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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 | ||
af0df011 | 59 | void mmssdd( char *b, char *p ) |
ef79bbde P |
60 | { |
61 | int m, s, d; | |
af0df011 | 62 | int block = SWAP32(*((uint32_t*) b)); |
ef79bbde P |
63 | |
64 | block += 150; | |
65 | m = block / 4500; // minutes | |
66 | block = block - m * 4500; // minutes rest | |
67 | s = block / 75; // seconds | |
68 | d = block - s * 75; // seconds rest | |
69 | ||
70 | m = ((m / 10) << 4) | m % 10; | |
71 | s = ((s / 10) << 4) | s % 10; | |
3e42b115 | 72 | d = ((d / 10) << 4) | d % 10; |
ef79bbde P |
73 | |
74 | p[0] = m; | |
75 | p[1] = s; | |
76 | p[2] = d; | |
77 | } | |
78 | ||
79 | #define incTime() \ | |
80 | time[0] = btoi(time[0]); time[1] = btoi(time[1]); time[2] = btoi(time[2]); \ | |
81 | time[2]++; \ | |
82 | if(time[2] == 75) { \ | |
83 | time[2] = 0; \ | |
84 | time[1]++; \ | |
85 | if (time[1] == 60) { \ | |
86 | time[1] = 0; \ | |
87 | time[0]++; \ | |
88 | } \ | |
89 | } \ | |
90 | time[0] = itob(time[0]); time[1] = itob(time[1]); time[2] = itob(time[2]); | |
91 | ||
92 | #define READTRACK() \ | |
93 | if (CDR_readTrack(time) == -1) return -1; \ | |
305c8c93 | 94 | buf = (void *)CDR_getBuffer(); \ |
95 | if (buf == NULL) return -1; \ | |
96 | else CheckPPFCache((u8 *)buf, time[0], time[1], time[2]); | |
ef79bbde P |
97 | |
98 | #define READDIR(_dir) \ | |
99 | READTRACK(); \ | |
100 | memcpy(_dir, buf + 12, 2048); \ | |
101 | \ | |
102 | incTime(); \ | |
103 | READTRACK(); \ | |
104 | memcpy(_dir + 2048, buf + 12, 2048); | |
105 | ||
305c8c93 | 106 | int GetCdromFile(u8 *mdir, u8 *time, char *filename) { |
ef79bbde | 107 | struct iso_directory_record *dir; |
5be6eaeb | 108 | int retval = -1; |
305c8c93 | 109 | u8 ddir[4096]; |
ef79bbde P |
110 | u8 *buf; |
111 | int i; | |
112 | ||
113 | // only try to scan if a filename is given | |
114 | if (!strlen(filename)) return -1; | |
115 | ||
116 | i = 0; | |
117 | while (i < 4096) { | |
118 | dir = (struct iso_directory_record*) &mdir[i]; | |
119 | if (dir->length[0] == 0) { | |
120 | return -1; | |
121 | } | |
1c2c2bfb | 122 | i += (u8)dir->length[0]; |
ef79bbde P |
123 | |
124 | if (dir->flags[0] & 0x2) { // it's a dir | |
125 | if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) { | |
126 | if (filename[dir->name_len[0]] != '\\') continue; | |
127 | ||
128 | filename += dir->name_len[0] + 1; | |
129 | ||
130 | mmssdd(dir->extent, (char *)time); | |
131 | READDIR(ddir); | |
132 | i = 0; | |
133 | mdir = ddir; | |
134 | } | |
135 | } else { | |
136 | if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) { | |
137 | mmssdd(dir->extent, (char *)time); | |
5be6eaeb | 138 | retval = 0; |
ef79bbde P |
139 | break; |
140 | } | |
141 | } | |
142 | } | |
5be6eaeb | 143 | return retval; |
ef79bbde P |
144 | } |
145 | ||
f3a78e7e | 146 | static const unsigned int gpu_ctl_def[] = { |
147 | 0x00000000, 0x01000000, 0x03000000, 0x04000000, | |
148 | 0x05000800, 0x06c60260, 0x0703fc10, 0x08000027, | |
149 | }; | |
150 | ||
151 | static const unsigned int gpu_data_def[] = { | |
152 | 0xe100360b, 0xe2000000, 0xe3000800, 0xe4077e7f, | |
153 | 0xe5001000, 0xe6000000, | |
154 | 0x02000000, 0x00000000, 0x01ff03ff, | |
155 | }; | |
156 | ||
157 | static void fake_bios_gpu_setup(void) | |
158 | { | |
159 | int i; | |
160 | ||
161 | for (i = 0; i < sizeof(gpu_ctl_def) / sizeof(gpu_ctl_def[0]); i++) | |
162 | GPU_writeStatus(gpu_ctl_def[i]); | |
163 | ||
164 | for (i = 0; i < sizeof(gpu_data_def) / sizeof(gpu_data_def[0]); i++) | |
165 | GPU_writeData(gpu_data_def[i]); | |
166 | } | |
167 | ||
ef79bbde P |
168 | int LoadCdrom() { |
169 | EXE_HEADER tmpHead; | |
170 | struct iso_directory_record *dir; | |
171 | u8 time[4], *buf; | |
172 | u8 mdir[4096]; | |
305c8c93 | 173 | char exename[256]; |
ef79bbde | 174 | |
f3a78e7e | 175 | // not the best place to do it, but since BIOS boot logo killer |
176 | // is just below, do it here | |
177 | fake_bios_gpu_setup(); | |
178 | ||
f422f444 | 179 | if (!Config.HLE && !Config.SlowBoot) { |
f3a78e7e | 180 | // skip BIOS logos |
ef79bbde P |
181 | psxRegs.pc = psxRegs.GPR.n.ra; |
182 | return 0; | |
183 | } | |
184 | ||
185 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
186 | ||
187 | READTRACK(); | |
188 | ||
189 | // skip head and sub, and go to the root directory record | |
3e42b115 | 190 | dir = (struct iso_directory_record*) &buf[12+156]; |
ef79bbde P |
191 | |
192 | mmssdd(dir->extent, (char*)time); | |
193 | ||
194 | READDIR(mdir); | |
195 | ||
196 | // Load SYSTEM.CNF and scan for the main executable | |
197 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { | |
198 | // if SYSTEM.CNF is missing, start an existing PSX.EXE | |
199 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; | |
200 | ||
201 | READTRACK(); | |
202 | } | |
203 | else { | |
204 | // read the SYSTEM.CNF | |
205 | READTRACK(); | |
206 | ||
9a9bcd78 | 207 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 208 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 209 | sscanf((char *)buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde | 210 | if (GetCdromFile(mdir, time, exename) == -1) { |
305c8c93 | 211 | char *ptr = strstr((char *)buf + 12, "cdrom:"); |
ef79bbde P |
212 | if (ptr != NULL) { |
213 | ptr += 6; | |
214 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
215 | strncpy(exename, ptr, 255); | |
216 | exename[255] = '\0'; | |
217 | ptr = exename; | |
218 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
219 | *ptr = '\0'; | |
220 | if (GetCdromFile(mdir, time, exename) == -1) | |
221 | return -1; | |
222 | } else | |
223 | return -1; | |
224 | } | |
225 | } | |
226 | ||
227 | // Read the EXE-Header | |
228 | READTRACK(); | |
229 | } | |
230 | ||
231 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); | |
232 | ||
233 | psxRegs.pc = SWAP32(tmpHead.pc0); | |
234 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
3e42b115 | 235 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); |
ef79bbde P |
236 | if (psxRegs.GPR.n.sp == 0) psxRegs.GPR.n.sp = 0x801fff00; |
237 | ||
238 | tmpHead.t_size = SWAP32(tmpHead.t_size); | |
239 | tmpHead.t_addr = SWAP32(tmpHead.t_addr); | |
240 | ||
ebe6ff2b | 241 | psxCpu->Clear(tmpHead.t_addr, tmpHead.t_size / 4); |
952943a7 | 242 | psxCpu->Reset(); |
ebe6ff2b | 243 | |
ef79bbde | 244 | // Read the rest of the main executable |
ebe6ff2b | 245 | while (tmpHead.t_size & ~2047) { |
ef79bbde P |
246 | void *ptr = (void *)PSXM(tmpHead.t_addr); |
247 | ||
248 | incTime(); | |
249 | READTRACK(); | |
250 | ||
b012a437 | 251 | if (ptr != INVALID_PTR) memcpy(ptr, buf+12, 2048); |
ef79bbde P |
252 | |
253 | tmpHead.t_size -= 2048; | |
254 | tmpHead.t_addr += 2048; | |
255 | } | |
256 | ||
257 | return 0; | |
258 | } | |
259 | ||
260 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { | |
261 | struct iso_directory_record *dir; | |
262 | u8 time[4],*buf; | |
305c8c93 | 263 | u8 mdir[4096]; |
264 | char exename[256]; | |
ef79bbde | 265 | u32 size, addr; |
305c8c93 | 266 | void *mem; |
ef79bbde | 267 | |
9a9bcd78 | 268 | sscanf(filename, "cdrom:\\%255s", exename); |
ef79bbde P |
269 | |
270 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
271 | ||
272 | READTRACK(); | |
273 | ||
274 | // skip head and sub, and go to the root directory record | |
3e42b115 | 275 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
276 | |
277 | mmssdd(dir->extent, (char*)time); | |
278 | ||
279 | READDIR(mdir); | |
280 | ||
281 | if (GetCdromFile(mdir, time, exename) == -1) return -1; | |
282 | ||
283 | READTRACK(); | |
284 | ||
285 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
286 | size = head->t_size; | |
287 | addr = head->t_addr; | |
288 | ||
ebe6ff2b | 289 | psxCpu->Clear(addr, size / 4); |
952943a7 | 290 | psxCpu->Reset(); |
ebe6ff2b | 291 | |
292 | while (size & ~2047) { | |
ef79bbde P |
293 | incTime(); |
294 | READTRACK(); | |
295 | ||
305c8c93 | 296 | mem = PSXM(addr); |
b012a437 | 297 | if (mem != INVALID_PTR) |
305c8c93 | 298 | memcpy(mem, buf + 12, 2048); |
ef79bbde P |
299 | |
300 | size -= 2048; | |
301 | addr += 2048; | |
302 | } | |
303 | ||
304 | return 0; | |
305 | } | |
306 | ||
307 | int CheckCdrom() { | |
308 | struct iso_directory_record *dir; | |
305c8c93 | 309 | unsigned char time[4]; |
310 | char *buf; | |
ef79bbde P |
311 | unsigned char mdir[4096]; |
312 | char exename[256]; | |
e06ee7f4 | 313 | int i, len, c; |
ef79bbde P |
314 | |
315 | FreePPFCache(); | |
316 | ||
317 | time[0] = itob(0); | |
318 | time[1] = itob(2); | |
319 | time[2] = itob(0x10); | |
320 | ||
321 | READTRACK(); | |
322 | ||
e06ee7f4 | 323 | memset(CdromLabel, 0, sizeof(CdromLabel)); |
324 | memset(CdromId, 0, sizeof(CdromId)); | |
325 | memset(exename, 0, sizeof(exename)); | |
ef79bbde P |
326 | |
327 | strncpy(CdromLabel, buf + 52, 32); | |
328 | ||
329 | // skip head and sub, and go to the root directory record | |
3e42b115 | 330 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
331 | |
332 | mmssdd(dir->extent, (char *)time); | |
333 | ||
334 | READDIR(mdir); | |
335 | ||
336 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
337 | READTRACK(); | |
338 | ||
9a9bcd78 | 339 | sscanf(buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 340 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 341 | sscanf(buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde P |
342 | if (GetCdromFile(mdir, time, exename) == -1) { |
343 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
344 | if (ptr != NULL) { | |
345 | ptr += 6; | |
346 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
347 | strncpy(exename, ptr, 255); | |
348 | exename[255] = '\0'; | |
349 | ptr = exename; | |
350 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
351 | *ptr = '\0'; | |
352 | if (GetCdromFile(mdir, time, exename) == -1) | |
353 | return -1; // main executable not found | |
354 | } else | |
355 | return -1; | |
356 | } | |
357 | } | |
1893f408 | 358 | /* Workaround for Wild Arms EU/US which has non-standard string causing incorrect region detection */ |
359 | if (exename[0] == 'E' && exename[1] == 'X' && exename[2] == 'E' && exename[3] == '\\') { | |
360 | size_t offset = 4; | |
361 | size_t i, len = strlen(exename) - offset; | |
362 | for (i = 0; i < len; i++) | |
363 | exename[i] = exename[i + offset]; | |
364 | exename[i] = '\0'; | |
365 | } | |
ef79bbde P |
366 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { |
367 | strcpy(exename, "PSX.EXE;1"); | |
368 | strcpy(CdromId, "SLUS99999"); | |
369 | } else | |
370 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
371 | ||
372 | if (CdromId[0] == '\0') { | |
e06ee7f4 | 373 | len = strlen(exename); |
374 | c = 0; | |
375 | for (i = 0; i < len; ++i) { | |
376 | if (exename[i] == ';' || c >= sizeof(CdromId) - 1) | |
377 | break; | |
378 | if (isalnum(exename[i])) | |
379 | CdromId[c++] = exename[i]; | |
ef79bbde P |
380 | } |
381 | } | |
382 | ||
0e2e3f49 | 383 | if (CdromId[0] == '\0') |
384 | strcpy(CdromId, "SLUS99999"); | |
385 | ||
ef79bbde | 386 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
630b122b | 387 | if ( |
388 | /* Make sure Wild Arms SCUS-94608 is not detected as a PAL game. */ | |
389 | ((CdromId[0] == 's' || CdromId[0] == 'S') && (CdromId[2] == 'e' || CdromId[2] == 'E')) || | |
390 | !strncmp(CdromId, "DTLS3035", 8) || | |
391 | !strncmp(CdromId, "PBPX95001", 9) || // according to redump.org, these PAL | |
392 | !strncmp(CdromId, "PBPX95007", 9) || // discs have a non-standard ID; | |
393 | !strncmp(CdromId, "PBPX95008", 9)) // add more serials if they are discovered. | |
ef79bbde P |
394 | Config.PsxType = PSX_TYPE_PAL; // pal |
395 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
396 | } | |
397 | ||
398 | if (CdromLabel[0] == ' ') { | |
630b122b | 399 | strncpy(CdromLabel, CdromId, 9); |
ef79bbde P |
400 | } |
401 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
402 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
e06ee7f4 | 403 | SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename); |
630b122b | 404 | |
405 | Apply_Hacks_Cdrom(); | |
ef79bbde P |
406 | |
407 | BuildPPFCache(); | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
412 | static int PSXGetFileType(FILE *f) { | |
413 | unsigned long current; | |
414 | u8 mybuf[2048]; | |
415 | EXE_HEADER *exe_hdr; | |
416 | FILHDR *coff_hdr; | |
417 | ||
418 | current = ftell(f); | |
419 | fseek(f, 0L, SEEK_SET); | |
9361a5aa EC |
420 | if (fread(&mybuf, sizeof(mybuf), 1, f) != sizeof(mybuf)) |
421 | goto io_fail; | |
422 | ||
ef79bbde P |
423 | fseek(f, current, SEEK_SET); |
424 | ||
425 | exe_hdr = (EXE_HEADER *)mybuf; | |
426 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
427 | return PSX_EXE; | |
428 | ||
429 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
430 | return CPE_EXE; | |
431 | ||
432 | coff_hdr = (FILHDR *)mybuf; | |
433 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
434 | return COFF_EXE; | |
435 | ||
436 | return INVALID_EXE; | |
9361a5aa EC |
437 | |
438 | io_fail: | |
439 | #ifndef NDEBUG | |
440 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
441 | #endif | |
442 | return INVALID_EXE; | |
ef79bbde P |
443 | } |
444 | ||
96bef96f | 445 | // temporary pandora workaround.. |
446 | // FIXME: remove | |
447 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
448 | { | |
449 | void *tmp; | |
450 | size_t ret = 0; | |
3e42b115 | 451 | |
96bef96f | 452 | tmp = malloc(size * nmemb); |
453 | if (tmp) { | |
454 | ret = fread(tmp, size, nmemb, stream); | |
455 | memcpy(ptr, tmp, size * nmemb); | |
456 | free(tmp); | |
457 | } | |
458 | return ret; | |
459 | } | |
460 | ||
ef79bbde P |
461 | int Load(const char *ExePath) { |
462 | FILE *tmpFile; | |
463 | EXE_HEADER tmpHead; | |
464 | int type; | |
465 | int retval = 0; | |
466 | u8 opcode; | |
467 | u32 section_address, section_size; | |
ebe6ff2b | 468 | void *mem; |
ef79bbde | 469 | |
3e42b115 | 470 | strcpy(CdromId, "SLUS99999"); |
471 | strcpy(CdromLabel, "SLUS_999.99"); | |
ef79bbde P |
472 | |
473 | tmpFile = fopen(ExePath, "rb"); | |
474 | if (tmpFile == NULL) { | |
475 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
476 | retval = -1; | |
477 | } else { | |
478 | type = PSXGetFileType(tmpFile); | |
479 | switch (type) { | |
480 | case PSX_EXE: | |
9361a5aa EC |
481 | if (fread(&tmpHead, sizeof(EXE_HEADER), 1, tmpFile) != sizeof(EXE_HEADER)) |
482 | goto fail_io; | |
ebe6ff2b | 483 | section_address = SWAP32(tmpHead.t_addr); |
484 | section_size = SWAP32(tmpHead.t_size); | |
485 | mem = PSXM(section_address); | |
b012a437 | 486 | if (mem != INVALID_PTR) { |
3e42b115 | 487 | fseek(tmpFile, 0x800, SEEK_SET); |
96bef96f | 488 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 489 | psxCpu->Clear(section_address, section_size / 4); |
490 | } | |
ef79bbde P |
491 | psxRegs.pc = SWAP32(tmpHead.pc0); |
492 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
3e42b115 | 493 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); |
ef79bbde P |
494 | if (psxRegs.GPR.n.sp == 0) |
495 | psxRegs.GPR.n.sp = 0x801fff00; | |
496 | retval = 0; | |
497 | break; | |
498 | case CPE_EXE: | |
499 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
500 | do { | |
9361a5aa EC |
501 | if (fread(&opcode, sizeof(opcode), 1, tmpFile) != sizeof(opcode)) |
502 | goto fail_io; | |
ef79bbde P |
503 | switch (opcode) { |
504 | case 1: /* Section loading */ | |
9361a5aa EC |
505 | if (fread(§ion_address, sizeof(section_address), 1, tmpFile) != sizeof(section_address)) |
506 | goto fail_io; | |
507 | if (fread(§ion_size, sizeof(section_size), 1, tmpFile) != sizeof(section_size)) | |
508 | goto fail_io; | |
ef79bbde P |
509 | section_address = SWAPu32(section_address); |
510 | section_size = SWAPu32(section_size); | |
511 | #ifdef EMU_LOG | |
512 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
513 | #endif | |
ebe6ff2b | 514 | mem = PSXM(section_address); |
b012a437 | 515 | if (mem != INVALID_PTR) { |
96bef96f | 516 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 517 | psxCpu->Clear(section_address, section_size / 4); |
518 | } | |
ef79bbde P |
519 | break; |
520 | case 3: /* register loading (PC only?) */ | |
521 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
9361a5aa EC |
522 | if (fread(&psxRegs.pc, sizeof(psxRegs.pc), 1, tmpFile) != sizeof(psxRegs.pc)) |
523 | goto fail_io; | |
ef79bbde P |
524 | psxRegs.pc = SWAPu32(psxRegs.pc); |
525 | break; | |
526 | case 0: /* End of file */ | |
527 | break; | |
528 | default: | |
529 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
530 | retval = -1; | |
531 | break; | |
532 | } | |
533 | } while (opcode != 0 && retval == 0); | |
534 | break; | |
535 | case COFF_EXE: | |
536 | SysPrintf(_("COFF files not supported.\n")); | |
537 | retval = -1; | |
538 | break; | |
539 | case INVALID_EXE: | |
8f00f96c | 540 | SysPrintf(_("This file does not appear to be a valid PSX EXE file.\n")); |
541 | SysPrintf(_("(did you forget -cdfile ?)\n")); | |
ef79bbde P |
542 | retval = -1; |
543 | break; | |
544 | } | |
545 | } | |
546 | ||
547 | if (retval != 0) { | |
548 | CdromId[0] = '\0'; | |
549 | CdromLabel[0] = '\0'; | |
550 | } | |
551 | ||
9361a5aa | 552 | fclose(tmpFile); |
ef79bbde | 553 | return retval; |
9361a5aa EC |
554 | |
555 | fail_io: | |
556 | #ifndef NDEBUG | |
557 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
558 | #endif | |
559 | fclose(tmpFile); | |
560 | return -1; | |
ef79bbde P |
561 | } |
562 | ||
563 | // STATES | |
564 | ||
496d88d4 | 565 | static void *zlib_open(const char *name, const char *mode) |
566 | { | |
567 | return gzopen(name, mode); | |
568 | } | |
569 | ||
570 | static int zlib_read(void *file, void *buf, u32 len) | |
571 | { | |
572 | return gzread(file, buf, len); | |
573 | } | |
574 | ||
575 | static int zlib_write(void *file, const void *buf, u32 len) | |
576 | { | |
577 | return gzwrite(file, buf, len); | |
578 | } | |
579 | ||
580 | static long zlib_seek(void *file, long offs, int whence) | |
581 | { | |
582 | return gzseek(file, offs, whence); | |
583 | } | |
584 | ||
585 | static void zlib_close(void *file) | |
586 | { | |
587 | gzclose(file); | |
588 | } | |
589 | ||
590 | struct PcsxSaveFuncs SaveFuncs = { | |
591 | zlib_open, zlib_read, zlib_write, zlib_seek, zlib_close | |
592 | }; | |
593 | ||
202b29d4 | 594 | static const char PcsxHeader[32] = "STv4 PCSX v" PCSX_VERSION; |
ef79bbde P |
595 | |
596 | // Savestate Versioning! | |
597 | // If you make changes to the savestate version, please increment the value below. | |
df656dde | 598 | static const u32 SaveVersion = 0x8b410006; |
ef79bbde P |
599 | |
600 | int SaveState(const char *file) { | |
496d88d4 | 601 | void *f; |
ef79bbde P |
602 | GPUFreeze_t *gpufP; |
603 | SPUFreeze_t *spufP; | |
604 | int Size; | |
605 | unsigned char *pMem; | |
606 | ||
496d88d4 | 607 | f = SaveFuncs.open(file, "wb"); |
ef79bbde P |
608 | if (f == NULL) return -1; |
609 | ||
03f55e6b | 610 | new_dyna_before_save(); |
52082bc1 | 611 | |
02dbc869 | 612 | if (drc_is_lightrec() && Config.Cpu != CPU_INTERPRETER) |
6962f770 PC |
613 | lightrec_plugin_prepare_save_state(); |
614 | ||
496d88d4 | 615 | SaveFuncs.write(f, (void *)PcsxHeader, 32); |
616 | SaveFuncs.write(f, (void *)&SaveVersion, sizeof(u32)); | |
617 | SaveFuncs.write(f, (void *)&Config.HLE, sizeof(boolean)); | |
ef79bbde P |
618 | |
619 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
620 | if (pMem == NULL) return -1; | |
621 | GPU_getScreenPic(pMem); | |
496d88d4 | 622 | SaveFuncs.write(f, pMem, 128 * 96 * 3); |
ef79bbde P |
623 | free(pMem); |
624 | ||
625 | if (Config.HLE) | |
626 | psxBiosFreeze(1); | |
627 | ||
496d88d4 | 628 | SaveFuncs.write(f, psxM, 0x00200000); |
629 | SaveFuncs.write(f, psxR, 0x00080000); | |
630 | SaveFuncs.write(f, psxH, 0x00010000); | |
630b122b | 631 | // only partial save of psxRegisters to maintain savestate compat |
632 | SaveFuncs.write(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); | |
ef79bbde P |
633 | |
634 | // gpu | |
635 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
636 | gpufP->ulFreezeVersion = 1; | |
637 | GPU_freeze(1, gpufP); | |
496d88d4 | 638 | SaveFuncs.write(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
639 | free(gpufP); |
640 | ||
641 | // spu | |
642 | spufP = (SPUFreeze_t *) malloc(16); | |
650adfd2 | 643 | SPU_freeze(2, spufP, psxRegs.cycle); |
496d88d4 | 644 | Size = spufP->Size; SaveFuncs.write(f, &Size, 4); |
ef79bbde P |
645 | free(spufP); |
646 | spufP = (SPUFreeze_t *) malloc(Size); | |
650adfd2 | 647 | SPU_freeze(1, spufP, psxRegs.cycle); |
496d88d4 | 648 | SaveFuncs.write(f, spufP, Size); |
ef79bbde P |
649 | free(spufP); |
650 | ||
651 | sioFreeze(f, 1); | |
652 | cdrFreeze(f, 1); | |
653 | psxHwFreeze(f, 1); | |
654 | psxRcntFreeze(f, 1); | |
655 | mdecFreeze(f, 1); | |
03f55e6b | 656 | new_dyna_freeze(f, 1); |
ef79bbde | 657 | |
496d88d4 | 658 | SaveFuncs.close(f); |
ef79bbde | 659 | |
5b8c000f | 660 | new_dyna_after_save(); |
661 | ||
ef79bbde P |
662 | return 0; |
663 | } | |
664 | ||
665 | int LoadState(const char *file) { | |
496d88d4 | 666 | void *f; |
ef79bbde P |
667 | GPUFreeze_t *gpufP; |
668 | SPUFreeze_t *spufP; | |
669 | int Size; | |
670 | char header[32]; | |
671 | u32 version; | |
672 | boolean hle; | |
673 | ||
496d88d4 | 674 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
675 | if (f == NULL) return -1; |
676 | ||
496d88d4 | 677 | SaveFuncs.read(f, header, sizeof(header)); |
678 | SaveFuncs.read(f, &version, sizeof(u32)); | |
679 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 680 | |
33f56da1 | 681 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
496d88d4 | 682 | SaveFuncs.close(f); |
ef79bbde P |
683 | return -1; |
684 | } | |
33f56da1 | 685 | Config.HLE = hle; |
686 | ||
687 | if (Config.HLE) | |
688 | psxBiosInit(); | |
ef79bbde | 689 | |
6962f770 PC |
690 | if (!drc_is_lightrec() || Config.Cpu == CPU_INTERPRETER) |
691 | psxCpu->Reset(); | |
496d88d4 | 692 | SaveFuncs.seek(f, 128 * 96 * 3, SEEK_CUR); |
ef79bbde | 693 | |
496d88d4 | 694 | SaveFuncs.read(f, psxM, 0x00200000); |
695 | SaveFuncs.read(f, psxR, 0x00080000); | |
696 | SaveFuncs.read(f, psxH, 0x00010000); | |
630b122b | 697 | SaveFuncs.read(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); |
698 | psxRegs.gteBusyCycle = psxRegs.cycle; | |
ef79bbde | 699 | |
6962f770 PC |
700 | if (drc_is_lightrec() && Config.Cpu != CPU_INTERPRETER) |
701 | lightrec_plugin_prepare_load_state(); | |
702 | ||
ef79bbde P |
703 | if (Config.HLE) |
704 | psxBiosFreeze(0); | |
705 | ||
706 | // gpu | |
707 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
496d88d4 | 708 | SaveFuncs.read(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
709 | GPU_freeze(0, gpufP); |
710 | free(gpufP); | |
ddbaf678 | 711 | if (HW_GPU_STATUS == 0) |
adb7d7ac | 712 | HW_GPU_STATUS = SWAP32(GPU_readStatus()); |
ef79bbde P |
713 | |
714 | // spu | |
496d88d4 | 715 | SaveFuncs.read(f, &Size, 4); |
ef79bbde | 716 | spufP = (SPUFreeze_t *)malloc(Size); |
496d88d4 | 717 | SaveFuncs.read(f, spufP, Size); |
650adfd2 | 718 | SPU_freeze(0, spufP, psxRegs.cycle); |
ef79bbde P |
719 | free(spufP); |
720 | ||
721 | sioFreeze(f, 0); | |
722 | cdrFreeze(f, 0); | |
723 | psxHwFreeze(f, 0); | |
724 | psxRcntFreeze(f, 0); | |
725 | mdecFreeze(f, 0); | |
03f55e6b | 726 | new_dyna_freeze(f, 0); |
ef79bbde | 727 | |
496d88d4 | 728 | SaveFuncs.close(f); |
ef79bbde P |
729 | |
730 | return 0; | |
731 | } | |
732 | ||
733 | int CheckState(const char *file) { | |
496d88d4 | 734 | void *f; |
ef79bbde P |
735 | char header[32]; |
736 | u32 version; | |
737 | boolean hle; | |
738 | ||
496d88d4 | 739 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
740 | if (f == NULL) return -1; |
741 | ||
496d88d4 | 742 | SaveFuncs.read(f, header, sizeof(header)); |
743 | SaveFuncs.read(f, &version, sizeof(u32)); | |
744 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 745 | |
496d88d4 | 746 | SaveFuncs.close(f); |
ef79bbde | 747 | |
33f56da1 | 748 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
ef79bbde P |
749 | return -1; |
750 | ||
751 | return 0; | |
752 | } | |
753 | ||
754 | // NET Function Helpers | |
755 | ||
756 | int SendPcsxInfo() { | |
757 | if (NET_recvData == NULL || NET_sendData == NULL) | |
758 | return 0; | |
759 | ||
760 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
761 | NET_sendData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
762 | NET_sendData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
763 | NET_sendData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
764 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
765 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
766 | ||
767 | return 0; | |
768 | } | |
769 | ||
770 | int RecvPcsxInfo() { | |
771 | int tmp; | |
772 | ||
773 | if (NET_recvData == NULL || NET_sendData == NULL) | |
774 | return 0; | |
775 | ||
776 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
777 | NET_recvData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
778 | NET_recvData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
779 | NET_recvData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
780 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
781 | ||
782 | SysUpdate(); | |
783 | ||
784 | tmp = Config.Cpu; | |
785 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
786 | if (tmp != Config.Cpu) { | |
787 | psxCpu->Shutdown(); | |
630b122b | 788 | #ifndef DRC_DISABLE |
ef79bbde P |
789 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
790 | else psxCpu = &psxRec; | |
791 | #else | |
792 | psxCpu = &psxInt; | |
793 | #endif | |
794 | if (psxCpu->Init() == -1) { | |
795 | SysClose(); return -1; | |
796 | } | |
797 | psxCpu->Reset(); | |
798 | } | |
799 | ||
800 | return 0; | |
801 | } | |
802 | ||
803 | // remove the leading and trailing spaces in a string | |
804 | void trim(char *str) { | |
805 | int pos = 0; | |
806 | char *dest = str; | |
807 | ||
808 | // skip leading blanks | |
809 | while (str[pos] <= ' ' && str[pos] > 0) | |
810 | pos++; | |
811 | ||
812 | while (str[pos]) { | |
813 | *(dest++) = str[pos]; | |
814 | pos++; | |
815 | } | |
816 | ||
817 | *(dest--) = '\0'; // store the null | |
818 | ||
819 | // remove trailing blanks | |
820 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
821 | *(dest--) = '\0'; | |
822 | } | |
823 | ||
824 | // lookup table for crc calculation | |
825 | static unsigned short crctab[256] = { | |
826 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
827 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
828 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
829 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
830 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
831 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
832 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
833 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
834 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
835 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
836 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
837 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
838 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
839 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
840 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
841 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
842 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
843 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
844 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
845 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
846 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
847 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
848 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
849 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
850 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
851 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
852 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
853 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
854 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
855 | }; | |
856 | ||
857 | u16 calcCrc(u8 *d, int len) { | |
858 | u16 crc = 0; | |
859 | int i; | |
860 | ||
861 | for (i = 0; i < len; i++) { | |
862 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
863 | } | |
864 | ||
865 | return ~crc; | |
866 | } |