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ROM loader error handling improved
[libpicofe.git] / common / emu.c
CommitLineData
f013066e 1// (c) Copyright 2006-2007 notaz, All rights reserved.\r
2// Free for non-commercial use.\r
3\r
4// For commercial use, separate licencing terms must be obtained.\r
5\r
6#include <stdio.h>\r
7#include <stdlib.h>\r
8#include <ctype.h> // tolower\r
9#ifndef NO_SYNC\r
10#include <unistd.h>\r
11#endif\r
12\r
13#include "emu.h"\r
14#include "menu.h"\r
15#include "fonts.h"\r
16#include "lprintf.h"\r
0ae25549 17#include "config.h"\r
f013066e 18\r
19#include <Pico/PicoInt.h>\r
20#include <Pico/Patch.h>\r
9fe01b96 21#include <Pico/cd/cue.h>\r
f013066e 22#include <zlib/zlib.h>\r
23\r
24#if defined(__GP2X__)\r
25 #include "../gp2x/gp2x.h"\r
26 #define SCREEN_WIDTH 320\r
27 #define SCREEN_BUFFER gp2x_screen\r
28#elif defined(__GIZ__)\r
29 #include "../gizmondo/giz.h"\r
30 #define SCREEN_WIDTH 321\r
2951214e 31 #define SCREEN_BUFFER giz_screen\r
32#elif defined(PSP)\r
33 #include "../psp/psp.h"\r
34 #define SCREEN_WIDTH 512\r
35 #define SCREEN_BUFFER psp_screen\r
f013066e 36#endif\r
37\r
3e85ebdd 38char *PicoConfigFile = "config.cfg";\r
0ae25549 39currentConfig_t currentConfig, defaultConfig;\r
144a28a0 40int rom_loaded = 0;\r
f013066e 41char noticeMsg[64];\r
42int state_slot = 0;\r
43int config_slot = 0, config_slot_current = 0;\r
367b6f1f 44char lastRomFile[512];\r
8e708f92 45int kb_combo_keys = 0, kb_combo_acts = 0; // keys and actions which need button combos\r
8a091e48 46int pico_inp_mode = 0;\r
f013066e 47\r
48unsigned char *movie_data = NULL;\r
49static int movie_size = 0;\r
50\r
51// provided by platform code:\r
52extern char romFileName[];\r
53extern void emu_noticeMsgUpdated(void);\r
54extern void emu_getMainDir(char *dst, int len);\r
55extern void emu_setDefaultConfig(void);\r
56extern void menu_romload_prepare(const char *rom_name);\r
57extern void menu_romload_end(void);\r
58\r
59\r
60// utilities\r
61static void strlwr_(char* string)\r
62{\r
63 while ( (*string++ = (char)tolower(*string)) );\r
64}\r
65\r
66static int try_rfn_cut(void)\r
67{\r
68 FILE *tmp;\r
69 char *p;\r
70\r
71 p = romFileName + strlen(romFileName) - 1;\r
72 for (; p > romFileName; p--)\r
73 if (*p == '.') break;\r
74 *p = 0;\r
75\r
76 if((tmp = fopen(romFileName, "rb"))) {\r
77 fclose(tmp);\r
78 return 1;\r
79 }\r
80 return 0;\r
81}\r
82\r
83static void get_ext(char *file, char *ext)\r
84{\r
85 char *p;\r
86\r
87 p = file + strlen(file) - 4;\r
88 if (p < file) p = file;\r
89 strncpy(ext, p, 4);\r
90 ext[4] = 0;\r
91 strlwr_(ext);\r
92}\r
93\r
88bfc63d 94char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r
95char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r
f013066e 96char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
97\r
98int emu_findBios(int region, char **bios_file)\r
99{\r
100 static char bios_path[1024];\r
101 int i, count;\r
102 char **files;\r
103 FILE *f = NULL;\r
104\r
105 if (region == 4) { // US\r
106 files = biosfiles_us;\r
107 count = sizeof(biosfiles_us) / sizeof(char *);\r
108 } else if (region == 8) { // EU\r
109 files = biosfiles_eu;\r
110 count = sizeof(biosfiles_eu) / sizeof(char *);\r
111 } else if (region == 1 || region == 2) {\r
112 files = biosfiles_jp;\r
113 count = sizeof(biosfiles_jp) / sizeof(char *);\r
114 } else {\r
115 return 0;\r
116 }\r
117\r
118 for (i = 0; i < count; i++)\r
119 {\r
120 emu_getMainDir(bios_path, sizeof(bios_path));\r
121 strcat(bios_path, files[i]);\r
122 strcat(bios_path, ".bin");\r
123 f = fopen(bios_path, "rb");\r
124 if (f) break;\r
125\r
126 bios_path[strlen(bios_path) - 4] = 0;\r
127 strcat(bios_path, ".zip");\r
128 f = fopen(bios_path, "rb");\r
129 if (f) break;\r
130 }\r
131\r
132 if (f) {\r
133 lprintf("using bios: %s\n", bios_path);\r
134 fclose(f);\r
135 if (bios_file) *bios_file = bios_path;\r
136 return 1;\r
137 } else {\r
138 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
139 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
140 lprintf("%s\n", menuErrorMsg);\r
141 return 0;\r
142 }\r
143}\r
144\r
c6334564 145/* check if the name begins with BIOS name */\r
367b6f1f 146/*\r
c6334564 147static int emu_isBios(const char *name)\r
148{\r
149 int i;\r
150 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
151 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
152 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
153 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
154 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
155 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
156 return 0;\r
157}\r
367b6f1f 158*/\r
c6334564 159\r
367b6f1f 160static unsigned char id_header[0x100];\r
0ae25549 161\r
f013066e 162/* checks if romFileName points to valid MegaCD image\r
163 * if so, checks for suitable BIOS */\r
164int emu_cdCheck(int *pregion)\r
165{\r
166 unsigned char buf[32];\r
167 pm_file *cd_f;\r
9fe01b96 168 int region = 4; // 1: Japan, 4: US, 8: Europe\r
169 char ext[5], *fname = romFileName;\r
170 cue_track_type type = CT_UNKNOWN;\r
171 cue_data_t *cue_data = NULL;\r
1ceda417 172\r
173 get_ext(romFileName, ext);\r
9fe01b96 174 if (strcasecmp(ext, ".cue") == 0) {\r
175 cue_data = cue_parse(romFileName);\r
176 if (cue_data != NULL) {\r
177 fname = cue_data->tracks[1].fname;\r
178 type = cue_data->tracks[1].type;\r
179 }\r
e9a13365 180 else\r
181 return -1;\r
9fe01b96 182 }\r
183\r
184 cd_f = pm_open(fname);\r
185 if (cue_data != NULL)\r
186 cue_destroy(cue_data);\r
f013066e 187\r
e9a13365 188 if (cd_f == NULL) return 0; // let the upper level handle this\r
f013066e 189\r
190 if (pm_read(buf, 32, cd_f) != 32) {\r
191 pm_close(cd_f);\r
e9a13365 192 return -1;\r
f013066e 193 }\r
194\r
9fe01b96 195 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {\r
196 if (type && type != CT_ISO)\r
197 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
198 type = CT_ISO; // Sega CD (ISO)\r
199 }\r
200 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {\r
201 if (type && type != CT_BIN)\r
202 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
203 type = CT_BIN; // Sega CD (BIN)\r
204 }\r
205\r
206 if (type == CT_UNKNOWN) {\r
f013066e 207 pm_close(cd_f);\r
208 return 0;\r
209 }\r
210\r
9fe01b96 211 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);\r
367b6f1f 212 pm_read(id_header, sizeof(id_header), cd_f);\r
0ae25549 213\r
f013066e 214 /* it seems we have a CD image here. Try to detect region now.. */\r
9fe01b96 215 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
f013066e 216 pm_read(buf, 1, cd_f);\r
217 pm_close(cd_f);\r
218\r
219 if (buf[0] == 0x64) region = 8; // EU\r
220 if (buf[0] == 0xa1) region = 1; // JAP\r
221\r
222 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
9fe01b96 223 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
f013066e 224\r
225 if (pregion != NULL) *pregion = region;\r
226\r
227 return type;\r
228}\r
229\r
ff63afa1 230static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r
0ae25549 231{\r
232 char *p = dest;\r
233 int i;\r
234\r
235 if (swab) swab = 1;\r
236\r
237 for (i = len - 1; i >= 0; i--)\r
238 {\r
239 if (src[i^swab] != ' ') break;\r
240 }\r
241 len = i + 1;\r
242\r
243 for (i = 0; i < len; i++)\r
244 {\r
245 unsigned char s = src[i^swab];\r
246 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
247 s != '[' && s != ']' && s != '\\')\r
248 {\r
249 *p++ = s;\r
250 }\r
251 else\r
252 {\r
253 sprintf(p, "\\%02x", s);\r
254 p += 3;\r
255 }\r
256 }\r
257\r
258 return p - dest;\r
259}\r
260\r
261char *emu_makeRomId(void)\r
262{\r
263 static char id_string[3+0x11+0x11+0x30+16];\r
8e708f92 264 int pos, swab = 1;\r
0ae25549 265\r
dd5fd477 266 if (PicoAHW & PAHW_MCD) {\r
8e708f92 267 strcpy(id_string, "CD|");\r
268 swab = 0;\r
269 }\r
367b6f1f 270 else strcpy(id_string, "MD|");\r
0ae25549 271 pos = 3;\r
272\r
8e708f92 273 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r
0ae25549 274 id_string[pos] = '|'; pos++;\r
8e708f92 275 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r
0ae25549 276 id_string[pos] = '|'; pos++;\r
8e708f92 277 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r
0ae25549 278 id_string[pos] = 0;\r
279\r
0ae25549 280 return id_string;\r
281}\r
282\r
f013066e 283int emu_ReloadRom(void)\r
284{\r
285 unsigned int rom_size = 0;\r
286 char *used_rom_name = romFileName;\r
144a28a0 287 unsigned char *rom_data = NULL;\r
f013066e 288 char ext[5];\r
e9a13365 289 pm_file *rom = NULL;\r
f013066e 290 int ret, cd_state, cd_region, cfg_loaded = 0;\r
291\r
292 lprintf("emu_ReloadRom(%s)\n", romFileName);\r
293\r
294 get_ext(romFileName, ext);\r
295\r
296 // detect wrong extensions\r
144a28a0 297 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
e9a13365 298 sprintf(menuErrorMsg, "Not a ROM/CD selected.");\r
f013066e 299 return 0;\r
300 }\r
301\r
302 PicoPatchUnload();\r
303\r
304 // check for movie file\r
144a28a0 305 if (movie_data) {\r
f013066e 306 free(movie_data);\r
307 movie_data = 0;\r
308 }\r
88bfc63d 309 if (!strcmp(ext, ".gmv"))\r
310 {\r
f013066e 311 // check for both gmv and rom\r
312 int dummy;\r
313 FILE *movie_file = fopen(romFileName, "rb");\r
314 if(!movie_file) {\r
315 sprintf(menuErrorMsg, "Failed to open movie.");\r
316 return 0;\r
317 }\r
318 fseek(movie_file, 0, SEEK_END);\r
319 movie_size = ftell(movie_file);\r
320 fseek(movie_file, 0, SEEK_SET);\r
321 if(movie_size < 64+3) {\r
322 sprintf(menuErrorMsg, "Invalid GMV file.");\r
323 fclose(movie_file);\r
324 return 0;\r
325 }\r
326 movie_data = malloc(movie_size);\r
327 if(movie_data == NULL) {\r
328 sprintf(menuErrorMsg, "low memory.");\r
329 fclose(movie_file);\r
330 return 0;\r
331 }\r
332 fread(movie_data, 1, movie_size, movie_file);\r
333 fclose(movie_file);\r
334 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
335 sprintf(menuErrorMsg, "Invalid GMV file.");\r
336 return 0;\r
337 }\r
338 dummy = try_rfn_cut() || try_rfn_cut();\r
339 if (!dummy) {\r
340 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
341 return 0;\r
342 }\r
343 get_ext(romFileName, ext);\r
344 }\r
345 else if (!strcmp(ext, ".pat")) {\r
346 int dummy;\r
347 PicoPatchLoad(romFileName);\r
348 dummy = try_rfn_cut() || try_rfn_cut();\r
349 if (!dummy) {\r
350 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
351 return 0;\r
352 }\r
353 get_ext(romFileName, ext);\r
354 }\r
355\r
dd5fd477 356 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)\r
f013066e 357 Stop_CD();\r
358\r
359 // check for MegaCD image\r
360 cd_state = emu_cdCheck(&cd_region);\r
e9a13365 361 if (cd_state >= 0 && cd_state != CIT_NOT_CD)\r
f013066e 362 {\r
dd5fd477 363 PicoAHW |= PAHW_MCD;\r
f013066e 364 // valid CD image, check for BIOS..\r
365\r
366 // we need to have config loaded at this point\r
367 ret = emu_ReadConfig(1, 1);\r
368 if (!ret) emu_ReadConfig(0, 1);\r
369 cfg_loaded = 1;\r
370\r
371 if (PicoRegionOverride) {\r
372 cd_region = PicoRegionOverride;\r
373 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");\r
374 }\r
375 if (!emu_findBios(cd_region, &used_rom_name)) {\r
376 // bios_help() ?\r
dd5fd477 377 PicoAHW &= ~PAHW_MCD;\r
f013066e 378 return 0;\r
379 }\r
380\r
f013066e 381 get_ext(used_rom_name, ext);\r
382 }\r
383 else\r
384 {\r
dd5fd477 385 if (PicoAHW & PAHW_MCD) Stop_CD();\r
386 PicoAHW &= ~PAHW_MCD;\r
f013066e 387 }\r
388\r
389 rom = pm_open(used_rom_name);\r
144a28a0 390 if (!rom) {\r
e9a13365 391 sprintf(menuErrorMsg, "Failed to open ROM/CD image");\r
392 goto fail;\r
393 }\r
394\r
395 if (cd_state < 0) {\r
396 sprintf(menuErrorMsg, "Invalid CD image");\r
397 goto fail;\r
f013066e 398 }\r
399\r
a6df06b7 400 menu_romload_prepare(used_rom_name); // also CD load\r
f013066e 401\r
144a28a0 402 PicoCartUnload();\r
403 rom_loaded = 0;\r
f013066e 404\r
144a28a0 405 if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
f013066e 406 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
407 lprintf("%s\n", menuErrorMsg);\r
e9a13365 408 goto fail2;\r
f013066e 409 }\r
410 pm_close(rom);\r
e9a13365 411 rom = NULL;\r
f013066e 412\r
413 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
144a28a0 414 if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
f013066e 415 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
416 if (rom_data) free(rom_data);\r
f013066e 417 sprintf(menuErrorMsg, "Not a ROM selected.");\r
e9a13365 418 goto fail2;\r
f013066e 419 }\r
420\r
421 // load config for this ROM (do this before insert to get correct region)\r
dd5fd477 422 if (!(PicoAHW & PAHW_MCD))\r
367b6f1f 423 memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r
f013066e 424 if (!cfg_loaded) {\r
425 ret = emu_ReadConfig(1, 1);\r
426 if (!ret) emu_ReadConfig(0, 1);\r
427 }\r
428\r
429 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
144a28a0 430 if (PicoCartInsert(rom_data, rom_size)) {\r
f013066e 431 sprintf(menuErrorMsg, "Failed to load ROM.");\r
e9a13365 432 goto fail2;\r
f013066e 433 }\r
434\r
f013066e 435 // insert CD if it was detected\r
1ceda417 436 if (cd_state != CIT_NOT_CD) {\r
437 ret = Insert_CD(romFileName, cd_state);\r
f013066e 438 if (ret != 0) {\r
439 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
440 lprintf("%s\n", menuErrorMsg);\r
e9a13365 441 goto fail2;\r
f013066e 442 }\r
443 }\r
444\r
a6df06b7 445 menu_romload_end();\r
446\r
f013066e 447 if (PicoPatches) {\r
448 PicoPatchPrepare();\r
449 PicoPatchApply();\r
450 }\r
451\r
452 // additional movie stuff\r
e9a13365 453 if (movie_data)\r
454 {\r
455 if (movie_data[0x14] == '6')\r
dd5fd477 456 PicoOpt |= POPT_6BTN_PAD; // 6 button pad\r
457 else PicoOpt &= ~POPT_6BTN_PAD;\r
a4790056 458 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
e9a13365 459 if (movie_data[0xF] >= 'A') {\r
460 if (movie_data[0x16] & 0x80) {\r
f013066e 461 PicoRegionOverride = 8;\r
462 } else {\r
463 PicoRegionOverride = 4;\r
464 }\r
8d5cb10d 465 PicoReset();\r
f013066e 466 // TODO: bits 6 & 5\r
467 }\r
468 movie_data[0x18+30] = 0;\r
469 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
470 }\r
471 else\r
472 {\r
dd5fd477 473 PicoOpt &= ~POPT_DIS_VDP_FIFO;\r
e9a13365 474 if (Pico.m.pal) {\r
f013066e 475 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
476 } else {\r
477 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
478 }\r
479 }\r
480 emu_noticeMsgUpdated();\r
481\r
482 // load SRAM for this ROM\r
144a28a0 483 if (currentConfig.EmuOpt & 1)\r
f013066e 484 emu_SaveLoadGame(1, 1);\r
485\r
367b6f1f 486 strncpy(lastRomFile, romFileName, sizeof(lastRomFile)-1);\r
487 lastRomFile[sizeof(lastRomFile)-1] = 0;\r
144a28a0 488 rom_loaded = 1;\r
f013066e 489 return 1;\r
e9a13365 490\r
491fail2:\r
492 menu_romload_end();\r
493fail:\r
494 if (rom != NULL) pm_close(rom);\r
495 return 0;\r
f013066e 496}\r
497\r
498\r
499static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
500{\r
501 char *p;\r
502 int prefix_len = 0;\r
503\r
504 // make save filename\r
505 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
506 *dst = 0;\r
507 if (prefix) {\r
508 strcpy(dst, prefix);\r
509 prefix_len = strlen(prefix);\r
510 }\r
511 strncpy(dst + prefix_len, p, 511-prefix_len);\r
512 dst[511-8] = 0;\r
513 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
514 if (ext) strcat(dst, ext);\r
515}\r
516\r
517\r
2b1fd520 518static void make_config_cfg(char *cfg)\r
519{\r
520 strncpy(cfg, PicoConfigFile, 511);\r
521 if (config_slot != 0)\r
522 {\r
523 char *p = strrchr(cfg, '.');\r
524 if (p == NULL) p = cfg + strlen(cfg);\r
525 sprintf(p, ".%i.cfg", config_slot);\r
526 }\r
527 cfg[511] = 0;\r
528}\r
529\r
f013066e 530int emu_ReadConfig(int game, int no_defaults)\r
531{\r
0ae25549 532 char cfg[512];\r
f013066e 533 FILE *f;\r
0ae25549 534 int ret;\r
f013066e 535\r
536 if (!game)\r
537 {\r
538 if (!no_defaults)\r
f013066e 539 emu_setDefaultConfig();\r
2b1fd520 540 make_config_cfg(cfg);\r
0ae25549 541 ret = config_readsect(cfg, NULL);\r
f013066e 542 }\r
0ae25549 543 else\r
544 {\r
367b6f1f 545 char *sect = emu_makeRomId();\r
f013066e 546\r
0ae25549 547 // try new .cfg way\r
548 if (config_slot != 0)\r
549 sprintf(cfg, "game.%i.cfg", config_slot);\r
550 else strcpy(cfg, "game.cfg");\r
367b6f1f 551\r
552 ret = -1;\r
2b1fd520 553 if (config_havesect(cfg, sect))\r
554 {\r
555 // read user's config\r
67dfdf5f 556 int vol = currentConfig.volume;\r
367b6f1f 557 emu_setDefaultConfig();\r
558 ret = config_readsect(cfg, sect);\r
67dfdf5f 559 currentConfig.volume = vol; // make vol global (bah)\r
367b6f1f 560 }\r
558d8e1f 561 else\r
2b1fd520 562 {\r
563 // read global config, and apply game_def.cfg on top\r
564 make_config_cfg(cfg);\r
565 config_readsect(cfg, NULL);\r
566 ret = config_readsect("game_def.cfg", sect);\r
567 }\r
0ae25549 568\r
569 if (ret != 0)\r
570 {\r
2b1fd520 571 // fall back to old game specific cfg\r
0ae25549 572 char extbuf[16];\r
573 if (config_slot != 0)\r
574 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
575 else strcpy(extbuf, ".pbcfg");\r
576 romfname_ext(cfg, "cfg/", extbuf);\r
577 f = fopen(cfg, "rb");\r
578 if (!f) {\r
579 romfname_ext(cfg, NULL, ".pbcfg");\r
580 f = fopen(cfg, "rb");\r
581 }\r
582 if (f) {\r
367b6f1f 583 int bread;\r
584 fseek(f, 512, SEEK_SET); // skip unused lrom buffer\r
585 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
0ae25549 586 lprintf("emu_ReadConfig: %s %s\n", cfg, bread > 0 ? "(ok)" : "(failed)");\r
587 fclose(f);\r
588 ret = 0;\r
589 }\r
590\r
591 if (ret == 0) {\r
592 PicoOpt = currentConfig.s_PicoOpt;\r
593 PsndRate = currentConfig.s_PsndRate;\r
594 PicoRegionOverride = currentConfig.s_PicoRegion;\r
595 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
88bfc63d 596 // PicoCDBuffers = currentConfig.s_PicoCDBuffers; // ignore in this case\r
0ae25549 597 }\r
598 }\r
599 else\r
600 {\r
367b6f1f 601 lprintf("loaded cfg from sect \"%s\"\n", sect);\r
0ae25549 602 }\r
f013066e 603 }\r
0ae25549 604\r
f013066e 605 // some sanity checks\r
606 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
93c0d147 607#ifdef PSP\r
608 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
960a8e27 609 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
93c0d147 610#else\r
f013066e 611 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
93c0d147 612#endif\r
f013066e 613 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
8ede36b9 614#ifdef __GP2X__\r
f013066e 615 // if volume keys are unbound, bind them to volume control\r
616 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
617 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
618 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
619 }\r
8ede36b9 620#endif\r
0ae25549 621 if (ret == 0) config_slot_current = config_slot;\r
622 return (ret == 0);\r
f013066e 623}\r
624\r
625\r
0ae25549 626int emu_WriteConfig(int is_game)\r
f013066e 627{\r
0ae25549 628 char cfg[512], *game_sect = NULL;\r
629 int ret, write_lrom = 0;\r
f013066e 630\r
0ae25549 631 if (!is_game)\r
f013066e 632 {\r
633 strncpy(cfg, PicoConfigFile, 511);\r
634 if (config_slot != 0)\r
635 {\r
636 char *p = strrchr(cfg, '.');\r
637 if (p == NULL) p = cfg + strlen(cfg);\r
0ae25549 638 sprintf(p, ".%i.cfg", config_slot);\r
f013066e 639 }\r
640 cfg[511] = 0;\r
0ae25549 641 write_lrom = 1;\r
f013066e 642 } else {\r
643 if (config_slot != 0)\r
0ae25549 644 sprintf(cfg, "game.%i.cfg", config_slot);\r
645 else strcpy(cfg, "game.cfg");\r
646 game_sect = emu_makeRomId();\r
367b6f1f 647 lprintf("emu_WriteConfig: sect \"%s\"\n", game_sect);\r
f013066e 648 }\r
649\r
650 lprintf("emu_WriteConfig: %s ", cfg);\r
0ae25549 651 ret = config_writesect(cfg, game_sect);\r
367b6f1f 652 if (write_lrom) config_writelrom(cfg);\r
f013066e 653#ifndef NO_SYNC\r
0ae25549 654 sync();\r
f013066e 655#endif\r
0ae25549 656 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
f013066e 657\r
0ae25549 658 if (ret == 0) config_slot_current = config_slot;\r
659 return ret == 0;\r
f013066e 660}\r
661\r
662\r
663void emu_textOut8(int x, int y, const char *text)\r
664{\r
665 int i,l,len=strlen(text);\r
666 unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
667\r
668 /* always using built-in font */\r
669 for (i = 0; i < len; i++)\r
670 {\r
671 for (l=0;l<8;l++)\r
672 {\r
673 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
674 if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;\r
675 if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;\r
676 if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;\r
677 if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;\r
678 if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;\r
679 if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;\r
680 if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;\r
681 if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;\r
682 }\r
683 screen += 8;\r
684 }\r
685}\r
686\r
687void emu_textOut16(int x, int y, const char *text)\r
688{\r
689 int i,l,len=strlen(text);\r
690 unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
691\r
692 for (i = 0; i < len; i++)\r
693 {\r
694 for (l=0;l<8;l++)\r
695 {\r
696 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
697 if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;\r
698 if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;\r
699 if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;\r
700 if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;\r
701 if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;\r
702 if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;\r
703 if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;\r
704 if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;\r
705 }\r
706 screen += 8;\r
707 }\r
708}\r
709\r
960a8e27 710#ifdef PSP\r
711#define MAX_COMBO_KEY 23\r
712#else\r
713#define MAX_COMBO_KEY 31\r
714#endif\r
715\r
8e708f92 716void emu_findKeyBindCombos(void)\r
717{\r
718 int act, u;\r
719\r
720 // find out which keys and actions are combos\r
721 kb_combo_keys = kb_combo_acts = 0;\r
722 for (act = 0; act < 32; act++)\r
723 {\r
724 int keyc = 0, keyc2 = 0;\r
725 if (act == 16 || act == 17) continue; // player2 flag\r
726 if (act > 17)\r
727 {\r
960a8e27 728 for (u = 0; u <= MAX_COMBO_KEY; u++)\r
8e708f92 729 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
730 }\r
731 else\r
732 {\r
960a8e27 733 for (u = 0; u <= MAX_COMBO_KEY; u++)\r
8e708f92 734 if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1\r
735 (currentConfig.KeyBinds[u] & (1 << act))) keyc++;\r
960a8e27 736 for (u = 0; u <= MAX_COMBO_KEY; u++)\r
8e708f92 737 if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2\r
738 (currentConfig.KeyBinds[u] & (1 << act))) keyc2++;\r
739 if (keyc2 > keyc) keyc = keyc2;\r
740 }\r
741 if (keyc > 1)\r
742 {\r
743 // loop again and mark those keys and actions as combo\r
960a8e27 744 for (u = 0; u <= MAX_COMBO_KEY; u++)\r
8e708f92 745 {\r
746 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
747 kb_combo_keys |= 1 << u;\r
748 kb_combo_acts |= 1 << act;\r
749 }\r
750 }\r
751 }\r
752 }\r
753\r
754 // printf("combo keys/acts: %08x %08x\n", kb_combo_keys, kb_combo_acts);\r
755}\r
756\r
f013066e 757\r
758void emu_updateMovie(void)\r
759{\r
760 int offs = Pico.m.frame_count*3 + 0x40;\r
761 if (offs+3 > movie_size) {\r
762 free(movie_data);\r
763 movie_data = 0;\r
764 strcpy(noticeMsg, "END OF MOVIE.");\r
765 lprintf("END OF MOVIE.\n");\r
766 emu_noticeMsgUpdated();\r
767 } else {\r
768 // MXYZ SACB RLDU\r
769 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
770 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
771 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
772 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
773 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
774 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
775 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
776 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
777 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
778 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
779 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
780 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
781 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
782 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
783 }\r
784}\r
785\r
786\r
787static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
788{\r
789 return gzread(file, p, _n);\r
790}\r
791\r
792\r
793static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
794{\r
795 return gzwrite(file, p, _n);\r
796}\r
797\r
798static int try_ropen_file(const char *fname)\r
799{\r
800 FILE *f;\r
801\r
802 f = fopen(fname, "rb");\r
803 if (f) {\r
804 fclose(f);\r
805 return 1;\r
806 }\r
807 return 0;\r
808}\r
809\r
810char *emu_GetSaveFName(int load, int is_sram, int slot)\r
811{\r
812 static char saveFname[512];\r
813 char ext[16];\r
814\r
815 if (is_sram)\r
816 {\r
dd5fd477 817 romfname_ext(saveFname, (PicoAHW&1) ? "brm/" : "srm/", (PicoAHW&1) ? ".brm" : ".srm");\r
f013066e 818 if (load) {\r
819 if (try_ropen_file(saveFname)) return saveFname;\r
820 // try in current dir..\r
dd5fd477 821 romfname_ext(saveFname, NULL, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r
f013066e 822 if (try_ropen_file(saveFname)) return saveFname;\r
823 return NULL; // give up\r
824 }\r
825 }\r
826 else\r
827 {\r
828 ext[0] = 0;\r
829 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
830 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
831\r
832 romfname_ext(saveFname, "mds/", ext);\r
833 if (load) {\r
834 if (try_ropen_file(saveFname)) return saveFname;\r
835 romfname_ext(saveFname, NULL, ext);\r
836 if (try_ropen_file(saveFname)) return saveFname;\r
837 if (currentConfig.EmuOpt & 8) {\r
838 ext[0] = 0;\r
839 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
840 strcat(ext, ".mds");\r
841\r
842 romfname_ext(saveFname, "mds/", ext);\r
843 if (try_ropen_file(saveFname)) return saveFname;\r
844 romfname_ext(saveFname, NULL, ext);\r
845 if (try_ropen_file(saveFname)) return saveFname;\r
846 }\r
847 return NULL;\r
848 }\r
849 }\r
850\r
851 return saveFname;\r
852}\r
853\r
854int emu_checkSaveFile(int slot)\r
855{\r
856 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
857}\r
858\r
859void emu_setSaveStateCbs(int gz)\r
860{\r
861 if (gz) {\r
862 areaRead = gzRead2;\r
863 areaWrite = gzWrite2;\r
864 areaEof = (areaeof *) gzeof;\r
865 areaSeek = (areaseek *) gzseek;\r
866 areaClose = (areaclose *) gzclose;\r
867 } else {\r
868 areaRead = (arearw *) fread;\r
869 areaWrite = (arearw *) fwrite;\r
870 areaEof = (areaeof *) feof;\r
871 areaSeek = (areaseek *) fseek;\r
872 areaClose = (areaclose *) fclose;\r
873 }\r
874}\r
875\r
876int emu_SaveLoadGame(int load, int sram)\r
877{\r
878 int ret = 0;\r
879 char *saveFname;\r
880\r
881 // make save filename\r
882 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
883 if (saveFname == NULL) {\r
884 if (!sram) {\r
885 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
886 emu_noticeMsgUpdated();\r
887 }\r
888 return -1;\r
889 }\r
890\r
891 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
892\r
11f4e722 893 if (sram)\r
894 {\r
f013066e 895 FILE *sramFile;\r
896 int sram_size;\r
897 unsigned char *sram_data;\r
898 int truncate = 1;\r
dd5fd477 899 if (PicoAHW & PAHW_MCD)\r
900 {\r
901 if (PicoOpt&POPT_EN_MCD_RAMCART) {\r
f013066e 902 sram_size = 0x12000;\r
903 sram_data = SRam.data;\r
904 if (sram_data)\r
905 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
906 } else {\r
907 sram_size = 0x2000;\r
908 sram_data = Pico_mcd->bram;\r
909 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
910 }\r
911 } else {\r
912 sram_size = SRam.end-SRam.start+1;\r
913 if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
914 sram_data = SRam.data;\r
915 }\r
916 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
917\r
dd5fd477 918 if (load)\r
919 {\r
f013066e 920 sramFile = fopen(saveFname, "rb");\r
921 if(!sramFile) return -1;\r
922 fread(sram_data, 1, sram_size, sramFile);\r
923 fclose(sramFile);\r
dd5fd477 924 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r
f013066e 925 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
926 } else {\r
927 // sram save needs some special processing\r
928 // see if we have anything to save\r
929 for (; sram_size > 0; sram_size--)\r
930 if (sram_data[sram_size-1]) break;\r
931\r
932 if (sram_size) {\r
933 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
934 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
935 if (!sramFile) return -1;\r
936 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
937 ret = (ret != sram_size) ? -1 : 0;\r
938 fclose(sramFile);\r
939#ifndef NO_SYNC\r
940 sync();\r
941#endif\r
942 }\r
943 }\r
944 return ret;\r
945 }\r
946 else\r
947 {\r
948 void *PmovFile = NULL;\r
11f4e722 949 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)\r
950 {\r
f013066e 951 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
952 emu_setSaveStateCbs(1);\r
11f4e722 953 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
f013066e 954 }\r
955 }\r
956 else\r
957 {\r
958 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
959 emu_setSaveStateCbs(0);\r
960 }\r
961 }\r
962 if(PmovFile) {\r
963 ret = PmovState(load ? 6 : 5, PmovFile);\r
964 areaClose(PmovFile);\r
965 PmovFile = 0;\r
966 if (load) Pico.m.dirtyPal=1;\r
967#ifndef NO_SYNC\r
968 else sync();\r
969#endif\r
970 }\r
971 else ret = -1;\r
972 if (!ret)\r
8fc24df1 973 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
f013066e 974 else\r
975 {\r
8fc24df1 976 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
f013066e 977 ret = -1;\r
978 }\r
979\r
980 emu_noticeMsgUpdated();\r
981 return ret;\r
982 }\r
983}\r
8e708f92 984\r
8a091e48 985void emu_changeFastForward(int set_on)\r
986{\r
987 static void *set_PsndOut = NULL;\r
988 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
989\r
990 if (set_on && !is_on) {\r
991 set_PsndOut = PsndOut;\r
992 set_Frameskip = currentConfig.Frameskip;\r
993 set_EmuOpt = currentConfig.EmuOpt;\r
994 PsndOut = NULL;\r
995 currentConfig.Frameskip = 8;\r
996 currentConfig.EmuOpt &= ~4;\r
997 currentConfig.EmuOpt |= 0x40000;\r
998 is_on = 1;\r
999 strcpy(noticeMsg, "FAST FORWARD ");\r
1000 emu_noticeMsgUpdated();\r
1001 }\r
1002 else if (!set_on && is_on) {\r
1003 PsndOut = set_PsndOut;\r
1004 currentConfig.Frameskip = set_Frameskip;\r
1005 currentConfig.EmuOpt = set_EmuOpt;\r
1006 PsndRerate(1);\r
1007 is_on = 0;\r
1008 }\r
1009}\r
1010\r
1011void emu_RunEventsPico(unsigned int events)\r
1012{\r
1013 if (events & (1 << 3)) {\r
1014 pico_inp_mode++;\r
1015 if (pico_inp_mode > 2) pico_inp_mode = 0;\r
1016 switch (pico_inp_mode) {\r
1017 case 2: strcpy(noticeMsg, "Input: Pen on Pad "); break;\r
1018 case 1: strcpy(noticeMsg, "Input: Pen on Storyware"); break;\r
1019 case 0: strcpy(noticeMsg, "Input: Joytick ");\r
1020 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
1021 break;\r
1022 }\r
1023 emu_noticeMsgUpdated();\r
1024 }\r
1025 if (events & (1 << 4)) {\r
1026 PicoPicohw.page--;\r
1027 if (PicoPicohw.page < 0) PicoPicohw.page = 0;\r
1028 sprintf(noticeMsg, "Page %i ", PicoPicohw.page);\r
1029 emu_noticeMsgUpdated();\r
1030 }\r
1031 if (events & (1 << 5)) {\r
1032 PicoPicohw.page++;\r
1033 if (PicoPicohw.page > 6) PicoPicohw.page = 6;\r
1034 sprintf(noticeMsg, "Page %i ", PicoPicohw.page);\r
1035 emu_noticeMsgUpdated();\r
1036 }\r
1037}\r
1038\r
6589c840 1039void emu_DoTurbo(int *pad, int acts)\r
1040{\r
1041 static int turbo_pad = 0;\r
1042 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1043 int inc = currentConfig.turbo_rate * 2;\r
1044\r
1045 if (acts & 0x1000) {\r
1046 turbo_cnt[0] += inc;\r
1047 if (turbo_cnt[0] >= 60)\r
1048 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1049 }\r
1050 if (acts & 0x2000) {\r
1051 turbo_cnt[1] += inc;\r
1052 if (turbo_cnt[1] >= 60)\r
1053 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1054 }\r
1055 if (acts & 0x4000) {\r
1056 turbo_cnt[2] += inc;\r
1057 if (turbo_cnt[2] >= 60)\r
1058 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1059 }\r
1060 *pad |= turbo_pad & (acts >> 8);\r
1061}\r
8a091e48 1062\r
PicoDrive's frontend in a lib