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reverted useless threaded buffering code
[picodrive.git] / platform / common / config.c
CommitLineData
835e7900 1/*
2 * Human-readable config file management for PicoDrive
3 * (c)
4 */
5
6#include <string.h>
7#include <stdlib.h>
8#include "config.h"
9#include "menu.h"
10#include "emu.h"
c46ffd31 11#include "lprintf.h"
835e7900 12#include <Pico/Pico.h>
13
14extern menu_entry opt_entries[];
15extern menu_entry opt2_entries[];
16extern menu_entry cdopt_entries[];
17extern const int opt_entry_count;
18extern const int opt2_entry_count;
19extern const int cdopt_entry_count;
20
21static menu_entry *cfg_opts[] = { opt_entries, opt2_entries, cdopt_entries };
22static const int *cfg_opt_counts[] = { &opt_entry_count, &opt2_entry_count, &cdopt_entry_count };
23
7b802576 24#define NL "\r\n"
835e7900 25
26
bdec53c9 27static char *mystrip(char *str)
1ca2ea4f 28{
29 int i, len;
30
31 len = strlen(str);
32 for (i = 0; i < len; i++)
33 if (str[i] != ' ') break;
34 if (i > 0) memmove(str, str + i, len - i + 1);
bdec53c9 35
1ca2ea4f 36 len = strlen(str);
37 for (i = len - 1; i >= 0; i--)
38 if (str[i] != ' ') break;
39 str[i+1] = 0;
bdec53c9 40
41 return str;
1ca2ea4f 42}
43
44
835e7900 45static int seek_sect(FILE *f, const char *section)
46{
47 char line[128], *tmp;
48 int len;
49
50 len = strlen(section);
51 // seek to the section needed
52 while (!feof(f))
53 {
54 tmp = fgets(line, sizeof(line), f);
55 if (tmp == NULL) break;
56
57 if (line[0] != '[') continue; // not section start
58 if (strncmp(line + 1, section, len) == 0 && line[len+1] == ']')
59 return 1; // found it
60 }
61
62 return 0;
63}
64
65
c46ffd31 66static void custom_write(FILE *f, const menu_entry *me, int no_def)
835e7900 67{
68 char *str, str24[24];
69
70 switch (me->id)
71 {
72 case MA_OPT_RENDERER:
c46ffd31 73 if (no_def && !((defaultConfig.s_PicoOpt^PicoOpt)&0x10) &&
835e7900 74 !((defaultConfig.EmuOpt^currentConfig.EmuOpt)&0x80)) return;
75 if (PicoOpt&0x10)
76 str = "8bit fast";
77 else if (currentConfig.EmuOpt&0x80)
78 str = "16bit accurate";
79 else
80 str = "8bit accurate";
81 fprintf(f, "Renderer = %s", str);
82 break;
83
84 case MA_OPT_SCALING:
c46ffd31 85 if (no_def && defaultConfig.scaling == currentConfig.scaling) return;
835e7900 86 switch (currentConfig.scaling) {
87 default: str = "OFF"; break;
88 case 1: str = "hw horizontal"; break;
89 case 2: str = "hw horiz. + vert."; break;
90 case 3: str = "sw horizontal"; break;
91 }
92 fprintf(f, "Scaling = %s", str);
93 break;
94 case MA_OPT_FRAMESKIP:
c46ffd31 95 if (no_def && defaultConfig.Frameskip == currentConfig.Frameskip) return;
835e7900 96 if (currentConfig.Frameskip < 0)
97 strcpy(str24, "Auto");
98 else sprintf(str24, "%i", currentConfig.Frameskip);
99 fprintf(f, "Frameskip = %s", str24);
100 break;
101 case MA_OPT_SOUND_QUALITY:
c46ffd31 102 if (no_def && !((defaultConfig.s_PicoOpt^PicoOpt)&8) &&
835e7900 103 defaultConfig.s_PsndRate == PsndRate) return;
104 str = (PicoOpt&0x08)?"stereo":"mono";
105 fprintf(f, "Sound Quality = %i %s", PsndRate, str);
106 break;
107 case MA_OPT_REGION:
c46ffd31 108 if (no_def && defaultConfig.s_PicoRegion == PicoRegionOverride &&
835e7900 109 defaultConfig.s_PicoAutoRgnOrder == PicoAutoRgnOrder) return;
110 fprintf(f, "Region = %s", me_region_name(PicoRegionOverride, PicoAutoRgnOrder));
111 break;
112 case MA_OPT_CONFIRM_STATES:
c46ffd31 113 if (no_def && !((defaultConfig.EmuOpt^currentConfig.EmuOpt)&(5<<9))) return;
835e7900 114 switch ((currentConfig.EmuOpt >> 9) & 5) {
115 default: str = "OFF"; break;
116 case 1: str = "writes"; break;
117 case 4: str = "loads"; break;
118 case 5: str = "both"; break;
119 }
120 fprintf(f, "Confirm savestate = %s", str);
121 break;
122 case MA_OPT_CPU_CLOCKS:
c46ffd31 123 if (no_def && defaultConfig.CPUclock == currentConfig.CPUclock) return;
835e7900 124 fprintf(f, "GP2X CPU clocks = %i", currentConfig.CPUclock);
125 break;
126 case MA_OPT2_GAMMA:
c46ffd31 127 if (no_def && defaultConfig.gamma == currentConfig.gamma) return;
835e7900 128 fprintf(f, "Gamma correction = %.3f", (double)currentConfig.gamma / 100.0);
129 break;
130 case MA_OPT2_SQUIDGEHACK:
c46ffd31 131 if (no_def && !((defaultConfig.EmuOpt^currentConfig.EmuOpt)&0x0010)) return;
835e7900 132 fprintf(f, "Squidgehack = %i", (currentConfig.EmuOpt&0x0010)>>4);
133 break;
134 case MA_CDOPT_READAHEAD:
c46ffd31 135 if (no_def && defaultConfig.s_PicoCDBuffers == PicoCDBuffers) return;
835e7900 136 sprintf(str24, "%i", PicoCDBuffers * 2);
137 fprintf(f, "ReadAhead buffer = %s", str24);
138 break;
139
140 default:
c46ffd31 141 lprintf("unhandled custom_write: %i\n", me->id);
835e7900 142 return;
143 }
144 fprintf(f, NL);
145}
146
1ca2ea4f 147
148static const char *joyKeyNames[32] =
149{
150 "UP", "DOWN", "LEFT", "RIGHT", "b1", "b2", "b3", "b4",
151 "b5", "b6", "b7", "b8", "b9", "b10", "b11", "b12",
152 "b13", "b14", "b15", "b16", "b17", "b19", "b19", "b20",
153 "b21", "b22", "b23", "b24", "b25", "b26", "b27", "b28"
154};
155
156static void keys_write(FILE *fn, const char *bind_str, const int binds[32],
157 const int def_binds[32], const char *names[32], int no_defaults)
158{
159 int t, i;
160 char act[48];
161
162 for (t = 0; t < 32; t++)
163 {
164 act[0] = act[31] = 0;
165 if (no_defaults && binds[t] == def_binds[t])
166 continue;
167 if (strcmp(names[t], "???") == 0) continue;
168#ifdef __GP2X__
169 if (strcmp(names[t], "SELECT") == 0) continue;
170#endif
171 for (i = 0; i < sizeof(me_ctrl_actions) / sizeof(me_ctrl_actions[0]); i++) {
172 if (me_ctrl_actions[i].mask & binds[t]) {
bdec53c9 173 strncpy(act, me_ctrl_actions[i].name, 31);
174 fprintf(fn, "%s %s = player%i %s" NL, bind_str, names[t],
175 ((binds[t]>>16)&1)+1, mystrip(act));
1ca2ea4f 176 }
177 }
1ca2ea4f 178
bdec53c9 179 for (i = 0; emuctrl_actions[i].name != NULL; i++) {
180 if (emuctrl_actions[i].mask & binds[t]) {
181 strncpy(act, emuctrl_actions[i].name, 31);
182 fprintf(fn, "%s %s = %s" NL, bind_str, names[t], mystrip(act));
183 }
184 }
1ca2ea4f 185 }
186}
187
188
c46ffd31 189static int default_var(const menu_entry *me)
190{
191 switch (me->id)
192 {
193 case MA_OPT_ACC_TIMING:
194 case MA_OPT_ACC_SPRITES:
195 case MA_OPT_ARM940_SOUND:
196 case MA_OPT_6BUTTON_PAD:
197 case MA_OPT2_ENABLE_Z80:
198 case MA_OPT2_ENABLE_YM2612:
199 case MA_OPT2_ENABLE_SN76496:
1ca2ea4f 200 case MA_OPT2_SVP_DYNAREC:
c46ffd31 201 case MA_CDOPT_CDDA:
202 case MA_CDOPT_PCM:
203 case MA_CDOPT_SAVERAM:
204 case MA_CDOPT_SCALEROT_CHIP:
205 case MA_CDOPT_BETTER_SYNC:
206 return defaultConfig.s_PicoOpt;
207
208 case MA_OPT_SHOW_FPS:
209 case MA_OPT_ENABLE_SOUND:
210 case MA_OPT_SRAM_STATES:
211 case MA_OPT2_A_SN_GAMMA:
212 case MA_OPT2_VSYNC:
213 case MA_OPT2_GZIP_STATES:
214 case MA_OPT2_NO_LAST_ROM:
215 case MA_OPT2_RAMTIMINGS:
216 case MA_CDOPT_LEDS:
217 return defaultConfig.EmuOpt;
218
219 case MA_OPT_SAVE_SLOT:
220 default:
221 return 0;
222 }
223}
835e7900 224
225int config_writesect(const char *fname, const char *section)
226{
227 FILE *fo = NULL, *fn = NULL; // old and new
c46ffd31 228 int no_defaults = 0; // avoid saving defaults
835e7900 229 menu_entry *me;
230 int t, i, tlen, ret;
231 char line[128], *tmp;
232
233 if (section != NULL)
234 {
c46ffd31 235 no_defaults = 1;
236
835e7900 237 fo = fopen(fname, "r");
238 if (fo == NULL) {
239 fn = fopen(fname, "w");
240 goto write;
241 }
242
243 ret = seek_sect(fo, section);
244 if (!ret) {
245 // sect not found, we can simply append
246 fclose(fo); fo = NULL;
247 fn = fopen(fname, "a");
248 goto write;
249 }
250
251 // use 2 files..
252 fclose(fo);
253 rename(fname, "tmp.cfg");
254 fo = fopen("tmp.cfg", "r");
255 fn = fopen(fname, "w");
256 if (fo == NULL || fn == NULL) goto write;
257
258 // copy everything until sect
259 tlen = strlen(section);
260 while (!feof(fo))
261 {
262 tmp = fgets(line, sizeof(line), fo);
263 if (tmp == NULL) break;
264
265 if (line[0] == '[' && strncmp(line + 1, section, tlen) == 0 && line[tlen+1] == ']')
266 break;
267 fputs(line, fn);
268 }
269
270 // now skip to next sect
271 while (!feof(fo))
272 {
273 tmp = fgets(line, sizeof(line), fo);
274 if (tmp == NULL) break;
275 if (line[0] == '[') {
276 fseek(fo, -strlen(line), SEEK_CUR);
277 break;
278 }
279 }
280 if (feof(fo))
281 {
282 fclose(fo); fo = NULL;
283 remove("tmp.cfg");
284 }
285 }
286 else
287 {
288 fn = fopen(fname, "w");
289 }
290
291write:
292 if (fn == NULL) {
293 if (fo) fclose(fo);
294 return -1;
295 }
296 if (section != NULL)
297 fprintf(fn, "[%s]" NL, section);
298
299 for (t = 0; t < sizeof(cfg_opts) / sizeof(cfg_opts[0]); t++)
300 {
301 me = cfg_opts[t];
302 tlen = *(cfg_opt_counts[t]);
303 for (i = 0; i < tlen; i++, me++)
304 {
305 if (!me->need_to_save) continue;
306 if ((me->beh != MB_ONOFF && me->beh != MB_RANGE) || me->name == NULL)
c46ffd31 307 custom_write(fn, me, no_defaults);
308 else if (me->beh == MB_ONOFF) {
309 if (!no_defaults || ((*(int *)me->var ^ default_var(me)) & me->mask))
310 fprintf(fn, "%s = %i" NL, me->name, (*(int *)me->var & me->mask) ? 1 : 0);
311 } else if (me->beh == MB_RANGE) {
312 if (!no_defaults || ((*(int *)me->var ^ default_var(me)) & me->mask))
313 fprintf(fn, "%s = %i" NL, me->name, *(int *)me->var);
314 }
835e7900 315 }
316 }
1ca2ea4f 317
318 // save key config
319 keys_write(fn, "bind", currentConfig.KeyBinds, defaultConfig.KeyBinds, keyNames, no_defaults);
320 keys_write(fn, "bind_joy0", currentConfig.JoyBinds[0], defaultConfig.JoyBinds[0], joyKeyNames, 1);
321 keys_write(fn, "bind_joy1", currentConfig.JoyBinds[1], defaultConfig.JoyBinds[1], joyKeyNames, 1);
322 keys_write(fn, "bind_joy2", currentConfig.JoyBinds[2], defaultConfig.JoyBinds[2], joyKeyNames, 1);
323 keys_write(fn, "bind_joy3", currentConfig.JoyBinds[3], defaultConfig.JoyBinds[3], joyKeyNames, 1);
324
7b802576 325 if (section == NULL)
326 fprintf(fn, "Sound Volume = %i" NL, currentConfig.volume);
327
835e7900 328 fprintf(fn, NL);
329
330 if (fo != NULL)
331 {
332 // copy whatever is left
333 while (!feof(fo))
334 {
335 tmp = fgets(line, sizeof(line), fo);
336 if (tmp == NULL) break;
337
338 fputs(line, fn);
339 }
340 fclose(fo);
341 remove("tmp.cfg");
342 }
343
344 fclose(fn);
345 return 0;
346}
347
348
835e7900 349int config_writelrom(const char *fname)
350{
351 char line[128], *tmp, *optr = NULL;
352 char *old_data = NULL;
353 int size;
354 FILE *f;
355
1ca2ea4f 356 if (strlen(lastRomFile) == 0) return 0;
835e7900 357
358 f = fopen(fname, "r");
359 if (f != NULL)
360 {
361 fseek(f, 0, SEEK_END);
362 size = ftell(f);
363 fseek(f, 0, SEEK_SET);
364 old_data = malloc(size + size/8);
365 if (old_data != NULL)
366 {
367 optr = old_data;
368 while (!feof(f))
369 {
370 tmp = fgets(line, sizeof(line), f);
371 if (tmp == NULL) break;
372 mystrip(line);
373 if (strncasecmp(line, "LastUsedROM", 11) == 0)
374 continue;
375 sprintf(optr, "%s", line);
376 optr += strlen(optr);
377 }
378 }
379 fclose(f);
380 }
381
382 f = fopen(fname, "w");
383 if (f == NULL) return -1;
384
385 if (old_data != NULL) {
386 fwrite(old_data, 1, optr - old_data, f);
387 free(old_data);
388 }
1ca2ea4f 389 fprintf(f, "LastUsedROM = %s" NL, lastRomFile);
835e7900 390 fclose(f);
391 return 0;
392}
393
1ca2ea4f 394/* --------------------------------------------------------------------------*/
395
396int config_readlrom(const char *fname)
397{
398 char line[128], *tmp;
399 int i, len, ret = -1;
400 FILE *f;
401
402 f = fopen(fname, "r");
403 if (f == NULL) return -1;
404
405 // seek to the section needed
406 while (!feof(f))
407 {
408 tmp = fgets(line, sizeof(line), f);
409 if (tmp == NULL) break;
410
411 if (strncasecmp(line, "LastUsedROM", 11) != 0) continue;
412 len = strlen(line);
413 for (i = 0; i < len; i++)
414 if (line[i] == '#' || line[i] == '\r' || line[i] == '\n') { line[i] = 0; break; }
415 tmp = strchr(line, '=');
416 if (tmp == NULL) break;
417 tmp++;
418 mystrip(tmp);
419
420 len = sizeof(lastRomFile);
421 strncpy(lastRomFile, tmp, len);
422 lastRomFile[len-1] = 0;
423 ret = 0;
424 break;
425 }
426 fclose(f);
427 return ret;
428}
429
835e7900 430
431static int custom_read(menu_entry *me, const char *var, const char *val)
432{
433 char *tmp;
434 int tmpi;
435
436 switch (me->id)
437 {
438 case MA_OPT_RENDERER:
439 if (strcasecmp(var, "Renderer") != 0) return 0;
440 if (strcasecmp(val, "8bit fast") == 0) {
441 PicoOpt |= 0x10;
442 }
443 else if (strcasecmp(val, "16bit accurate") == 0) {
444 PicoOpt &= ~0x10;
445 currentConfig.EmuOpt |= 0x80;
446 }
447 else if (strcasecmp(val, "8bit accurate") == 0) {
448 PicoOpt &= ~0x10;
449 currentConfig.EmuOpt &= ~0x80;
450 }
451 else
452 return 0;
453 return 1;
454
455 case MA_OPT_SCALING:
456 if (strcasecmp(var, "Scaling") != 0) return 0;
457 if (strcasecmp(val, "OFF") == 0) {
458 currentConfig.scaling = 0;
459 } else if (strcasecmp(val, "hw horizontal") == 0) {
460 currentConfig.scaling = 1;
461 } else if (strcasecmp(val, "hw horiz. + vert.") == 0) {
462 currentConfig.scaling = 2;
463 } else if (strcasecmp(val, "sw horizontal") == 0) {
464 currentConfig.scaling = 3;
465 } else
466 return 0;
467 return 1;
468
469 case MA_OPT_FRAMESKIP:
470 if (strcasecmp(var, "Frameskip") != 0) return 0;
471 if (strcasecmp(val, "Auto") == 0)
472 currentConfig.Frameskip = -1;
473 else currentConfig.Frameskip = atoi(val);
474 return 1;
475
476 case MA_OPT_SOUND_QUALITY:
477 if (strcasecmp(var, "Sound Quality") != 0) return 0;
478 PsndRate = strtoul(val, &tmp, 10);
479 if (PsndRate < 8000 || PsndRate > 44100)
480 PsndRate = 22050;
481 while (*tmp == ' ') tmp++;
482 if (strcasecmp(tmp, "stereo") == 0) {
483 PicoOpt |= 8;
484 } else if (strcasecmp(tmp, "mono") == 0) {
485 PicoOpt &= ~8;
486 } else
487 return 0;
488 return 1;
489
490 case MA_OPT_REGION:
491 if (strcasecmp(var, "Region") != 0) return 0;
492 if (strncasecmp(val, "Auto: ", 6) == 0)
493 {
494 const char *p = val + 5, *end = val + strlen(val);
495 int i;
496 PicoRegionOverride = PicoAutoRgnOrder = 0;
c46ffd31 497 for (i = 0; p < end && i < 3; i++)
498 {
499 while (*p == ' ') p++;
835e7900 500 if (p[0] == 'J' && p[1] == 'P') {
501 PicoAutoRgnOrder |= 1 << (i*4);
502 } else if (p[0] == 'U' && p[1] == 'S') {
503 PicoAutoRgnOrder |= 4 << (i*4);
504 } else if (p[0] == 'E' && p[1] == 'U') {
505 PicoAutoRgnOrder |= 8 << (i*4);
506 }
c46ffd31 507 while (*p != ' ' && *p != 0) p++;
508 if (*p == 0) break;
835e7900 509 }
510 }
511 else if (strcasecmp(val, "Auto") == 0) {
512 PicoRegionOverride = 0;
513 } else if (strcasecmp(val, "Japan NTSC") == 0) {
514 PicoRegionOverride = 1;
515 } else if (strcasecmp(val, "Japan PAL") == 0) {
516 PicoRegionOverride = 2;
517 } else if (strcasecmp(val, "USA") == 0) {
518 PicoRegionOverride = 4;
519 } else if (strcasecmp(val, "Europe") == 0) {
520 PicoRegionOverride = 8;
521 } else
522 return 0;
523 return 1;
524
525 case MA_OPT_CONFIRM_STATES:
526 if (strcasecmp(var, "Confirm savestate") != 0) return 0;
527 if (strcasecmp(val, "OFF") == 0) {
1ca2ea4f 528 currentConfig.EmuOpt &= ~(5<<9);
835e7900 529 } else if (strcasecmp(val, "writes") == 0) {
1ca2ea4f 530 currentConfig.EmuOpt &= ~(5<<9);
531 currentConfig.EmuOpt |= 1<<9;
835e7900 532 } else if (strcasecmp(val, "loads") == 0) {
1ca2ea4f 533 currentConfig.EmuOpt &= ~(5<<9);
534 currentConfig.EmuOpt |= 4<<9;
835e7900 535 } else if (strcasecmp(val, "both") == 0) {
1ca2ea4f 536 currentConfig.EmuOpt &= ~(5<<9);
537 currentConfig.EmuOpt |= 5<<9;
835e7900 538 } else
539 return 0;
540 return 1;
541
542 case MA_OPT_CPU_CLOCKS:
543 if (strcasecmp(var, "GP2X CPU clocks") != 0) return 0;
544 currentConfig.CPUclock = atoi(val);
545 return 1;
546
547 case MA_OPT2_GAMMA:
548 if (strcasecmp(var, "Gamma correction") != 0) return 0;
549 currentConfig.gamma = (int) (atof(val) * 100.0);
550 return 1;
551
552 case MA_OPT2_SQUIDGEHACK:
553 if (strcasecmp(var, "Squidgehack") != 0) return 0;
554 tmpi = atoi(val);
555 if (tmpi) *(int *)me->var |= me->mask;
556 else *(int *)me->var &= ~me->mask;
557 return 1;
558
559 case MA_CDOPT_READAHEAD:
560 if (strcasecmp(var, "ReadAhead buffer") != 0) return 0;
561 PicoCDBuffers = atoi(val) / 2;
562 return 1;
563
564 default:
c46ffd31 565 lprintf("unhandled custom_read: %i\n", me->id);
835e7900 566 return 0;
567 }
568}
569
570
bdec53c9 571static unsigned int keys_encountered = 0;
572
1ca2ea4f 573static void keys_parse(const char *var, const char *val, int binds[32], const char *names[32])
574{
bdec53c9 575 int t, i;
1ca2ea4f 576 unsigned int player;
577
578 for (t = 0; t < 32; t++)
579 {
580 if (strcmp(names[t], var) == 0) break;
581 }
582 if (t == 32) {
583 lprintf("unhandled bind \"%s\"\n", var);
584 return;
585 }
586
bdec53c9 587 if (binds == currentConfig.KeyBinds && !(keys_encountered & (1<<t))) { // hack
1ca2ea4f 588 binds[t] = 0;
589 keys_encountered |= 1<<t;
590 }
591 if (val[0] == 0)
592 return;
593 if (strncasecmp(val, "player", 6) == 0)
594 {
595 player = atoi(val + 6) - 1;
596 if (player > 1) goto fail;
597 for (i = 0; i < sizeof(me_ctrl_actions) / sizeof(me_ctrl_actions[0]); i++) {
598 if (strncasecmp(me_ctrl_actions[i].name, val + 8, strlen(val + 8)) == 0) {
599 binds[t] |= me_ctrl_actions[i].mask | (player<<16);
600 return;
601 }
602 }
603 }
604 for (i = 0; emuctrl_actions[i].name != NULL; i++) {
605 if (strncasecmp(emuctrl_actions[i].name, val, strlen(val)) == 0) {
606 binds[t] |= emuctrl_actions[i].mask;
607 return;
608 }
609 }
610
611fail:
612 lprintf("unhandled action \"%s\"\n", val);
613 return;
1ca2ea4f 614}
615
616
617#define try_joy_parse(num) { \
618 if (strncasecmp(var, "bind_joy"#num " ", 10) == 0) { \
619 keys_parse(var + 10, val, currentConfig.JoyBinds[num], joyKeyNames); \
620 return; \
621 } \
622}
623
835e7900 624static void parse(const char *var, const char *val)
625{
626 menu_entry *me;
627 int t, i, tlen, tmp, ret = 0;
628
1ca2ea4f 629 if (strcasecmp(var, "LastUsedROM") == 0)
630 return; /* handled elsewhere */
631
7b802576 632 if (strcasecmp(var, "Sound Volume") == 0) {
633 currentConfig.volume = atoi(val);
634 return;
635 }
636
1ca2ea4f 637 // key binds
638 if (strncasecmp(var, "bind ", 5) == 0) {
639 keys_parse(var + 5, val, currentConfig.KeyBinds, keyNames);
640 return;
641 }
642 try_joy_parse(0)
643 try_joy_parse(1)
644 try_joy_parse(2)
645 try_joy_parse(3)
646
835e7900 647 for (t = 0; t < sizeof(cfg_opts) / sizeof(cfg_opts[0]) && ret == 0; t++)
648 {
649 me = cfg_opts[t];
650 tlen = *(cfg_opt_counts[t]);
651 for (i = 0; i < tlen && ret == 0; i++, me++)
652 {
653 if (!me->need_to_save) continue;
654 if (me->name != NULL) {
655 if (strcasecmp(var, me->name) != 0) continue; // surely not this one
656 if (me->beh == MB_ONOFF) {
657 tmp = atoi(val);
658 if (tmp) *(int *)me->var |= me->mask;
659 else *(int *)me->var &= ~me->mask;
660 return;
661 } else if (me->beh == MB_RANGE) {
662 tmp = atoi(val);
663 if (tmp < me->min) tmp = me->min;
664 if (tmp > me->max) tmp = me->max;
665 *(int *)me->var = tmp;
666 return;
667 }
668 }
669 ret = custom_read(me, var, val);
670 }
671 }
c46ffd31 672 if (!ret) lprintf("config_readsect: unhandled var: %s\n", var);
835e7900 673}
674
675
1ca2ea4f 676int config_havesect(const char *fname, const char *section)
677{
678 FILE *f;
679 int ret;
680
681 f = fopen(fname, "r");
682 if (f == NULL) return 0;
683
684 ret = seek_sect(f, section);
685 fclose(f);
686 return ret;
687}
688
689
835e7900 690int config_readsect(const char *fname, const char *section)
691{
692 char line[128], *var, *val, *tmp;
835e7900 693 int len, i, ret;
1ca2ea4f 694 FILE *f;
835e7900 695
1ca2ea4f 696 f = fopen(fname, "r");
835e7900 697 if (f == NULL) return 0;
698
699 if (section != NULL)
700 {
701 ret = seek_sect(f, section);
702 if (!ret) {
c46ffd31 703 lprintf("config_readsect: %s: missing section [%s]\n", fname, section);
835e7900 704 fclose(f);
705 return -1;
706 }
707 }
708
bdec53c9 709 keys_encountered = 0;
710
835e7900 711 while (!feof(f))
712 {
713 tmp = fgets(line, sizeof(line), f);
714 if (tmp == NULL) break;
715
716 if (line[0] == '[') break; // other section
717
718 // strip comments, linefeed, spaces..
719 len = strlen(line);
720 for (i = 0; i < len; i++)
721 if (line[i] == '#' || line[i] == '\r' || line[i] == '\n') { line[i] = 0; break; }
722 mystrip(line);
723 len = strlen(line);
724 if (len <= 0) continue;
725
726 // get var and val
727 for (i = 0; i < len; i++)
728 if (line[i] == '=') break;
729 if (i >= len || strchr(&line[i+1], '=') != NULL) {
c46ffd31 730 lprintf("config_readsect: can't parse: %s\n", line);
835e7900 731 continue;
732 }
733 line[i] = 0;
734 var = line;
735 val = &line[i+1];
736 mystrip(var);
737 mystrip(val);
1ca2ea4f 738 if (strlen(var) == 0 || (strlen(val) == 0 && strncasecmp(var, "bind", 4) != 0)) {
c46ffd31 739 lprintf("config_readsect: something's empty: \"%s\" = \"%s\"\n", var, val);
835e7900 740 continue;
741 }
742
743 parse(var, val);
744 }
745
746 fclose(f);
747 return 0;
748}
749
fast MegaDrive/MegaCD/32X emulator