aboutsummaryrefslogtreecommitdiff
path: root/common/util.cpp
blob: a0399315d8c703ee030afaa8d6adc135e5ce23fd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 */

#include "common/util.h"
#include "common/system.h"
#include "common/config-manager.h"

#include <stdarg.h>	// For va_list etc.

#ifdef _WIN32_WCE
// This is required for the debugger attachment
extern bool isSmartphone();
#endif

#ifdef __PLAYSTATION2__
	// for those replaced fopen/fread/etc functions
	#include "backends/platform/ps2/fileio.h"

	#define fputs(str, file)	ps2_fputs(str, file)
#endif

#ifdef __DS__
	#include "backends/fs/ds/ds-fs.h"

	#define fputs(str, file)	DS::std_fwrite(str, strlen(str), 1, file)
#endif

namespace Common {

StringTokenizer::StringTokenizer(const String &str, const String &delimiters) : _str(str), _delimiters(delimiters) {
	reset();
}

void StringTokenizer::reset() {
	_tokenBegin = _tokenEnd = 0;
}

bool StringTokenizer::empty() const {
	// Search for the next token's start (i.e. the next non-delimiter character)
	for (uint i = _tokenEnd; i < _str.size(); i++) {
		if (!_delimiters.contains(_str[i]))
			return false; // Found a token so the tokenizer is not empty
	}
	// Didn't find any more tokens so the tokenizer is empty
	return true;
}

String StringTokenizer::nextToken() {
	// Seek to next token's start (i.e. jump over the delimiters before next token)
	for (_tokenBegin = _tokenEnd; _tokenBegin < _str.size() && _delimiters.contains(_str[_tokenBegin]); _tokenBegin++)
		;
	// Seek to the token's end (i.e. jump over the non-delimiters)
	for (_tokenEnd = _tokenBegin; _tokenEnd < _str.size() && !_delimiters.contains(_str[_tokenEnd]); _tokenEnd++)
		;
	// Return the found token
	return String(_str.c_str() + _tokenBegin, _tokenEnd - _tokenBegin);
}

//
// Print hexdump of the data passed in
//
void hexdump(const byte * data, int len, int bytesPerLine, int startOffset) {
	assert(1 <= bytesPerLine && bytesPerLine <= 32);
	int i;
	byte c;
	int offset = startOffset;
	while (len >= bytesPerLine) {
		printf("%06x: ", offset);
		for (i = 0; i < bytesPerLine; i++) {
			printf("%02x ", data[i]);
			if (i % 4 == 3)
				printf(" ");
		}
		printf(" |");
		for (i = 0; i < bytesPerLine; i++) {
			c = data[i];
			if (c < 32 || c >= 127)
				c = '.';
			printf("%c", c);
		}
		printf("|\n");
		data += bytesPerLine;
		len -= bytesPerLine;
		offset += bytesPerLine;
	}

	if (len <= 0)
		return;

	printf("%06x: ", offset);
	for (i = 0; i < bytesPerLine; i++) {
		if (i < len)
			printf("%02x ", data[i]);
		else
			printf("   ");
		if (i % 4 == 3)
			printf(" ");
	}
	printf(" |");
	for (i = 0; i < len; i++) {
		c = data[i];
		if (c < 32 || c >= 127)
			c = '.';
		printf("%c", c);
	}
	for (; i < bytesPerLine; i++)
		printf(" ");
	printf("|\n");
}

String tag2string(uint32 tag) {
	char str[5];
	str[0] = (char)(tag >> 24);
	str[1] = (char)(tag >> 16);
	str[2] = (char)(tag >> 8);
	str[3] = (char)tag;
	str[4] = '\0';
	// Replace non-printable chars by dot
	for (int i = 0; i < 4; ++i) {
		if (!isprint(str[i]))
			str[i] = '.';
	}
	return Common::String(str);
}


#pragma mark -


RandomSource::RandomSource() {
	// Use system time as RNG seed. Normally not a good idea, if you are using
	// a RNG for security purposes, but good enough for our purposes.
	assert(g_system);
	uint32 seed = g_system->getMillis();
	setSeed(seed);
}

void RandomSource::setSeed(uint32 seed) {
	_randSeed = seed;
}

uint RandomSource::getRandomNumber(uint max) {
	_randSeed = 0xDEADBF03 * (_randSeed + 1);
	_randSeed = (_randSeed >> 13) | (_randSeed << 19);
	return _randSeed % (max + 1);
}

uint RandomSource::getRandomBit() {
	_randSeed = 0xDEADBF03 * (_randSeed + 1);
	_randSeed = (_randSeed >> 13) | (_randSeed << 19);
	return _randSeed & 1;
}

uint RandomSource::getRandomNumberRng(uint min, uint max) {
	return getRandomNumber(max - min) + min;
}


#pragma mark -


const LanguageDescription g_languages[] = {
	{"zh-cn", "Chinese (China)", ZH_CNA},
	{"zh", "Chinese (Taiwan)", ZH_TWN},
	{"cz", "Czech", CZ_CZE},
	{"nl", "Dutch", NL_NLD},
	{"en", "English", EN_ANY}, // Generic English (when only one game version exist)
	{"gb", "English (GB)", EN_GRB},
	{"us", "English (US)", EN_USA},
	{"fr", "French", FR_FRA},
	{"de", "German", DE_DEU},
	{"gr", "Greek", GR_GRE},
	{"hb", "Hebrew", HB_ISR},
	{"it", "Italian", IT_ITA},
	{"jp", "Japanese", JA_JPN},
	{"kr", "Korean", KO_KOR},
	{"nb", "Norwegian Bokm\xE5l", NB_NOR},
	{"pl", "Polish", PL_POL},
	{"br", "Portuguese", PT_BRA},
	{"ru", "Russian", RU_RUS},
	{"es", "Spanish", ES_ESP},
	{"se", "Swedish", SE_SWE},
	{"hu", "Hungarian", HU_HUN},
	{0, 0, UNK_LANG}
};

Language parseLanguage(const String &str) {
	if (str.empty())
		return UNK_LANG;

	const LanguageDescription *l = g_languages;
	for (; l->code; ++l) {
		if (str.equalsIgnoreCase(l->code))
			return l->id;
	}

	return UNK_LANG;
}

const char *getLanguageCode(Language id) {
	const LanguageDescription *l = g_languages;
	for (; l->code; ++l) {
		if (l->id == id)
			return l->code;
	}
	return 0;
}

const char *getLanguageDescription(Language id) {
	const LanguageDescription *l = g_languages;
	for (; l->code; ++l) {
		if (l->id == id)
			return l->description;
	}
	return 0;
}


#pragma mark -


const PlatformDescription g_platforms[] = {
	{"2gs", "2gs", "2gs", "Apple IIgs", kPlatformApple2GS},
	{"3do", "3do", "3do", "3DO", kPlatform3DO},
	{"acorn", "acorn", "acorn", "Acorn", kPlatformAcorn},
	{"amiga", "ami", "amiga", "Amiga", kPlatformAmiga},
	{"atari", "atari-st", "st", "Atari ST", kPlatformAtariST},
	{"c64", "c64", "c64", "Commodore 64", kPlatformC64},
	{"pc", "dos", "ibm", "DOS", kPlatformPC},
	{"pc98", "pc98", "pc98", "PC-98", kPlatformPC98},
	{"wii", "wii", "wii", "Nintendo Wii", kPlatformWii},
	{"coco3", "coco3", "coco3", "CoCo3", kPlatformCoCo3},

	// The 'official' spelling seems to be "FM-TOWNS" (e.g. in the Indy4 demo).
	// However, on the net many variations can be seen, like "FMTOWNS",
	// "FM TOWNS", "FmTowns", etc.
	{"fmtowns", "towns", "fm", "FM-TOWNS", kPlatformFMTowns},

	{"linux", "linux", "linux", "Linux", kPlatformLinux},
	{"macintosh", "mac", "mac", "Macintosh", kPlatformMacintosh},
	{"pce", "pce", "pce", "PC-Engine", kPlatformPCEngine},
	{"nes", "nes", "nes", "NES", kPlatformNES},
	{"segacd", "segacd", "sega", "SegaCD", kPlatformSegaCD},
	{"windows", "win", "win", "Windows", kPlatformWindows},
	{"playstation", "psx", "psx", "Sony PlayStation", kPlatformPSX},
	{"cdi", "cdi", "cdi", "Phillips CD-i", kPlatformCDi},

	{0, 0, 0, "Default", kPlatformUnknown}
};

Platform parsePlatform(const String &str) {
	if (str.empty())
		return kPlatformUnknown;

	// Handle some special case separately, for compatibility with old config
	// files.
	if (str == "1")
		return kPlatformAmiga;
	else if (str == "2")
		return kPlatformAtariST;
	else if (str == "3")
		return kPlatformMacintosh;

	const PlatformDescription *l = g_platforms;
	for (; l->code; ++l) {
		if (str.equalsIgnoreCase(l->code) || str.equalsIgnoreCase(l->code2) || str.equalsIgnoreCase(l->abbrev))
			return l->id;
	}

	return kPlatformUnknown;
}


const char *getPlatformCode(Platform id) {
	const PlatformDescription *l = g_platforms;
	for (; l->code; ++l) {
		if (l->id == id)
			return l->code;
	}
	return 0;
}

const char *getPlatformAbbrev(Platform id) {
	const PlatformDescription *l = g_platforms;
	for (; l->code; ++l) {
		if (l->id == id)
			return l->abbrev;
	}
	return 0;
}

const char *getPlatformDescription(Platform id) {
	const PlatformDescription *l = g_platforms;
	for (; l->code; ++l) {
		if (l->id == id)
			return l->description;
	}
	return l->description;
}


#pragma mark -


const RenderModeDescription g_renderModes[] = {
	{"hercGreen", "Hercules Green", kRenderHercG},
	{"hercAmber", "Hercules Amber", kRenderHercA},
	{"cga", "CGA", kRenderCGA},
	{"ega", "EGA", kRenderEGA},
	{"amiga", "Amiga", kRenderAmiga},
	{0, 0, kRenderDefault}
};

RenderMode parseRenderMode(const String &str) {
	if (str.empty())
		return kRenderDefault;

	const RenderModeDescription *l = g_renderModes;
	for (; l->code; ++l) {
		if (str.equalsIgnoreCase(l->code))
			return l->id;
	}

	return kRenderDefault;
}

const char *getRenderModeCode(RenderMode id) {
	const RenderModeDescription *l = g_renderModes;
	for (; l->code; ++l) {
		if (l->id == id)
			return l->code;
	}
	return 0;
}

const char *getRenderModeDescription(RenderMode id) {
	const RenderModeDescription *l = g_renderModes;
	for (; l->code; ++l) {
		if (l->id == id)
			return l->description;
	}
	return 0;
}

const struct GameOpt {
	uint32 option;
	const char *desc;
} g_gameOptions[] = {
	{ GUIO_NOSUBTITLES, "sndNoSubs" },
	{ GUIO_NOMUSIC, "sndNoMusic" },
	{ GUIO_NOSPEECH, "sndNoSpeech" },
	{ GUIO_NOSFX, "sndNoSFX" },
	{ GUIO_NOMIDI, "sndNoMIDI" },
	{ GUIO_NOLAUNCHLOAD, "launchNoLoad" },
	{ GUIO_NONE, 0 }
};

bool checkGameGUIOption(GameGUIOption option, const String &str) {
	for (int i = 0; g_gameOptions[i].desc; i++) {
		if (g_gameOptions[i].option & option) {
			if (str.contains(g_gameOptions[i].desc))
				return true;
			else
				return false;
		}
	}
	return false;
}

uint32 parseGameGUIOptions(const String &str) {
	uint32 res = 0;

	for (int i = 0; g_gameOptions[i].desc; i++)
		if (str.contains(g_gameOptions[i].desc))
			res |= g_gameOptions[i].option;

	return res;
}

String getGameGUIOptionsDescription(uint32 options) {
	String res = "";

	for (int i = 0; g_gameOptions[i].desc; i++)
		if (options & g_gameOptions[i].option)
			res += String(g_gameOptions[i].desc) + " ";

	res.trim();

	return res;
}

void updateGameGUIOptions(const uint32 options) {
	if ((options && !ConfMan.hasKey("guioptions")) ||
	    (ConfMan.hasKey("guioptions") && options != parseGameGUIOptions(ConfMan.get("guioptions")))) {
		ConfMan.set("guioptions", getGameGUIOptionsDescription(options));
		ConfMan.flushToDisk();
	}
}

}	// End of namespace Common