2 * Human-readable config file management for PicoDrive
5 * This work is licensed under the terms of MAME license.
6 * See COPYING file in the top-level directory.
16 #include "../libpicofe/input.h"
17 #include "../libpicofe/plat.h"
18 #include "../libpicofe/lprintf.h"
19 #include "config_file.h"
21 static char *mystrip(char *str);
25 #include "menu_pico.h"
27 #include <pico/pico.h>
29 // always output DOS endlines
36 static int seek_sect(FILE *f, const char *section)
41 len = strlen(section);
42 // seek to the section needed
45 tmp = fgets(line, sizeof(line), f);
46 if (tmp == NULL) break;
48 if (line[0] != '[') continue; // not section start
49 if (strncmp(line + 1, section, len) == 0 && line[len+1] == ']')
57 static void keys_write(FILE *fn, const char *bind_str, int dev_id, const int *binds, int no_defaults)
60 int key_count = 0, k, i;
63 in_get_config(dev_id, IN_CFG_BIND_COUNT, &key_count);
64 def_binds = in_get_dev_def_binds(dev_id);
66 for (k = 0; k < key_count; k++)
72 for (t = 0; t < IN_BINDTYPE_COUNT; t++)
73 if (binds[IN_BIND_OFFS(k, t)] != def_binds[IN_BIND_OFFS(k, t)])
76 if (no_defaults && t == IN_BINDTYPE_COUNT)
77 continue; /* no change from defaults */
79 name = in_get_key_name(dev_id, k);
81 for (t = 0; t < IN_BINDTYPE_COUNT; t++)
82 if (binds[IN_BIND_OFFS(k, t)] != 0 || def_binds[IN_BIND_OFFS(k, t)] == 0)
85 if (t == IN_BINDTYPE_COUNT) {
86 /* key has default bind removed */
87 fprintf(fn, "%s %s =" NL, bind_str, name);
91 for (i = 0; me_ctrl_actions[i].name != NULL; i++) {
92 mask = me_ctrl_actions[i].mask;
93 if (mask & binds[IN_BIND_OFFS(k, IN_BINDTYPE_PLAYER12)]) {
94 strncpy(act, me_ctrl_actions[i].name, 31);
95 fprintf(fn, "%s %s = player1 %s" NL, bind_str, name, mystrip(act));
97 mask = me_ctrl_actions[i].mask << 16;
98 if (mask & binds[IN_BIND_OFFS(k, IN_BINDTYPE_PLAYER12)]) {
99 strncpy(act, me_ctrl_actions[i].name, 31);
100 fprintf(fn, "%s %s = player2 %s" NL, bind_str, name, mystrip(act));
104 for (i = 0; emuctrl_actions[i].name != NULL; i++) {
105 mask = emuctrl_actions[i].mask;
106 if (mask & binds[IN_BIND_OFFS(k, IN_BINDTYPE_EMU)]) {
107 strncpy(act, emuctrl_actions[i].name, 31);
108 fprintf(fn, "%s %s = %s" NL, bind_str, name, mystrip(act));
114 /* XXX: this should go to menu structures instead */
115 static int default_var(const menu_entry *me)
119 case MA_OPT2_ENABLE_YM2612:
120 case MA_OPT2_ENABLE_SN76496:
121 case MA_OPT2_ENABLE_Z80:
122 case MA_OPT_6BUTTON_PAD:
123 case MA_OPT_ACC_SPRITES:
124 case MA_OPT_ARM940_SOUND:
127 case MA_CDOPT_SCALEROT_CHIP:
128 case MA_CDOPT_BETTER_SYNC:
129 case MA_CDOPT_SAVERAM:
130 case MA_32XOPT_ENABLE_32X:
132 case MA_OPT2_SVP_DYNAREC:
133 case MA_OPT2_NO_SPRITE_LIM:
134 case MA_OPT2_NO_IDLE_LOOPS:
135 return defaultConfig.s_PicoOpt;
137 case MA_OPT_SRAM_STATES:
138 case MA_OPT_SHOW_FPS:
139 case MA_OPT_ENABLE_SOUND:
140 case MA_OPT2_GZIP_STATES:
141 case MA_OPT2_SQUIDGEHACK:
142 case MA_OPT2_NO_LAST_ROM:
143 case MA_OPT2_RAMTIMINGS:
145 case MA_OPT2_A_SN_GAMMA:
147 case MA_OPT_INTERLACED:
148 case MA_OPT2_DBLBUFF:
149 case MA_OPT2_STATUS_LINE:
150 case MA_OPT2_NO_FRAME_LIMIT:
151 case MA_OPT_TEARING_FIX:
152 return defaultConfig.EmuOpt;
154 case MA_CTRL_TURBO_RATE: return defaultConfig.turbo_rate;
155 case MA_OPT_SCALING: return defaultConfig.scaling;
156 case MA_OPT_ROTATION: return defaultConfig.rotation;
157 case MA_OPT2_GAMMA: return defaultConfig.gamma;
158 case MA_OPT_FRAMESKIP: return defaultConfig.Frameskip;
159 case MA_OPT_CONFIRM_STATES: return defaultConfig.confirm_save;
160 case MA_OPT_CPU_CLOCKS: return defaultConfig.CPUclock;
161 case MA_OPT_RENDERER: return defaultConfig.renderer;
162 case MA_32XOPT_RENDERER: return defaultConfig.renderer32x;
164 case MA_OPT_SAVE_SLOT:
168 lprintf("missing default for %d\n", me->id);
173 static int is_cust_val_default(const menu_entry *me)
178 return defaultConfig.s_PicoRegion == PicoRegionOverride &&
179 defaultConfig.s_PicoAutoRgnOrder == PicoAutoRgnOrder;
180 case MA_OPT_SOUND_QUALITY:
181 return defaultConfig.s_PsndRate == PsndRate &&
182 ((defaultConfig.s_PicoOpt ^ PicoOpt) & POPT_EN_STEREO) == 0;
183 case MA_CDOPT_READAHEAD:
184 return defaultConfig.s_PicoCDBuffers == PicoCDBuffers;
185 case MA_32XOPT_MSH2_CYCLES:
186 return p32x_msh2_multiplier == MSH2_MULTI_DEFAULT;
187 case MA_32XOPT_SSH2_CYCLES:
188 return p32x_ssh2_multiplier == SSH2_MULTI_DEFAULT;
192 lprintf("is_cust_val_default: unhandled id %i\n", me->id);
196 int config_writesect(const char *fname, const char *section)
198 FILE *fo = NULL, *fn = NULL; // old and new
199 int no_defaults = 0; // avoid saving defaults
202 char line[128], *tmp;
208 fo = fopen(fname, "r");
210 fn = fopen(fname, "w");
214 ret = seek_sect(fo, section);
216 // sect not found, we can simply append
217 fclose(fo); fo = NULL;
218 fn = fopen(fname, "a");
224 rename(fname, "tmp.cfg");
225 fo = fopen("tmp.cfg", "r");
226 fn = fopen(fname, "w");
227 if (fo == NULL || fn == NULL) goto write;
229 // copy everything until sect
230 tlen = strlen(section);
233 tmp = fgets(line, sizeof(line), fo);
234 if (tmp == NULL) break;
236 if (line[0] == '[' && strncmp(line + 1, section, tlen) == 0 && line[tlen+1] == ']')
241 // now skip to next sect
244 tmp = fgets(line, sizeof(line), fo);
245 if (tmp == NULL) break;
246 if (line[0] == '[') {
247 fseek(fo, -strlen(line), SEEK_CUR);
253 fclose(fo); fo = NULL;
259 fn = fopen(fname, "w");
268 fprintf(fn, "[%s]" NL, section);
270 for (me = me_list_get_first(); me != NULL; me = me_list_get_next())
273 if (!me->need_to_save)
275 if (me->name == NULL || me->name[0] == 0)
278 if (me->beh == MB_OPT_ONOFF || me->beh == MB_OPT_CUSTONOFF) {
279 if (!no_defaults || ((*(int *)me->var ^ default_var(me)) & me->mask))
280 fprintf(fn, "%s = %i" NL, me->name, (*(int *)me->var & me->mask) ? 1 : 0);
282 else if (me->beh == MB_OPT_RANGE || me->beh == MB_OPT_CUSTRANGE) {
283 if (!no_defaults || (*(int *)me->var ^ default_var(me)))
284 fprintf(fn, "%s = %i" NL, me->name, *(int *)me->var);
286 else if (me->beh == MB_OPT_ENUM && me->data != NULL) {
287 const char **names = (const char **)me->data;
288 for (t = 0; names[t] != NULL; t++)
289 if (*(int *)me->var == t && (!no_defaults || (*(int *)me->var ^ default_var(me)))) {
290 strncpy(line, names[t], sizeof(line));
294 else if (me->generate_name != NULL) {
295 if (!no_defaults || !is_cust_val_default(me)) {
296 strncpy(line, me->generate_name(0, &dummy), sizeof(line));
301 lprintf("config: unhandled write: %i\n", me->id);
305 line[sizeof(line) - 1] = 0;
307 fprintf(fn, "%s = %s" NL, me->name, line);
310 /* input: save device names */
311 for (t = 0; t < IN_MAX_DEVS; t++)
313 const int *binds = in_get_dev_binds(t);
314 const char *name = in_get_dev_name(t, 0, 0);
315 if (binds == NULL || name == NULL)
318 fprintf(fn, "input%d = %s" NL, t, name);
321 /* input: save binds */
322 for (t = 0; t < IN_MAX_DEVS; t++)
324 const int *binds = in_get_dev_binds(t);
325 const char *name = in_get_dev_name(t, 0, 0);
329 if (binds == NULL || name == NULL)
332 sprintf(strbind, "bind%d", t);
333 if (t == 0) strbind[4] = 0;
335 in_get_config(t, IN_CFG_BIND_COUNT, &count);
336 keys_write(fn, strbind, t, binds, no_defaults);
341 fprintf(fn, "Sound Volume = %i" NL, currentConfig.volume);
348 // copy whatever is left
351 tmp = fgets(line, sizeof(line), fo);
352 if (tmp == NULL) break;
365 int config_writelrom(const char *fname)
367 char line[128], *tmp, *optr = NULL;
368 char *old_data = NULL;
372 if (strlen(rom_fname_loaded) == 0) return -1;
374 f = fopen(fname, "r");
377 fseek(f, 0, SEEK_END);
379 fseek(f, 0, SEEK_SET);
380 old_data = malloc(size + size/8);
381 if (old_data != NULL)
386 tmp = fgets(line, sizeof(line), f);
387 if (tmp == NULL) break;
389 if (strncasecmp(line, "LastUsedROM", 11) == 0)
391 sprintf(optr, "%s", line);
392 optr += strlen(optr);
398 f = fopen(fname, "w");
399 if (f == NULL) return -1;
401 if (old_data != NULL) {
402 fwrite(old_data, 1, optr - old_data, f);
405 fprintf(f, "LastUsedROM = %s" NL, rom_fname_loaded);
410 /* --------------------------------------------------------------------------*/
412 int config_readlrom(const char *fname)
414 char line[128], *tmp;
415 int i, len, ret = -1;
418 f = fopen(fname, "r");
419 if (f == NULL) return -1;
421 // seek to the section needed
424 tmp = fgets(line, sizeof(line), f);
425 if (tmp == NULL) break;
427 if (strncasecmp(line, "LastUsedROM", 11) != 0) continue;
429 for (i = 0; i < len; i++)
430 if (line[i] == '#' || line[i] == '\r' || line[i] == '\n') { line[i] = 0; break; }
431 tmp = strchr(line, '=');
432 if (tmp == NULL) break;
436 len = sizeof(rom_fname_loaded);
437 strncpy(rom_fname_loaded, tmp, len);
438 rom_fname_loaded[len-1] = 0;
447 static int custom_read(menu_entry *me, const char *var, const char *val)
453 case MA_OPT_FRAMESKIP:
454 if (strcasecmp(var, "Frameskip") != 0) return 0;
455 if (strcasecmp(val, "Auto") == 0)
456 currentConfig.Frameskip = -1;
457 else currentConfig.Frameskip = atoi(val);
460 case MA_OPT_SOUND_QUALITY:
461 if (strcasecmp(var, "Sound Quality") != 0) return 0;
462 PsndRate = strtoul(val, &tmp, 10);
463 if (PsndRate < 8000 || PsndRate > 44100)
465 if (*tmp == 'H' || *tmp == 'h') tmp++;
466 if (*tmp == 'Z' || *tmp == 'z') tmp++;
467 while (*tmp == ' ') tmp++;
468 if (strcasecmp(tmp, "stereo") == 0) {
469 PicoOpt |= POPT_EN_STEREO;
470 } else if (strcasecmp(tmp, "mono") == 0) {
471 PicoOpt &= ~POPT_EN_STEREO;
477 if (strcasecmp(var, "Region") != 0) return 0;
478 if (strncasecmp(val, "Auto: ", 6) == 0)
480 const char *p = val + 5, *end = val + strlen(val);
482 PicoRegionOverride = PicoAutoRgnOrder = 0;
483 for (i = 0; p < end && i < 3; i++)
485 while (*p == ' ') p++;
486 if (p[0] == 'J' && p[1] == 'P') {
487 PicoAutoRgnOrder |= 1 << (i*4);
488 } else if (p[0] == 'U' && p[1] == 'S') {
489 PicoAutoRgnOrder |= 4 << (i*4);
490 } else if (p[0] == 'E' && p[1] == 'U') {
491 PicoAutoRgnOrder |= 8 << (i*4);
493 while (*p != ' ' && *p != 0) p++;
497 else if (strcasecmp(val, "Auto") == 0) {
498 PicoRegionOverride = 0;
499 } else if (strcasecmp(val, "Japan NTSC") == 0) {
500 PicoRegionOverride = 1;
501 } else if (strcasecmp(val, "Japan PAL") == 0) {
502 PicoRegionOverride = 2;
503 } else if (strcasecmp(val, "USA") == 0) {
504 PicoRegionOverride = 4;
505 } else if (strcasecmp(val, "Europe") == 0) {
506 PicoRegionOverride = 8;
512 if (strcasecmp(var, "Gamma correction") != 0) return 0;
513 currentConfig.gamma = (int) (atof(val) * 100.0);
516 case MA_CDOPT_READAHEAD:
517 if (strcasecmp(var, "ReadAhead buffer") != 0) return 0;
518 PicoCDBuffers = atoi(val) / 2;
521 case MA_32XOPT_MSH2_CYCLES:
522 case MA_32XOPT_SSH2_CYCLES: {
523 int *mul = (me->id == MA_32XOPT_MSH2_CYCLES) ? &p32x_msh2_multiplier : &p32x_ssh2_multiplier;
524 *mul = ((unsigned int)atoi(val) << SH2_MULTI_SHIFT) / 7670;
530 if (strcasecmp(var, "Scale factor") != 0) return 0;
531 currentConfig.scale = atof(val);
533 case MA_OPT3_HSCALE32:
534 if (strcasecmp(var, "Hor. scale (for low res. games)") != 0) return 0;
535 currentConfig.hscale32 = atof(val);
537 case MA_OPT3_HSCALE40:
538 if (strcasecmp(var, "Hor. scale (for hi res. games)") != 0) return 0;
539 currentConfig.hscale40 = atof(val);
543 if (strcasecmp(var, "Wait for vsync") != 0) return 0;
544 if (strcasecmp(val, "never") == 0) {
545 currentConfig.EmuOpt &= ~0x12000;
546 } else if (strcasecmp(val, "sometimes") == 0) {
547 currentConfig.EmuOpt |= 0x12000;
548 } else if (strcasecmp(val, "always") == 0) {
549 currentConfig.EmuOpt &= ~0x12000;
550 currentConfig.EmuOpt |= 0x02000;
556 lprintf("unhandled custom_read %i: %s\n", me->id, var);
562 static unsigned int keys_encountered = 0;
564 static int parse_bind_val(const char *val, int *type)
568 *type = IN_BINDTYPE_NONE;
572 if (strncasecmp(val, "player", 6) == 0)
574 int player, shift = 0;
575 player = atoi(val + 6) - 1;
582 *type = IN_BINDTYPE_PLAYER12;
583 for (i = 0; me_ctrl_actions[i].name != NULL; i++) {
584 if (strncasecmp(me_ctrl_actions[i].name, val + 8, strlen(val + 8)) == 0)
585 return me_ctrl_actions[i].mask << shift;
588 for (i = 0; emuctrl_actions[i].name != NULL; i++) {
589 if (strncasecmp(emuctrl_actions[i].name, val, strlen(val)) == 0) {
590 *type = IN_BINDTYPE_EMU;
591 return emuctrl_actions[i].mask;
598 static void keys_parse(const char *key, const char *val, int dev_id)
602 acts = parse_bind_val(val, &type);
604 lprintf("config: unhandled action \"%s\"\n", val);
608 in_config_bind_key(dev_id, key, acts, type);
611 static int get_numvar_num(const char *var)
619 num = strtoul(var, &p, 10);
620 if (*p == 0 || *p == ' ')
626 /* map dev number in confing to input dev number */
627 static unsigned char input_dev_map[IN_MAX_DEVS];
629 static void parse(const char *var, const char *val)
634 if (strcasecmp(var, "LastUsedROM") == 0)
635 return; /* handled elsewhere */
637 if (strcasecmp(var, "Sound Volume") == 0) {
638 currentConfig.volume = atoi(val);
642 /* input: device name */
643 if (strncasecmp(var, "input", 5) == 0) {
644 int num = get_numvar_num(var + 5);
645 if (num >= 0 && num < IN_MAX_DEVS)
646 input_dev_map[num] = in_config_parse_dev(val);
648 lprintf("config: failed to parse: %s\n", var);
653 if (strncasecmp(var, "bind", 4) == 0) {
654 const char *p = var + 4;
655 int num = get_numvar_num(p);
656 if (num < 0 || num >= IN_MAX_DEVS) {
657 lprintf("config: failed to parse: %s\n", var);
661 num = input_dev_map[num];
662 if (num < 0 || num >= IN_MAX_DEVS) {
663 lprintf("config: invalid device id: %s\n", var);
667 while (*p && *p != ' ') p++;
668 while (*p && *p == ' ') p++;
669 keys_parse(p, val, num);
673 for (me = me_list_get_first(); me != NULL; me = me_list_get_next())
677 if (!me->need_to_save)
679 if (me->name == NULL || strcasecmp(var, me->name) != 0)
682 if (me->beh == MB_OPT_ONOFF) {
683 tmp = strtol(val, &p, 0);
686 if (tmp) *(int *)me->var |= me->mask;
687 else *(int *)me->var &= ~me->mask;
690 else if (me->beh == MB_OPT_RANGE) {
691 tmp = strtol(val, &p, 0);
694 if (tmp < me->min) tmp = me->min;
695 if (tmp > me->max) tmp = me->max;
696 *(int *)me->var = tmp;
699 else if (me->beh == MB_OPT_ENUM) {
700 const char **names, *p1;
703 names = (const char **)me->data;
706 for (i = 0; names[i] != NULL; i++) {
707 for (p1 = names[i]; *p1 == ' '; p1++)
709 if (strcasecmp(p1, val) == 0) {
716 else if (custom_read(me, var, val))
720 lprintf("config_readsect: unhandled var: \"%s\"\n", var);
724 lprintf("config_readsect: unhandled val for \"%s\": %s\n", var, val);
728 int config_havesect(const char *fname, const char *section)
733 f = fopen(fname, "r");
734 if (f == NULL) return 0;
736 ret = seek_sect(f, section);
741 int config_readsect(const char *fname, const char *section)
743 char line[128], *var, *val;
747 f = fopen(fname, "r");
748 if (f == NULL) return -1;
752 ret = seek_sect(f, section);
754 lprintf("config_readsect: %s: missing section [%s]\n", fname, section);
760 keys_encountered = 0;
761 memset(input_dev_map, 0xff, sizeof(input_dev_map));
765 ret = config_get_var_val(f, line, sizeof(line), &var, &val);
767 if (ret == -1) continue;
778 static char *mystrip(char *str)
783 for (i = 0; i < len; i++)
784 if (str[i] != ' ') break;
785 if (i > 0) memmove(str, str + i, len - i + 1);
788 for (i = len - 1; i >= 0; i--)
789 if (str[i] != ' ') break;
798 * -1 - failed to parse line
800 int config_get_var_val(void *file, char *line, int lsize, char **rvar, char **rval)
802 char *var, *val, *tmp;
806 tmp = fgets(line, lsize, f);
807 if (tmp == NULL) return 0;
809 if (line[0] == '[') return 0; // other section
811 // strip comments, linefeed, spaces..
813 for (i = 0; i < len; i++)
814 if (line[i] == '#' || line[i] == '\r' || line[i] == '\n') { line[i] = 0; break; }
817 if (len <= 0) return -1;;
820 for (i = 0; i < len; i++)
821 if (line[i] == '=') break;
822 if (i >= len || strchr(&line[i+1], '=') != NULL) {
823 lprintf("config_readsect: can't parse: %s\n", line);
833 if (strlen(var) == 0 || (strlen(val) == 0 && strncasecmp(var, "bind", 4) != 0)) {
834 lprintf("config_readsect: something's empty: \"%s\" = \"%s\"\n", var, val);