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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 | ||
24 | #include "misc.h" | |
25 | #include "cdrom.h" | |
26 | #include "mdec.h" | |
ddbaf678 | 27 | #include "gpu.h" |
ef79bbde | 28 | #include "ppf.h" |
eedfe806 | 29 | #include "database.h" |
496d88d4 | 30 | #include <zlib.h> |
ef79bbde P |
31 | |
32 | char CdromId[10] = ""; | |
33 | char CdromLabel[33] = ""; | |
34 | ||
35 | // PSX Executable types | |
36 | #define PSX_EXE 1 | |
37 | #define CPE_EXE 2 | |
38 | #define COFF_EXE 3 | |
39 | #define INVALID_EXE 4 | |
40 | ||
41 | #define ISODCL(from, to) (to - from + 1) | |
42 | ||
43 | struct iso_directory_record { | |
44 | char length [ISODCL (1, 1)]; /* 711 */ | |
45 | char ext_attr_length [ISODCL (2, 2)]; /* 711 */ | |
46 | char extent [ISODCL (3, 10)]; /* 733 */ | |
47 | char size [ISODCL (11, 18)]; /* 733 */ | |
48 | char date [ISODCL (19, 25)]; /* 7 by 711 */ | |
49 | char flags [ISODCL (26, 26)]; | |
50 | char file_unit_size [ISODCL (27, 27)]; /* 711 */ | |
51 | char interleave [ISODCL (28, 28)]; /* 711 */ | |
52 | char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ | |
53 | unsigned char name_len [ISODCL (33, 33)]; /* 711 */ | |
54 | char name [1]; | |
55 | }; | |
56 | ||
57 | void mmssdd( char *b, char *p ) | |
58 | { | |
59 | int m, s, d; | |
507aaf98 | 60 | #if defined(__arm__) |
7e443736 | 61 | unsigned char *u = (void *)b; |
62 | int block = (u[3] << 24) | (u[2] << 16) | (u[1] << 8) | u[0]; | |
507aaf98 | 63 | #elif defined(__BIGENDIAN__) |
ef79bbde P |
64 | int block = (b[0] & 0xff) | ((b[1] & 0xff) << 8) | ((b[2] & 0xff) << 16) | (b[3] << 24); |
65 | #else | |
66 | int block = *((int*)b); | |
67 | #endif | |
68 | ||
69 | block += 150; | |
70 | m = block / 4500; // minutes | |
71 | block = block - m * 4500; // minutes rest | |
72 | s = block / 75; // seconds | |
73 | d = block - s * 75; // seconds rest | |
74 | ||
75 | m = ((m / 10) << 4) | m % 10; | |
76 | s = ((s / 10) << 4) | s % 10; | |
77 | d = ((d / 10) << 4) | d % 10; | |
78 | ||
79 | p[0] = m; | |
80 | p[1] = s; | |
81 | p[2] = d; | |
82 | } | |
83 | ||
84 | #define incTime() \ | |
85 | time[0] = btoi(time[0]); time[1] = btoi(time[1]); time[2] = btoi(time[2]); \ | |
86 | time[2]++; \ | |
87 | if(time[2] == 75) { \ | |
88 | time[2] = 0; \ | |
89 | time[1]++; \ | |
90 | if (time[1] == 60) { \ | |
91 | time[1] = 0; \ | |
92 | time[0]++; \ | |
93 | } \ | |
94 | } \ | |
95 | time[0] = itob(time[0]); time[1] = itob(time[1]); time[2] = itob(time[2]); | |
96 | ||
97 | #define READTRACK() \ | |
98 | if (CDR_readTrack(time) == -1) return -1; \ | |
305c8c93 | 99 | buf = (void *)CDR_getBuffer(); \ |
100 | if (buf == NULL) return -1; \ | |
101 | else CheckPPFCache((u8 *)buf, time[0], time[1], time[2]); | |
ef79bbde P |
102 | |
103 | #define READDIR(_dir) \ | |
104 | READTRACK(); \ | |
105 | memcpy(_dir, buf + 12, 2048); \ | |
106 | \ | |
107 | incTime(); \ | |
108 | READTRACK(); \ | |
109 | memcpy(_dir + 2048, buf + 12, 2048); | |
110 | ||
305c8c93 | 111 | int GetCdromFile(u8 *mdir, u8 *time, char *filename) { |
ef79bbde | 112 | struct iso_directory_record *dir; |
5be6eaeb | 113 | int retval = -1; |
305c8c93 | 114 | u8 ddir[4096]; |
ef79bbde P |
115 | u8 *buf; |
116 | int i; | |
117 | ||
118 | // only try to scan if a filename is given | |
119 | if (!strlen(filename)) return -1; | |
120 | ||
121 | i = 0; | |
122 | while (i < 4096) { | |
123 | dir = (struct iso_directory_record*) &mdir[i]; | |
124 | if (dir->length[0] == 0) { | |
125 | return -1; | |
126 | } | |
1c2c2bfb | 127 | i += (u8)dir->length[0]; |
ef79bbde P |
128 | |
129 | if (dir->flags[0] & 0x2) { // it's a dir | |
130 | if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) { | |
131 | if (filename[dir->name_len[0]] != '\\') continue; | |
132 | ||
133 | filename += dir->name_len[0] + 1; | |
134 | ||
135 | mmssdd(dir->extent, (char *)time); | |
136 | READDIR(ddir); | |
137 | i = 0; | |
138 | mdir = ddir; | |
139 | } | |
140 | } else { | |
141 | if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) { | |
142 | mmssdd(dir->extent, (char *)time); | |
5be6eaeb | 143 | retval = 0; |
ef79bbde P |
144 | break; |
145 | } | |
146 | } | |
147 | } | |
5be6eaeb | 148 | return retval; |
ef79bbde P |
149 | } |
150 | ||
f3a78e7e | 151 | static const unsigned int gpu_ctl_def[] = { |
152 | 0x00000000, 0x01000000, 0x03000000, 0x04000000, | |
153 | 0x05000800, 0x06c60260, 0x0703fc10, 0x08000027, | |
154 | }; | |
155 | ||
156 | static const unsigned int gpu_data_def[] = { | |
157 | 0xe100360b, 0xe2000000, 0xe3000800, 0xe4077e7f, | |
158 | 0xe5001000, 0xe6000000, | |
159 | 0x02000000, 0x00000000, 0x01ff03ff, | |
160 | }; | |
161 | ||
162 | static void fake_bios_gpu_setup(void) | |
163 | { | |
164 | int i; | |
165 | ||
166 | for (i = 0; i < sizeof(gpu_ctl_def) / sizeof(gpu_ctl_def[0]); i++) | |
167 | GPU_writeStatus(gpu_ctl_def[i]); | |
168 | ||
169 | for (i = 0; i < sizeof(gpu_data_def) / sizeof(gpu_data_def[0]); i++) | |
170 | GPU_writeData(gpu_data_def[i]); | |
171 | } | |
172 | ||
ef79bbde P |
173 | int LoadCdrom() { |
174 | EXE_HEADER tmpHead; | |
175 | struct iso_directory_record *dir; | |
176 | u8 time[4], *buf; | |
177 | u8 mdir[4096]; | |
305c8c93 | 178 | char exename[256]; |
ef79bbde | 179 | |
f3a78e7e | 180 | // not the best place to do it, but since BIOS boot logo killer |
181 | // is just below, do it here | |
182 | fake_bios_gpu_setup(); | |
183 | ||
ef79bbde | 184 | if (!Config.HLE) { |
f3a78e7e | 185 | // skip BIOS logos |
ef79bbde P |
186 | psxRegs.pc = psxRegs.GPR.n.ra; |
187 | return 0; | |
188 | } | |
189 | ||
190 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
191 | ||
192 | READTRACK(); | |
193 | ||
194 | // skip head and sub, and go to the root directory record | |
195 | dir = (struct iso_directory_record*) &buf[12+156]; | |
196 | ||
197 | mmssdd(dir->extent, (char*)time); | |
198 | ||
199 | READDIR(mdir); | |
200 | ||
201 | // Load SYSTEM.CNF and scan for the main executable | |
202 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { | |
203 | // if SYSTEM.CNF is missing, start an existing PSX.EXE | |
204 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; | |
205 | ||
206 | READTRACK(); | |
207 | } | |
208 | else { | |
209 | // read the SYSTEM.CNF | |
210 | READTRACK(); | |
211 | ||
9a9bcd78 | 212 | sscanf((char *)buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 213 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 214 | sscanf((char *)buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde | 215 | if (GetCdromFile(mdir, time, exename) == -1) { |
305c8c93 | 216 | char *ptr = strstr((char *)buf + 12, "cdrom:"); |
ef79bbde P |
217 | if (ptr != NULL) { |
218 | ptr += 6; | |
219 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
220 | strncpy(exename, ptr, 255); | |
221 | exename[255] = '\0'; | |
222 | ptr = exename; | |
223 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
224 | *ptr = '\0'; | |
225 | if (GetCdromFile(mdir, time, exename) == -1) | |
226 | return -1; | |
227 | } else | |
228 | return -1; | |
229 | } | |
230 | } | |
231 | ||
232 | // Read the EXE-Header | |
233 | READTRACK(); | |
234 | } | |
235 | ||
236 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); | |
237 | ||
238 | psxRegs.pc = SWAP32(tmpHead.pc0); | |
239 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
240 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); | |
241 | if (psxRegs.GPR.n.sp == 0) psxRegs.GPR.n.sp = 0x801fff00; | |
242 | ||
243 | tmpHead.t_size = SWAP32(tmpHead.t_size); | |
244 | tmpHead.t_addr = SWAP32(tmpHead.t_addr); | |
245 | ||
ebe6ff2b | 246 | psxCpu->Clear(tmpHead.t_addr, tmpHead.t_size / 4); |
247 | ||
ef79bbde | 248 | // Read the rest of the main executable |
ebe6ff2b | 249 | while (tmpHead.t_size & ~2047) { |
ef79bbde P |
250 | void *ptr = (void *)PSXM(tmpHead.t_addr); |
251 | ||
252 | incTime(); | |
253 | READTRACK(); | |
254 | ||
255 | if (ptr != NULL) memcpy(ptr, buf+12, 2048); | |
256 | ||
257 | tmpHead.t_size -= 2048; | |
258 | tmpHead.t_addr += 2048; | |
259 | } | |
260 | ||
261 | return 0; | |
262 | } | |
263 | ||
264 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { | |
265 | struct iso_directory_record *dir; | |
266 | u8 time[4],*buf; | |
305c8c93 | 267 | u8 mdir[4096]; |
268 | char exename[256]; | |
ef79bbde | 269 | u32 size, addr; |
305c8c93 | 270 | void *mem; |
ef79bbde | 271 | |
9a9bcd78 | 272 | sscanf(filename, "cdrom:\\%255s", exename); |
ef79bbde P |
273 | |
274 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
275 | ||
276 | READTRACK(); | |
277 | ||
278 | // skip head and sub, and go to the root directory record | |
279 | dir = (struct iso_directory_record *)&buf[12 + 156]; | |
280 | ||
281 | mmssdd(dir->extent, (char*)time); | |
282 | ||
283 | READDIR(mdir); | |
284 | ||
285 | if (GetCdromFile(mdir, time, exename) == -1) return -1; | |
286 | ||
287 | READTRACK(); | |
288 | ||
289 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
290 | size = head->t_size; | |
291 | addr = head->t_addr; | |
292 | ||
ebe6ff2b | 293 | psxCpu->Clear(addr, size / 4); |
294 | ||
295 | while (size & ~2047) { | |
ef79bbde P |
296 | incTime(); |
297 | READTRACK(); | |
298 | ||
305c8c93 | 299 | mem = PSXM(addr); |
300 | if (mem) | |
301 | memcpy(mem, buf + 12, 2048); | |
ef79bbde P |
302 | |
303 | size -= 2048; | |
304 | addr += 2048; | |
305 | } | |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
310 | int CheckCdrom() { | |
311 | struct iso_directory_record *dir; | |
305c8c93 | 312 | unsigned char time[4]; |
313 | char *buf; | |
ef79bbde P |
314 | unsigned char mdir[4096]; |
315 | char exename[256]; | |
e06ee7f4 | 316 | int i, len, c; |
ef79bbde P |
317 | |
318 | FreePPFCache(); | |
319 | ||
320 | time[0] = itob(0); | |
321 | time[1] = itob(2); | |
322 | time[2] = itob(0x10); | |
323 | ||
324 | READTRACK(); | |
325 | ||
e06ee7f4 | 326 | memset(CdromLabel, 0, sizeof(CdromLabel)); |
327 | memset(CdromId, 0, sizeof(CdromId)); | |
328 | memset(exename, 0, sizeof(exename)); | |
ef79bbde P |
329 | |
330 | strncpy(CdromLabel, buf + 52, 32); | |
331 | ||
332 | // skip head and sub, and go to the root directory record | |
333 | dir = (struct iso_directory_record *)&buf[12 + 156]; | |
334 | ||
335 | mmssdd(dir->extent, (char *)time); | |
336 | ||
337 | READDIR(mdir); | |
338 | ||
339 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
340 | READTRACK(); | |
341 | ||
9a9bcd78 | 342 | sscanf(buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 343 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 344 | sscanf(buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde P |
345 | if (GetCdromFile(mdir, time, exename) == -1) { |
346 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
347 | if (ptr != NULL) { | |
348 | ptr += 6; | |
349 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
350 | strncpy(exename, ptr, 255); | |
351 | exename[255] = '\0'; | |
352 | ptr = exename; | |
353 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
354 | *ptr = '\0'; | |
355 | if (GetCdromFile(mdir, time, exename) == -1) | |
356 | return -1; // main executable not found | |
357 | } else | |
358 | return -1; | |
359 | } | |
360 | } | |
361 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { | |
362 | strcpy(exename, "PSX.EXE;1"); | |
363 | strcpy(CdromId, "SLUS99999"); | |
364 | } else | |
365 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
366 | ||
367 | if (CdromId[0] == '\0') { | |
e06ee7f4 | 368 | len = strlen(exename); |
369 | c = 0; | |
370 | for (i = 0; i < len; ++i) { | |
371 | if (exename[i] == ';' || c >= sizeof(CdromId) - 1) | |
372 | break; | |
373 | if (isalnum(exename[i])) | |
374 | CdromId[c++] = exename[i]; | |
ef79bbde P |
375 | } |
376 | } | |
377 | ||
0e2e3f49 | 378 | if (CdromId[0] == '\0') |
379 | strcpy(CdromId, "SLUS99999"); | |
380 | ||
ef79bbde | 381 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
a1dbab20 | 382 | if (CdromId[2] == 'e' || CdromId[2] == 'E') |
ef79bbde P |
383 | Config.PsxType = PSX_TYPE_PAL; // pal |
384 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
385 | } | |
386 | ||
387 | if (CdromLabel[0] == ' ') { | |
388 | strncpy(CdromLabel, CdromId, 9); | |
389 | } | |
390 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
391 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
e06ee7f4 | 392 | SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename); |
eedfe806 | 393 | |
394 | Apply_Hacks_Cdrom(); | |
ef79bbde P |
395 | |
396 | BuildPPFCache(); | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
401 | static int PSXGetFileType(FILE *f) { | |
402 | unsigned long current; | |
403 | u8 mybuf[2048]; | |
404 | EXE_HEADER *exe_hdr; | |
405 | FILHDR *coff_hdr; | |
406 | ||
407 | current = ftell(f); | |
408 | fseek(f, 0L, SEEK_SET); | |
409 | fread(mybuf, 2048, 1, f); | |
410 | fseek(f, current, SEEK_SET); | |
411 | ||
412 | exe_hdr = (EXE_HEADER *)mybuf; | |
413 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
414 | return PSX_EXE; | |
415 | ||
416 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
417 | return CPE_EXE; | |
418 | ||
419 | coff_hdr = (FILHDR *)mybuf; | |
420 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
421 | return COFF_EXE; | |
422 | ||
423 | return INVALID_EXE; | |
424 | } | |
425 | ||
96bef96f | 426 | // temporary pandora workaround.. |
427 | // FIXME: remove | |
428 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
429 | { | |
430 | void *tmp; | |
431 | size_t ret = 0; | |
432 | ||
433 | tmp = malloc(size * nmemb); | |
434 | if (tmp) { | |
435 | ret = fread(tmp, size, nmemb, stream); | |
436 | memcpy(ptr, tmp, size * nmemb); | |
437 | free(tmp); | |
438 | } | |
439 | return ret; | |
440 | } | |
441 | ||
ef79bbde P |
442 | int Load(const char *ExePath) { |
443 | FILE *tmpFile; | |
444 | EXE_HEADER tmpHead; | |
445 | int type; | |
446 | int retval = 0; | |
447 | u8 opcode; | |
448 | u32 section_address, section_size; | |
ebe6ff2b | 449 | void *mem; |
ef79bbde P |
450 | |
451 | strncpy(CdromId, "SLUS99999", 9); | |
452 | strncpy(CdromLabel, "SLUS_999.99", 11); | |
453 | ||
454 | tmpFile = fopen(ExePath, "rb"); | |
455 | if (tmpFile == NULL) { | |
456 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
457 | retval = -1; | |
458 | } else { | |
459 | type = PSXGetFileType(tmpFile); | |
460 | switch (type) { | |
461 | case PSX_EXE: | |
462 | fread(&tmpHead,sizeof(EXE_HEADER),1,tmpFile); | |
ebe6ff2b | 463 | section_address = SWAP32(tmpHead.t_addr); |
464 | section_size = SWAP32(tmpHead.t_size); | |
465 | mem = PSXM(section_address); | |
466 | if (mem != NULL) { | |
467 | fseek(tmpFile, 0x800, SEEK_SET); | |
96bef96f | 468 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 469 | psxCpu->Clear(section_address, section_size / 4); |
470 | } | |
ef79bbde P |
471 | fclose(tmpFile); |
472 | psxRegs.pc = SWAP32(tmpHead.pc0); | |
473 | psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0); | |
474 | psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr); | |
475 | if (psxRegs.GPR.n.sp == 0) | |
476 | psxRegs.GPR.n.sp = 0x801fff00; | |
477 | retval = 0; | |
478 | break; | |
479 | case CPE_EXE: | |
480 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
481 | do { | |
482 | fread(&opcode, 1, 1, tmpFile); | |
483 | switch (opcode) { | |
484 | case 1: /* Section loading */ | |
485 | fread(§ion_address, 4, 1, tmpFile); | |
486 | fread(§ion_size, 4, 1, tmpFile); | |
487 | section_address = SWAPu32(section_address); | |
488 | section_size = SWAPu32(section_size); | |
489 | #ifdef EMU_LOG | |
490 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
491 | #endif | |
ebe6ff2b | 492 | mem = PSXM(section_address); |
493 | if (mem != NULL) { | |
96bef96f | 494 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 495 | psxCpu->Clear(section_address, section_size / 4); |
496 | } | |
ef79bbde P |
497 | break; |
498 | case 3: /* register loading (PC only?) */ | |
499 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
500 | fread(&psxRegs.pc, 4, 1, tmpFile); | |
501 | psxRegs.pc = SWAPu32(psxRegs.pc); | |
502 | break; | |
503 | case 0: /* End of file */ | |
504 | break; | |
505 | default: | |
506 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
507 | retval = -1; | |
508 | break; | |
509 | } | |
510 | } while (opcode != 0 && retval == 0); | |
511 | break; | |
512 | case COFF_EXE: | |
513 | SysPrintf(_("COFF files not supported.\n")); | |
514 | retval = -1; | |
515 | break; | |
516 | case INVALID_EXE: | |
8f00f96c | 517 | SysPrintf(_("This file does not appear to be a valid PSX EXE file.\n")); |
518 | SysPrintf(_("(did you forget -cdfile ?)\n")); | |
ef79bbde P |
519 | retval = -1; |
520 | break; | |
521 | } | |
522 | } | |
523 | ||
524 | if (retval != 0) { | |
525 | CdromId[0] = '\0'; | |
526 | CdromLabel[0] = '\0'; | |
527 | } | |
528 | ||
529 | return retval; | |
530 | } | |
531 | ||
532 | // STATES | |
533 | ||
496d88d4 | 534 | static void *zlib_open(const char *name, const char *mode) |
535 | { | |
536 | return gzopen(name, mode); | |
537 | } | |
538 | ||
539 | static int zlib_read(void *file, void *buf, u32 len) | |
540 | { | |
541 | return gzread(file, buf, len); | |
542 | } | |
543 | ||
544 | static int zlib_write(void *file, const void *buf, u32 len) | |
545 | { | |
546 | return gzwrite(file, buf, len); | |
547 | } | |
548 | ||
549 | static long zlib_seek(void *file, long offs, int whence) | |
550 | { | |
551 | return gzseek(file, offs, whence); | |
552 | } | |
553 | ||
554 | static void zlib_close(void *file) | |
555 | { | |
556 | gzclose(file); | |
557 | } | |
558 | ||
559 | struct PcsxSaveFuncs SaveFuncs = { | |
560 | zlib_open, zlib_read, zlib_write, zlib_seek, zlib_close | |
561 | }; | |
562 | ||
ef79bbde P |
563 | static const char PcsxHeader[32] = "STv4 PCSX v" PACKAGE_VERSION; |
564 | ||
565 | // Savestate Versioning! | |
566 | // If you make changes to the savestate version, please increment the value below. | |
df656dde | 567 | static const u32 SaveVersion = 0x8b410006; |
ef79bbde P |
568 | |
569 | int SaveState(const char *file) { | |
496d88d4 | 570 | void *f; |
ef79bbde P |
571 | GPUFreeze_t *gpufP; |
572 | SPUFreeze_t *spufP; | |
573 | int Size; | |
574 | unsigned char *pMem; | |
575 | ||
496d88d4 | 576 | f = SaveFuncs.open(file, "wb"); |
ef79bbde P |
577 | if (f == NULL) return -1; |
578 | ||
03f55e6b | 579 | new_dyna_before_save(); |
52082bc1 | 580 | |
496d88d4 | 581 | SaveFuncs.write(f, (void *)PcsxHeader, 32); |
582 | SaveFuncs.write(f, (void *)&SaveVersion, sizeof(u32)); | |
583 | SaveFuncs.write(f, (void *)&Config.HLE, sizeof(boolean)); | |
ef79bbde P |
584 | |
585 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
586 | if (pMem == NULL) return -1; | |
587 | GPU_getScreenPic(pMem); | |
496d88d4 | 588 | SaveFuncs.write(f, pMem, 128 * 96 * 3); |
ef79bbde P |
589 | free(pMem); |
590 | ||
591 | if (Config.HLE) | |
592 | psxBiosFreeze(1); | |
593 | ||
496d88d4 | 594 | SaveFuncs.write(f, psxM, 0x00200000); |
595 | SaveFuncs.write(f, psxR, 0x00080000); | |
596 | SaveFuncs.write(f, psxH, 0x00010000); | |
597 | SaveFuncs.write(f, (void *)&psxRegs, sizeof(psxRegs)); | |
ef79bbde P |
598 | |
599 | // gpu | |
600 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
601 | gpufP->ulFreezeVersion = 1; | |
602 | GPU_freeze(1, gpufP); | |
496d88d4 | 603 | SaveFuncs.write(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
604 | free(gpufP); |
605 | ||
606 | // spu | |
607 | spufP = (SPUFreeze_t *) malloc(16); | |
650adfd2 | 608 | SPU_freeze(2, spufP, psxRegs.cycle); |
496d88d4 | 609 | Size = spufP->Size; SaveFuncs.write(f, &Size, 4); |
ef79bbde P |
610 | free(spufP); |
611 | spufP = (SPUFreeze_t *) malloc(Size); | |
650adfd2 | 612 | SPU_freeze(1, spufP, psxRegs.cycle); |
496d88d4 | 613 | SaveFuncs.write(f, spufP, Size); |
ef79bbde P |
614 | free(spufP); |
615 | ||
616 | sioFreeze(f, 1); | |
617 | cdrFreeze(f, 1); | |
618 | psxHwFreeze(f, 1); | |
619 | psxRcntFreeze(f, 1); | |
620 | mdecFreeze(f, 1); | |
03f55e6b | 621 | new_dyna_freeze(f, 1); |
ef79bbde | 622 | |
496d88d4 | 623 | SaveFuncs.close(f); |
ef79bbde | 624 | |
5b8c000f | 625 | new_dyna_after_save(); |
626 | ||
ef79bbde P |
627 | return 0; |
628 | } | |
629 | ||
630 | int LoadState(const char *file) { | |
496d88d4 | 631 | void *f; |
ef79bbde P |
632 | GPUFreeze_t *gpufP; |
633 | SPUFreeze_t *spufP; | |
634 | int Size; | |
635 | char header[32]; | |
636 | u32 version; | |
637 | boolean hle; | |
638 | ||
496d88d4 | 639 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
640 | if (f == NULL) return -1; |
641 | ||
496d88d4 | 642 | SaveFuncs.read(f, header, sizeof(header)); |
643 | SaveFuncs.read(f, &version, sizeof(u32)); | |
644 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 645 | |
33f56da1 | 646 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
496d88d4 | 647 | SaveFuncs.close(f); |
ef79bbde P |
648 | return -1; |
649 | } | |
33f56da1 | 650 | Config.HLE = hle; |
651 | ||
652 | if (Config.HLE) | |
653 | psxBiosInit(); | |
ef79bbde P |
654 | |
655 | psxCpu->Reset(); | |
496d88d4 | 656 | SaveFuncs.seek(f, 128 * 96 * 3, SEEK_CUR); |
ef79bbde | 657 | |
496d88d4 | 658 | SaveFuncs.read(f, psxM, 0x00200000); |
659 | SaveFuncs.read(f, psxR, 0x00080000); | |
660 | SaveFuncs.read(f, psxH, 0x00010000); | |
661 | SaveFuncs.read(f, (void *)&psxRegs, sizeof(psxRegs)); | |
ef79bbde P |
662 | |
663 | if (Config.HLE) | |
664 | psxBiosFreeze(0); | |
665 | ||
666 | // gpu | |
667 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
496d88d4 | 668 | SaveFuncs.read(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
669 | GPU_freeze(0, gpufP); |
670 | free(gpufP); | |
ddbaf678 | 671 | if (HW_GPU_STATUS == 0) |
672 | HW_GPU_STATUS = GPU_readStatus(); | |
ef79bbde P |
673 | |
674 | // spu | |
496d88d4 | 675 | SaveFuncs.read(f, &Size, 4); |
ef79bbde | 676 | spufP = (SPUFreeze_t *)malloc(Size); |
496d88d4 | 677 | SaveFuncs.read(f, spufP, Size); |
650adfd2 | 678 | SPU_freeze(0, spufP, psxRegs.cycle); |
ef79bbde P |
679 | free(spufP); |
680 | ||
681 | sioFreeze(f, 0); | |
682 | cdrFreeze(f, 0); | |
683 | psxHwFreeze(f, 0); | |
684 | psxRcntFreeze(f, 0); | |
685 | mdecFreeze(f, 0); | |
03f55e6b | 686 | new_dyna_freeze(f, 0); |
ef79bbde | 687 | |
496d88d4 | 688 | SaveFuncs.close(f); |
ef79bbde P |
689 | |
690 | return 0; | |
691 | } | |
692 | ||
693 | int CheckState(const char *file) { | |
496d88d4 | 694 | void *f; |
ef79bbde P |
695 | char header[32]; |
696 | u32 version; | |
697 | boolean hle; | |
698 | ||
496d88d4 | 699 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
700 | if (f == NULL) return -1; |
701 | ||
496d88d4 | 702 | SaveFuncs.read(f, header, sizeof(header)); |
703 | SaveFuncs.read(f, &version, sizeof(u32)); | |
704 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 705 | |
496d88d4 | 706 | SaveFuncs.close(f); |
ef79bbde | 707 | |
33f56da1 | 708 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
ef79bbde P |
709 | return -1; |
710 | ||
711 | return 0; | |
712 | } | |
713 | ||
714 | // NET Function Helpers | |
715 | ||
716 | int SendPcsxInfo() { | |
717 | if (NET_recvData == NULL || NET_sendData == NULL) | |
718 | return 0; | |
719 | ||
720 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
721 | NET_sendData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
722 | NET_sendData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
723 | NET_sendData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
724 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
725 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
726 | ||
727 | return 0; | |
728 | } | |
729 | ||
730 | int RecvPcsxInfo() { | |
731 | int tmp; | |
732 | ||
733 | if (NET_recvData == NULL || NET_sendData == NULL) | |
734 | return 0; | |
735 | ||
736 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); | |
737 | NET_recvData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING); | |
738 | NET_recvData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING); | |
739 | NET_recvData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING); | |
740 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); | |
741 | ||
742 | SysUpdate(); | |
743 | ||
744 | tmp = Config.Cpu; | |
745 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
746 | if (tmp != Config.Cpu) { | |
747 | psxCpu->Shutdown(); | |
41e82ad4 | 748 | #ifndef DRC_DISABLE |
ef79bbde P |
749 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
750 | else psxCpu = &psxRec; | |
751 | #else | |
752 | psxCpu = &psxInt; | |
753 | #endif | |
754 | if (psxCpu->Init() == -1) { | |
755 | SysClose(); return -1; | |
756 | } | |
757 | psxCpu->Reset(); | |
758 | } | |
759 | ||
760 | return 0; | |
761 | } | |
762 | ||
763 | // remove the leading and trailing spaces in a string | |
764 | void trim(char *str) { | |
765 | int pos = 0; | |
766 | char *dest = str; | |
767 | ||
768 | // skip leading blanks | |
769 | while (str[pos] <= ' ' && str[pos] > 0) | |
770 | pos++; | |
771 | ||
772 | while (str[pos]) { | |
773 | *(dest++) = str[pos]; | |
774 | pos++; | |
775 | } | |
776 | ||
777 | *(dest--) = '\0'; // store the null | |
778 | ||
779 | // remove trailing blanks | |
780 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
781 | *(dest--) = '\0'; | |
782 | } | |
783 | ||
784 | // lookup table for crc calculation | |
785 | static unsigned short crctab[256] = { | |
786 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
787 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
788 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
789 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
790 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
791 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
792 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
793 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
794 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
795 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
796 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
797 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
798 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
799 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
800 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
801 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
802 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
803 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
804 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
805 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
806 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
807 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
808 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
809 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
810 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
811 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
812 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
813 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
814 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
815 | }; | |
816 | ||
817 | u16 calcCrc(u8 *d, int len) { | |
818 | u16 crc = 0; | |
819 | int i; | |
820 | ||
821 | for (i = 0; i < len; i++) { | |
822 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
823 | } | |
824 | ||
825 | return ~crc; | |
826 | } |