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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]); | |
4db82c07 | 167 | |
168 | HW_GPU_STATUS |= SWAP32(PSXGPU_nBUSY); | |
f3a78e7e | 169 | } |
170 | ||
6c62131f | 171 | static void SetBootRegs(u32 pc, u32 gp, u32 sp) |
172 | { | |
173 | //printf("%s %08x %08x %08x\n", __func__, pc, gp, sp); | |
174 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); | |
175 | ||
176 | psxRegs.pc = pc; | |
177 | psxRegs.GPR.n.gp = gp; | |
178 | psxRegs.GPR.n.sp = sp ? sp : 0x801fff00; | |
179 | ||
180 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); | |
181 | } | |
182 | ||
f5f5f5dd | 183 | void BiosBootBypass() { |
184 | assert(psxRegs.pc == 0x80030000); | |
185 | ||
186 | // skip BIOS logos and region check | |
187 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); | |
188 | psxRegs.pc = psxRegs.GPR.n.ra; | |
189 | } | |
190 | ||
ef79bbde P |
191 | int LoadCdrom() { |
192 | EXE_HEADER tmpHead; | |
193 | struct iso_directory_record *dir; | |
194 | u8 time[4], *buf; | |
195 | u8 mdir[4096]; | |
305c8c93 | 196 | char exename[256]; |
ef79bbde | 197 | |
f5f5f5dd | 198 | if (!Config.HLE) { |
f3bc907d | 199 | if (psxRegs.pc != 0x80030000) // BiosBootBypass'ed or custom BIOS? |
200 | return 0; | |
201 | if (Config.SlowBoot) | |
202 | return 0; | |
ef79bbde P |
203 | } |
204 | ||
205 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
206 | ||
207 | READTRACK(); | |
208 | ||
209 | // skip head and sub, and go to the root directory record | |
3e42b115 | 210 | dir = (struct iso_directory_record*) &buf[12+156]; |
ef79bbde P |
211 | |
212 | mmssdd(dir->extent, (char*)time); | |
213 | ||
214 | READDIR(mdir); | |
215 | ||
216 | // Load SYSTEM.CNF and scan for the main executable | |
217 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { | |
218 | // if SYSTEM.CNF is missing, start an existing PSX.EXE | |
219 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; | |
f5f5f5dd | 220 | strcpy(exename, "PSX.EXE;1"); |
ef79bbde P |
221 | |
222 | READTRACK(); | |
223 | } | |
224 | else { | |
225 | // read the SYSTEM.CNF | |
226 | READTRACK(); | |
227 | ||
9a9bcd78 | 228 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 229 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 230 | sscanf((char *)buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde | 231 | if (GetCdromFile(mdir, time, exename) == -1) { |
305c8c93 | 232 | char *ptr = strstr((char *)buf + 12, "cdrom:"); |
ef79bbde P |
233 | if (ptr != NULL) { |
234 | ptr += 6; | |
235 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
236 | strncpy(exename, ptr, 255); | |
237 | exename[255] = '\0'; | |
238 | ptr = exename; | |
239 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
240 | *ptr = '\0'; | |
241 | if (GetCdromFile(mdir, time, exename) == -1) | |
242 | return -1; | |
243 | } else | |
244 | return -1; | |
245 | } | |
246 | } | |
247 | ||
248 | // Read the EXE-Header | |
249 | READTRACK(); | |
250 | } | |
251 | ||
252 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); | |
253 | ||
f5f5f5dd | 254 | SysPrintf("manual booting '%s'\n", exename); |
6c62131f | 255 | SetBootRegs(SWAP32(tmpHead.pc0), SWAP32(tmpHead.gp0), SWAP32(tmpHead.s_addr)); |
ef79bbde P |
256 | |
257 | tmpHead.t_size = SWAP32(tmpHead.t_size); | |
258 | tmpHead.t_addr = SWAP32(tmpHead.t_addr); | |
259 | ||
ebe6ff2b | 260 | psxCpu->Clear(tmpHead.t_addr, tmpHead.t_size / 4); |
952943a7 | 261 | psxCpu->Reset(); |
ebe6ff2b | 262 | |
ef79bbde | 263 | // Read the rest of the main executable |
ebe6ff2b | 264 | while (tmpHead.t_size & ~2047) { |
ef79bbde P |
265 | void *ptr = (void *)PSXM(tmpHead.t_addr); |
266 | ||
267 | incTime(); | |
268 | READTRACK(); | |
269 | ||
b012a437 | 270 | if (ptr != INVALID_PTR) memcpy(ptr, buf+12, 2048); |
ef79bbde P |
271 | |
272 | tmpHead.t_size -= 2048; | |
273 | tmpHead.t_addr += 2048; | |
274 | } | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
279 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { | |
280 | struct iso_directory_record *dir; | |
281 | u8 time[4],*buf; | |
305c8c93 | 282 | u8 mdir[4096]; |
283 | char exename[256]; | |
ef79bbde | 284 | u32 size, addr; |
305c8c93 | 285 | void *mem; |
ef79bbde | 286 | |
9a9bcd78 | 287 | sscanf(filename, "cdrom:\\%255s", exename); |
ef79bbde P |
288 | |
289 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
290 | ||
291 | READTRACK(); | |
292 | ||
293 | // skip head and sub, and go to the root directory record | |
3e42b115 | 294 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
295 | |
296 | mmssdd(dir->extent, (char*)time); | |
297 | ||
298 | READDIR(mdir); | |
299 | ||
300 | if (GetCdromFile(mdir, time, exename) == -1) return -1; | |
301 | ||
302 | READTRACK(); | |
303 | ||
304 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
305 | size = head->t_size; | |
306 | addr = head->t_addr; | |
307 | ||
ebe6ff2b | 308 | psxCpu->Clear(addr, size / 4); |
952943a7 | 309 | psxCpu->Reset(); |
ebe6ff2b | 310 | |
311 | while (size & ~2047) { | |
ef79bbde P |
312 | incTime(); |
313 | READTRACK(); | |
314 | ||
305c8c93 | 315 | mem = PSXM(addr); |
b012a437 | 316 | if (mem != INVALID_PTR) |
305c8c93 | 317 | memcpy(mem, buf + 12, 2048); |
ef79bbde P |
318 | |
319 | size -= 2048; | |
320 | addr += 2048; | |
321 | } | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | int CheckCdrom() { | |
327 | struct iso_directory_record *dir; | |
305c8c93 | 328 | unsigned char time[4]; |
329 | char *buf; | |
ef79bbde P |
330 | unsigned char mdir[4096]; |
331 | char exename[256]; | |
e06ee7f4 | 332 | int i, len, c; |
ef79bbde P |
333 | |
334 | FreePPFCache(); | |
335 | ||
336 | time[0] = itob(0); | |
337 | time[1] = itob(2); | |
338 | time[2] = itob(0x10); | |
339 | ||
340 | READTRACK(); | |
341 | ||
e06ee7f4 | 342 | memset(CdromLabel, 0, sizeof(CdromLabel)); |
343 | memset(CdromId, 0, sizeof(CdromId)); | |
344 | memset(exename, 0, sizeof(exename)); | |
ef79bbde P |
345 | |
346 | strncpy(CdromLabel, buf + 52, 32); | |
347 | ||
348 | // skip head and sub, and go to the root directory record | |
3e42b115 | 349 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
350 | |
351 | mmssdd(dir->extent, (char *)time); | |
352 | ||
353 | READDIR(mdir); | |
354 | ||
355 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
356 | READTRACK(); | |
357 | ||
9a9bcd78 | 358 | sscanf(buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 359 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 360 | sscanf(buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde P |
361 | if (GetCdromFile(mdir, time, exename) == -1) { |
362 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
363 | if (ptr != NULL) { | |
364 | ptr += 6; | |
365 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
366 | strncpy(exename, ptr, 255); | |
367 | exename[255] = '\0'; | |
368 | ptr = exename; | |
369 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
370 | *ptr = '\0'; | |
371 | if (GetCdromFile(mdir, time, exename) == -1) | |
372 | return -1; // main executable not found | |
373 | } else | |
374 | return -1; | |
375 | } | |
376 | } | |
1893f408 | 377 | /* Workaround for Wild Arms EU/US which has non-standard string causing incorrect region detection */ |
378 | if (exename[0] == 'E' && exename[1] == 'X' && exename[2] == 'E' && exename[3] == '\\') { | |
379 | size_t offset = 4; | |
380 | size_t i, len = strlen(exename) - offset; | |
381 | for (i = 0; i < len; i++) | |
382 | exename[i] = exename[i + offset]; | |
383 | exename[i] = '\0'; | |
384 | } | |
ef79bbde P |
385 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { |
386 | strcpy(exename, "PSX.EXE;1"); | |
387 | strcpy(CdromId, "SLUS99999"); | |
388 | } else | |
389 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
390 | ||
391 | if (CdromId[0] == '\0') { | |
e06ee7f4 | 392 | len = strlen(exename); |
393 | c = 0; | |
394 | for (i = 0; i < len; ++i) { | |
395 | if (exename[i] == ';' || c >= sizeof(CdromId) - 1) | |
396 | break; | |
397 | if (isalnum(exename[i])) | |
398 | CdromId[c++] = exename[i]; | |
ef79bbde P |
399 | } |
400 | } | |
401 | ||
0e2e3f49 | 402 | if (CdromId[0] == '\0') |
403 | strcpy(CdromId, "SLUS99999"); | |
404 | ||
ef79bbde | 405 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
630b122b | 406 | if ( |
407 | /* Make sure Wild Arms SCUS-94608 is not detected as a PAL game. */ | |
408 | ((CdromId[0] == 's' || CdromId[0] == 'S') && (CdromId[2] == 'e' || CdromId[2] == 'E')) || | |
409 | !strncmp(CdromId, "DTLS3035", 8) || | |
410 | !strncmp(CdromId, "PBPX95001", 9) || // according to redump.org, these PAL | |
411 | !strncmp(CdromId, "PBPX95007", 9) || // discs have a non-standard ID; | |
412 | !strncmp(CdromId, "PBPX95008", 9)) // add more serials if they are discovered. | |
ef79bbde P |
413 | Config.PsxType = PSX_TYPE_PAL; // pal |
414 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
415 | } | |
416 | ||
417 | if (CdromLabel[0] == ' ') { | |
630b122b | 418 | strncpy(CdromLabel, CdromId, 9); |
ef79bbde P |
419 | } |
420 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
421 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
e06ee7f4 | 422 | SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename); |
630b122b | 423 | |
424 | Apply_Hacks_Cdrom(); | |
ef79bbde P |
425 | |
426 | BuildPPFCache(); | |
427 | ||
428 | return 0; | |
429 | } | |
430 | ||
431 | static int PSXGetFileType(FILE *f) { | |
432 | unsigned long current; | |
433 | u8 mybuf[2048]; | |
434 | EXE_HEADER *exe_hdr; | |
435 | FILHDR *coff_hdr; | |
436 | ||
437 | current = ftell(f); | |
438 | fseek(f, 0L, SEEK_SET); | |
5b568098 | 439 | if (fread(&mybuf, 1, sizeof(mybuf), f) != sizeof(mybuf)) |
9361a5aa EC |
440 | goto io_fail; |
441 | ||
ef79bbde P |
442 | fseek(f, current, SEEK_SET); |
443 | ||
444 | exe_hdr = (EXE_HEADER *)mybuf; | |
445 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
446 | return PSX_EXE; | |
447 | ||
448 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
449 | return CPE_EXE; | |
450 | ||
451 | coff_hdr = (FILHDR *)mybuf; | |
452 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
453 | return COFF_EXE; | |
454 | ||
455 | return INVALID_EXE; | |
9361a5aa EC |
456 | |
457 | io_fail: | |
458 | #ifndef NDEBUG | |
459 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
460 | #endif | |
461 | return INVALID_EXE; | |
ef79bbde P |
462 | } |
463 | ||
96bef96f | 464 | // temporary pandora workaround.. |
465 | // FIXME: remove | |
466 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
467 | { | |
468 | void *tmp; | |
469 | size_t ret = 0; | |
3e42b115 | 470 | |
96bef96f | 471 | tmp = malloc(size * nmemb); |
472 | if (tmp) { | |
473 | ret = fread(tmp, size, nmemb, stream); | |
474 | memcpy(ptr, tmp, size * nmemb); | |
475 | free(tmp); | |
476 | } | |
477 | return ret; | |
478 | } | |
479 | ||
ef79bbde P |
480 | int Load(const char *ExePath) { |
481 | FILE *tmpFile; | |
482 | EXE_HEADER tmpHead; | |
483 | int type; | |
484 | int retval = 0; | |
485 | u8 opcode; | |
486 | u32 section_address, section_size; | |
ebe6ff2b | 487 | void *mem; |
ef79bbde | 488 | |
3e42b115 | 489 | strcpy(CdromId, "SLUS99999"); |
490 | strcpy(CdromLabel, "SLUS_999.99"); | |
ef79bbde P |
491 | |
492 | tmpFile = fopen(ExePath, "rb"); | |
493 | if (tmpFile == NULL) { | |
494 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
495 | retval = -1; | |
496 | } else { | |
497 | type = PSXGetFileType(tmpFile); | |
498 | switch (type) { | |
499 | case PSX_EXE: | |
5b568098 | 500 | if (fread(&tmpHead, 1, sizeof(EXE_HEADER), tmpFile) != sizeof(EXE_HEADER)) |
9361a5aa | 501 | goto fail_io; |
ebe6ff2b | 502 | section_address = SWAP32(tmpHead.t_addr); |
503 | section_size = SWAP32(tmpHead.t_size); | |
504 | mem = PSXM(section_address); | |
b012a437 | 505 | if (mem != INVALID_PTR) { |
3e42b115 | 506 | fseek(tmpFile, 0x800, SEEK_SET); |
96bef96f | 507 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 508 | psxCpu->Clear(section_address, section_size / 4); |
509 | } | |
6c62131f | 510 | SetBootRegs(SWAP32(tmpHead.pc0), SWAP32(tmpHead.gp0), |
511 | SWAP32(tmpHead.s_addr)); | |
ef79bbde P |
512 | retval = 0; |
513 | break; | |
514 | case CPE_EXE: | |
515 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
516 | do { | |
5b568098 | 517 | if (fread(&opcode, 1, sizeof(opcode), tmpFile) != sizeof(opcode)) |
9361a5aa | 518 | goto fail_io; |
ef79bbde P |
519 | switch (opcode) { |
520 | case 1: /* Section loading */ | |
5b568098 | 521 | if (fread(§ion_address, 1, sizeof(section_address), tmpFile) != sizeof(section_address)) |
9361a5aa | 522 | goto fail_io; |
5b568098 | 523 | if (fread(§ion_size, 1, sizeof(section_size), tmpFile) != sizeof(section_size)) |
9361a5aa | 524 | goto fail_io; |
ef79bbde P |
525 | section_address = SWAPu32(section_address); |
526 | section_size = SWAPu32(section_size); | |
527 | #ifdef EMU_LOG | |
528 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
529 | #endif | |
ebe6ff2b | 530 | mem = PSXM(section_address); |
b012a437 | 531 | if (mem != INVALID_PTR) { |
96bef96f | 532 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 533 | psxCpu->Clear(section_address, section_size / 4); |
534 | } | |
ef79bbde P |
535 | break; |
536 | case 3: /* register loading (PC only?) */ | |
537 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
5b568098 | 538 | if (fread(&psxRegs.pc, 1, sizeof(psxRegs.pc), tmpFile) != sizeof(psxRegs.pc)) |
9361a5aa | 539 | goto fail_io; |
ef79bbde P |
540 | psxRegs.pc = SWAPu32(psxRegs.pc); |
541 | break; | |
542 | case 0: /* End of file */ | |
543 | break; | |
544 | default: | |
545 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
546 | retval = -1; | |
547 | break; | |
548 | } | |
549 | } while (opcode != 0 && retval == 0); | |
550 | break; | |
551 | case COFF_EXE: | |
552 | SysPrintf(_("COFF files not supported.\n")); | |
553 | retval = -1; | |
554 | break; | |
555 | case INVALID_EXE: | |
8f00f96c | 556 | SysPrintf(_("This file does not appear to be a valid PSX EXE file.\n")); |
557 | SysPrintf(_("(did you forget -cdfile ?)\n")); | |
ef79bbde P |
558 | retval = -1; |
559 | break; | |
560 | } | |
561 | } | |
562 | ||
563 | if (retval != 0) { | |
564 | CdromId[0] = '\0'; | |
565 | CdromLabel[0] = '\0'; | |
566 | } | |
567 | ||
5b568098 | 568 | if (tmpFile) |
569 | fclose(tmpFile); | |
ef79bbde | 570 | return retval; |
9361a5aa EC |
571 | |
572 | fail_io: | |
573 | #ifndef NDEBUG | |
574 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
575 | #endif | |
576 | fclose(tmpFile); | |
577 | return -1; | |
ef79bbde P |
578 | } |
579 | ||
580 | // STATES | |
581 | ||
496d88d4 | 582 | static void *zlib_open(const char *name, const char *mode) |
583 | { | |
584 | return gzopen(name, mode); | |
585 | } | |
586 | ||
587 | static int zlib_read(void *file, void *buf, u32 len) | |
588 | { | |
589 | return gzread(file, buf, len); | |
590 | } | |
591 | ||
592 | static int zlib_write(void *file, const void *buf, u32 len) | |
593 | { | |
594 | return gzwrite(file, buf, len); | |
595 | } | |
596 | ||
597 | static long zlib_seek(void *file, long offs, int whence) | |
598 | { | |
599 | return gzseek(file, offs, whence); | |
600 | } | |
601 | ||
602 | static void zlib_close(void *file) | |
603 | { | |
604 | gzclose(file); | |
605 | } | |
606 | ||
607 | struct PcsxSaveFuncs SaveFuncs = { | |
608 | zlib_open, zlib_read, zlib_write, zlib_seek, zlib_close | |
609 | }; | |
610 | ||
202b29d4 | 611 | static const char PcsxHeader[32] = "STv4 PCSX v" PCSX_VERSION; |
ef79bbde P |
612 | |
613 | // Savestate Versioning! | |
614 | // If you make changes to the savestate version, please increment the value below. | |
df656dde | 615 | static const u32 SaveVersion = 0x8b410006; |
ef79bbde P |
616 | |
617 | int SaveState(const char *file) { | |
496d88d4 | 618 | void *f; |
ef79bbde | 619 | GPUFreeze_t *gpufP; |
6c62131f | 620 | SPUFreezeHdr_t *spufH; |
ef79bbde P |
621 | SPUFreeze_t *spufP; |
622 | int Size; | |
623 | unsigned char *pMem; | |
624 | ||
496d88d4 | 625 | f = SaveFuncs.open(file, "wb"); |
ef79bbde P |
626 | if (f == NULL) return -1; |
627 | ||
20196899 | 628 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); |
6962f770 | 629 | |
496d88d4 | 630 | SaveFuncs.write(f, (void *)PcsxHeader, 32); |
631 | SaveFuncs.write(f, (void *)&SaveVersion, sizeof(u32)); | |
632 | SaveFuncs.write(f, (void *)&Config.HLE, sizeof(boolean)); | |
ef79bbde P |
633 | |
634 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
635 | if (pMem == NULL) return -1; | |
636 | GPU_getScreenPic(pMem); | |
496d88d4 | 637 | SaveFuncs.write(f, pMem, 128 * 96 * 3); |
ef79bbde P |
638 | free(pMem); |
639 | ||
640 | if (Config.HLE) | |
641 | psxBiosFreeze(1); | |
642 | ||
496d88d4 | 643 | SaveFuncs.write(f, psxM, 0x00200000); |
644 | SaveFuncs.write(f, psxR, 0x00080000); | |
645 | SaveFuncs.write(f, psxH, 0x00010000); | |
630b122b | 646 | // only partial save of psxRegisters to maintain savestate compat |
647 | SaveFuncs.write(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); | |
ef79bbde P |
648 | |
649 | // gpu | |
650 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
651 | gpufP->ulFreezeVersion = 1; | |
652 | GPU_freeze(1, gpufP); | |
496d88d4 | 653 | SaveFuncs.write(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
654 | free(gpufP); |
655 | ||
656 | // spu | |
6c62131f | 657 | spufH = malloc(sizeof(*spufH)); |
658 | SPU_freeze(2, (SPUFreeze_t *)spufH, psxRegs.cycle); | |
659 | Size = spufH->Size; SaveFuncs.write(f, &Size, 4); | |
660 | free(spufH); | |
ef79bbde | 661 | spufP = (SPUFreeze_t *) malloc(Size); |
650adfd2 | 662 | SPU_freeze(1, spufP, psxRegs.cycle); |
496d88d4 | 663 | SaveFuncs.write(f, spufP, Size); |
ef79bbde P |
664 | free(spufP); |
665 | ||
666 | sioFreeze(f, 1); | |
667 | cdrFreeze(f, 1); | |
668 | psxHwFreeze(f, 1); | |
669 | psxRcntFreeze(f, 1); | |
670 | mdecFreeze(f, 1); | |
03f55e6b | 671 | new_dyna_freeze(f, 1); |
ef79bbde | 672 | |
496d88d4 | 673 | SaveFuncs.close(f); |
ef79bbde P |
674 | |
675 | return 0; | |
676 | } | |
677 | ||
678 | int LoadState(const char *file) { | |
496d88d4 | 679 | void *f; |
ef79bbde P |
680 | GPUFreeze_t *gpufP; |
681 | SPUFreeze_t *spufP; | |
682 | int Size; | |
683 | char header[32]; | |
684 | u32 version; | |
685 | boolean hle; | |
686 | ||
496d88d4 | 687 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
688 | if (f == NULL) return -1; |
689 | ||
496d88d4 | 690 | SaveFuncs.read(f, header, sizeof(header)); |
691 | SaveFuncs.read(f, &version, sizeof(u32)); | |
692 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 693 | |
33f56da1 | 694 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
496d88d4 | 695 | SaveFuncs.close(f); |
ef79bbde P |
696 | return -1; |
697 | } | |
33f56da1 | 698 | Config.HLE = hle; |
699 | ||
700 | if (Config.HLE) | |
701 | psxBiosInit(); | |
ef79bbde | 702 | |
496d88d4 | 703 | SaveFuncs.seek(f, 128 * 96 * 3, SEEK_CUR); |
496d88d4 | 704 | SaveFuncs.read(f, psxM, 0x00200000); |
705 | SaveFuncs.read(f, psxR, 0x00080000); | |
706 | SaveFuncs.read(f, psxH, 0x00010000); | |
630b122b | 707 | SaveFuncs.read(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); |
708 | psxRegs.gteBusyCycle = psxRegs.cycle; | |
ef79bbde | 709 | |
20196899 | 710 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
6962f770 | 711 | |
ef79bbde P |
712 | if (Config.HLE) |
713 | psxBiosFreeze(0); | |
714 | ||
715 | // gpu | |
716 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
496d88d4 | 717 | SaveFuncs.read(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
718 | GPU_freeze(0, gpufP); |
719 | free(gpufP); | |
ddbaf678 | 720 | if (HW_GPU_STATUS == 0) |
adb7d7ac | 721 | HW_GPU_STATUS = SWAP32(GPU_readStatus()); |
ef79bbde P |
722 | |
723 | // spu | |
496d88d4 | 724 | SaveFuncs.read(f, &Size, 4); |
ef79bbde | 725 | spufP = (SPUFreeze_t *)malloc(Size); |
496d88d4 | 726 | SaveFuncs.read(f, spufP, Size); |
650adfd2 | 727 | SPU_freeze(0, spufP, psxRegs.cycle); |
ef79bbde P |
728 | free(spufP); |
729 | ||
730 | sioFreeze(f, 0); | |
731 | cdrFreeze(f, 0); | |
732 | psxHwFreeze(f, 0); | |
733 | psxRcntFreeze(f, 0); | |
734 | mdecFreeze(f, 0); | |
03f55e6b | 735 | new_dyna_freeze(f, 0); |
ef79bbde | 736 | |
496d88d4 | 737 | SaveFuncs.close(f); |
ef79bbde P |
738 | |
739 | return 0; | |
740 | } | |
741 | ||
742 | int CheckState(const char *file) { | |
496d88d4 | 743 | void *f; |
ef79bbde P |
744 | char header[32]; |
745 | u32 version; | |
746 | boolean hle; | |
747 | ||
496d88d4 | 748 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
749 | if (f == NULL) return -1; |
750 | ||
496d88d4 | 751 | SaveFuncs.read(f, header, sizeof(header)); |
752 | SaveFuncs.read(f, &version, sizeof(u32)); | |
753 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 754 | |
496d88d4 | 755 | SaveFuncs.close(f); |
ef79bbde | 756 | |
33f56da1 | 757 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
ef79bbde P |
758 | return -1; |
759 | ||
760 | return 0; | |
761 | } | |
762 | ||
763 | // NET Function Helpers | |
764 | ||
765 | int SendPcsxInfo() { | |
766 | if (NET_recvData == NULL || NET_sendData == NULL) | |
767 | return 0; | |
768 | ||
840639a5 | 769 | boolean Sio_old = 0; |
770 | boolean SpuIrq_old = 0; | |
771 | boolean RCntFix_old = 0; | |
ef79bbde | 772 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
840639a5 | 773 | NET_sendData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
774 | NET_sendData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); | |
775 | NET_sendData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); | |
ef79bbde P |
776 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
777 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
778 | ||
779 | return 0; | |
780 | } | |
781 | ||
782 | int RecvPcsxInfo() { | |
783 | int tmp; | |
784 | ||
785 | if (NET_recvData == NULL || NET_sendData == NULL) | |
786 | return 0; | |
787 | ||
840639a5 | 788 | boolean Sio_old = 0; |
789 | boolean SpuIrq_old = 0; | |
790 | boolean RCntFix_old = 0; | |
ef79bbde | 791 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
840639a5 | 792 | NET_recvData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
793 | NET_recvData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); | |
794 | NET_recvData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); | |
ef79bbde P |
795 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
796 | ||
797 | SysUpdate(); | |
798 | ||
799 | tmp = Config.Cpu; | |
800 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
801 | if (tmp != Config.Cpu) { | |
802 | psxCpu->Shutdown(); | |
630b122b | 803 | #ifndef DRC_DISABLE |
ef79bbde P |
804 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
805 | else psxCpu = &psxRec; | |
806 | #else | |
807 | psxCpu = &psxInt; | |
808 | #endif | |
809 | if (psxCpu->Init() == -1) { | |
810 | SysClose(); return -1; | |
811 | } | |
812 | psxCpu->Reset(); | |
20196899 | 813 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
ef79bbde P |
814 | } |
815 | ||
816 | return 0; | |
817 | } | |
818 | ||
819 | // remove the leading and trailing spaces in a string | |
820 | void trim(char *str) { | |
821 | int pos = 0; | |
822 | char *dest = str; | |
823 | ||
824 | // skip leading blanks | |
825 | while (str[pos] <= ' ' && str[pos] > 0) | |
826 | pos++; | |
827 | ||
828 | while (str[pos]) { | |
829 | *(dest++) = str[pos]; | |
830 | pos++; | |
831 | } | |
832 | ||
833 | *(dest--) = '\0'; // store the null | |
834 | ||
835 | // remove trailing blanks | |
836 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
837 | *(dest--) = '\0'; | |
838 | } | |
839 | ||
840 | // lookup table for crc calculation | |
841 | static unsigned short crctab[256] = { | |
842 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
843 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
844 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
845 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
846 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
847 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
848 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
849 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
850 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
851 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
852 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
853 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
854 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
855 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
856 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
857 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
858 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
859 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
860 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
861 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
862 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
863 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
864 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
865 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
866 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
867 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
868 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
869 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
870 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
871 | }; | |
872 | ||
873 | u16 calcCrc(u8 *d, int len) { | |
874 | u16 crc = 0; | |
875 | int i; | |
876 | ||
877 | for (i = 0; i < len; i++) { | |
878 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
879 | } | |
880 | ||
881 | return ~crc; | |
882 | } |