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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" |
496d88d4 | 31 | #include <zlib.h> |
ef79bbde P |
32 | |
33 | char CdromId[10] = ""; | |
34 | char CdromLabel[33] = ""; | |
35 | ||
36 | // PSX Executable types | |
37 | #define PSX_EXE 1 | |
38 | #define CPE_EXE 2 | |
39 | #define COFF_EXE 3 | |
40 | #define INVALID_EXE 4 | |
41 | ||
42 | #define ISODCL(from, to) (to - from + 1) | |
43 | ||
44 | struct iso_directory_record { | |
45 | char length [ISODCL (1, 1)]; /* 711 */ | |
46 | char ext_attr_length [ISODCL (2, 2)]; /* 711 */ | |
47 | char extent [ISODCL (3, 10)]; /* 733 */ | |
48 | char size [ISODCL (11, 18)]; /* 733 */ | |
49 | char date [ISODCL (19, 25)]; /* 7 by 711 */ | |
50 | char flags [ISODCL (26, 26)]; | |
51 | char file_unit_size [ISODCL (27, 27)]; /* 711 */ | |
52 | char interleave [ISODCL (28, 28)]; /* 711 */ | |
53 | char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ | |
54 | unsigned char name_len [ISODCL (33, 33)]; /* 711 */ | |
55 | char name [1]; | |
56 | }; | |
57 | ||
58 | void mmssdd( char *b, char *p ) | |
59 | { | |
60 | int m, s, d; | |
0a260183 | 61 | int block = SWAP32(*((uint32_t*) b)); |
ef79bbde P |
62 | |
63 | block += 150; | |
64 | m = block / 4500; // minutes | |
65 | block = block - m * 4500; // minutes rest | |
66 | s = block / 75; // seconds | |
67 | d = block - s * 75; // seconds rest | |
68 | ||
69 | m = ((m / 10) << 4) | m % 10; | |
70 | s = ((s / 10) << 4) | s % 10; | |
3e42b115 | 71 | d = ((d / 10) << 4) | d % 10; |
ef79bbde P |
72 | |
73 | p[0] = m; | |
74 | p[1] = s; | |
75 | p[2] = d; | |
76 | } | |
77 | ||
78 | #define incTime() \ | |
79 | time[0] = btoi(time[0]); time[1] = btoi(time[1]); time[2] = btoi(time[2]); \ | |
80 | time[2]++; \ | |
81 | if(time[2] == 75) { \ | |
82 | time[2] = 0; \ | |
83 | time[1]++; \ | |
84 | if (time[1] == 60) { \ | |
85 | time[1] = 0; \ | |
86 | time[0]++; \ | |
87 | } \ | |
88 | } \ | |
89 | time[0] = itob(time[0]); time[1] = itob(time[1]); time[2] = itob(time[2]); | |
90 | ||
91 | #define READTRACK() \ | |
92 | if (CDR_readTrack(time) == -1) return -1; \ | |
305c8c93 | 93 | buf = (void *)CDR_getBuffer(); \ |
94 | if (buf == NULL) return -1; \ | |
95 | else CheckPPFCache((u8 *)buf, time[0], time[1], time[2]); | |
ef79bbde P |
96 | |
97 | #define READDIR(_dir) \ | |
98 | READTRACK(); \ | |
99 | memcpy(_dir, buf + 12, 2048); \ | |
100 | \ | |
101 | incTime(); \ | |
102 | READTRACK(); \ | |
103 | memcpy(_dir + 2048, buf + 12, 2048); | |
104 | ||
305c8c93 | 105 | int GetCdromFile(u8 *mdir, u8 *time, char *filename) { |
ef79bbde | 106 | struct iso_directory_record *dir; |
5be6eaeb | 107 | int retval = -1; |
305c8c93 | 108 | u8 ddir[4096]; |
ef79bbde P |
109 | u8 *buf; |
110 | int i; | |
111 | ||
112 | // only try to scan if a filename is given | |
113 | if (!strlen(filename)) return -1; | |
114 | ||
115 | i = 0; | |
116 | while (i < 4096) { | |
117 | dir = (struct iso_directory_record*) &mdir[i]; | |
118 | if (dir->length[0] == 0) { | |
119 | return -1; | |
120 | } | |
1c2c2bfb | 121 | i += (u8)dir->length[0]; |
ef79bbde P |
122 | |
123 | if (dir->flags[0] & 0x2) { // it's a dir | |
124 | if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) { | |
125 | if (filename[dir->name_len[0]] != '\\') continue; | |
126 | ||
127 | filename += dir->name_len[0] + 1; | |
128 | ||
129 | mmssdd(dir->extent, (char *)time); | |
130 | READDIR(ddir); | |
131 | i = 0; | |
132 | mdir = ddir; | |
133 | } | |
134 | } else { | |
135 | if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) { | |
136 | mmssdd(dir->extent, (char *)time); | |
5be6eaeb | 137 | retval = 0; |
ef79bbde P |
138 | break; |
139 | } | |
140 | } | |
141 | } | |
5be6eaeb | 142 | return retval; |
ef79bbde P |
143 | } |
144 | ||
f3a78e7e | 145 | static const unsigned int gpu_ctl_def[] = { |
146 | 0x00000000, 0x01000000, 0x03000000, 0x04000000, | |
147 | 0x05000800, 0x06c60260, 0x0703fc10, 0x08000027, | |
148 | }; | |
149 | ||
150 | static const unsigned int gpu_data_def[] = { | |
151 | 0xe100360b, 0xe2000000, 0xe3000800, 0xe4077e7f, | |
152 | 0xe5001000, 0xe6000000, | |
153 | 0x02000000, 0x00000000, 0x01ff03ff, | |
154 | }; | |
155 | ||
156 | static void fake_bios_gpu_setup(void) | |
157 | { | |
158 | int i; | |
159 | ||
160 | for (i = 0; i < sizeof(gpu_ctl_def) / sizeof(gpu_ctl_def[0]); i++) | |
161 | GPU_writeStatus(gpu_ctl_def[i]); | |
162 | ||
163 | for (i = 0; i < sizeof(gpu_data_def) / sizeof(gpu_data_def[0]); i++) | |
164 | GPU_writeData(gpu_data_def[i]); | |
165 | } | |
166 | ||
ef79bbde P |
167 | int LoadCdrom() { |
168 | EXE_HEADER tmpHead; | |
169 | struct iso_directory_record *dir; | |
170 | u8 time[4], *buf; | |
171 | u8 mdir[4096]; | |
305c8c93 | 172 | char exename[256]; |
ef79bbde | 173 | |
f3a78e7e | 174 | // not the best place to do it, but since BIOS boot logo killer |
175 | // is just below, do it here | |
176 | fake_bios_gpu_setup(); | |
177 | ||
f422f444 | 178 | if (!Config.HLE && !Config.SlowBoot) { |
f3a78e7e | 179 | // skip BIOS logos |
ef79bbde P |
180 | psxRegs.pc = psxRegs.GPR.n.ra; |
181 | return 0; | |
182 | } | |
183 | ||
184 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
185 | ||
186 | READTRACK(); | |
187 | ||
188 | // skip head and sub, and go to the root directory record | |
3e42b115 | 189 | dir = (struct iso_directory_record*) &buf[12+156]; |
ef79bbde P |
190 | |
191 | mmssdd(dir->extent, (char*)time); | |
192 | ||
193 | READDIR(mdir); | |
194 | ||
195 | // Load SYSTEM.CNF and scan for the main executable | |
196 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { | |
197 | // if SYSTEM.CNF is missing, start an existing PSX.EXE | |
198 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; | |
199 | ||
200 | READTRACK(); | |
201 | } | |
202 | else { | |
203 | // read the SYSTEM.CNF | |
204 | READTRACK(); | |
205 | ||
9a9bcd78 | 206 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 207 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 208 | sscanf((char *)buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde | 209 | if (GetCdromFile(mdir, time, exename) == -1) { |
305c8c93 | 210 | char *ptr = strstr((char *)buf + 12, "cdrom:"); |
ef79bbde P |
211 | if (ptr != NULL) { |
212 | ptr += 6; | |
213 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
214 | strncpy(exename, ptr, 255); | |
215 | exename[255] = '\0'; | |
216 | ptr = exename; | |
217 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
218 | *ptr = '\0'; | |
219 | if (GetCdromFile(mdir, time, exename) == -1) | |
220 | return -1; | |
221 | } else | |
222 | return -1; | |
223 | } | |
224 | } | |
225 | ||
226 | // Read the EXE-Header | |
227 | READTRACK(); | |
228 | } | |
229 | ||
230 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); | |
231 | ||
232 | psxRegs.pc = SWAP32(tmpHead.pc0); | |
233 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
3e42b115 | 234 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); |
ef79bbde P |
235 | if (psxRegs.GPR.n.sp == 0) psxRegs.GPR.n.sp = 0x801fff00; |
236 | ||
237 | tmpHead.t_size = SWAP32(tmpHead.t_size); | |
238 | tmpHead.t_addr = SWAP32(tmpHead.t_addr); | |
239 | ||
ebe6ff2b | 240 | psxCpu->Clear(tmpHead.t_addr, tmpHead.t_size / 4); |
952943a7 | 241 | psxCpu->Reset(); |
ebe6ff2b | 242 | |
ef79bbde | 243 | // Read the rest of the main executable |
ebe6ff2b | 244 | while (tmpHead.t_size & ~2047) { |
ef79bbde P |
245 | void *ptr = (void *)PSXM(tmpHead.t_addr); |
246 | ||
247 | incTime(); | |
248 | READTRACK(); | |
249 | ||
b012a437 | 250 | if (ptr != INVALID_PTR) memcpy(ptr, buf+12, 2048); |
ef79bbde P |
251 | |
252 | tmpHead.t_size -= 2048; | |
253 | tmpHead.t_addr += 2048; | |
254 | } | |
255 | ||
256 | return 0; | |
257 | } | |
258 | ||
259 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { | |
260 | struct iso_directory_record *dir; | |
261 | u8 time[4],*buf; | |
305c8c93 | 262 | u8 mdir[4096]; |
263 | char exename[256]; | |
ef79bbde | 264 | u32 size, addr; |
305c8c93 | 265 | void *mem; |
ef79bbde | 266 | |
9a9bcd78 | 267 | sscanf(filename, "cdrom:\\%255s", exename); |
ef79bbde P |
268 | |
269 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
270 | ||
271 | READTRACK(); | |
272 | ||
273 | // skip head and sub, and go to the root directory record | |
3e42b115 | 274 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
275 | |
276 | mmssdd(dir->extent, (char*)time); | |
277 | ||
278 | READDIR(mdir); | |
279 | ||
280 | if (GetCdromFile(mdir, time, exename) == -1) return -1; | |
281 | ||
282 | READTRACK(); | |
283 | ||
284 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
285 | size = head->t_size; | |
286 | addr = head->t_addr; | |
287 | ||
ebe6ff2b | 288 | psxCpu->Clear(addr, size / 4); |
952943a7 | 289 | psxCpu->Reset(); |
ebe6ff2b | 290 | |
291 | while (size & ~2047) { | |
ef79bbde P |
292 | incTime(); |
293 | READTRACK(); | |
294 | ||
305c8c93 | 295 | mem = PSXM(addr); |
b012a437 | 296 | if (mem != INVALID_PTR) |
305c8c93 | 297 | memcpy(mem, buf + 12, 2048); |
ef79bbde P |
298 | |
299 | size -= 2048; | |
300 | addr += 2048; | |
301 | } | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | int CheckCdrom() { | |
307 | struct iso_directory_record *dir; | |
305c8c93 | 308 | unsigned char time[4]; |
309 | char *buf; | |
ef79bbde P |
310 | unsigned char mdir[4096]; |
311 | char exename[256]; | |
e06ee7f4 | 312 | int i, len, c; |
ef79bbde P |
313 | |
314 | FreePPFCache(); | |
315 | ||
316 | time[0] = itob(0); | |
317 | time[1] = itob(2); | |
318 | time[2] = itob(0x10); | |
319 | ||
320 | READTRACK(); | |
321 | ||
e06ee7f4 | 322 | memset(CdromLabel, 0, sizeof(CdromLabel)); |
323 | memset(CdromId, 0, sizeof(CdromId)); | |
324 | memset(exename, 0, sizeof(exename)); | |
ef79bbde P |
325 | |
326 | strncpy(CdromLabel, buf + 52, 32); | |
327 | ||
328 | // skip head and sub, and go to the root directory record | |
3e42b115 | 329 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
330 | |
331 | mmssdd(dir->extent, (char *)time); | |
332 | ||
333 | READDIR(mdir); | |
334 | ||
335 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
336 | READTRACK(); | |
337 | ||
9a9bcd78 | 338 | sscanf(buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 339 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 340 | sscanf(buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde P |
341 | if (GetCdromFile(mdir, time, exename) == -1) { |
342 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
343 | if (ptr != NULL) { | |
344 | ptr += 6; | |
345 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
346 | strncpy(exename, ptr, 255); | |
347 | exename[255] = '\0'; | |
348 | ptr = exename; | |
349 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
350 | *ptr = '\0'; | |
351 | if (GetCdromFile(mdir, time, exename) == -1) | |
352 | return -1; // main executable not found | |
353 | } else | |
354 | return -1; | |
355 | } | |
356 | } | |
1893f408 | 357 | /* Workaround for Wild Arms EU/US which has non-standard string causing incorrect region detection */ |
358 | if (exename[0] == 'E' && exename[1] == 'X' && exename[2] == 'E' && exename[3] == '\\') { | |
359 | size_t offset = 4; | |
360 | size_t i, len = strlen(exename) - offset; | |
361 | for (i = 0; i < len; i++) | |
362 | exename[i] = exename[i + offset]; | |
363 | exename[i] = '\0'; | |
364 | } | |
ef79bbde P |
365 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { |
366 | strcpy(exename, "PSX.EXE;1"); | |
367 | strcpy(CdromId, "SLUS99999"); | |
368 | } else | |
369 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
370 | ||
371 | if (CdromId[0] == '\0') { | |
e06ee7f4 | 372 | len = strlen(exename); |
373 | c = 0; | |
374 | for (i = 0; i < len; ++i) { | |
375 | if (exename[i] == ';' || c >= sizeof(CdromId) - 1) | |
376 | break; | |
377 | if (isalnum(exename[i])) | |
378 | CdromId[c++] = exename[i]; | |
ef79bbde P |
379 | } |
380 | } | |
381 | ||
0e2e3f49 | 382 | if (CdromId[0] == '\0') |
383 | strcpy(CdromId, "SLUS99999"); | |
384 | ||
ef79bbde | 385 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
630b122b | 386 | if ( |
387 | /* Make sure Wild Arms SCUS-94608 is not detected as a PAL game. */ | |
388 | ((CdromId[0] == 's' || CdromId[0] == 'S') && (CdromId[2] == 'e' || CdromId[2] == 'E')) || | |
389 | !strncmp(CdromId, "DTLS3035", 8) || | |
390 | !strncmp(CdromId, "PBPX95001", 9) || // according to redump.org, these PAL | |
391 | !strncmp(CdromId, "PBPX95007", 9) || // discs have a non-standard ID; | |
392 | !strncmp(CdromId, "PBPX95008", 9)) // add more serials if they are discovered. | |
ef79bbde P |
393 | Config.PsxType = PSX_TYPE_PAL; // pal |
394 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
395 | } | |
396 | ||
397 | if (CdromLabel[0] == ' ') { | |
630b122b | 398 | strncpy(CdromLabel, CdromId, 9); |
ef79bbde P |
399 | } |
400 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
401 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
e06ee7f4 | 402 | SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename); |
630b122b | 403 | |
404 | Apply_Hacks_Cdrom(); | |
ef79bbde P |
405 | |
406 | BuildPPFCache(); | |
407 | ||
408 | return 0; | |
409 | } | |
410 | ||
411 | static int PSXGetFileType(FILE *f) { | |
412 | unsigned long current; | |
413 | u8 mybuf[2048]; | |
414 | EXE_HEADER *exe_hdr; | |
415 | FILHDR *coff_hdr; | |
416 | ||
417 | current = ftell(f); | |
418 | fseek(f, 0L, SEEK_SET); | |
9361a5aa EC |
419 | if (fread(&mybuf, sizeof(mybuf), 1, f) != sizeof(mybuf)) |
420 | goto io_fail; | |
421 | ||
ef79bbde P |
422 | fseek(f, current, SEEK_SET); |
423 | ||
424 | exe_hdr = (EXE_HEADER *)mybuf; | |
425 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
426 | return PSX_EXE; | |
427 | ||
428 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
429 | return CPE_EXE; | |
430 | ||
431 | coff_hdr = (FILHDR *)mybuf; | |
432 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
433 | return COFF_EXE; | |
434 | ||
435 | return INVALID_EXE; | |
9361a5aa EC |
436 | |
437 | io_fail: | |
438 | #ifndef NDEBUG | |
439 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
440 | #endif | |
441 | return INVALID_EXE; | |
ef79bbde P |
442 | } |
443 | ||
96bef96f | 444 | // temporary pandora workaround.. |
445 | // FIXME: remove | |
446 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
447 | { | |
448 | void *tmp; | |
449 | size_t ret = 0; | |
3e42b115 | 450 | |
96bef96f | 451 | tmp = malloc(size * nmemb); |
452 | if (tmp) { | |
453 | ret = fread(tmp, size, nmemb, stream); | |
454 | memcpy(ptr, tmp, size * nmemb); | |
455 | free(tmp); | |
456 | } | |
457 | return ret; | |
458 | } | |
459 | ||
ef79bbde P |
460 | int Load(const char *ExePath) { |
461 | FILE *tmpFile; | |
462 | EXE_HEADER tmpHead; | |
463 | int type; | |
464 | int retval = 0; | |
465 | u8 opcode; | |
466 | u32 section_address, section_size; | |
ebe6ff2b | 467 | void *mem; |
ef79bbde | 468 | |
3e42b115 | 469 | strcpy(CdromId, "SLUS99999"); |
470 | strcpy(CdromLabel, "SLUS_999.99"); | |
ef79bbde P |
471 | |
472 | tmpFile = fopen(ExePath, "rb"); | |
473 | if (tmpFile == NULL) { | |
474 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
475 | retval = -1; | |
476 | } else { | |
477 | type = PSXGetFileType(tmpFile); | |
478 | switch (type) { | |
479 | case PSX_EXE: | |
9361a5aa EC |
480 | if (fread(&tmpHead, sizeof(EXE_HEADER), 1, tmpFile) != sizeof(EXE_HEADER)) |
481 | goto fail_io; | |
ebe6ff2b | 482 | section_address = SWAP32(tmpHead.t_addr); |
483 | section_size = SWAP32(tmpHead.t_size); | |
484 | mem = PSXM(section_address); | |
b012a437 | 485 | if (mem != INVALID_PTR) { |
3e42b115 | 486 | fseek(tmpFile, 0x800, SEEK_SET); |
96bef96f | 487 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 488 | psxCpu->Clear(section_address, section_size / 4); |
489 | } | |
ef79bbde P |
490 | psxRegs.pc = SWAP32(tmpHead.pc0); |
491 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
3e42b115 | 492 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); |
ef79bbde P |
493 | if (psxRegs.GPR.n.sp == 0) |
494 | psxRegs.GPR.n.sp = 0x801fff00; | |
495 | retval = 0; | |
496 | break; | |
497 | case CPE_EXE: | |
498 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
499 | do { | |
9361a5aa EC |
500 | if (fread(&opcode, sizeof(opcode), 1, tmpFile) != sizeof(opcode)) |
501 | goto fail_io; | |
ef79bbde P |
502 | switch (opcode) { |
503 | case 1: /* Section loading */ | |
9361a5aa EC |
504 | if (fread(§ion_address, sizeof(section_address), 1, tmpFile) != sizeof(section_address)) |
505 | goto fail_io; | |
506 | if (fread(§ion_size, sizeof(section_size), 1, tmpFile) != sizeof(section_size)) | |
507 | goto fail_io; | |
ef79bbde P |
508 | section_address = SWAPu32(section_address); |
509 | section_size = SWAPu32(section_size); | |
510 | #ifdef EMU_LOG | |
511 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
512 | #endif | |
ebe6ff2b | 513 | mem = PSXM(section_address); |
b012a437 | 514 | if (mem != INVALID_PTR) { |
96bef96f | 515 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 516 | psxCpu->Clear(section_address, section_size / 4); |
517 | } | |
ef79bbde P |
518 | break; |
519 | case 3: /* register loading (PC only?) */ | |
520 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
9361a5aa EC |
521 | if (fread(&psxRegs.pc, sizeof(psxRegs.pc), 1, tmpFile) != sizeof(psxRegs.pc)) |
522 | goto fail_io; | |
ef79bbde P |
523 | psxRegs.pc = SWAPu32(psxRegs.pc); |
524 | break; | |
525 | case 0: /* End of file */ | |
526 | break; | |
527 | default: | |
528 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
529 | retval = -1; | |
530 | break; | |
531 | } | |
532 | } while (opcode != 0 && retval == 0); | |
533 | break; | |
534 | case COFF_EXE: | |
535 | SysPrintf(_("COFF files not supported.\n")); | |
536 | retval = -1; | |
537 | break; | |
538 | case INVALID_EXE: | |
8f00f96c | 539 | SysPrintf(_("This file does not appear to be a valid PSX EXE file.\n")); |
540 | SysPrintf(_("(did you forget -cdfile ?)\n")); | |
ef79bbde P |
541 | retval = -1; |
542 | break; | |
543 | } | |
544 | } | |
545 | ||
546 | if (retval != 0) { | |
547 | CdromId[0] = '\0'; | |
548 | CdromLabel[0] = '\0'; | |
549 | } | |
550 | ||
9361a5aa | 551 | fclose(tmpFile); |
ef79bbde | 552 | return retval; |
9361a5aa EC |
553 | |
554 | fail_io: | |
555 | #ifndef NDEBUG | |
556 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
557 | #endif | |
558 | fclose(tmpFile); | |
559 | return -1; | |
ef79bbde P |
560 | } |
561 | ||
562 | // STATES | |
563 | ||
496d88d4 | 564 | static void *zlib_open(const char *name, const char *mode) |
565 | { | |
566 | return gzopen(name, mode); | |
567 | } | |
568 | ||
569 | static int zlib_read(void *file, void *buf, u32 len) | |
570 | { | |
571 | return gzread(file, buf, len); | |
572 | } | |
573 | ||
574 | static int zlib_write(void *file, const void *buf, u32 len) | |
575 | { | |
576 | return gzwrite(file, buf, len); | |
577 | } | |
578 | ||
579 | static long zlib_seek(void *file, long offs, int whence) | |
580 | { | |
581 | return gzseek(file, offs, whence); | |
582 | } | |
583 | ||
584 | static void zlib_close(void *file) | |
585 | { | |
586 | gzclose(file); | |
587 | } | |
588 | ||
589 | struct PcsxSaveFuncs SaveFuncs = { | |
590 | zlib_open, zlib_read, zlib_write, zlib_seek, zlib_close | |
591 | }; | |
592 | ||
202b29d4 | 593 | static const char PcsxHeader[32] = "STv4 PCSX v" PCSX_VERSION; |
ef79bbde P |
594 | |
595 | // Savestate Versioning! | |
596 | // If you make changes to the savestate version, please increment the value below. | |
df656dde | 597 | static const u32 SaveVersion = 0x8b410006; |
ef79bbde | 598 | |
6962f770 PC |
599 | static int drc_is_lightrec(void) |
600 | { | |
601 | #if defined(LIGHTREC) | |
602 | return 1; | |
603 | #else | |
604 | return 0; | |
605 | #endif | |
606 | } | |
607 | ||
ef79bbde | 608 | int SaveState(const char *file) { |
496d88d4 | 609 | void *f; |
ef79bbde P |
610 | GPUFreeze_t *gpufP; |
611 | SPUFreeze_t *spufP; | |
612 | int Size; | |
613 | unsigned char *pMem; | |
614 | ||
496d88d4 | 615 | f = SaveFuncs.open(file, "wb"); |
ef79bbde P |
616 | if (f == NULL) return -1; |
617 | ||
03f55e6b | 618 | new_dyna_before_save(); |
52082bc1 | 619 | |
02dbc869 | 620 | if (drc_is_lightrec() && Config.Cpu != CPU_INTERPRETER) |
6962f770 PC |
621 | lightrec_plugin_prepare_save_state(); |
622 | ||
496d88d4 | 623 | SaveFuncs.write(f, (void *)PcsxHeader, 32); |
624 | SaveFuncs.write(f, (void *)&SaveVersion, sizeof(u32)); | |
625 | SaveFuncs.write(f, (void *)&Config.HLE, sizeof(boolean)); | |
ef79bbde P |
626 | |
627 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
628 | if (pMem == NULL) return -1; | |
629 | GPU_getScreenPic(pMem); | |
496d88d4 | 630 | SaveFuncs.write(f, pMem, 128 * 96 * 3); |
ef79bbde P |
631 | free(pMem); |
632 | ||
633 | if (Config.HLE) | |
634 | psxBiosFreeze(1); | |
635 | ||
496d88d4 | 636 | SaveFuncs.write(f, psxM, 0x00200000); |
637 | SaveFuncs.write(f, psxR, 0x00080000); | |
638 | SaveFuncs.write(f, psxH, 0x00010000); | |
630b122b | 639 | // only partial save of psxRegisters to maintain savestate compat |
640 | SaveFuncs.write(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); | |
ef79bbde P |
641 | |
642 | // gpu | |
643 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
644 | gpufP->ulFreezeVersion = 1; | |
645 | GPU_freeze(1, gpufP); | |
496d88d4 | 646 | SaveFuncs.write(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
647 | free(gpufP); |
648 | ||
649 | // spu | |
650 | spufP = (SPUFreeze_t *) malloc(16); | |
650adfd2 | 651 | SPU_freeze(2, spufP, psxRegs.cycle); |
496d88d4 | 652 | Size = spufP->Size; SaveFuncs.write(f, &Size, 4); |
ef79bbde P |
653 | free(spufP); |
654 | spufP = (SPUFreeze_t *) malloc(Size); | |
650adfd2 | 655 | SPU_freeze(1, spufP, psxRegs.cycle); |
496d88d4 | 656 | SaveFuncs.write(f, spufP, Size); |
ef79bbde P |
657 | free(spufP); |
658 | ||
659 | sioFreeze(f, 1); | |
660 | cdrFreeze(f, 1); | |
661 | psxHwFreeze(f, 1); | |
662 | psxRcntFreeze(f, 1); | |
663 | mdecFreeze(f, 1); | |
03f55e6b | 664 | new_dyna_freeze(f, 1); |
ef79bbde | 665 | |
496d88d4 | 666 | SaveFuncs.close(f); |
ef79bbde | 667 | |
5b8c000f | 668 | new_dyna_after_save(); |
669 | ||
ef79bbde P |
670 | return 0; |
671 | } | |
672 | ||
673 | int LoadState(const char *file) { | |
496d88d4 | 674 | void *f; |
ef79bbde P |
675 | GPUFreeze_t *gpufP; |
676 | SPUFreeze_t *spufP; | |
677 | int Size; | |
678 | char header[32]; | |
679 | u32 version; | |
680 | boolean hle; | |
681 | ||
496d88d4 | 682 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
683 | if (f == NULL) return -1; |
684 | ||
496d88d4 | 685 | SaveFuncs.read(f, header, sizeof(header)); |
686 | SaveFuncs.read(f, &version, sizeof(u32)); | |
687 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 688 | |
33f56da1 | 689 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
496d88d4 | 690 | SaveFuncs.close(f); |
ef79bbde P |
691 | return -1; |
692 | } | |
33f56da1 | 693 | Config.HLE = hle; |
694 | ||
695 | if (Config.HLE) | |
696 | psxBiosInit(); | |
ef79bbde | 697 | |
6962f770 PC |
698 | if (!drc_is_lightrec() || Config.Cpu == CPU_INTERPRETER) |
699 | psxCpu->Reset(); | |
496d88d4 | 700 | SaveFuncs.seek(f, 128 * 96 * 3, SEEK_CUR); |
ef79bbde | 701 | |
496d88d4 | 702 | SaveFuncs.read(f, psxM, 0x00200000); |
703 | SaveFuncs.read(f, psxR, 0x00080000); | |
704 | SaveFuncs.read(f, psxH, 0x00010000); | |
630b122b | 705 | SaveFuncs.read(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); |
706 | psxRegs.gteBusyCycle = psxRegs.cycle; | |
ef79bbde | 707 | |
6962f770 PC |
708 | if (drc_is_lightrec() && Config.Cpu != CPU_INTERPRETER) |
709 | lightrec_plugin_prepare_load_state(); | |
710 | ||
ef79bbde P |
711 | if (Config.HLE) |
712 | psxBiosFreeze(0); | |
713 | ||
714 | // gpu | |
715 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
496d88d4 | 716 | SaveFuncs.read(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
717 | GPU_freeze(0, gpufP); |
718 | free(gpufP); | |
ddbaf678 | 719 | if (HW_GPU_STATUS == 0) |
adb7d7ac | 720 | HW_GPU_STATUS = SWAP32(GPU_readStatus()); |
ef79bbde P |
721 | |
722 | // spu | |
496d88d4 | 723 | SaveFuncs.read(f, &Size, 4); |
ef79bbde | 724 | spufP = (SPUFreeze_t *)malloc(Size); |
496d88d4 | 725 | SaveFuncs.read(f, spufP, Size); |
650adfd2 | 726 | SPU_freeze(0, spufP, psxRegs.cycle); |
ef79bbde P |
727 | free(spufP); |
728 | ||
729 | sioFreeze(f, 0); | |
730 | cdrFreeze(f, 0); | |
731 | psxHwFreeze(f, 0); | |
732 | psxRcntFreeze(f, 0); | |
733 | mdecFreeze(f, 0); | |
03f55e6b | 734 | new_dyna_freeze(f, 0); |
ef79bbde | 735 | |
496d88d4 | 736 | SaveFuncs.close(f); |
ef79bbde P |
737 | |
738 | return 0; | |
739 | } | |
740 | ||
741 | int CheckState(const char *file) { | |
496d88d4 | 742 | void *f; |
ef79bbde P |
743 | char header[32]; |
744 | u32 version; | |
745 | boolean hle; | |
746 | ||
496d88d4 | 747 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
748 | if (f == NULL) return -1; |
749 | ||
496d88d4 | 750 | SaveFuncs.read(f, header, sizeof(header)); |
751 | SaveFuncs.read(f, &version, sizeof(u32)); | |
752 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 753 | |
496d88d4 | 754 | SaveFuncs.close(f); |
ef79bbde | 755 | |
33f56da1 | 756 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
ef79bbde P |
757 | return -1; |
758 | ||
759 | return 0; | |
760 | } | |
761 | ||
762 | // NET Function Helpers | |
763 | ||
764 | int SendPcsxInfo() { | |
765 | if (NET_recvData == NULL || NET_sendData == NULL) | |
766 | return 0; | |
767 | ||
768 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
769 | NET_sendData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
770 | NET_sendData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
771 | NET_sendData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
772 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
773 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
778 | int RecvPcsxInfo() { | |
779 | int tmp; | |
780 | ||
781 | if (NET_recvData == NULL || NET_sendData == NULL) | |
782 | return 0; | |
783 | ||
784 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
785 | NET_recvData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
786 | NET_recvData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
787 | NET_recvData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
788 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
789 | ||
790 | SysUpdate(); | |
791 | ||
792 | tmp = Config.Cpu; | |
793 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
794 | if (tmp != Config.Cpu) { | |
795 | psxCpu->Shutdown(); | |
630b122b | 796 | #ifndef DRC_DISABLE |
ef79bbde P |
797 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
798 | else psxCpu = &psxRec; | |
799 | #else | |
800 | psxCpu = &psxInt; | |
801 | #endif | |
802 | if (psxCpu->Init() == -1) { | |
803 | SysClose(); return -1; | |
804 | } | |
805 | psxCpu->Reset(); | |
806 | } | |
807 | ||
808 | return 0; | |
809 | } | |
810 | ||
811 | // remove the leading and trailing spaces in a string | |
812 | void trim(char *str) { | |
813 | int pos = 0; | |
814 | char *dest = str; | |
815 | ||
816 | // skip leading blanks | |
817 | while (str[pos] <= ' ' && str[pos] > 0) | |
818 | pos++; | |
819 | ||
820 | while (str[pos]) { | |
821 | *(dest++) = str[pos]; | |
822 | pos++; | |
823 | } | |
824 | ||
825 | *(dest--) = '\0'; // store the null | |
826 | ||
827 | // remove trailing blanks | |
828 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
829 | *(dest--) = '\0'; | |
830 | } | |
831 | ||
832 | // lookup table for crc calculation | |
833 | static unsigned short crctab[256] = { | |
834 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
835 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
836 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
837 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
838 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
839 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
840 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
841 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
842 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
843 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
844 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
845 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
846 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
847 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
848 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
849 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
850 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
851 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
852 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
853 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
854 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
855 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
856 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
857 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
858 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
859 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
860 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
861 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
862 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
863 | }; | |
864 | ||
865 | u16 calcCrc(u8 *d, int len) { | |
866 | u16 crc = 0; | |
867 | int i; | |
868 | ||
869 | for (i = 0; i < len; i++) { | |
870 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
871 | } | |
872 | ||
873 | return ~crc; | |
874 | } |