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