| 1 | // (c) Copyright 2006-2009 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 <stdarg.h>\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 |
| 17 | #include "config.h"\r |
| 18 | #include "plat.h"\r |
| 19 | #include "input.h"\r |
| 20 | #include "posix.h"\r |
| 21 | \r |
| 22 | #include <pico/pico_int.h>\r |
| 23 | #include <pico/patch.h>\r |
| 24 | #include <pico/cd/cue.h>\r |
| 25 | \r |
| 26 | \r |
| 27 | #define STATUS_MSG_TIMEOUT 2000\r |
| 28 | \r |
| 29 | void *g_screen_ptr;\r |
| 30 | \r |
| 31 | #if !SCREEN_SIZE_FIXED\r |
| 32 | int g_screen_width = SCREEN_WIDTH;\r |
| 33 | int g_screen_height = SCREEN_HEIGHT;\r |
| 34 | #endif\r |
| 35 | \r |
| 36 | char *PicoConfigFile = "config.cfg";\r |
| 37 | currentConfig_t currentConfig, defaultConfig;\r |
| 38 | int state_slot = 0;\r |
| 39 | int config_slot = 0, config_slot_current = 0;\r |
| 40 | int pico_pen_x = 320/2, pico_pen_y = 240/2;\r |
| 41 | int pico_inp_mode = 0;\r |
| 42 | int engineState = PGS_Menu;\r |
| 43 | \r |
| 44 | /* TODO: len checking */\r |
| 45 | char rom_fname_reload[512] = { 0, };\r |
| 46 | char rom_fname_loaded[512] = { 0, };\r |
| 47 | int rom_loaded = 0;\r |
| 48 | int reset_timing = 0;\r |
| 49 | static unsigned int notice_msg_time; /* when started showing */\r |
| 50 | static char noticeMsg[40];\r |
| 51 | \r |
| 52 | unsigned char *movie_data = NULL;\r |
| 53 | static int movie_size = 0;\r |
| 54 | \r |
| 55 | \r |
| 56 | /* don't use tolower() for easy old glibc binary compatibility */\r |
| 57 | static void strlwr_(char *string)\r |
| 58 | {\r |
| 59 | char *p;\r |
| 60 | for (p = string; *p; p++)\r |
| 61 | if ('A' <= *p && *p <= 'Z')\r |
| 62 | *p += 'a' - 'A';\r |
| 63 | }\r |
| 64 | \r |
| 65 | static int try_rfn_cut(char *fname)\r |
| 66 | {\r |
| 67 | FILE *tmp;\r |
| 68 | char *p;\r |
| 69 | \r |
| 70 | p = fname + strlen(fname) - 1;\r |
| 71 | for (; p > fname; p--)\r |
| 72 | if (*p == '.') break;\r |
| 73 | *p = 0;\r |
| 74 | \r |
| 75 | if((tmp = fopen(fname, "rb"))) {\r |
| 76 | fclose(tmp);\r |
| 77 | return 1;\r |
| 78 | }\r |
| 79 | return 0;\r |
| 80 | }\r |
| 81 | \r |
| 82 | static void get_ext(const char *file, char *ext)\r |
| 83 | {\r |
| 84 | const char *p;\r |
| 85 | \r |
| 86 | p = file + strlen(file) - 4;\r |
| 87 | if (p < file) p = file;\r |
| 88 | strncpy(ext, p, 4);\r |
| 89 | ext[4] = 0;\r |
| 90 | strlwr_(ext);\r |
| 91 | }\r |
| 92 | \r |
| 93 | void emu_status_msg(const char *format, ...)\r |
| 94 | {\r |
| 95 | va_list vl;\r |
| 96 | int ret;\r |
| 97 | \r |
| 98 | va_start(vl, format);\r |
| 99 | ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);\r |
| 100 | va_end(vl);\r |
| 101 | \r |
| 102 | /* be sure old text gets overwritten */\r |
| 103 | for (; ret < 28; ret++)\r |
| 104 | noticeMsg[ret] = ' ';\r |
| 105 | noticeMsg[ret] = 0;\r |
| 106 | \r |
| 107 | notice_msg_time = plat_get_ticks_ms();\r |
| 108 | }\r |
| 109 | \r |
| 110 | static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r |
| 111 | static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r |
| 112 | static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r |
| 113 | \r |
| 114 | static int find_bios(int region, char **bios_file)\r |
| 115 | {\r |
| 116 | static char bios_path[1024];\r |
| 117 | int i, count;\r |
| 118 | const char * const *files;\r |
| 119 | FILE *f = NULL;\r |
| 120 | \r |
| 121 | if (region == 4) { // US\r |
| 122 | files = biosfiles_us;\r |
| 123 | count = sizeof(biosfiles_us) / sizeof(char *);\r |
| 124 | } else if (region == 8) { // EU\r |
| 125 | files = biosfiles_eu;\r |
| 126 | count = sizeof(biosfiles_eu) / sizeof(char *);\r |
| 127 | } else if (region == 1 || region == 2) {\r |
| 128 | files = biosfiles_jp;\r |
| 129 | count = sizeof(biosfiles_jp) / sizeof(char *);\r |
| 130 | } else {\r |
| 131 | return 0;\r |
| 132 | }\r |
| 133 | \r |
| 134 | for (i = 0; i < count; i++)\r |
| 135 | {\r |
| 136 | emu_make_path(bios_path, files[i], sizeof(bios_path) - 4);\r |
| 137 | strcat(bios_path, ".bin");\r |
| 138 | f = fopen(bios_path, "rb");\r |
| 139 | if (f) break;\r |
| 140 | \r |
| 141 | bios_path[strlen(bios_path) - 4] = 0;\r |
| 142 | strcat(bios_path, ".zip");\r |
| 143 | f = fopen(bios_path, "rb");\r |
| 144 | if (f) break;\r |
| 145 | }\r |
| 146 | \r |
| 147 | if (f) {\r |
| 148 | lprintf("using bios: %s\n", bios_path);\r |
| 149 | fclose(f);\r |
| 150 | if (bios_file) *bios_file = bios_path;\r |
| 151 | return 1;\r |
| 152 | } else {\r |
| 153 | sprintf(bios_path, "no %s BIOS files found, read docs",\r |
| 154 | region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r |
| 155 | me_update_msg(bios_path);\r |
| 156 | return 0;\r |
| 157 | }\r |
| 158 | }\r |
| 159 | \r |
| 160 | /* check if the name begins with BIOS name */\r |
| 161 | /*\r |
| 162 | static int emu_isBios(const char *name)\r |
| 163 | {\r |
| 164 | int i;\r |
| 165 | for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r |
| 166 | if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r |
| 167 | for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r |
| 168 | if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r |
| 169 | for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r |
| 170 | if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r |
| 171 | return 0;\r |
| 172 | }\r |
| 173 | */\r |
| 174 | \r |
| 175 | static unsigned char id_header[0x100];\r |
| 176 | \r |
| 177 | /* checks if fname points to valid MegaCD image */\r |
| 178 | static int emu_cd_check(int *pregion, const char *fname_in)\r |
| 179 | {\r |
| 180 | const char *fname = fname_in;\r |
| 181 | unsigned char buf[32];\r |
| 182 | pm_file *cd_f;\r |
| 183 | int region = 4; // 1: Japan, 4: US, 8: Europe\r |
| 184 | char ext[5];\r |
| 185 | cue_track_type type = CT_UNKNOWN;\r |
| 186 | cue_data_t *cue_data = NULL;\r |
| 187 | \r |
| 188 | get_ext(fname_in, ext);\r |
| 189 | if (strcasecmp(ext, ".cue") == 0) {\r |
| 190 | cue_data = cue_parse(fname_in);\r |
| 191 | if (cue_data != NULL) {\r |
| 192 | fname = cue_data->tracks[1].fname;\r |
| 193 | type = cue_data->tracks[1].type;\r |
| 194 | }\r |
| 195 | else\r |
| 196 | return -1;\r |
| 197 | }\r |
| 198 | \r |
| 199 | cd_f = pm_open(fname);\r |
| 200 | if (cue_data != NULL)\r |
| 201 | cue_destroy(cue_data);\r |
| 202 | \r |
| 203 | if (cd_f == NULL) return 0; // let the upper level handle this\r |
| 204 | \r |
| 205 | if (pm_read(buf, 32, cd_f) != 32) {\r |
| 206 | pm_close(cd_f);\r |
| 207 | return -1;\r |
| 208 | }\r |
| 209 | \r |
| 210 | if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {\r |
| 211 | if (type && type != CT_ISO)\r |
| 212 | elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r |
| 213 | type = CT_ISO; // Sega CD (ISO)\r |
| 214 | }\r |
| 215 | if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {\r |
| 216 | if (type && type != CT_BIN)\r |
| 217 | elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r |
| 218 | type = CT_BIN; // Sega CD (BIN)\r |
| 219 | }\r |
| 220 | \r |
| 221 | if (type == CT_UNKNOWN) {\r |
| 222 | pm_close(cd_f);\r |
| 223 | return 0;\r |
| 224 | }\r |
| 225 | \r |
| 226 | pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);\r |
| 227 | pm_read(id_header, sizeof(id_header), cd_f);\r |
| 228 | \r |
| 229 | /* it seems we have a CD image here. Try to detect region now.. */\r |
| 230 | pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r |
| 231 | pm_read(buf, 1, cd_f);\r |
| 232 | pm_close(cd_f);\r |
| 233 | \r |
| 234 | if (buf[0] == 0x64) region = 8; // EU\r |
| 235 | if (buf[0] == 0xa1) region = 1; // JAP\r |
| 236 | \r |
| 237 | lprintf("detected %s Sega/Mega CD image with %s region\n",\r |
| 238 | type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r |
| 239 | \r |
| 240 | if (pregion != NULL) *pregion = region;\r |
| 241 | \r |
| 242 | return type;\r |
| 243 | }\r |
| 244 | \r |
| 245 | static int detect_media(const char *fname)\r |
| 246 | {\r |
| 247 | static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 };\r |
| 248 | static const char *sms_exts[] = { "sms", "gg", "sg" };\r |
| 249 | static const char *md_exts[] = { "gen", "bin", "smd" };\r |
| 250 | char buff0[32], buff[32];\r |
| 251 | unsigned short *d16;\r |
| 252 | pm_file *pmf;\r |
| 253 | char ext[5];\r |
| 254 | int i;\r |
| 255 | \r |
| 256 | get_ext(fname, ext);\r |
| 257 | \r |
| 258 | // detect wrong extensions\r |
| 259 | if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) // s.gz ~ .mds.gz\r |
| 260 | return PM_BAD;\r |
| 261 | \r |
| 262 | /* don't believe in extensions, except .cue */\r |
| 263 | if (strcasecmp(ext, ".cue") == 0)\r |
| 264 | return PM_CD;\r |
| 265 | \r |
| 266 | pmf = pm_open(fname);\r |
| 267 | if (pmf == NULL)\r |
| 268 | return PM_BAD;\r |
| 269 | \r |
| 270 | if (pm_read(buff0, 32, pmf) != 32) {\r |
| 271 | pm_close(pmf);\r |
| 272 | return PM_BAD;\r |
| 273 | }\r |
| 274 | \r |
| 275 | if (strncasecmp("SEGADISCSYSTEM", buff0 + 0x00, 14) == 0 ||\r |
| 276 | strncasecmp("SEGADISCSYSTEM", buff0 + 0x10, 14) == 0) {\r |
| 277 | pm_close(pmf);\r |
| 278 | return PM_CD;\r |
| 279 | }\r |
| 280 | \r |
| 281 | /* check for SMD evil */\r |
| 282 | if (pmf->size >= 0x4200 && (pmf->size & 0x3fff) == 0x200) {\r |
| 283 | if (pm_seek(pmf, sms_offsets[0] + 0x200, SEEK_SET) == sms_offsets[0] + 0x200 &&\r |
| 284 | pm_read(buff, 16, pmf) == 16 &&\r |
| 285 | strncmp("TMR SEGA", buff, 8) == 0)\r |
| 286 | goto looks_like_sms;\r |
| 287 | \r |
| 288 | /* could parse further but don't bother */\r |
| 289 | goto extension_check;\r |
| 290 | }\r |
| 291 | \r |
| 292 | /* MD header? Act as TMSS BIOS here */\r |
| 293 | if (pm_seek(pmf, 0x100, SEEK_SET) == 0x100 && pm_read(buff, 16, pmf) == 16) {\r |
| 294 | if (strncmp(buff, "SEGA", 4) == 0 || strncmp(buff, " SEG", 4) == 0)\r |
| 295 | goto looks_like_md;\r |
| 296 | }\r |
| 297 | \r |
| 298 | for (i = 0; i < array_size(sms_offsets); i++) {\r |
| 299 | if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i])\r |
| 300 | continue;\r |
| 301 | \r |
| 302 | if (pm_read(buff, 16, pmf) != 16)\r |
| 303 | continue;\r |
| 304 | \r |
| 305 | if (strncmp("TMR SEGA", buff, 8) == 0)\r |
| 306 | goto looks_like_sms;\r |
| 307 | }\r |
| 308 | \r |
| 309 | extension_check:\r |
| 310 | /* probably some headerless thing. Maybe check the extension after all. */\r |
| 311 | for (i = 0; i < array_size(md_exts); i++)\r |
| 312 | if (strcasecmp(pmf->ext, md_exts[i]) == 0)\r |
| 313 | goto looks_like_md;\r |
| 314 | \r |
| 315 | for (i = 0; i < array_size(sms_exts); i++)\r |
| 316 | if (strcasecmp(pmf->ext, sms_exts[i]) == 0)\r |
| 317 | goto looks_like_sms;\r |
| 318 | \r |
| 319 | /* If everything else fails, make a guess on the reset vector */\r |
| 320 | d16 = (unsigned short *)(buff0 + 4);\r |
| 321 | if ((((d16[0] << 16) | d16[1]) & 0xffffff) >= pmf->size) {\r |
| 322 | lprintf("bad MD reset vector, assuming SMS\n");\r |
| 323 | goto looks_like_sms;\r |
| 324 | }\r |
| 325 | \r |
| 326 | looks_like_md:\r |
| 327 | pm_close(pmf);\r |
| 328 | return PM_MD_CART;\r |
| 329 | \r |
| 330 | looks_like_sms:\r |
| 331 | pm_close(pmf);\r |
| 332 | return PM_MARK3;\r |
| 333 | }\r |
| 334 | \r |
| 335 | static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r |
| 336 | {\r |
| 337 | char *p = dest;\r |
| 338 | int i;\r |
| 339 | \r |
| 340 | if (swab) swab = 1;\r |
| 341 | \r |
| 342 | for (i = len - 1; i >= 0; i--)\r |
| 343 | {\r |
| 344 | if (src[i^swab] != ' ') break;\r |
| 345 | }\r |
| 346 | len = i + 1;\r |
| 347 | \r |
| 348 | for (i = 0; i < len; i++)\r |
| 349 | {\r |
| 350 | unsigned char s = src[i^swab];\r |
| 351 | if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r |
| 352 | s != '[' && s != ']' && s != '\\')\r |
| 353 | {\r |
| 354 | *p++ = s;\r |
| 355 | }\r |
| 356 | else\r |
| 357 | {\r |
| 358 | sprintf(p, "\\%02x", s);\r |
| 359 | p += 3;\r |
| 360 | }\r |
| 361 | }\r |
| 362 | \r |
| 363 | return p - dest;\r |
| 364 | }\r |
| 365 | \r |
| 366 | static char *emu_make_rom_id(void)\r |
| 367 | {\r |
| 368 | static char id_string[3+0xe*3+0x3*3+0x30*3+3];\r |
| 369 | int pos, swab = 1;\r |
| 370 | \r |
| 371 | if (PicoAHW & PAHW_MCD) {\r |
| 372 | strcpy(id_string, "CD|");\r |
| 373 | swab = 0;\r |
| 374 | }\r |
| 375 | else strcpy(id_string, "MD|");\r |
| 376 | pos = 3;\r |
| 377 | \r |
| 378 | pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r |
| 379 | id_string[pos] = '|'; pos++;\r |
| 380 | pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r |
| 381 | id_string[pos] = '|'; pos++;\r |
| 382 | pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r |
| 383 | id_string[pos] = 0;\r |
| 384 | \r |
| 385 | return id_string;\r |
| 386 | }\r |
| 387 | \r |
| 388 | // buffer must be at least 150 byte long\r |
| 389 | void emu_get_game_name(char *str150)\r |
| 390 | {\r |
| 391 | int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;\r |
| 392 | char *s, *d;\r |
| 393 | \r |
| 394 | ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name\r |
| 395 | \r |
| 396 | for (s = d = str150 + 1; s < str150+ret; s++)\r |
| 397 | {\r |
| 398 | if (*s == 0) break;\r |
| 399 | if (*s != ' ' || d[-1] != ' ')\r |
| 400 | *d++ = *s;\r |
| 401 | }\r |
| 402 | *d = 0;\r |
| 403 | }\r |
| 404 | \r |
| 405 | static void shutdown_MCD(void)\r |
| 406 | {\r |
| 407 | if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)\r |
| 408 | Stop_CD();\r |
| 409 | PicoAHW &= ~PAHW_MCD;\r |
| 410 | }\r |
| 411 | \r |
| 412 | // note: this function might mangle rom_fname\r |
| 413 | // XXX: portions of this code should move to pico/\r |
| 414 | int emu_reload_rom(char *rom_fname)\r |
| 415 | {\r |
| 416 | unsigned int rom_size = 0;\r |
| 417 | char *used_rom_name = rom_fname;\r |
| 418 | unsigned char *rom_data = NULL;\r |
| 419 | char ext[5];\r |
| 420 | pm_file *rom = NULL;\r |
| 421 | int cd_state = CIT_NOT_CD;\r |
| 422 | int ret, media_type, cd_region;\r |
| 423 | int cfg_loaded = 0, bad_rom = 0;\r |
| 424 | \r |
| 425 | lprintf("emu_ReloadRom(%s)\n", rom_fname);\r |
| 426 | \r |
| 427 | get_ext(rom_fname, ext);\r |
| 428 | \r |
| 429 | // check for movie file\r |
| 430 | if (movie_data) {\r |
| 431 | free(movie_data);\r |
| 432 | movie_data = 0;\r |
| 433 | }\r |
| 434 | if (!strcmp(ext, ".gmv"))\r |
| 435 | {\r |
| 436 | // check for both gmv and rom\r |
| 437 | int dummy;\r |
| 438 | FILE *movie_file = fopen(rom_fname, "rb");\r |
| 439 | if(!movie_file) {\r |
| 440 | me_update_msg("Failed to open movie.");\r |
| 441 | return 0;\r |
| 442 | }\r |
| 443 | fseek(movie_file, 0, SEEK_END);\r |
| 444 | movie_size = ftell(movie_file);\r |
| 445 | fseek(movie_file, 0, SEEK_SET);\r |
| 446 | if(movie_size < 64+3) {\r |
| 447 | me_update_msg("Invalid GMV file.");\r |
| 448 | fclose(movie_file);\r |
| 449 | return 0;\r |
| 450 | }\r |
| 451 | movie_data = malloc(movie_size);\r |
| 452 | if(movie_data == NULL) {\r |
| 453 | me_update_msg("low memory.");\r |
| 454 | fclose(movie_file);\r |
| 455 | return 0;\r |
| 456 | }\r |
| 457 | fread(movie_data, 1, movie_size, movie_file);\r |
| 458 | fclose(movie_file);\r |
| 459 | if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r |
| 460 | me_update_msg("Invalid GMV file.");\r |
| 461 | return 0;\r |
| 462 | }\r |
| 463 | dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r |
| 464 | if (!dummy) {\r |
| 465 | me_update_msg("Could't find a ROM for movie.");\r |
| 466 | return 0;\r |
| 467 | }\r |
| 468 | get_ext(rom_fname, ext);\r |
| 469 | lprintf("gmv loaded for %s\n", rom_fname);\r |
| 470 | }\r |
| 471 | else if (!strcmp(ext, ".pat"))\r |
| 472 | {\r |
| 473 | int dummy;\r |
| 474 | PicoPatchLoad(rom_fname);\r |
| 475 | dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r |
| 476 | if (!dummy) {\r |
| 477 | me_update_msg("Could't find a ROM to patch.");\r |
| 478 | return 0;\r |
| 479 | }\r |
| 480 | get_ext(rom_fname, ext);\r |
| 481 | }\r |
| 482 | \r |
| 483 | media_type = detect_media(rom_fname);\r |
| 484 | if (media_type == PM_BAD) {\r |
| 485 | me_update_msg("Not a ROM/CD img selected.");\r |
| 486 | return 0;\r |
| 487 | }\r |
| 488 | \r |
| 489 | shutdown_MCD();\r |
| 490 | PicoPatchUnload();\r |
| 491 | PicoAHW = 0;\r |
| 492 | \r |
| 493 | if (media_type == PM_CD)\r |
| 494 | {\r |
| 495 | // check for MegaCD image\r |
| 496 | cd_state = emu_cd_check(&cd_region, rom_fname);\r |
| 497 | if (cd_state >= 0 && cd_state != CIT_NOT_CD)\r |
| 498 | {\r |
| 499 | // valid CD image, check for BIOS..\r |
| 500 | \r |
| 501 | // we need to have config loaded at this point\r |
| 502 | ret = emu_read_config(1, 0);\r |
| 503 | if (!ret) emu_read_config(0, 0);\r |
| 504 | cfg_loaded = 1;\r |
| 505 | \r |
| 506 | if (PicoRegionOverride) {\r |
| 507 | cd_region = PicoRegionOverride;\r |
| 508 | lprintf("override region to %s\n", cd_region != 4 ?\r |
| 509 | (cd_region == 8 ? "EU" : "JAP") : "USA");\r |
| 510 | }\r |
| 511 | if (!find_bios(cd_region, &used_rom_name))\r |
| 512 | return 0;\r |
| 513 | \r |
| 514 | get_ext(used_rom_name, ext);\r |
| 515 | PicoAHW |= PAHW_MCD;\r |
| 516 | }\r |
| 517 | else {\r |
| 518 | me_update_msg("Invalid CD image");\r |
| 519 | return 0;\r |
| 520 | }\r |
| 521 | }\r |
| 522 | else if (media_type == PM_MARK3) {\r |
| 523 | lprintf("detected SMS ROM\n");\r |
| 524 | PicoAHW = PAHW_SMS;\r |
| 525 | }\r |
| 526 | \r |
| 527 | rom = pm_open(used_rom_name);\r |
| 528 | if (rom == NULL) {\r |
| 529 | me_update_msg("Failed to open ROM");\r |
| 530 | return 0;\r |
| 531 | }\r |
| 532 | \r |
| 533 | menu_romload_prepare(used_rom_name); // also CD load\r |
| 534 | \r |
| 535 | PicoCartUnload();\r |
| 536 | rom_loaded = 0;\r |
| 537 | \r |
| 538 | ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);\r |
| 539 | pm_close(rom);\r |
| 540 | if (ret != 0) {\r |
| 541 | if (ret == 2) me_update_msg("Out of memory");\r |
| 542 | else if (ret == 3) me_update_msg("Read failed");\r |
| 543 | else me_update_msg("PicoCartLoad() failed.");\r |
| 544 | goto fail;\r |
| 545 | }\r |
| 546 | \r |
| 547 | // detect wrong files\r |
| 548 | if (strncmp((char *)rom_data, "Pico", 4) == 0)\r |
| 549 | bad_rom = 1;\r |
| 550 | else if (!(PicoAHW & PAHW_SMS)) {\r |
| 551 | unsigned short *d = (unsigned short *)(rom_data + 4);\r |
| 552 | if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {\r |
| 553 | lprintf("bad reset vector\n");\r |
| 554 | bad_rom = 1;\r |
| 555 | }\r |
| 556 | }\r |
| 557 | \r |
| 558 | if (bad_rom) {\r |
| 559 | me_update_msg("Bad ROM detected.");\r |
| 560 | goto fail;\r |
| 561 | }\r |
| 562 | \r |
| 563 | // load config for this ROM (do this before insert to get correct region)\r |
| 564 | if (!(PicoAHW & PAHW_MCD))\r |
| 565 | memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r |
| 566 | if (!cfg_loaded) {\r |
| 567 | ret = emu_read_config(1, 0);\r |
| 568 | if (!ret) emu_read_config(0, 0);\r |
| 569 | }\r |
| 570 | \r |
| 571 | if (PicoCartInsert(rom_data, rom_size)) {\r |
| 572 | me_update_msg("Failed to load ROM.");\r |
| 573 | goto fail;\r |
| 574 | }\r |
| 575 | \r |
| 576 | // insert CD if it was detected\r |
| 577 | if (cd_state != CIT_NOT_CD) {\r |
| 578 | ret = Insert_CD(rom_fname, cd_state);\r |
| 579 | if (ret != 0) {\r |
| 580 | PicoCartUnload();\r |
| 581 | rom_data = NULL; // freed by unload\r |
| 582 | me_update_msg("Insert_CD() failed, invalid CD image?");\r |
| 583 | goto fail;\r |
| 584 | }\r |
| 585 | }\r |
| 586 | \r |
| 587 | menu_romload_end();\r |
| 588 | \r |
| 589 | if (PicoPatches) {\r |
| 590 | PicoPatchPrepare();\r |
| 591 | PicoPatchApply();\r |
| 592 | }\r |
| 593 | \r |
| 594 | // additional movie stuff\r |
| 595 | if (movie_data)\r |
| 596 | {\r |
| 597 | if (movie_data[0x14] == '6')\r |
| 598 | PicoOpt |= POPT_6BTN_PAD; // 6 button pad\r |
| 599 | else PicoOpt &= ~POPT_6BTN_PAD;\r |
| 600 | PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r |
| 601 | if (movie_data[0xF] >= 'A') {\r |
| 602 | if (movie_data[0x16] & 0x80) {\r |
| 603 | PicoRegionOverride = 8;\r |
| 604 | } else {\r |
| 605 | PicoRegionOverride = 4;\r |
| 606 | }\r |
| 607 | PicoReset();\r |
| 608 | // TODO: bits 6 & 5\r |
| 609 | }\r |
| 610 | movie_data[0x18+30] = 0;\r |
| 611 | emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);\r |
| 612 | }\r |
| 613 | else\r |
| 614 | {\r |
| 615 | const char *sys_name, *tv_standard;\r |
| 616 | int fps;\r |
| 617 | \r |
| 618 | if (PicoAHW & PAHW_SMS) {\r |
| 619 | sys_name = "Master System";\r |
| 620 | } else {\r |
| 621 | sys_name = "MegaDrive";\r |
| 622 | if ((Pico.m.hardware&0xc0) == 0x80)\r |
| 623 | sys_name = "Genesis";\r |
| 624 | }\r |
| 625 | tv_standard = Pico.m.pal ? "PAL" : "NTSC";\r |
| 626 | fps = Pico.m.pal ? 50 : 60;\r |
| 627 | \r |
| 628 | emu_status_msg("%s %s / %dFPS", tv_standard, sys_name, fps);\r |
| 629 | \r |
| 630 | PicoOpt &= ~POPT_DIS_VDP_FIFO;\r |
| 631 | }\r |
| 632 | \r |
| 633 | strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);\r |
| 634 | rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r |
| 635 | rom_loaded = 1;\r |
| 636 | \r |
| 637 | // load SRAM for this ROM\r |
| 638 | if (currentConfig.EmuOpt & EOPT_EN_SRAM)\r |
| 639 | emu_save_load_game(1, 1);\r |
| 640 | \r |
| 641 | return 1;\r |
| 642 | \r |
| 643 | fail:\r |
| 644 | if (rom_data)\r |
| 645 | free(rom_data);\r |
| 646 | menu_romload_end();\r |
| 647 | return 0;\r |
| 648 | }\r |
| 649 | \r |
| 650 | int emu_swap_cd(const char *fname)\r |
| 651 | {\r |
| 652 | cd_img_type cd_type;\r |
| 653 | int ret = -1;\r |
| 654 | \r |
| 655 | cd_type = emu_cd_check(NULL, fname);\r |
| 656 | if (cd_type != CIT_NOT_CD)\r |
| 657 | ret = Insert_CD(fname, cd_type);\r |
| 658 | if (ret != 0) {\r |
| 659 | me_update_msg("Load failed, invalid CD image?");\r |
| 660 | return 0;\r |
| 661 | }\r |
| 662 | \r |
| 663 | strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);\r |
| 664 | rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r |
| 665 | return 1;\r |
| 666 | }\r |
| 667 | \r |
| 668 | static void romfname_ext(char *dst, const char *prefix, const char *ext)\r |
| 669 | {\r |
| 670 | char *p;\r |
| 671 | int prefix_len = 0;\r |
| 672 | \r |
| 673 | // make save filename\r |
| 674 | p = rom_fname_loaded + strlen(rom_fname_loaded) - 1;\r |
| 675 | for (; p >= rom_fname_loaded && *p != PATH_SEP_C; p--); p++;\r |
| 676 | *dst = 0;\r |
| 677 | if (prefix) {\r |
| 678 | int len = plat_get_root_dir(dst, 512);\r |
| 679 | strcpy(dst + len, prefix);\r |
| 680 | prefix_len = len + strlen(prefix);\r |
| 681 | }\r |
| 682 | #ifdef UIQ3\r |
| 683 | else p = rom_fname_loaded; // backward compatibility\r |
| 684 | #endif\r |
| 685 | strncpy(dst + prefix_len, p, 511-prefix_len);\r |
| 686 | dst[511-8] = 0;\r |
| 687 | if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r |
| 688 | if (ext) strcat(dst, ext);\r |
| 689 | }\r |
| 690 | \r |
| 691 | void emu_make_path(char *buff, const char *end, int size)\r |
| 692 | {\r |
| 693 | int pos, end_len;\r |
| 694 | \r |
| 695 | end_len = strlen(end);\r |
| 696 | pos = plat_get_root_dir(buff, size);\r |
| 697 | strncpy(buff + pos, end, size - pos);\r |
| 698 | buff[size - 1] = 0;\r |
| 699 | if (pos + end_len > size - 1)\r |
| 700 | lprintf("Warning: path truncated: %s\n", buff);\r |
| 701 | }\r |
| 702 | \r |
| 703 | static void make_config_cfg(char *cfg_buff_512)\r |
| 704 | {\r |
| 705 | emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);\r |
| 706 | if (config_slot != 0)\r |
| 707 | {\r |
| 708 | char *p = strrchr(cfg_buff_512, '.');\r |
| 709 | if (p == NULL)\r |
| 710 | p = cfg_buff_512 + strlen(cfg_buff_512);\r |
| 711 | sprintf(p, ".%i.cfg", config_slot);\r |
| 712 | }\r |
| 713 | cfg_buff_512[511] = 0;\r |
| 714 | }\r |
| 715 | \r |
| 716 | void emu_set_defconfig(void)\r |
| 717 | {\r |
| 718 | memcpy(¤tConfig, &defaultConfig, sizeof(currentConfig));\r |
| 719 | PicoOpt = currentConfig.s_PicoOpt;\r |
| 720 | PsndRate = currentConfig.s_PsndRate;\r |
| 721 | PicoRegionOverride = currentConfig.s_PicoRegion;\r |
| 722 | PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r |
| 723 | PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r |
| 724 | }\r |
| 725 | \r |
| 726 | int emu_read_config(int game, int no_defaults)\r |
| 727 | {\r |
| 728 | char cfg[512];\r |
| 729 | int ret;\r |
| 730 | \r |
| 731 | if (!no_defaults)\r |
| 732 | emu_set_defconfig();\r |
| 733 | \r |
| 734 | if (!game)\r |
| 735 | {\r |
| 736 | make_config_cfg(cfg);\r |
| 737 | ret = config_readsect(cfg, NULL);\r |
| 738 | }\r |
| 739 | else\r |
| 740 | {\r |
| 741 | char *sect = emu_make_rom_id();\r |
| 742 | \r |
| 743 | // try new .cfg way\r |
| 744 | if (config_slot != 0)\r |
| 745 | sprintf(cfg, "game.%i.cfg", config_slot);\r |
| 746 | else strcpy(cfg, "game.cfg");\r |
| 747 | \r |
| 748 | ret = -1;\r |
| 749 | if (config_havesect(cfg, sect))\r |
| 750 | {\r |
| 751 | // read user's config\r |
| 752 | int vol = currentConfig.volume;\r |
| 753 | emu_set_defconfig();\r |
| 754 | ret = config_readsect(cfg, sect);\r |
| 755 | currentConfig.volume = vol; // make vol global (bah)\r |
| 756 | }\r |
| 757 | else\r |
| 758 | {\r |
| 759 | // read global config, and apply game_def.cfg on top\r |
| 760 | make_config_cfg(cfg);\r |
| 761 | config_readsect(cfg, NULL);\r |
| 762 | emu_make_path(cfg, "game_def.cfg", sizeof(cfg));\r |
| 763 | ret = config_readsect(cfg, sect);\r |
| 764 | }\r |
| 765 | \r |
| 766 | if (ret == 0)\r |
| 767 | {\r |
| 768 | lprintf("loaded cfg from sect \"%s\"\n", sect);\r |
| 769 | }\r |
| 770 | }\r |
| 771 | \r |
| 772 | plat_validate_config();\r |
| 773 | \r |
| 774 | // some sanity checks\r |
| 775 | #ifdef PSP\r |
| 776 | /* TODO: mv to plat_validate_config() */\r |
| 777 | if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r |
| 778 | if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r |
| 779 | if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r |
| 780 | #endif\r |
| 781 | if (currentConfig.volume < 0 || currentConfig.volume > 99)\r |
| 782 | currentConfig.volume = 50;\r |
| 783 | \r |
| 784 | if (ret == 0)\r |
| 785 | config_slot_current = config_slot;\r |
| 786 | \r |
| 787 | return (ret == 0);\r |
| 788 | }\r |
| 789 | \r |
| 790 | \r |
| 791 | int emu_write_config(int is_game)\r |
| 792 | {\r |
| 793 | char cfg[512], *game_sect = NULL;\r |
| 794 | int ret, write_lrom = 0;\r |
| 795 | \r |
| 796 | if (!is_game)\r |
| 797 | {\r |
| 798 | make_config_cfg(cfg);\r |
| 799 | write_lrom = 1;\r |
| 800 | } else {\r |
| 801 | if (config_slot != 0)\r |
| 802 | sprintf(cfg, "game.%i.cfg", config_slot);\r |
| 803 | else strcpy(cfg, "game.cfg");\r |
| 804 | game_sect = emu_make_rom_id();\r |
| 805 | lprintf("emu_write_config: sect \"%s\"\n", game_sect);\r |
| 806 | }\r |
| 807 | \r |
| 808 | lprintf("emu_write_config: %s ", cfg);\r |
| 809 | ret = config_writesect(cfg, game_sect);\r |
| 810 | if (write_lrom) config_writelrom(cfg);\r |
| 811 | #ifndef NO_SYNC\r |
| 812 | sync();\r |
| 813 | #endif\r |
| 814 | lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r |
| 815 | \r |
| 816 | if (ret == 0) config_slot_current = config_slot;\r |
| 817 | return ret == 0;\r |
| 818 | }\r |
| 819 | \r |
| 820 | \r |
| 821 | /* always using built-in font */\r |
| 822 | \r |
| 823 | #define mk_text_out(name, type, val, topleft, step_x, step_y) \\r |
| 824 | void name(int x, int y, const char *text) \\r |
| 825 | { \\r |
| 826 | int i, l, len = strlen(text); \\r |
| 827 | type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r |
| 828 | \\r |
| 829 | for (i = 0; i < len; i++, screen += 8 * step_x) \\r |
| 830 | { \\r |
| 831 | for (l = 0; l < 8; l++) \\r |
| 832 | { \\r |
| 833 | unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r |
| 834 | type *s = screen + l * step_y; \\r |
| 835 | if (fd&0x80) s[step_x * 0] = val; \\r |
| 836 | if (fd&0x40) s[step_x * 1] = val; \\r |
| 837 | if (fd&0x20) s[step_x * 2] = val; \\r |
| 838 | if (fd&0x10) s[step_x * 3] = val; \\r |
| 839 | if (fd&0x08) s[step_x * 4] = val; \\r |
| 840 | if (fd&0x04) s[step_x * 5] = val; \\r |
| 841 | if (fd&0x02) s[step_x * 6] = val; \\r |
| 842 | if (fd&0x01) s[step_x * 7] = val; \\r |
| 843 | } \\r |
| 844 | } \\r |
| 845 | }\r |
| 846 | \r |
| 847 | mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r |
| 848 | mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r |
| 849 | mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r |
| 850 | (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r |
| 851 | mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r |
| 852 | (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r |
| 853 | \r |
| 854 | #undef mk_text_out\r |
| 855 | \r |
| 856 | \r |
| 857 | void update_movie(void)\r |
| 858 | {\r |
| 859 | int offs = Pico.m.frame_count*3 + 0x40;\r |
| 860 | if (offs+3 > movie_size) {\r |
| 861 | free(movie_data);\r |
| 862 | movie_data = 0;\r |
| 863 | emu_status_msg("END OF MOVIE.");\r |
| 864 | lprintf("END OF MOVIE.\n");\r |
| 865 | } else {\r |
| 866 | // MXYZ SACB RLDU\r |
| 867 | PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r |
| 868 | if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C\r |
| 869 | if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A\r |
| 870 | if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B\r |
| 871 | PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r |
| 872 | if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C\r |
| 873 | if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A\r |
| 874 | if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B\r |
| 875 | PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r |
| 876 | if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r |
| 877 | if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r |
| 878 | PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r |
| 879 | if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r |
| 880 | if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r |
| 881 | }\r |
| 882 | }\r |
| 883 | \r |
| 884 | static int try_ropen_file(const char *fname)\r |
| 885 | {\r |
| 886 | FILE *f;\r |
| 887 | \r |
| 888 | f = fopen(fname, "rb");\r |
| 889 | if (f) {\r |
| 890 | fclose(f);\r |
| 891 | return 1;\r |
| 892 | }\r |
| 893 | return 0;\r |
| 894 | }\r |
| 895 | \r |
| 896 | char *emu_get_save_fname(int load, int is_sram, int slot)\r |
| 897 | {\r |
| 898 | static char saveFname[512];\r |
| 899 | char ext[16];\r |
| 900 | \r |
| 901 | if (is_sram)\r |
| 902 | {\r |
| 903 | strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r |
| 904 | romfname_ext(saveFname, (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);\r |
| 905 | if (!load)\r |
| 906 | return saveFname;\r |
| 907 | \r |
| 908 | if (try_ropen_file(saveFname))\r |
| 909 | return saveFname;\r |
| 910 | \r |
| 911 | romfname_ext(saveFname, NULL, ext);\r |
| 912 | if (try_ropen_file(saveFname))\r |
| 913 | return saveFname;\r |
| 914 | }\r |
| 915 | else\r |
| 916 | {\r |
| 917 | const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";\r |
| 918 | const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";\r |
| 919 | ext[0] = 0;\r |
| 920 | if (slot > 0 && slot < 10)\r |
| 921 | sprintf(ext, ".%i", slot);\r |
| 922 | strcat(ext, ext_main);\r |
| 923 | \r |
| 924 | if (!load) {\r |
| 925 | romfname_ext(saveFname, "mds" PATH_SEP, ext);\r |
| 926 | return saveFname;\r |
| 927 | }\r |
| 928 | else {\r |
| 929 | romfname_ext(saveFname, "mds" PATH_SEP, ext);\r |
| 930 | if (try_ropen_file(saveFname))\r |
| 931 | return saveFname;\r |
| 932 | \r |
| 933 | romfname_ext(saveFname, NULL, ext);\r |
| 934 | if (try_ropen_file(saveFname))\r |
| 935 | return saveFname;\r |
| 936 | \r |
| 937 | // try the other ext\r |
| 938 | ext[0] = 0;\r |
| 939 | if (slot > 0 && slot < 10)\r |
| 940 | sprintf(ext, ".%i", slot);\r |
| 941 | strcat(ext, ext_othr);\r |
| 942 | \r |
| 943 | romfname_ext(saveFname, "mds"PATH_SEP, ext);\r |
| 944 | if (try_ropen_file(saveFname))\r |
| 945 | return saveFname;\r |
| 946 | }\r |
| 947 | }\r |
| 948 | \r |
| 949 | return NULL;\r |
| 950 | }\r |
| 951 | \r |
| 952 | int emu_check_save_file(int slot)\r |
| 953 | {\r |
| 954 | return emu_get_save_fname(1, 0, slot) ? 1 : 0;\r |
| 955 | }\r |
| 956 | \r |
| 957 | int emu_save_load_game(int load, int sram)\r |
| 958 | {\r |
| 959 | int ret = 0;\r |
| 960 | char *saveFname;\r |
| 961 | \r |
| 962 | // make save filename\r |
| 963 | saveFname = emu_get_save_fname(load, sram, state_slot);\r |
| 964 | if (saveFname == NULL) {\r |
| 965 | if (!sram)\r |
| 966 | emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r |
| 967 | return -1;\r |
| 968 | }\r |
| 969 | \r |
| 970 | lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r |
| 971 | \r |
| 972 | if (sram)\r |
| 973 | {\r |
| 974 | FILE *sramFile;\r |
| 975 | int sram_size;\r |
| 976 | unsigned char *sram_data;\r |
| 977 | int truncate = 1;\r |
| 978 | if (PicoAHW & PAHW_MCD)\r |
| 979 | {\r |
| 980 | if (PicoOpt & POPT_EN_MCD_RAMCART) {\r |
| 981 | sram_size = 0x12000;\r |
| 982 | sram_data = SRam.data;\r |
| 983 | if (sram_data)\r |
| 984 | memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r |
| 985 | } else {\r |
| 986 | sram_size = 0x2000;\r |
| 987 | sram_data = Pico_mcd->bram;\r |
| 988 | truncate = 0; // the .brm may contain RAM cart data after normal brm\r |
| 989 | }\r |
| 990 | } else {\r |
| 991 | sram_size = SRam.size;\r |
| 992 | sram_data = SRam.data;\r |
| 993 | }\r |
| 994 | if (!sram_data) return 0; // SRam forcefully disabled for this game\r |
| 995 | \r |
| 996 | if (load)\r |
| 997 | {\r |
| 998 | sramFile = fopen(saveFname, "rb");\r |
| 999 | if(!sramFile) return -1;\r |
| 1000 | fread(sram_data, 1, sram_size, sramFile);\r |
| 1001 | fclose(sramFile);\r |
| 1002 | if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r |
| 1003 | memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r |
| 1004 | } else {\r |
| 1005 | // sram save needs some special processing\r |
| 1006 | // see if we have anything to save\r |
| 1007 | for (; sram_size > 0; sram_size--)\r |
| 1008 | if (sram_data[sram_size-1]) break;\r |
| 1009 | \r |
| 1010 | if (sram_size) {\r |
| 1011 | sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r |
| 1012 | if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r |
| 1013 | if (!sramFile) return -1;\r |
| 1014 | ret = fwrite(sram_data, 1, sram_size, sramFile);\r |
| 1015 | ret = (ret != sram_size) ? -1 : 0;\r |
| 1016 | fclose(sramFile);\r |
| 1017 | #ifndef NO_SYNC\r |
| 1018 | sync();\r |
| 1019 | #endif\r |
| 1020 | }\r |
| 1021 | }\r |
| 1022 | return ret;\r |
| 1023 | }\r |
| 1024 | else\r |
| 1025 | {\r |
| 1026 | ret = PicoState(saveFname, !load);\r |
| 1027 | if (!ret) {\r |
| 1028 | #ifndef NO_SYNC\r |
| 1029 | if (!load) sync();\r |
| 1030 | #endif\r |
| 1031 | emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");\r |
| 1032 | } else {\r |
| 1033 | emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r |
| 1034 | ret = -1;\r |
| 1035 | }\r |
| 1036 | \r |
| 1037 | return ret;\r |
| 1038 | }\r |
| 1039 | }\r |
| 1040 | \r |
| 1041 | void emu_set_fastforward(int set_on)\r |
| 1042 | {\r |
| 1043 | static void *set_PsndOut = NULL;\r |
| 1044 | static int set_Frameskip, set_EmuOpt, is_on = 0;\r |
| 1045 | \r |
| 1046 | if (set_on && !is_on) {\r |
| 1047 | set_PsndOut = PsndOut;\r |
| 1048 | set_Frameskip = currentConfig.Frameskip;\r |
| 1049 | set_EmuOpt = currentConfig.EmuOpt;\r |
| 1050 | PsndOut = NULL;\r |
| 1051 | currentConfig.Frameskip = 8;\r |
| 1052 | currentConfig.EmuOpt &= ~4;\r |
| 1053 | currentConfig.EmuOpt |= 0x40000;\r |
| 1054 | is_on = 1;\r |
| 1055 | emu_status_msg("FAST FORWARD");\r |
| 1056 | }\r |
| 1057 | else if (!set_on && is_on) {\r |
| 1058 | PsndOut = set_PsndOut;\r |
| 1059 | currentConfig.Frameskip = set_Frameskip;\r |
| 1060 | currentConfig.EmuOpt = set_EmuOpt;\r |
| 1061 | PsndRerate(1);\r |
| 1062 | is_on = 0;\r |
| 1063 | }\r |
| 1064 | }\r |
| 1065 | \r |
| 1066 | static void emu_tray_open(void)\r |
| 1067 | {\r |
| 1068 | engineState = PGS_TrayMenu;\r |
| 1069 | }\r |
| 1070 | \r |
| 1071 | static void emu_tray_close(void)\r |
| 1072 | {\r |
| 1073 | emu_status_msg("CD tray closed.");\r |
| 1074 | }\r |
| 1075 | \r |
| 1076 | void emu_reset_game(void)\r |
| 1077 | {\r |
| 1078 | PicoReset();\r |
| 1079 | reset_timing = 1;\r |
| 1080 | }\r |
| 1081 | \r |
| 1082 | void run_events_pico(unsigned int events)\r |
| 1083 | {\r |
| 1084 | int lim_x;\r |
| 1085 | \r |
| 1086 | if (events & PEV_PICO_SWINP) {\r |
| 1087 | pico_inp_mode++;\r |
| 1088 | if (pico_inp_mode > 2)\r |
| 1089 | pico_inp_mode = 0;\r |
| 1090 | switch (pico_inp_mode) {\r |
| 1091 | case 2: emu_status_msg("Input: Pen on Pad"); break;\r |
| 1092 | case 1: emu_status_msg("Input: Pen on Storyware"); break;\r |
| 1093 | case 0: emu_status_msg("Input: Joystick");\r |
| 1094 | PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r |
| 1095 | break;\r |
| 1096 | }\r |
| 1097 | }\r |
| 1098 | if (events & PEV_PICO_PPREV) {\r |
| 1099 | PicoPicohw.page--;\r |
| 1100 | if (PicoPicohw.page < 0)\r |
| 1101 | PicoPicohw.page = 0;\r |
| 1102 | emu_status_msg("Page %i", PicoPicohw.page);\r |
| 1103 | }\r |
| 1104 | if (events & PEV_PICO_PNEXT) {\r |
| 1105 | PicoPicohw.page++;\r |
| 1106 | if (PicoPicohw.page > 6)\r |
| 1107 | PicoPicohw.page = 6;\r |
| 1108 | emu_status_msg("Page %i", PicoPicohw.page);\r |
| 1109 | }\r |
| 1110 | \r |
| 1111 | if (pico_inp_mode == 0)\r |
| 1112 | return;\r |
| 1113 | \r |
| 1114 | /* handle other input modes */\r |
| 1115 | if (PicoPad[0] & 1) pico_pen_y--;\r |
| 1116 | if (PicoPad[0] & 2) pico_pen_y++;\r |
| 1117 | if (PicoPad[0] & 4) pico_pen_x--;\r |
| 1118 | if (PicoPad[0] & 8) pico_pen_x++;\r |
| 1119 | PicoPad[0] &= ~0x0f; // release UDLR\r |
| 1120 | \r |
| 1121 | lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r |
| 1122 | if (pico_pen_y < 8)\r |
| 1123 | pico_pen_y = 8;\r |
| 1124 | if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r |
| 1125 | pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r |
| 1126 | if (pico_pen_x < 0)\r |
| 1127 | pico_pen_x = 0;\r |
| 1128 | if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r |
| 1129 | pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r |
| 1130 | \r |
| 1131 | PicoPicohw.pen_pos[0] = pico_pen_x;\r |
| 1132 | if (!(Pico.video.reg[12] & 1))\r |
| 1133 | PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r |
| 1134 | PicoPicohw.pen_pos[0] += 0x3c;\r |
| 1135 | PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r |
| 1136 | }\r |
| 1137 | \r |
| 1138 | static void do_turbo(int *pad, int acts)\r |
| 1139 | {\r |
| 1140 | static int turbo_pad = 0;\r |
| 1141 | static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r |
| 1142 | int inc = currentConfig.turbo_rate * 2;\r |
| 1143 | \r |
| 1144 | if (acts & 0x1000) {\r |
| 1145 | turbo_cnt[0] += inc;\r |
| 1146 | if (turbo_cnt[0] >= 60)\r |
| 1147 | turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r |
| 1148 | }\r |
| 1149 | if (acts & 0x2000) {\r |
| 1150 | turbo_cnt[1] += inc;\r |
| 1151 | if (turbo_cnt[1] >= 60)\r |
| 1152 | turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r |
| 1153 | }\r |
| 1154 | if (acts & 0x4000) {\r |
| 1155 | turbo_cnt[2] += inc;\r |
| 1156 | if (turbo_cnt[2] >= 60)\r |
| 1157 | turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r |
| 1158 | }\r |
| 1159 | *pad |= turbo_pad & (acts >> 8);\r |
| 1160 | }\r |
| 1161 | \r |
| 1162 | static void run_events_ui(unsigned int which)\r |
| 1163 | {\r |
| 1164 | if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r |
| 1165 | {\r |
| 1166 | int do_it = 1;\r |
| 1167 | if ( emu_check_save_file(state_slot) &&\r |
| 1168 | (((which & PEV_STATE_LOAD) && (currentConfig.EmuOpt & EOPT_CONFIRM_LOAD)) ||\r |
| 1169 | ((which & PEV_STATE_SAVE) && (currentConfig.EmuOpt & EOPT_CONFIRM_SAVE))) )\r |
| 1170 | {\r |
| 1171 | const char *nm;\r |
| 1172 | char tmp[64];\r |
| 1173 | int keys, len;\r |
| 1174 | \r |
| 1175 | strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");\r |
| 1176 | len = strlen(tmp);\r |
| 1177 | nm = in_get_key_name(-1, -PBTN_MA3);\r |
| 1178 | snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r |
| 1179 | len = strlen(tmp);\r |
| 1180 | nm = in_get_key_name(-1, -PBTN_MBACK);\r |
| 1181 | snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r |
| 1182 | \r |
| 1183 | plat_status_msg_busy_first(tmp);\r |
| 1184 | \r |
| 1185 | in_set_blocking(1);\r |
| 1186 | while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r |
| 1187 | ;\r |
| 1188 | while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )\r |
| 1189 | ;\r |
| 1190 | if (keys & PBTN_MBACK)\r |
| 1191 | do_it = 0;\r |
| 1192 | while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r |
| 1193 | ;\r |
| 1194 | in_set_blocking(0);\r |
| 1195 | }\r |
| 1196 | if (do_it) {\r |
| 1197 | plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");\r |
| 1198 | PicoStateProgressCB = plat_status_msg_busy_next;\r |
| 1199 | emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r |
| 1200 | PicoStateProgressCB = NULL;\r |
| 1201 | }\r |
| 1202 | }\r |
| 1203 | if (which & PEV_SWITCH_RND)\r |
| 1204 | {\r |
| 1205 | plat_video_toggle_renderer(1, 0);\r |
| 1206 | }\r |
| 1207 | if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r |
| 1208 | {\r |
| 1209 | if (which & PEV_SSLOT_PREV) {\r |
| 1210 | state_slot -= 1;\r |
| 1211 | if (state_slot < 0)\r |
| 1212 | state_slot = 9;\r |
| 1213 | } else {\r |
| 1214 | state_slot += 1;\r |
| 1215 | if (state_slot > 9)\r |
| 1216 | state_slot = 0;\r |
| 1217 | }\r |
| 1218 | \r |
| 1219 | emu_status_msg("SAVE SLOT %i [%s]", state_slot,\r |
| 1220 | emu_check_save_file(state_slot) ? "USED" : "FREE");\r |
| 1221 | }\r |
| 1222 | if (which & PEV_MENU)\r |
| 1223 | engineState = PGS_Menu;\r |
| 1224 | }\r |
| 1225 | \r |
| 1226 | void emu_update_input(void)\r |
| 1227 | {\r |
| 1228 | static int prev_events = 0;\r |
| 1229 | int actions[IN_BINDTYPE_COUNT] = { 0, };\r |
| 1230 | int pl_actions[2];\r |
| 1231 | int events;\r |
| 1232 | \r |
| 1233 | in_update(actions);\r |
| 1234 | \r |
| 1235 | pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r |
| 1236 | pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r |
| 1237 | \r |
| 1238 | PicoPad[0] = pl_actions[0] & 0xfff;\r |
| 1239 | PicoPad[1] = pl_actions[1] & 0xfff;\r |
| 1240 | \r |
| 1241 | if (pl_actions[0] & 0x7000)\r |
| 1242 | do_turbo(&PicoPad[0], pl_actions[0]);\r |
| 1243 | if (pl_actions[1] & 0x7000)\r |
| 1244 | do_turbo(&PicoPad[1], pl_actions[1]);\r |
| 1245 | \r |
| 1246 | events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r |
| 1247 | \r |
| 1248 | // volume is treated in special way and triggered every frame\r |
| 1249 | if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r |
| 1250 | plat_update_volume(1, events & PEV_VOL_UP);\r |
| 1251 | \r |
| 1252 | if ((events ^ prev_events) & PEV_FF) {\r |
| 1253 | emu_set_fastforward(events & PEV_FF);\r |
| 1254 | plat_update_volume(0, 0);\r |
| 1255 | reset_timing = 1;\r |
| 1256 | }\r |
| 1257 | \r |
| 1258 | events &= ~prev_events;\r |
| 1259 | \r |
| 1260 | if (PicoAHW == PAHW_PICO)\r |
| 1261 | run_events_pico(events);\r |
| 1262 | if (events)\r |
| 1263 | run_events_ui(events);\r |
| 1264 | if (movie_data)\r |
| 1265 | update_movie();\r |
| 1266 | \r |
| 1267 | prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r |
| 1268 | }\r |
| 1269 | \r |
| 1270 | static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r |
| 1271 | {\r |
| 1272 | strcpy(path_with_reserve + pos, name);\r |
| 1273 | if (plat_is_dir(path_with_reserve))\r |
| 1274 | return;\r |
| 1275 | if (mkdir(path_with_reserve, 0777) < 0)\r |
| 1276 | lprintf("failed to create: %s\n", path_with_reserve);\r |
| 1277 | }\r |
| 1278 | \r |
| 1279 | void emu_init(void)\r |
| 1280 | {\r |
| 1281 | char path[512];\r |
| 1282 | int pos;\r |
| 1283 | \r |
| 1284 | /* make dirs for saves */\r |
| 1285 | pos = plat_get_root_dir(path, sizeof(path) - 4);\r |
| 1286 | mkdir_path(path, pos, "mds");\r |
| 1287 | mkdir_path(path, pos, "srm");\r |
| 1288 | mkdir_path(path, pos, "brm");\r |
| 1289 | \r |
| 1290 | make_config_cfg(path);\r |
| 1291 | config_readlrom(path);\r |
| 1292 | \r |
| 1293 | PicoInit();\r |
| 1294 | PicoMessage = plat_status_msg_busy_next;\r |
| 1295 | PicoMCDopenTray = emu_tray_open;\r |
| 1296 | PicoMCDcloseTray = emu_tray_close;\r |
| 1297 | }\r |
| 1298 | \r |
| 1299 | void emu_finish(void)\r |
| 1300 | {\r |
| 1301 | // save SRAM\r |
| 1302 | if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r |
| 1303 | emu_save_load_game(0, 1);\r |
| 1304 | SRam.changed = 0;\r |
| 1305 | }\r |
| 1306 | \r |
| 1307 | if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r |
| 1308 | char cfg[512];\r |
| 1309 | make_config_cfg(cfg);\r |
| 1310 | config_writelrom(cfg);\r |
| 1311 | #ifndef NO_SYNC\r |
| 1312 | sync();\r |
| 1313 | #endif\r |
| 1314 | }\r |
| 1315 | \r |
| 1316 | PicoExit();\r |
| 1317 | }\r |
| 1318 | \r |
| 1319 | static void skip_frame(int do_audio)\r |
| 1320 | {\r |
| 1321 | PicoSkipFrame = do_audio ? 1 : 2;\r |
| 1322 | PicoFrame();\r |
| 1323 | PicoSkipFrame = 0;\r |
| 1324 | }\r |
| 1325 | \r |
| 1326 | /* our tick here is 1 us right now */\r |
| 1327 | #define ms_to_ticks(x) (unsigned int)(x * 1000)\r |
| 1328 | #define get_ticks() plat_get_ticks_us()\r |
| 1329 | \r |
| 1330 | void emu_loop(void)\r |
| 1331 | {\r |
| 1332 | int pframes_done; /* "period" frames, used for sync */\r |
| 1333 | int frames_done, frames_shown; /* actual frames for fps counter */\r |
| 1334 | int target_fps, target_frametime;\r |
| 1335 | unsigned int timestamp_base = 0, timestamp_fps;\r |
| 1336 | char *notice_msg = NULL;\r |
| 1337 | char fpsbuff[24];\r |
| 1338 | int i;\r |
| 1339 | \r |
| 1340 | fpsbuff[0] = 0;\r |
| 1341 | \r |
| 1342 | /* make sure we are in correct mode */\r |
| 1343 | Pico.m.dirtyPal = 1;\r |
| 1344 | rendstatus_old = -1;\r |
| 1345 | \r |
| 1346 | /* number of ticks per frame */\r |
| 1347 | if (Pico.m.pal) {\r |
| 1348 | target_fps = 50;\r |
| 1349 | target_frametime = ms_to_ticks(1000) / 50;\r |
| 1350 | } else {\r |
| 1351 | target_fps = 60;\r |
| 1352 | target_frametime = ms_to_ticks(1000) / 60 + 1;\r |
| 1353 | }\r |
| 1354 | \r |
| 1355 | // prepare CD buffer\r |
| 1356 | if (PicoAHW & PAHW_MCD)\r |
| 1357 | PicoCDBufferInit();\r |
| 1358 | \r |
| 1359 | pemu_loop_prep();\r |
| 1360 | \r |
| 1361 | timestamp_fps = get_ticks();\r |
| 1362 | reset_timing = 1;\r |
| 1363 | \r |
| 1364 | frames_done = frames_shown = pframes_done = 0;\r |
| 1365 | \r |
| 1366 | plat_video_wait_vsync();\r |
| 1367 | \r |
| 1368 | /* loop with resync every 1 sec. */\r |
| 1369 | while (engineState == PGS_Running)\r |
| 1370 | {\r |
| 1371 | unsigned int timestamp;\r |
| 1372 | int diff, diff_lim;\r |
| 1373 | \r |
| 1374 | timestamp = get_ticks();\r |
| 1375 | if (reset_timing) {\r |
| 1376 | reset_timing = 0;\r |
| 1377 | timestamp_base = timestamp;\r |
| 1378 | pframes_done = 0;\r |
| 1379 | }\r |
| 1380 | \r |
| 1381 | // show notice_msg message?\r |
| 1382 | if (notice_msg_time != 0)\r |
| 1383 | {\r |
| 1384 | static int noticeMsgSum;\r |
| 1385 | if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {\r |
| 1386 | notice_msg_time = 0;\r |
| 1387 | plat_status_msg_clear();\r |
| 1388 | notice_msg = NULL;\r |
| 1389 | } else {\r |
| 1390 | int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];\r |
| 1391 | if (sum != noticeMsgSum) {\r |
| 1392 | plat_status_msg_clear();\r |
| 1393 | noticeMsgSum = sum;\r |
| 1394 | }\r |
| 1395 | notice_msg = noticeMsg;\r |
| 1396 | }\r |
| 1397 | }\r |
| 1398 | \r |
| 1399 | // second changed?\r |
| 1400 | if (timestamp - timestamp_fps >= ms_to_ticks(1000))\r |
| 1401 | {\r |
| 1402 | #ifdef BENCHMARK\r |
| 1403 | static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r |
| 1404 | if (++bench == 10) {\r |
| 1405 | bench = 0;\r |
| 1406 | bench_fps_s = bench_fps;\r |
| 1407 | bf[bfp++ & 3] = bench_fps;\r |
| 1408 | bench_fps = 0;\r |
| 1409 | }\r |
| 1410 | bench_fps += frames_shown;\r |
| 1411 | sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r |
| 1412 | #else\r |
| 1413 | if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {\r |
| 1414 | sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r |
| 1415 | if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r |
| 1416 | }\r |
| 1417 | #endif\r |
| 1418 | frames_shown = frames_done = 0;\r |
| 1419 | timestamp_fps += ms_to_ticks(1000);\r |
| 1420 | }\r |
| 1421 | #ifdef PFRAMES\r |
| 1422 | sprintf(fpsbuff, "%i", Pico.m.frame_count);\r |
| 1423 | #endif\r |
| 1424 | \r |
| 1425 | if (timestamp - timestamp_base >= ms_to_ticks(1000))\r |
| 1426 | {\r |
| 1427 | if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)\r |
| 1428 | pframes_done = 0;\r |
| 1429 | else {\r |
| 1430 | pframes_done -= target_fps;\r |
| 1431 | /* don't allow it to drift during heavy slowdowns */\r |
| 1432 | if (pframes_done < -5) {\r |
| 1433 | reset_timing = 1;\r |
| 1434 | continue;\r |
| 1435 | }\r |
| 1436 | if (pframes_done < -2)\r |
| 1437 | pframes_done = -2;\r |
| 1438 | }\r |
| 1439 | timestamp_base += ms_to_ticks(1000);\r |
| 1440 | }\r |
| 1441 | \r |
| 1442 | diff = timestamp - timestamp_base;\r |
| 1443 | diff_lim = (pframes_done + 1) * target_frametime;\r |
| 1444 | \r |
| 1445 | if (currentConfig.Frameskip >= 0) // frameskip enabled\r |
| 1446 | {\r |
| 1447 | for (i = 0; i < currentConfig.Frameskip; i++) {\r |
| 1448 | emu_update_input();\r |
| 1449 | skip_frame(1);\r |
| 1450 | pframes_done++; frames_done++;\r |
| 1451 | diff_lim += target_frametime;\r |
| 1452 | \r |
| 1453 | if (!(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) {\r |
| 1454 | timestamp = get_ticks();\r |
| 1455 | diff = timestamp - timestamp_base;\r |
| 1456 | if (!reset_timing && diff < diff_lim) // we are too fast\r |
| 1457 | plat_wait_till_us(timestamp_base + diff_lim);\r |
| 1458 | }\r |
| 1459 | }\r |
| 1460 | }\r |
| 1461 | else if (diff > diff_lim)\r |
| 1462 | {\r |
| 1463 | /* no time left for this frame - skip */\r |
| 1464 | if (diff - diff_lim >= ms_to_ticks(200)) {\r |
| 1465 | /* if too much behind, reset instead */\r |
| 1466 | reset_timing = 1;\r |
| 1467 | continue;\r |
| 1468 | }\r |
| 1469 | emu_update_input();\r |
| 1470 | skip_frame(diff < diff_lim + target_frametime * 2);\r |
| 1471 | pframes_done++; frames_done++;\r |
| 1472 | continue;\r |
| 1473 | }\r |
| 1474 | \r |
| 1475 | emu_update_input();\r |
| 1476 | PicoFrame();\r |
| 1477 | \r |
| 1478 | /* frame limiter */\r |
| 1479 | if (!reset_timing && !(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT))\r |
| 1480 | {\r |
| 1481 | timestamp = get_ticks();\r |
| 1482 | diff = timestamp - timestamp_base;\r |
| 1483 | \r |
| 1484 | // sleep or vsync if we are still too fast\r |
| 1485 | if (diff < diff_lim)\r |
| 1486 | {\r |
| 1487 | // we are too fast\r |
| 1488 | plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);\r |
| 1489 | if (currentConfig.EmuOpt & EOPT_VSYNC)\r |
| 1490 | plat_video_wait_vsync();\r |
| 1491 | }\r |
| 1492 | }\r |
| 1493 | \r |
| 1494 | pemu_update_display(fpsbuff, notice_msg);\r |
| 1495 | \r |
| 1496 | pframes_done++; frames_done++; frames_shown++;\r |
| 1497 | }\r |
| 1498 | \r |
| 1499 | emu_set_fastforward(0);\r |
| 1500 | \r |
| 1501 | // save SRAM\r |
| 1502 | if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r |
| 1503 | plat_status_msg_busy_first("Writing SRAM/BRAM...");\r |
| 1504 | emu_save_load_game(0, 1);\r |
| 1505 | SRam.changed = 0;\r |
| 1506 | }\r |
| 1507 | \r |
| 1508 | pemu_loop_end();\r |
| 1509 | \r |
| 1510 | // pemu_loop_end() might want to do 1 frame for bg image,\r |
| 1511 | // so free CD buffer here\r |
| 1512 | if (PicoAHW & PAHW_MCD)\r |
| 1513 | PicoCDBufferFree();\r |
| 1514 | }\r |
| 1515 | \r |