1/* Copyright (c) 2013-2017 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 "CoreController.h"
  7
  8#include "ConfigController.h"
  9#include "InputController.h"
 10#include "LogController.h"
 11#include "MultiplayerController.h"
 12#include "Override.h"
 13
 14#include <QDateTime>
 15#include <QMutexLocker>
 16
 17#include <mgba/core/serialize.h>
 18#include <mgba/feature/video-logger.h>
 19#ifdef M_CORE_GBA
 20#include <mgba/internal/gba/gba.h>
 21#include <mgba/internal/gba/renderers/cache-set.h>
 22#include <mgba/internal/gba/sharkport.h>
 23#endif
 24#ifdef M_CORE_GB
 25#include <mgba/internal/gb/gb.h>
 26#include <mgba/internal/gb/renderers/cache-set.h>
 27#endif
 28#include <mgba-util/math.h>
 29#include <mgba-util/vfs.h>
 30
 31#define AUTOSAVE_GRANULARITY 600
 32
 33using namespace QGBA;
 34
 35CoreController::CoreController(mCore* core, QObject* parent)
 36	: QObject(parent)
 37	, m_saveStateFlags(SAVESTATE_SCREENSHOT | SAVESTATE_SAVEDATA | SAVESTATE_CHEATS | SAVESTATE_RTC)
 38	, m_loadStateFlags(SAVESTATE_SCREENSHOT | SAVESTATE_RTC)
 39{
 40	m_threadContext.core = core;
 41	m_threadContext.userData = this;
 42
 43	m_resetActions.append([this]() {
 44		if (m_autoload) {
 45			mCoreLoadState(m_threadContext.core, 0, m_loadStateFlags);
 46		}
 47	});
 48
 49	m_threadContext.startCallback = [](mCoreThread* context) {
 50		CoreController* controller = static_cast<CoreController*>(context->userData);
 51
 52		switch (context->core->platform(context->core)) {
 53#ifdef M_CORE_GBA
 54		case PLATFORM_GBA:
 55			context->core->setPeripheral(context->core, mPERIPH_GBA_LUMINANCE, controller->m_inputController->luminance());
 56			break;
 57#endif
 58		default:
 59			break;
 60		}
 61
 62		controller->updateFastForward();
 63
 64		if (controller->m_multiplayer) {
 65			controller->m_multiplayer->attachGame(controller);
 66		}
 67
 68		QMetaObject::invokeMethod(controller, "started");
 69	};
 70
 71	m_threadContext.resetCallback = [](mCoreThread* context) {
 72		CoreController* controller = static_cast<CoreController*>(context->userData);
 73		for (auto action : controller->m_resetActions) {
 74			action();
 75		}
 76
 77		if (controller->m_override) {
 78			controller->m_override->identify(context->core);
 79			controller->m_override->apply(context->core);
 80		}
 81
 82		controller->m_resetActions.clear();
 83
 84		if (!controller->m_hwaccel) {
 85			controller->m_activeBuffer = &controller->m_buffers[0];
 86			context->core->setVideoBuffer(context->core, reinterpret_cast<color_t*>(controller->m_activeBuffer->data()), controller->screenDimensions().width());
 87		}
 88
 89		controller->finishFrame();
 90	};
 91
 92	m_threadContext.frameCallback = [](mCoreThread* context) {
 93		CoreController* controller = static_cast<CoreController*>(context->userData);
 94
 95		if (controller->m_autosaveCounter == AUTOSAVE_GRANULARITY) {
 96			if (controller->m_autosave) {
 97				mCoreSaveState(context->core, 0, controller->m_saveStateFlags);
 98			}
 99			controller->m_autosaveCounter = 0;
100		}
101		++controller->m_autosaveCounter;
102
103		controller->finishFrame();
104	};
105
106	m_threadContext.cleanCallback = [](mCoreThread* context) {
107		CoreController* controller = static_cast<CoreController*>(context->userData);
108
109		if (controller->m_autosave) {
110			mCoreSaveState(context->core, 0, controller->m_saveStateFlags);
111		}
112
113		controller->clearMultiplayerController();
114		QMetaObject::invokeMethod(controller, "stopping");
115	};
116
117	m_threadContext.pauseCallback = [](mCoreThread* context) {
118		CoreController* controller = static_cast<CoreController*>(context->userData);
119
120		QMetaObject::invokeMethod(controller, "paused");
121	};
122
123	m_threadContext.unpauseCallback = [](mCoreThread* context) {
124		CoreController* controller = static_cast<CoreController*>(context->userData);
125
126		QMetaObject::invokeMethod(controller, "unpaused");
127	};
128
129	m_threadContext.logger.d.log = [](mLogger* logger, int category, enum mLogLevel level, const char* format, va_list args) {
130		mThreadLogger* logContext = reinterpret_cast<mThreadLogger*>(logger);
131		mCoreThread* context = logContext->p;
132
133		static const char* savestateMessage = "State %i saved";
134		static const char* loadstateMessage = "State %i loaded";
135		static const char* savestateFailedMessage = "State %i failed to load";
136		static int biosCat = -1;
137		static int statusCat = -1;
138		if (!context) {
139			return;
140		}
141		CoreController* controller = static_cast<CoreController*>(context->userData);
142		QString message;
143		if (biosCat < 0) {
144			biosCat = mLogCategoryById("gba.bios");
145		}
146		if (statusCat < 0) {
147			statusCat = mLogCategoryById("core.status");
148		}
149#ifdef M_CORE_GBA
150		if (level == mLOG_STUB && category == biosCat) {
151			va_list argc;
152			va_copy(argc, args);
153			int immediate = va_arg(argc, int);
154			va_end(argc);
155			QMetaObject::invokeMethod(controller, "unimplementedBiosCall", Q_ARG(int, immediate));
156		} else
157#endif
158		if (category == statusCat) {
159			// Slot 0 is reserved for suspend points
160			if (strncmp(loadstateMessage, format, strlen(loadstateMessage)) == 0) {
161				va_list argc;
162				va_copy(argc, args);
163				int slot = va_arg(argc, int);
164				va_end(argc);
165				if (slot == 0) {
166					format = "Loaded suspend state";
167				}
168			} else if (strncmp(savestateFailedMessage, format, strlen(savestateFailedMessage)) == 0 || strncmp(savestateMessage, format, strlen(savestateMessage)) == 0) {
169				va_list argc;
170				va_copy(argc, args);
171				int slot = va_arg(argc, int);
172				va_end(argc);
173				if (slot == 0) {
174					return;
175				}
176			}
177			message = QString().vsprintf(format, args);
178			QMetaObject::invokeMethod(controller, "statusPosted", Q_ARG(const QString&, message));
179		}
180		message = QString().vsprintf(format, args);
181		QMetaObject::invokeMethod(controller, "logPosted", Q_ARG(int, level), Q_ARG(int, category), Q_ARG(const QString&, message));
182		if (level == mLOG_FATAL) {
183			QMetaObject::invokeMethod(controller, "crashed", Q_ARG(const QString&, QString().vsprintf(format, args)));
184		}
185	};
186}
187
188CoreController::~CoreController() {
189	endVideoLog();
190	stop();
191	disconnect();
192
193	mCoreThreadJoin(&m_threadContext);
194
195	if (m_cacheSet) {
196		mCacheSetDeinit(m_cacheSet.get());
197		m_cacheSet.reset();
198	}
199
200	mCoreConfigDeinit(&m_threadContext.core->config);
201	m_threadContext.core->deinit(m_threadContext.core);
202}
203
204const color_t* CoreController::drawContext() {
205	QMutexLocker locker(&m_mutex);
206	if (m_hwaccel) {
207		return nullptr;
208	}
209	return reinterpret_cast<const color_t*>(m_completeBuffer.constData());
210}
211
212bool CoreController::isPaused() {
213	return mCoreThreadIsPaused(&m_threadContext);
214}
215
216bool CoreController::hasStarted() {
217	return mCoreThreadHasStarted(&m_threadContext);
218}
219
220mPlatform CoreController::platform() const {
221	return m_threadContext.core->platform(m_threadContext.core);
222}
223
224QSize CoreController::screenDimensions() const {
225	unsigned width, height;
226	m_threadContext.core->desiredVideoDimensions(m_threadContext.core, &width, &height);
227
228	return QSize(width, height);
229}
230
231void CoreController::loadConfig(ConfigController* config) {
232	Interrupter interrupter(this);
233	m_loadStateFlags = config->getOption("loadStateExtdata", m_loadStateFlags).toInt();
234	m_saveStateFlags = config->getOption("saveStateExtdata", m_saveStateFlags).toInt();
235	m_fastForwardRatio = config->getOption("fastForwardRatio", m_fastForwardRatio).toFloat();
236	m_videoSync = config->getOption("videoSync", m_videoSync).toInt();
237	m_audioSync = config->getOption("audioSync", m_audioSync).toInt();
238	m_fpsTarget = config->getOption("fpsTarget").toFloat();
239	m_autosave = config->getOption("autosave", false).toInt();
240	m_autoload = config->getOption("autoload", true).toInt();
241	m_autofireThreshold = config->getOption("autofireThreshold", m_autofireThreshold).toInt();
242	m_fastForwardVolume = config->getOption("fastForwardVolume", -1).toInt();
243	m_fastForwardMute = config->getOption("fastForwardMute", -1).toInt();
244	mCoreConfigCopyValue(&m_threadContext.core->config, config->config(), "volume");
245	mCoreConfigCopyValue(&m_threadContext.core->config, config->config(), "mute");
246	mCoreLoadForeignConfig(m_threadContext.core, config->config());
247	if (hasStarted()) {
248		updateFastForward();
249		mCoreThreadRewindParamsChanged(&m_threadContext);
250	}
251}
252
253#ifdef USE_DEBUGGERS
254void CoreController::setDebugger(mDebugger* debugger) {
255	Interrupter interrupter(this);
256	if (debugger) {
257		mDebuggerAttach(debugger, m_threadContext.core);
258	} else {
259		m_threadContext.core->detachDebugger(m_threadContext.core);
260	}
261}
262#endif
263
264void CoreController::setMultiplayerController(MultiplayerController* controller) {
265	if (controller == m_multiplayer) {
266		return;
267	}
268	clearMultiplayerController();
269	m_multiplayer = controller;
270	if (!mCoreThreadHasStarted(&m_threadContext)) {
271		return;
272	}
273	mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* thread) {
274		CoreController* controller = static_cast<CoreController*>(thread->userData);
275		controller->m_multiplayer->attachGame(controller);
276	});
277}
278
279void CoreController::clearMultiplayerController() {
280	if (!m_multiplayer) {
281		return;
282	}
283	m_multiplayer->detachGame(this);
284	m_multiplayer = nullptr;
285}
286
287mCacheSet* CoreController::graphicCaches() {
288	if (m_cacheSet) {
289		return m_cacheSet.get();
290	}
291	Interrupter interrupter(this);
292	switch (platform()) {
293#ifdef M_CORE_GBA
294	case PLATFORM_GBA: {
295		GBA* gba = static_cast<GBA*>(m_threadContext.core->board);
296		m_cacheSet = std::make_unique<mCacheSet>();
297		GBAVideoCacheInit(m_cacheSet.get());
298		GBAVideoCacheAssociate(m_cacheSet.get(), &gba->video);
299		break;
300	}
301#endif
302#ifdef M_CORE_GB
303	case PLATFORM_GB: {
304		GB* gb = static_cast<GB*>(m_threadContext.core->board);
305		m_cacheSet = std::make_unique<mCacheSet>();
306		GBVideoCacheInit(m_cacheSet.get());
307		GBVideoCacheAssociate(m_cacheSet.get(), &gb->video);
308		break;
309	}
310#endif
311	default:
312		return nullptr;
313	}
314	return m_cacheSet.get();
315}
316
317void CoreController::setOverride(std::unique_ptr<Override> override) {
318	Interrupter interrupter(this);
319	m_override = std::move(override);
320	m_override->identify(m_threadContext.core);
321}
322
323void CoreController::setInputController(InputController* inputController) {
324	m_inputController = inputController;
325	m_threadContext.core->setPeripheral(m_threadContext.core, mPERIPH_ROTATION, m_inputController->rotationSource());
326	m_threadContext.core->setPeripheral(m_threadContext.core, mPERIPH_RUMBLE, m_inputController->rumble());
327	m_threadContext.core->setPeripheral(m_threadContext.core, mPERIPH_IMAGE_SOURCE, m_inputController->imageSource());
328}
329
330void CoreController::setLogger(LogController* logger) {
331	disconnect(m_log);
332	m_log = logger;
333	m_threadContext.logger.d.filter = logger->filter();
334	connect(this, &CoreController::logPosted, m_log, &LogController::postLog);
335}
336
337void CoreController::start() {
338	if (!m_hwaccel) {
339		QSize size(1024, 2048);
340		m_buffers[0].resize(size.width() * size.height() * sizeof(color_t));
341		m_buffers[1].resize(size.width() * size.height() * sizeof(color_t));
342		m_buffers[0].fill(0xFF);
343		m_buffers[1].fill(0xFF);
344		m_activeBuffer = &m_buffers[0];
345		m_completeBuffer = m_buffers[0];
346
347		m_threadContext.core->setVideoBuffer(m_threadContext.core, reinterpret_cast<color_t*>(m_activeBuffer->data()), size.width());
348	}
349
350	if (!m_patched) {
351		mCoreAutoloadPatch(m_threadContext.core);
352	}
353	if (!mCoreThreadStart(&m_threadContext)) {
354		emit failed();
355		emit stopping();
356	}
357}
358
359void CoreController::stop() {
360	setSync(false);
361#ifdef USE_DEBUGGERS
362	setDebugger(nullptr);
363#endif
364	setPaused(false);
365	mCoreThreadEnd(&m_threadContext);
366	emit stopping();
367}
368
369void CoreController::reset() {
370	bool wasPaused = isPaused();
371	setPaused(false);
372	Interrupter interrupter(this);
373	mCoreThreadReset(&m_threadContext);
374	if (wasPaused) {
375		setPaused(true);
376	}
377}
378
379void CoreController::setPaused(bool paused) {
380	if (paused == isPaused()) {
381		return;
382	}
383	if (paused) {
384		QMutexLocker locker(&m_mutex);
385		m_frameActions.append([this]() {
386			mCoreThreadPauseFromThread(&m_threadContext);
387		});
388	} else {
389		mCoreThreadUnpause(&m_threadContext);
390	}
391}
392
393void CoreController::frameAdvance() {
394	QMutexLocker locker(&m_mutex);
395	m_frameActions.append([this]() {
396		mCoreThreadPauseFromThread(&m_threadContext);
397	});
398	setPaused(false);
399}
400
401void CoreController::setSync(bool sync) {
402	if (sync) {
403		m_threadContext.impl->sync.audioWait = m_audioSync;
404		m_threadContext.impl->sync.videoFrameWait = m_videoSync;
405	} else {
406		m_threadContext.impl->sync.audioWait = false;
407		m_threadContext.impl->sync.videoFrameWait = false;
408	}
409}
410
411void CoreController::setRewinding(bool rewind) {
412	if (!m_threadContext.core->opts.rewindEnable) {
413		return;
414	}
415	if (rewind && m_multiplayer && m_multiplayer->attached() > 1) {
416		return;
417	}
418
419	if (rewind && isPaused()) {
420		setPaused(false);
421		// TODO: restore autopausing
422	}
423	mCoreThreadSetRewinding(&m_threadContext, rewind);
424}
425
426void CoreController::rewind(int states) {
427	{
428		Interrupter interrupter(this);
429		if (!states) {
430			states = INT_MAX;
431		}
432		for (int i = 0; i < states; ++i) {
433			if (!mCoreRewindRestore(&m_threadContext.impl->rewind, m_threadContext.core)) {
434				break;
435			}
436		}
437	}
438	emit frameAvailable();
439	emit rewound();
440}
441
442void CoreController::setFastForward(bool enable) {
443	m_fastForward = enable;
444	updateFastForward();
445}
446
447void CoreController::forceFastForward(bool enable) {
448	m_fastForwardForced = enable;
449	updateFastForward();
450}
451
452void CoreController::loadState(int slot) {
453	if (slot > 0 && slot != m_stateSlot) {
454		m_stateSlot = slot;
455		m_backupSaveState.clear();
456	}
457	mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
458		CoreController* controller = static_cast<CoreController*>(context->userData);
459		if (!controller->m_backupLoadState.isOpen()) {
460			controller->m_backupLoadState = VFileMemChunk(nullptr, 0);
461		}
462		mCoreSaveStateNamed(context->core, controller->m_backupLoadState, controller->m_saveStateFlags);
463		if (mCoreLoadState(context->core, controller->m_stateSlot, controller->m_loadStateFlags)) {
464			emit controller->frameAvailable();
465			emit controller->stateLoaded();
466		}
467	});
468}
469
470void CoreController::loadState(const QString& path) {
471	m_statePath = path;
472	mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
473		CoreController* controller = static_cast<CoreController*>(context->userData);
474		VFile* vf = VFileDevice::open(controller->m_statePath, O_RDONLY);
475		if (!vf) {
476			return;
477		}
478		if (!controller->m_backupLoadState.isOpen()) {
479			controller->m_backupLoadState = VFileMemChunk(nullptr, 0);
480		}
481		mCoreSaveStateNamed(context->core, controller->m_backupLoadState, controller->m_saveStateFlags);
482		if (mCoreLoadStateNamed(context->core, vf, controller->m_loadStateFlags)) {
483			emit controller->frameAvailable();
484			emit controller->stateLoaded();
485		}
486		vf->close(vf);
487	});
488}
489
490void CoreController::saveState(int slot) {
491	if (slot > 0) {
492		m_stateSlot = slot;
493	}
494	mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
495		CoreController* controller = static_cast<CoreController*>(context->userData);
496		VFile* vf = mCoreGetState(context->core, controller->m_stateSlot, false);
497		if (vf) {
498			controller->m_backupSaveState.resize(vf->size(vf));
499			vf->read(vf, controller->m_backupSaveState.data(), controller->m_backupSaveState.size());
500			vf->close(vf);
501		}
502		mCoreSaveState(context->core, controller->m_stateSlot, controller->m_saveStateFlags);
503	});
504}
505
506void CoreController::saveState(const QString& path) {
507	m_statePath = path;
508	mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
509		CoreController* controller = static_cast<CoreController*>(context->userData);
510		VFile* vf = VFileDevice::open(controller->m_statePath, O_RDONLY);
511		if (vf) {
512			controller->m_backupSaveState.resize(vf->size(vf));
513			vf->read(vf, controller->m_backupSaveState.data(), controller->m_backupSaveState.size());
514			vf->close(vf);
515		}
516		vf = VFileDevice::open(controller->m_statePath, O_WRONLY | O_CREAT | O_TRUNC);
517		if (!vf) {
518			return;
519		}
520		mCoreSaveStateNamed(context->core, vf, controller->m_saveStateFlags);
521		vf->close(vf);
522	});
523}
524
525void CoreController::loadBackupState() {
526	if (!m_backupLoadState.isOpen()) {
527		return;
528	}
529
530	mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
531		CoreController* controller = static_cast<CoreController*>(context->userData);
532		controller->m_backupLoadState.seek(0);
533		if (mCoreLoadStateNamed(context->core, controller->m_backupLoadState, controller->m_loadStateFlags)) {
534			mLOG(STATUS, INFO, "Undid state load");
535			controller->frameAvailable();
536			controller->stateLoaded();
537		}
538		controller->m_backupLoadState.close();
539	});
540}
541
542void CoreController::saveBackupState() {
543	if (m_backupSaveState.isEmpty()) {
544		return;
545	}
546
547	mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
548		CoreController* controller = static_cast<CoreController*>(context->userData);
549		VFile* vf = mCoreGetState(context->core, controller->m_stateSlot, true);
550		if (vf) {
551			vf->write(vf, controller->m_backupSaveState.constData(), controller->m_backupSaveState.size());
552			vf->close(vf);
553			mLOG(STATUS, INFO, "Undid state save");
554		}
555		controller->m_backupSaveState.clear();
556	});
557}
558
559void CoreController::loadSave(const QString& path, bool temporary) {
560	m_resetActions.append([this, path, temporary]() {
561		VFile* vf = VFileDevice::open(path, temporary ? O_RDONLY : O_RDWR);
562		if (!vf) {
563			LOG(QT, ERROR) << tr("Failed to open save file: %1").arg(path);
564			return;
565		}
566
567		if (temporary) {
568			m_threadContext.core->loadTemporarySave(m_threadContext.core, vf);
569		} else {
570			m_threadContext.core->loadSave(m_threadContext.core, vf);
571		}
572	});
573	reset();
574}
575
576void CoreController::loadPatch(const QString& patchPath) {
577	Interrupter interrupter(this);
578	VFile* patch = VFileDevice::open(patchPath, O_RDONLY);
579	if (patch) {
580		m_threadContext.core->loadPatch(m_threadContext.core, patch);
581		m_patched = true;
582		patch->close(patch);
583	}
584	if (mCoreThreadHasStarted(&m_threadContext)) {
585		reset();
586	}
587}
588
589void CoreController::replaceGame(const QString& path) {
590	QFileInfo info(path);
591	if (!info.isReadable()) {
592		LOG(QT, ERROR) << tr("Failed to open game file: %1").arg(path);
593		return;
594	}
595	QString fname = info.canonicalFilePath();
596	Interrupter interrupter(this);
597	mDirectorySetDetachBase(&m_threadContext.core->dirs);
598	mCoreLoadFile(m_threadContext.core, fname.toUtf8().constData());
599}
600
601void CoreController::yankPak() {
602#ifdef M_CORE_GBA
603	if (platform() != PLATFORM_GBA) {
604		return;
605	}
606	Interrupter interrupter(this);
607	GBAYankROM(static_cast<GBA*>(m_threadContext.core->board));
608#endif
609}
610
611void CoreController::addKey(int key) {
612	m_activeKeys |= 1 << key;
613}
614
615void CoreController::clearKey(int key) {
616	m_activeKeys &= ~(1 << key);
617}
618
619void CoreController::setAutofire(int key, bool enable) {
620	if (key >= 32 || key < 0) {
621		return;
622	}
623
624	m_autofire[key] = enable;
625	m_autofireStatus[key] = 0;
626}
627
628#ifdef USE_PNG
629void CoreController::screenshot() {
630	mCoreThreadRunFunction(&m_threadContext, [](mCoreThread* context) {
631		mCoreTakeScreenshot(context->core);
632	});
633}
634#endif
635
636void CoreController::setRealTime() {
637	m_threadContext.core->rtc.override = RTC_NO_OVERRIDE;
638}
639
640void CoreController::setFixedTime(const QDateTime& time) {
641	m_threadContext.core->rtc.override = RTC_FIXED;
642	m_threadContext.core->rtc.value = time.toMSecsSinceEpoch();
643}
644
645void CoreController::setFakeEpoch(const QDateTime& time) {
646	m_threadContext.core->rtc.override = RTC_FAKE_EPOCH;
647	m_threadContext.core->rtc.value = time.toMSecsSinceEpoch();
648}
649
650void CoreController::importSharkport(const QString& path) {
651#ifdef M_CORE_GBA
652	if (platform() != PLATFORM_GBA) {
653		return;
654	}
655	VFile* vf = VFileDevice::open(path, O_RDONLY);
656	if (!vf) {
657		LOG(QT, ERROR) << tr("Failed to open snapshot file for reading: %1").arg(path);
658		return;
659	}
660	Interrupter interrupter(this);
661	GBASavedataImportSharkPort(static_cast<GBA*>(m_threadContext.core->board), vf, false);
662	vf->close(vf);
663#endif
664}
665
666void CoreController::exportSharkport(const QString& path) {
667#ifdef M_CORE_GBA
668	if (platform() != PLATFORM_GBA) {
669		return;
670	}
671	VFile* vf = VFileDevice::open(path, O_WRONLY | O_CREAT | O_TRUNC);
672	if (!vf) {
673		LOG(QT, ERROR) << tr("Failed to open snapshot file for writing: %1").arg(path);
674		return;
675	}
676	Interrupter interrupter(this);
677	GBASavedataExportSharkPort(static_cast<GBA*>(m_threadContext.core->board), vf);
678	vf->close(vf);
679#endif
680}
681
682#ifdef M_CORE_GB
683void CoreController::attachPrinter() {
684	if (platform() != PLATFORM_GB) {
685		return;
686	}
687	GB* gb = static_cast<GB*>(m_threadContext.core->board);
688	clearMultiplayerController();
689	GBPrinterCreate(&m_printer.d);
690	m_printer.parent = this;
691	m_printer.d.print = [](GBPrinter* printer, int height, const uint8_t* data) {
692		QGBPrinter* qPrinter = reinterpret_cast<QGBPrinter*>(printer);
693		QImage image(GB_VIDEO_HORIZONTAL_PIXELS, height, QImage::Format_Indexed8);
694		QVector<QRgb> colors;
695		colors.append(qRgb(0xF8, 0xF8, 0xF8));
696		colors.append(qRgb(0xA8, 0xA8, 0xA8));
697		colors.append(qRgb(0x50, 0x50, 0x50));
698		colors.append(qRgb(0x00, 0x00, 0x00));
699		image.setColorTable(colors);
700		for (int y = 0; y < height; ++y) {
701			for (int x = 0; x < GB_VIDEO_HORIZONTAL_PIXELS; x += 4) {
702				uint8_t byte = data[(x + y * GB_VIDEO_HORIZONTAL_PIXELS) / 4];
703				image.setPixel(x + 0, y, (byte & 0xC0) >> 6);
704				image.setPixel(x + 1, y, (byte & 0x30) >> 4);
705				image.setPixel(x + 2, y, (byte & 0x0C) >> 2);
706				image.setPixel(x + 3, y, (byte & 0x03) >> 0);
707			}
708		}
709		QMetaObject::invokeMethod(qPrinter->parent, "imagePrinted", Q_ARG(const QImage&, image));
710	};
711	Interrupter interrupter(this);
712	GBSIOSetDriver(&gb->sio, &m_printer.d.d);
713}
714
715void CoreController::detachPrinter() {
716	if (platform() != PLATFORM_GB) {
717		return;
718	}
719	Interrupter interrupter(this);
720	GB* gb = static_cast<GB*>(m_threadContext.core->board);
721	GBPrinterDonePrinting(&m_printer.d);
722	GBSIOSetDriver(&gb->sio, nullptr);
723}
724
725void CoreController::endPrint() {
726	if (platform() != PLATFORM_GB) {
727		return;
728	}
729	Interrupter interrupter(this);
730	GBPrinterDonePrinting(&m_printer.d);
731}
732#endif
733
734#ifdef M_CORE_GBA
735void CoreController::attachBattleChipGate() {
736	if (platform() != PLATFORM_GBA) {
737		return;
738	}
739	Interrupter interrupter(this);
740	clearMultiplayerController();
741	GBASIOBattlechipGateCreate(&m_battlechip);
742	m_threadContext.core->setPeripheral(m_threadContext.core, mPERIPH_GBA_BATTLECHIP_GATE, &m_battlechip);
743}
744
745void CoreController::detachBattleChipGate() {
746	if (platform() != PLATFORM_GBA) {
747		return;
748	}
749	Interrupter interrupter(this);
750	m_threadContext.core->setPeripheral(m_threadContext.core, mPERIPH_GBA_BATTLECHIP_GATE, nullptr);
751}
752
753void CoreController::setBattleChipId(uint16_t id) {
754	if (platform() != PLATFORM_GBA) {
755		return;
756	}
757	Interrupter interrupter(this);
758	m_battlechip.chipId = id;
759}
760
761void CoreController::setBattleChipFlavor(int flavor) {
762	if (platform() != PLATFORM_GBA) {
763		return;
764	}
765	Interrupter interrupter(this);
766	m_battlechip.flavor = flavor;
767}
768#endif
769
770void CoreController::setAVStream(mAVStream* stream) {
771	Interrupter interrupter(this);
772	m_threadContext.core->setAVStream(m_threadContext.core, stream);
773}
774
775void CoreController::clearAVStream() {
776	Interrupter interrupter(this);
777	m_threadContext.core->setAVStream(m_threadContext.core, nullptr);
778}
779
780void CoreController::clearOverride() {
781	m_override.reset();
782}
783
784void CoreController::startVideoLog(const QString& path) {
785	if (m_vl) {
786		return;
787	}
788
789	Interrupter interrupter(this);
790	m_vl = mVideoLogContextCreate(m_threadContext.core);
791	m_vlVf = VFileDevice::open(path, O_WRONLY | O_CREAT | O_TRUNC);
792	mVideoLogContextSetOutput(m_vl, m_vlVf);
793	mVideoLogContextWriteHeader(m_vl, m_threadContext.core);
794}
795
796void CoreController::endVideoLog() {
797	if (!m_vl) {
798		return;
799	}
800
801	Interrupter interrupter(this);
802	mVideoLogContextDestroy(m_threadContext.core, m_vl);
803	if (m_vlVf) {
804		m_vlVf->close(m_vlVf);
805		m_vlVf = nullptr;
806	}
807	m_vl = nullptr;
808}
809
810void CoreController::setFramebufferHandle(int fb) {
811	Interrupter interrupter(this);
812	if (fb < 0) {
813		m_hwaccel = false;
814	} else {
815		m_threadContext.core->setVideoGLTex(m_threadContext.core, fb);
816		m_hwaccel = true;
817	}
818}
819
820void CoreController::updateKeys() {
821	int activeKeys = m_activeKeys | updateAutofire() | m_inputController->pollEvents();
822	m_threadContext.core->setKeys(m_threadContext.core, activeKeys);
823}
824
825int CoreController::updateAutofire() {
826	int active = 0;
827	for (int k = 0; k < 32; ++k) {
828		if (!m_autofire[k]) {
829			continue;
830		}
831		++m_autofireStatus[k];
832		if (m_autofireStatus[k] >= 2 * m_autofireThreshold) {
833			m_autofireStatus[k] = 0;
834		} else if (m_autofireStatus[k] >= m_autofireThreshold) {
835			active |= 1 << k;
836		}
837	}
838	return active;
839}
840
841void CoreController::finishFrame() {
842	QMutexLocker locker(&m_mutex);
843	if (!m_hwaccel) {
844			memcpy(m_completeBuffer.data(), m_activeBuffer->constData(), m_activeBuffer->size());
845
846		// TODO: Generalize this to triple buffering?
847		m_activeBuffer = &m_buffers[0];
848		if (m_activeBuffer == m_completeBuffer) {
849			m_activeBuffer = &m_buffers[1];
850		}
851		// Copy contents to avoid issues when doing frameskip
852		memcpy(m_activeBuffer->data(), m_completeBuffer.constData(), m_activeBuffer->size());
853		m_threadContext.core->setVideoBuffer(m_threadContext.core, reinterpret_cast<color_t*>(m_activeBuffer->data()), screenDimensions().width());
854	}
855	for (auto& action : m_frameActions) {
856		action();
857	}
858	m_frameActions.clear();
859	updateKeys();
860
861	QMetaObject::invokeMethod(this, "frameAvailable");
862}
863
864void CoreController::updateFastForward() {
865	if (m_fastForward || m_fastForwardForced) {
866		if (m_fastForwardVolume >= 0) {
867			m_threadContext.core->opts.volume = m_fastForwardVolume;
868		}
869		if (m_fastForwardMute >= 0) {
870			m_threadContext.core->opts.mute = m_fastForwardMute;
871		}
872		if (m_fastForwardRatio > 0) {
873			m_threadContext.impl->sync.fpsTarget = m_fpsTarget * m_fastForwardRatio;
874		} else {
875			setSync(false);
876		}
877	} else {
878		if (!mCoreConfigGetIntValue(&m_threadContext.core->config, "volume", &m_threadContext.core->opts.volume)) {
879			m_threadContext.core->opts.volume = 0x100;
880		}
881		int fakeBool = 0;
882		mCoreConfigGetIntValue(&m_threadContext.core->config, "mute", &fakeBool);
883		m_threadContext.core->opts.mute = fakeBool;
884		m_threadContext.impl->sync.fpsTarget = m_fpsTarget;
885		setSync(true);
886	}
887	// XXX: Have a way of just updating volume
888	switch (platform()) {
889#ifdef M_CORE_GBA
890	case PLATFORM_GBA: {
891		GBA* gba = static_cast<GBA*>(m_threadContext.core->board);
892		if (m_threadContext.core->opts.mute) {
893			gba->audio.masterVolume = 0;
894		} else {
895			gba->audio.masterVolume = m_threadContext.core->opts.volume;
896		}
897		break;
898	}
899#endif
900#ifdef M_CORE_GB
901	case PLATFORM_GB: {
902		GB* gb = static_cast<GB*>(m_threadContext.core->board);
903		if (m_threadContext.core->opts.mute) {
904			gb->audio.masterVolume = 0;
905		} else {
906			gb->audio.masterVolume = m_threadContext.core->opts.volume;
907		}
908		break;
909	}
910#endif
911	default:
912		break;
913	}
914}
915
916CoreController::Interrupter::Interrupter(CoreController* parent, bool fromThread)
917	: m_parent(parent)
918{
919	if (!m_parent->thread()->impl) {
920		return;
921	}
922	if (!fromThread) {
923		mCoreThreadInterrupt(m_parent->thread());
924	} else {
925		mCoreThreadInterruptFromThread(m_parent->thread());
926	}
927}
928
929CoreController::Interrupter::Interrupter(std::shared_ptr<CoreController> parent, bool fromThread)
930	: m_parent(parent.get())
931{
932	if (!m_parent->thread()->impl) {
933		return;
934	}
935	if (!fromThread) {
936		mCoreThreadInterrupt(m_parent->thread());
937	} else {
938		mCoreThreadInterruptFromThread(m_parent->thread());
939	}
940}
941
942CoreController::Interrupter::Interrupter(const Interrupter& other)
943	: m_parent(other.m_parent)
944{
945	if (!m_parent->thread()->impl) {
946		return;
947	}
948	mCoreThreadInterrupt(m_parent->thread());
949}
950
951CoreController::Interrupter::~Interrupter() {
952	if (!m_parent->thread()->impl) {
953		return;
954	}
955	mCoreThreadContinue(m_parent->thread());
956}