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 "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, SIGNAL(gamePaused(mCoreThread*)), m_audioProcessor, SLOT(pause()));
281 connect(this, SIGNAL(gameStarted(mCoreThread*, const QString&)), m_audioProcessor, SLOT(setInput(mCoreThread*)));
282 connect(this, SIGNAL(frameAvailable(const uint32_t*)), this, SLOT(pollEvents()));
283 connect(this, SIGNAL(frameAvailable(const uint32_t*)), this, SLOT(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 m_threadContext.core->deinit(m_threadContext.core);
655 m_threadContext.core = nullptr;
656 m_gameOpen = false;
657}
658
659void GameController::crashGame(const QString& crashMessage) {
660 closeGame();
661 emit gameCrashed(crashMessage);
662}
663
664bool GameController::isPaused() {
665 if (!m_gameOpen) {
666 return false;
667 }
668 return mCoreThreadIsPaused(&m_threadContext);
669}
670
671mPlatform GameController::platform() const {
672 if (!m_gameOpen) {
673 return PLATFORM_NONE;
674 }
675 return m_threadContext.core->platform(m_threadContext.core);
676}
677
678QSize GameController::screenDimensions() const {
679 if (!m_gameOpen) {
680 return QSize();
681 }
682 unsigned width, height;
683 m_threadContext.core->desiredVideoDimensions(m_threadContext.core, &width, &height);
684
685 return QSize(width, height);
686}
687
688void GameController::setPaused(bool paused) {
689 if (!isLoaded() || paused == mCoreThreadIsPaused(&m_threadContext)) {
690 return;
691 }
692 m_wasPaused = paused;
693 if (paused) {
694 m_pauseAfterFrame.testAndSetRelaxed(false, true);
695 } else {
696 mCoreThreadUnpause(&m_threadContext);
697 startAudio();
698 emit gameUnpaused(&m_threadContext);
699 }
700}
701
702void GameController::reset() {
703 if (!m_gameOpen) {
704 return;
705 }
706 bool wasPaused = isPaused();
707 setPaused(false);
708 Interrupter interrupter(this);
709 mCoreThreadReset(&m_threadContext);
710 if (wasPaused) {
711 setPaused(true);
712 }
713}
714
715void GameController::threadInterrupt() {
716 if (m_gameOpen) {
717 mCoreThreadInterrupt(&m_threadContext);
718 }
719}
720
721void GameController::threadContinue() {
722 if (m_gameOpen) {
723 mCoreThreadContinue(&m_threadContext);
724 }
725}
726
727void GameController::frameAdvance() {
728 if (m_pauseAfterFrame.testAndSetRelaxed(false, true)) {
729 setPaused(false);
730 }
731}
732
733void GameController::setRewind(bool enable, int capacity, bool rewindSave) {
734 if (m_gameOpen) {
735 Interrupter interrupter(this);
736 if (m_threadContext.core->opts.rewindEnable && m_threadContext.core->opts.rewindBufferCapacity > 0) {
737 mCoreRewindContextDeinit(&m_threadContext.rewind);
738 }
739 m_threadContext.core->opts.rewindEnable = enable;
740 m_threadContext.core->opts.rewindBufferCapacity = capacity;
741 m_threadContext.core->opts.rewindSave = rewindSave;
742 if (enable && capacity > 0) {
743 mCoreRewindContextInit(&m_threadContext.rewind, capacity);
744 m_threadContext.rewind.stateFlags = rewindSave ? SAVESTATE_SAVEDATA : 0;
745 }
746 }
747}
748
749void GameController::rewind(int states) {
750 threadInterrupt();
751 if (!states) {
752 states = INT_MAX;
753 }
754 for (int i = 0; i < states; ++i) {
755 if (!mCoreRewindRestore(&m_threadContext.rewind, m_threadContext.core)) {
756 break;
757 }
758 }
759 threadContinue();
760 emit frameAvailable(m_drawContext);
761 emit rewound(&m_threadContext);
762}
763
764void GameController::startRewinding() {
765 if (!isLoaded()) {
766 return;
767 }
768 if (!m_threadContext.core->opts.rewindEnable) {
769 return;
770 }
771 if (m_multiplayer && m_multiplayer->attached() > 1) {
772 return;
773 }
774 if (m_wasPaused) {
775 setPaused(false);
776 m_wasPaused = true;
777 }
778 mCoreThreadSetRewinding(&m_threadContext, true);
779}
780
781void GameController::stopRewinding() {
782 if (!isLoaded()) {
783 return;
784 }
785 mCoreThreadSetRewinding(&m_threadContext, false);
786 bool signalsBlocked = blockSignals(true);
787 setPaused(m_wasPaused);
788 blockSignals(signalsBlocked);
789}
790
791void GameController::keyPressed(int key) {
792 int mappedKey = 1 << key;
793 m_activeKeys |= mappedKey;
794 if (!m_inputController->allowOpposing()) {
795 if ((m_activeKeys & 0x30) == 0x30) {
796 m_inactiveKeys |= mappedKey ^ 0x30;
797 m_activeKeys ^= mappedKey ^ 0x30;
798 }
799 if ((m_activeKeys & 0xC0) == 0xC0) {
800 m_inactiveKeys |= mappedKey ^ 0xC0;
801 m_activeKeys ^= mappedKey ^ 0xC0;
802 }
803 }
804 updateKeys();
805}
806
807void GameController::keyReleased(int key) {
808 int mappedKey = 1 << key;
809 m_activeKeys &= ~mappedKey;
810 if (!m_inputController->allowOpposing()) {
811 if (mappedKey & 0x30) {
812 m_activeKeys |= m_inactiveKeys & (0x30 ^ mappedKey);
813 m_inactiveKeys &= ~0x30;
814 }
815 if (mappedKey & 0xC0) {
816 m_activeKeys |= m_inactiveKeys & (0xC0 ^ mappedKey);
817 m_inactiveKeys &= ~0xC0;
818 }
819 }
820 updateKeys();
821}
822
823void GameController::clearKeys() {
824 m_activeKeys = 0;
825 m_inactiveKeys = 0;
826 updateKeys();
827}
828
829void GameController::setAutofire(int key, bool enable) {
830 if (key >= GBA_KEY_MAX || key < 0) {
831 return;
832 }
833
834 if (!enable && m_autofireStatus[key]) {
835 keyReleased(key);
836 }
837
838 m_autofire[key] = enable;
839 m_autofireStatus[key] = 0;
840}
841
842void GameController::setAudioBufferSamples(int samples) {
843 if (m_audioProcessor) {
844 threadInterrupt();
845 redoSamples(samples);
846 threadContinue();
847 m_audioProcessor->setBufferSamples(samples);
848 }
849}
850
851void GameController::setAudioSampleRate(unsigned rate) {
852 if (!rate) {
853 return;
854 }
855 if (m_audioProcessor) {
856 threadInterrupt();
857 redoSamples(m_audioProcessor->getBufferSamples());
858 threadContinue();
859 m_audioProcessor->requestSampleRate(rate);
860 }
861}
862
863void GameController::setAudioChannelEnabled(int channel, bool enable) {
864 if (channel > 5 || channel < 0) {
865 return;
866 }
867 m_audioChannels.reserve(channel + 1);
868 while (m_audioChannels.size() <= channel) {
869 m_audioChannels.append(true);
870 }
871 m_audioChannels[channel] = enable;
872 if (isLoaded()) {
873 m_threadContext.core->enableAudioChannel(m_threadContext.core, channel, enable);
874 }
875}
876
877void GameController::startAudio() {
878 if (!m_audioProcessor->start()) {
879 LOG(QT, ERROR) << tr("Failed to start audio processor");
880 // Don't freeze!
881 m_audioSync = false;
882 m_videoSync = true;
883 m_threadContext.sync.audioWait = false;
884 m_threadContext.sync.videoFrameWait = true;
885 }
886}
887
888void GameController::setVideoLayerEnabled(int layer, bool enable) {
889 if (layer > 4 || layer < 0) {
890 return;
891 }
892 m_videoLayers.reserve(layer + 1);
893 while (m_videoLayers.size() <= layer) {
894 m_videoLayers.append(true);
895 }
896 m_videoLayers[layer] = enable;
897 if (isLoaded()) {
898 m_threadContext.core->enableVideoLayer(m_threadContext.core, layer, enable);
899 }
900}
901
902void GameController::setFPSTarget(float fps) {
903 Interrupter interrupter(this);
904 m_fpsTarget = fps;
905 m_threadContext.sync.fpsTarget = fps;
906 if (m_turbo && m_turboSpeed > 0) {
907 m_threadContext.sync.fpsTarget *= m_turboSpeed;
908 }
909 if (m_audioProcessor) {
910 redoSamples(m_audioProcessor->getBufferSamples());
911 }
912}
913
914void GameController::setUseBIOS(bool use) {
915 if (use == m_useBios) {
916 return;
917 }
918 m_useBios = use;
919 if (m_gameOpen) {
920 closeGame();
921 openGame();
922 }
923}
924
925void GameController::loadState(int slot) {
926 if (m_fname.isEmpty()) {
927 // We're in the BIOS
928 return;
929 }
930 if (slot > 0 && slot != m_stateSlot) {
931 m_stateSlot = slot;
932 m_backupSaveState.clear();
933 }
934 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
935 GameController* controller = static_cast<GameController*>(context->userData);
936 if (!controller->m_backupLoadState) {
937 controller->m_backupLoadState = VFileMemChunk(nullptr, 0);
938 }
939 mCoreLoadStateNamed(context->core, controller->m_backupLoadState, controller->m_saveStateFlags);
940 if (mCoreLoadState(context->core, controller->m_stateSlot, controller->m_loadStateFlags)) {
941 controller->frameAvailable(controller->m_drawContext);
942 controller->stateLoaded(context);
943 }
944 });
945}
946
947void GameController::saveState(int slot) {
948 if (m_fname.isEmpty()) {
949 // We're in the BIOS
950 return;
951 }
952 if (slot > 0) {
953 m_stateSlot = slot;
954 }
955 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
956 GameController* controller = static_cast<GameController*>(context->userData);
957 VFile* vf = mCoreGetState(context->core, controller->m_stateSlot, false);
958 if (vf) {
959 controller->m_backupSaveState.resize(vf->size(vf));
960 vf->read(vf, controller->m_backupSaveState.data(), controller->m_backupSaveState.size());
961 vf->close(vf);
962 }
963 mCoreSaveState(context->core, controller->m_stateSlot, controller->m_saveStateFlags);
964 });
965}
966
967void GameController::loadBackupState() {
968 if (!m_backupLoadState) {
969 return;
970 }
971
972 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
973 GameController* controller = static_cast<GameController*>(context->userData);
974 controller->m_backupLoadState->seek(controller->m_backupLoadState, 0, SEEK_SET);
975 if (mCoreLoadStateNamed(context->core, controller->m_backupLoadState, controller->m_loadStateFlags)) {
976 mLOG(STATUS, INFO, "Undid state load");
977 controller->frameAvailable(controller->m_drawContext);
978 controller->stateLoaded(context);
979 }
980 controller->m_backupLoadState->close(controller->m_backupLoadState);
981 controller->m_backupLoadState = nullptr;
982 });
983}
984
985void GameController::saveBackupState() {
986 if (m_backupSaveState.isEmpty()) {
987 return;
988 }
989
990 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
991 GameController* controller = static_cast<GameController*>(context->userData);
992 VFile* vf = mCoreGetState(context->core, controller->m_stateSlot, true);
993 if (vf) {
994 vf->write(vf, controller->m_backupSaveState.constData(), controller->m_backupSaveState.size());
995 vf->close(vf);
996 mLOG(STATUS, INFO, "Undid state save");
997 }
998 controller->m_backupSaveState.clear();
999 });
1000}
1001
1002void GameController::setTurbo(bool set, bool forced) {
1003 if (m_turboForced && !forced) {
1004 return;
1005 }
1006 if (m_turbo == set && m_turboForced == (set && forced)) {
1007 // Don't interrupt the thread if we don't need to
1008 return;
1009 }
1010 if (!m_sync) {
1011 return;
1012 }
1013 m_turbo = set;
1014 m_turboForced = set && forced;
1015 enableTurbo();
1016}
1017
1018void GameController::setTurboSpeed(float ratio) {
1019 m_turboSpeed = ratio;
1020 enableTurbo();
1021}
1022
1023void GameController::enableTurbo() {
1024 Interrupter interrupter(this);
1025 bool shouldRedoSamples = false;
1026 if (!m_turbo) {
1027 shouldRedoSamples = m_threadContext.sync.fpsTarget != m_fpsTarget;
1028 m_threadContext.sync.fpsTarget = m_fpsTarget;
1029 m_threadContext.sync.audioWait = m_audioSync;
1030 m_threadContext.sync.videoFrameWait = m_videoSync;
1031 } else if (m_turboSpeed <= 0) {
1032 shouldRedoSamples = m_threadContext.sync.fpsTarget != m_fpsTarget;
1033 m_threadContext.sync.fpsTarget = m_fpsTarget;
1034 m_threadContext.sync.audioWait = false;
1035 m_threadContext.sync.videoFrameWait = false;
1036 } else {
1037 shouldRedoSamples = m_threadContext.sync.fpsTarget != m_fpsTarget * m_turboSpeed;
1038 m_threadContext.sync.fpsTarget = m_fpsTarget * m_turboSpeed;
1039 m_threadContext.sync.audioWait = true;
1040 m_threadContext.sync.videoFrameWait = false;
1041 }
1042 if (m_audioProcessor && shouldRedoSamples) {
1043 redoSamples(m_audioProcessor->getBufferSamples());
1044 }
1045}
1046
1047void GameController::setSync(bool enable) {
1048 m_turbo = false;
1049 m_turboForced = false;
1050 if (!enable) {
1051 m_threadContext.sync.audioWait = false;
1052 m_threadContext.sync.videoFrameWait = false;
1053 } else {
1054 m_threadContext.sync.audioWait = m_audioSync;
1055 m_threadContext.sync.videoFrameWait = m_videoSync;
1056 }
1057 m_sync = enable;
1058}
1059
1060void GameController::setAudioSync(bool enable) {
1061 m_audioSync = enable;
1062 m_threadContext.sync.audioWait = enable;
1063}
1064
1065void GameController::setVideoSync(bool enable) {
1066 m_videoSync = enable;
1067 m_threadContext.sync.videoFrameWait = enable;
1068}
1069
1070void GameController::setAVStream(mAVStream* stream) {
1071 Interrupter interrupter(this);
1072 m_stream = stream;
1073 if (isLoaded()) {
1074 m_threadContext.core->setAVStream(m_threadContext.core, stream);
1075 }
1076}
1077
1078void GameController::clearAVStream() {
1079 Interrupter interrupter(this);
1080 m_stream = nullptr;
1081 if (isLoaded()) {
1082 m_threadContext.core->setAVStream(m_threadContext.core, nullptr);
1083 }
1084}
1085
1086#ifdef USE_PNG
1087void GameController::screenshot() {
1088 mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
1089 mCoreTakeScreenshot(context->core);
1090 });
1091}
1092#endif
1093
1094void GameController::reloadAudioDriver() {
1095 int samples = 0;
1096 unsigned sampleRate = 0;
1097 if (m_audioProcessor) {
1098 m_audioProcessor->pause();
1099 samples = m_audioProcessor->getBufferSamples();
1100 sampleRate = m_audioProcessor->sampleRate();
1101 delete m_audioProcessor;
1102 }
1103 m_audioProcessor = AudioProcessor::create();
1104 if (samples) {
1105 m_audioProcessor->setBufferSamples(samples);
1106 }
1107 if (sampleRate) {
1108 m_audioProcessor->requestSampleRate(sampleRate);
1109 }
1110 connect(this, SIGNAL(gamePaused(mCoreThread*)), m_audioProcessor, SLOT(pause()));
1111 connect(this, SIGNAL(gameStarted(mCoreThread*, const QString&)), m_audioProcessor, SLOT(setInput(mCoreThread*)));
1112 if (isLoaded()) {
1113 m_audioProcessor->setInput(&m_threadContext);
1114 startAudio();
1115 }
1116}
1117
1118void GameController::setSaveStateExtdata(int flags) {
1119 m_saveStateFlags = flags;
1120}
1121
1122void GameController::setLoadStateExtdata(int flags) {
1123 m_loadStateFlags = flags;
1124}
1125
1126void GameController::setPreload(bool preload) {
1127 m_preload = preload;
1128}
1129
1130void GameController::setLuminanceValue(uint8_t value) {
1131 m_luxValue = value;
1132 value = std::max<int>(value - 0x16, 0);
1133 m_luxLevel = 10;
1134 for (int i = 0; i < 10; ++i) {
1135 if (value < GBA_LUX_LEVELS[i]) {
1136 m_luxLevel = i;
1137 break;
1138 }
1139 }
1140 emit luminanceValueChanged(m_luxValue);
1141}
1142
1143void GameController::setLuminanceLevel(int level) {
1144 int value = 0x16;
1145 level = std::max(0, std::min(10, level));
1146 if (level > 0) {
1147 value += GBA_LUX_LEVELS[level - 1];
1148 }
1149 setLuminanceValue(value);
1150}
1151
1152void GameController::setRealTime() {
1153 if (!isLoaded()) {
1154 return;
1155 }
1156 m_threadContext.core->rtc.override = RTC_NO_OVERRIDE;
1157}
1158
1159void GameController::setFixedTime(const QDateTime& time) {
1160 if (!isLoaded()) {
1161 return;
1162 }
1163 m_threadContext.core->rtc.override = RTC_FIXED;
1164 m_threadContext.core->rtc.value = time.toMSecsSinceEpoch();
1165}
1166
1167void GameController::setFakeEpoch(const QDateTime& time) {
1168 if (!isLoaded()) {
1169 return;
1170 }
1171 m_threadContext.core->rtc.override = RTC_FAKE_EPOCH;
1172 m_threadContext.core->rtc.value = time.toMSecsSinceEpoch();
1173}
1174
1175void GameController::updateKeys() {
1176 int activeKeys = m_activeKeys;
1177 activeKeys |= m_activeButtons;
1178 activeKeys &= ~m_inactiveKeys;
1179 if (isLoaded()) {
1180 m_threadContext.core->setKeys(m_threadContext.core, activeKeys);
1181 }
1182}
1183
1184void GameController::redoSamples(int samples) {
1185 if (m_gameOpen && m_threadContext.core) {
1186 m_threadContext.core->setAudioBufferSize(m_threadContext.core, samples);
1187 }
1188 m_audioProcessor->inputParametersChanged();
1189}
1190
1191void GameController::setLogLevel(int levels) {
1192 Interrupter interrupter(this);
1193 m_logLevels = levels;
1194}
1195
1196void GameController::enableLogLevel(int levels) {
1197 Interrupter interrupter(this);
1198 m_logLevels |= levels;
1199}
1200
1201void GameController::disableLogLevel(int levels) {
1202 Interrupter interrupter(this);
1203 m_logLevels &= ~levels;
1204}
1205
1206void GameController::startVideoLog(const QString& path) {
1207 if (!isLoaded() || m_vl) {
1208 return;
1209 }
1210
1211 Interrupter interrupter(this);
1212 m_vl = mVideoLogContextCreate(m_threadContext.core);
1213 m_vlVf = VFileDevice::open(path, O_WRONLY | O_CREAT | O_TRUNC);
1214 mVideoLogContextSetOutput(m_vl, m_vlVf);
1215 mVideoLogContextWriteHeader(m_vl, m_threadContext.core);
1216}
1217
1218void GameController::endVideoLog() {
1219 if (!m_vl) {
1220 return;
1221 }
1222
1223 Interrupter interrupter(this);
1224 mVideoLogContextDestroy(m_threadContext.core, m_vl);
1225 if (m_vlVf) {
1226 m_vlVf->close(m_vlVf);
1227 m_vlVf = nullptr;
1228 }
1229 m_vl = nullptr;
1230}
1231
1232void GameController::pollEvents() {
1233 if (!m_inputController) {
1234 return;
1235 }
1236
1237 m_activeButtons = m_inputController->pollEvents();
1238 updateKeys();
1239}
1240
1241void GameController::updateAutofire() {
1242 // TODO: Move all key events onto the CPU thread...somehow
1243 for (int k = 0; k < GBA_KEY_MAX; ++k) {
1244 if (!m_autofire[k]) {
1245 continue;
1246 }
1247 m_autofireStatus[k] ^= 1;
1248 if (m_autofireStatus[k]) {
1249 keyPressed(k);
1250 } else {
1251 keyReleased(k);
1252 }
1253 }
1254}
1255
1256std::shared_ptr<mTileCache> GameController::tileCache() {
1257 if (m_tileCache) {
1258 return m_tileCache;
1259 }
1260 switch (platform()) {
1261#ifdef M_CORE_GBA
1262 case PLATFORM_GBA: {
1263 Interrupter interrupter(this);
1264 GBA* gba = static_cast<GBA*>(m_threadContext.core->board);
1265 m_tileCache = std::make_shared<mTileCache>();
1266 GBAVideoTileCacheInit(m_tileCache.get());
1267 GBAVideoTileCacheAssociate(m_tileCache.get(), &gba->video);
1268 mTileCacheSetPalette(m_tileCache.get(), 0);
1269 break;
1270 }
1271#endif
1272#ifdef M_CORE_GB
1273 case PLATFORM_GB: {
1274 Interrupter interrupter(this);
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}