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