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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> |
ef79bbde P |
25 | #include "misc.h" |
26 | #include "cdrom.h" | |
27 | #include "mdec.h" | |
ddbaf678 | 28 | #include "gpu.h" |
ef79bbde | 29 | #include "ppf.h" |
630b122b | 30 | #include "database.h" |
70939d49 | 31 | #include "lightrec/plugin.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 | ||
59 | void mmssdd( char *b, char *p ) | |
60 | { | |
61 | int m, s, d; | |
507aaf98 | 62 | #if defined(__arm__) |
7e443736 | 63 | unsigned char *u = (void *)b; |
64 | int block = (u[3] << 24) | (u[2] << 16) | (u[1] << 8) | u[0]; | |
507aaf98 | 65 | #elif defined(__BIGENDIAN__) |
ef79bbde P |
66 | int block = (b[0] & 0xff) | ((b[1] & 0xff) << 8) | ((b[2] & 0xff) << 16) | (b[3] << 24); |
67 | #else | |
68 | int block = *((int*)b); | |
69 | #endif | |
70 | ||
71 | block += 150; | |
72 | m = block / 4500; // minutes | |
73 | block = block - m * 4500; // minutes rest | |
74 | s = block / 75; // seconds | |
75 | d = block - s * 75; // seconds rest | |
76 | ||
77 | m = ((m / 10) << 4) | m % 10; | |
78 | s = ((s / 10) << 4) | s % 10; | |
3e42b115 | 79 | d = ((d / 10) << 4) | d % 10; |
ef79bbde P |
80 | |
81 | p[0] = m; | |
82 | p[1] = s; | |
83 | p[2] = d; | |
84 | } | |
85 | ||
86 | #define incTime() \ | |
87 | time[0] = btoi(time[0]); time[1] = btoi(time[1]); time[2] = btoi(time[2]); \ | |
88 | time[2]++; \ | |
89 | if(time[2] == 75) { \ | |
90 | time[2] = 0; \ | |
91 | time[1]++; \ | |
92 | if (time[1] == 60) { \ | |
93 | time[1] = 0; \ | |
94 | time[0]++; \ | |
95 | } \ | |
96 | } \ | |
97 | time[0] = itob(time[0]); time[1] = itob(time[1]); time[2] = itob(time[2]); | |
98 | ||
99 | #define READTRACK() \ | |
100 | if (CDR_readTrack(time) == -1) return -1; \ | |
305c8c93 | 101 | buf = (void *)CDR_getBuffer(); \ |
102 | if (buf == NULL) return -1; \ | |
103 | else CheckPPFCache((u8 *)buf, time[0], time[1], time[2]); | |
ef79bbde P |
104 | |
105 | #define READDIR(_dir) \ | |
106 | READTRACK(); \ | |
107 | memcpy(_dir, buf + 12, 2048); \ | |
108 | \ | |
109 | incTime(); \ | |
110 | READTRACK(); \ | |
111 | memcpy(_dir + 2048, buf + 12, 2048); | |
112 | ||
305c8c93 | 113 | int GetCdromFile(u8 *mdir, u8 *time, char *filename) { |
ef79bbde | 114 | struct iso_directory_record *dir; |
5be6eaeb | 115 | int retval = -1; |
305c8c93 | 116 | u8 ddir[4096]; |
ef79bbde P |
117 | u8 *buf; |
118 | int i; | |
119 | ||
120 | // only try to scan if a filename is given | |
121 | if (!strlen(filename)) return -1; | |
122 | ||
123 | i = 0; | |
124 | while (i < 4096) { | |
125 | dir = (struct iso_directory_record*) &mdir[i]; | |
126 | if (dir->length[0] == 0) { | |
127 | return -1; | |
128 | } | |
1c2c2bfb | 129 | i += (u8)dir->length[0]; |
ef79bbde P |
130 | |
131 | if (dir->flags[0] & 0x2) { // it's a dir | |
132 | if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) { | |
133 | if (filename[dir->name_len[0]] != '\\') continue; | |
134 | ||
135 | filename += dir->name_len[0] + 1; | |
136 | ||
137 | mmssdd(dir->extent, (char *)time); | |
138 | READDIR(ddir); | |
139 | i = 0; | |
140 | mdir = ddir; | |
141 | } | |
142 | } else { | |
143 | if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) { | |
144 | mmssdd(dir->extent, (char *)time); | |
5be6eaeb | 145 | retval = 0; |
ef79bbde P |
146 | break; |
147 | } | |
148 | } | |
149 | } | |
5be6eaeb | 150 | return retval; |
ef79bbde P |
151 | } |
152 | ||
f3a78e7e | 153 | static const unsigned int gpu_ctl_def[] = { |
154 | 0x00000000, 0x01000000, 0x03000000, 0x04000000, | |
155 | 0x05000800, 0x06c60260, 0x0703fc10, 0x08000027, | |
156 | }; | |
157 | ||
158 | static const unsigned int gpu_data_def[] = { | |
159 | 0xe100360b, 0xe2000000, 0xe3000800, 0xe4077e7f, | |
160 | 0xe5001000, 0xe6000000, | |
161 | 0x02000000, 0x00000000, 0x01ff03ff, | |
162 | }; | |
163 | ||
164 | static void fake_bios_gpu_setup(void) | |
165 | { | |
166 | int i; | |
167 | ||
168 | for (i = 0; i < sizeof(gpu_ctl_def) / sizeof(gpu_ctl_def[0]); i++) | |
169 | GPU_writeStatus(gpu_ctl_def[i]); | |
170 | ||
171 | for (i = 0; i < sizeof(gpu_data_def) / sizeof(gpu_data_def[0]); i++) | |
172 | GPU_writeData(gpu_data_def[i]); | |
173 | } | |
174 | ||
ef79bbde P |
175 | int LoadCdrom() { |
176 | EXE_HEADER tmpHead; | |
177 | struct iso_directory_record *dir; | |
178 | u8 time[4], *buf; | |
179 | u8 mdir[4096]; | |
305c8c93 | 180 | char exename[256]; |
ef79bbde | 181 | |
f3a78e7e | 182 | // not the best place to do it, but since BIOS boot logo killer |
183 | // is just below, do it here | |
184 | fake_bios_gpu_setup(); | |
185 | ||
f422f444 | 186 | if (!Config.HLE && !Config.SlowBoot) { |
f3a78e7e | 187 | // skip BIOS logos |
ef79bbde P |
188 | psxRegs.pc = psxRegs.GPR.n.ra; |
189 | return 0; | |
190 | } | |
191 | ||
192 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
193 | ||
194 | READTRACK(); | |
195 | ||
196 | // skip head and sub, and go to the root directory record | |
3e42b115 | 197 | dir = (struct iso_directory_record*) &buf[12+156]; |
ef79bbde P |
198 | |
199 | mmssdd(dir->extent, (char*)time); | |
200 | ||
201 | READDIR(mdir); | |
202 | ||
203 | // Load SYSTEM.CNF and scan for the main executable | |
204 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { | |
205 | // if SYSTEM.CNF is missing, start an existing PSX.EXE | |
206 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; | |
207 | ||
208 | READTRACK(); | |
209 | } | |
210 | else { | |
211 | // read the SYSTEM.CNF | |
212 | READTRACK(); | |
213 | ||
9a9bcd78 | 214 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 215 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 216 | sscanf((char *)buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde | 217 | if (GetCdromFile(mdir, time, exename) == -1) { |
305c8c93 | 218 | char *ptr = strstr((char *)buf + 12, "cdrom:"); |
ef79bbde P |
219 | if (ptr != NULL) { |
220 | ptr += 6; | |
221 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
222 | strncpy(exename, ptr, 255); | |
223 | exename[255] = '\0'; | |
224 | ptr = exename; | |
225 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
226 | *ptr = '\0'; | |
227 | if (GetCdromFile(mdir, time, exename) == -1) | |
228 | return -1; | |
229 | } else | |
230 | return -1; | |
231 | } | |
232 | } | |
233 | ||
234 | // Read the EXE-Header | |
235 | READTRACK(); | |
236 | } | |
237 | ||
238 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); | |
239 | ||
240 | psxRegs.pc = SWAP32(tmpHead.pc0); | |
241 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
3e42b115 | 242 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); |
ef79bbde P |
243 | if (psxRegs.GPR.n.sp == 0) psxRegs.GPR.n.sp = 0x801fff00; |
244 | ||
245 | tmpHead.t_size = SWAP32(tmpHead.t_size); | |
246 | tmpHead.t_addr = SWAP32(tmpHead.t_addr); | |
247 | ||
ebe6ff2b | 248 | psxCpu->Clear(tmpHead.t_addr, tmpHead.t_size / 4); |
952943a7 | 249 | psxCpu->Reset(); |
ebe6ff2b | 250 | |
ef79bbde | 251 | // Read the rest of the main executable |
ebe6ff2b | 252 | while (tmpHead.t_size & ~2047) { |
ef79bbde P |
253 | void *ptr = (void *)PSXM(tmpHead.t_addr); |
254 | ||
255 | incTime(); | |
256 | READTRACK(); | |
257 | ||
b012a437 | 258 | if (ptr != INVALID_PTR) memcpy(ptr, buf+12, 2048); |
ef79bbde P |
259 | |
260 | tmpHead.t_size -= 2048; | |
261 | tmpHead.t_addr += 2048; | |
262 | } | |
263 | ||
264 | return 0; | |
265 | } | |
266 | ||
267 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { | |
268 | struct iso_directory_record *dir; | |
269 | u8 time[4],*buf; | |
305c8c93 | 270 | u8 mdir[4096]; |
271 | char exename[256]; | |
ef79bbde | 272 | u32 size, addr; |
305c8c93 | 273 | void *mem; |
ef79bbde | 274 | |
9a9bcd78 | 275 | sscanf(filename, "cdrom:\\%255s", exename); |
ef79bbde P |
276 | |
277 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
278 | ||
279 | READTRACK(); | |
280 | ||
281 | // skip head and sub, and go to the root directory record | |
3e42b115 | 282 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
283 | |
284 | mmssdd(dir->extent, (char*)time); | |
285 | ||
286 | READDIR(mdir); | |
287 | ||
288 | if (GetCdromFile(mdir, time, exename) == -1) return -1; | |
289 | ||
290 | READTRACK(); | |
291 | ||
292 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
293 | size = head->t_size; | |
294 | addr = head->t_addr; | |
295 | ||
ebe6ff2b | 296 | psxCpu->Clear(addr, size / 4); |
952943a7 | 297 | psxCpu->Reset(); |
ebe6ff2b | 298 | |
299 | while (size & ~2047) { | |
ef79bbde P |
300 | incTime(); |
301 | READTRACK(); | |
302 | ||
305c8c93 | 303 | mem = PSXM(addr); |
b012a437 | 304 | if (mem != INVALID_PTR) |
305c8c93 | 305 | memcpy(mem, buf + 12, 2048); |
ef79bbde P |
306 | |
307 | size -= 2048; | |
308 | addr += 2048; | |
309 | } | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | int CheckCdrom() { | |
315 | struct iso_directory_record *dir; | |
305c8c93 | 316 | unsigned char time[4]; |
317 | char *buf; | |
ef79bbde P |
318 | unsigned char mdir[4096]; |
319 | char exename[256]; | |
e06ee7f4 | 320 | int i, len, c; |
ef79bbde P |
321 | |
322 | FreePPFCache(); | |
323 | ||
324 | time[0] = itob(0); | |
325 | time[1] = itob(2); | |
326 | time[2] = itob(0x10); | |
327 | ||
328 | READTRACK(); | |
329 | ||
e06ee7f4 | 330 | memset(CdromLabel, 0, sizeof(CdromLabel)); |
331 | memset(CdromId, 0, sizeof(CdromId)); | |
332 | memset(exename, 0, sizeof(exename)); | |
ef79bbde P |
333 | |
334 | strncpy(CdromLabel, buf + 52, 32); | |
335 | ||
336 | // skip head and sub, and go to the root directory record | |
3e42b115 | 337 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
338 | |
339 | mmssdd(dir->extent, (char *)time); | |
340 | ||
341 | READDIR(mdir); | |
342 | ||
343 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
344 | READTRACK(); | |
345 | ||
9a9bcd78 | 346 | sscanf(buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 347 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 348 | sscanf(buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde P |
349 | if (GetCdromFile(mdir, time, exename) == -1) { |
350 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
351 | if (ptr != NULL) { | |
352 | ptr += 6; | |
353 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
354 | strncpy(exename, ptr, 255); | |
355 | exename[255] = '\0'; | |
356 | ptr = exename; | |
357 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
358 | *ptr = '\0'; | |
359 | if (GetCdromFile(mdir, time, exename) == -1) | |
360 | return -1; // main executable not found | |
361 | } else | |
362 | return -1; | |
363 | } | |
364 | } | |
1893f408 | 365 | /* Workaround for Wild Arms EU/US which has non-standard string causing incorrect region detection */ |
366 | if (exename[0] == 'E' && exename[1] == 'X' && exename[2] == 'E' && exename[3] == '\\') { | |
367 | size_t offset = 4; | |
368 | size_t i, len = strlen(exename) - offset; | |
369 | for (i = 0; i < len; i++) | |
370 | exename[i] = exename[i + offset]; | |
371 | exename[i] = '\0'; | |
372 | } | |
ef79bbde P |
373 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { |
374 | strcpy(exename, "PSX.EXE;1"); | |
375 | strcpy(CdromId, "SLUS99999"); | |
376 | } else | |
377 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
378 | ||
379 | if (CdromId[0] == '\0') { | |
e06ee7f4 | 380 | len = strlen(exename); |
381 | c = 0; | |
382 | for (i = 0; i < len; ++i) { | |
383 | if (exename[i] == ';' || c >= sizeof(CdromId) - 1) | |
384 | break; | |
385 | if (isalnum(exename[i])) | |
386 | CdromId[c++] = exename[i]; | |
ef79bbde P |
387 | } |
388 | } | |
389 | ||
0e2e3f49 | 390 | if (CdromId[0] == '\0') |
391 | strcpy(CdromId, "SLUS99999"); | |
392 | ||
ef79bbde | 393 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
630b122b | 394 | if ( |
395 | /* Make sure Wild Arms SCUS-94608 is not detected as a PAL game. */ | |
396 | ((CdromId[0] == 's' || CdromId[0] == 'S') && (CdromId[2] == 'e' || CdromId[2] == 'E')) || | |
397 | !strncmp(CdromId, "DTLS3035", 8) || | |
398 | !strncmp(CdromId, "PBPX95001", 9) || // according to redump.org, these PAL | |
399 | !strncmp(CdromId, "PBPX95007", 9) || // discs have a non-standard ID; | |
400 | !strncmp(CdromId, "PBPX95008", 9)) // add more serials if they are discovered. | |
ef79bbde P |
401 | Config.PsxType = PSX_TYPE_PAL; // pal |
402 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
403 | } | |
404 | ||
405 | if (CdromLabel[0] == ' ') { | |
630b122b | 406 | strncpy(CdromLabel, CdromId, 9); |
ef79bbde P |
407 | } |
408 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
409 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
e06ee7f4 | 410 | SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename); |
630b122b | 411 | |
412 | Apply_Hacks_Cdrom(); | |
ef79bbde P |
413 | |
414 | BuildPPFCache(); | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
419 | static int PSXGetFileType(FILE *f) { | |
420 | unsigned long current; | |
421 | u8 mybuf[2048]; | |
422 | EXE_HEADER *exe_hdr; | |
423 | FILHDR *coff_hdr; | |
424 | ||
425 | current = ftell(f); | |
426 | fseek(f, 0L, SEEK_SET); | |
9361a5aa EC |
427 | if (fread(&mybuf, sizeof(mybuf), 1, f) != sizeof(mybuf)) |
428 | goto io_fail; | |
429 | ||
ef79bbde P |
430 | fseek(f, current, SEEK_SET); |
431 | ||
432 | exe_hdr = (EXE_HEADER *)mybuf; | |
433 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
434 | return PSX_EXE; | |
435 | ||
436 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
437 | return CPE_EXE; | |
438 | ||
439 | coff_hdr = (FILHDR *)mybuf; | |
440 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
441 | return COFF_EXE; | |
442 | ||
443 | return INVALID_EXE; | |
9361a5aa EC |
444 | |
445 | io_fail: | |
446 | #ifndef NDEBUG | |
447 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
448 | #endif | |
449 | return INVALID_EXE; | |
ef79bbde P |
450 | } |
451 | ||
96bef96f | 452 | // temporary pandora workaround.. |
453 | // FIXME: remove | |
454 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
455 | { | |
456 | void *tmp; | |
457 | size_t ret = 0; | |
3e42b115 | 458 | |
96bef96f | 459 | tmp = malloc(size * nmemb); |
460 | if (tmp) { | |
461 | ret = fread(tmp, size, nmemb, stream); | |
462 | memcpy(ptr, tmp, size * nmemb); | |
463 | free(tmp); | |
464 | } | |
465 | return ret; | |
466 | } | |
467 | ||
ef79bbde P |
468 | int Load(const char *ExePath) { |
469 | FILE *tmpFile; | |
470 | EXE_HEADER tmpHead; | |
471 | int type; | |
472 | int retval = 0; | |
473 | u8 opcode; | |
474 | u32 section_address, section_size; | |
ebe6ff2b | 475 | void *mem; |
ef79bbde | 476 | |
3e42b115 | 477 | strcpy(CdromId, "SLUS99999"); |
478 | strcpy(CdromLabel, "SLUS_999.99"); | |
ef79bbde P |
479 | |
480 | tmpFile = fopen(ExePath, "rb"); | |
481 | if (tmpFile == NULL) { | |
482 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
483 | retval = -1; | |
484 | } else { | |
485 | type = PSXGetFileType(tmpFile); | |
486 | switch (type) { | |
487 | case PSX_EXE: | |
9361a5aa EC |
488 | if (fread(&tmpHead, sizeof(EXE_HEADER), 1, tmpFile) != sizeof(EXE_HEADER)) |
489 | goto fail_io; | |
ebe6ff2b | 490 | section_address = SWAP32(tmpHead.t_addr); |
491 | section_size = SWAP32(tmpHead.t_size); | |
492 | mem = PSXM(section_address); | |
b012a437 | 493 | if (mem != INVALID_PTR) { |
3e42b115 | 494 | fseek(tmpFile, 0x800, SEEK_SET); |
96bef96f | 495 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 496 | psxCpu->Clear(section_address, section_size / 4); |
497 | } | |
ef79bbde P |
498 | psxRegs.pc = SWAP32(tmpHead.pc0); |
499 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
3e42b115 | 500 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); |
ef79bbde P |
501 | if (psxRegs.GPR.n.sp == 0) |
502 | psxRegs.GPR.n.sp = 0x801fff00; | |
503 | retval = 0; | |
504 | break; | |
505 | case CPE_EXE: | |
506 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
507 | do { | |
9361a5aa EC |
508 | if (fread(&opcode, sizeof(opcode), 1, tmpFile) != sizeof(opcode)) |
509 | goto fail_io; | |
ef79bbde P |
510 | switch (opcode) { |
511 | case 1: /* Section loading */ | |
9361a5aa EC |
512 | if (fread(§ion_address, sizeof(section_address), 1, tmpFile) != sizeof(section_address)) |
513 | goto fail_io; | |
514 | if (fread(§ion_size, sizeof(section_size), 1, tmpFile) != sizeof(section_size)) | |
515 | goto fail_io; | |
ef79bbde P |
516 | section_address = SWAPu32(section_address); |
517 | section_size = SWAPu32(section_size); | |
518 | #ifdef EMU_LOG | |
519 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
520 | #endif | |
ebe6ff2b | 521 | mem = PSXM(section_address); |
b012a437 | 522 | if (mem != INVALID_PTR) { |
96bef96f | 523 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 524 | psxCpu->Clear(section_address, section_size / 4); |
525 | } | |
ef79bbde P |
526 | break; |
527 | case 3: /* register loading (PC only?) */ | |
528 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
9361a5aa EC |
529 | if (fread(&psxRegs.pc, sizeof(psxRegs.pc), 1, tmpFile) != sizeof(psxRegs.pc)) |
530 | goto fail_io; | |
ef79bbde P |
531 | psxRegs.pc = SWAPu32(psxRegs.pc); |
532 | break; | |
533 | case 0: /* End of file */ | |
534 | break; | |
535 | default: | |
536 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
537 | retval = -1; | |
538 | break; | |
539 | } | |
540 | } while (opcode != 0 && retval == 0); | |
541 | break; | |
542 | case COFF_EXE: | |
543 | SysPrintf(_("COFF files not supported.\n")); | |
544 | retval = -1; | |
545 | break; | |
546 | case INVALID_EXE: | |
8f00f96c | 547 | SysPrintf(_("This file does not appear to be a valid PSX EXE file.\n")); |
548 | SysPrintf(_("(did you forget -cdfile ?)\n")); | |
ef79bbde P |
549 | retval = -1; |
550 | break; | |
551 | } | |
552 | } | |
553 | ||
554 | if (retval != 0) { | |
555 | CdromId[0] = '\0'; | |
556 | CdromLabel[0] = '\0'; | |
557 | } | |
558 | ||
9361a5aa | 559 | fclose(tmpFile); |
ef79bbde | 560 | return retval; |
9361a5aa EC |
561 | |
562 | fail_io: | |
563 | #ifndef NDEBUG | |
564 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
565 | #endif | |
566 | fclose(tmpFile); | |
567 | return -1; | |
ef79bbde P |
568 | } |
569 | ||
570 | // STATES | |
571 | ||
496d88d4 | 572 | static void *zlib_open(const char *name, const char *mode) |
573 | { | |
574 | return gzopen(name, mode); | |
575 | } | |
576 | ||
577 | static int zlib_read(void *file, void *buf, u32 len) | |
578 | { | |
579 | return gzread(file, buf, len); | |
580 | } | |
581 | ||
582 | static int zlib_write(void *file, const void *buf, u32 len) | |
583 | { | |
584 | return gzwrite(file, buf, len); | |
585 | } | |
586 | ||
587 | static long zlib_seek(void *file, long offs, int whence) | |
588 | { | |
589 | return gzseek(file, offs, whence); | |
590 | } | |
591 | ||
592 | static void zlib_close(void *file) | |
593 | { | |
594 | gzclose(file); | |
595 | } | |
596 | ||
597 | struct PcsxSaveFuncs SaveFuncs = { | |
598 | zlib_open, zlib_read, zlib_write, zlib_seek, zlib_close | |
599 | }; | |
600 | ||
202b29d4 | 601 | static const char PcsxHeader[32] = "STv4 PCSX v" PCSX_VERSION; |
ef79bbde P |
602 | |
603 | // Savestate Versioning! | |
604 | // If you make changes to the savestate version, please increment the value below. | |
df656dde | 605 | static const u32 SaveVersion = 0x8b410006; |
ef79bbde P |
606 | |
607 | int SaveState(const char *file) { | |
496d88d4 | 608 | void *f; |
ef79bbde P |
609 | GPUFreeze_t *gpufP; |
610 | SPUFreeze_t *spufP; | |
611 | int Size; | |
612 | unsigned char *pMem; | |
613 | ||
496d88d4 | 614 | f = SaveFuncs.open(file, "wb"); |
ef79bbde P |
615 | if (f == NULL) return -1; |
616 | ||
03f55e6b | 617 | new_dyna_before_save(); |
52082bc1 | 618 | |
02dbc869 | 619 | if (drc_is_lightrec() && Config.Cpu != CPU_INTERPRETER) |
6962f770 PC |
620 | lightrec_plugin_prepare_save_state(); |
621 | ||
496d88d4 | 622 | SaveFuncs.write(f, (void *)PcsxHeader, 32); |
623 | SaveFuncs.write(f, (void *)&SaveVersion, sizeof(u32)); | |
624 | SaveFuncs.write(f, (void *)&Config.HLE, sizeof(boolean)); | |
ef79bbde P |
625 | |
626 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
627 | if (pMem == NULL) return -1; | |
628 | GPU_getScreenPic(pMem); | |
496d88d4 | 629 | SaveFuncs.write(f, pMem, 128 * 96 * 3); |
ef79bbde P |
630 | free(pMem); |
631 | ||
632 | if (Config.HLE) | |
633 | psxBiosFreeze(1); | |
634 | ||
496d88d4 | 635 | SaveFuncs.write(f, psxM, 0x00200000); |
636 | SaveFuncs.write(f, psxR, 0x00080000); | |
637 | SaveFuncs.write(f, psxH, 0x00010000); | |
630b122b | 638 | // only partial save of psxRegisters to maintain savestate compat |
639 | SaveFuncs.write(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); | |
ef79bbde P |
640 | |
641 | // gpu | |
642 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
643 | gpufP->ulFreezeVersion = 1; | |
644 | GPU_freeze(1, gpufP); | |
496d88d4 | 645 | SaveFuncs.write(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
646 | free(gpufP); |
647 | ||
648 | // spu | |
649 | spufP = (SPUFreeze_t *) malloc(16); | |
650adfd2 | 650 | SPU_freeze(2, spufP, psxRegs.cycle); |
496d88d4 | 651 | Size = spufP->Size; SaveFuncs.write(f, &Size, 4); |
ef79bbde P |
652 | free(spufP); |
653 | spufP = (SPUFreeze_t *) malloc(Size); | |
650adfd2 | 654 | SPU_freeze(1, spufP, psxRegs.cycle); |
496d88d4 | 655 | SaveFuncs.write(f, spufP, Size); |
ef79bbde P |
656 | free(spufP); |
657 | ||
658 | sioFreeze(f, 1); | |
659 | cdrFreeze(f, 1); | |
660 | psxHwFreeze(f, 1); | |
661 | psxRcntFreeze(f, 1); | |
662 | mdecFreeze(f, 1); | |
03f55e6b | 663 | new_dyna_freeze(f, 1); |
ef79bbde | 664 | |
496d88d4 | 665 | SaveFuncs.close(f); |
ef79bbde | 666 | |
5b8c000f | 667 | new_dyna_after_save(); |
668 | ||
ef79bbde P |
669 | return 0; |
670 | } | |
671 | ||
672 | int LoadState(const char *file) { | |
496d88d4 | 673 | void *f; |
ef79bbde P |
674 | GPUFreeze_t *gpufP; |
675 | SPUFreeze_t *spufP; | |
676 | int Size; | |
677 | char header[32]; | |
678 | u32 version; | |
679 | boolean hle; | |
680 | ||
496d88d4 | 681 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
682 | if (f == NULL) return -1; |
683 | ||
496d88d4 | 684 | SaveFuncs.read(f, header, sizeof(header)); |
685 | SaveFuncs.read(f, &version, sizeof(u32)); | |
686 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 687 | |
33f56da1 | 688 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
496d88d4 | 689 | SaveFuncs.close(f); |
ef79bbde P |
690 | return -1; |
691 | } | |
33f56da1 | 692 | Config.HLE = hle; |
693 | ||
694 | if (Config.HLE) | |
695 | psxBiosInit(); | |
ef79bbde | 696 | |
6962f770 PC |
697 | if (!drc_is_lightrec() || Config.Cpu == CPU_INTERPRETER) |
698 | psxCpu->Reset(); | |
496d88d4 | 699 | SaveFuncs.seek(f, 128 * 96 * 3, SEEK_CUR); |
ef79bbde | 700 | |
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 | |
6962f770 PC |
707 | if (drc_is_lightrec() && Config.Cpu != CPU_INTERPRETER) |
708 | lightrec_plugin_prepare_load_state(); | |
709 | ||
ef79bbde P |
710 | if (Config.HLE) |
711 | psxBiosFreeze(0); | |
712 | ||
713 | // gpu | |
714 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
496d88d4 | 715 | SaveFuncs.read(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
716 | GPU_freeze(0, gpufP); |
717 | free(gpufP); | |
ddbaf678 | 718 | if (HW_GPU_STATUS == 0) |
719 | HW_GPU_STATUS = GPU_readStatus(); | |
ef79bbde P |
720 | |
721 | // spu | |
496d88d4 | 722 | SaveFuncs.read(f, &Size, 4); |
ef79bbde | 723 | spufP = (SPUFreeze_t *)malloc(Size); |
496d88d4 | 724 | SaveFuncs.read(f, spufP, Size); |
650adfd2 | 725 | SPU_freeze(0, spufP, psxRegs.cycle); |
ef79bbde P |
726 | free(spufP); |
727 | ||
728 | sioFreeze(f, 0); | |
729 | cdrFreeze(f, 0); | |
730 | psxHwFreeze(f, 0); | |
731 | psxRcntFreeze(f, 0); | |
732 | mdecFreeze(f, 0); | |
03f55e6b | 733 | new_dyna_freeze(f, 0); |
ef79bbde | 734 | |
496d88d4 | 735 | SaveFuncs.close(f); |
ef79bbde P |
736 | |
737 | return 0; | |
738 | } | |
739 | ||
740 | int CheckState(const char *file) { | |
496d88d4 | 741 | void *f; |
ef79bbde P |
742 | char header[32]; |
743 | u32 version; | |
744 | boolean hle; | |
745 | ||
496d88d4 | 746 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
747 | if (f == NULL) return -1; |
748 | ||
496d88d4 | 749 | SaveFuncs.read(f, header, sizeof(header)); |
750 | SaveFuncs.read(f, &version, sizeof(u32)); | |
751 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 752 | |
496d88d4 | 753 | SaveFuncs.close(f); |
ef79bbde | 754 | |
33f56da1 | 755 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
ef79bbde P |
756 | return -1; |
757 | ||
758 | return 0; | |
759 | } | |
760 | ||
761 | // NET Function Helpers | |
762 | ||
763 | int SendPcsxInfo() { | |
764 | if (NET_recvData == NULL || NET_sendData == NULL) | |
765 | return 0; | |
766 | ||
767 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
768 | NET_sendData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
769 | NET_sendData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
770 | NET_sendData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
771 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
772 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
773 | ||
774 | return 0; | |
775 | } | |
776 | ||
777 | int RecvPcsxInfo() { | |
778 | int tmp; | |
779 | ||
780 | if (NET_recvData == NULL || NET_sendData == NULL) | |
781 | return 0; | |
782 | ||
783 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
784 | NET_recvData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
785 | NET_recvData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
786 | NET_recvData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
787 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
788 | ||
789 | SysUpdate(); | |
790 | ||
791 | tmp = Config.Cpu; | |
792 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
793 | if (tmp != Config.Cpu) { | |
794 | psxCpu->Shutdown(); | |
630b122b | 795 | #ifndef DRC_DISABLE |
ef79bbde P |
796 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
797 | else psxCpu = &psxRec; | |
798 | #else | |
799 | psxCpu = &psxInt; | |
800 | #endif | |
801 | if (psxCpu->Init() == -1) { | |
802 | SysClose(); return -1; | |
803 | } | |
804 | psxCpu->Reset(); | |
805 | } | |
806 | ||
807 | return 0; | |
808 | } | |
809 | ||
810 | // remove the leading and trailing spaces in a string | |
811 | void trim(char *str) { | |
812 | int pos = 0; | |
813 | char *dest = str; | |
814 | ||
815 | // skip leading blanks | |
816 | while (str[pos] <= ' ' && str[pos] > 0) | |
817 | pos++; | |
818 | ||
819 | while (str[pos]) { | |
820 | *(dest++) = str[pos]; | |
821 | pos++; | |
822 | } | |
823 | ||
824 | *(dest--) = '\0'; // store the null | |
825 | ||
826 | // remove trailing blanks | |
827 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
828 | *(dest--) = '\0'; | |
829 | } | |
830 | ||
831 | // lookup table for crc calculation | |
832 | static unsigned short crctab[256] = { | |
833 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
834 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
835 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
836 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
837 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
838 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
839 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
840 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
841 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
842 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
843 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
844 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
845 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
846 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
847 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
848 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
849 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
850 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
851 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
852 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
853 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
854 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
855 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
856 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
857 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
858 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
859 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
860 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
861 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
862 | }; | |
863 | ||
864 | u16 calcCrc(u8 *d, int len) { | |
865 | u16 crc = 0; | |
866 | int i; | |
867 | ||
868 | for (i = 0; i < len; i++) { | |
869 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
870 | } | |
871 | ||
872 | return ~crc; | |
873 | } |