1/* Copyright (c) 2013-2015 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 <mgba/core/blip_buf.h>
  7#include <mgba/core/cheats.h>
  8#include <mgba/core/config.h>
  9#include <mgba/core/core.h>
 10#include <mgba/core/serialize.h>
 11#include <mgba/gb/core.h>
 12#include <mgba/gba/core.h>
 13
 14#include <mgba/feature/commandline.h>
 15#include <mgba-util/socket.h>
 16#include <mgba-util/string.h>
 17#include <mgba-util/vfs.h>
 18
 19#ifdef _3DS
 20#include <3ds.h>
 21#endif
 22#ifdef __SWITCH__
 23#include <switch.h>
 24#endif
 25#ifdef GEKKO
 26#include <fat.h>
 27#include <gccore.h>
 28#ifdef FIXED_ROM_BUFFER
 29uint32_t* romBuffer;
 30size_t romBufferSize;
 31#endif
 32#endif
 33
 34#include <errno.h>
 35#include <fcntl.h>
 36#include <signal.h>
 37#include <inttypes.h>
 38#include <sys/time.h>
 39
 40#define PERF_OPTIONS "DF:L:NPS:T"
 41#define PERF_USAGE \
 42	"\nBenchmark options:\n" \
 43	"  -F FRAMES        Run for the specified number of FRAMES before exiting\n" \
 44	"  -N               Disable video rendering entirely\n" \
 45	"  -T               Use threaded video rendering\n" \
 46	"  -P               CSV output, useful for parsing\n" \
 47	"  -S SEC           Run for SEC in-game seconds before exiting\n" \
 48	"  -L FILE          Load a savestate when starting the test\n" \
 49	"  -D               Act as a server"
 50
 51struct PerfOpts {
 52	bool noVideo;
 53	bool threadedVideo;
 54	bool csv;
 55	unsigned duration;
 56	unsigned frames;
 57	char* savestate;
 58	bool server;
 59};
 60
 61#ifdef _3DS
 62extern bool allocateRomBuffer(void);
 63FS_Archive sdmcArchive;
 64#endif
 65#ifdef __SWITCH__
 66TimeType __nx_time_type = TimeType_LocalSystemClock;
 67#endif
 68
 69static void _mPerfRunloop(struct mCore* context, int* frames, bool quiet);
 70static void _mPerfShutdown(int signal);
 71static bool _parsePerfOpts(struct mSubParser* parser, int option, const char* arg);
 72static void _log(struct mLogger*, int, enum mLogLevel, const char*, va_list);
 73static bool _mPerfRunCore(const char* fname, const struct mArguments*, const struct PerfOpts*);
 74static bool _mPerfRunServer(const struct mArguments*, const struct PerfOpts*);
 75
 76static bool _dispatchExiting = false;
 77static struct VFile* _savestate = 0;
 78static void* _outputBuffer = NULL;
 79static Socket _socket = INVALID_SOCKET;
 80static Socket _server = INVALID_SOCKET;
 81
 82int main(int argc, char** argv) {
 83#ifdef _3DS
 84	UNUSED(_mPerfShutdown);
 85    gfxInitDefault();
 86    osSetSpeedupEnable(true);
 87	consoleInit(GFX_BOTTOM, NULL);
 88	if (!allocateRomBuffer()) {
 89		return 1;
 90	}
 91#elif defined(__SWITCH__)
 92	UNUSED(_mPerfShutdown);
 93	consoleInit(NULL);
 94#elif defined(GEKKO)
 95	VIDEO_Init();
 96	VIDEO_SetBlack(true);
 97	VIDEO_Flush();
 98	VIDEO_WaitVSync();
 99
100	GXRModeObj* vmode = VIDEO_GetPreferredMode(0);
101	void* xfb = MEM_K0_TO_K1(SYS_AllocateFramebuffer(vmode));
102	console_init(xfb, 20, 20, vmode->fbWidth, vmode->xfbHeight, vmode->fbWidth * VI_DISPLAY_PIX_SZ);
103
104	VIDEO_Configure(vmode);
105	VIDEO_SetNextFramebuffer(xfb);
106	VIDEO_SetBlack(false);
107	VIDEO_Flush();
108	VIDEO_WaitVSync();
109	VIDEO_WaitVSync();
110	fatInitDefault();
111
112#ifdef FIXED_ROM_BUFFER
113	romBufferSize = 0x02000000;
114	romBuffer = SYS_GetArena2Lo();
115	SYS_SetArena2Lo((void*)((intptr_t) romBuffer + romBufferSize));
116#endif
117#else
118	signal(SIGINT, _mPerfShutdown);
119#endif
120	int didFail = 0;
121
122	struct mLogger logger = { .log = _log };
123	mLogSetDefaultLogger(&logger);
124
125	struct PerfOpts perfOpts = { false, false, false, 0, 0, 0, false };
126	struct mSubParser subparser = {
127		.usage = PERF_USAGE,
128		.parse = _parsePerfOpts,
129		.extraOptions = PERF_OPTIONS,
130		.opts = &perfOpts
131	};
132
133	struct mArguments args = {};
134	bool parsed = parseArguments(&args, argc, argv, &subparser);
135	if (!args.fname && !perfOpts.server) {
136		parsed = false;
137	}
138	if (!parsed || args.showHelp) {
139		usage(argv[0], PERF_USAGE);
140		didFail = !parsed;
141		goto cleanup;
142	}
143
144	if (args.showVersion) {
145		version(argv[0]);
146		goto cleanup;
147	}
148
149	if (perfOpts.savestate) {
150		_savestate = VFileOpen(perfOpts.savestate, O_RDONLY);
151		free(perfOpts.savestate);
152	}
153
154	_outputBuffer = malloc(256 * 256 * 4);
155	if (perfOpts.csv) {
156		puts("game_code,frames,duration,renderer");
157#ifdef __SWITCH__
158		consoleUpdate(NULL);
159#elif defined(GEKKO)
160		VIDEO_WaitVSync();
161#endif
162	}
163	if (perfOpts.server) {
164		didFail = !_mPerfRunServer(&args, &perfOpts);
165	} else {
166		didFail = !_mPerfRunCore(args.fname, &args, &perfOpts);
167	}
168	free(_outputBuffer);
169
170	if (_savestate) {
171		_savestate->close(_savestate);
172	}
173	cleanup:
174	freeArguments(&args);
175
176#ifdef _3DS
177	gfxExit();
178	acExit();
179#elif defined(__SWITCH__)
180	consoleExit(NULL);
181#elif defined(GEKKO)
182	VIDEO_SetBlack(true);
183	VIDEO_Flush();
184	VIDEO_WaitVSync();
185	VIDEO_WaitVSync();
186#endif
187
188	return didFail;
189}
190
191bool _mPerfRunCore(const char* fname, const struct mArguments* args, const struct PerfOpts* perfOpts) {
192	struct mCore* core = mCoreFind(fname);
193	if (!core) {
194		return false;
195	}
196
197	// TODO: Put back debugger
198	char gameCode[9] = { 0 };
199
200	core->init(core);
201	if (!perfOpts->noVideo) {
202		core->setVideoBuffer(core, _outputBuffer, 256);
203	}
204	mCoreLoadFile(core, fname);
205	mCoreConfigInit(&core->config, "perf");
206	mCoreConfigLoad(&core->config);
207
208	if (perfOpts->threadedVideo) {
209		mCoreConfigSetOverrideIntValue(&core->config, "threadedVideo", 1);
210	} else {
211		mCoreConfigSetOverrideIntValue(&core->config, "threadedVideo", 0);
212	}
213
214	struct mCoreOptions opts = {};
215	mCoreConfigMap(&core->config, &opts);
216	opts.audioSync = false;
217	opts.videoSync = false;
218	applyArguments(args, NULL, &core->config);
219	mCoreConfigLoadDefaults(&core->config, &opts);
220	mCoreConfigSetDefaultValue(&core->config, "idleOptimization", "detect");
221	mCoreLoadConfig(core);
222
223	core->reset(core);
224	if (_savestate) {
225		mCoreLoadStateNamed(core, _savestate, 0);
226	}
227
228	core->getGameCode(core, gameCode);
229
230	int frames = perfOpts->frames;
231	if (!frames) {
232		frames = perfOpts->duration * 60;
233	}
234	struct timeval tv;
235	gettimeofday(&tv, 0);
236	uint64_t start = 1000000LL * tv.tv_sec + tv.tv_usec;
237	_mPerfRunloop(core, &frames, perfOpts->csv);
238	gettimeofday(&tv, 0);
239	uint64_t end = 1000000LL * tv.tv_sec + tv.tv_usec;
240	uint64_t duration = end - start;
241
242	mCoreConfigFreeOpts(&opts);
243	mCoreConfigDeinit(&core->config);
244	core->deinit(core);
245
246	float scaledFrames = frames * 1000000.f;
247	if (perfOpts->csv) {
248		char buffer[256];
249		const char* rendererName;
250		if (perfOpts->noVideo) {
251			rendererName = "none";
252		} else if (perfOpts->threadedVideo) {
253			rendererName = "threaded-software";
254		} else {
255			rendererName = "software";
256		}
257		snprintf(buffer, sizeof(buffer), "%s,%i,%" PRIu64 ",%s\n", gameCode, frames, duration, rendererName);
258		printf("%s", buffer);
259		if (_socket != INVALID_SOCKET) {
260			SocketSend(_socket, buffer, strlen(buffer));
261		}
262	} else {
263		printf("%u frames in %" PRIu64 " microseconds: %g fps (%gx)\n", frames, duration, scaledFrames / duration, scaledFrames / (duration * 60.f));
264	}
265#ifdef __SWITCH__
266	consoleUpdate(NULL);
267#endif
268
269	return true;
270}
271
272static void _mPerfRunloop(struct mCore* core, int* frames, bool quiet) {
273	struct timeval lastEcho;
274	gettimeofday(&lastEcho, 0);
275	int duration = *frames;
276	*frames = 0;
277	int lastFrames = 0;
278	while (!_dispatchExiting) {
279		core->runFrame(core);
280		++*frames;
281		++lastFrames;
282		if (!quiet) {
283			struct timeval currentTime;
284			long timeDiff;
285			gettimeofday(&currentTime, 0);
286			timeDiff = currentTime.tv_sec - lastEcho.tv_sec;
287			timeDiff *= 1000;
288			timeDiff += (currentTime.tv_usec - lastEcho.tv_usec) / 1000;
289			if (timeDiff >= 1000) {
290				printf("\033[2K\rCurrent FPS: %g (%gx)", lastFrames / (timeDiff / 1000.0f), lastFrames / (float) (60 * (timeDiff / 1000.0f)));
291				fflush(stdout);
292#ifdef __SWITCH__
293				consoleUpdate(NULL);
294#endif
295				lastEcho = currentTime;
296				lastFrames = 0;
297			}
298		}
299		if (duration > 0 && *frames == duration) {
300			break;
301		}
302	}
303	if (!quiet) {
304		printf("\033[2K\r");
305	}
306}
307
308static bool _mPerfRunServer(const struct mArguments* args, const struct PerfOpts* perfOpts) {
309	SocketSubsystemInit();
310	_server = SocketOpenTCP(7216, NULL);
311	if (SOCKET_FAILED(_server)) {
312		SocketSubsystemDeinit();
313		return false;
314	}
315	if (SOCKET_FAILED(SocketListen(_server, 0))) {
316		SocketClose(_server);
317		SocketSubsystemDeinit();
318		return false;
319	}
320	_socket = SocketAccept(_server, NULL);
321	if (SOCKET_FAILED(_socket)) {
322		SocketClose(_server);
323		SocketSubsystemDeinit();
324		return false;
325	}
326	if (perfOpts->csv) {
327		const char* header = "game_code,frames,duration,renderer\n";
328		SocketSend(_socket, header, strlen(header));
329	}
330	char path[PATH_MAX];
331	memset(path, 0, sizeof(path));
332	ssize_t i;
333	while ((i = SocketRecv(_socket, path, sizeof(path) - 1)) > 0) {
334		path[i] = '\0';
335		char* nl = strchr(path, '\n');
336		if (nl == path) {
337			break;
338		}
339		if (nl) {
340			nl[0] = '\0';
341		}
342		if (!_mPerfRunCore(path, args, perfOpts)) {
343			break;
344		}
345		memset(path, 0, sizeof(path));
346	}
347	SocketClose(_socket);
348	SocketClose(_server);
349	SocketSubsystemDeinit();
350	return true;
351}
352
353static void _mPerfShutdown(int signal) {
354	UNUSED(signal);
355	_dispatchExiting = true;
356	SocketClose(_socket);
357	SocketClose(_server);
358}
359
360static bool _parsePerfOpts(struct mSubParser* parser, int option, const char* arg) {
361	struct PerfOpts* opts = parser->opts;
362	errno = 0;
363	switch (option) {
364	case 'D':
365		opts->server = true;
366		return true;
367	case 'F':
368		opts->frames = strtoul(arg, 0, 10);
369		return !errno;
370	case 'N':
371		opts->noVideo = true;
372		return true;
373	case 'P':
374		opts->csv = true;
375		return true;
376	case 'S':
377		opts->duration = strtoul(arg, 0, 10);
378		return !errno;
379	case 'T':
380		opts->threadedVideo = true;
381		return true;
382	case 'L':
383		opts->savestate = strdup(arg);
384		return true;
385	default:
386		return false;
387	}
388}
389
390static void _log(struct mLogger* log, int category, enum mLogLevel level, const char* format, va_list args) {
391	UNUSED(log);
392	UNUSED(category);
393	UNUSED(level);
394	UNUSED(format);
395	UNUSED(args);
396}