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readme and textfilter updated for uiq3
[picodrive.git] / platform / common / emu.c
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ea8c405f 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
58c86d00 17#include "config.h"\r
3a3947cd 18#include "common.h"\r
ea8c405f 19\r
20#include <Pico/PicoInt.h>\r
21#include <Pico/Patch.h>\r
9037e45d 22#include <Pico/cd/cue.h>\r
ea8c405f 23#include <zlib/zlib.h>\r
24\r
ea8c405f 25\r
c46ffd31 26char *PicoConfigFile = "config.cfg";\r
58c86d00 27currentConfig_t currentConfig, defaultConfig;\r
eacee137 28int rom_loaded = 0;\r
ca482e5d 29char noticeMsg[64] = { 0, };\r
ea8c405f 30int state_slot = 0;\r
31int config_slot = 0, config_slot_current = 0;\r
ca482e5d 32char loadedRomFName[512] = { 0, };\r
bdec53c9 33int kb_combo_keys = 0, kb_combo_acts = 0; // keys and actions which need button combos\r
c060a9ab 34int pico_inp_mode = 0;\r
ea8c405f 35\r
36unsigned char *movie_data = NULL;\r
37static int movie_size = 0;\r
38\r
39// provided by platform code:\r
ea8c405f 40extern void emu_noticeMsgUpdated(void);\r
ca482e5d 41extern int emu_getMainDir(char *dst, int len);\r
ea8c405f 42extern void menu_romload_prepare(const char *rom_name);\r
43extern void menu_romload_end(void);\r
44\r
45\r
46// utilities\r
47static void strlwr_(char* string)\r
48{\r
49 while ( (*string++ = (char)tolower(*string)) );\r
50}\r
51\r
ca482e5d 52static int try_rfn_cut(char *fname)\r
ea8c405f 53{\r
54 FILE *tmp;\r
55 char *p;\r
56\r
ca482e5d 57 p = fname + strlen(fname) - 1;\r
58 for (; p > fname; p--)\r
ea8c405f 59 if (*p == '.') break;\r
60 *p = 0;\r
61\r
ca482e5d 62 if((tmp = fopen(fname, "rb"))) {\r
ea8c405f 63 fclose(tmp);\r
64 return 1;\r
65 }\r
66 return 0;\r
67}\r
68\r
69static void get_ext(char *file, char *ext)\r
70{\r
71 char *p;\r
72\r
73 p = file + strlen(file) - 4;\r
74 if (p < file) p = file;\r
75 strncpy(ext, p, 4);\r
76 ext[4] = 0;\r
77 strlwr_(ext);\r
78}\r
79\r
2d2247c2 80char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r
81char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r
ea8c405f 82char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
83\r
84int emu_findBios(int region, char **bios_file)\r
85{\r
86 static char bios_path[1024];\r
87 int i, count;\r
88 char **files;\r
89 FILE *f = NULL;\r
90\r
91 if (region == 4) { // US\r
92 files = biosfiles_us;\r
93 count = sizeof(biosfiles_us) / sizeof(char *);\r
94 } else if (region == 8) { // EU\r
95 files = biosfiles_eu;\r
96 count = sizeof(biosfiles_eu) / sizeof(char *);\r
97 } else if (region == 1 || region == 2) {\r
98 files = biosfiles_jp;\r
99 count = sizeof(biosfiles_jp) / sizeof(char *);\r
100 } else {\r
101 return 0;\r
102 }\r
103\r
104 for (i = 0; i < count; i++)\r
105 {\r
106 emu_getMainDir(bios_path, sizeof(bios_path));\r
107 strcat(bios_path, files[i]);\r
108 strcat(bios_path, ".bin");\r
109 f = fopen(bios_path, "rb");\r
110 if (f) break;\r
111\r
112 bios_path[strlen(bios_path) - 4] = 0;\r
113 strcat(bios_path, ".zip");\r
114 f = fopen(bios_path, "rb");\r
115 if (f) break;\r
116 }\r
117\r
118 if (f) {\r
119 lprintf("using bios: %s\n", bios_path);\r
120 fclose(f);\r
121 if (bios_file) *bios_file = bios_path;\r
122 return 1;\r
123 } else {\r
124 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
125 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
126 lprintf("%s\n", menuErrorMsg);\r
127 return 0;\r
128 }\r
129}\r
130\r
c6196c0f 131/* check if the name begins with BIOS name */\r
1ca2ea4f 132/*\r
c6196c0f 133static int emu_isBios(const char *name)\r
134{\r
135 int i;\r
136 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
137 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
138 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
139 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
140 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
141 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
142 return 0;\r
143}\r
1ca2ea4f 144*/\r
c6196c0f 145\r
1ca2ea4f 146static unsigned char id_header[0x100];\r
58c86d00 147\r
ca482e5d 148/* checks if fname points to valid MegaCD image\r
ea8c405f 149 * if so, checks for suitable BIOS */\r
ca482e5d 150int emu_cdCheck(int *pregion, char *fname_in)\r
ea8c405f 151{\r
152 unsigned char buf[32];\r
153 pm_file *cd_f;\r
9037e45d 154 int region = 4; // 1: Japan, 4: US, 8: Europe\r
ca482e5d 155 char ext[5], *fname = fname_in;\r
9037e45d 156 cue_track_type type = CT_UNKNOWN;\r
157 cue_data_t *cue_data = NULL;\r
b923ecbe 158\r
ca482e5d 159 get_ext(fname_in, ext);\r
9037e45d 160 if (strcasecmp(ext, ".cue") == 0) {\r
ca482e5d 161 cue_data = cue_parse(fname_in);\r
9037e45d 162 if (cue_data != NULL) {\r
163 fname = cue_data->tracks[1].fname;\r
164 type = cue_data->tracks[1].type;\r
165 }\r
f9f40f10 166 else\r
167 return -1;\r
9037e45d 168 }\r
169\r
170 cd_f = pm_open(fname);\r
171 if (cue_data != NULL)\r
172 cue_destroy(cue_data);\r
ea8c405f 173\r
f9f40f10 174 if (cd_f == NULL) return 0; // let the upper level handle this\r
ea8c405f 175\r
176 if (pm_read(buf, 32, cd_f) != 32) {\r
177 pm_close(cd_f);\r
f9f40f10 178 return -1;\r
ea8c405f 179 }\r
180\r
9037e45d 181 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {\r
182 if (type && type != CT_ISO)\r
183 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
184 type = CT_ISO; // Sega CD (ISO)\r
185 }\r
186 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {\r
187 if (type && type != CT_BIN)\r
188 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
189 type = CT_BIN; // Sega CD (BIN)\r
190 }\r
191\r
192 if (type == CT_UNKNOWN) {\r
ea8c405f 193 pm_close(cd_f);\r
194 return 0;\r
195 }\r
196\r
9037e45d 197 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);\r
1ca2ea4f 198 pm_read(id_header, sizeof(id_header), cd_f);\r
58c86d00 199\r
ea8c405f 200 /* it seems we have a CD image here. Try to detect region now.. */\r
9037e45d 201 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
ea8c405f 202 pm_read(buf, 1, cd_f);\r
203 pm_close(cd_f);\r
204\r
205 if (buf[0] == 0x64) region = 8; // EU\r
206 if (buf[0] == 0xa1) region = 1; // JAP\r
207\r
208 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
9037e45d 209 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
ea8c405f 210\r
211 if (pregion != NULL) *pregion = region;\r
212\r
213 return type;\r
214}\r
215\r
7a87643e 216static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r
58c86d00 217{\r
218 char *p = dest;\r
219 int i;\r
220\r
221 if (swab) swab = 1;\r
222\r
223 for (i = len - 1; i >= 0; i--)\r
224 {\r
225 if (src[i^swab] != ' ') break;\r
226 }\r
227 len = i + 1;\r
228\r
229 for (i = 0; i < len; i++)\r
230 {\r
231 unsigned char s = src[i^swab];\r
232 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
233 s != '[' && s != ']' && s != '\\')\r
234 {\r
235 *p++ = s;\r
236 }\r
237 else\r
238 {\r
239 sprintf(p, "\\%02x", s);\r
240 p += 3;\r
241 }\r
242 }\r
243\r
244 return p - dest;\r
245}\r
246\r
247char *emu_makeRomId(void)\r
248{\r
ca482e5d 249 static char id_string[3+0xe*3+0x3*3+0x30*3+3];\r
bdec53c9 250 int pos, swab = 1;\r
58c86d00 251\r
602133e1 252 if (PicoAHW & PAHW_MCD) {\r
bdec53c9 253 strcpy(id_string, "CD|");\r
254 swab = 0;\r
255 }\r
1ca2ea4f 256 else strcpy(id_string, "MD|");\r
58c86d00 257 pos = 3;\r
258\r
bdec53c9 259 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r
58c86d00 260 id_string[pos] = '|'; pos++;\r
bdec53c9 261 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r
58c86d00 262 id_string[pos] = '|'; pos++;\r
bdec53c9 263 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r
58c86d00 264 id_string[pos] = 0;\r
265\r
58c86d00 266 return id_string;\r
267}\r
268\r
ca482e5d 269// buffer must be at least 150 byte long\r
270void emu_getGameName(char *str150)\r
271{\r
272 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;\r
273 char *s, *d;\r
274\r
275 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name\r
276\r
277 for (s = d = str150 + 1; s < str150+ret; s++)\r
278 {\r
279 if (*s == 0) break;\r
280 if (*s != ' ' || d[-1] != ' ')\r
281 *d++ = *s;\r
282 }\r
283 *d = 0;\r
284}\r
285\r
286// note: this function might mangle rom_fname\r
287int emu_ReloadRom(char *rom_fname)\r
ea8c405f 288{\r
289 unsigned int rom_size = 0;\r
ca482e5d 290 char *used_rom_name = rom_fname;\r
eacee137 291 unsigned char *rom_data = NULL;\r
ea8c405f 292 char ext[5];\r
f9f40f10 293 pm_file *rom = NULL;\r
ea8c405f 294 int ret, cd_state, cd_region, cfg_loaded = 0;\r
295\r
ca482e5d 296 lprintf("emu_ReloadRom(%s)\n", rom_fname);\r
ea8c405f 297\r
ca482e5d 298 get_ext(rom_fname, ext);\r
ea8c405f 299\r
300 // detect wrong extensions\r
eacee137 301 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
f9f40f10 302 sprintf(menuErrorMsg, "Not a ROM/CD selected.");\r
ea8c405f 303 return 0;\r
304 }\r
305\r
306 PicoPatchUnload();\r
307\r
308 // check for movie file\r
eacee137 309 if (movie_data) {\r
ea8c405f 310 free(movie_data);\r
311 movie_data = 0;\r
312 }\r
2d2247c2 313 if (!strcmp(ext, ".gmv"))\r
314 {\r
ea8c405f 315 // check for both gmv and rom\r
316 int dummy;\r
ca482e5d 317 FILE *movie_file = fopen(rom_fname, "rb");\r
ea8c405f 318 if(!movie_file) {\r
319 sprintf(menuErrorMsg, "Failed to open movie.");\r
320 return 0;\r
321 }\r
322 fseek(movie_file, 0, SEEK_END);\r
323 movie_size = ftell(movie_file);\r
324 fseek(movie_file, 0, SEEK_SET);\r
325 if(movie_size < 64+3) {\r
326 sprintf(menuErrorMsg, "Invalid GMV file.");\r
327 fclose(movie_file);\r
328 return 0;\r
329 }\r
330 movie_data = malloc(movie_size);\r
331 if(movie_data == NULL) {\r
332 sprintf(menuErrorMsg, "low memory.");\r
333 fclose(movie_file);\r
334 return 0;\r
335 }\r
336 fread(movie_data, 1, movie_size, movie_file);\r
337 fclose(movie_file);\r
338 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
339 sprintf(menuErrorMsg, "Invalid GMV file.");\r
340 return 0;\r
341 }\r
ca482e5d 342 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
ea8c405f 343 if (!dummy) {\r
344 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
345 return 0;\r
346 }\r
ca482e5d 347 get_ext(rom_fname, ext);\r
ea8c405f 348 }\r
ca482e5d 349 else if (!strcmp(ext, ".pat"))\r
350 {\r
ea8c405f 351 int dummy;\r
ca482e5d 352 PicoPatchLoad(rom_fname);\r
353 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
ea8c405f 354 if (!dummy) {\r
355 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
356 return 0;\r
357 }\r
ca482e5d 358 get_ext(rom_fname, ext);\r
ea8c405f 359 }\r
360\r
ca482e5d 361 emu_shutdownMCD();\r
ea8c405f 362\r
363 // check for MegaCD image\r
ca482e5d 364 cd_state = emu_cdCheck(&cd_region, rom_fname);\r
f9f40f10 365 if (cd_state >= 0 && cd_state != CIT_NOT_CD)\r
ea8c405f 366 {\r
602133e1 367 PicoAHW |= PAHW_MCD;\r
ea8c405f 368 // valid CD image, check for BIOS..\r
369\r
370 // we need to have config loaded at this point\r
371 ret = emu_ReadConfig(1, 1);\r
372 if (!ret) emu_ReadConfig(0, 1);\r
373 cfg_loaded = 1;\r
374\r
375 if (PicoRegionOverride) {\r
376 cd_region = PicoRegionOverride;\r
377 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");\r
378 }\r
379 if (!emu_findBios(cd_region, &used_rom_name)) {\r
380 // bios_help() ?\r
602133e1 381 PicoAHW &= ~PAHW_MCD;\r
ea8c405f 382 return 0;\r
383 }\r
384\r
ea8c405f 385 get_ext(used_rom_name, ext);\r
386 }\r
387 else\r
388 {\r
602133e1 389 if (PicoAHW & PAHW_MCD) Stop_CD();\r
390 PicoAHW &= ~PAHW_MCD;\r
ea8c405f 391 }\r
392\r
393 rom = pm_open(used_rom_name);\r
eacee137 394 if (!rom) {\r
f9f40f10 395 sprintf(menuErrorMsg, "Failed to open ROM/CD image");\r
396 goto fail;\r
397 }\r
398\r
399 if (cd_state < 0) {\r
400 sprintf(menuErrorMsg, "Invalid CD image");\r
401 goto fail;\r
ea8c405f 402 }\r
403\r
4b167c12 404 menu_romload_prepare(used_rom_name); // also CD load\r
ea8c405f 405\r
eacee137 406 PicoCartUnload();\r
407 rom_loaded = 0;\r
ea8c405f 408\r
eacee137 409 if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
ea8c405f 410 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
411 lprintf("%s\n", menuErrorMsg);\r
f9f40f10 412 goto fail2;\r
ea8c405f 413 }\r
414 pm_close(rom);\r
f9f40f10 415 rom = NULL;\r
ea8c405f 416\r
417 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
eacee137 418 if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
ea8c405f 419 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
420 if (rom_data) free(rom_data);\r
ea8c405f 421 sprintf(menuErrorMsg, "Not a ROM selected.");\r
f9f40f10 422 goto fail2;\r
ea8c405f 423 }\r
424\r
425 // load config for this ROM (do this before insert to get correct region)\r
602133e1 426 if (!(PicoAHW & PAHW_MCD))\r
1ca2ea4f 427 memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r
ea8c405f 428 if (!cfg_loaded) {\r
429 ret = emu_ReadConfig(1, 1);\r
430 if (!ret) emu_ReadConfig(0, 1);\r
431 }\r
432\r
433 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
eacee137 434 if (PicoCartInsert(rom_data, rom_size)) {\r
ea8c405f 435 sprintf(menuErrorMsg, "Failed to load ROM.");\r
f9f40f10 436 goto fail2;\r
ea8c405f 437 }\r
438\r
ea8c405f 439 // insert CD if it was detected\r
b923ecbe 440 if (cd_state != CIT_NOT_CD) {\r
ca482e5d 441 ret = Insert_CD(rom_fname, cd_state);\r
ea8c405f 442 if (ret != 0) {\r
443 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
444 lprintf("%s\n", menuErrorMsg);\r
f9f40f10 445 goto fail2;\r
ea8c405f 446 }\r
447 }\r
448\r
4b167c12 449 menu_romload_end();\r
450\r
ea8c405f 451 if (PicoPatches) {\r
452 PicoPatchPrepare();\r
453 PicoPatchApply();\r
454 }\r
455\r
456 // additional movie stuff\r
f9f40f10 457 if (movie_data)\r
458 {\r
459 if (movie_data[0x14] == '6')\r
602133e1 460 PicoOpt |= POPT_6BTN_PAD; // 6 button pad\r
461 else PicoOpt &= ~POPT_6BTN_PAD;\r
2aa27095 462 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
f9f40f10 463 if (movie_data[0xF] >= 'A') {\r
464 if (movie_data[0x16] & 0x80) {\r
ea8c405f 465 PicoRegionOverride = 8;\r
466 } else {\r
467 PicoRegionOverride = 4;\r
468 }\r
1cb1584b 469 PicoReset();\r
ea8c405f 470 // TODO: bits 6 & 5\r
471 }\r
472 movie_data[0x18+30] = 0;\r
473 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
474 }\r
475 else\r
476 {\r
602133e1 477 PicoOpt &= ~POPT_DIS_VDP_FIFO;\r
f9f40f10 478 if (Pico.m.pal) {\r
ea8c405f 479 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
480 } else {\r
481 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
482 }\r
483 }\r
484 emu_noticeMsgUpdated();\r
485\r
486 // load SRAM for this ROM\r
ca482e5d 487 if (currentConfig.EmuOpt & EOPT_USE_SRAM)\r
ea8c405f 488 emu_SaveLoadGame(1, 1);\r
489\r
ca482e5d 490 strncpy(loadedRomFName, rom_fname, sizeof(loadedRomFName)-1);\r
491 loadedRomFName[sizeof(loadedRomFName)-1] = 0;\r
eacee137 492 rom_loaded = 1;\r
ea8c405f 493 return 1;\r
f9f40f10 494\r
495fail2:\r
496 menu_romload_end();\r
497fail:\r
498 if (rom != NULL) pm_close(rom);\r
499 return 0;\r
ea8c405f 500}\r
501\r
502\r
ca482e5d 503void emu_shutdownMCD(void)\r
504{\r
505 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)\r
506 Stop_CD();\r
507 PicoAHW &= ~PAHW_MCD;\r
508}\r
509\r
ea8c405f 510static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
511{\r
512 char *p;\r
513 int prefix_len = 0;\r
514\r
515 // make save filename\r
ca482e5d 516 p = loadedRomFName+strlen(loadedRomFName)-1;\r
517 for (; p >= loadedRomFName && *p != PATH_SEP_C; p--); p++;\r
ea8c405f 518 *dst = 0;\r
519 if (prefix) {\r
ca482e5d 520 int len = emu_getMainDir(dst, 512);\r
521 strcpy(dst + len, prefix);\r
522 prefix_len = len + strlen(prefix);\r
ea8c405f 523 }\r
ca482e5d 524#ifdef UIQ3\r
525 else p = loadedRomFName; // backward compatibility\r
526#endif\r
ea8c405f 527 strncpy(dst + prefix_len, p, 511-prefix_len);\r
528 dst[511-8] = 0;\r
529 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
530 if (ext) strcat(dst, ext);\r
531}\r
532\r
533\r
08fe8094 534static void make_config_cfg(char *cfg)\r
535{\r
ca482e5d 536 int len;\r
537 len = emu_getMainDir(cfg, 512);\r
538 strncpy(cfg + len, PicoConfigFile, 512-6-1-len);\r
08fe8094 539 if (config_slot != 0)\r
540 {\r
541 char *p = strrchr(cfg, '.');\r
542 if (p == NULL) p = cfg + strlen(cfg);\r
543 sprintf(p, ".%i.cfg", config_slot);\r
544 }\r
545 cfg[511] = 0;\r
546}\r
547\r
ca482e5d 548void emu_packConfig(void)\r
549{\r
550 currentConfig.s_PicoOpt = PicoOpt;\r
551 currentConfig.s_PsndRate = PsndRate;\r
552 currentConfig.s_PicoRegion = PicoRegionOverride;\r
553 currentConfig.s_PicoAutoRgnOrder = PicoAutoRgnOrder;\r
554 currentConfig.s_PicoCDBuffers = PicoCDBuffers;\r
555}\r
556\r
557void emu_unpackConfig(void)\r
558{\r
559 PicoOpt = currentConfig.s_PicoOpt;\r
560 PsndRate = currentConfig.s_PsndRate;\r
561 PicoRegionOverride = currentConfig.s_PicoRegion;\r
562 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
563 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
564}\r
565\r
566static void emu_setDefaultConfig(void)\r
567{\r
568 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
569 emu_unpackConfig();\r
570}\r
571\r
572\r
ea8c405f 573int emu_ReadConfig(int game, int no_defaults)\r
574{\r
58c86d00 575 char cfg[512];\r
58c86d00 576 int ret;\r
ea8c405f 577\r
578 if (!game)\r
579 {\r
580 if (!no_defaults)\r
ea8c405f 581 emu_setDefaultConfig();\r
08fe8094 582 make_config_cfg(cfg);\r
58c86d00 583 ret = config_readsect(cfg, NULL);\r
ea8c405f 584 }\r
58c86d00 585 else\r
586 {\r
1ca2ea4f 587 char *sect = emu_makeRomId();\r
ea8c405f 588\r
58c86d00 589 // try new .cfg way\r
590 if (config_slot != 0)\r
591 sprintf(cfg, "game.%i.cfg", config_slot);\r
592 else strcpy(cfg, "game.cfg");\r
1ca2ea4f 593\r
594 ret = -1;\r
08fe8094 595 if (config_havesect(cfg, sect))\r
596 {\r
597 // read user's config\r
7b802576 598 int vol = currentConfig.volume;\r
1ca2ea4f 599 emu_setDefaultConfig();\r
600 ret = config_readsect(cfg, sect);\r
7b802576 601 currentConfig.volume = vol; // make vol global (bah)\r
1ca2ea4f 602 }\r
a39b7867 603 else\r
08fe8094 604 {\r
605 // read global config, and apply game_def.cfg on top\r
606 make_config_cfg(cfg);\r
607 config_readsect(cfg, NULL);\r
608 ret = config_readsect("game_def.cfg", sect);\r
609 }\r
58c86d00 610\r
ca482e5d 611 if (ret == 0)\r
58c86d00 612 {\r
1ca2ea4f 613 lprintf("loaded cfg from sect \"%s\"\n", sect);\r
58c86d00 614 }\r
ea8c405f 615 }\r
58c86d00 616\r
ea8c405f 617 // some sanity checks\r
618 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
2445b7cb 619#ifdef PSP\r
620 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
6fc57144 621 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
2445b7cb 622#else\r
ea8c405f 623 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
2445b7cb 624#endif\r
ea8c405f 625 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
9839d126 626#ifdef __GP2X__\r
ea8c405f 627 // if volume keys are unbound, bind them to volume control\r
628 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
629 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
630 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
631 }\r
9839d126 632#endif\r
58c86d00 633 if (ret == 0) config_slot_current = config_slot;\r
634 return (ret == 0);\r
ea8c405f 635}\r
636\r
637\r
58c86d00 638int emu_WriteConfig(int is_game)\r
ea8c405f 639{\r
58c86d00 640 char cfg[512], *game_sect = NULL;\r
641 int ret, write_lrom = 0;\r
ea8c405f 642\r
58c86d00 643 if (!is_game)\r
ea8c405f 644 {\r
ca482e5d 645 make_config_cfg(cfg);\r
58c86d00 646 write_lrom = 1;\r
ea8c405f 647 } else {\r
648 if (config_slot != 0)\r
58c86d00 649 sprintf(cfg, "game.%i.cfg", config_slot);\r
650 else strcpy(cfg, "game.cfg");\r
651 game_sect = emu_makeRomId();\r
1ca2ea4f 652 lprintf("emu_WriteConfig: sect \"%s\"\n", game_sect);\r
ea8c405f 653 }\r
654\r
655 lprintf("emu_WriteConfig: %s ", cfg);\r
58c86d00 656 ret = config_writesect(cfg, game_sect);\r
1ca2ea4f 657 if (write_lrom) config_writelrom(cfg);\r
ea8c405f 658#ifndef NO_SYNC\r
58c86d00 659 sync();\r
ea8c405f 660#endif\r
58c86d00 661 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
ea8c405f 662\r
58c86d00 663 if (ret == 0) config_slot_current = config_slot;\r
664 return ret == 0;\r
ea8c405f 665}\r
666\r
667\r
ca482e5d 668#ifndef UIQ3\r
ea8c405f 669void emu_textOut8(int x, int y, const char *text)\r
670{\r
671 int i,l,len=strlen(text);\r
672 unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
673\r
674 /* always using built-in font */\r
675 for (i = 0; i < len; i++)\r
676 {\r
677 for (l=0;l<8;l++)\r
678 {\r
679 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
680 if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;\r
681 if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;\r
682 if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;\r
683 if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;\r
684 if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;\r
685 if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;\r
686 if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;\r
687 if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;\r
688 }\r
689 screen += 8;\r
690 }\r
691}\r
692\r
693void emu_textOut16(int x, int y, const char *text)\r
694{\r
695 int i,l,len=strlen(text);\r
696 unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
697\r
698 for (i = 0; i < len; i++)\r
699 {\r
700 for (l=0;l<8;l++)\r
701 {\r
702 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
703 if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;\r
704 if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;\r
705 if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;\r
706 if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;\r
707 if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;\r
708 if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;\r
709 if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;\r
710 if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;\r
711 }\r
712 screen += 8;\r
713 }\r
714}\r
ca482e5d 715#endif\r
ea8c405f 716\r
6fc57144 717#ifdef PSP\r
718#define MAX_COMBO_KEY 23\r
719#else\r
720#define MAX_COMBO_KEY 31\r
721#endif\r
722\r
bdec53c9 723void emu_findKeyBindCombos(void)\r
724{\r
725 int act, u;\r
726\r
727 // find out which keys and actions are combos\r
728 kb_combo_keys = kb_combo_acts = 0;\r
729 for (act = 0; act < 32; act++)\r
730 {\r
731 int keyc = 0, keyc2 = 0;\r
732 if (act == 16 || act == 17) continue; // player2 flag\r
733 if (act > 17)\r
734 {\r
6fc57144 735 for (u = 0; u <= MAX_COMBO_KEY; u++)\r
bdec53c9 736 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
737 }\r
738 else\r
739 {\r
6fc57144 740 for (u = 0; u <= MAX_COMBO_KEY; u++)\r
bdec53c9 741 if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1\r
742 (currentConfig.KeyBinds[u] & (1 << act))) keyc++;\r
6fc57144 743 for (u = 0; u <= MAX_COMBO_KEY; u++)\r
bdec53c9 744 if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2\r
745 (currentConfig.KeyBinds[u] & (1 << act))) keyc2++;\r
746 if (keyc2 > keyc) keyc = keyc2;\r
747 }\r
748 if (keyc > 1)\r
749 {\r
750 // loop again and mark those keys and actions as combo\r
6fc57144 751 for (u = 0; u <= MAX_COMBO_KEY; u++)\r
bdec53c9 752 {\r
753 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
754 kb_combo_keys |= 1 << u;\r
755 kb_combo_acts |= 1 << act;\r
756 }\r
757 }\r
758 }\r
759 }\r
760\r
761 // printf("combo keys/acts: %08x %08x\n", kb_combo_keys, kb_combo_acts);\r
762}\r
763\r
ea8c405f 764\r
765void emu_updateMovie(void)\r
766{\r
767 int offs = Pico.m.frame_count*3 + 0x40;\r
768 if (offs+3 > movie_size) {\r
769 free(movie_data);\r
770 movie_data = 0;\r
771 strcpy(noticeMsg, "END OF MOVIE.");\r
772 lprintf("END OF MOVIE.\n");\r
773 emu_noticeMsgUpdated();\r
774 } else {\r
775 // MXYZ SACB RLDU\r
776 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
777 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
778 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
779 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
780 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
781 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
782 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
783 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
784 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
785 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
786 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
787 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
788 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
789 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
790 }\r
791}\r
792\r
793\r
794static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
795{\r
796 return gzread(file, p, _n);\r
797}\r
798\r
799\r
800static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
801{\r
802 return gzwrite(file, p, _n);\r
803}\r
804\r
805static int try_ropen_file(const char *fname)\r
806{\r
807 FILE *f;\r
808\r
809 f = fopen(fname, "rb");\r
810 if (f) {\r
811 fclose(f);\r
812 return 1;\r
813 }\r
814 return 0;\r
815}\r
816\r
817char *emu_GetSaveFName(int load, int is_sram, int slot)\r
818{\r
819 static char saveFname[512];\r
820 char ext[16];\r
821\r
822 if (is_sram)\r
823 {\r
ca482e5d 824 romfname_ext(saveFname, (PicoAHW&1) ? "brm"PATH_SEP : "srm"PATH_SEP, (PicoAHW&1) ? ".brm" : ".srm");\r
ea8c405f 825 if (load) {\r
826 if (try_ropen_file(saveFname)) return saveFname;\r
827 // try in current dir..\r
602133e1 828 romfname_ext(saveFname, NULL, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r
ea8c405f 829 if (try_ropen_file(saveFname)) return saveFname;\r
830 return NULL; // give up\r
831 }\r
832 }\r
833 else\r
834 {\r
835 ext[0] = 0;\r
836 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
ca482e5d 837 strcat(ext, (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds");\r
ea8c405f 838\r
ca482e5d 839 romfname_ext(saveFname, "mds" PATH_SEP, ext);\r
ea8c405f 840 if (load) {\r
841 if (try_ropen_file(saveFname)) return saveFname;\r
842 romfname_ext(saveFname, NULL, ext);\r
843 if (try_ropen_file(saveFname)) return saveFname;\r
ca482e5d 844 // no gzipped states, search for non-gzipped\r
845 if (currentConfig.EmuOpt & EOPT_GZIP_SAVES)\r
846 {\r
ea8c405f 847 ext[0] = 0;\r
848 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
849 strcat(ext, ".mds");\r
850\r
ca482e5d 851 romfname_ext(saveFname, "mds"PATH_SEP, ext);\r
ea8c405f 852 if (try_ropen_file(saveFname)) return saveFname;\r
853 romfname_ext(saveFname, NULL, ext);\r
854 if (try_ropen_file(saveFname)) return saveFname;\r
855 }\r
856 return NULL;\r
857 }\r
858 }\r
859\r
860 return saveFname;\r
861}\r
862\r
863int emu_checkSaveFile(int slot)\r
864{\r
865 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
866}\r
867\r
868void emu_setSaveStateCbs(int gz)\r
869{\r
870 if (gz) {\r
871 areaRead = gzRead2;\r
872 areaWrite = gzWrite2;\r
873 areaEof = (areaeof *) gzeof;\r
874 areaSeek = (areaseek *) gzseek;\r
875 areaClose = (areaclose *) gzclose;\r
876 } else {\r
877 areaRead = (arearw *) fread;\r
878 areaWrite = (arearw *) fwrite;\r
879 areaEof = (areaeof *) feof;\r
880 areaSeek = (areaseek *) fseek;\r
881 areaClose = (areaclose *) fclose;\r
882 }\r
883}\r
884\r
885int emu_SaveLoadGame(int load, int sram)\r
886{\r
887 int ret = 0;\r
888 char *saveFname;\r
889\r
890 // make save filename\r
891 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
892 if (saveFname == NULL) {\r
893 if (!sram) {\r
894 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
895 emu_noticeMsgUpdated();\r
896 }\r
897 return -1;\r
898 }\r
899\r
900 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
901\r
da42200b 902 if (sram)\r
903 {\r
ea8c405f 904 FILE *sramFile;\r
905 int sram_size;\r
906 unsigned char *sram_data;\r
907 int truncate = 1;\r
602133e1 908 if (PicoAHW & PAHW_MCD)\r
909 {\r
910 if (PicoOpt&POPT_EN_MCD_RAMCART) {\r
ea8c405f 911 sram_size = 0x12000;\r
912 sram_data = SRam.data;\r
913 if (sram_data)\r
914 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
915 } else {\r
916 sram_size = 0x2000;\r
917 sram_data = Pico_mcd->bram;\r
918 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
919 }\r
920 } else {\r
921 sram_size = SRam.end-SRam.start+1;\r
922 if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
923 sram_data = SRam.data;\r
924 }\r
925 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
926\r
602133e1 927 if (load)\r
928 {\r
ea8c405f 929 sramFile = fopen(saveFname, "rb");\r
930 if(!sramFile) return -1;\r
931 fread(sram_data, 1, sram_size, sramFile);\r
932 fclose(sramFile);\r
602133e1 933 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r
ea8c405f 934 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
935 } else {\r
936 // sram save needs some special processing\r
937 // see if we have anything to save\r
938 for (; sram_size > 0; sram_size--)\r
939 if (sram_data[sram_size-1]) break;\r
940\r
941 if (sram_size) {\r
942 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
943 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
944 if (!sramFile) return -1;\r
945 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
946 ret = (ret != sram_size) ? -1 : 0;\r
947 fclose(sramFile);\r
948#ifndef NO_SYNC\r
949 sync();\r
950#endif\r
951 }\r
952 }\r
953 return ret;\r
954 }\r
955 else\r
956 {\r
957 void *PmovFile = NULL;\r
da42200b 958 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)\r
959 {\r
ea8c405f 960 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
961 emu_setSaveStateCbs(1);\r
da42200b 962 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
ea8c405f 963 }\r
964 }\r
965 else\r
966 {\r
967 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
968 emu_setSaveStateCbs(0);\r
969 }\r
970 }\r
971 if(PmovFile) {\r
972 ret = PmovState(load ? 6 : 5, PmovFile);\r
973 areaClose(PmovFile);\r
974 PmovFile = 0;\r
975 if (load) Pico.m.dirtyPal=1;\r
976#ifndef NO_SYNC\r
977 else sync();\r
978#endif\r
979 }\r
980 else ret = -1;\r
981 if (!ret)\r
2b1f0e25 982 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
ea8c405f 983 else\r
984 {\r
2b1f0e25 985 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
ea8c405f 986 ret = -1;\r
987 }\r
988\r
989 emu_noticeMsgUpdated();\r
990 return ret;\r
991 }\r
992}\r
bdec53c9 993\r
c060a9ab 994void emu_changeFastForward(int set_on)\r
995{\r
996 static void *set_PsndOut = NULL;\r
997 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
998\r
999 if (set_on && !is_on) {\r
1000 set_PsndOut = PsndOut;\r
1001 set_Frameskip = currentConfig.Frameskip;\r
1002 set_EmuOpt = currentConfig.EmuOpt;\r
1003 PsndOut = NULL;\r
1004 currentConfig.Frameskip = 8;\r
1005 currentConfig.EmuOpt &= ~4;\r
1006 currentConfig.EmuOpt |= 0x40000;\r
1007 is_on = 1;\r
1008 strcpy(noticeMsg, "FAST FORWARD ");\r
1009 emu_noticeMsgUpdated();\r
1010 }\r
1011 else if (!set_on && is_on) {\r
1012 PsndOut = set_PsndOut;\r
1013 currentConfig.Frameskip = set_Frameskip;\r
1014 currentConfig.EmuOpt = set_EmuOpt;\r
1015 PsndRerate(1);\r
1016 is_on = 0;\r
1017 }\r
1018}\r
1019\r
1020void emu_RunEventsPico(unsigned int events)\r
1021{\r
1022 if (events & (1 << 3)) {\r
1023 pico_inp_mode++;\r
1024 if (pico_inp_mode > 2) pico_inp_mode = 0;\r
1025 switch (pico_inp_mode) {\r
1026 case 2: strcpy(noticeMsg, "Input: Pen on Pad "); break;\r
1027 case 1: strcpy(noticeMsg, "Input: Pen on Storyware"); break;\r
1028 case 0: strcpy(noticeMsg, "Input: Joytick ");\r
1029 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
1030 break;\r
1031 }\r
1032 emu_noticeMsgUpdated();\r
1033 }\r
1034 if (events & (1 << 4)) {\r
1035 PicoPicohw.page--;\r
1036 if (PicoPicohw.page < 0) PicoPicohw.page = 0;\r
1037 sprintf(noticeMsg, "Page %i ", PicoPicohw.page);\r
1038 emu_noticeMsgUpdated();\r
1039 }\r
1040 if (events & (1 << 5)) {\r
1041 PicoPicohw.page++;\r
1042 if (PicoPicohw.page > 6) PicoPicohw.page = 6;\r
1043 sprintf(noticeMsg, "Page %i ", PicoPicohw.page);\r
1044 emu_noticeMsgUpdated();\r
1045 }\r
1046}\r
1047\r
f0f0d2df 1048void emu_DoTurbo(int *pad, int acts)\r
1049{\r
1050 static int turbo_pad = 0;\r
1051 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1052 int inc = currentConfig.turbo_rate * 2;\r
1053\r
1054 if (acts & 0x1000) {\r
1055 turbo_cnt[0] += inc;\r
1056 if (turbo_cnt[0] >= 60)\r
1057 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1058 }\r
1059 if (acts & 0x2000) {\r
1060 turbo_cnt[1] += inc;\r
1061 if (turbo_cnt[1] >= 60)\r
1062 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1063 }\r
1064 if (acts & 0x4000) {\r
1065 turbo_cnt[2] += inc;\r
1066 if (turbo_cnt[2] >= 60)\r
1067 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1068 }\r
1069 *pad |= turbo_pad & (acts >> 8);\r
1070}\r
c060a9ab 1071\r
fast MegaDrive/MegaCD/32X emulator