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
11#include <QDateTime>
12#include <QThread>
13
14#include <ctime>
15
16extern "C" {
17#include "gba/audio.h"
18#include "gba/gba.h"
19#include "gba/serialize.h"
20#include "gba/renderers/video-software.h"
21#include "gba/supervisor/config.h"
22#include "util/vfs.h"
23}
24
25using namespace QGBA;
26using namespace std;
27
28const int GameController::LUX_LEVELS[10] = { 5, 11, 18, 27, 42, 62, 84, 109, 139, 183 };
29
30GameController::GameController(QObject* parent)
31 : QObject(parent)
32 , m_drawContext(new uint32_t[256 * 256])
33 , m_threadContext()
34 , m_activeKeys(0)
35 , m_logLevels(0)
36 , m_gameOpen(false)
37 , m_audioThread(new QThread(this))
38 , m_audioProcessor(AudioProcessor::create())
39 , m_videoSync(VIDEO_SYNC)
40 , m_audioSync(AUDIO_SYNC)
41 , m_turbo(false)
42 , m_turboForced(false)
43 , m_inputController(nullptr)
44{
45 m_renderer = new GBAVideoSoftwareRenderer;
46 GBAVideoSoftwareRendererCreate(m_renderer);
47 m_renderer->outputBuffer = (color_t*) m_drawContext;
48 m_renderer->outputBufferStride = 256;
49
50 GBACheatDeviceCreate(&m_cheatDevice);
51
52 m_threadContext.state = THREAD_INITIALIZED;
53 m_threadContext.debugger = 0;
54 m_threadContext.frameskip = 0;
55 m_threadContext.bios = 0;
56 m_threadContext.renderer = &m_renderer->d;
57 m_threadContext.userData = this;
58 m_threadContext.rewindBufferCapacity = 0;
59 m_threadContext.cheats = &m_cheatDevice;
60 m_threadContext.logLevel = -1;
61
62 m_lux.p = this;
63 m_lux.sample = [] (GBALuminanceSource* context) {
64 GameControllerLux* lux = static_cast<GameControllerLux*>(context);
65 lux->value = 0xFF - lux->p->m_luxValue;
66 };
67
68 m_lux.readLuminance = [] (GBALuminanceSource* context) {
69 GameControllerLux* lux = static_cast<GameControllerLux*>(context);
70 return lux->value;
71 };
72 setLuminanceLevel(0);
73
74 m_rtc.p = this;
75 m_rtc.override = GameControllerRTC::NO_OVERRIDE;
76 m_rtc.sample = [] (GBARTCSource* context) { };
77 m_rtc.unixTime = [] (GBARTCSource* context) -> time_t {
78 GameControllerRTC* rtc = static_cast<GameControllerRTC*>(context);
79 switch (rtc->override) {
80 case GameControllerRTC::NO_OVERRIDE:
81 default:
82 return time(nullptr);
83 case GameControllerRTC::FIXED:
84 return rtc->value;
85 case GameControllerRTC::FAKE_EPOCH:
86 return rtc->value + rtc->p->m_threadContext.gba->video.frameCounter * (int64_t) VIDEO_TOTAL_LENGTH / GBA_ARM7TDMI_FREQUENCY;
87 }
88 };
89
90 m_threadContext.startCallback = [] (GBAThread* context) {
91 GameController* controller = static_cast<GameController*>(context->userData);
92 controller->m_audioProcessor->setInput(context);
93 // Override the GBA object's log level to prevent stdout spew
94 context->gba->logLevel = GBA_LOG_FATAL;
95 context->gba->luminanceSource = &controller->m_lux;
96 context->gba->rtcSource = &controller->m_rtc;
97 controller->gameStarted(context);
98 };
99
100 m_threadContext.cleanCallback = [] (GBAThread* context) {
101 GameController* controller = static_cast<GameController*>(context->userData);
102 controller->gameStopped(context);
103 };
104
105 m_threadContext.frameCallback = [] (GBAThread* context) {
106 GameController* controller = static_cast<GameController*>(context->userData);
107 controller->m_pauseMutex.lock();
108 if (controller->m_pauseAfterFrame) {
109 GBAThreadPauseFromThread(context);
110 controller->m_pauseAfterFrame = false;
111 controller->gamePaused(&controller->m_threadContext);
112 }
113 controller->m_pauseMutex.unlock();
114 controller->frameAvailable(controller->m_drawContext);
115 };
116
117 m_threadContext.logHandler = [] (GBAThread* context, enum GBALogLevel level, const char* format, va_list args) {
118 GameController* controller = static_cast<GameController*>(context->userData);
119 if (level == GBA_LOG_FATAL) {
120 QMetaObject::invokeMethod(controller, "crashGame", Q_ARG(const QString&, QString().vsprintf(format, args)));
121 } else if (!(controller->m_logLevels & level)) {
122 return;
123 }
124 controller->postLog(level, QString().vsprintf(format, args));
125 };
126
127 m_audioThread->start(QThread::TimeCriticalPriority);
128 m_audioProcessor->moveToThread(m_audioThread);
129 connect(this, SIGNAL(gameStarted(GBAThread*)), m_audioProcessor, SLOT(start()));
130 connect(this, SIGNAL(gameStopped(GBAThread*)), m_audioProcessor, SLOT(pause()));
131 connect(this, SIGNAL(gamePaused(GBAThread*)), m_audioProcessor, SLOT(pause()));
132 connect(this, SIGNAL(gameUnpaused(GBAThread*)), m_audioProcessor, SLOT(start()));
133
134#ifdef BUILD_SDL
135 connect(this, SIGNAL(frameAvailable(const uint32_t*)), this, SLOT(testSDLEvents()));
136#endif
137}
138
139GameController::~GameController() {
140 m_audioThread->quit();
141 m_audioThread->wait();
142 disconnect();
143 closeGame();
144 GBACheatDeviceDestroy(&m_cheatDevice);
145 delete m_renderer;
146 delete[] m_drawContext;
147}
148
149void GameController::setOverride(const GBACartridgeOverride& override) {
150 m_threadContext.override = override;
151 m_threadContext.hasOverride = true;
152}
153
154void GameController::setOptions(const GBAOptions* opts) {
155 setFrameskip(opts->frameskip);
156 setAudioSync(opts->audioSync);
157 setVideoSync(opts->videoSync);
158 setSkipBIOS(opts->skipBios);
159 setRewind(opts->rewindEnable, opts->rewindBufferCapacity, opts->rewindBufferInterval);
160
161 threadInterrupt();
162 m_threadContext.idleOptimization = opts->idleOptimization;
163 threadContinue();
164}
165
166#ifdef USE_GDB_STUB
167ARMDebugger* GameController::debugger() {
168 return m_threadContext.debugger;
169}
170
171void GameController::setDebugger(ARMDebugger* debugger) {
172 threadInterrupt();
173 if (m_threadContext.debugger && GBAThreadIsActive(&m_threadContext)) {
174 GBADetachDebugger(m_threadContext.gba);
175 }
176 m_threadContext.debugger = debugger;
177 if (m_threadContext.debugger && GBAThreadIsActive(&m_threadContext)) {
178 GBAAttachDebugger(m_threadContext.gba, m_threadContext.debugger);
179 }
180 threadContinue();
181}
182#endif
183
184void GameController::loadGame(const QString& path, bool dirmode) {
185 closeGame();
186 if (!dirmode) {
187 QFile file(path);
188 if (!file.open(QIODevice::ReadOnly)) {
189 return;
190 }
191 file.close();
192 }
193
194 m_fname = path;
195 m_dirmode = dirmode;
196 openGame();
197}
198
199void GameController::openGame() {
200 m_gameOpen = true;
201
202 m_pauseAfterFrame = false;
203
204 if (m_turbo) {
205 m_threadContext.sync.videoFrameWait = false;
206 m_threadContext.sync.audioWait = false;
207 } else {
208 m_threadContext.sync.videoFrameWait = m_videoSync;
209 m_threadContext.sync.audioWait = m_audioSync;
210 }
211
212 m_threadContext.gameDir = 0;
213 m_threadContext.fname = strdup(m_fname.toLocal8Bit().constData());
214 if (m_dirmode) {
215 m_threadContext.gameDir = VDirOpen(m_threadContext.fname);
216 m_threadContext.stateDir = m_threadContext.gameDir;
217 } else {
218 m_threadContext.rom = VFileOpen(m_threadContext.fname, O_RDONLY);
219#if USE_LIBZIP
220 if (!m_threadContext.gameDir) {
221 m_threadContext.gameDir = VDirOpenZip(m_threadContext.fname, 0);
222 }
223#endif
224#if USE_LZMA
225 if (!m_threadContext.gameDir) {
226 m_threadContext.gameDir = VDirOpen7z(m_threadContext.fname, 0);
227 }
228#endif
229 }
230
231 if (!m_bios.isNull()) {
232 m_threadContext.bios = VFileOpen(m_bios.toLocal8Bit().constData(), O_RDONLY);
233 }
234
235 if (!m_patch.isNull()) {
236 m_threadContext.patch = VFileOpen(m_patch.toLocal8Bit().constData(), O_RDONLY);
237 }
238
239 if (!GBAThreadStart(&m_threadContext)) {
240 m_gameOpen = false;
241 emit gameFailed();
242 }
243}
244
245void GameController::loadBIOS(const QString& path) {
246 if (m_bios == path) {
247 return;
248 }
249 m_bios = path;
250 if (m_gameOpen) {
251 closeGame();
252 openGame();
253 }
254}
255
256void GameController::loadPatch(const QString& path) {
257 if (m_gameOpen) {
258 closeGame();
259 m_patch = path;
260 openGame();
261 } else {
262 m_patch = path;
263 }
264}
265
266void GameController::closeGame() {
267 if (!m_gameOpen) {
268 return;
269 }
270 if (GBAThreadIsPaused(&m_threadContext)) {
271 GBAThreadUnpause(&m_threadContext);
272 }
273 GBAThreadEnd(&m_threadContext);
274 GBAThreadJoin(&m_threadContext);
275 if (m_threadContext.fname) {
276 free(const_cast<char*>(m_threadContext.fname));
277 m_threadContext.fname = nullptr;
278 }
279
280 m_patch = QString();
281
282 for (size_t i = 0; i < GBACheatSetsSize(&m_cheatDevice.cheats); ++i) {
283 GBACheatSet* set = *GBACheatSetsGetPointer(&m_cheatDevice.cheats, i);
284 GBACheatSetDeinit(set);
285 delete set;
286 }
287 GBACheatSetsClear(&m_cheatDevice.cheats);
288
289 m_gameOpen = false;
290 emit gameStopped(&m_threadContext);
291}
292
293void GameController::crashGame(const QString& crashMessage) {
294 closeGame();
295 emit gameCrashed(crashMessage);
296}
297
298bool GameController::isPaused() {
299 if (!m_gameOpen) {
300 return false;
301 }
302 return GBAThreadIsPaused(&m_threadContext);
303}
304
305void GameController::setPaused(bool paused) {
306 if (paused == GBAThreadIsPaused(&m_threadContext)) {
307 return;
308 }
309 if (paused) {
310 GBAThreadPause(&m_threadContext);
311 emit gamePaused(&m_threadContext);
312 } else {
313 GBAThreadUnpause(&m_threadContext);
314 emit gameUnpaused(&m_threadContext);
315 }
316}
317
318void GameController::reset() {
319 GBAThreadReset(&m_threadContext);
320}
321
322void GameController::threadInterrupt() {
323 if (m_gameOpen) {
324 GBAThreadInterrupt(&m_threadContext);
325 }
326}
327
328void GameController::threadContinue() {
329 if (m_gameOpen) {
330 GBAThreadContinue(&m_threadContext);
331 }
332}
333
334void GameController::frameAdvance() {
335 m_pauseMutex.lock();
336 m_pauseAfterFrame = true;
337 setPaused(false);
338 m_pauseMutex.unlock();
339}
340
341void GameController::setRewind(bool enable, int capacity, int interval) {
342 if (m_gameOpen) {
343 threadInterrupt();
344 GBARewindSettingsChanged(&m_threadContext, enable ? capacity : 0, enable ? interval : 0);
345 threadContinue();
346 } else {
347 if (enable) {
348 m_threadContext.rewindBufferInterval = interval;
349 m_threadContext.rewindBufferCapacity = capacity;
350 } else {
351 m_threadContext.rewindBufferInterval = 0;
352 m_threadContext.rewindBufferCapacity = 0;
353 }
354 }
355}
356
357void GameController::rewind(int states) {
358 threadInterrupt();
359 if (!states) {
360 GBARewindAll(&m_threadContext);
361 } else {
362 GBARewind(&m_threadContext, states);
363 }
364 threadContinue();
365}
366
367void GameController::keyPressed(int key) {
368 int mappedKey = 1 << key;
369 m_activeKeys |= mappedKey;
370 updateKeys();
371}
372
373void GameController::keyReleased(int key) {
374 int mappedKey = 1 << key;
375 m_activeKeys &= ~mappedKey;
376 updateKeys();
377}
378
379void GameController::clearKeys() {
380 m_activeKeys = 0;
381 updateKeys();
382}
383
384void GameController::setAudioBufferSamples(int samples) {
385 threadInterrupt();
386 redoSamples(samples);
387 threadContinue();
388 QMetaObject::invokeMethod(m_audioProcessor, "setBufferSamples", Q_ARG(int, samples));
389}
390
391void GameController::setFPSTarget(float fps) {
392 threadInterrupt();
393 m_threadContext.fpsTarget = fps;
394 redoSamples(m_audioProcessor->getBufferSamples());
395 threadContinue();
396 QMetaObject::invokeMethod(m_audioProcessor, "inputParametersChanged");
397}
398
399void GameController::setSkipBIOS(bool set) {
400 threadInterrupt();
401 m_threadContext.skipBios = set;
402 threadContinue();
403}
404
405void GameController::loadState(int slot) {
406 threadInterrupt();
407 GBALoadState(&m_threadContext, m_threadContext.stateDir, slot);
408 threadContinue();
409 emit stateLoaded(&m_threadContext);
410 emit frameAvailable(m_drawContext);
411}
412
413void GameController::saveState(int slot) {
414 threadInterrupt();
415 GBASaveState(&m_threadContext, m_threadContext.stateDir, slot, true);
416 threadContinue();
417}
418
419void GameController::setVideoSync(bool set) {
420 m_videoSync = set;
421 if (!m_turbo) {
422 threadInterrupt();
423 m_threadContext.sync.videoFrameWait = set;
424 threadContinue();
425 }
426}
427
428void GameController::setAudioSync(bool set) {
429 m_audioSync = set;
430 if (!m_turbo) {
431 threadInterrupt();
432 m_threadContext.sync.audioWait = set;
433 threadContinue();
434 }
435}
436
437void GameController::setFrameskip(int skip) {
438 m_threadContext.frameskip = skip;
439}
440
441void GameController::setTurbo(bool set, bool forced) {
442 if (m_turboForced && !forced) {
443 return;
444 }
445 m_turbo = set;
446 m_turboForced = set && forced;
447 threadInterrupt();
448 m_threadContext.sync.audioWait = set ? false : m_audioSync;
449 m_threadContext.sync.videoFrameWait = set ? false : m_videoSync;
450 threadContinue();
451}
452
453void GameController::setAVStream(GBAAVStream* stream) {
454 threadInterrupt();
455 m_threadContext.stream = stream;
456 threadContinue();
457}
458
459void GameController::clearAVStream() {
460 threadInterrupt();
461 m_threadContext.stream = nullptr;
462 threadContinue();
463}
464
465void GameController::reloadAudioDriver() {
466 QMetaObject::invokeMethod(m_audioProcessor, "pause", Qt::BlockingQueuedConnection);
467 int samples = m_audioProcessor->getBufferSamples();
468 delete m_audioProcessor;
469 m_audioProcessor = AudioProcessor::create();
470 m_audioProcessor->setBufferSamples(samples);
471 m_audioProcessor->moveToThread(m_audioThread);
472 connect(this, SIGNAL(gameStarted(GBAThread*)), m_audioProcessor, SLOT(start()));
473 connect(this, SIGNAL(gameStopped(GBAThread*)), m_audioProcessor, SLOT(pause()));
474 connect(this, SIGNAL(gamePaused(GBAThread*)), m_audioProcessor, SLOT(pause()));
475 connect(this, SIGNAL(gameUnpaused(GBAThread*)), m_audioProcessor, SLOT(start()));
476 if (isLoaded()) {
477 m_audioProcessor->setInput(&m_threadContext);
478 QMetaObject::invokeMethod(m_audioProcessor, "start");
479 }
480}
481
482void GameController::setLuminanceValue(uint8_t value) {
483 m_luxValue = value;
484 value = std::max<int>(value - 0x16, 0);
485 m_luxLevel = 10;
486 for (int i = 0; i < 10; ++i) {
487 if (value < LUX_LEVELS[i]) {
488 m_luxLevel = i;
489 break;
490 }
491 }
492 emit luminanceValueChanged(m_luxValue);
493}
494
495void GameController::setLuminanceLevel(int level) {
496 int value = 0x16;
497 level = std::max(0, std::min(10, level));
498 if (level > 0) {
499 value += LUX_LEVELS[level - 1];
500 }
501 setLuminanceValue(value);
502}
503
504void GameController::setRealTime() {
505 m_rtc.override = GameControllerRTC::NO_OVERRIDE;
506}
507
508void GameController::setFixedTime(const QDateTime& time) {
509 m_rtc.override = GameControllerRTC::FIXED;
510 m_rtc.value = time.toMSecsSinceEpoch() / 1000;
511}
512
513void GameController::setFakeEpoch(const QDateTime& time) {
514 m_rtc.override = GameControllerRTC::FAKE_EPOCH;
515 m_rtc.value = time.toMSecsSinceEpoch() / 1000;
516}
517
518void GameController::updateKeys() {
519 int activeKeys = m_activeKeys;
520#ifdef BUILD_SDL
521 activeKeys |= m_activeButtons;
522#endif
523 m_threadContext.activeKeys = activeKeys;
524}
525
526void GameController::redoSamples(int samples) {
527#if RESAMPLE_LIBRARY != RESAMPLE_BLIP_BUF
528 float sampleRate = 0x8000;
529 float ratio;
530 if (m_threadContext.gba) {
531 sampleRate = m_threadContext.gba->audio.sampleRate;
532 }
533 ratio = GBAAudioCalculateRatio(sampleRate, m_threadContext.fpsTarget, 44100);
534 m_threadContext.audioBuffers = ceil(samples / ratio);
535#else
536 m_threadContext.audioBuffers = samples;
537#endif
538 if (m_threadContext.gba) {
539 GBAAudioResizeBuffer(&m_threadContext.gba->audio, m_threadContext.audioBuffers);
540 }
541}
542
543void GameController::setLogLevel(int levels) {
544 threadInterrupt();
545 m_logLevels = levels;
546 threadContinue();
547}
548
549void GameController::enableLogLevel(int levels) {
550 threadInterrupt();
551 m_logLevels |= levels;
552 threadContinue();
553}
554
555void GameController::disableLogLevel(int levels) {
556 threadInterrupt();
557 m_logLevels &= ~levels;
558 threadContinue();
559}
560
561#ifdef BUILD_SDL
562void GameController::testSDLEvents() {
563 if (!m_inputController) {
564 return;
565 }
566
567 m_activeButtons = m_inputController->testSDLEvents();
568 updateKeys();
569}
570#endif