all repos — mgba @ 1c4b89d0f4219c1940c983b0f58ab7dbb45361ba

mGBA Game Boy Advance Emulator

src/feature/gui/gui-runner.c (view raw)

  1/* Copyright (c) 2013-2016 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 "gui-runner.h"
  7
  8#include <mgba/core/core.h>
  9#include <mgba/core/serialize.h>
 10#include "feature/gui/gui-config.h"
 11#include <mgba/internal/gba/gba.h>
 12#include <mgba/internal/gba/input.h>
 13#include <mgba/gba/interface.h>
 14#include <mgba-util/gui/file-select.h>
 15#include <mgba-util/gui/font.h>
 16#include <mgba-util/gui/menu.h>
 17#include <mgba-util/memory.h>
 18#include <mgba-util/png-io.h>
 19#include <mgba-util/vfs.h>
 20
 21#include <sys/time.h>
 22
 23mLOG_DECLARE_CATEGORY(GUI_RUNNER);
 24mLOG_DEFINE_CATEGORY(GUI_RUNNER, "GUI Runner", "gui.runner");
 25
 26#define AUTOSAVE_GRANULARITY 600
 27#define FPS_GRANULARITY 120
 28#define FPS_BUFFER_SIZE 3
 29
 30enum {
 31	RUNNER_CONTINUE = 1,
 32	RUNNER_EXIT,
 33	RUNNER_SAVE_STATE,
 34	RUNNER_LOAD_STATE,
 35	RUNNER_SCREENSHOT,
 36	RUNNER_CONFIG,
 37	RUNNER_RESET,
 38	RUNNER_COMMAND_MASK = 0xFFFF
 39};
 40
 41#define RUNNER_STATE(X) ((X) << 16)
 42
 43static const struct mInputPlatformInfo _mGUIKeyInfo = {
 44	.platformName = "gui",
 45	.keyId = (const char*[GUI_INPUT_MAX]) {
 46		"Select",
 47		"Back",
 48		"Cancel",
 49		"Up",
 50		"Down",
 51		"Left",
 52		"Right",
 53		[mGUI_INPUT_INCREASE_BRIGHTNESS] = "Increase solar brightness",
 54		[mGUI_INPUT_DECREASE_BRIGHTNESS] = "Decrease solar brightness",
 55		[mGUI_INPUT_SCREEN_MODE] = "Screen mode",
 56		[mGUI_INPUT_SCREENSHOT] = "Take screenshot",
 57		[mGUI_INPUT_FAST_FORWARD_HELD] = "Fast forward (held)",
 58		[mGUI_INPUT_FAST_FORWARD_TOGGLE] = "Fast forward (toggle)",
 59	},
 60	.nKeys = GUI_INPUT_MAX
 61};
 62
 63static void _log(struct mLogger*, int category, enum mLogLevel level, const char* format, va_list args);
 64
 65static struct mGUILogger {
 66	struct mLogger d;
 67	struct VFile* vf;
 68	int logLevel;
 69} logger = {
 70	.d = {
 71		.log = _log
 72	},
 73	.vf = NULL,
 74	.logLevel = 0
 75};
 76
 77static bool _testExtensions(const char* name) {
 78	char ext[PATH_MAX] = {};
 79	separatePath(name, NULL, NULL, ext);
 80
 81	if (!strncmp(ext, "sav", PATH_MAX)) {
 82		return false;
 83	}
 84	if (!strncmp(ext, "png", PATH_MAX)) {
 85		return false;
 86	}
 87	if (!strncmp(ext, "ini", PATH_MAX)) {
 88		return false;
 89	}
 90	if (!strncmp(ext, "ss", 2)) {
 91		return false;
 92	}
 93
 94	return true;
 95}
 96
 97static void _drawBackground(struct GUIBackground* background, void* context) {
 98	UNUSED(context);
 99	struct mGUIBackground* gbaBackground = (struct mGUIBackground*) background;
100	if (gbaBackground->p->drawFrame) {
101		gbaBackground->p->drawFrame(gbaBackground->p, true);
102	}
103}
104
105static void _drawState(struct GUIBackground* background, void* id) {
106	struct mGUIBackground* gbaBackground = (struct mGUIBackground*) background;
107	int stateId = ((int) id) >> 16;
108	if (gbaBackground->p->drawScreenshot) {
109		unsigned w, h;
110		gbaBackground->p->core->desiredVideoDimensions(gbaBackground->p->core, &w, &h);
111		if (gbaBackground->screenshot && gbaBackground->screenshotId == (int) id) {
112			gbaBackground->p->drawScreenshot(gbaBackground->p, gbaBackground->screenshot, w, h, true);
113			return;
114		}
115		struct VFile* vf = mCoreGetState(gbaBackground->p->core, stateId, false);
116		color_t* pixels = gbaBackground->screenshot;
117		if (!pixels) {
118			pixels = anonymousMemoryMap(w * h * 4);
119			gbaBackground->screenshot = pixels;
120		}
121		bool success = false;
122		if (vf && isPNG(vf) && pixels) {
123			png_structp png = PNGReadOpen(vf, PNG_HEADER_BYTES);
124			png_infop info = png_create_info_struct(png);
125			png_infop end = png_create_info_struct(png);
126			if (png && info && end) {
127				success = PNGReadHeader(png, info);
128				success = success && PNGReadPixels(png, info, pixels, w, h, w);
129				success = success && PNGReadFooter(png, end);
130			}
131			PNGReadClose(png, info, end);
132		}
133		if (vf) {
134			vf->close(vf);
135		}
136		if (success) {
137			gbaBackground->p->drawScreenshot(gbaBackground->p, pixels, w, h, true);
138			gbaBackground->screenshotId = (int) id;
139		} else if (gbaBackground->p->drawFrame) {
140			gbaBackground->p->drawFrame(gbaBackground->p, true);
141		}
142	}
143}
144
145static void _updateLux(struct GBALuminanceSource* lux) {
146	UNUSED(lux);
147}
148
149static uint8_t _readLux(struct GBALuminanceSource* lux) {
150	struct mGUIRunnerLux* runnerLux = (struct mGUIRunnerLux*) lux;
151	int value = 0x16;
152	if (runnerLux->luxLevel > 0) {
153		value += GBA_LUX_LEVELS[runnerLux->luxLevel - 1];
154	}
155	return 0xFF - value;
156}
157
158static void _tryAutosave(struct mGUIRunner* runner) {
159	int autosave = false;
160	mCoreConfigGetIntValue(&runner->config, "autosave", &autosave);
161	if (!autosave) {
162		return;
163	}
164
165#ifdef DISABLE_THREADING
166	mCoreSaveState(runner->core, 0, SAVESTATE_SAVEDATA | SAVESTATE_RTC | SAVESTATE_METADATA);
167#else
168	if (!runner->autosave.buffer) {
169		runner->autosave.buffer = VFileMemChunk(NULL, 0);
170	}
171	MutexLock(&runner->autosave.mutex);
172	runner->autosave.core = runner->core;
173	mCoreSaveStateNamed(runner->core, runner->autosave.buffer, SAVESTATE_SAVEDATA | SAVESTATE_RTC | SAVESTATE_METADATA);
174	ConditionWake(&runner->autosave.cond);
175	MutexUnlock(&runner->autosave.mutex);
176#endif
177}
178
179void mGUIInit(struct mGUIRunner* runner, const char* port) {
180	GUIInit(&runner->params);
181	runner->port = port;
182	runner->core = NULL;
183	runner->luminanceSource.d.readLuminance = _readLux;
184	runner->luminanceSource.d.sample = _updateLux;
185	runner->luminanceSource.luxLevel = 0;
186	runner->background.d.draw = _drawBackground;
187	runner->background.p = runner;
188	runner->fps = 0;
189	runner->lastFpsCheck = 0;
190	runner->totalDelta = 0;
191	CircleBufferInit(&runner->fpsBuffer, FPS_BUFFER_SIZE * sizeof(uint32_t));
192
193	mInputMapInit(&runner->params.keyMap, &_mGUIKeyInfo);
194	mCoreConfigInit(&runner->config, runner->port);
195	// TODO: Do we need to load more defaults?
196	mCoreConfigSetDefaultIntValue(&runner->config, "volume", 0x100);
197	mCoreConfigSetDefaultValue(&runner->config, "idleOptimization", "detect");
198	mCoreConfigSetDefaultIntValue(&runner->config, "autoload", true);
199#ifdef DISABLE_THREADING
200	mCoreConfigSetDefaultIntValue(&runner->config, "autosave", false);
201#else
202	mCoreConfigSetDefaultIntValue(&runner->config, "autosave", true);
203#endif
204	mCoreConfigLoad(&runner->config);
205	mCoreConfigGetIntValue(&runner->config, "logLevel", &logger.logLevel);
206
207	char path[PATH_MAX];
208	mCoreConfigDirectory(path, PATH_MAX);
209	strncat(path, PATH_SEP "log", PATH_MAX - strlen(path));
210	logger.vf = VFileOpen(path, O_CREAT | O_WRONLY | O_APPEND);
211	mLogSetDefaultLogger(&logger.d);
212
213	const char* lastPath = mCoreConfigGetValue(&runner->config, "lastDirectory");
214	if (lastPath) {
215		strncpy(runner->params.currentPath, lastPath, PATH_MAX - 1);
216		runner->params.currentPath[PATH_MAX - 1] = '\0';
217	}
218
219#ifndef DISABLE_THREADING
220	if (!runner->autosave.running) {
221		runner->autosave.running = true;
222		MutexInit(&runner->autosave.mutex);
223		ConditionInit(&runner->autosave.cond);
224		ThreadCreate(&runner->autosave.thread, mGUIAutosaveThread, &runner->autosave);
225	}
226#endif
227}
228
229void mGUIDeinit(struct mGUIRunner* runner) {
230#ifndef DISABLE_THREADING
231	MutexLock(&runner->autosave.mutex);
232	runner->autosave.running = false;
233	ConditionWake(&runner->autosave.cond);
234	MutexUnlock(&runner->autosave.mutex);
235
236	ThreadJoin(runner->autosave.thread);
237
238	ConditionDeinit(&runner->autosave.cond);
239	MutexDeinit(&runner->autosave.mutex);
240
241	if (runner->autosave.buffer) {
242		runner->autosave.buffer->close(runner->autosave.buffer);
243	}
244#endif
245
246	if (runner->teardown) {
247		runner->teardown(runner);
248	}
249	CircleBufferDeinit(&runner->fpsBuffer);
250	mInputMapDeinit(&runner->params.keyMap);
251	mCoreConfigDeinit(&runner->config);
252	if (logger.vf) {
253		logger.vf->close(logger.vf);
254		logger.vf = NULL;
255	}
256}
257
258static void _log(struct mLogger* logger, int category, enum mLogLevel level, const char* format, va_list args) {
259	struct mGUILogger* guiLogger = (struct mGUILogger*) logger;
260	if (!guiLogger->vf) {
261		return;
262	}
263	if (!(guiLogger->logLevel & level)) {
264		return;
265	}
266
267	char log[256] = {0};
268	vsnprintf(log, sizeof(log) - 1, format, args);
269	char log2[256] = {0};
270	size_t len = snprintf(log2, sizeof(log2) - 1, "%s: %s\n", mLogCategoryName(category), log);
271	if (len >= sizeof(log2)) {
272		len = sizeof(log2) - 1;
273	}
274	guiLogger->vf->write(guiLogger->vf, log2, len);
275}
276
277void mGUIRun(struct mGUIRunner* runner, const char* path) {
278	struct mGUIBackground drawState = {
279		.d = {
280			.draw = _drawState
281		},
282		.p = runner,
283		.screenshot = 0,
284		.screenshotId = 0
285	};
286	struct GUIMenu pauseMenu = {
287		.title = "Game Paused",
288		.index = 0,
289		.background = &runner->background.d
290	};
291	struct GUIMenu stateSaveMenu = {
292		.title = "Save state",
293		.index = 0,
294		.background = &drawState.d
295	};
296	struct GUIMenu stateLoadMenu = {
297		.title = "Load state",
298		.index = 0,
299		.background = &drawState.d
300	};
301	GUIMenuItemListInit(&pauseMenu.items, 0);
302	GUIMenuItemListInit(&stateSaveMenu.items, 9);
303	GUIMenuItemListInit(&stateLoadMenu.items, 9);
304	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Unpause", .data = (void*) RUNNER_CONTINUE };
305	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Save state", .submenu = &stateSaveMenu };
306	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Load state", .submenu = &stateLoadMenu };
307
308	*GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 1", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE(1)) };
309	*GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 2", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE(2)) };
310	*GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 3", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE(3)) };
311	*GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 4", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE(4)) };
312	*GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 5", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE(5)) };
313	*GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 6", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE(6)) };
314	*GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 7", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE(7)) };
315	*GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 8", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE(8)) };
316	*GUIMenuItemListAppend(&stateSaveMenu.items) = (struct GUIMenuItem) { .title = "State 9", .data = (void*) (RUNNER_SAVE_STATE | RUNNER_STATE(9)) };
317
318	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "Autosave", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(0)) };
319	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 1", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(1)) };
320	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 2", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(2)) };
321	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 3", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(3)) };
322	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 4", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(4)) };
323	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 5", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(5)) };
324	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 6", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(6)) };
325	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 7", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(7)) };
326	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 8", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(8)) };
327	*GUIMenuItemListAppend(&stateLoadMenu.items) = (struct GUIMenuItem) { .title = "State 9", .data = (void*) (RUNNER_LOAD_STATE | RUNNER_STATE(9)) };
328
329	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Take screenshot", .data = (void*) RUNNER_SCREENSHOT };
330	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Configure", .data = (void*) RUNNER_CONFIG };
331	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Reset game", .data = (void*) RUNNER_RESET };
332	*GUIMenuItemListAppend(&pauseMenu.items) = (struct GUIMenuItem) { .title = "Exit game", .data = (void*) RUNNER_EXIT };
333
334	runner->params.drawStart();
335	if (runner->params.guiPrepare) {
336		runner->params.guiPrepare();
337	}
338	GUIFontPrint(runner->params.font, runner->params.width / 2, (GUIFontHeight(runner->params.font) + runner->params.height) / 2, GUI_ALIGN_HCENTER, 0xFFFFFFFF, "Loading...");
339	if (runner->params.guiFinish) {
340		runner->params.guiFinish();
341	}
342	runner->params.drawEnd();
343
344	bool found = false;
345	mLOG(GUI_RUNNER, INFO, "Attempting to load %s", path);
346	runner->core = mCoreFind(path);
347	if (runner->core) {
348		mLOG(GUI_RUNNER, INFO, "Found core");
349		runner->core->init(runner->core);
350		mCoreInitConfig(runner->core, runner->port);
351		mInputMapInit(&runner->core->inputMap, &GBAInputInfo);
352		found = mCoreLoadFile(runner->core, path);
353		if (!found) {
354			mLOG(GUI_RUNNER, WARN, "Failed to load %s!", path);
355			runner->core->deinit(runner->core);
356		}
357	}
358
359	if (!found) {
360		mLOG(GUI_RUNNER, WARN, "Failed to find core for %s!", path);
361		GUIShowMessageBox(&runner->params, GUI_MESSAGE_BOX_OK, 240, "Load failed!");
362		return;
363	}
364	if (runner->core->platform(runner->core) == PLATFORM_GBA) {
365		runner->core->setPeripheral(runner->core, mPERIPH_GBA_LUMINANCE, &runner->luminanceSource.d);
366	}
367	mLOG(GUI_RUNNER, DEBUG, "Loading config...");
368	mCoreLoadForeignConfig(runner->core, &runner->config);
369
370	mLOG(GUI_RUNNER, DEBUG, "Loading save...");
371	mCoreAutoloadSave(runner->core);
372	mCoreAutoloadCheats(runner->core);
373	if (runner->setup) {
374		mLOG(GUI_RUNNER, DEBUG, "Setting up runner...");
375		runner->setup(runner);
376	}
377	if (runner->config.port && runner->keySources) {
378		mLOG(GUI_RUNNER, DEBUG, "Loading key sources for %s...", runner->config.port);
379		size_t i;
380		for (i = 0; runner->keySources[i].id; ++i) {
381			mInputMapLoad(&runner->core->inputMap, runner->keySources[i].id, mCoreConfigGetInput(&runner->config));
382		}
383	}
384	mLOG(GUI_RUNNER, DEBUG, "Reseting...");
385	runner->core->reset(runner->core);
386	mLOG(GUI_RUNNER, DEBUG, "Reset!");
387
388
389	int autoload = false;
390	mCoreConfigGetIntValue(&runner->config, "autoload", &autoload);
391	if (autoload) {
392		mCoreLoadState(runner->core, 0, SAVESTATE_SCREENSHOT | SAVESTATE_RTC);
393	}
394
395	bool running = true;
396
397#ifndef DISABLE_THREADING
398	MutexLock(&runner->autosave.mutex);
399	runner->autosave.core = runner->core;
400	MutexUnlock(&runner->autosave.mutex);
401#endif
402
403	if (runner->gameLoaded) {
404		runner->gameLoaded(runner);
405	}
406	mLOG(GUI_RUNNER, INFO, "Game starting");
407	while (running) {
408		CircleBufferClear(&runner->fpsBuffer);
409		runner->totalDelta = 0;
410		runner->fps = 0;
411		struct timeval tv;
412		gettimeofday(&tv, 0);
413		runner->lastFpsCheck = 1000000LL * tv.tv_sec + tv.tv_usec;
414
415		int frame = 0;
416		bool fastForward = false;
417		while (running) {
418			if (runner->running) {
419				running = runner->running(runner);
420				if (!running) {
421					break;
422				}
423			}
424			uint32_t guiKeys;
425			uint32_t heldKeys;
426			GUIPollInput(&runner->params, &guiKeys, &heldKeys);
427			if (guiKeys & (1 << GUI_INPUT_CANCEL)) {
428				break;
429			}
430			if (guiKeys & (1 << mGUI_INPUT_INCREASE_BRIGHTNESS)) {
431				if (runner->luminanceSource.luxLevel < 10) {
432					++runner->luminanceSource.luxLevel;
433				}
434			}
435			if (guiKeys & (1 << mGUI_INPUT_DECREASE_BRIGHTNESS)) {
436				if (runner->luminanceSource.luxLevel > 0) {
437					--runner->luminanceSource.luxLevel;
438				}
439			}
440			if (guiKeys & (1 << mGUI_INPUT_SCREEN_MODE) && runner->incrementScreenMode) {
441				runner->incrementScreenMode(runner);
442			}
443			if (guiKeys & (1 << mGUI_INPUT_SCREENSHOT)) {
444				mCoreTakeScreenshot(runner->core);
445			}
446			if (runner->setFrameLimiter) {
447				if (guiKeys & (1 << mGUI_INPUT_FAST_FORWARD_TOGGLE)) {
448					fastForward = !fastForward;
449				}
450				if (fastForward || (heldKeys & (1 << mGUI_INPUT_FAST_FORWARD_HELD))) {
451					runner->setFrameLimiter(runner, false);
452				} else {
453					runner->setFrameLimiter(runner, true);
454				}
455			}
456			uint16_t keys = runner->pollGameInput(runner);
457			if (runner->prepareForFrame) {
458				runner->prepareForFrame(runner);
459			}
460			runner->core->setKeys(runner->core, keys);
461			runner->core->runFrame(runner->core);
462			if (runner->drawFrame) {
463				int drawFps = false;
464				mCoreConfigGetIntValue(&runner->config, "fpsCounter", &drawFps);
465
466				runner->params.drawStart();
467				runner->drawFrame(runner, false);
468				if (drawFps) {
469					if (runner->params.guiPrepare) {
470						runner->params.guiPrepare();
471					}
472					GUIFontPrintf(runner->params.font, 0, GUIFontHeight(runner->params.font), GUI_ALIGN_LEFT, 0x7FFFFFFF, "%.2f fps", runner->fps);
473					if (runner->params.guiFinish) {
474						runner->params.guiFinish();
475					}
476				}
477				runner->params.drawEnd();
478
479				if (runner->core->frameCounter(runner->core) % FPS_GRANULARITY == 0) {
480					if (drawFps) {
481						struct timeval tv;
482						gettimeofday(&tv, 0);
483						uint64_t t = 1000000LL * tv.tv_sec + tv.tv_usec;
484						uint64_t delta = t - runner->lastFpsCheck;
485						runner->lastFpsCheck = t;
486						if (delta > 0x7FFFFFFFLL) {
487							CircleBufferClear(&runner->fpsBuffer);
488							runner->fps = 0;
489						}
490						if (CircleBufferSize(&runner->fpsBuffer) == CircleBufferCapacity(&runner->fpsBuffer)) {
491							int32_t last;
492							CircleBufferRead32(&runner->fpsBuffer, &last);
493							runner->totalDelta -= last;
494						}
495						CircleBufferWrite32(&runner->fpsBuffer, delta);
496						runner->totalDelta += delta;
497						runner->fps = (CircleBufferSize(&runner->fpsBuffer) * FPS_GRANULARITY * 1000000.0f) / (runner->totalDelta * sizeof(uint32_t));
498					}
499				}
500				if (frame == AUTOSAVE_GRANULARITY) {
501					frame = 0;
502					_tryAutosave(runner);
503				}
504				++frame;
505			}
506		}
507
508		if (runner->paused) {
509			runner->paused(runner);
510		}
511		if (runner->setFrameLimiter) {
512			runner->setFrameLimiter(runner, true);
513		}
514
515		GUIInvalidateKeys(&runner->params);
516		uint32_t keys = 0xFFFFFFFF; // Huge hack to avoid an extra variable!
517		struct GUIMenuItem* item;
518		enum GUIMenuExitReason reason = GUIShowMenu(&runner->params, &pauseMenu, &item);
519		if (reason == GUI_MENU_EXIT_ACCEPT) {
520			switch (((int) item->data) & RUNNER_COMMAND_MASK) {
521			case RUNNER_EXIT:
522				running = false;
523				keys = 0;
524				break;
525			case RUNNER_RESET:
526				runner->core->reset(runner->core);
527				break;
528			case RUNNER_SAVE_STATE:
529				mCoreSaveState(runner->core, ((int) item->data) >> 16, SAVESTATE_SCREENSHOT | SAVESTATE_SAVEDATA | SAVESTATE_RTC | SAVESTATE_METADATA);
530				break;
531			case RUNNER_LOAD_STATE:
532				mCoreLoadState(runner->core, ((int) item->data) >> 16, SAVESTATE_SCREENSHOT | SAVESTATE_RTC);
533				break;
534			case RUNNER_SCREENSHOT:
535				mCoreTakeScreenshot(runner->core);
536				break;
537			case RUNNER_CONFIG:
538				mGUIShowConfig(runner, runner->configExtra, runner->nConfigExtra);
539				break;
540			case RUNNER_CONTINUE:
541				break;
542			}
543		}
544		int frames = 0;
545		GUIPollInput(&runner->params, 0, &keys);
546		while (keys && frames < 30) {
547			++frames;
548			runner->params.drawStart();
549			runner->drawFrame(runner, true);
550			runner->params.drawEnd();
551			GUIPollInput(&runner->params, 0, &keys);
552		}
553		if (runner->unpaused) {
554			runner->unpaused(runner);
555		}
556	}
557	mLOG(GUI_RUNNER, DEBUG, "Shutting down...");
558	if (runner->gameUnloaded) {
559		runner->gameUnloaded(runner);
560	}
561#ifndef DISABLE_THREADING
562	MutexLock(&runner->autosave.mutex);
563	runner->autosave.core = NULL;
564	MutexUnlock(&runner->autosave.mutex);
565#endif
566
567	int autosave = false;
568	mCoreConfigGetIntValue(&runner->config, "autosave", &autosave);
569	if (autosave) {
570		mCoreSaveState(runner->core, 0, SAVESTATE_SAVEDATA | SAVESTATE_RTC | SAVESTATE_METADATA);
571	}
572
573	mLOG(GUI_RUNNER, DEBUG, "Unloading game...");
574	runner->core->unloadROM(runner->core);
575	drawState.screenshotId = 0;
576	if (drawState.screenshot) {
577		unsigned w, h;
578		runner->core->desiredVideoDimensions(runner->core, &w, &h);
579		mappedMemoryFree(drawState.screenshot, w * h * 4);
580	}
581
582	if (runner->config.port) {
583		mLOG(GUI_RUNNER, DEBUG, "Saving key sources...");
584		if (runner->keySources) {
585			size_t i;
586			for (i = 0; runner->keySources[i].id; ++i) {
587				mInputMapSave(&runner->core->inputMap, runner->keySources[i].id, mCoreConfigGetInput(&runner->config));
588				mInputMapSave(&runner->params.keyMap, runner->keySources[i].id, mCoreConfigGetInput(&runner->config));
589			}
590		}
591		mCoreConfigSave(&runner->config);
592	}
593	mInputMapDeinit(&runner->core->inputMap);
594	mLOG(GUI_RUNNER, DEBUG, "Deinitializing core...");
595	runner->core->deinit(runner->core);
596	runner->core = NULL;
597
598	GUIMenuItemListDeinit(&pauseMenu.items);
599	GUIMenuItemListDeinit(&stateSaveMenu.items);
600	GUIMenuItemListDeinit(&stateLoadMenu.items);
601	mLOG(GUI_RUNNER, INFO, "Game stopped!");
602}
603
604void mGUIRunloop(struct mGUIRunner* runner) {
605	if (runner->keySources) {
606		mLOG(GUI_RUNNER, DEBUG, "Loading key sources for %s...", runner->config.port);
607		size_t i;
608		for (i = 0; runner->keySources[i].id; ++i) {
609			mInputMapLoad(&runner->params.keyMap, runner->keySources[i].id, mCoreConfigGetInput(&runner->config));
610		}
611	}
612	while (true) {
613		char path[PATH_MAX];
614		if (!GUISelectFile(&runner->params, path, sizeof(path), _testExtensions, NULL)) {
615			break;
616		}
617		mCoreConfigSetValue(&runner->config, "lastDirectory", runner->params.currentPath);
618		mCoreConfigSave(&runner->config);
619		mGUIRun(runner, path);
620	}
621}
622
623#ifndef DISABLE_THREADING
624THREAD_ENTRY mGUIAutosaveThread(void* context) {
625	struct mGUIAutosaveContext* autosave = context;
626	MutexLock(&autosave->mutex);
627	while (autosave->running) {
628		ConditionWait(&autosave->cond, &autosave->mutex);
629		if (autosave->running && autosave->core) {
630			struct VFile* vf = mCoreGetState(autosave->core, 0, true);
631			void* mem = autosave->buffer->map(autosave->buffer, autosave->buffer->size(autosave->buffer), MAP_READ);
632			vf->write(vf, mem, autosave->buffer->size(autosave->buffer));
633			autosave->buffer->unmap(autosave->buffer, mem, autosave->buffer->size(autosave->buffer));
634			vf->close(vf);
635		}
636	}
637	MutexUnlock(&autosave->mutex);
638}
639#endif