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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 | ||
630b122b | 24 | #include <stddef.h> |
f5f5f5dd | 25 | #include <assert.h> |
ef79bbde P |
26 | #include "misc.h" |
27 | #include "cdrom.h" | |
28 | #include "mdec.h" | |
ddbaf678 | 29 | #include "gpu.h" |
ef79bbde | 30 | #include "ppf.h" |
630b122b | 31 | #include "database.h" |
496d88d4 | 32 | #include <zlib.h> |
ef79bbde P |
33 | |
34 | char CdromId[10] = ""; | |
35 | char CdromLabel[33] = ""; | |
36 | ||
37 | // PSX Executable types | |
38 | #define PSX_EXE 1 | |
39 | #define CPE_EXE 2 | |
40 | #define COFF_EXE 3 | |
41 | #define INVALID_EXE 4 | |
42 | ||
43 | #define ISODCL(from, to) (to - from + 1) | |
44 | ||
45 | struct iso_directory_record { | |
46 | char length [ISODCL (1, 1)]; /* 711 */ | |
47 | char ext_attr_length [ISODCL (2, 2)]; /* 711 */ | |
48 | char extent [ISODCL (3, 10)]; /* 733 */ | |
49 | char size [ISODCL (11, 18)]; /* 733 */ | |
50 | char date [ISODCL (19, 25)]; /* 7 by 711 */ | |
51 | char flags [ISODCL (26, 26)]; | |
52 | char file_unit_size [ISODCL (27, 27)]; /* 711 */ | |
53 | char interleave [ISODCL (28, 28)]; /* 711 */ | |
54 | char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ | |
55 | unsigned char name_len [ISODCL (33, 33)]; /* 711 */ | |
56 | char name [1]; | |
57 | }; | |
58 | ||
6d8f88c4 | 59 | static void mmssdd( char *b, char *p ) |
ef79bbde P |
60 | { |
61 | int m, s, d; | |
6d8f88c4 | 62 | unsigned char *ub = (void *)b; |
63 | int block = (ub[3] << 24) | (ub[2] << 16) | (ub[1] << 8) | ub[0]; | |
ef79bbde P |
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; | |
3e42b115 | 73 | d = ((d / 10) << 4) | d % 10; |
ef79bbde P |
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() \ | |
1290ebe4 | 94 | if (!CDR_readTrack(time)) return -1; \ |
305c8c93 | 95 | buf = (void *)CDR_getBuffer(); \ |
96 | if (buf == NULL) return -1; \ | |
97 | else CheckPPFCache((u8 *)buf, time[0], time[1], time[2]); | |
ef79bbde P |
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 | ||
305c8c93 | 107 | int GetCdromFile(u8 *mdir, u8 *time, char *filename) { |
ef79bbde | 108 | struct iso_directory_record *dir; |
5be6eaeb | 109 | int retval = -1; |
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 | } | |
1c2c2bfb | 123 | i += (u8)dir->length[0]; |
ef79bbde P |
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); | |
5be6eaeb | 139 | retval = 0; |
ef79bbde P |
140 | break; |
141 | } | |
142 | } | |
143 | } | |
5be6eaeb | 144 | return retval; |
ef79bbde P |
145 | } |
146 | ||
f3a78e7e | 147 | static const unsigned int gpu_ctl_def[] = { |
148 | 0x00000000, 0x01000000, 0x03000000, 0x04000000, | |
149 | 0x05000800, 0x06c60260, 0x0703fc10, 0x08000027, | |
150 | }; | |
151 | ||
152 | static const unsigned int gpu_data_def[] = { | |
153 | 0xe100360b, 0xe2000000, 0xe3000800, 0xe4077e7f, | |
154 | 0xe5001000, 0xe6000000, | |
155 | 0x02000000, 0x00000000, 0x01ff03ff, | |
156 | }; | |
157 | ||
f5f5f5dd | 158 | void BiosLikeGPUSetup() |
f3a78e7e | 159 | { |
160 | int i; | |
161 | ||
162 | for (i = 0; i < sizeof(gpu_ctl_def) / sizeof(gpu_ctl_def[0]); i++) | |
163 | GPU_writeStatus(gpu_ctl_def[i]); | |
164 | ||
165 | for (i = 0; i < sizeof(gpu_data_def) / sizeof(gpu_data_def[0]); i++) | |
166 | GPU_writeData(gpu_data_def[i]); | |
167 | } | |
168 | ||
6c62131f | 169 | static void SetBootRegs(u32 pc, u32 gp, u32 sp) |
170 | { | |
171 | //printf("%s %08x %08x %08x\n", __func__, pc, gp, sp); | |
172 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); | |
173 | ||
174 | psxRegs.pc = pc; | |
175 | psxRegs.GPR.n.gp = gp; | |
176 | psxRegs.GPR.n.sp = sp ? sp : 0x801fff00; | |
177 | ||
178 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); | |
179 | } | |
180 | ||
f5f5f5dd | 181 | void BiosBootBypass() { |
182 | assert(psxRegs.pc == 0x80030000); | |
183 | ||
184 | // skip BIOS logos and region check | |
185 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); | |
186 | psxRegs.pc = psxRegs.GPR.n.ra; | |
187 | } | |
188 | ||
ef79bbde P |
189 | int LoadCdrom() { |
190 | EXE_HEADER tmpHead; | |
191 | struct iso_directory_record *dir; | |
192 | u8 time[4], *buf; | |
193 | u8 mdir[4096]; | |
305c8c93 | 194 | char exename[256]; |
ef79bbde | 195 | |
f5f5f5dd | 196 | if (!Config.HLE) { |
197 | if (!BiosBooted) return 0; // custom BIOS | |
198 | if (psxRegs.pc != 0x80030000) return 0; // BiosBootBypass'ed | |
199 | if (Config.SlowBoot) return 0; | |
ef79bbde P |
200 | } |
201 | ||
202 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
203 | ||
204 | READTRACK(); | |
205 | ||
206 | // skip head and sub, and go to the root directory record | |
3e42b115 | 207 | dir = (struct iso_directory_record*) &buf[12+156]; |
ef79bbde P |
208 | |
209 | mmssdd(dir->extent, (char*)time); | |
210 | ||
211 | READDIR(mdir); | |
212 | ||
213 | // Load SYSTEM.CNF and scan for the main executable | |
214 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { | |
215 | // if SYSTEM.CNF is missing, start an existing PSX.EXE | |
216 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; | |
f5f5f5dd | 217 | strcpy(exename, "PSX.EXE;1"); |
ef79bbde P |
218 | |
219 | READTRACK(); | |
220 | } | |
221 | else { | |
222 | // read the SYSTEM.CNF | |
223 | READTRACK(); | |
224 | ||
9a9bcd78 | 225 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 226 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 227 | sscanf((char *)buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde | 228 | if (GetCdromFile(mdir, time, exename) == -1) { |
305c8c93 | 229 | char *ptr = strstr((char *)buf + 12, "cdrom:"); |
ef79bbde P |
230 | if (ptr != NULL) { |
231 | ptr += 6; | |
232 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
233 | strncpy(exename, ptr, 255); | |
234 | exename[255] = '\0'; | |
235 | ptr = exename; | |
236 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
237 | *ptr = '\0'; | |
238 | if (GetCdromFile(mdir, time, exename) == -1) | |
239 | return -1; | |
240 | } else | |
241 | return -1; | |
242 | } | |
243 | } | |
244 | ||
245 | // Read the EXE-Header | |
246 | READTRACK(); | |
247 | } | |
248 | ||
249 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); | |
250 | ||
f5f5f5dd | 251 | SysPrintf("manual booting '%s'\n", exename); |
6c62131f | 252 | SetBootRegs(SWAP32(tmpHead.pc0), SWAP32(tmpHead.gp0), SWAP32(tmpHead.s_addr)); |
ef79bbde P |
253 | |
254 | tmpHead.t_size = SWAP32(tmpHead.t_size); | |
255 | tmpHead.t_addr = SWAP32(tmpHead.t_addr); | |
256 | ||
ebe6ff2b | 257 | psxCpu->Clear(tmpHead.t_addr, tmpHead.t_size / 4); |
952943a7 | 258 | psxCpu->Reset(); |
ebe6ff2b | 259 | |
ef79bbde | 260 | // Read the rest of the main executable |
ebe6ff2b | 261 | while (tmpHead.t_size & ~2047) { |
ef79bbde P |
262 | void *ptr = (void *)PSXM(tmpHead.t_addr); |
263 | ||
264 | incTime(); | |
265 | READTRACK(); | |
266 | ||
b012a437 | 267 | if (ptr != INVALID_PTR) memcpy(ptr, buf+12, 2048); |
ef79bbde P |
268 | |
269 | tmpHead.t_size -= 2048; | |
270 | tmpHead.t_addr += 2048; | |
271 | } | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
276 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { | |
277 | struct iso_directory_record *dir; | |
278 | u8 time[4],*buf; | |
305c8c93 | 279 | u8 mdir[4096]; |
280 | char exename[256]; | |
ef79bbde | 281 | u32 size, addr; |
305c8c93 | 282 | void *mem; |
ef79bbde | 283 | |
9a9bcd78 | 284 | sscanf(filename, "cdrom:\\%255s", exename); |
ef79bbde P |
285 | |
286 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
287 | ||
288 | READTRACK(); | |
289 | ||
290 | // skip head and sub, and go to the root directory record | |
3e42b115 | 291 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
292 | |
293 | mmssdd(dir->extent, (char*)time); | |
294 | ||
295 | READDIR(mdir); | |
296 | ||
297 | if (GetCdromFile(mdir, time, exename) == -1) return -1; | |
298 | ||
299 | READTRACK(); | |
300 | ||
301 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
302 | size = head->t_size; | |
303 | addr = head->t_addr; | |
304 | ||
ebe6ff2b | 305 | psxCpu->Clear(addr, size / 4); |
952943a7 | 306 | psxCpu->Reset(); |
ebe6ff2b | 307 | |
308 | while (size & ~2047) { | |
ef79bbde P |
309 | incTime(); |
310 | READTRACK(); | |
311 | ||
305c8c93 | 312 | mem = PSXM(addr); |
b012a437 | 313 | if (mem != INVALID_PTR) |
305c8c93 | 314 | memcpy(mem, buf + 12, 2048); |
ef79bbde P |
315 | |
316 | size -= 2048; | |
317 | addr += 2048; | |
318 | } | |
319 | ||
320 | return 0; | |
321 | } | |
322 | ||
323 | int CheckCdrom() { | |
324 | struct iso_directory_record *dir; | |
305c8c93 | 325 | unsigned char time[4]; |
326 | char *buf; | |
ef79bbde P |
327 | unsigned char mdir[4096]; |
328 | char exename[256]; | |
e06ee7f4 | 329 | int i, len, c; |
ef79bbde P |
330 | |
331 | FreePPFCache(); | |
332 | ||
333 | time[0] = itob(0); | |
334 | time[1] = itob(2); | |
335 | time[2] = itob(0x10); | |
336 | ||
337 | READTRACK(); | |
338 | ||
e06ee7f4 | 339 | memset(CdromLabel, 0, sizeof(CdromLabel)); |
340 | memset(CdromId, 0, sizeof(CdromId)); | |
341 | memset(exename, 0, sizeof(exename)); | |
ef79bbde P |
342 | |
343 | strncpy(CdromLabel, buf + 52, 32); | |
344 | ||
345 | // skip head and sub, and go to the root directory record | |
3e42b115 | 346 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
347 | |
348 | mmssdd(dir->extent, (char *)time); | |
349 | ||
350 | READDIR(mdir); | |
351 | ||
352 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
353 | READTRACK(); | |
354 | ||
9a9bcd78 | 355 | sscanf(buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 356 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 357 | sscanf(buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde P |
358 | if (GetCdromFile(mdir, time, exename) == -1) { |
359 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
360 | if (ptr != NULL) { | |
361 | ptr += 6; | |
362 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
363 | strncpy(exename, ptr, 255); | |
364 | exename[255] = '\0'; | |
365 | ptr = exename; | |
366 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
367 | *ptr = '\0'; | |
368 | if (GetCdromFile(mdir, time, exename) == -1) | |
369 | return -1; // main executable not found | |
370 | } else | |
371 | return -1; | |
372 | } | |
373 | } | |
1893f408 | 374 | /* Workaround for Wild Arms EU/US which has non-standard string causing incorrect region detection */ |
375 | if (exename[0] == 'E' && exename[1] == 'X' && exename[2] == 'E' && exename[3] == '\\') { | |
376 | size_t offset = 4; | |
377 | size_t i, len = strlen(exename) - offset; | |
378 | for (i = 0; i < len; i++) | |
379 | exename[i] = exename[i + offset]; | |
380 | exename[i] = '\0'; | |
381 | } | |
ef79bbde P |
382 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { |
383 | strcpy(exename, "PSX.EXE;1"); | |
384 | strcpy(CdromId, "SLUS99999"); | |
385 | } else | |
386 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
387 | ||
388 | if (CdromId[0] == '\0') { | |
e06ee7f4 | 389 | len = strlen(exename); |
390 | c = 0; | |
391 | for (i = 0; i < len; ++i) { | |
392 | if (exename[i] == ';' || c >= sizeof(CdromId) - 1) | |
393 | break; | |
394 | if (isalnum(exename[i])) | |
395 | CdromId[c++] = exename[i]; | |
ef79bbde P |
396 | } |
397 | } | |
398 | ||
0e2e3f49 | 399 | if (CdromId[0] == '\0') |
400 | strcpy(CdromId, "SLUS99999"); | |
401 | ||
ef79bbde | 402 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
630b122b | 403 | if ( |
404 | /* Make sure Wild Arms SCUS-94608 is not detected as a PAL game. */ | |
405 | ((CdromId[0] == 's' || CdromId[0] == 'S') && (CdromId[2] == 'e' || CdromId[2] == 'E')) || | |
406 | !strncmp(CdromId, "DTLS3035", 8) || | |
407 | !strncmp(CdromId, "PBPX95001", 9) || // according to redump.org, these PAL | |
408 | !strncmp(CdromId, "PBPX95007", 9) || // discs have a non-standard ID; | |
409 | !strncmp(CdromId, "PBPX95008", 9)) // add more serials if they are discovered. | |
ef79bbde P |
410 | Config.PsxType = PSX_TYPE_PAL; // pal |
411 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
412 | } | |
413 | ||
414 | if (CdromLabel[0] == ' ') { | |
630b122b | 415 | strncpy(CdromLabel, CdromId, 9); |
ef79bbde P |
416 | } |
417 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
418 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
e06ee7f4 | 419 | SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename); |
630b122b | 420 | |
421 | Apply_Hacks_Cdrom(); | |
ef79bbde P |
422 | |
423 | BuildPPFCache(); | |
424 | ||
425 | return 0; | |
426 | } | |
427 | ||
428 | static int PSXGetFileType(FILE *f) { | |
429 | unsigned long current; | |
430 | u8 mybuf[2048]; | |
431 | EXE_HEADER *exe_hdr; | |
432 | FILHDR *coff_hdr; | |
433 | ||
434 | current = ftell(f); | |
435 | fseek(f, 0L, SEEK_SET); | |
5b568098 | 436 | if (fread(&mybuf, 1, sizeof(mybuf), f) != sizeof(mybuf)) |
9361a5aa EC |
437 | goto io_fail; |
438 | ||
ef79bbde P |
439 | fseek(f, current, SEEK_SET); |
440 | ||
441 | exe_hdr = (EXE_HEADER *)mybuf; | |
442 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
443 | return PSX_EXE; | |
444 | ||
445 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
446 | return CPE_EXE; | |
447 | ||
448 | coff_hdr = (FILHDR *)mybuf; | |
449 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
450 | return COFF_EXE; | |
451 | ||
452 | return INVALID_EXE; | |
9361a5aa EC |
453 | |
454 | io_fail: | |
455 | #ifndef NDEBUG | |
456 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
457 | #endif | |
458 | return INVALID_EXE; | |
ef79bbde P |
459 | } |
460 | ||
96bef96f | 461 | // temporary pandora workaround.. |
462 | // FIXME: remove | |
463 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
464 | { | |
465 | void *tmp; | |
466 | size_t ret = 0; | |
3e42b115 | 467 | |
96bef96f | 468 | tmp = malloc(size * nmemb); |
469 | if (tmp) { | |
470 | ret = fread(tmp, size, nmemb, stream); | |
471 | memcpy(ptr, tmp, size * nmemb); | |
472 | free(tmp); | |
473 | } | |
474 | return ret; | |
475 | } | |
476 | ||
ef79bbde P |
477 | int Load(const char *ExePath) { |
478 | FILE *tmpFile; | |
479 | EXE_HEADER tmpHead; | |
480 | int type; | |
481 | int retval = 0; | |
482 | u8 opcode; | |
483 | u32 section_address, section_size; | |
ebe6ff2b | 484 | void *mem; |
ef79bbde | 485 | |
3e42b115 | 486 | strcpy(CdromId, "SLUS99999"); |
487 | strcpy(CdromLabel, "SLUS_999.99"); | |
ef79bbde P |
488 | |
489 | tmpFile = fopen(ExePath, "rb"); | |
490 | if (tmpFile == NULL) { | |
491 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
492 | retval = -1; | |
493 | } else { | |
494 | type = PSXGetFileType(tmpFile); | |
495 | switch (type) { | |
496 | case PSX_EXE: | |
5b568098 | 497 | if (fread(&tmpHead, 1, sizeof(EXE_HEADER), tmpFile) != sizeof(EXE_HEADER)) |
9361a5aa | 498 | goto fail_io; |
ebe6ff2b | 499 | section_address = SWAP32(tmpHead.t_addr); |
500 | section_size = SWAP32(tmpHead.t_size); | |
501 | mem = PSXM(section_address); | |
b012a437 | 502 | if (mem != INVALID_PTR) { |
3e42b115 | 503 | fseek(tmpFile, 0x800, SEEK_SET); |
96bef96f | 504 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 505 | psxCpu->Clear(section_address, section_size / 4); |
506 | } | |
6c62131f | 507 | SetBootRegs(SWAP32(tmpHead.pc0), SWAP32(tmpHead.gp0), |
508 | SWAP32(tmpHead.s_addr)); | |
ef79bbde P |
509 | retval = 0; |
510 | break; | |
511 | case CPE_EXE: | |
512 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
513 | do { | |
5b568098 | 514 | if (fread(&opcode, 1, sizeof(opcode), tmpFile) != sizeof(opcode)) |
9361a5aa | 515 | goto fail_io; |
ef79bbde P |
516 | switch (opcode) { |
517 | case 1: /* Section loading */ | |
5b568098 | 518 | if (fread(§ion_address, 1, sizeof(section_address), tmpFile) != sizeof(section_address)) |
9361a5aa | 519 | goto fail_io; |
5b568098 | 520 | if (fread(§ion_size, 1, sizeof(section_size), tmpFile) != sizeof(section_size)) |
9361a5aa | 521 | goto fail_io; |
ef79bbde P |
522 | section_address = SWAPu32(section_address); |
523 | section_size = SWAPu32(section_size); | |
524 | #ifdef EMU_LOG | |
525 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
526 | #endif | |
ebe6ff2b | 527 | mem = PSXM(section_address); |
b012a437 | 528 | if (mem != INVALID_PTR) { |
96bef96f | 529 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 530 | psxCpu->Clear(section_address, section_size / 4); |
531 | } | |
ef79bbde P |
532 | break; |
533 | case 3: /* register loading (PC only?) */ | |
534 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
5b568098 | 535 | if (fread(&psxRegs.pc, 1, sizeof(psxRegs.pc), tmpFile) != sizeof(psxRegs.pc)) |
9361a5aa | 536 | goto fail_io; |
ef79bbde P |
537 | psxRegs.pc = SWAPu32(psxRegs.pc); |
538 | break; | |
539 | case 0: /* End of file */ | |
540 | break; | |
541 | default: | |
542 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
543 | retval = -1; | |
544 | break; | |
545 | } | |
546 | } while (opcode != 0 && retval == 0); | |
547 | break; | |
548 | case COFF_EXE: | |
549 | SysPrintf(_("COFF files not supported.\n")); | |
550 | retval = -1; | |
551 | break; | |
552 | case INVALID_EXE: | |
8f00f96c | 553 | SysPrintf(_("This file does not appear to be a valid PSX EXE file.\n")); |
554 | SysPrintf(_("(did you forget -cdfile ?)\n")); | |
ef79bbde P |
555 | retval = -1; |
556 | break; | |
557 | } | |
558 | } | |
559 | ||
560 | if (retval != 0) { | |
561 | CdromId[0] = '\0'; | |
562 | CdromLabel[0] = '\0'; | |
563 | } | |
564 | ||
5b568098 | 565 | if (tmpFile) |
566 | fclose(tmpFile); | |
ef79bbde | 567 | return retval; |
9361a5aa EC |
568 | |
569 | fail_io: | |
570 | #ifndef NDEBUG | |
571 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
572 | #endif | |
573 | fclose(tmpFile); | |
574 | return -1; | |
ef79bbde P |
575 | } |
576 | ||
577 | // STATES | |
578 | ||
496d88d4 | 579 | static void *zlib_open(const char *name, const char *mode) |
580 | { | |
581 | return gzopen(name, mode); | |
582 | } | |
583 | ||
584 | static int zlib_read(void *file, void *buf, u32 len) | |
585 | { | |
586 | return gzread(file, buf, len); | |
587 | } | |
588 | ||
589 | static int zlib_write(void *file, const void *buf, u32 len) | |
590 | { | |
591 | return gzwrite(file, buf, len); | |
592 | } | |
593 | ||
594 | static long zlib_seek(void *file, long offs, int whence) | |
595 | { | |
596 | return gzseek(file, offs, whence); | |
597 | } | |
598 | ||
599 | static void zlib_close(void *file) | |
600 | { | |
601 | gzclose(file); | |
602 | } | |
603 | ||
604 | struct PcsxSaveFuncs SaveFuncs = { | |
605 | zlib_open, zlib_read, zlib_write, zlib_seek, zlib_close | |
606 | }; | |
607 | ||
202b29d4 | 608 | static const char PcsxHeader[32] = "STv4 PCSX v" PCSX_VERSION; |
ef79bbde P |
609 | |
610 | // Savestate Versioning! | |
611 | // If you make changes to the savestate version, please increment the value below. | |
df656dde | 612 | static const u32 SaveVersion = 0x8b410006; |
ef79bbde P |
613 | |
614 | int SaveState(const char *file) { | |
496d88d4 | 615 | void *f; |
ef79bbde | 616 | GPUFreeze_t *gpufP; |
6c62131f | 617 | SPUFreezeHdr_t *spufH; |
ef79bbde P |
618 | SPUFreeze_t *spufP; |
619 | int Size; | |
620 | unsigned char *pMem; | |
621 | ||
496d88d4 | 622 | f = SaveFuncs.open(file, "wb"); |
ef79bbde P |
623 | if (f == NULL) return -1; |
624 | ||
20196899 | 625 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); |
6962f770 | 626 | |
496d88d4 | 627 | SaveFuncs.write(f, (void *)PcsxHeader, 32); |
628 | SaveFuncs.write(f, (void *)&SaveVersion, sizeof(u32)); | |
629 | SaveFuncs.write(f, (void *)&Config.HLE, sizeof(boolean)); | |
ef79bbde P |
630 | |
631 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
632 | if (pMem == NULL) return -1; | |
633 | GPU_getScreenPic(pMem); | |
496d88d4 | 634 | SaveFuncs.write(f, pMem, 128 * 96 * 3); |
ef79bbde P |
635 | free(pMem); |
636 | ||
637 | if (Config.HLE) | |
638 | psxBiosFreeze(1); | |
639 | ||
496d88d4 | 640 | SaveFuncs.write(f, psxM, 0x00200000); |
641 | SaveFuncs.write(f, psxR, 0x00080000); | |
642 | SaveFuncs.write(f, psxH, 0x00010000); | |
630b122b | 643 | // only partial save of psxRegisters to maintain savestate compat |
644 | SaveFuncs.write(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); | |
ef79bbde P |
645 | |
646 | // gpu | |
647 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
648 | gpufP->ulFreezeVersion = 1; | |
649 | GPU_freeze(1, gpufP); | |
496d88d4 | 650 | SaveFuncs.write(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
651 | free(gpufP); |
652 | ||
653 | // spu | |
6c62131f | 654 | spufH = malloc(sizeof(*spufH)); |
655 | SPU_freeze(2, (SPUFreeze_t *)spufH, psxRegs.cycle); | |
656 | Size = spufH->Size; SaveFuncs.write(f, &Size, 4); | |
657 | free(spufH); | |
ef79bbde | 658 | spufP = (SPUFreeze_t *) malloc(Size); |
650adfd2 | 659 | SPU_freeze(1, spufP, psxRegs.cycle); |
496d88d4 | 660 | SaveFuncs.write(f, spufP, Size); |
ef79bbde P |
661 | free(spufP); |
662 | ||
663 | sioFreeze(f, 1); | |
664 | cdrFreeze(f, 1); | |
665 | psxHwFreeze(f, 1); | |
666 | psxRcntFreeze(f, 1); | |
667 | mdecFreeze(f, 1); | |
03f55e6b | 668 | new_dyna_freeze(f, 1); |
ef79bbde | 669 | |
496d88d4 | 670 | SaveFuncs.close(f); |
ef79bbde P |
671 | |
672 | return 0; | |
673 | } | |
674 | ||
675 | int LoadState(const char *file) { | |
496d88d4 | 676 | void *f; |
ef79bbde P |
677 | GPUFreeze_t *gpufP; |
678 | SPUFreeze_t *spufP; | |
679 | int Size; | |
680 | char header[32]; | |
681 | u32 version; | |
682 | boolean hle; | |
683 | ||
496d88d4 | 684 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
685 | if (f == NULL) return -1; |
686 | ||
496d88d4 | 687 | SaveFuncs.read(f, header, sizeof(header)); |
688 | SaveFuncs.read(f, &version, sizeof(u32)); | |
689 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 690 | |
33f56da1 | 691 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
496d88d4 | 692 | SaveFuncs.close(f); |
ef79bbde P |
693 | return -1; |
694 | } | |
33f56da1 | 695 | Config.HLE = hle; |
696 | ||
697 | if (Config.HLE) | |
698 | psxBiosInit(); | |
ef79bbde | 699 | |
496d88d4 | 700 | SaveFuncs.seek(f, 128 * 96 * 3, SEEK_CUR); |
496d88d4 | 701 | SaveFuncs.read(f, psxM, 0x00200000); |
702 | SaveFuncs.read(f, psxR, 0x00080000); | |
703 | SaveFuncs.read(f, psxH, 0x00010000); | |
630b122b | 704 | SaveFuncs.read(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); |
705 | psxRegs.gteBusyCycle = psxRegs.cycle; | |
ef79bbde | 706 | |
20196899 | 707 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
6962f770 | 708 | |
ef79bbde P |
709 | if (Config.HLE) |
710 | psxBiosFreeze(0); | |
711 | ||
712 | // gpu | |
713 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
496d88d4 | 714 | SaveFuncs.read(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
715 | GPU_freeze(0, gpufP); |
716 | free(gpufP); | |
ddbaf678 | 717 | if (HW_GPU_STATUS == 0) |
adb7d7ac | 718 | HW_GPU_STATUS = SWAP32(GPU_readStatus()); |
ef79bbde P |
719 | |
720 | // spu | |
496d88d4 | 721 | SaveFuncs.read(f, &Size, 4); |
ef79bbde | 722 | spufP = (SPUFreeze_t *)malloc(Size); |
496d88d4 | 723 | SaveFuncs.read(f, spufP, Size); |
650adfd2 | 724 | SPU_freeze(0, spufP, psxRegs.cycle); |
ef79bbde P |
725 | free(spufP); |
726 | ||
727 | sioFreeze(f, 0); | |
728 | cdrFreeze(f, 0); | |
729 | psxHwFreeze(f, 0); | |
730 | psxRcntFreeze(f, 0); | |
731 | mdecFreeze(f, 0); | |
03f55e6b | 732 | new_dyna_freeze(f, 0); |
ef79bbde | 733 | |
496d88d4 | 734 | SaveFuncs.close(f); |
ef79bbde P |
735 | |
736 | return 0; | |
737 | } | |
738 | ||
739 | int CheckState(const char *file) { | |
496d88d4 | 740 | void *f; |
ef79bbde P |
741 | char header[32]; |
742 | u32 version; | |
743 | boolean hle; | |
744 | ||
496d88d4 | 745 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
746 | if (f == NULL) return -1; |
747 | ||
496d88d4 | 748 | SaveFuncs.read(f, header, sizeof(header)); |
749 | SaveFuncs.read(f, &version, sizeof(u32)); | |
750 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 751 | |
496d88d4 | 752 | SaveFuncs.close(f); |
ef79bbde | 753 | |
33f56da1 | 754 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
ef79bbde P |
755 | return -1; |
756 | ||
757 | return 0; | |
758 | } | |
759 | ||
760 | // NET Function Helpers | |
761 | ||
762 | int SendPcsxInfo() { | |
763 | if (NET_recvData == NULL || NET_sendData == NULL) | |
764 | return 0; | |
765 | ||
840639a5 | 766 | boolean Sio_old = 0; |
767 | boolean SpuIrq_old = 0; | |
768 | boolean RCntFix_old = 0; | |
ef79bbde | 769 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
840639a5 | 770 | NET_sendData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
771 | NET_sendData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); | |
772 | NET_sendData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); | |
ef79bbde P |
773 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
774 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
779 | int RecvPcsxInfo() { | |
780 | int tmp; | |
781 | ||
782 | if (NET_recvData == NULL || NET_sendData == NULL) | |
783 | return 0; | |
784 | ||
840639a5 | 785 | boolean Sio_old = 0; |
786 | boolean SpuIrq_old = 0; | |
787 | boolean RCntFix_old = 0; | |
ef79bbde | 788 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
840639a5 | 789 | NET_recvData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
790 | NET_recvData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); | |
791 | NET_recvData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); | |
ef79bbde P |
792 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
793 | ||
794 | SysUpdate(); | |
795 | ||
796 | tmp = Config.Cpu; | |
797 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
798 | if (tmp != Config.Cpu) { | |
799 | psxCpu->Shutdown(); | |
630b122b | 800 | #ifndef DRC_DISABLE |
ef79bbde P |
801 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
802 | else psxCpu = &psxRec; | |
803 | #else | |
804 | psxCpu = &psxInt; | |
805 | #endif | |
806 | if (psxCpu->Init() == -1) { | |
807 | SysClose(); return -1; | |
808 | } | |
809 | psxCpu->Reset(); | |
20196899 | 810 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
ef79bbde P |
811 | } |
812 | ||
813 | return 0; | |
814 | } | |
815 | ||
816 | // remove the leading and trailing spaces in a string | |
817 | void trim(char *str) { | |
818 | int pos = 0; | |
819 | char *dest = str; | |
820 | ||
821 | // skip leading blanks | |
822 | while (str[pos] <= ' ' && str[pos] > 0) | |
823 | pos++; | |
824 | ||
825 | while (str[pos]) { | |
826 | *(dest++) = str[pos]; | |
827 | pos++; | |
828 | } | |
829 | ||
830 | *(dest--) = '\0'; // store the null | |
831 | ||
832 | // remove trailing blanks | |
833 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
834 | *(dest--) = '\0'; | |
835 | } | |
836 | ||
837 | // lookup table for crc calculation | |
838 | static unsigned short crctab[256] = { | |
839 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
840 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
841 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
842 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
843 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
844 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
845 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
846 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
847 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
848 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
849 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
850 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
851 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
852 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
853 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
854 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
855 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
856 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
857 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
858 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
859 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
860 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
861 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
862 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
863 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
864 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
865 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
866 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
867 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
868 | }; | |
869 | ||
870 | u16 calcCrc(u8 *d, int len) { | |
871 | u16 crc = 0; | |
872 | int i; | |
873 | ||
874 | for (i = 0; i < len; i++) { | |
875 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
876 | } | |
877 | ||
878 | return ~crc; | |
879 | } |