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 "VFileDevice.h"
13
14#include <QCoreApplication>
15#include <QDateTime>
16
17#include <ctime>
18
19#include <mgba/core/config.h>
20#include <mgba/core/directories.h>
21#include <mgba/core/serialize.h>
22#include <mgba/core/tile-cache.h>
23#ifdef M_CORE_GBA
24#include <mgba/gba/interface.h>
25#include <mgba/internal/gba/gba.h>
26#include <mgba/gba/core.h>
27#include <mgba/internal/gba/renderers/tile-cache.h>
28#include <mgba/internal/gba/sharkport.h>
29#endif
30#ifdef M_CORE_GB
31#include <mgba/internal/gb/gb.h>
32#include <mgba/internal/gb/renderers/tile-cache.h>
33#endif
34#include <mgba-util/vfs.h>
35#include <mgba/feature/video-logger.h>
36
37using namespace QGBA;
38using namespace std;
39
40GameController::GameController(QObject* parent)
41 : QObject(parent)
42 , m_drawContext(nullptr)
43 , m_frontBuffer(nullptr)
44 , m_threadContext()
45 , m_activeKeys(0)
46 , m_inactiveKeys(0)
47 , m_logLevels(0)
48 , m_gameOpen(false)
49 , m_vf(nullptr)
50 , m_useBios(false)
51 , m_audioProcessor(AudioProcessor::create())
52 , m_pauseAfterFrame(false)
53 , m_sync(true)
54 , m_videoSync(VIDEO_SYNC)
55 , m_audioSync(AUDIO_SYNC)
56 , m_fpsTarget(-1)
57 , m_turbo(false)
58 , m_turboForced(false)
59 , m_turboSpeed(-1)
60 , m_wasPaused(false)
61 , m_audioChannels()
62 , m_videoLayers()
63 , m_autofire{}
64 , m_autofireStatus{}
65 , m_inputController(nullptr)
66 , m_multiplayer(nullptr)
67 , m_stream(nullptr)
68 , m_stateSlot(1)
69 , m_backupLoadState(nullptr)
70 , m_backupSaveState(nullptr)
71 , m_saveStateFlags(SAVESTATE_SCREENSHOT | SAVESTATE_SAVEDATA | SAVESTATE_CHEATS | SAVESTATE_RTC)
72 , m_loadStateFlags(SAVESTATE_SCREENSHOT | SAVESTATE_RTC)
73 , m_preload(false)
74 , m_override(nullptr)
75 , m_vl(nullptr)
76 , m_vlVf(nullptr)
77{
78#ifdef M_CORE_GBA
79 m_lux.p = this;
80 m_lux.sample = [](GBALuminanceSource* context) {
81 GameControllerLux* lux = static_cast<GameControllerLux*>(context);
82 lux->value = 0xFF - lux->p->m_luxValue;
83 };
84
85 m_lux.readLuminance = [](GBALuminanceSource* context) {
86 GameControllerLux* lux = static_cast<GameControllerLux*>(context);
87 return lux->value;
88 };
89 setLuminanceLevel(0);
90#endif
91
92 m_threadContext.startCallback = [](mCoreThread* context) {
93 GameController* controller = static_cast<GameController*>(context->userData);
94 context->core->setPeripheral(context->core, mPERIPH_ROTATION, controller->m_inputController->rotationSource());
95 context->core->setPeripheral(context->core, mPERIPH_RUMBLE, controller->m_inputController->rumble());
96
97 for (size_t i = 0; i < controller->m_audioChannels.size(); ++i) {
98 context->core->enableAudioChannel(context->core, i, controller->m_audioChannels[i]);
99 }
100 for (size_t i = 0; i < controller->m_videoLayers.size(); ++i) {
101 context->core->enableVideoLayer(context->core, i, controller->m_videoLayers[i]);
102 }
103
104 switch (context->core->platform(context->core)) {
105#ifdef M_CORE_GBA
106 case PLATFORM_GBA:
107 context->core->setPeripheral(context->core, mPERIPH_GBA_LUMINANCE, &controller->m_lux);
108 break;
109#endif
110 default:
111 break;
112 }
113 controller->m_fpsTarget = context->sync.fpsTarget;
114
115 if (controller->m_override) {
116 controller->m_override->identify(context->core);
117 controller->m_override->apply(context->core);
118 }
119
120 if (mCoreLoadState(context->core, 0, controller->m_loadStateFlags)) {
121 mCoreDeleteState(context->core, 0);
122 }
123
124 controller->m_gameOpen = true;
125 if (controller->m_multiplayer) {
126 controller->m_multiplayer->attachGame(controller);
127 }
128
129 QString path = controller->m_fname;
130 if (!controller->m_fsub.isEmpty()) {
131 path += QDir::separator() + controller->m_fsub;
132 }
133 QMetaObject::invokeMethod(controller, "gameStarted", Q_ARG(mCoreThread*, context), Q_ARG(const QString&, path));
134 QMetaObject::invokeMethod(controller, "startAudio");
135 };
136
137 m_threadContext.resetCallback = [](mCoreThread* context) {
138 GameController* controller = static_cast<GameController*>(context->userData);
139 for (auto action : controller->m_resetActions) {
140 action();
141 }
142 controller->m_resetActions.clear();
143
144 unsigned width, height;
145 controller->m_threadContext.core->desiredVideoDimensions(controller->m_threadContext.core, &width, &height);
146 memset(controller->m_frontBuffer, 0xFF, width * height * BYTES_PER_PIXEL);
147 QMetaObject::invokeMethod(controller, "frameAvailable", Q_ARG(const uint32_t*, controller->m_frontBuffer));
148 if (controller->m_pauseAfterFrame.testAndSetAcquire(true, false)) {
149 mCoreThreadPauseFromThread(context);
150 QMetaObject::invokeMethod(controller, "gamePaused", Q_ARG(mCoreThread*, context));
151 }
152 };
153
154 m_threadContext.cleanCallback = [](mCoreThread* context) {
155 GameController* controller = static_cast<GameController*>(context->userData);
156
157 if (controller->m_multiplayer) {
158 controller->m_multiplayer->detachGame(controller);
159 }
160 controller->m_patch = QString();
161 controller->clearOverride();
162 controller->endVideoLog();
163
164 QMetaObject::invokeMethod(controller->m_audioProcessor, "pause");
165
166 QMetaObject::invokeMethod(controller, "gameStopped", Q_ARG(mCoreThread*, context));
167 QMetaObject::invokeMethod(controller, "cleanGame");
168 };
169
170 m_threadContext.frameCallback = [](mCoreThread* context) {
171 GameController* controller = static_cast<GameController*>(context->userData);
172 unsigned width, height;
173 controller->m_threadContext.core->desiredVideoDimensions(controller->m_threadContext.core, &width, &height);
174 memcpy(controller->m_frontBuffer, controller->m_drawContext, width * height * BYTES_PER_PIXEL);
175 QMetaObject::invokeMethod(controller, "frameAvailable", Q_ARG(const uint32_t*, controller->m_frontBuffer));
176
177 // If no one is using the tile cache, disable it
178 if (controller->m_tileCache && controller->m_tileCache.unique()) {
179 switch (controller->platform()) {
180#ifdef M_CORE_GBA
181 case PLATFORM_GBA: {
182 GBA* gba = static_cast<GBA*>(context->core->board);
183 gba->video.renderer->cache = nullptr;
184 break;
185 }
186#endif
187#ifdef M_CORE_GB
188 case PLATFORM_GB: {
189 GB* gb = static_cast<GB*>(context->core->board);
190 gb->video.renderer->cache = nullptr;
191 break;
192 }
193#endif
194 default:
195 break;
196 }
197 controller->m_tileCache.reset();
198 }
199
200
201 if (controller->m_pauseAfterFrame.testAndSetAcquire(true, false)) {
202 mCoreThreadPauseFromThread(context);
203 QMetaObject::invokeMethod(controller, "gamePaused", Q_ARG(mCoreThread*, context));
204 }
205 };
206
207 m_threadContext.sleepCallback = [](mCoreThread* context) {
208 if (!context) {
209 return;
210 }
211 GameController* controller = static_cast<GameController*>(context->userData);
212 if (!mCoreSaveState(context->core, 0, controller->m_saveStateFlags)) {
213 return;
214 }
215 QMetaObject::invokeMethod(controller, "closeGame");
216 };
217
218 m_threadContext.logger.d.log = [](mLogger* logger, int category, enum mLogLevel level, const char* format, va_list args) {
219 mThreadLogger* logContext = reinterpret_cast<mThreadLogger*>(logger);
220 mCoreThread* context = logContext->p;
221
222 static const char* savestateMessage = "State %i loaded";
223 static const char* savestateFailedMessage = "State %i failed to load";
224 static int biosCat = -1;
225 static int statusCat = -1;
226 if (!context) {
227 return;
228 }
229 GameController* controller = static_cast<GameController*>(context->userData);
230 QString message;
231 if (biosCat < 0) {
232 biosCat = mLogCategoryById("gba.bios");
233 }
234 if (statusCat < 0) {
235 statusCat = mLogCategoryById("core.status");
236 }
237#ifdef M_CORE_GBA
238 if (level == mLOG_STUB && category == biosCat) {
239 va_list argc;
240 va_copy(argc, args);
241 int immediate = va_arg(argc, int);
242 va_end(argc);
243 QMetaObject::invokeMethod(controller, "unimplementedBiosCall", Q_ARG(int, immediate));
244 } else
245#endif
246 if (category == statusCat) {
247 // Slot 0 is reserved for suspend points
248 if (strncmp(savestateMessage, format, strlen(savestateMessage)) == 0) {
249 va_list argc;
250 va_copy(argc, args);
251 int slot = va_arg(argc, int);
252 va_end(argc);
253 if (slot == 0) {
254 format = "Loaded suspend state";
255 }
256 } else if (strncmp(savestateFailedMessage, format, strlen(savestateFailedMessage)) == 0) {
257 va_list argc;
258 va_copy(argc, args);
259 int slot = va_arg(argc, int);
260 va_end(argc);
261 if (slot == 0) {
262 return;
263 }
264 }
265 message = QString().vsprintf(format, args);
266 QMetaObject::invokeMethod(controller, "statusPosted", Q_ARG(const QString&, message));
267 }
268 if (level == mLOG_FATAL) {
269 mCoreThreadMarkCrashed(controller->thread());
270 QMetaObject::invokeMethod(controller, "crashGame", Q_ARG(const QString&, QString().vsprintf(format, args)));
271 } else if (!(controller->m_logLevels & level)) {
272 return;
273 }
274 message = QString().vsprintf(format, args);
275 QMetaObject::invokeMethod(controller, "postLog", Q_ARG(int, level), Q_ARG(int, category), Q_ARG(const QString&, message));
276 };
277
278 m_threadContext.userData = this;
279
280 connect(this, &GameController::gamePaused, m_audioProcessor, &AudioProcessor::pause);
281 connect(this, &GameController::gameStarted, m_audioProcessor, &AudioProcessor::setInput);
282 connect(this, &GameController::frameAvailable, this, &GameController::pollEvents);
283 connect(this, &GameController::frameAvailable, this, &GameController::updateAutofire);
284}
285
286GameController::~GameController() {
287 disconnect();
288 closeGame();
289 clearMultiplayerController();
290 delete m_backupLoadState;
291}
292
293void GameController::setMultiplayerController(MultiplayerController* controller) {
294 if (controller == m_multiplayer) {
295 return;
296 }
297 clearMultiplayerController();
298 m_multiplayer = controller;
299 if (isLoaded()) {
300 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* thread) {
301 GameController* controller = static_cast<GameController*>(thread->userData);
302 controller->m_multiplayer->attachGame(controller);
303 });
304 }
305}
306
307void GameController::clearMultiplayerController() {
308 if (!m_multiplayer) {
309 return;
310 }
311 m_multiplayer->detachGame(this);
312 m_multiplayer = nullptr;
313}
314
315void GameController::setOverride(Override* override) {
316 m_override = override;
317 if (isLoaded()) {
318 Interrupter interrupter(this);
319 m_override->identify(m_threadContext.core);
320 }
321}
322
323void GameController::clearOverride() {
324 delete m_override;
325 m_override = nullptr;
326}
327
328void GameController::setConfig(const mCoreConfig* config) {
329 m_config = config;
330 if (isLoaded()) {
331 Interrupter interrupter(this);
332 mCoreLoadForeignConfig(m_threadContext.core, config);
333 m_audioSync = m_threadContext.sync.audioWait;
334 m_videoSync = m_threadContext.sync.videoFrameWait;
335 m_audioProcessor->setInput(&m_threadContext);
336 }
337}
338
339#ifdef USE_DEBUGGERS
340mDebugger* GameController::debugger() {
341 if (!isLoaded()) {
342 return nullptr;
343 }
344 return m_threadContext.core->debugger;
345}
346
347void GameController::setDebugger(mDebugger* debugger) {
348 Interrupter interrupter(this);
349 if (debugger) {
350 mDebuggerAttach(debugger, m_threadContext.core);
351 } else {
352 m_threadContext.core->detachDebugger(m_threadContext.core);
353 }
354}
355#endif
356
357void GameController::loadGame(const QString& path) {
358 closeGame();
359 QFileInfo info(path);
360 if (!info.isReadable()) {
361 QString fname = info.fileName();
362 QString base = info.path();
363 if (base.endsWith("/") || base.endsWith(QDir::separator())) {
364 base.chop(1);
365 }
366 VDir* dir = VDirOpenArchive(base.toUtf8().constData());
367 if (dir) {
368 VFile* vf = dir->openFile(dir, fname.toUtf8().constData(), O_RDONLY);
369 if (vf) {
370 struct VFile* vfclone = VFileMemChunk(NULL, vf->size(vf));
371 uint8_t buffer[2048];
372 ssize_t read;
373 while ((read = vf->read(vf, buffer, sizeof(buffer))) > 0) {
374 vfclone->write(vfclone, buffer, read);
375 }
376 vf->close(vf);
377 vf = vfclone;
378 }
379 dir->close(dir);
380 loadGame(vf, fname, base);
381 } else {
382 LOG(QT, ERROR) << tr("Failed to open game file: %1").arg(path);
383 }
384 return;
385 } else {
386 m_fname = info.canonicalFilePath();
387 m_fsub = QString();
388 }
389 m_vf = nullptr;
390 openGame();
391}
392
393void GameController::loadGame(VFile* vf, const QString& path, const QString& base) {
394 closeGame();
395 QFileInfo info(base);
396 if (info.isDir()) {
397 m_fname = QFileInfo(base + '/' + path).canonicalFilePath();
398 m_fsub = QString();
399 } else {
400 m_fname = info.canonicalFilePath();
401 m_fsub = path;
402 }
403 m_vf = vf;
404 openGame();
405}
406
407void GameController::bootBIOS() {
408 closeGame();
409 m_fname = QString();
410 openGame(true);
411}
412
413void GameController::openGame(bool biosOnly) {
414 if (m_fname.isEmpty()) {
415 biosOnly = true;
416 }
417 if (isLoaded()) {
418 // We need to delay if the game is still cleaning up
419 QTimer::singleShot(10, this, SLOT(openGame()));
420 return;
421 } else if(m_gameOpen) {
422 cleanGame();
423 }
424
425 m_threadContext.core = nullptr;
426 if (!biosOnly) {
427 if (m_vf) {
428 m_threadContext.core = mCoreFindVF(m_vf);
429 } else {
430 m_threadContext.core = mCoreFind(m_fname.toUtf8().constData());
431 }
432#ifdef M_CORE_GBA
433 } else {
434 m_threadContext.core = GBACoreCreate();
435#endif
436 }
437
438 if (!m_threadContext.core) {
439 return;
440 }
441
442 m_pauseAfterFrame = false;
443
444 if (m_turbo) {
445 m_threadContext.sync.videoFrameWait = false;
446 m_threadContext.sync.audioWait = false;
447 } else {
448 m_threadContext.sync.videoFrameWait = m_videoSync;
449 m_threadContext.sync.audioWait = m_audioSync;
450 }
451 m_threadContext.core->init(m_threadContext.core);
452 mCoreInitConfig(m_threadContext.core, nullptr);
453
454 unsigned width, height;
455 m_threadContext.core->desiredVideoDimensions(m_threadContext.core, &width, &height);
456 m_drawContext = new uint32_t[width * height];
457 m_frontBuffer = new uint32_t[width * height];
458
459 if (m_config) {
460 mCoreLoadForeignConfig(m_threadContext.core, m_config);
461 }
462
463 QByteArray bytes;
464 if (!biosOnly) {
465 bytes = m_fname.toUtf8();
466 if (m_preload) {
467 if (m_vf) {
468 mCorePreloadVF(m_threadContext.core, m_vf);
469 } else {
470 mCorePreloadFile(m_threadContext.core, bytes.constData());
471 mDirectorySetDetachBase(&m_threadContext.core->dirs);
472 }
473 } else {
474 if (m_vf) {
475 m_threadContext.core->loadROM(m_threadContext.core, m_vf);
476 } else {
477 mCoreLoadFile(m_threadContext.core, bytes.constData());
478 mDirectorySetDetachBase(&m_threadContext.core->dirs);
479 }
480 }
481 } else {
482 bytes = m_bios.toUtf8();
483 }
484 if (bytes.isNull()) {
485 return;
486 }
487
488 char dirname[PATH_MAX];
489 separatePath(bytes.constData(), dirname, m_threadContext.core->dirs.baseName, 0);
490 mDirectorySetAttachBase(&m_threadContext.core->dirs, VDirOpen(dirname));
491
492 m_threadContext.core->setVideoBuffer(m_threadContext.core, m_drawContext, width);
493
494 m_inputController->recalibrateAxes();
495 memset(m_drawContext, 0xF8, width * height * 4);
496
497 m_threadContext.core->setAVStream(m_threadContext.core, m_stream);
498
499 if (!biosOnly) {
500 mCoreAutoloadSave(m_threadContext.core);
501 if (!m_patch.isNull()) {
502 VFile* patch = VFileDevice::open(m_patch, O_RDONLY);
503 if (patch) {
504 m_threadContext.core->loadPatch(m_threadContext.core, patch);
505 }
506 patch->close(patch);
507 } else {
508 mCoreAutoloadPatch(m_threadContext.core);
509 }
510 }
511 m_vf = nullptr;
512
513 if (!mCoreThreadStart(&m_threadContext)) {
514 emit gameFailed();
515 }
516}
517
518void GameController::loadBIOS(int platform, const QString& path) {
519 if (m_bios == path) {
520 return;
521 }
522 if (!m_bios.isNull() && m_gameOpen && this->platform() == platform) {
523 closeGame();
524 m_bios = path;
525 openGame();
526 } else if (!m_gameOpen || m_bios.isNull()) {
527 m_bios = path;
528 }
529}
530
531void GameController::loadSave(const QString& path, bool temporary) {
532 if (!isLoaded()) {
533 return;
534 }
535 m_resetActions.append([this, path, temporary]() {
536 VFile* vf = VFileDevice::open(path, temporary ? O_RDONLY : O_RDWR);
537 if (!vf) {
538 LOG(QT, ERROR) << tr("Failed to open save file: %1").arg(path);
539 return;
540 }
541
542 if (temporary) {
543 m_threadContext.core->loadTemporarySave(m_threadContext.core, vf);
544 } else {
545 m_threadContext.core->loadSave(m_threadContext.core, vf);
546 }
547 });
548 reset();
549}
550
551void GameController::yankPak() {
552 if (!m_gameOpen) {
553 return;
554 }
555 Interrupter interrupter(this);
556 GBAYankROM(static_cast<GBA*>(m_threadContext.core->board));
557}
558
559void GameController::replaceGame(const QString& path) {
560 if (!m_gameOpen) {
561 return;
562 }
563
564 QFileInfo info(path);
565 if (!info.isReadable()) {
566 LOG(QT, ERROR) << tr("Failed to open game file: %1").arg(path);
567 return;
568 }
569 m_fname = info.canonicalFilePath();
570 Interrupter interrupter(this);
571 mDirectorySetDetachBase(&m_threadContext.core->dirs);
572 mCoreLoadFile(m_threadContext.core, m_fname.toLocal8Bit().constData());
573}
574
575void GameController::loadPatch(const QString& path) {
576 if (m_gameOpen) {
577 closeGame();
578 m_patch = path;
579 openGame();
580 } else {
581 m_patch = path;
582 }
583}
584
585void GameController::importSharkport(const QString& path) {
586 if (!isLoaded()) {
587 return;
588 }
589#ifdef M_CORE_GBA
590 if (platform() != PLATFORM_GBA) {
591 return;
592 }
593 VFile* vf = VFileDevice::open(path, O_RDONLY);
594 if (!vf) {
595 LOG(QT, ERROR) << tr("Failed to open snapshot file for reading: %1").arg(path);
596 return;
597 }
598 threadInterrupt();
599 GBASavedataImportSharkPort(static_cast<GBA*>(m_threadContext.core->board), vf, false);
600 threadContinue();
601 vf->close(vf);
602#endif
603}
604
605void GameController::exportSharkport(const QString& path) {
606 if (!isLoaded()) {
607 return;
608 }
609#ifdef M_CORE_GBA
610 if (platform() != PLATFORM_GBA) {
611 return;
612 }
613 VFile* vf = VFileDevice::open(path, O_WRONLY | O_CREAT | O_TRUNC);
614 if (!vf) {
615 LOG(QT, ERROR) << tr("Failed to open snapshot file for writing: %1").arg(path);
616 return;
617 }
618 threadInterrupt();
619 GBASavedataExportSharkPort(static_cast<GBA*>(m_threadContext.core->board), vf);
620 threadContinue();
621 vf->close(vf);
622#endif
623}
624
625void GameController::closeGame() {
626 if (!m_gameOpen) {
627 return;
628 }
629#ifdef USE_DEBUGGERS
630 setDebugger(nullptr);
631#endif
632 if (mCoreThreadIsPaused(&m_threadContext)) {
633 mCoreThreadUnpause(&m_threadContext);
634 }
635 mCoreThreadEnd(&m_threadContext);
636}
637
638void GameController::cleanGame() {
639 if (!m_gameOpen || mCoreThreadIsActive(&m_threadContext)) {
640 return;
641 }
642
643 m_audioProcessor->pause();
644 mCoreThreadJoin(&m_threadContext);
645
646 if (m_tileCache) {
647 mTileCacheDeinit(m_tileCache.get());
648 m_tileCache.reset();
649 }
650
651 delete[] m_drawContext;
652 delete[] m_frontBuffer;
653
654 mCoreConfigDeinit(&m_threadContext.core->config);
655 m_threadContext.core->deinit(m_threadContext.core);
656 m_threadContext.core = nullptr;
657 m_gameOpen = false;
658}
659
660void GameController::crashGame(const QString& crashMessage) {
661 closeGame();
662 emit gameCrashed(crashMessage);
663}
664
665bool GameController::isPaused() {
666 if (!m_gameOpen) {
667 return false;
668 }
669 return mCoreThreadIsPaused(&m_threadContext);
670}
671
672mPlatform GameController::platform() const {
673 if (!m_gameOpen) {
674 return PLATFORM_NONE;
675 }
676 return m_threadContext.core->platform(m_threadContext.core);
677}
678
679QSize GameController::screenDimensions() const {
680 if (!m_gameOpen) {
681 return QSize();
682 }
683 unsigned width, height;
684 m_threadContext.core->desiredVideoDimensions(m_threadContext.core, &width, &height);
685
686 return QSize(width, height);
687}
688
689void GameController::setPaused(bool paused) {
690 if (!isLoaded() || paused == mCoreThreadIsPaused(&m_threadContext)) {
691 return;
692 }
693 m_wasPaused = paused;
694 if (paused) {
695 m_pauseAfterFrame.testAndSetRelaxed(false, true);
696 } else {
697 mCoreThreadUnpause(&m_threadContext);
698 startAudio();
699 emit gameUnpaused(&m_threadContext);
700 }
701}
702
703void GameController::reset() {
704 if (!m_gameOpen) {
705 return;
706 }
707 bool wasPaused = isPaused();
708 setPaused(false);
709 Interrupter interrupter(this);
710 mCoreThreadReset(&m_threadContext);
711 if (wasPaused) {
712 setPaused(true);
713 }
714}
715
716void GameController::threadInterrupt() {
717 if (m_gameOpen) {
718 mCoreThreadInterrupt(&m_threadContext);
719 }
720}
721
722void GameController::threadContinue() {
723 if (m_gameOpen) {
724 mCoreThreadContinue(&m_threadContext);
725 }
726}
727
728void GameController::frameAdvance() {
729 if (m_pauseAfterFrame.testAndSetRelaxed(false, true)) {
730 setPaused(false);
731 }
732}
733
734void GameController::setRewind(bool enable, int capacity, bool rewindSave) {
735 if (m_gameOpen) {
736 Interrupter interrupter(this);
737 if (m_threadContext.core->opts.rewindEnable && m_threadContext.core->opts.rewindBufferCapacity > 0) {
738 mCoreRewindContextDeinit(&m_threadContext.rewind);
739 }
740 m_threadContext.core->opts.rewindEnable = enable;
741 m_threadContext.core->opts.rewindBufferCapacity = capacity;
742 m_threadContext.core->opts.rewindSave = rewindSave;
743 if (enable && capacity > 0) {
744 mCoreRewindContextInit(&m_threadContext.rewind, capacity, true);
745 m_threadContext.rewind.stateFlags = rewindSave ? SAVESTATE_SAVEDATA : 0;
746 }
747 }
748}
749
750void GameController::rewind(int states) {
751 threadInterrupt();
752 if (!states) {
753 states = INT_MAX;
754 }
755 for (int i = 0; i < states; ++i) {
756 if (!mCoreRewindRestore(&m_threadContext.rewind, m_threadContext.core)) {
757 break;
758 }
759 }
760 threadContinue();
761 emit frameAvailable(m_drawContext);
762 emit rewound(&m_threadContext);
763}
764
765void GameController::startRewinding() {
766 if (!isLoaded()) {
767 return;
768 }
769 if (!m_threadContext.core->opts.rewindEnable) {
770 return;
771 }
772 if (m_multiplayer && m_multiplayer->attached() > 1) {
773 return;
774 }
775 if (m_wasPaused) {
776 setPaused(false);
777 m_wasPaused = true;
778 }
779 mCoreThreadSetRewinding(&m_threadContext, true);
780}
781
782void GameController::stopRewinding() {
783 if (!isLoaded()) {
784 return;
785 }
786 mCoreThreadSetRewinding(&m_threadContext, false);
787 bool signalsBlocked = blockSignals(true);
788 setPaused(m_wasPaused);
789 blockSignals(signalsBlocked);
790}
791
792void GameController::keyPressed(int key) {
793 int mappedKey = 1 << key;
794 m_activeKeys |= mappedKey;
795 if (!m_inputController->allowOpposing()) {
796 if ((m_activeKeys & 0x30) == 0x30) {
797 m_inactiveKeys |= mappedKey ^ 0x30;
798 m_activeKeys ^= mappedKey ^ 0x30;
799 }
800 if ((m_activeKeys & 0xC0) == 0xC0) {
801 m_inactiveKeys |= mappedKey ^ 0xC0;
802 m_activeKeys ^= mappedKey ^ 0xC0;
803 }
804 }
805 updateKeys();
806}
807
808void GameController::keyReleased(int key) {
809 int mappedKey = 1 << key;
810 m_activeKeys &= ~mappedKey;
811 if (!m_inputController->allowOpposing()) {
812 if (mappedKey & 0x30) {
813 m_activeKeys |= m_inactiveKeys & (0x30 ^ mappedKey);
814 m_inactiveKeys &= ~0x30;
815 }
816 if (mappedKey & 0xC0) {
817 m_activeKeys |= m_inactiveKeys & (0xC0 ^ mappedKey);
818 m_inactiveKeys &= ~0xC0;
819 }
820 }
821 updateKeys();
822}
823
824void GameController::clearKeys() {
825 m_activeKeys = 0;
826 m_inactiveKeys = 0;
827 updateKeys();
828}
829
830void GameController::setAutofire(int key, bool enable) {
831 if (key >= GBA_KEY_MAX || key < 0) {
832 return;
833 }
834
835 if (!enable && m_autofireStatus[key]) {
836 keyReleased(key);
837 }
838
839 m_autofire[key] = enable;
840 m_autofireStatus[key] = 0;
841}
842
843void GameController::setAudioBufferSamples(int samples) {
844 if (m_audioProcessor) {
845 threadInterrupt();
846 redoSamples(samples);
847 threadContinue();
848 m_audioProcessor->setBufferSamples(samples);
849 }
850}
851
852void GameController::setAudioSampleRate(unsigned rate) {
853 if (!rate) {
854 return;
855 }
856 if (m_audioProcessor) {
857 threadInterrupt();
858 redoSamples(m_audioProcessor->getBufferSamples());
859 threadContinue();
860 m_audioProcessor->requestSampleRate(rate);
861 }
862}
863
864void GameController::setAudioChannelEnabled(int channel, bool enable) {
865 if (channel > 5 || channel < 0) {
866 return;
867 }
868 m_audioChannels.reserve(channel + 1);
869 while (m_audioChannels.size() <= channel) {
870 m_audioChannels.append(true);
871 }
872 m_audioChannels[channel] = enable;
873 if (isLoaded()) {
874 m_threadContext.core->enableAudioChannel(m_threadContext.core, channel, enable);
875 }
876}
877
878void GameController::startAudio() {
879 if (!m_audioProcessor->start()) {
880 LOG(QT, ERROR) << tr("Failed to start audio processor");
881 // Don't freeze!
882 m_audioSync = false;
883 m_videoSync = true;
884 m_threadContext.sync.audioWait = false;
885 m_threadContext.sync.videoFrameWait = true;
886 }
887}
888
889void GameController::setVideoLayerEnabled(int layer, bool enable) {
890 if (layer > 4 || layer < 0) {
891 return;
892 }
893 m_videoLayers.reserve(layer + 1);
894 while (m_videoLayers.size() <= layer) {
895 m_videoLayers.append(true);
896 }
897 m_videoLayers[layer] = enable;
898 if (isLoaded()) {
899 m_threadContext.core->enableVideoLayer(m_threadContext.core, layer, enable);
900 }
901}
902
903void GameController::setFPSTarget(float fps) {
904 Interrupter interrupter(this);
905 m_fpsTarget = fps;
906 m_threadContext.sync.fpsTarget = fps;
907 if (m_turbo && m_turboSpeed > 0) {
908 m_threadContext.sync.fpsTarget *= m_turboSpeed;
909 }
910 if (m_audioProcessor) {
911 redoSamples(m_audioProcessor->getBufferSamples());
912 }
913}
914
915void GameController::setUseBIOS(bool use) {
916 if (use == m_useBios) {
917 return;
918 }
919 m_useBios = use;
920 if (m_gameOpen) {
921 closeGame();
922 openGame();
923 }
924}
925
926void GameController::loadState(int slot) {
927 if (m_fname.isEmpty()) {
928 // We're in the BIOS
929 return;
930 }
931 if (slot > 0 && slot != m_stateSlot) {
932 m_stateSlot = slot;
933 m_backupSaveState.clear();
934 }
935 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
936 GameController* controller = static_cast<GameController*>(context->userData);
937 if (!controller->m_backupLoadState) {
938 controller->m_backupLoadState = VFileMemChunk(nullptr, 0);
939 }
940 mCoreLoadStateNamed(context->core, controller->m_backupLoadState, controller->m_saveStateFlags);
941 if (mCoreLoadState(context->core, controller->m_stateSlot, controller->m_loadStateFlags)) {
942 emit controller->frameAvailable(controller->m_drawContext);
943 emit controller->stateLoaded(context);
944 }
945 });
946}
947
948void GameController::saveState(int slot) {
949 if (m_fname.isEmpty()) {
950 // We're in the BIOS
951 return;
952 }
953 if (slot > 0) {
954 m_stateSlot = slot;
955 }
956 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
957 GameController* controller = static_cast<GameController*>(context->userData);
958 VFile* vf = mCoreGetState(context->core, controller->m_stateSlot, false);
959 if (vf) {
960 controller->m_backupSaveState.resize(vf->size(vf));
961 vf->read(vf, controller->m_backupSaveState.data(), controller->m_backupSaveState.size());
962 vf->close(vf);
963 }
964 mCoreSaveState(context->core, controller->m_stateSlot, controller->m_saveStateFlags);
965 });
966}
967
968void GameController::loadBackupState() {
969 if (!m_backupLoadState) {
970 return;
971 }
972
973 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
974 GameController* controller = static_cast<GameController*>(context->userData);
975 controller->m_backupLoadState->seek(controller->m_backupLoadState, 0, SEEK_SET);
976 if (mCoreLoadStateNamed(context->core, controller->m_backupLoadState, controller->m_loadStateFlags)) {
977 mLOG(STATUS, INFO, "Undid state load");
978 controller->frameAvailable(controller->m_drawContext);
979 controller->stateLoaded(context);
980 }
981 controller->m_backupLoadState->close(controller->m_backupLoadState);
982 controller->m_backupLoadState = nullptr;
983 });
984}
985
986void GameController::saveBackupState() {
987 if (m_backupSaveState.isEmpty()) {
988 return;
989 }
990
991 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
992 GameController* controller = static_cast<GameController*>(context->userData);
993 VFile* vf = mCoreGetState(context->core, controller->m_stateSlot, true);
994 if (vf) {
995 vf->write(vf, controller->m_backupSaveState.constData(), controller->m_backupSaveState.size());
996 vf->close(vf);
997 mLOG(STATUS, INFO, "Undid state save");
998 }
999 controller->m_backupSaveState.clear();
1000 });
1001}
1002
1003void GameController::setTurbo(bool set, bool forced) {
1004 if (m_turboForced && !forced) {
1005 return;
1006 }
1007 if (m_turbo == set && m_turboForced == (set && forced)) {
1008 // Don't interrupt the thread if we don't need to
1009 return;
1010 }
1011 if (!m_sync) {
1012 return;
1013 }
1014 m_turbo = set;
1015 m_turboForced = set && forced;
1016 enableTurbo();
1017}
1018
1019void GameController::setTurboSpeed(float ratio) {
1020 m_turboSpeed = ratio;
1021 enableTurbo();
1022}
1023
1024void GameController::enableTurbo() {
1025 Interrupter interrupter(this);
1026 bool shouldRedoSamples = false;
1027 if (!m_turbo) {
1028 shouldRedoSamples = m_threadContext.sync.fpsTarget != m_fpsTarget;
1029 m_threadContext.sync.fpsTarget = m_fpsTarget;
1030 m_threadContext.sync.audioWait = m_audioSync;
1031 m_threadContext.sync.videoFrameWait = m_videoSync;
1032 } else if (m_turboSpeed <= 0) {
1033 shouldRedoSamples = m_threadContext.sync.fpsTarget != m_fpsTarget;
1034 m_threadContext.sync.fpsTarget = m_fpsTarget;
1035 m_threadContext.sync.audioWait = false;
1036 m_threadContext.sync.videoFrameWait = false;
1037 } else {
1038 shouldRedoSamples = m_threadContext.sync.fpsTarget != m_fpsTarget * m_turboSpeed;
1039 m_threadContext.sync.fpsTarget = m_fpsTarget * m_turboSpeed;
1040 m_threadContext.sync.audioWait = true;
1041 m_threadContext.sync.videoFrameWait = false;
1042 }
1043 if (m_audioProcessor && shouldRedoSamples) {
1044 redoSamples(m_audioProcessor->getBufferSamples());
1045 }
1046}
1047
1048void GameController::setSync(bool enable) {
1049 m_turbo = false;
1050 m_turboForced = false;
1051 if (!enable) {
1052 m_threadContext.sync.audioWait = false;
1053 m_threadContext.sync.videoFrameWait = false;
1054 } else {
1055 m_threadContext.sync.audioWait = m_audioSync;
1056 m_threadContext.sync.videoFrameWait = m_videoSync;
1057 }
1058 m_sync = enable;
1059}
1060
1061void GameController::setAudioSync(bool enable) {
1062 m_audioSync = enable;
1063 m_threadContext.sync.audioWait = enable;
1064}
1065
1066void GameController::setVideoSync(bool enable) {
1067 m_videoSync = enable;
1068 m_threadContext.sync.videoFrameWait = enable;
1069}
1070
1071void GameController::setAVStream(mAVStream* stream) {
1072 Interrupter interrupter(this);
1073 m_stream = stream;
1074 if (isLoaded()) {
1075 m_threadContext.core->setAVStream(m_threadContext.core, stream);
1076 }
1077}
1078
1079void GameController::clearAVStream() {
1080 Interrupter interrupter(this);
1081 m_stream = nullptr;
1082 if (isLoaded()) {
1083 m_threadContext.core->setAVStream(m_threadContext.core, nullptr);
1084 }
1085}
1086
1087#ifdef USE_PNG
1088void GameController::screenshot() {
1089 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
1090 mCoreTakeScreenshot(context->core);
1091 });
1092}
1093#endif
1094
1095void GameController::reloadAudioDriver() {
1096 int samples = 0;
1097 unsigned sampleRate = 0;
1098 if (m_audioProcessor) {
1099 m_audioProcessor->pause();
1100 samples = m_audioProcessor->getBufferSamples();
1101 sampleRate = m_audioProcessor->sampleRate();
1102 delete m_audioProcessor;
1103 }
1104 m_audioProcessor = AudioProcessor::create();
1105 if (samples) {
1106 m_audioProcessor->setBufferSamples(samples);
1107 }
1108 if (sampleRate) {
1109 m_audioProcessor->requestSampleRate(sampleRate);
1110 }
1111 connect(this, &GameController::gamePaused, m_audioProcessor, &AudioProcessor::pause);
1112 connect(this, &GameController::gameStarted, m_audioProcessor, &AudioProcessor::setInput);
1113 if (isLoaded()) {
1114 m_audioProcessor->setInput(&m_threadContext);
1115 startAudio();
1116 }
1117}
1118
1119void GameController::setSaveStateExtdata(int flags) {
1120 m_saveStateFlags = flags;
1121}
1122
1123void GameController::setLoadStateExtdata(int flags) {
1124 m_loadStateFlags = flags;
1125}
1126
1127void GameController::setPreload(bool preload) {
1128 m_preload = preload;
1129}
1130
1131void GameController::setLuminanceValue(uint8_t value) {
1132 m_luxValue = value;
1133 value = std::max<int>(value - 0x16, 0);
1134 m_luxLevel = 10;
1135 for (int i = 0; i < 10; ++i) {
1136 if (value < GBA_LUX_LEVELS[i]) {
1137 m_luxLevel = i;
1138 break;
1139 }
1140 }
1141 emit luminanceValueChanged(m_luxValue);
1142}
1143
1144void GameController::setLuminanceLevel(int level) {
1145 int value = 0x16;
1146 level = std::max(0, std::min(10, level));
1147 if (level > 0) {
1148 value += GBA_LUX_LEVELS[level - 1];
1149 }
1150 setLuminanceValue(value);
1151}
1152
1153void GameController::setRealTime() {
1154 if (!isLoaded()) {
1155 return;
1156 }
1157 m_threadContext.core->rtc.override = RTC_NO_OVERRIDE;
1158}
1159
1160void GameController::setFixedTime(const QDateTime& time) {
1161 if (!isLoaded()) {
1162 return;
1163 }
1164 m_threadContext.core->rtc.override = RTC_FIXED;
1165 m_threadContext.core->rtc.value = time.toMSecsSinceEpoch();
1166}
1167
1168void GameController::setFakeEpoch(const QDateTime& time) {
1169 if (!isLoaded()) {
1170 return;
1171 }
1172 m_threadContext.core->rtc.override = RTC_FAKE_EPOCH;
1173 m_threadContext.core->rtc.value = time.toMSecsSinceEpoch();
1174}
1175
1176void GameController::updateKeys() {
1177 int activeKeys = m_activeKeys;
1178 activeKeys |= m_activeButtons;
1179 activeKeys &= ~m_inactiveKeys;
1180 if (isLoaded()) {
1181 m_threadContext.core->setKeys(m_threadContext.core, activeKeys);
1182 }
1183}
1184
1185void GameController::redoSamples(int samples) {
1186 if (m_gameOpen && m_threadContext.core) {
1187 m_threadContext.core->setAudioBufferSize(m_threadContext.core, samples);
1188 }
1189 m_audioProcessor->inputParametersChanged();
1190}
1191
1192void GameController::setLogLevel(int levels) {
1193 Interrupter interrupter(this);
1194 m_logLevels = levels;
1195}
1196
1197void GameController::enableLogLevel(int levels) {
1198 Interrupter interrupter(this);
1199 m_logLevels |= levels;
1200}
1201
1202void GameController::disableLogLevel(int levels) {
1203 Interrupter interrupter(this);
1204 m_logLevels &= ~levels;
1205}
1206
1207void GameController::startVideoLog(const QString& path) {
1208 if (!isLoaded() || m_vl) {
1209 return;
1210 }
1211
1212 Interrupter interrupter(this);
1213 m_vl = mVideoLogContextCreate(m_threadContext.core);
1214 m_vlVf = VFileDevice::open(path, O_WRONLY | O_CREAT | O_TRUNC);
1215 mVideoLogContextSetOutput(m_vl, m_vlVf);
1216 mVideoLogContextWriteHeader(m_vl, m_threadContext.core);
1217}
1218
1219void GameController::endVideoLog() {
1220 if (!m_vl) {
1221 return;
1222 }
1223
1224 Interrupter interrupter(this);
1225 mVideoLogContextDestroy(m_threadContext.core, m_vl);
1226 if (m_vlVf) {
1227 m_vlVf->close(m_vlVf);
1228 m_vlVf = nullptr;
1229 }
1230 m_vl = nullptr;
1231}
1232
1233void GameController::pollEvents() {
1234 if (!m_inputController) {
1235 return;
1236 }
1237
1238 m_activeButtons = m_inputController->pollEvents();
1239 updateKeys();
1240}
1241
1242void GameController::updateAutofire() {
1243 // TODO: Move all key events onto the CPU thread...somehow
1244 for (int k = 0; k < GBA_KEY_MAX; ++k) {
1245 if (!m_autofire[k]) {
1246 continue;
1247 }
1248 m_autofireStatus[k] ^= 1;
1249 if (m_autofireStatus[k]) {
1250 keyPressed(k);
1251 } else {
1252 keyReleased(k);
1253 }
1254 }
1255}
1256
1257std::shared_ptr<mTileCache> GameController::tileCache() {
1258 if (m_tileCache) {
1259 return m_tileCache;
1260 }
1261 Interrupter interrupter(this);
1262 switch (platform()) {
1263#ifdef M_CORE_GBA
1264 case PLATFORM_GBA: {
1265 GBA* gba = static_cast<GBA*>(m_threadContext.core->board);
1266 m_tileCache = std::make_shared<mTileCache>();
1267 GBAVideoTileCacheInit(m_tileCache.get());
1268 GBAVideoTileCacheAssociate(m_tileCache.get(), &gba->video);
1269 mTileCacheSetPalette(m_tileCache.get(), 0);
1270 break;
1271 }
1272#endif
1273#ifdef M_CORE_GB
1274 case PLATFORM_GB: {
1275 GB* gb = static_cast<GB*>(m_threadContext.core->board);
1276 m_tileCache = std::make_shared<mTileCache>();
1277 GBVideoTileCacheInit(m_tileCache.get());
1278 GBVideoTileCacheAssociate(m_tileCache.get(), &gb->video);
1279 mTileCacheSetPalette(m_tileCache.get(), 0);
1280 break;
1281 }
1282#endif
1283 default:
1284 return nullptr;
1285 }
1286 return m_tileCache;
1287}
1288
1289GameController::Interrupter::Interrupter(GameController* parent, bool fromThread)
1290 : m_parent(parent)
1291 , m_fromThread(fromThread)
1292{
1293 if (!m_fromThread) {
1294 m_parent->threadInterrupt();
1295 } else {
1296 mCoreThreadInterruptFromThread(m_parent->thread());
1297 }
1298}
1299
1300GameController::Interrupter::~Interrupter() {
1301 if (!m_fromThread) {
1302 m_parent->threadContinue();
1303 } else {
1304 mCoreThreadContinue(m_parent->thread());
1305 }
1306}