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 "core/config.h"
  7#include "gba/core.h"
  8#include "gba/gba.h"
  9#include "gba/renderers/video-software.h"
 10#include "gba/serialize.h"
 11
 12#include "feature/commandline.h"
 13#include "util/socket.h"
 14#include "util/string.h"
 15#include "util/vfs.h"
 16
 17#ifdef _3DS
 18#include <3ds.h>
 19#endif
 20
 21#include <errno.h>
 22#include <fcntl.h>
 23#include <signal.h>
 24#include <inttypes.h>
 25#include <sys/time.h>
 26
 27#define PERF_OPTIONS "DF:L:NPS:"
 28#define PERF_USAGE \
 29	"\nBenchmark options:\n" \
 30	"  -F FRAMES        Run for the specified number of FRAMES before exiting\n" \
 31	"  -N               Disable video rendering entirely\n" \
 32	"  -P               CSV output, useful for parsing\n" \
 33	"  -S SEC           Run for SEC in-game seconds before exiting\n" \
 34	"  -L FILE          Load a savestate when starting the test\n" \
 35	"  -D               Act as a server"
 36
 37struct PerfOpts {
 38	bool noVideo;
 39	bool csv;
 40	unsigned duration;
 41	unsigned frames;
 42	char* savestate;
 43	bool server;
 44};
 45
 46#ifdef _3DS
 47extern bool allocateRomBuffer(void);
 48FS_Archive sdmcArchive;
 49#endif
 50
 51static void _mPerfRunloop(struct mCore* context, int* frames, bool quiet);
 52static void _mPerfShutdown(int signal);
 53static bool _parsePerfOpts(struct mSubParser* parser, int option, const char* arg);
 54static void _log(struct mLogger*, int, enum mLogLevel, const char*, va_list);
 55static bool _mPerfRunCore(const char* fname, const struct mArguments*, const struct PerfOpts*);
 56static bool _mPerfRunServer(const char* listen, const struct mArguments*, const struct PerfOpts*);
 57
 58static bool _dispatchExiting = false;
 59static struct VFile* _savestate = 0;
 60static void* _outputBuffer = NULL;
 61static Socket _socket = INVALID_SOCKET;
 62
 63int main(int argc, char** argv) {
 64#ifdef _3DS
 65	UNUSED(_mPerfShutdown);
 66    gfxInitDefault();
 67    osSetSpeedupEnable(true);
 68	consoleInit(GFX_BOTTOM, NULL);
 69	if (!allocateRomBuffer()) {
 70		return 1;
 71	}
 72	sdmcArchive = (FS_Archive) {
 73		ARCHIVE_SDMC,
 74		(FS_Path) { PATH_EMPTY, 1, "" },
 75		0
 76	};
 77	FSUSER_OpenArchive(&sdmcArchive);
 78#else
 79	signal(SIGINT, _mPerfShutdown);
 80#endif
 81	int didFail = 0;
 82
 83	struct mLogger logger = { .log = _log };
 84	mLogSetDefaultLogger(&logger);
 85
 86	struct PerfOpts perfOpts = { false, false, 0, 0, 0, false };
 87	struct mSubParser subparser = {
 88		.usage = PERF_USAGE,
 89		.parse = _parsePerfOpts,
 90		.extraOptions = PERF_OPTIONS,
 91		.opts = &perfOpts
 92	};
 93
 94	struct mArguments args = {};
 95	bool parsed = parseArguments(&args, argc, argv, &subparser);
 96	if (!parsed || args.showHelp) {
 97		usage(argv[0], PERF_USAGE);
 98		didFail = !parsed;
 99		goto cleanup;
100	}
101
102	if (args.showVersion) {
103		version(argv[0]);
104		goto cleanup;
105	}
106
107	if (perfOpts.savestate) {
108		_savestate = VFileOpen(perfOpts.savestate, O_RDONLY);
109		free(perfOpts.savestate);
110	}
111
112	_outputBuffer = malloc(256 * 256 * 4);
113	if (perfOpts.csv) {
114		puts("game_code,frames,duration,renderer");
115	}
116	if (perfOpts.server) {
117		didFail = !_mPerfRunServer(args.fname, &args, &perfOpts);
118	} else {
119		didFail = !_mPerfRunCore(args.fname, &args, &perfOpts);
120	}
121	free(_outputBuffer);
122
123	if (_savestate) {
124		_savestate->close(_savestate);
125	}
126	cleanup:
127	freeArguments(&args);
128
129#ifdef _3DS
130	gfxExit();
131	acExit();
132#endif
133
134	return didFail;
135}
136
137bool _mPerfRunCore(const char* fname, const struct mArguments* args, const struct PerfOpts* perfOpts) {
138	struct mCore* core = mCoreFind(fname);
139	if (!core) {
140		return false;
141	}
142
143	// TODO: Put back debugger
144	char gameCode[9] = { 0 };
145
146	core->init(core);
147	if (!perfOpts->noVideo) {
148		core->setVideoBuffer(core, _outputBuffer, 256);
149	}
150	mCoreLoadFile(core, fname);
151	mCoreConfigInit(&core->config, "perf");
152	mCoreConfigLoad(&core->config);
153
154	struct mCoreOptions opts = {};
155	mCoreConfigMap(&core->config, &opts);
156	opts.audioSync = false;
157	opts.videoSync = false;
158	applyArguments(args, NULL, &core->config);
159	mCoreConfigLoadDefaults(&core->config, &opts);
160	mCoreConfigSetDefaultValue(&core->config, "idleOptimization", "detect");
161	mCoreLoadConfig(core);
162
163	core->reset(core);
164	if (_savestate) {
165		mCoreLoadStateNamed(core, _savestate, 0);
166	}
167
168	core->getGameCode(core, gameCode);
169
170	int frames = perfOpts->frames;
171	if (!frames) {
172		frames = perfOpts->duration * 60;
173	}
174	struct timeval tv;
175	gettimeofday(&tv, 0);
176	uint64_t start = 1000000LL * tv.tv_sec + tv.tv_usec;
177	_mPerfRunloop(core, &frames, perfOpts->csv);
178	gettimeofday(&tv, 0);
179	uint64_t end = 1000000LL * tv.tv_sec + tv.tv_usec;
180	uint64_t duration = end - start;
181
182	core->deinit(core);
183
184	float scaledFrames = frames * 1000000.f;
185	if (perfOpts->csv) {
186		char buffer[256];
187		const char* rendererName;
188		if (perfOpts->noVideo) {
189			rendererName = "none";
190		} else {
191			rendererName = "software";
192		}
193		snprintf(buffer, sizeof(buffer), "%s,%i,%" PRIu64 ",%s\n", gameCode, frames, duration, rendererName);
194		printf("%s", buffer);
195		if (_socket != INVALID_SOCKET) {
196			SocketSend(_socket, buffer, strlen(buffer));
197		}
198	} else {
199		printf("%u frames in %" PRIu64 " microseconds: %g fps (%gx)\n", frames, duration, scaledFrames / duration, scaledFrames / (duration * 60.f));
200	}
201
202	mCoreConfigFreeOpts(&opts);
203	mCoreConfigDeinit(&core->config);
204	return true;
205}
206
207static void _mPerfRunloop(struct mCore* core, int* frames, bool quiet) {
208	struct timeval lastEcho;
209	gettimeofday(&lastEcho, 0);
210	int duration = *frames;
211	*frames = 0;
212	int lastFrames = 0;
213	while (!_dispatchExiting) {
214		core->runFrame(core);
215		++*frames;
216		++lastFrames;
217		if (!quiet) {
218			struct timeval currentTime;
219			long timeDiff;
220			gettimeofday(&currentTime, 0);
221			timeDiff = currentTime.tv_sec - lastEcho.tv_sec;
222			timeDiff *= 1000;
223			timeDiff += (currentTime.tv_usec - lastEcho.tv_usec) / 1000;
224			if (timeDiff >= 1000) {
225				printf("\033[2K\rCurrent FPS: %g (%gx)", lastFrames / (timeDiff / 1000.0f), lastFrames / (float) (60 * (timeDiff / 1000.0f)));
226				fflush(stdout);
227				lastEcho = currentTime;
228				lastFrames = 0;
229			}
230		}
231		if (duration > 0 && *frames == duration) {
232			break;
233		}
234	}
235	if (!quiet) {
236		printf("\033[2K\r");
237	}
238}
239
240static bool _mPerfRunServer(const char* listen, const struct mArguments* args, const struct PerfOpts* perfOpts) {
241	SocketSubsystemInit();
242	Socket server = SocketOpenTCP(7216, NULL);
243	if (SOCKET_FAILED(server)) {
244		SocketSubsystemDeinit();
245		return false;
246	}
247	if (SOCKET_FAILED(SocketListen(server, 0))) {
248		SocketClose(server);
249		SocketSubsystemDeinit();
250		return false;
251	}
252	_socket = SocketAccept(server, NULL);
253	if (perfOpts->csv) {
254		const char* header = "game_code,frames,duration,renderer\n";
255		SocketSend(_socket, header, strlen(header));
256	}
257	char path[PATH_MAX];
258	while (SocketRecv(_socket, path, sizeof(path)) > 0) {
259		char* nl = strchr(path, '\n');
260		if (nl == path) {
261			break;
262		}
263		if (nl) {
264			nl[0] = '\0';
265		}
266		if (!_mPerfRunCore(path, args, perfOpts)) {
267			break;
268		}
269	}
270	SocketClose(_socket);
271	SocketClose(server);
272	SocketSubsystemDeinit();
273	return true;
274}
275
276static void _mPerfShutdown(int signal) {
277	UNUSED(signal);
278	_dispatchExiting = true;
279	SocketClose(_socket);
280}
281
282static bool _parsePerfOpts(struct mSubParser* parser, int option, const char* arg) {
283	struct PerfOpts* opts = parser->opts;
284	errno = 0;
285	switch (option) {
286	case 'D':
287		opts->server = true;
288		return true;
289	case 'F':
290		opts->frames = strtoul(arg, 0, 10);
291		return !errno;
292	case 'N':
293		opts->noVideo = true;
294		return true;
295	case 'P':
296		opts->csv = true;
297		return true;
298	case 'S':
299		opts->duration = strtoul(arg, 0, 10);
300		return !errno;
301	case 'L':
302		opts->savestate = strdup(arg);
303		return true;
304	default:
305		return false;
306	}
307}
308
309static void _log(struct mLogger* log, int category, enum mLogLevel level, const char* format, va_list args) {
310	UNUSED(log);
311	UNUSED(category);
312	UNUSED(level);
313	UNUSED(format);
314	UNUSED(args);
315}