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psp late-night fixes
[libpicofe.git] / common / emu.c
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f013066e 1// (c) Copyright 2006-2007 notaz, All rights reserved.\r
2// Free for non-commercial use.\r
3\r
4// For commercial use, separate licencing terms must be obtained.\r
5\r
6#include <stdio.h>\r
7#include <stdlib.h>\r
8#include <ctype.h> // tolower\r
9#ifndef NO_SYNC\r
10#include <unistd.h>\r
11#endif\r
12\r
13#include "emu.h"\r
14#include "menu.h"\r
15#include "fonts.h"\r
16#include "lprintf.h"\r
17\r
18#include <Pico/PicoInt.h>\r
19#include <Pico/Patch.h>\r
20#include <zlib/zlib.h>\r
21\r
22#if defined(__GP2X__)\r
23 #include "../gp2x/gp2x.h"\r
24 #define SCREEN_WIDTH 320\r
25 #define SCREEN_BUFFER gp2x_screen\r
26#elif defined(__GIZ__)\r
27 #include "../gizmondo/giz.h"\r
28 #define SCREEN_WIDTH 321\r
2951214e 29 #define SCREEN_BUFFER giz_screen\r
30#elif defined(PSP)\r
31 #include "../psp/psp.h"\r
32 #define SCREEN_WIDTH 512\r
33 #define SCREEN_BUFFER psp_screen\r
f013066e 34#endif\r
35\r
36char *PicoConfigFile = "picoconfig.bin";\r
37currentConfig_t currentConfig;\r
38unsigned char *rom_data = NULL;\r
39char noticeMsg[64];\r
40int state_slot = 0;\r
41int config_slot = 0, config_slot_current = 0;\r
42\r
43unsigned char *movie_data = NULL;\r
44static int movie_size = 0;\r
45\r
46// provided by platform code:\r
47extern char romFileName[];\r
48extern void emu_noticeMsgUpdated(void);\r
49extern void emu_getMainDir(char *dst, int len);\r
50extern void emu_setDefaultConfig(void);\r
51extern void menu_romload_prepare(const char *rom_name);\r
52extern void menu_romload_end(void);\r
53\r
54\r
55// utilities\r
56static void strlwr_(char* string)\r
57{\r
58 while ( (*string++ = (char)tolower(*string)) );\r
59}\r
60\r
61static int try_rfn_cut(void)\r
62{\r
63 FILE *tmp;\r
64 char *p;\r
65\r
66 p = romFileName + strlen(romFileName) - 1;\r
67 for (; p > romFileName; p--)\r
68 if (*p == '.') break;\r
69 *p = 0;\r
70\r
71 if((tmp = fopen(romFileName, "rb"))) {\r
72 fclose(tmp);\r
73 return 1;\r
74 }\r
75 return 0;\r
76}\r
77\r
78static void get_ext(char *file, char *ext)\r
79{\r
80 char *p;\r
81\r
82 p = file + strlen(file) - 4;\r
83 if (p < file) p = file;\r
84 strncpy(ext, p, 4);\r
85 ext[4] = 0;\r
86 strlwr_(ext);\r
87}\r
88\r
89char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
90char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };\r
91char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
92\r
93int emu_findBios(int region, char **bios_file)\r
94{\r
95 static char bios_path[1024];\r
96 int i, count;\r
97 char **files;\r
98 FILE *f = NULL;\r
99\r
100 if (region == 4) { // US\r
101 files = biosfiles_us;\r
102 count = sizeof(biosfiles_us) / sizeof(char *);\r
103 } else if (region == 8) { // EU\r
104 files = biosfiles_eu;\r
105 count = sizeof(biosfiles_eu) / sizeof(char *);\r
106 } else if (region == 1 || region == 2) {\r
107 files = biosfiles_jp;\r
108 count = sizeof(biosfiles_jp) / sizeof(char *);\r
109 } else {\r
110 return 0;\r
111 }\r
112\r
113 for (i = 0; i < count; i++)\r
114 {\r
115 emu_getMainDir(bios_path, sizeof(bios_path));\r
116 strcat(bios_path, files[i]);\r
117 strcat(bios_path, ".bin");\r
118 f = fopen(bios_path, "rb");\r
119 if (f) break;\r
120\r
121 bios_path[strlen(bios_path) - 4] = 0;\r
122 strcat(bios_path, ".zip");\r
123 f = fopen(bios_path, "rb");\r
124 if (f) break;\r
125 }\r
126\r
127 if (f) {\r
128 lprintf("using bios: %s\n", bios_path);\r
129 fclose(f);\r
130 if (bios_file) *bios_file = bios_path;\r
131 return 1;\r
132 } else {\r
133 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
134 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
135 lprintf("%s\n", menuErrorMsg);\r
136 return 0;\r
137 }\r
138}\r
139\r
140/* checks if romFileName points to valid MegaCD image\r
141 * if so, checks for suitable BIOS */\r
142int emu_cdCheck(int *pregion)\r
143{\r
144 unsigned char buf[32];\r
145 pm_file *cd_f;\r
146 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
147\r
148 cd_f = pm_open(romFileName);\r
149 if (!cd_f) return 0; // let the upper level handle this\r
150\r
151 if (pm_read(buf, 32, cd_f) != 32) {\r
152 pm_close(cd_f);\r
153 return 0;\r
154 }\r
155\r
156 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
157 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
158 if (type == 0) {\r
159 pm_close(cd_f);\r
160 return 0;\r
161 }\r
162\r
163 /* it seems we have a CD image here. Try to detect region now.. */\r
164 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
165 pm_read(buf, 1, cd_f);\r
166 pm_close(cd_f);\r
167\r
168 if (buf[0] == 0x64) region = 8; // EU\r
169 if (buf[0] == 0xa1) region = 1; // JAP\r
170\r
171 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
172 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
173\r
174 if (pregion != NULL) *pregion = region;\r
175\r
176 return type;\r
177}\r
178\r
179int emu_ReloadRom(void)\r
180{\r
181 unsigned int rom_size = 0;\r
182 char *used_rom_name = romFileName;\r
183 char ext[5];\r
184 pm_file *rom;\r
185 int ret, cd_state, cd_region, cfg_loaded = 0;\r
186\r
187 lprintf("emu_ReloadRom(%s)\n", romFileName);\r
188\r
189 get_ext(romFileName, ext);\r
190\r
191 // detect wrong extensions\r
192 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
193 sprintf(menuErrorMsg, "Not a ROM selected.");\r
194 return 0;\r
195 }\r
196\r
197 PicoPatchUnload();\r
198\r
199 // check for movie file\r
200 if(movie_data) {\r
201 free(movie_data);\r
202 movie_data = 0;\r
203 }\r
204 if(!strcmp(ext, ".gmv")) {\r
205 // check for both gmv and rom\r
206 int dummy;\r
207 FILE *movie_file = fopen(romFileName, "rb");\r
208 if(!movie_file) {\r
209 sprintf(menuErrorMsg, "Failed to open movie.");\r
210 return 0;\r
211 }\r
212 fseek(movie_file, 0, SEEK_END);\r
213 movie_size = ftell(movie_file);\r
214 fseek(movie_file, 0, SEEK_SET);\r
215 if(movie_size < 64+3) {\r
216 sprintf(menuErrorMsg, "Invalid GMV file.");\r
217 fclose(movie_file);\r
218 return 0;\r
219 }\r
220 movie_data = malloc(movie_size);\r
221 if(movie_data == NULL) {\r
222 sprintf(menuErrorMsg, "low memory.");\r
223 fclose(movie_file);\r
224 return 0;\r
225 }\r
226 fread(movie_data, 1, movie_size, movie_file);\r
227 fclose(movie_file);\r
228 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
229 sprintf(menuErrorMsg, "Invalid GMV file.");\r
230 return 0;\r
231 }\r
232 dummy = try_rfn_cut() || try_rfn_cut();\r
233 if (!dummy) {\r
234 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
235 return 0;\r
236 }\r
237 get_ext(romFileName, ext);\r
238 }\r
239 else if (!strcmp(ext, ".pat")) {\r
240 int dummy;\r
241 PicoPatchLoad(romFileName);\r
242 dummy = try_rfn_cut() || try_rfn_cut();\r
243 if (!dummy) {\r
244 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
245 return 0;\r
246 }\r
247 get_ext(romFileName, ext);\r
248 }\r
249\r
250 if ((PicoMCD & 1) && Pico_mcd != NULL)\r
251 Stop_CD();\r
252\r
253 // check for MegaCD image\r
254 cd_state = emu_cdCheck(&cd_region);\r
255 if (cd_state > 0)\r
256 {\r
257 // valid CD image, check for BIOS..\r
258\r
259 // we need to have config loaded at this point\r
260 ret = emu_ReadConfig(1, 1);\r
261 if (!ret) emu_ReadConfig(0, 1);\r
262 cfg_loaded = 1;\r
263\r
264 if (PicoRegionOverride) {\r
265 cd_region = PicoRegionOverride;\r
266 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");\r
267 }\r
268 if (!emu_findBios(cd_region, &used_rom_name)) {\r
269 // bios_help() ?\r
270 return 0;\r
271 }\r
272\r
273 PicoMCD |= 1;\r
274 get_ext(used_rom_name, ext);\r
275 }\r
276 else\r
277 {\r
278 if (PicoMCD & 1) Stop_CD();\r
279 PicoMCD &= ~1;\r
280 }\r
281\r
282 rom = pm_open(used_rom_name);\r
283 if(!rom) {\r
284 sprintf(menuErrorMsg, "Failed to open rom.");\r
285 return 0;\r
286 }\r
287\r
a6df06b7 288 menu_romload_prepare(used_rom_name); // also CD load\r
f013066e 289\r
290 if(rom_data) {\r
291 free(rom_data);\r
292 rom_data = 0;\r
293 rom_size = 0;\r
294 }\r
295\r
296 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
297 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
298 lprintf("%s\n", menuErrorMsg);\r
299 pm_close(rom);\r
300 menu_romload_end();\r
301 return 0;\r
302 }\r
303 pm_close(rom);\r
f013066e 304\r
305 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
306 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
307 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
308 if (rom_data) free(rom_data);\r
309 rom_data = 0;\r
310 sprintf(menuErrorMsg, "Not a ROM selected.");\r
a6df06b7 311 menu_romload_end();\r
f013066e 312 return 0;\r
313 }\r
314\r
315 // load config for this ROM (do this before insert to get correct region)\r
316 if (!cfg_loaded) {\r
317 ret = emu_ReadConfig(1, 1);\r
318 if (!ret) emu_ReadConfig(0, 1);\r
319 }\r
320\r
321 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
322 if(PicoCartInsert(rom_data, rom_size)) {\r
323 sprintf(menuErrorMsg, "Failed to load ROM.");\r
a6df06b7 324 menu_romload_end();\r
f013066e 325 return 0;\r
326 }\r
327\r
328 Pico.m.frame_count = 0;\r
329\r
330 // insert CD if it was detected\r
331 if (cd_state > 0) {\r
332 ret = Insert_CD(romFileName, cd_state == 2);\r
333 if (ret != 0) {\r
334 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
335 lprintf("%s\n", menuErrorMsg);\r
a6df06b7 336 menu_romload_end();\r
f013066e 337 return 0;\r
338 }\r
339 }\r
340\r
a6df06b7 341 menu_romload_end();\r
342\r
f013066e 343 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
344 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
345 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
346\r
347 if (PicoPatches) {\r
348 PicoPatchPrepare();\r
349 PicoPatchApply();\r
350 }\r
351\r
352 // additional movie stuff\r
353 if (movie_data) {\r
354 if(movie_data[0x14] == '6')\r
355 PicoOpt |= 0x20; // 6 button pad\r
356 else PicoOpt &= ~0x20;\r
357 PicoOpt |= 0x10040; // accurate timing, no VDP fifo timing\r
358 if(movie_data[0xF] >= 'A') {\r
359 if(movie_data[0x16] & 0x80) {\r
360 PicoRegionOverride = 8;\r
361 } else {\r
362 PicoRegionOverride = 4;\r
363 }\r
364 PicoReset(0);\r
365 // TODO: bits 6 & 5\r
366 }\r
367 movie_data[0x18+30] = 0;\r
368 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
369 }\r
370 else\r
371 {\r
372 PicoOpt &= ~0x10000;\r
373 if(Pico.m.pal) {\r
374 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
375 } else {\r
376 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
377 }\r
378 }\r
379 emu_noticeMsgUpdated();\r
380\r
381 // load SRAM for this ROM\r
382 if(currentConfig.EmuOpt & 1)\r
383 emu_SaveLoadGame(1, 1);\r
384\r
385 return 1;\r
386}\r
387\r
388\r
389static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
390{\r
391 char *p;\r
392 int prefix_len = 0;\r
393\r
394 // make save filename\r
395 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
396 *dst = 0;\r
397 if (prefix) {\r
398 strcpy(dst, prefix);\r
399 prefix_len = strlen(prefix);\r
400 }\r
401 strncpy(dst + prefix_len, p, 511-prefix_len);\r
402 dst[511-8] = 0;\r
403 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
404 if (ext) strcat(dst, ext);\r
405}\r
406\r
407\r
408int emu_ReadConfig(int game, int no_defaults)\r
409{\r
410 FILE *f;\r
411 char cfg[512], extbuf[16];\r
412 int bread = 0;\r
413\r
414 if (!game)\r
415 {\r
416 if (!no_defaults)\r
417 {\r
418 emu_setDefaultConfig();\r
419 }\r
420 strncpy(cfg, PicoConfigFile, 511);\r
421 if (config_slot != 0)\r
422 {\r
423 char *p = strrchr(cfg, '.');\r
424 if (p == NULL) p = cfg + strlen(cfg);\r
425 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
426 strncpy(p, extbuf, 511 - (p - cfg));\r
427 }\r
428 cfg[511] = 0;\r
429 } else {\r
430 if (config_slot != 0)\r
431 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
432 else strcpy(extbuf, ".pbcfg");\r
433 romfname_ext(cfg, "cfg/", extbuf);\r
434 f = fopen(cfg, "rb");\r
435 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
436 else fclose(f);\r
437 }\r
438\r
439 lprintf("emu_ReadConfig: %s ", cfg);\r
440 f = fopen(cfg, "rb");\r
441 if (f) {\r
442 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
443 fclose(f);\r
444 }\r
445 lprintf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
446\r
447 PicoOpt = currentConfig.PicoOpt;\r
448 PsndRate = currentConfig.PsndRate;\r
449 PicoRegionOverride = currentConfig.PicoRegion;\r
450 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
451 PicoCDBuffers = currentConfig.PicoCDBuffers;\r
452 //scaling_update();\r
453 // some sanity checks\r
454 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
455 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
456 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
8ede36b9 457#ifdef __GP2X__\r
f013066e 458 // if volume keys are unbound, bind them to volume control\r
459 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
460 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
461 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
462 }\r
8ede36b9 463#endif\r
f013066e 464 if (bread > 0) config_slot_current = config_slot;\r
465 return (bread > 0); // == sizeof(currentConfig));\r
466}\r
467\r
468\r
469int emu_WriteConfig(int game)\r
470{\r
471 FILE *f;\r
472 char cfg[512], extbuf[16];\r
473 int bwrite = 0;\r
474\r
475 if (!game)\r
476 {\r
477 strncpy(cfg, PicoConfigFile, 511);\r
478 if (config_slot != 0)\r
479 {\r
480 char *p = strrchr(cfg, '.');\r
481 if (p == NULL) p = cfg + strlen(cfg);\r
482 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
483 strncpy(p, extbuf, 511 - (p - cfg));\r
484 }\r
485 cfg[511] = 0;\r
486 } else {\r
487 if (config_slot != 0)\r
488 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
489 else strcpy(extbuf, ".pbcfg");\r
490 romfname_ext(cfg, "cfg/", extbuf);\r
491 }\r
492\r
493 lprintf("emu_WriteConfig: %s ", cfg);\r
494 f = fopen(cfg, "wb");\r
495 if (f) {\r
496 currentConfig.PicoOpt = PicoOpt;\r
497 currentConfig.PsndRate = PsndRate;\r
498 currentConfig.PicoRegion = PicoRegionOverride;\r
499 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
500 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
501 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
502 fflush(f);\r
503 fclose(f);\r
504#ifndef NO_SYNC\r
505 sync();\r
506#endif\r
507 }\r
508 lprintf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
509\r
510 if (bwrite == sizeof(currentConfig)) config_slot_current = config_slot;\r
511 return (bwrite == sizeof(currentConfig));\r
512}\r
513\r
514\r
515void emu_textOut8(int x, int y, const char *text)\r
516{\r
517 int i,l,len=strlen(text);\r
518 unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
519\r
520 /* always using built-in font */\r
521 for (i = 0; i < len; i++)\r
522 {\r
523 for (l=0;l<8;l++)\r
524 {\r
525 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
526 if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;\r
527 if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;\r
528 if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;\r
529 if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;\r
530 if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;\r
531 if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;\r
532 if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;\r
533 if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;\r
534 }\r
535 screen += 8;\r
536 }\r
537}\r
538\r
539void emu_textOut16(int x, int y, const char *text)\r
540{\r
541 int i,l,len=strlen(text);\r
542 unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
543\r
544 for (i = 0; i < len; i++)\r
545 {\r
546 for (l=0;l<8;l++)\r
547 {\r
548 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
549 if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;\r
550 if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;\r
551 if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;\r
552 if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;\r
553 if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;\r
554 if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;\r
555 if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;\r
556 if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;\r
557 }\r
558 screen += 8;\r
559 }\r
560}\r
561\r
562\r
563void emu_updateMovie(void)\r
564{\r
565 int offs = Pico.m.frame_count*3 + 0x40;\r
566 if (offs+3 > movie_size) {\r
567 free(movie_data);\r
568 movie_data = 0;\r
569 strcpy(noticeMsg, "END OF MOVIE.");\r
570 lprintf("END OF MOVIE.\n");\r
571 emu_noticeMsgUpdated();\r
572 } else {\r
573 // MXYZ SACB RLDU\r
574 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
575 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
576 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
577 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
578 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
579 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
580 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
581 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
582 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
583 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
584 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
585 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
586 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
587 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
588 }\r
589}\r
590\r
591\r
592static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
593{\r
594 return gzread(file, p, _n);\r
595}\r
596\r
597\r
598static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
599{\r
600 return gzwrite(file, p, _n);\r
601}\r
602\r
603static int try_ropen_file(const char *fname)\r
604{\r
605 FILE *f;\r
606\r
607 f = fopen(fname, "rb");\r
608 if (f) {\r
609 fclose(f);\r
610 return 1;\r
611 }\r
612 return 0;\r
613}\r
614\r
615char *emu_GetSaveFName(int load, int is_sram, int slot)\r
616{\r
617 static char saveFname[512];\r
618 char ext[16];\r
619\r
620 if (is_sram)\r
621 {\r
622 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
623 if (load) {\r
624 if (try_ropen_file(saveFname)) return saveFname;\r
625 // try in current dir..\r
626 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
627 if (try_ropen_file(saveFname)) return saveFname;\r
628 return NULL; // give up\r
629 }\r
630 }\r
631 else\r
632 {\r
633 ext[0] = 0;\r
634 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
635 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
636\r
637 romfname_ext(saveFname, "mds/", ext);\r
638 if (load) {\r
639 if (try_ropen_file(saveFname)) return saveFname;\r
640 romfname_ext(saveFname, NULL, ext);\r
641 if (try_ropen_file(saveFname)) return saveFname;\r
642 if (currentConfig.EmuOpt & 8) {\r
643 ext[0] = 0;\r
644 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
645 strcat(ext, ".mds");\r
646\r
647 romfname_ext(saveFname, "mds/", ext);\r
648 if (try_ropen_file(saveFname)) return saveFname;\r
649 romfname_ext(saveFname, NULL, ext);\r
650 if (try_ropen_file(saveFname)) return saveFname;\r
651 }\r
652 return NULL;\r
653 }\r
654 }\r
655\r
656 return saveFname;\r
657}\r
658\r
659int emu_checkSaveFile(int slot)\r
660{\r
661 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
662}\r
663\r
664void emu_setSaveStateCbs(int gz)\r
665{\r
666 if (gz) {\r
667 areaRead = gzRead2;\r
668 areaWrite = gzWrite2;\r
669 areaEof = (areaeof *) gzeof;\r
670 areaSeek = (areaseek *) gzseek;\r
671 areaClose = (areaclose *) gzclose;\r
672 } else {\r
673 areaRead = (arearw *) fread;\r
674 areaWrite = (arearw *) fwrite;\r
675 areaEof = (areaeof *) feof;\r
676 areaSeek = (areaseek *) fseek;\r
677 areaClose = (areaclose *) fclose;\r
678 }\r
679}\r
680\r
681int emu_SaveLoadGame(int load, int sram)\r
682{\r
683 int ret = 0;\r
684 char *saveFname;\r
685\r
686 // make save filename\r
687 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
688 if (saveFname == NULL) {\r
689 if (!sram) {\r
690 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
691 emu_noticeMsgUpdated();\r
692 }\r
693 return -1;\r
694 }\r
695\r
696 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
697\r
11f4e722 698 if (sram)\r
699 {\r
f013066e 700 FILE *sramFile;\r
701 int sram_size;\r
702 unsigned char *sram_data;\r
703 int truncate = 1;\r
704 if (PicoMCD&1) {\r
705 if (PicoOpt&0x8000) { // MCD RAM cart?\r
706 sram_size = 0x12000;\r
707 sram_data = SRam.data;\r
708 if (sram_data)\r
709 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
710 } else {\r
711 sram_size = 0x2000;\r
712 sram_data = Pico_mcd->bram;\r
713 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
714 }\r
715 } else {\r
716 sram_size = SRam.end-SRam.start+1;\r
717 if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
718 sram_data = SRam.data;\r
719 }\r
720 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
721\r
722 if (load) {\r
723 sramFile = fopen(saveFname, "rb");\r
724 if(!sramFile) return -1;\r
725 fread(sram_data, 1, sram_size, sramFile);\r
726 fclose(sramFile);\r
727 if ((PicoMCD&1) && (PicoOpt&0x8000))\r
728 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
729 } else {\r
730 // sram save needs some special processing\r
731 // see if we have anything to save\r
732 for (; sram_size > 0; sram_size--)\r
733 if (sram_data[sram_size-1]) break;\r
734\r
735 if (sram_size) {\r
736 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
737 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
738 if (!sramFile) return -1;\r
739 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
740 ret = (ret != sram_size) ? -1 : 0;\r
741 fclose(sramFile);\r
742#ifndef NO_SYNC\r
743 sync();\r
744#endif\r
745 }\r
746 }\r
747 return ret;\r
748 }\r
749 else\r
750 {\r
751 void *PmovFile = NULL;\r
11f4e722 752 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)\r
753 {\r
f013066e 754 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
755 emu_setSaveStateCbs(1);\r
11f4e722 756 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
f013066e 757 }\r
758 }\r
759 else\r
760 {\r
761 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
762 emu_setSaveStateCbs(0);\r
763 }\r
764 }\r
765 if(PmovFile) {\r
766 ret = PmovState(load ? 6 : 5, PmovFile);\r
767 areaClose(PmovFile);\r
768 PmovFile = 0;\r
769 if (load) Pico.m.dirtyPal=1;\r
770#ifndef NO_SYNC\r
771 else sync();\r
772#endif\r
773 }\r
774 else ret = -1;\r
775 if (!ret)\r
776 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
777 else\r
778 {\r
779 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
780 ret = -1;\r
781 }\r
782\r
783 emu_noticeMsgUpdated();\r
784 return ret;\r
785 }\r
786}\r
PicoDrive's frontend in a lib