| 1 | /*************************************************************************** |
| 2 | * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team * |
| 3 | * * |
| 4 | * This program is free software; you can redistribute it and/or modify * |
| 5 | * it under the terms of the GNU General Public License as published by * |
| 6 | * the Free Software Foundation; either version 2 of the License, or * |
| 7 | * (at your option) any later version. * |
| 8 | * * |
| 9 | * This program is distributed in the hope that it will be useful, * |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 12 | * GNU General Public License for more details. * |
| 13 | * * |
| 14 | * You should have received a copy of the GNU General Public License * |
| 15 | * along with this program; if not, write to the * |
| 16 | * Free Software Foundation, Inc., * |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * |
| 18 | ***************************************************************************/ |
| 19 | |
| 20 | /* |
| 21 | * Miscellaneous functions, including savestates and CD-ROM loading. |
| 22 | */ |
| 23 | |
| 24 | #include "misc.h" |
| 25 | #include "cdrom.h" |
| 26 | #include "mdec.h" |
| 27 | #include "ppf.h" |
| 28 | |
| 29 | char CdromId[10] = ""; |
| 30 | char CdromLabel[33] = ""; |
| 31 | |
| 32 | // PSX Executable types |
| 33 | #define PSX_EXE 1 |
| 34 | #define CPE_EXE 2 |
| 35 | #define COFF_EXE 3 |
| 36 | #define INVALID_EXE 4 |
| 37 | |
| 38 | #define ISODCL(from, to) (to - from + 1) |
| 39 | |
| 40 | struct iso_directory_record { |
| 41 | char length [ISODCL (1, 1)]; /* 711 */ |
| 42 | char ext_attr_length [ISODCL (2, 2)]; /* 711 */ |
| 43 | char extent [ISODCL (3, 10)]; /* 733 */ |
| 44 | char size [ISODCL (11, 18)]; /* 733 */ |
| 45 | char date [ISODCL (19, 25)]; /* 7 by 711 */ |
| 46 | char flags [ISODCL (26, 26)]; |
| 47 | char file_unit_size [ISODCL (27, 27)]; /* 711 */ |
| 48 | char interleave [ISODCL (28, 28)]; /* 711 */ |
| 49 | char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ |
| 50 | unsigned char name_len [ISODCL (33, 33)]; /* 711 */ |
| 51 | char name [1]; |
| 52 | }; |
| 53 | |
| 54 | void mmssdd( char *b, char *p ) |
| 55 | { |
| 56 | int m, s, d; |
| 57 | #if defined(__arm__) |
| 58 | int block = (b[3] << 24) | (b[2] << 16) | (b[1] << 8) | b[0]; |
| 59 | #elif defined(__BIGENDIAN__) |
| 60 | int block = (b[0] & 0xff) | ((b[1] & 0xff) << 8) | ((b[2] & 0xff) << 16) | (b[3] << 24); |
| 61 | #else |
| 62 | int block = *((int*)b); |
| 63 | #endif |
| 64 | |
| 65 | block += 150; |
| 66 | m = block / 4500; // minutes |
| 67 | block = block - m * 4500; // minutes rest |
| 68 | s = block / 75; // seconds |
| 69 | d = block - s * 75; // seconds rest |
| 70 | |
| 71 | m = ((m / 10) << 4) | m % 10; |
| 72 | s = ((s / 10) << 4) | s % 10; |
| 73 | d = ((d / 10) << 4) | d % 10; |
| 74 | |
| 75 | p[0] = m; |
| 76 | p[1] = s; |
| 77 | p[2] = d; |
| 78 | } |
| 79 | |
| 80 | #define incTime() \ |
| 81 | time[0] = btoi(time[0]); time[1] = btoi(time[1]); time[2] = btoi(time[2]); \ |
| 82 | time[2]++; \ |
| 83 | if(time[2] == 75) { \ |
| 84 | time[2] = 0; \ |
| 85 | time[1]++; \ |
| 86 | if (time[1] == 60) { \ |
| 87 | time[1] = 0; \ |
| 88 | time[0]++; \ |
| 89 | } \ |
| 90 | } \ |
| 91 | time[0] = itob(time[0]); time[1] = itob(time[1]); time[2] = itob(time[2]); |
| 92 | |
| 93 | #define READTRACK() \ |
| 94 | if (CDR_readTrack(time) == -1) return -1; \ |
| 95 | buf = CDR_getBuffer(); \ |
| 96 | if (buf == NULL) return -1; else CheckPPFCache(buf, time[0], time[1], time[2]); |
| 97 | |
| 98 | #define READDIR(_dir) \ |
| 99 | READTRACK(); \ |
| 100 | memcpy(_dir, buf + 12, 2048); \ |
| 101 | \ |
| 102 | incTime(); \ |
| 103 | READTRACK(); \ |
| 104 | memcpy(_dir + 2048, buf + 12, 2048); |
| 105 | |
| 106 | int GetCdromFile(u8 *mdir, u8 *time, s8 *filename) { |
| 107 | struct iso_directory_record *dir; |
| 108 | char ddir[4096]; |
| 109 | u8 *buf; |
| 110 | int i; |
| 111 | |
| 112 | // only try to scan if a filename is given |
| 113 | if (!strlen(filename)) return -1; |
| 114 | |
| 115 | i = 0; |
| 116 | while (i < 4096) { |
| 117 | dir = (struct iso_directory_record*) &mdir[i]; |
| 118 | if (dir->length[0] == 0) { |
| 119 | return -1; |
| 120 | } |
| 121 | i += dir->length[0]; |
| 122 | |
| 123 | if (dir->flags[0] & 0x2) { // it's a dir |
| 124 | if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) { |
| 125 | if (filename[dir->name_len[0]] != '\\') continue; |
| 126 | |
| 127 | filename += dir->name_len[0] + 1; |
| 128 | |
| 129 | mmssdd(dir->extent, (char *)time); |
| 130 | READDIR(ddir); |
| 131 | i = 0; |
| 132 | mdir = ddir; |
| 133 | } |
| 134 | } else { |
| 135 | if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) { |
| 136 | mmssdd(dir->extent, (char *)time); |
| 137 | break; |
| 138 | } |
| 139 | } |
| 140 | } |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | int LoadCdrom() { |
| 145 | EXE_HEADER tmpHead; |
| 146 | struct iso_directory_record *dir; |
| 147 | u8 time[4], *buf; |
| 148 | u8 mdir[4096]; |
| 149 | s8 exename[256]; |
| 150 | |
| 151 | if (!Config.HLE) { |
| 152 | psxRegs.pc = psxRegs.GPR.n.ra; |
| 153 | return 0; |
| 154 | } |
| 155 | |
| 156 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); |
| 157 | |
| 158 | READTRACK(); |
| 159 | |
| 160 | // skip head and sub, and go to the root directory record |
| 161 | dir = (struct iso_directory_record*) &buf[12+156]; |
| 162 | |
| 163 | mmssdd(dir->extent, (char*)time); |
| 164 | |
| 165 | READDIR(mdir); |
| 166 | |
| 167 | // Load SYSTEM.CNF and scan for the main executable |
| 168 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { |
| 169 | // if SYSTEM.CNF is missing, start an existing PSX.EXE |
| 170 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; |
| 171 | |
| 172 | READTRACK(); |
| 173 | } |
| 174 | else { |
| 175 | // read the SYSTEM.CNF |
| 176 | READTRACK(); |
| 177 | |
| 178 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%256s", exename); |
| 179 | if (GetCdromFile(mdir, time, exename) == -1) { |
| 180 | sscanf((char *)buf + 12, "BOOT = cdrom:%256s", exename); |
| 181 | if (GetCdromFile(mdir, time, exename) == -1) { |
| 182 | char *ptr = strstr(buf + 12, "cdrom:"); |
| 183 | if (ptr != NULL) { |
| 184 | ptr += 6; |
| 185 | while (*ptr == '\\' || *ptr == '/') ptr++; |
| 186 | strncpy(exename, ptr, 255); |
| 187 | exename[255] = '\0'; |
| 188 | ptr = exename; |
| 189 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; |
| 190 | *ptr = '\0'; |
| 191 | if (GetCdromFile(mdir, time, exename) == -1) |
| 192 | return -1; |
| 193 | } else |
| 194 | return -1; |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | // Read the EXE-Header |
| 199 | READTRACK(); |
| 200 | } |
| 201 | |
| 202 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); |
| 203 | |
| 204 | psxRegs.pc = SWAP32(tmpHead.pc0); |
| 205 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); |
| 206 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); |
| 207 | if (psxRegs.GPR.n.sp == 0) psxRegs.GPR.n.sp = 0x801fff00; |
| 208 | |
| 209 | tmpHead.t_size = SWAP32(tmpHead.t_size); |
| 210 | tmpHead.t_addr = SWAP32(tmpHead.t_addr); |
| 211 | |
| 212 | // Read the rest of the main executable |
| 213 | while (tmpHead.t_size) { |
| 214 | void *ptr = (void *)PSXM(tmpHead.t_addr); |
| 215 | |
| 216 | incTime(); |
| 217 | READTRACK(); |
| 218 | |
| 219 | if (ptr != NULL) memcpy(ptr, buf+12, 2048); |
| 220 | |
| 221 | tmpHead.t_size -= 2048; |
| 222 | tmpHead.t_addr += 2048; |
| 223 | } |
| 224 | |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { |
| 229 | struct iso_directory_record *dir; |
| 230 | u8 time[4],*buf; |
| 231 | u8 mdir[4096], exename[256]; |
| 232 | u32 size, addr; |
| 233 | |
| 234 | sscanf(filename, "cdrom:\\%256s", exename); |
| 235 | |
| 236 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); |
| 237 | |
| 238 | READTRACK(); |
| 239 | |
| 240 | // skip head and sub, and go to the root directory record |
| 241 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
| 242 | |
| 243 | mmssdd(dir->extent, (char*)time); |
| 244 | |
| 245 | READDIR(mdir); |
| 246 | |
| 247 | if (GetCdromFile(mdir, time, exename) == -1) return -1; |
| 248 | |
| 249 | READTRACK(); |
| 250 | |
| 251 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); |
| 252 | size = head->t_size; |
| 253 | addr = head->t_addr; |
| 254 | |
| 255 | while (size) { |
| 256 | incTime(); |
| 257 | READTRACK(); |
| 258 | |
| 259 | memcpy((void *)PSXM(addr), buf + 12, 2048); |
| 260 | |
| 261 | size -= 2048; |
| 262 | addr += 2048; |
| 263 | } |
| 264 | |
| 265 | return 0; |
| 266 | } |
| 267 | |
| 268 | int CheckCdrom() { |
| 269 | struct iso_directory_record *dir; |
| 270 | unsigned char time[4], *buf; |
| 271 | unsigned char mdir[4096]; |
| 272 | char exename[256]; |
| 273 | int i, c; |
| 274 | |
| 275 | FreePPFCache(); |
| 276 | |
| 277 | time[0] = itob(0); |
| 278 | time[1] = itob(2); |
| 279 | time[2] = itob(0x10); |
| 280 | |
| 281 | READTRACK(); |
| 282 | |
| 283 | CdromLabel[0] = '\0'; |
| 284 | CdromId[0] = '\0'; |
| 285 | |
| 286 | strncpy(CdromLabel, buf + 52, 32); |
| 287 | |
| 288 | // skip head and sub, and go to the root directory record |
| 289 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
| 290 | |
| 291 | mmssdd(dir->extent, (char *)time); |
| 292 | |
| 293 | READDIR(mdir); |
| 294 | |
| 295 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { |
| 296 | READTRACK(); |
| 297 | |
| 298 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%256s", exename); |
| 299 | if (GetCdromFile(mdir, time, exename) == -1) { |
| 300 | sscanf((char *)buf + 12, "BOOT = cdrom:%256s", exename); |
| 301 | if (GetCdromFile(mdir, time, exename) == -1) { |
| 302 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir |
| 303 | if (ptr != NULL) { |
| 304 | ptr += 6; |
| 305 | while (*ptr == '\\' || *ptr == '/') ptr++; |
| 306 | strncpy(exename, ptr, 255); |
| 307 | exename[255] = '\0'; |
| 308 | ptr = exename; |
| 309 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; |
| 310 | *ptr = '\0'; |
| 311 | if (GetCdromFile(mdir, time, exename) == -1) |
| 312 | return -1; // main executable not found |
| 313 | } else |
| 314 | return -1; |
| 315 | } |
| 316 | } |
| 317 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { |
| 318 | strcpy(exename, "PSX.EXE;1"); |
| 319 | strcpy(CdromId, "SLUS99999"); |
| 320 | } else |
| 321 | return -1; // SYSTEM.CNF and PSX.EXE not found |
| 322 | |
| 323 | if (CdromId[0] == '\0') { |
| 324 | i = strlen(exename); |
| 325 | if (i >= 2) { |
| 326 | if (exename[i - 2] == ';') i-= 2; |
| 327 | c = 8; i--; |
| 328 | while (i >= 0 && c >= 0) { |
| 329 | if (isalnum(exename[i])) CdromId[c--] = exename[i]; |
| 330 | i--; |
| 331 | } |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
| 336 | if (CdromId[2] == 'e' || CdromId[2] == 'E') |
| 337 | Config.PsxType = PSX_TYPE_PAL; // pal |
| 338 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc |
| 339 | } |
| 340 | |
| 341 | if (CdromLabel[0] == ' ') { |
| 342 | strncpy(CdromLabel, CdromId, 9); |
| 343 | } |
| 344 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); |
| 345 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); |
| 346 | |
| 347 | BuildPPFCache(); |
| 348 | |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | static int PSXGetFileType(FILE *f) { |
| 353 | unsigned long current; |
| 354 | u8 mybuf[2048]; |
| 355 | EXE_HEADER *exe_hdr; |
| 356 | FILHDR *coff_hdr; |
| 357 | |
| 358 | current = ftell(f); |
| 359 | fseek(f, 0L, SEEK_SET); |
| 360 | fread(mybuf, 2048, 1, f); |
| 361 | fseek(f, current, SEEK_SET); |
| 362 | |
| 363 | exe_hdr = (EXE_HEADER *)mybuf; |
| 364 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) |
| 365 | return PSX_EXE; |
| 366 | |
| 367 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') |
| 368 | return CPE_EXE; |
| 369 | |
| 370 | coff_hdr = (FILHDR *)mybuf; |
| 371 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) |
| 372 | return COFF_EXE; |
| 373 | |
| 374 | return INVALID_EXE; |
| 375 | } |
| 376 | |
| 377 | int Load(const char *ExePath) { |
| 378 | FILE *tmpFile; |
| 379 | EXE_HEADER tmpHead; |
| 380 | int type; |
| 381 | int retval = 0; |
| 382 | u8 opcode; |
| 383 | u32 section_address, section_size; |
| 384 | |
| 385 | strncpy(CdromId, "SLUS99999", 9); |
| 386 | strncpy(CdromLabel, "SLUS_999.99", 11); |
| 387 | |
| 388 | tmpFile = fopen(ExePath, "rb"); |
| 389 | if (tmpFile == NULL) { |
| 390 | SysPrintf(_("Error opening file: %s.\n"), ExePath); |
| 391 | retval = -1; |
| 392 | } else { |
| 393 | type = PSXGetFileType(tmpFile); |
| 394 | switch (type) { |
| 395 | case PSX_EXE: |
| 396 | fread(&tmpHead,sizeof(EXE_HEADER),1,tmpFile); |
| 397 | fseek(tmpFile, 0x800, SEEK_SET); |
| 398 | fread((void *)PSXM(SWAP32(tmpHead.t_addr)), SWAP32(tmpHead.t_size),1,tmpFile); |
| 399 | fclose(tmpFile); |
| 400 | psxRegs.pc = SWAP32(tmpHead.pc0); |
| 401 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); |
| 402 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); |
| 403 | if (psxRegs.GPR.n.sp == 0) |
| 404 | psxRegs.GPR.n.sp = 0x801fff00; |
| 405 | retval = 0; |
| 406 | break; |
| 407 | case CPE_EXE: |
| 408 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ |
| 409 | do { |
| 410 | fread(&opcode, 1, 1, tmpFile); |
| 411 | switch (opcode) { |
| 412 | case 1: /* Section loading */ |
| 413 | fread(§ion_address, 4, 1, tmpFile); |
| 414 | fread(§ion_size, 4, 1, tmpFile); |
| 415 | section_address = SWAPu32(section_address); |
| 416 | section_size = SWAPu32(section_size); |
| 417 | #ifdef EMU_LOG |
| 418 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); |
| 419 | #endif |
| 420 | fread(PSXM(section_address), section_size, 1, tmpFile); |
| 421 | break; |
| 422 | case 3: /* register loading (PC only?) */ |
| 423 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ |
| 424 | fread(&psxRegs.pc, 4, 1, tmpFile); |
| 425 | psxRegs.pc = SWAPu32(psxRegs.pc); |
| 426 | break; |
| 427 | case 0: /* End of file */ |
| 428 | break; |
| 429 | default: |
| 430 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); |
| 431 | retval = -1; |
| 432 | break; |
| 433 | } |
| 434 | } while (opcode != 0 && retval == 0); |
| 435 | break; |
| 436 | case COFF_EXE: |
| 437 | SysPrintf(_("COFF files not supported.\n")); |
| 438 | retval = -1; |
| 439 | break; |
| 440 | case INVALID_EXE: |
| 441 | SysPrintf(_("This file does not appear to be a valid PSX file.\n")); |
| 442 | retval = -1; |
| 443 | break; |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | if (retval != 0) { |
| 448 | CdromId[0] = '\0'; |
| 449 | CdromLabel[0] = '\0'; |
| 450 | } |
| 451 | |
| 452 | return retval; |
| 453 | } |
| 454 | |
| 455 | // STATES |
| 456 | |
| 457 | static const char PcsxHeader[32] = "STv4 PCSX v" PACKAGE_VERSION; |
| 458 | |
| 459 | // Savestate Versioning! |
| 460 | // If you make changes to the savestate version, please increment the value below. |
| 461 | static const u32 SaveVersion = 0x8b410006; |
| 462 | |
| 463 | int SaveState(const char *file) { |
| 464 | gzFile f; |
| 465 | GPUFreeze_t *gpufP; |
| 466 | SPUFreeze_t *spufP; |
| 467 | int Size; |
| 468 | unsigned char *pMem; |
| 469 | |
| 470 | f = gzopen(file, "wb"); |
| 471 | if (f == NULL) return -1; |
| 472 | |
| 473 | new_dyna_save(); |
| 474 | |
| 475 | gzwrite(f, (void *)PcsxHeader, 32); |
| 476 | gzwrite(f, (void *)&SaveVersion, sizeof(u32)); |
| 477 | gzwrite(f, (void *)&Config.HLE, sizeof(boolean)); |
| 478 | |
| 479 | pMem = (unsigned char *)malloc(128 * 96 * 3); |
| 480 | if (pMem == NULL) return -1; |
| 481 | GPU_getScreenPic(pMem); |
| 482 | gzwrite(f, pMem, 128 * 96 * 3); |
| 483 | free(pMem); |
| 484 | |
| 485 | if (Config.HLE) |
| 486 | psxBiosFreeze(1); |
| 487 | |
| 488 | gzwrite(f, psxM, 0x00200000); |
| 489 | gzwrite(f, psxR, 0x00080000); |
| 490 | gzwrite(f, psxH, 0x00010000); |
| 491 | gzwrite(f, (void *)&psxRegs, sizeof(psxRegs)); |
| 492 | |
| 493 | // gpu |
| 494 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); |
| 495 | gpufP->ulFreezeVersion = 1; |
| 496 | GPU_freeze(1, gpufP); |
| 497 | gzwrite(f, gpufP, sizeof(GPUFreeze_t)); |
| 498 | free(gpufP); |
| 499 | |
| 500 | // spu |
| 501 | spufP = (SPUFreeze_t *) malloc(16); |
| 502 | SPU_freeze(2, spufP); |
| 503 | Size = spufP->Size; gzwrite(f, &Size, 4); |
| 504 | free(spufP); |
| 505 | spufP = (SPUFreeze_t *) malloc(Size); |
| 506 | SPU_freeze(1, spufP); |
| 507 | gzwrite(f, spufP, Size); |
| 508 | free(spufP); |
| 509 | |
| 510 | sioFreeze(f, 1); |
| 511 | cdrFreeze(f, 1); |
| 512 | psxHwFreeze(f, 1); |
| 513 | psxRcntFreeze(f, 1); |
| 514 | mdecFreeze(f, 1); |
| 515 | |
| 516 | gzclose(f); |
| 517 | |
| 518 | return 0; |
| 519 | } |
| 520 | |
| 521 | int LoadState(const char *file) { |
| 522 | gzFile f; |
| 523 | GPUFreeze_t *gpufP; |
| 524 | SPUFreeze_t *spufP; |
| 525 | int Size; |
| 526 | char header[32]; |
| 527 | u32 version; |
| 528 | boolean hle; |
| 529 | |
| 530 | f = gzopen(file, "rb"); |
| 531 | if (f == NULL) return -1; |
| 532 | |
| 533 | gzread(f, header, sizeof(header)); |
| 534 | gzread(f, &version, sizeof(u32)); |
| 535 | gzread(f, &hle, sizeof(boolean)); |
| 536 | |
| 537 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
| 538 | gzclose(f); |
| 539 | return -1; |
| 540 | } |
| 541 | Config.HLE = hle; |
| 542 | |
| 543 | if (Config.HLE) |
| 544 | psxBiosInit(); |
| 545 | |
| 546 | psxCpu->Reset(); |
| 547 | gzseek(f, 128 * 96 * 3, SEEK_CUR); |
| 548 | |
| 549 | gzread(f, psxM, 0x00200000); |
| 550 | gzread(f, psxR, 0x00080000); |
| 551 | gzread(f, psxH, 0x00010000); |
| 552 | gzread(f, (void *)&psxRegs, sizeof(psxRegs)); |
| 553 | |
| 554 | if (Config.HLE) |
| 555 | psxBiosFreeze(0); |
| 556 | |
| 557 | // gpu |
| 558 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); |
| 559 | gzread(f, gpufP, sizeof(GPUFreeze_t)); |
| 560 | GPU_freeze(0, gpufP); |
| 561 | free(gpufP); |
| 562 | |
| 563 | // spu |
| 564 | gzread(f, &Size, 4); |
| 565 | spufP = (SPUFreeze_t *)malloc(Size); |
| 566 | gzread(f, spufP, Size); |
| 567 | SPU_freeze(0, spufP); |
| 568 | free(spufP); |
| 569 | |
| 570 | sioFreeze(f, 0); |
| 571 | cdrFreeze(f, 0); |
| 572 | psxHwFreeze(f, 0); |
| 573 | psxRcntFreeze(f, 0); |
| 574 | mdecFreeze(f, 0); |
| 575 | |
| 576 | gzclose(f); |
| 577 | new_dyna_restore(); |
| 578 | |
| 579 | return 0; |
| 580 | } |
| 581 | |
| 582 | int CheckState(const char *file) { |
| 583 | gzFile f; |
| 584 | char header[32]; |
| 585 | u32 version; |
| 586 | boolean hle; |
| 587 | |
| 588 | f = gzopen(file, "rb"); |
| 589 | if (f == NULL) return -1; |
| 590 | |
| 591 | gzread(f, header, sizeof(header)); |
| 592 | gzread(f, &version, sizeof(u32)); |
| 593 | gzread(f, &hle, sizeof(boolean)); |
| 594 | |
| 595 | gzclose(f); |
| 596 | |
| 597 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
| 598 | return -1; |
| 599 | |
| 600 | return 0; |
| 601 | } |
| 602 | |
| 603 | // NET Function Helpers |
| 604 | |
| 605 | int SendPcsxInfo() { |
| 606 | if (NET_recvData == NULL || NET_sendData == NULL) |
| 607 | return 0; |
| 608 | |
| 609 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
| 610 | NET_sendData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); |
| 611 | NET_sendData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); |
| 612 | NET_sendData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); |
| 613 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
| 614 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); |
| 615 | |
| 616 | return 0; |
| 617 | } |
| 618 | |
| 619 | int RecvPcsxInfo() { |
| 620 | int tmp; |
| 621 | |
| 622 | if (NET_recvData == NULL || NET_sendData == NULL) |
| 623 | return 0; |
| 624 | |
| 625 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
| 626 | NET_recvData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); |
| 627 | NET_recvData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); |
| 628 | NET_recvData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); |
| 629 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
| 630 | |
| 631 | SysUpdate(); |
| 632 | |
| 633 | tmp = Config.Cpu; |
| 634 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); |
| 635 | if (tmp != Config.Cpu) { |
| 636 | psxCpu->Shutdown(); |
| 637 | #ifdef PSXREC |
| 638 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
| 639 | else psxCpu = &psxRec; |
| 640 | #else |
| 641 | psxCpu = &psxInt; |
| 642 | #endif |
| 643 | if (psxCpu->Init() == -1) { |
| 644 | SysClose(); return -1; |
| 645 | } |
| 646 | psxCpu->Reset(); |
| 647 | } |
| 648 | |
| 649 | return 0; |
| 650 | } |
| 651 | |
| 652 | // remove the leading and trailing spaces in a string |
| 653 | void trim(char *str) { |
| 654 | int pos = 0; |
| 655 | char *dest = str; |
| 656 | |
| 657 | // skip leading blanks |
| 658 | while (str[pos] <= ' ' && str[pos] > 0) |
| 659 | pos++; |
| 660 | |
| 661 | while (str[pos]) { |
| 662 | *(dest++) = str[pos]; |
| 663 | pos++; |
| 664 | } |
| 665 | |
| 666 | *(dest--) = '\0'; // store the null |
| 667 | |
| 668 | // remove trailing blanks |
| 669 | while (dest >= str && *dest <= ' ' && *dest > 0) |
| 670 | *(dest--) = '\0'; |
| 671 | } |
| 672 | |
| 673 | // lookup table for crc calculation |
| 674 | static unsigned short crctab[256] = { |
| 675 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, |
| 676 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, |
| 677 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, |
| 678 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, |
| 679 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, |
| 680 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, |
| 681 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, |
| 682 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, |
| 683 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, |
| 684 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, |
| 685 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, |
| 686 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, |
| 687 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, |
| 688 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, |
| 689 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, |
| 690 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, |
| 691 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, |
| 692 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, |
| 693 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, |
| 694 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, |
| 695 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, |
| 696 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, |
| 697 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, |
| 698 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, |
| 699 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, |
| 700 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, |
| 701 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, |
| 702 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, |
| 703 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 |
| 704 | }; |
| 705 | |
| 706 | u16 calcCrc(u8 *d, int len) { |
| 707 | u16 crc = 0; |
| 708 | int i; |
| 709 | |
| 710 | for (i = 0; i < len; i++) { |
| 711 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); |
| 712 | } |
| 713 | |
| 714 | return ~crc; |
| 715 | } |