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