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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; \ | |
96 | buf = CDR_getBuffer(); \ | |
97 | if (buf == NULL) return -1; else CheckPPFCache(buf, time[0], time[1], time[2]); | |
98 | ||
99 | #define READDIR(_dir) \ | |
100 | READTRACK(); \ | |
101 | memcpy(_dir, buf + 12, 2048); \ | |
102 | \ | |
103 | incTime(); \ | |
104 | READTRACK(); \ | |
105 | memcpy(_dir + 2048, buf + 12, 2048); | |
106 | ||
107 | int GetCdromFile(u8 *mdir, u8 *time, s8 *filename) { | |
108 | struct iso_directory_record *dir; | |
109 | char ddir[4096]; | |
110 | u8 *buf; | |
111 | int i; | |
112 | ||
113 | // only try to scan if a filename is given | |
114 | if (!strlen(filename)) return -1; | |
115 | ||
116 | i = 0; | |
117 | while (i < 4096) { | |
118 | dir = (struct iso_directory_record*) &mdir[i]; | |
119 | if (dir->length[0] == 0) { | |
120 | return -1; | |
121 | } | |
122 | i += dir->length[0]; | |
123 | ||
124 | if (dir->flags[0] & 0x2) { // it's a dir | |
125 | if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) { | |
126 | if (filename[dir->name_len[0]] != '\\') continue; | |
127 | ||
128 | filename += dir->name_len[0] + 1; | |
129 | ||
130 | mmssdd(dir->extent, (char *)time); | |
131 | READDIR(ddir); | |
132 | i = 0; | |
133 | mdir = ddir; | |
134 | } | |
135 | } else { | |
136 | if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) { | |
137 | mmssdd(dir->extent, (char *)time); | |
138 | break; | |
139 | } | |
140 | } | |
141 | } | |
142 | return 0; | |
143 | } | |
144 | ||
145 | int LoadCdrom() { | |
146 | EXE_HEADER tmpHead; | |
147 | struct iso_directory_record *dir; | |
148 | u8 time[4], *buf; | |
149 | u8 mdir[4096]; | |
150 | s8 exename[256]; | |
151 | ||
152 | if (!Config.HLE) { | |
153 | psxRegs.pc = psxRegs.GPR.n.ra; | |
154 | return 0; | |
155 | } | |
156 | ||
157 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
158 | ||
159 | READTRACK(); | |
160 | ||
161 | // skip head and sub, and go to the root directory record | |
162 | dir = (struct iso_directory_record*) &buf[12+156]; | |
163 | ||
164 | mmssdd(dir->extent, (char*)time); | |
165 | ||
166 | READDIR(mdir); | |
167 | ||
168 | // Load SYSTEM.CNF and scan for the main executable | |
169 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { | |
170 | // if SYSTEM.CNF is missing, start an existing PSX.EXE | |
171 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; | |
172 | ||
173 | READTRACK(); | |
174 | } | |
175 | else { | |
176 | // read the SYSTEM.CNF | |
177 | READTRACK(); | |
178 | ||
179 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%256s", exename); | |
180 | if (GetCdromFile(mdir, time, exename) == -1) { | |
181 | sscanf((char *)buf + 12, "BOOT = cdrom:%256s", exename); | |
182 | if (GetCdromFile(mdir, time, exename) == -1) { | |
183 | char *ptr = strstr(buf + 12, "cdrom:"); | |
184 | if (ptr != NULL) { | |
185 | ptr += 6; | |
186 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
187 | strncpy(exename, ptr, 255); | |
188 | exename[255] = '\0'; | |
189 | ptr = exename; | |
190 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
191 | *ptr = '\0'; | |
192 | if (GetCdromFile(mdir, time, exename) == -1) | |
193 | return -1; | |
194 | } else | |
195 | return -1; | |
196 | } | |
197 | } | |
198 | ||
199 | // Read the EXE-Header | |
200 | READTRACK(); | |
201 | } | |
202 | ||
203 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); | |
204 | ||
205 | psxRegs.pc = SWAP32(tmpHead.pc0); | |
206 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
207 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); | |
208 | if (psxRegs.GPR.n.sp == 0) psxRegs.GPR.n.sp = 0x801fff00; | |
209 | ||
210 | tmpHead.t_size = SWAP32(tmpHead.t_size); | |
211 | tmpHead.t_addr = SWAP32(tmpHead.t_addr); | |
212 | ||
ebe6ff2b | 213 | psxCpu->Clear(tmpHead.t_addr, tmpHead.t_size / 4); |
214 | ||
ef79bbde | 215 | // Read the rest of the main executable |
ebe6ff2b | 216 | while (tmpHead.t_size & ~2047) { |
ef79bbde P |
217 | void *ptr = (void *)PSXM(tmpHead.t_addr); |
218 | ||
219 | incTime(); | |
220 | READTRACK(); | |
221 | ||
222 | if (ptr != NULL) memcpy(ptr, buf+12, 2048); | |
223 | ||
224 | tmpHead.t_size -= 2048; | |
225 | tmpHead.t_addr += 2048; | |
226 | } | |
227 | ||
228 | return 0; | |
229 | } | |
230 | ||
231 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { | |
232 | struct iso_directory_record *dir; | |
233 | u8 time[4],*buf; | |
234 | u8 mdir[4096], exename[256]; | |
235 | u32 size, addr; | |
236 | ||
237 | sscanf(filename, "cdrom:\\%256s", exename); | |
238 | ||
239 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
240 | ||
241 | READTRACK(); | |
242 | ||
243 | // skip head and sub, and go to the root directory record | |
244 | dir = (struct iso_directory_record *)&buf[12 + 156]; | |
245 | ||
246 | mmssdd(dir->extent, (char*)time); | |
247 | ||
248 | READDIR(mdir); | |
249 | ||
250 | if (GetCdromFile(mdir, time, exename) == -1) return -1; | |
251 | ||
252 | READTRACK(); | |
253 | ||
254 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
255 | size = head->t_size; | |
256 | addr = head->t_addr; | |
257 | ||
ebe6ff2b | 258 | psxCpu->Clear(addr, size / 4); |
259 | ||
260 | while (size & ~2047) { | |
ef79bbde P |
261 | incTime(); |
262 | READTRACK(); | |
263 | ||
264 | memcpy((void *)PSXM(addr), buf + 12, 2048); | |
265 | ||
266 | size -= 2048; | |
267 | addr += 2048; | |
268 | } | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | int CheckCdrom() { | |
274 | struct iso_directory_record *dir; | |
275 | unsigned char time[4], *buf; | |
276 | unsigned char mdir[4096]; | |
277 | char exename[256]; | |
278 | int i, c; | |
279 | ||
280 | FreePPFCache(); | |
281 | ||
282 | time[0] = itob(0); | |
283 | time[1] = itob(2); | |
284 | time[2] = itob(0x10); | |
285 | ||
286 | READTRACK(); | |
287 | ||
288 | CdromLabel[0] = '\0'; | |
289 | CdromId[0] = '\0'; | |
290 | ||
291 | strncpy(CdromLabel, buf + 52, 32); | |
292 | ||
293 | // skip head and sub, and go to the root directory record | |
294 | dir = (struct iso_directory_record *)&buf[12 + 156]; | |
295 | ||
296 | mmssdd(dir->extent, (char *)time); | |
297 | ||
298 | READDIR(mdir); | |
299 | ||
300 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
301 | READTRACK(); | |
302 | ||
303 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%256s", exename); | |
304 | if (GetCdromFile(mdir, time, exename) == -1) { | |
305 | sscanf((char *)buf + 12, "BOOT = cdrom:%256s", exename); | |
306 | if (GetCdromFile(mdir, time, exename) == -1) { | |
307 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
308 | if (ptr != NULL) { | |
309 | ptr += 6; | |
310 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
311 | strncpy(exename, ptr, 255); | |
312 | exename[255] = '\0'; | |
313 | ptr = exename; | |
314 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
315 | *ptr = '\0'; | |
316 | if (GetCdromFile(mdir, time, exename) == -1) | |
317 | return -1; // main executable not found | |
318 | } else | |
319 | return -1; | |
320 | } | |
321 | } | |
322 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { | |
323 | strcpy(exename, "PSX.EXE;1"); | |
324 | strcpy(CdromId, "SLUS99999"); | |
325 | } else | |
326 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
327 | ||
328 | if (CdromId[0] == '\0') { | |
329 | i = strlen(exename); | |
330 | if (i >= 2) { | |
331 | if (exename[i - 2] == ';') i-= 2; | |
332 | c = 8; i--; | |
333 | while (i >= 0 && c >= 0) { | |
334 | if (isalnum(exename[i])) CdromId[c--] = exename[i]; | |
335 | i--; | |
336 | } | |
337 | } | |
338 | } | |
339 | ||
340 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) | |
a1dbab20 | 341 | if (CdromId[2] == 'e' || CdromId[2] == 'E') |
ef79bbde P |
342 | Config.PsxType = PSX_TYPE_PAL; // pal |
343 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
344 | } | |
345 | ||
346 | if (CdromLabel[0] == ' ') { | |
347 | strncpy(CdromLabel, CdromId, 9); | |
348 | } | |
349 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
350 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
351 | ||
352 | BuildPPFCache(); | |
353 | ||
354 | return 0; | |
355 | } | |
356 | ||
357 | static int PSXGetFileType(FILE *f) { | |
358 | unsigned long current; | |
359 | u8 mybuf[2048]; | |
360 | EXE_HEADER *exe_hdr; | |
361 | FILHDR *coff_hdr; | |
362 | ||
363 | current = ftell(f); | |
364 | fseek(f, 0L, SEEK_SET); | |
365 | fread(mybuf, 2048, 1, f); | |
366 | fseek(f, current, SEEK_SET); | |
367 | ||
368 | exe_hdr = (EXE_HEADER *)mybuf; | |
369 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
370 | return PSX_EXE; | |
371 | ||
372 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
373 | return CPE_EXE; | |
374 | ||
375 | coff_hdr = (FILHDR *)mybuf; | |
376 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
377 | return COFF_EXE; | |
378 | ||
379 | return INVALID_EXE; | |
380 | } | |
381 | ||
382 | int Load(const char *ExePath) { | |
383 | FILE *tmpFile; | |
384 | EXE_HEADER tmpHead; | |
385 | int type; | |
386 | int retval = 0; | |
387 | u8 opcode; | |
388 | u32 section_address, section_size; | |
ebe6ff2b | 389 | void *mem; |
ef79bbde P |
390 | |
391 | strncpy(CdromId, "SLUS99999", 9); | |
392 | strncpy(CdromLabel, "SLUS_999.99", 11); | |
393 | ||
394 | tmpFile = fopen(ExePath, "rb"); | |
395 | if (tmpFile == NULL) { | |
396 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
397 | retval = -1; | |
398 | } else { | |
399 | type = PSXGetFileType(tmpFile); | |
400 | switch (type) { | |
401 | case PSX_EXE: | |
402 | fread(&tmpHead,sizeof(EXE_HEADER),1,tmpFile); | |
ebe6ff2b | 403 | section_address = SWAP32(tmpHead.t_addr); |
404 | section_size = SWAP32(tmpHead.t_size); | |
405 | mem = PSXM(section_address); | |
406 | if (mem != NULL) { | |
407 | fseek(tmpFile, 0x800, SEEK_SET); | |
408 | fread(mem, section_size, 1, tmpFile); | |
409 | psxCpu->Clear(section_address, section_size / 4); | |
410 | } | |
ef79bbde P |
411 | fclose(tmpFile); |
412 | psxRegs.pc = SWAP32(tmpHead.pc0); | |
413 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
414 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); | |
415 | if (psxRegs.GPR.n.sp == 0) | |
416 | psxRegs.GPR.n.sp = 0x801fff00; | |
417 | retval = 0; | |
418 | break; | |
419 | case CPE_EXE: | |
420 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
421 | do { | |
422 | fread(&opcode, 1, 1, tmpFile); | |
423 | switch (opcode) { | |
424 | case 1: /* Section loading */ | |
425 | fread(§ion_address, 4, 1, tmpFile); | |
426 | fread(§ion_size, 4, 1, tmpFile); | |
427 | section_address = SWAPu32(section_address); | |
428 | section_size = SWAPu32(section_size); | |
429 | #ifdef EMU_LOG | |
430 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
431 | #endif | |
ebe6ff2b | 432 | mem = PSXM(section_address); |
433 | if (mem != NULL) { | |
434 | fread(mem, section_size, 1, tmpFile); | |
435 | psxCpu->Clear(section_address, section_size / 4); | |
436 | } | |
ef79bbde P |
437 | break; |
438 | case 3: /* register loading (PC only?) */ | |
439 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
440 | fread(&psxRegs.pc, 4, 1, tmpFile); | |
441 | psxRegs.pc = SWAPu32(psxRegs.pc); | |
442 | break; | |
443 | case 0: /* End of file */ | |
444 | break; | |
445 | default: | |
446 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
447 | retval = -1; | |
448 | break; | |
449 | } | |
450 | } while (opcode != 0 && retval == 0); | |
451 | break; | |
452 | case COFF_EXE: | |
453 | SysPrintf(_("COFF files not supported.\n")); | |
454 | retval = -1; | |
455 | break; | |
456 | case INVALID_EXE: | |
457 | SysPrintf(_("This file does not appear to be a valid PSX file.\n")); | |
458 | retval = -1; | |
459 | break; | |
460 | } | |
461 | } | |
462 | ||
463 | if (retval != 0) { | |
464 | CdromId[0] = '\0'; | |
465 | CdromLabel[0] = '\0'; | |
466 | } | |
467 | ||
468 | return retval; | |
469 | } | |
470 | ||
471 | // STATES | |
472 | ||
473 | static const char PcsxHeader[32] = "STv4 PCSX v" PACKAGE_VERSION; | |
474 | ||
475 | // Savestate Versioning! | |
476 | // If you make changes to the savestate version, please increment the value below. | |
df656dde | 477 | static const u32 SaveVersion = 0x8b410006; |
ef79bbde P |
478 | |
479 | int SaveState(const char *file) { | |
480 | gzFile f; | |
481 | GPUFreeze_t *gpufP; | |
482 | SPUFreeze_t *spufP; | |
483 | int Size; | |
484 | unsigned char *pMem; | |
485 | ||
486 | f = gzopen(file, "wb"); | |
487 | if (f == NULL) return -1; | |
488 | ||
52082bc1 | 489 | new_dyna_save(); |
490 | ||
ef79bbde P |
491 | gzwrite(f, (void *)PcsxHeader, 32); |
492 | gzwrite(f, (void *)&SaveVersion, sizeof(u32)); | |
493 | gzwrite(f, (void *)&Config.HLE, sizeof(boolean)); | |
494 | ||
495 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
496 | if (pMem == NULL) return -1; | |
497 | GPU_getScreenPic(pMem); | |
498 | gzwrite(f, pMem, 128 * 96 * 3); | |
499 | free(pMem); | |
500 | ||
501 | if (Config.HLE) | |
502 | psxBiosFreeze(1); | |
503 | ||
504 | gzwrite(f, psxM, 0x00200000); | |
505 | gzwrite(f, psxR, 0x00080000); | |
506 | gzwrite(f, psxH, 0x00010000); | |
507 | gzwrite(f, (void *)&psxRegs, sizeof(psxRegs)); | |
508 | ||
509 | // gpu | |
510 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
511 | gpufP->ulFreezeVersion = 1; | |
512 | GPU_freeze(1, gpufP); | |
513 | gzwrite(f, gpufP, sizeof(GPUFreeze_t)); | |
514 | free(gpufP); | |
515 | ||
516 | // spu | |
517 | spufP = (SPUFreeze_t *) malloc(16); | |
518 | SPU_freeze(2, spufP); | |
519 | Size = spufP->Size; gzwrite(f, &Size, 4); | |
520 | free(spufP); | |
521 | spufP = (SPUFreeze_t *) malloc(Size); | |
522 | SPU_freeze(1, spufP); | |
523 | gzwrite(f, spufP, Size); | |
524 | free(spufP); | |
525 | ||
526 | sioFreeze(f, 1); | |
527 | cdrFreeze(f, 1); | |
528 | psxHwFreeze(f, 1); | |
529 | psxRcntFreeze(f, 1); | |
530 | mdecFreeze(f, 1); | |
531 | ||
532 | gzclose(f); | |
533 | ||
5b8c000f | 534 | new_dyna_after_save(); |
535 | ||
ef79bbde P |
536 | return 0; |
537 | } | |
538 | ||
539 | int LoadState(const char *file) { | |
540 | gzFile f; | |
541 | GPUFreeze_t *gpufP; | |
542 | SPUFreeze_t *spufP; | |
543 | int Size; | |
544 | char header[32]; | |
545 | u32 version; | |
546 | boolean hle; | |
547 | ||
548 | f = gzopen(file, "rb"); | |
549 | if (f == NULL) return -1; | |
550 | ||
551 | gzread(f, header, sizeof(header)); | |
552 | gzread(f, &version, sizeof(u32)); | |
553 | gzread(f, &hle, sizeof(boolean)); | |
554 | ||
33f56da1 | 555 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
ef79bbde P |
556 | gzclose(f); |
557 | return -1; | |
558 | } | |
33f56da1 | 559 | Config.HLE = hle; |
560 | ||
561 | if (Config.HLE) | |
562 | psxBiosInit(); | |
ef79bbde P |
563 | |
564 | psxCpu->Reset(); | |
565 | gzseek(f, 128 * 96 * 3, SEEK_CUR); | |
566 | ||
567 | gzread(f, psxM, 0x00200000); | |
568 | gzread(f, psxR, 0x00080000); | |
569 | gzread(f, psxH, 0x00010000); | |
570 | gzread(f, (void *)&psxRegs, sizeof(psxRegs)); | |
571 | ||
572 | if (Config.HLE) | |
573 | psxBiosFreeze(0); | |
574 | ||
575 | // gpu | |
576 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
577 | gzread(f, gpufP, sizeof(GPUFreeze_t)); | |
578 | GPU_freeze(0, gpufP); | |
579 | free(gpufP); | |
ddbaf678 | 580 | if (HW_GPU_STATUS == 0) |
581 | HW_GPU_STATUS = GPU_readStatus(); | |
ef79bbde P |
582 | |
583 | // spu | |
584 | gzread(f, &Size, 4); | |
585 | spufP = (SPUFreeze_t *)malloc(Size); | |
586 | gzread(f, spufP, Size); | |
587 | SPU_freeze(0, spufP); | |
588 | free(spufP); | |
589 | ||
590 | sioFreeze(f, 0); | |
591 | cdrFreeze(f, 0); | |
592 | psxHwFreeze(f, 0); | |
593 | psxRcntFreeze(f, 0); | |
594 | mdecFreeze(f, 0); | |
595 | ||
596 | gzclose(f); | |
52082bc1 | 597 | new_dyna_restore(); |
ef79bbde P |
598 | |
599 | return 0; | |
600 | } | |
601 | ||
602 | int CheckState(const char *file) { | |
603 | gzFile f; | |
604 | char header[32]; | |
605 | u32 version; | |
606 | boolean hle; | |
607 | ||
608 | f = gzopen(file, "rb"); | |
609 | if (f == NULL) return -1; | |
610 | ||
611 | gzread(f, header, sizeof(header)); | |
612 | gzread(f, &version, sizeof(u32)); | |
613 | gzread(f, &hle, sizeof(boolean)); | |
614 | ||
615 | gzclose(f); | |
616 | ||
33f56da1 | 617 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
ef79bbde P |
618 | return -1; |
619 | ||
620 | return 0; | |
621 | } | |
622 | ||
623 | // NET Function Helpers | |
624 | ||
625 | int SendPcsxInfo() { | |
626 | if (NET_recvData == NULL || NET_sendData == NULL) | |
627 | return 0; | |
628 | ||
629 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
630 | NET_sendData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
631 | NET_sendData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
632 | NET_sendData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
633 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
634 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
635 | ||
636 | return 0; | |
637 | } | |
638 | ||
639 | int RecvPcsxInfo() { | |
640 | int tmp; | |
641 | ||
642 | if (NET_recvData == NULL || NET_sendData == NULL) | |
643 | return 0; | |
644 | ||
645 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
646 | NET_recvData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
647 | NET_recvData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
648 | NET_recvData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
649 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
650 | ||
651 | SysUpdate(); | |
652 | ||
653 | tmp = Config.Cpu; | |
654 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
655 | if (tmp != Config.Cpu) { | |
656 | psxCpu->Shutdown(); | |
657 | #ifdef PSXREC | |
658 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; | |
659 | else psxCpu = &psxRec; | |
660 | #else | |
661 | psxCpu = &psxInt; | |
662 | #endif | |
663 | if (psxCpu->Init() == -1) { | |
664 | SysClose(); return -1; | |
665 | } | |
666 | psxCpu->Reset(); | |
667 | } | |
668 | ||
669 | return 0; | |
670 | } | |
671 | ||
672 | // remove the leading and trailing spaces in a string | |
673 | void trim(char *str) { | |
674 | int pos = 0; | |
675 | char *dest = str; | |
676 | ||
677 | // skip leading blanks | |
678 | while (str[pos] <= ' ' && str[pos] > 0) | |
679 | pos++; | |
680 | ||
681 | while (str[pos]) { | |
682 | *(dest++) = str[pos]; | |
683 | pos++; | |
684 | } | |
685 | ||
686 | *(dest--) = '\0'; // store the null | |
687 | ||
688 | // remove trailing blanks | |
689 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
690 | *(dest--) = '\0'; | |
691 | } | |
692 | ||
693 | // lookup table for crc calculation | |
694 | static unsigned short crctab[256] = { | |
695 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
696 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
697 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
698 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
699 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
700 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
701 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
702 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
703 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
704 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
705 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
706 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
707 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
708 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
709 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
710 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
711 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
712 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
713 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
714 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
715 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
716 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
717 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
718 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
719 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
720 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
721 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
722 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
723 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
724 | }; | |
725 | ||
726 | u16 calcCrc(u8 *d, int len) { | |
727 | u16 crc = 0; | |
728 | int i; | |
729 | ||
730 | for (i = 0; i < len; i++) { | |
731 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
732 | } | |
733 | ||
734 | return ~crc; | |
735 | } |