notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| ef79bbde P |
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" | |
| ddbaf678 | 27 | #include "gpu.h" |
| ef79bbde P |
28 | #include "ppf.h" |
| 29 | ||
| 30 | char CdromId[10] = ""; | |
| 31 | char CdromLabel[33] = ""; | |
| 32 | ||
| 33 | // PSX Executable types | |
| 34 | #define PSX_EXE 1 | |
| 35 | #define CPE_EXE 2 | |
| 36 | #define COFF_EXE 3 | |
| 37 | #define INVALID_EXE 4 | |
| 38 | ||
| 39 | #define ISODCL(from, to) (to - from + 1) | |
| 40 | ||
| 41 | struct iso_directory_record { | |
| 42 | char length [ISODCL (1, 1)]; /* 711 */ | |
| 43 | char ext_attr_length [ISODCL (2, 2)]; /* 711 */ | |
| 44 | char extent [ISODCL (3, 10)]; /* 733 */ | |
| 45 | char size [ISODCL (11, 18)]; /* 733 */ | |
| 46 | char date [ISODCL (19, 25)]; /* 7 by 711 */ | |
| 47 | char flags [ISODCL (26, 26)]; | |
| 48 | char file_unit_size [ISODCL (27, 27)]; /* 711 */ | |
| 49 | char interleave [ISODCL (28, 28)]; /* 711 */ | |
| 50 | char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ | |
| 51 | unsigned char name_len [ISODCL (33, 33)]; /* 711 */ | |
| 52 | char name [1]; | |
| 53 | }; | |
| 54 | ||
| 55 | void mmssdd( char *b, char *p ) | |
| 56 | { | |
| 57 | int m, s, d; | |
| 507aaf98 | 58 | #if defined(__arm__) |
| 59 | int block = (b[3] << 24) | (b[2] << 16) | (b[1] << 8) | b[0]; | |
| 60 | #elif defined(__BIGENDIAN__) | |
| ef79bbde P |
61 | int block = (b[0] & 0xff) | ((b[1] & 0xff) << 8) | ((b[2] & 0xff) << 16) | (b[3] << 24); |
| 62 | #else | |
| 63 | int block = *((int*)b); | |
| 64 | #endif | |
| 65 | ||
| 66 | block += 150; | |
| 67 | m = block / 4500; // minutes | |
| 68 | block = block - m * 4500; // minutes rest | |
| 69 | s = block / 75; // seconds | |
| 70 | d = block - s * 75; // seconds rest | |
| 71 | ||
| 72 | m = ((m / 10) << 4) | m % 10; | |
| 73 | s = ((s / 10) << 4) | s % 10; | |
| 74 | d = ((d / 10) << 4) | d % 10; | |
| 75 | ||
| 76 | p[0] = m; | |
| 77 | p[1] = s; | |
| 78 | p[2] = d; | |
| 79 | } | |
| 80 | ||
| 81 | #define incTime() \ | |
| 82 | time[0] = btoi(time[0]); time[1] = btoi(time[1]); time[2] = btoi(time[2]); \ | |
| 83 | time[2]++; \ | |
| 84 | if(time[2] == 75) { \ | |
| 85 | time[2] = 0; \ | |
| 86 | time[1]++; \ | |
| 87 | if (time[1] == 60) { \ | |
| 88 | time[1] = 0; \ | |
| 89 | time[0]++; \ | |
| 90 | } \ | |
| 91 | } \ | |
| 92 | time[0] = itob(time[0]); time[1] = itob(time[1]); time[2] = itob(time[2]); | |
| 93 | ||
| 94 | #define READTRACK() \ | |
| 95 | if (CDR_readTrack(time) == -1) return -1; \ | |
| 305c8c93 | 96 | buf = (void *)CDR_getBuffer(); \ |
| 97 | if (buf == NULL) return -1; \ | |
| 98 | else CheckPPFCache((u8 *)buf, time[0], time[1], time[2]); | |
| ef79bbde P |
99 | |
| 100 | #define READDIR(_dir) \ | |
| 101 | READTRACK(); \ | |
| 102 | memcpy(_dir, buf + 12, 2048); \ | |
| 103 | \ | |
| 104 | incTime(); \ | |
| 105 | READTRACK(); \ | |
| 106 | memcpy(_dir + 2048, buf + 12, 2048); | |
| 107 | ||
| 305c8c93 | 108 | int GetCdromFile(u8 *mdir, u8 *time, char *filename) { |
| ef79bbde | 109 | struct iso_directory_record *dir; |
| 305c8c93 | 110 | u8 ddir[4096]; |
| ef79bbde P |
111 | u8 *buf; |
| 112 | int i; | |
| 113 | ||
| 114 | // only try to scan if a filename is given | |
| 115 | if (!strlen(filename)) return -1; | |
| 116 | ||
| 117 | i = 0; | |
| 118 | while (i < 4096) { | |
| 119 | dir = (struct iso_directory_record*) &mdir[i]; | |
| 120 | if (dir->length[0] == 0) { | |
| 121 | return -1; | |
| 122 | } | |
| 123 | i += dir->length[0]; | |
| 124 | ||
| 125 | if (dir->flags[0] & 0x2) { // it's a dir | |
| 126 | if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) { | |
| 127 | if (filename[dir->name_len[0]] != '\\') continue; | |
| 128 | ||
| 129 | filename += dir->name_len[0] + 1; | |
| 130 | ||
| 131 | mmssdd(dir->extent, (char *)time); | |
| 132 | READDIR(ddir); | |
| 133 | i = 0; | |
| 134 | mdir = ddir; | |
| 135 | } | |
| 136 | } else { | |
| 137 | if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) { | |
| 138 | mmssdd(dir->extent, (char *)time); | |
| 139 | break; | |
| 140 | } | |
| 141 | } | |
| 142 | } | |
| 143 | return 0; | |
| 144 | } | |
| 145 | ||
| f3a78e7e | 146 | static const unsigned int gpu_ctl_def[] = { |
| 147 | 0x00000000, 0x01000000, 0x03000000, 0x04000000, | |
| 148 | 0x05000800, 0x06c60260, 0x0703fc10, 0x08000027, | |
| 149 | }; | |
| 150 | ||
| 151 | static const unsigned int gpu_data_def[] = { | |
| 152 | 0xe100360b, 0xe2000000, 0xe3000800, 0xe4077e7f, | |
| 153 | 0xe5001000, 0xe6000000, | |
| 154 | 0x02000000, 0x00000000, 0x01ff03ff, | |
| 155 | }; | |
| 156 | ||
| 157 | static void fake_bios_gpu_setup(void) | |
| 158 | { | |
| 159 | int i; | |
| 160 | ||
| 161 | for (i = 0; i < sizeof(gpu_ctl_def) / sizeof(gpu_ctl_def[0]); i++) | |
| 162 | GPU_writeStatus(gpu_ctl_def[i]); | |
| 163 | ||
| 164 | for (i = 0; i < sizeof(gpu_data_def) / sizeof(gpu_data_def[0]); i++) | |
| 165 | GPU_writeData(gpu_data_def[i]); | |
| 166 | } | |
| 167 | ||
| ef79bbde P |
168 | int LoadCdrom() { |
| 169 | EXE_HEADER tmpHead; | |
| 170 | struct iso_directory_record *dir; | |
| 171 | u8 time[4], *buf; | |
| 172 | u8 mdir[4096]; | |
| 305c8c93 | 173 | char exename[256]; |
| ef79bbde | 174 | |
| f3a78e7e | 175 | // not the best place to do it, but since BIOS boot logo killer |
| 176 | // is just below, do it here | |
| 177 | fake_bios_gpu_setup(); | |
| 178 | ||
| ef79bbde | 179 | if (!Config.HLE) { |
| f3a78e7e | 180 | // skip BIOS logos |
| ef79bbde P |
181 | psxRegs.pc = psxRegs.GPR.n.ra; |
| 182 | return 0; | |
| 183 | } | |
| 184 | ||
| 185 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
| 186 | ||
| 187 | READTRACK(); | |
| 188 | ||
| 189 | // skip head and sub, and go to the root directory record | |
| 190 | dir = (struct iso_directory_record*) &buf[12+156]; | |
| 191 | ||
| 192 | mmssdd(dir->extent, (char*)time); | |
| 193 | ||
| 194 | READDIR(mdir); | |
| 195 | ||
| 196 | // Load SYSTEM.CNF and scan for the main executable | |
| 197 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { | |
| 198 | // if SYSTEM.CNF is missing, start an existing PSX.EXE | |
| 199 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; | |
| 200 | ||
| 201 | READTRACK(); | |
| 202 | } | |
| 203 | else { | |
| 204 | // read the SYSTEM.CNF | |
| 205 | READTRACK(); | |
| 206 | ||
| 207 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%256s", exename); | |
| 208 | if (GetCdromFile(mdir, time, exename) == -1) { | |
| 209 | sscanf((char *)buf + 12, "BOOT = cdrom:%256s", exename); | |
| 210 | if (GetCdromFile(mdir, time, exename) == -1) { | |
| 305c8c93 | 211 | char *ptr = strstr((char *)buf + 12, "cdrom:"); |
| ef79bbde P |
212 | if (ptr != NULL) { |
| 213 | ptr += 6; | |
| 214 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
| 215 | strncpy(exename, ptr, 255); | |
| 216 | exename[255] = '\0'; | |
| 217 | ptr = exename; | |
| 218 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
| 219 | *ptr = '\0'; | |
| 220 | if (GetCdromFile(mdir, time, exename) == -1) | |
| 221 | return -1; | |
| 222 | } else | |
| 223 | return -1; | |
| 224 | } | |
| 225 | } | |
| 226 | ||
| 227 | // Read the EXE-Header | |
| 228 | READTRACK(); | |
| 229 | } | |
| 230 | ||
| 231 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); | |
| 232 | ||
| 233 | psxRegs.pc = SWAP32(tmpHead.pc0); | |
| 234 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
| 235 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); | |
| 236 | if (psxRegs.GPR.n.sp == 0) psxRegs.GPR.n.sp = 0x801fff00; | |
| 237 | ||
| 238 | tmpHead.t_size = SWAP32(tmpHead.t_size); | |
| 239 | tmpHead.t_addr = SWAP32(tmpHead.t_addr); | |
| 240 | ||
| ebe6ff2b | 241 | psxCpu->Clear(tmpHead.t_addr, tmpHead.t_size / 4); |
| 242 | ||
| ef79bbde | 243 | // Read the rest of the main executable |
| ebe6ff2b | 244 | while (tmpHead.t_size & ~2047) { |
| ef79bbde P |
245 | void *ptr = (void *)PSXM(tmpHead.t_addr); |
| 246 | ||
| 247 | incTime(); | |
| 248 | READTRACK(); | |
| 249 | ||
| 250 | if (ptr != NULL) memcpy(ptr, buf+12, 2048); | |
| 251 | ||
| 252 | tmpHead.t_size -= 2048; | |
| 253 | tmpHead.t_addr += 2048; | |
| 254 | } | |
| 255 | ||
| 256 | return 0; | |
| 257 | } | |
| 258 | ||
| 259 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { | |
| 260 | struct iso_directory_record *dir; | |
| 261 | u8 time[4],*buf; | |
| 305c8c93 | 262 | u8 mdir[4096]; |
| 263 | char exename[256]; | |
| ef79bbde | 264 | u32 size, addr; |
| 305c8c93 | 265 | void *mem; |
| ef79bbde P |
266 | |
| 267 | sscanf(filename, "cdrom:\\%256s", exename); | |
| 268 | ||
| 269 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
| 270 | ||
| 271 | READTRACK(); | |
| 272 | ||
| 273 | // skip head and sub, and go to the root directory record | |
| 274 | dir = (struct iso_directory_record *)&buf[12 + 156]; | |
| 275 | ||
| 276 | mmssdd(dir->extent, (char*)time); | |
| 277 | ||
| 278 | READDIR(mdir); | |
| 279 | ||
| 280 | if (GetCdromFile(mdir, time, exename) == -1) return -1; | |
| 281 | ||
| 282 | READTRACK(); | |
| 283 | ||
| 284 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
| 285 | size = head->t_size; | |
| 286 | addr = head->t_addr; | |
| 287 | ||
| ebe6ff2b | 288 | psxCpu->Clear(addr, size / 4); |
| 289 | ||
| 290 | while (size & ~2047) { | |
| ef79bbde P |
291 | incTime(); |
| 292 | READTRACK(); | |
| 293 | ||
| 305c8c93 | 294 | mem = PSXM(addr); |
| 295 | if (mem) | |
| 296 | memcpy(mem, buf + 12, 2048); | |
| ef79bbde P |
297 | |
| 298 | size -= 2048; | |
| 299 | addr += 2048; | |
| 300 | } | |
| 301 | ||
| 302 | return 0; | |
| 303 | } | |
| 304 | ||
| 305 | int CheckCdrom() { | |
| 306 | struct iso_directory_record *dir; | |
| 305c8c93 | 307 | unsigned char time[4]; |
| 308 | char *buf; | |
| ef79bbde P |
309 | unsigned char mdir[4096]; |
| 310 | char exename[256]; | |
| 311 | int i, c; | |
| 312 | ||
| 313 | FreePPFCache(); | |
| 314 | ||
| 315 | time[0] = itob(0); | |
| 316 | time[1] = itob(2); | |
| 317 | time[2] = itob(0x10); | |
| 318 | ||
| 319 | READTRACK(); | |
| 320 | ||
| 321 | CdromLabel[0] = '\0'; | |
| 322 | CdromId[0] = '\0'; | |
| 323 | ||
| 324 | strncpy(CdromLabel, buf + 52, 32); | |
| 325 | ||
| 326 | // skip head and sub, and go to the root directory record | |
| 327 | dir = (struct iso_directory_record *)&buf[12 + 156]; | |
| 328 | ||
| 329 | mmssdd(dir->extent, (char *)time); | |
| 330 | ||
| 331 | READDIR(mdir); | |
| 332 | ||
| 333 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
| 334 | READTRACK(); | |
| 335 | ||
| 305c8c93 | 336 | sscanf(buf + 12, "BOOT = cdrom:\\%256s", exename); |
| ef79bbde | 337 | if (GetCdromFile(mdir, time, exename) == -1) { |
| 305c8c93 | 338 | sscanf(buf + 12, "BOOT = cdrom:%256s", exename); |
| ef79bbde P |
339 | if (GetCdromFile(mdir, time, exename) == -1) { |
| 340 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
| 341 | if (ptr != NULL) { | |
| 342 | ptr += 6; | |
| 343 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
| 344 | strncpy(exename, ptr, 255); | |
| 345 | exename[255] = '\0'; | |
| 346 | ptr = exename; | |
| 347 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
| 348 | *ptr = '\0'; | |
| 349 | if (GetCdromFile(mdir, time, exename) == -1) | |
| 350 | return -1; // main executable not found | |
| 351 | } else | |
| 352 | return -1; | |
| 353 | } | |
| 354 | } | |
| 355 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { | |
| 356 | strcpy(exename, "PSX.EXE;1"); | |
| 357 | strcpy(CdromId, "SLUS99999"); | |
| 358 | } else | |
| 359 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
| 360 | ||
| 361 | if (CdromId[0] == '\0') { | |
| 362 | i = strlen(exename); | |
| 363 | if (i >= 2) { | |
| 364 | if (exename[i - 2] == ';') i-= 2; | |
| 365 | c = 8; i--; | |
| 366 | while (i >= 0 && c >= 0) { | |
| 367 | if (isalnum(exename[i])) CdromId[c--] = exename[i]; | |
| 368 | i--; | |
| 369 | } | |
| 370 | } | |
| 371 | } | |
| 372 | ||
| 0e2e3f49 | 373 | if (CdromId[0] == '\0') |
| 374 | strcpy(CdromId, "SLUS99999"); | |
| 375 | ||
| ef79bbde | 376 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
| a1dbab20 | 377 | if (CdromId[2] == 'e' || CdromId[2] == 'E') |
| ef79bbde P |
378 | Config.PsxType = PSX_TYPE_PAL; // pal |
| 379 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
| 380 | } | |
| 381 | ||
| 382 | if (CdromLabel[0] == ' ') { | |
| 383 | strncpy(CdromLabel, CdromId, 9); | |
| 384 | } | |
| 385 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
| 386 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
| 387 | ||
| 388 | BuildPPFCache(); | |
| 389 | ||
| 390 | return 0; | |
| 391 | } | |
| 392 | ||
| 393 | static int PSXGetFileType(FILE *f) { | |
| 394 | unsigned long current; | |
| 395 | u8 mybuf[2048]; | |
| 396 | EXE_HEADER *exe_hdr; | |
| 397 | FILHDR *coff_hdr; | |
| 398 | ||
| 399 | current = ftell(f); | |
| 400 | fseek(f, 0L, SEEK_SET); | |
| 401 | fread(mybuf, 2048, 1, f); | |
| 402 | fseek(f, current, SEEK_SET); | |
| 403 | ||
| 404 | exe_hdr = (EXE_HEADER *)mybuf; | |
| 405 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
| 406 | return PSX_EXE; | |
| 407 | ||
| 408 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
| 409 | return CPE_EXE; | |
| 410 | ||
| 411 | coff_hdr = (FILHDR *)mybuf; | |
| 412 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
| 413 | return COFF_EXE; | |
| 414 | ||
| 415 | return INVALID_EXE; | |
| 416 | } | |
| 417 | ||
| 96bef96f | 418 | // temporary pandora workaround.. |
| 419 | // FIXME: remove | |
| 420 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
| 421 | { | |
| 422 | void *tmp; | |
| 423 | size_t ret = 0; | |
| 424 | ||
| 425 | tmp = malloc(size * nmemb); | |
| 426 | if (tmp) { | |
| 427 | ret = fread(tmp, size, nmemb, stream); | |
| 428 | memcpy(ptr, tmp, size * nmemb); | |
| 429 | free(tmp); | |
| 430 | } | |
| 431 | return ret; | |
| 432 | } | |
| 433 | ||
| ef79bbde P |
434 | int Load(const char *ExePath) { |
| 435 | FILE *tmpFile; | |
| 436 | EXE_HEADER tmpHead; | |
| 437 | int type; | |
| 438 | int retval = 0; | |
| 439 | u8 opcode; | |
| 440 | u32 section_address, section_size; | |
| ebe6ff2b | 441 | void *mem; |
| ef79bbde P |
442 | |
| 443 | strncpy(CdromId, "SLUS99999", 9); | |
| 444 | strncpy(CdromLabel, "SLUS_999.99", 11); | |
| 445 | ||
| 446 | tmpFile = fopen(ExePath, "rb"); | |
| 447 | if (tmpFile == NULL) { | |
| 448 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
| 449 | retval = -1; | |
| 450 | } else { | |
| 451 | type = PSXGetFileType(tmpFile); | |
| 452 | switch (type) { | |
| 453 | case PSX_EXE: | |
| 454 | fread(&tmpHead,sizeof(EXE_HEADER),1,tmpFile); | |
| ebe6ff2b | 455 | section_address = SWAP32(tmpHead.t_addr); |
| 456 | section_size = SWAP32(tmpHead.t_size); | |
| 457 | mem = PSXM(section_address); | |
| 458 | if (mem != NULL) { | |
| 459 | fseek(tmpFile, 0x800, SEEK_SET); | |
| 96bef96f | 460 | fread_to_ram(mem, section_size, 1, tmpFile); |
| ebe6ff2b | 461 | psxCpu->Clear(section_address, section_size / 4); |
| 462 | } | |
| ef79bbde P |
463 | fclose(tmpFile); |
| 464 | psxRegs.pc = SWAP32(tmpHead.pc0); | |
| 465 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
| 466 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); | |
| 467 | if (psxRegs.GPR.n.sp == 0) | |
| 468 | psxRegs.GPR.n.sp = 0x801fff00; | |
| 469 | retval = 0; | |
| 470 | break; | |
| 471 | case CPE_EXE: | |
| 472 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
| 473 | do { | |
| 474 | fread(&opcode, 1, 1, tmpFile); | |
| 475 | switch (opcode) { | |
| 476 | case 1: /* Section loading */ | |
| 477 | fread(§ion_address, 4, 1, tmpFile); | |
| 478 | fread(§ion_size, 4, 1, tmpFile); | |
| 479 | section_address = SWAPu32(section_address); | |
| 480 | section_size = SWAPu32(section_size); | |
| 481 | #ifdef EMU_LOG | |
| 482 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
| 483 | #endif | |
| ebe6ff2b | 484 | mem = PSXM(section_address); |
| 485 | if (mem != NULL) { | |
| 96bef96f | 486 | fread_to_ram(mem, section_size, 1, tmpFile); |
| ebe6ff2b | 487 | psxCpu->Clear(section_address, section_size / 4); |
| 488 | } | |
| ef79bbde P |
489 | break; |
| 490 | case 3: /* register loading (PC only?) */ | |
| 491 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
| 492 | fread(&psxRegs.pc, 4, 1, tmpFile); | |
| 493 | psxRegs.pc = SWAPu32(psxRegs.pc); | |
| 494 | break; | |
| 495 | case 0: /* End of file */ | |
| 496 | break; | |
| 497 | default: | |
| 498 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
| 499 | retval = -1; | |
| 500 | break; | |
| 501 | } | |
| 502 | } while (opcode != 0 && retval == 0); | |
| 503 | break; | |
| 504 | case COFF_EXE: | |
| 505 | SysPrintf(_("COFF files not supported.\n")); | |
| 506 | retval = -1; | |
| 507 | break; | |
| 508 | case INVALID_EXE: | |
| 509 | SysPrintf(_("This file does not appear to be a valid PSX file.\n")); | |
| 510 | retval = -1; | |
| 511 | break; | |
| 512 | } | |
| 513 | } | |
| 514 | ||
| 515 | if (retval != 0) { | |
| 516 | CdromId[0] = '\0'; | |
| 517 | CdromLabel[0] = '\0'; | |
| 518 | } | |
| 519 | ||
| 520 | return retval; | |
| 521 | } | |
| 522 | ||
| 523 | // STATES | |
| 524 | ||
| 525 | static const char PcsxHeader[32] = "STv4 PCSX v" PACKAGE_VERSION; | |
| 526 | ||
| 527 | // Savestate Versioning! | |
| 528 | // If you make changes to the savestate version, please increment the value below. | |
| df656dde | 529 | static const u32 SaveVersion = 0x8b410006; |
| ef79bbde P |
530 | |
| 531 | int SaveState(const char *file) { | |
| 532 | gzFile f; | |
| 533 | GPUFreeze_t *gpufP; | |
| 534 | SPUFreeze_t *spufP; | |
| 535 | int Size; | |
| 536 | unsigned char *pMem; | |
| 537 | ||
| 538 | f = gzopen(file, "wb"); | |
| 539 | if (f == NULL) return -1; | |
| 540 | ||
| 52082bc1 | 541 | new_dyna_save(); |
| 542 | ||
| ef79bbde P |
543 | gzwrite(f, (void *)PcsxHeader, 32); |
| 544 | gzwrite(f, (void *)&SaveVersion, sizeof(u32)); | |
| 545 | gzwrite(f, (void *)&Config.HLE, sizeof(boolean)); | |
| 546 | ||
| 547 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
| 548 | if (pMem == NULL) return -1; | |
| 549 | GPU_getScreenPic(pMem); | |
| 550 | gzwrite(f, pMem, 128 * 96 * 3); | |
| 551 | free(pMem); | |
| 552 | ||
| 553 | if (Config.HLE) | |
| 554 | psxBiosFreeze(1); | |
| 555 | ||
| 556 | gzwrite(f, psxM, 0x00200000); | |
| 557 | gzwrite(f, psxR, 0x00080000); | |
| 558 | gzwrite(f, psxH, 0x00010000); | |
| 559 | gzwrite(f, (void *)&psxRegs, sizeof(psxRegs)); | |
| 560 | ||
| 561 | // gpu | |
| 562 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
| 563 | gpufP->ulFreezeVersion = 1; | |
| 564 | GPU_freeze(1, gpufP); | |
| 565 | gzwrite(f, gpufP, sizeof(GPUFreeze_t)); | |
| 566 | free(gpufP); | |
| 567 | ||
| 568 | // spu | |
| 569 | spufP = (SPUFreeze_t *) malloc(16); | |
| 570 | SPU_freeze(2, spufP); | |
| 571 | Size = spufP->Size; gzwrite(f, &Size, 4); | |
| 572 | free(spufP); | |
| 573 | spufP = (SPUFreeze_t *) malloc(Size); | |
| 574 | SPU_freeze(1, spufP); | |
| 575 | gzwrite(f, spufP, Size); | |
| 576 | free(spufP); | |
| 577 | ||
| 578 | sioFreeze(f, 1); | |
| 579 | cdrFreeze(f, 1); | |
| 580 | psxHwFreeze(f, 1); | |
| 581 | psxRcntFreeze(f, 1); | |
| 582 | mdecFreeze(f, 1); | |
| 583 | ||
| 584 | gzclose(f); | |
| 585 | ||
| 5b8c000f | 586 | new_dyna_after_save(); |
| 587 | ||
| ef79bbde P |
588 | return 0; |
| 589 | } | |
| 590 | ||
| 591 | int LoadState(const char *file) { | |
| 592 | gzFile f; | |
| 593 | GPUFreeze_t *gpufP; | |
| 594 | SPUFreeze_t *spufP; | |
| 595 | int Size; | |
| 596 | char header[32]; | |
| 597 | u32 version; | |
| 598 | boolean hle; | |
| 599 | ||
| 600 | f = gzopen(file, "rb"); | |
| 601 | if (f == NULL) return -1; | |
| 602 | ||
| 603 | gzread(f, header, sizeof(header)); | |
| 604 | gzread(f, &version, sizeof(u32)); | |
| 605 | gzread(f, &hle, sizeof(boolean)); | |
| 606 | ||
| 33f56da1 | 607 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
| ef79bbde P |
608 | gzclose(f); |
| 609 | return -1; | |
| 610 | } | |
| 33f56da1 | 611 | Config.HLE = hle; |
| 612 | ||
| 613 | if (Config.HLE) | |
| 614 | psxBiosInit(); | |
| ef79bbde P |
615 | |
| 616 | psxCpu->Reset(); | |
| 617 | gzseek(f, 128 * 96 * 3, SEEK_CUR); | |
| 618 | ||
| 619 | gzread(f, psxM, 0x00200000); | |
| 620 | gzread(f, psxR, 0x00080000); | |
| 621 | gzread(f, psxH, 0x00010000); | |
| 622 | gzread(f, (void *)&psxRegs, sizeof(psxRegs)); | |
| 623 | ||
| 624 | if (Config.HLE) | |
| 625 | psxBiosFreeze(0); | |
| 626 | ||
| 627 | // gpu | |
| 628 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
| 629 | gzread(f, gpufP, sizeof(GPUFreeze_t)); | |
| 630 | GPU_freeze(0, gpufP); | |
| 631 | free(gpufP); | |
| ddbaf678 | 632 | if (HW_GPU_STATUS == 0) |
| 633 | HW_GPU_STATUS = GPU_readStatus(); | |
| ef79bbde P |
634 | |
| 635 | // spu | |
| 636 | gzread(f, &Size, 4); | |
| 637 | spufP = (SPUFreeze_t *)malloc(Size); | |
| 638 | gzread(f, spufP, Size); | |
| 639 | SPU_freeze(0, spufP); | |
| 640 | free(spufP); | |
| 641 | ||
| 642 | sioFreeze(f, 0); | |
| 643 | cdrFreeze(f, 0); | |
| 644 | psxHwFreeze(f, 0); | |
| 645 | psxRcntFreeze(f, 0); | |
| 646 | mdecFreeze(f, 0); | |
| 647 | ||
| 648 | gzclose(f); | |
| 52082bc1 | 649 | new_dyna_restore(); |
| ef79bbde P |
650 | |
| 651 | return 0; | |
| 652 | } | |
| 653 | ||
| 654 | int CheckState(const char *file) { | |
| 655 | gzFile f; | |
| 656 | char header[32]; | |
| 657 | u32 version; | |
| 658 | boolean hle; | |
| 659 | ||
| 660 | f = gzopen(file, "rb"); | |
| 661 | if (f == NULL) return -1; | |
| 662 | ||
| 663 | gzread(f, header, sizeof(header)); | |
| 664 | gzread(f, &version, sizeof(u32)); | |
| 665 | gzread(f, &hle, sizeof(boolean)); | |
| 666 | ||
| 667 | gzclose(f); | |
| 668 | ||
| 33f56da1 | 669 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
| ef79bbde P |
670 | return -1; |
| 671 | ||
| 672 | return 0; | |
| 673 | } | |
| 674 | ||
| 675 | // NET Function Helpers | |
| 676 | ||
| 677 | int SendPcsxInfo() { | |
| 678 | if (NET_recvData == NULL || NET_sendData == NULL) | |
| 679 | return 0; | |
| 680 | ||
| 681 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
| 682 | NET_sendData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
| 683 | NET_sendData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
| 684 | NET_sendData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
| 685 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
| 686 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
| 687 | ||
| 688 | return 0; | |
| 689 | } | |
| 690 | ||
| 691 | int RecvPcsxInfo() { | |
| 692 | int tmp; | |
| 693 | ||
| 694 | if (NET_recvData == NULL || NET_sendData == NULL) | |
| 695 | return 0; | |
| 696 | ||
| 697 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
| 698 | NET_recvData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
| 699 | NET_recvData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
| 700 | NET_recvData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
| 701 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
| 702 | ||
| 703 | SysUpdate(); | |
| 704 | ||
| 705 | tmp = Config.Cpu; | |
| 706 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
| 707 | if (tmp != Config.Cpu) { | |
| 708 | psxCpu->Shutdown(); | |
| 709 | #ifdef PSXREC | |
| 710 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; | |
| 711 | else psxCpu = &psxRec; | |
| 712 | #else | |
| 713 | psxCpu = &psxInt; | |
| 714 | #endif | |
| 715 | if (psxCpu->Init() == -1) { | |
| 716 | SysClose(); return -1; | |
| 717 | } | |
| 718 | psxCpu->Reset(); | |
| 719 | } | |
| 720 | ||
| 721 | return 0; | |
| 722 | } | |
| 723 | ||
| 724 | // remove the leading and trailing spaces in a string | |
| 725 | void trim(char *str) { | |
| 726 | int pos = 0; | |
| 727 | char *dest = str; | |
| 728 | ||
| 729 | // skip leading blanks | |
| 730 | while (str[pos] <= ' ' && str[pos] > 0) | |
| 731 | pos++; | |
| 732 | ||
| 733 | while (str[pos]) { | |
| 734 | *(dest++) = str[pos]; | |
| 735 | pos++; | |
| 736 | } | |
| 737 | ||
| 738 | *(dest--) = '\0'; // store the null | |
| 739 | ||
| 740 | // remove trailing blanks | |
| 741 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
| 742 | *(dest--) = '\0'; | |
| 743 | } | |
| 744 | ||
| 745 | // lookup table for crc calculation | |
| 746 | static unsigned short crctab[256] = { | |
| 747 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
| 748 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
| 749 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
| 750 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
| 751 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
| 752 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
| 753 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
| 754 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
| 755 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
| 756 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
| 757 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
| 758 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
| 759 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
| 760 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
| 761 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
| 762 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
| 763 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
| 764 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
| 765 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
| 766 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
| 767 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
| 768 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
| 769 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
| 770 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
| 771 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
| 772 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
| 773 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
| 774 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
| 775 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
| 776 | }; | |
| 777 | ||
| 778 | u16 calcCrc(u8 *d, int len) { | |
| 779 | u16 crc = 0; | |
| 780 | int i; | |
| 781 | ||
| 782 | for (i = 0; i < len; i++) { | |
| 783 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
| 784 | } | |
| 785 | ||
| 786 | return ~crc; | |
| 787 | } |