endif
1071
1072void GameController::reloadAudioDriver() {
1073 int samples = 0;
1074 unsigned sampleRate = 0;
1075 if (m_audioProcessor) {
1076 m_audioProcessor->pause();
1077 samples = m_audioProcessor->getBufferSamples();
1078 sampleRate = m_audioProcessor->sampleRate();
1079 delete m_audioProcessor;
1080 }
1081 m_audioProcessor = AudioProcessor::create();
1082 if (samples) {
1083 m_audioProcessor->setBufferSamples(samples);
1084 }
1085 if (sampleRate) {
1086 m_audioProcessor->requestSampleRate(sampleRate);
1087 }
1088 connect(this, &GameController::gamePaused, m_audioProcessor, &AudioProcessor::pause);
1089 connect(this, &GameController::gameStarted, m_audioProcessor, &AudioProcessor::setInput);
1090 if (isLoaded()) {
1091 m_audioProcessor->setInput(&m_threadContext);
1092 startAudio();
1093 }
1094}
1095
1096void GameController::setSaveStateExtdata(int flags) {
1097 m_saveStateFlags = flags;
1098}
1099
1100void GameController::setLoadStateExtdata(int flags) {
1101 m_loadStateFlags = flags;
1102}
1103
1104void GameController::setPreload(bool preload) {
1105 m_preload = preload;
1106}
1107
1108void GameController::setLuminanceValue(uint8_t value) {
1109 m_luxValue = value;
1110 value = std::max<int>(value - 0x16, 0);
1111 m_luxLevel = 10;
1112 for (int i = 0; i < 10; ++i) {
1113 if (value < GBA_LUX_LEVELS[i]) {
1114 m_luxLevel = i;
1115 break;
1116 }
1117 }
1118 emit luminanceValueChanged(m_luxValue);
1119}
1120
1121void GameController::setLuminanceLevel(int level) {
1122 int value = 0x16;
1123 level = std::max(0, std::min(10, level));
1124 if (level > 0) {
1125 value += GBA_LUX_LEVELS[level - 1];
1126 }
1127 setLuminanceValue(value);
1128}
1129
1130void GameController::setRealTime() {
1131 if (!isLoaded()) {
1132 return;
1133 }
1134 m_threadContext.core->rtc.override = RTC_NO_OVERRIDE;
1135}
1136
1137void GameController::setFixedTime(const QDateTime& time) {
1138 if (!isLoaded()) {
1139 return;
1140 }
1141 m_threadContext.core->rtc.override = RTC_FIXED;
1142 m_threadContext.core->rtc.value = time.toMSecsSinceEpoch();
1143}
1144
1145void GameController::setFakeEpoch(const QDateTime& time) {
1146 if (!isLoaded()) {
1147 return;
1148 }
1149 m_threadContext.core->rtc.override = RTC_FAKE_EPOCH;
1150 m_threadContext.core->rtc.value = time.toMSecsSinceEpoch();
1151}
1152
1153void GameController::updateKeys() {
1154 int activeKeys = m_activeKeys;
1155 activeKeys |= m_activeButtons;
1156 activeKeys &= ~m_inactiveKeys;
1157 if (isLoaded()) {
1158 m_threadContext.core->setKeys(m_threadContext.core, activeKeys);
1159 }
1160}
1161
1162void GameController::redoSamples(int samples) {
1163 if (m_gameOpen && m_threadContext.core) {
1164 m_threadContext.core->setAudioBufferSize(m_threadContext.core, samples);
1165 }
1166 m_audioProcessor->inputParametersChanged();
1167}
1168
1169void GameController::setLogLevel(int levels) {
1170 Interrupter interrupter(this);
1171 m_logLevels = levels;
1172}
1173
1174void GameController::enableLogLevel(int levels) {
1175 Interrupter interrupter(this);
1176 m_logLevels |= levels;
1177}
1178
1179void GameController::disableLogLevel(int levels) {
1180 Interrupter interrupter(this);
1181 m_logLevels &= ~levels;
1182}
1183
1184void GameController::startVideoLog(const QString& path) {
1185 if (!isLoaded() || m_vl) {
1186 return;
1187 }
1188
1189 Interrupter interrupter(this);
1190 m_vl = mVideoLogContextCreate(m_threadContext.core);
1191 m_vlVf = VFileDevice::open(path, O_WRONLY | O_CREAT | O_TRUNC);
1192 mVideoLogContextSetOutput(m_vl, m_vlVf);
1193 mVideoLogContextWriteHeader(m_vl, m_threadContext.core);
1194}
1195
1196void GameController::endVideoLog() {
1197 if (!m_vl) {
1198 return;
1199 }
1200
1201 Interrupter interrupter(this);
1202 mVideoLogContextDestroy(m_threadContext.core, m_vl);
1203 if (m_vlVf) {
1204 m_vlVf->close(m_vlVf);
1205 m_vlVf = nullptr;
1206 }
1207 m_vl = nullptr;
1208}
1209
1210void GameController::pollEvents() {
1211 if (!m_inputController) {
1212 return;
1213 }
1214
1215 m_activeButtons = m_inputController->pollEvents();
1216 updateKeys();
1217}
1218
1219void GameController::updateAutofire() {
1220 // TODO: Move all key events onto the CPU thread...somehow
1221 for (int k = 0; k < GBA_KEY_MAX; ++k) {
1222 if (!m_autofire[k]) {
1223 continue;
1224 }
1225 m_autofireStatus[k] ^= 1;
1226 if (m_autofireStatus[k]) {
1227 keyPressed(k);
1228 } else {
1229 keyReleased(k);
1230 }
1231 }
1232}
1233
1234std::shared_ptr<mTileCache> GameController::tileCache() {
1235 if (m_tileCache) {
1236 return m_tileCache;
1237 }
1238 Interrupter interrupter(this);
1239 switch (platform()) {
1240#ifdef M_CORE_GBA
1241 case PLATFORM_GBA: {
1242 GBA* gba = static_cast<GBA*>(m_threadContext.core->board);
1243 m_tileCache = std::make_shared<mTileCache>();
1244 GBAVideoTileCacheInit(m_tileCache.get());
1245 GBAVideoTileCacheAssociate(m_tileCache.get(), &gba->video);
1246 mTileCacheSetPalette(m_tileCache.get(), 0);
1247 break;
1248 }
1249#endif
1250#ifdef M_CORE_GB
1251 case PLATFORM_GB: {
1252 GB* gb = static_cast<GB*>(m_threadContext.core->board);
1253 m_tileCache = std::make_shared<mTileCache>();
1254 GBVideoTileCacheInit(m_tileCache.get());
1255 GBVideoTileCacheAssociate(m_tileCache.get(), &gb->video);
1256 mTileCacheSetPalette(m_tileCache.get(), 0);
1257 break;
1258 }
1259#endif
1260 default:
1261 return nullptr;
1262 }
1263 return m_tileCache;
1264}
1265
1266GameController::Interrupter::Interrupter(GameController* parent, bool fromThread)
1267 : m_parent(parent)
1268 , m_fromThread(fromThread)
1269{
1270 if (!m_fromThread) {
1271 m_parent->threadInterrupt();
1272 } else {
1273 mCoreThreadInterruptFromThread(m_parent->thread());
1274 }
1275}
1276
1277GameController::Interrupter::~Interrupter() {
1278 if (!m_fromThread) {
1279 m_parent->threadContinue();
1280 } else {
1281 mCoreThreadContinue(m_parent->thread());
1282 }
1283}