notaz.gp2x.de / picodrive.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Makefile adjustment
[picodrive.git] / platform / common / emu.c
CommitLineData
ea8c405f 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
1820b5a7 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
ea8c405f 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
c6196c0f 140/* check if the name begins with BIOS name */\r
141static int emu_isBios(const char *name)\r
142{\r
143 int i;\r
144 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
145 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
146 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
147 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
148 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
149 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
150 return 0;\r
151}\r
152\r
ea8c405f 153/* checks if romFileName points to valid MegaCD image\r
154 * if so, checks for suitable BIOS */\r
155int emu_cdCheck(int *pregion)\r
156{\r
157 unsigned char buf[32];\r
158 pm_file *cd_f;\r
159 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
160\r
161 cd_f = pm_open(romFileName);\r
162 if (!cd_f) return 0; // let the upper level handle this\r
163\r
164 if (pm_read(buf, 32, cd_f) != 32) {\r
165 pm_close(cd_f);\r
166 return 0;\r
167 }\r
168\r
169 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
170 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
171 if (type == 0) {\r
172 pm_close(cd_f);\r
173 return 0;\r
174 }\r
175\r
176 /* it seems we have a CD image here. Try to detect region now.. */\r
177 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
178 pm_read(buf, 1, cd_f);\r
179 pm_close(cd_f);\r
180\r
181 if (buf[0] == 0x64) region = 8; // EU\r
182 if (buf[0] == 0xa1) region = 1; // JAP\r
183\r
184 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
185 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
186\r
187 if (pregion != NULL) *pregion = region;\r
188\r
189 return type;\r
190}\r
191\r
192int emu_ReloadRom(void)\r
193{\r
194 unsigned int rom_size = 0;\r
195 char *used_rom_name = romFileName;\r
196 char ext[5];\r
197 pm_file *rom;\r
198 int ret, cd_state, cd_region, cfg_loaded = 0;\r
199\r
200 lprintf("emu_ReloadRom(%s)\n", romFileName);\r
201\r
202 get_ext(romFileName, ext);\r
203\r
204 // detect wrong extensions\r
205 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
206 sprintf(menuErrorMsg, "Not a ROM selected.");\r
207 return 0;\r
208 }\r
209\r
210 PicoPatchUnload();\r
211\r
212 // check for movie file\r
213 if(movie_data) {\r
214 free(movie_data);\r
215 movie_data = 0;\r
216 }\r
217 if(!strcmp(ext, ".gmv")) {\r
218 // check for both gmv and rom\r
219 int dummy;\r
220 FILE *movie_file = fopen(romFileName, "rb");\r
221 if(!movie_file) {\r
222 sprintf(menuErrorMsg, "Failed to open movie.");\r
223 return 0;\r
224 }\r
225 fseek(movie_file, 0, SEEK_END);\r
226 movie_size = ftell(movie_file);\r
227 fseek(movie_file, 0, SEEK_SET);\r
228 if(movie_size < 64+3) {\r
229 sprintf(menuErrorMsg, "Invalid GMV file.");\r
230 fclose(movie_file);\r
231 return 0;\r
232 }\r
233 movie_data = malloc(movie_size);\r
234 if(movie_data == NULL) {\r
235 sprintf(menuErrorMsg, "low memory.");\r
236 fclose(movie_file);\r
237 return 0;\r
238 }\r
239 fread(movie_data, 1, movie_size, movie_file);\r
240 fclose(movie_file);\r
241 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
242 sprintf(menuErrorMsg, "Invalid GMV file.");\r
243 return 0;\r
244 }\r
245 dummy = try_rfn_cut() || try_rfn_cut();\r
246 if (!dummy) {\r
247 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
248 return 0;\r
249 }\r
250 get_ext(romFileName, ext);\r
251 }\r
252 else if (!strcmp(ext, ".pat")) {\r
253 int dummy;\r
254 PicoPatchLoad(romFileName);\r
255 dummy = try_rfn_cut() || try_rfn_cut();\r
256 if (!dummy) {\r
257 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
258 return 0;\r
259 }\r
260 get_ext(romFileName, ext);\r
261 }\r
262\r
263 if ((PicoMCD & 1) && Pico_mcd != NULL)\r
264 Stop_CD();\r
265\r
266 // check for MegaCD image\r
267 cd_state = emu_cdCheck(&cd_region);\r
268 if (cd_state > 0)\r
269 {\r
270 // valid CD image, check for BIOS..\r
271\r
272 // we need to have config loaded at this point\r
273 ret = emu_ReadConfig(1, 1);\r
274 if (!ret) emu_ReadConfig(0, 1);\r
275 cfg_loaded = 1;\r
276\r
277 if (PicoRegionOverride) {\r
278 cd_region = PicoRegionOverride;\r
279 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");\r
280 }\r
281 if (!emu_findBios(cd_region, &used_rom_name)) {\r
282 // bios_help() ?\r
283 return 0;\r
284 }\r
285\r
286 PicoMCD |= 1;\r
287 get_ext(used_rom_name, ext);\r
288 }\r
289 else\r
290 {\r
291 if (PicoMCD & 1) Stop_CD();\r
292 PicoMCD &= ~1;\r
293 }\r
294\r
295 rom = pm_open(used_rom_name);\r
296 if(!rom) {\r
297 sprintf(menuErrorMsg, "Failed to open rom.");\r
298 return 0;\r
299 }\r
300\r
4b167c12 301 menu_romload_prepare(used_rom_name); // also CD load\r
ea8c405f 302\r
303 if(rom_data) {\r
304 free(rom_data);\r
305 rom_data = 0;\r
306 rom_size = 0;\r
307 }\r
308\r
309 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
310 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
311 lprintf("%s\n", menuErrorMsg);\r
312 pm_close(rom);\r
313 menu_romload_end();\r
314 return 0;\r
315 }\r
316 pm_close(rom);\r
ea8c405f 317\r
318 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
319 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
320 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
321 if (rom_data) free(rom_data);\r
322 rom_data = 0;\r
323 sprintf(menuErrorMsg, "Not a ROM selected.");\r
4b167c12 324 menu_romload_end();\r
ea8c405f 325 return 0;\r
326 }\r
327\r
328 // load config for this ROM (do this before insert to get correct region)\r
329 if (!cfg_loaded) {\r
330 ret = emu_ReadConfig(1, 1);\r
331 if (!ret) emu_ReadConfig(0, 1);\r
332 }\r
333\r
334 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
335 if(PicoCartInsert(rom_data, rom_size)) {\r
336 sprintf(menuErrorMsg, "Failed to load ROM.");\r
4b167c12 337 menu_romload_end();\r
ea8c405f 338 return 0;\r
339 }\r
340\r
341 Pico.m.frame_count = 0;\r
342\r
343 // insert CD if it was detected\r
344 if (cd_state > 0) {\r
345 ret = Insert_CD(romFileName, cd_state == 2);\r
346 if (ret != 0) {\r
347 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
348 lprintf("%s\n", menuErrorMsg);\r
4b167c12 349 menu_romload_end();\r
ea8c405f 350 return 0;\r
351 }\r
352 }\r
353\r
4b167c12 354 menu_romload_end();\r
355\r
c6196c0f 356 if (!emu_isBios(romFileName))\r
357 {\r
358 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
359 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
360 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
361 }\r
ea8c405f 362\r
363 if (PicoPatches) {\r
364 PicoPatchPrepare();\r
365 PicoPatchApply();\r
366 }\r
367\r
368 // additional movie stuff\r
369 if (movie_data) {\r
370 if(movie_data[0x14] == '6')\r
371 PicoOpt |= 0x20; // 6 button pad\r
372 else PicoOpt &= ~0x20;\r
373 PicoOpt |= 0x10040; // accurate timing, no VDP fifo timing\r
374 if(movie_data[0xF] >= 'A') {\r
375 if(movie_data[0x16] & 0x80) {\r
376 PicoRegionOverride = 8;\r
377 } else {\r
378 PicoRegionOverride = 4;\r
379 }\r
380 PicoReset(0);\r
381 // TODO: bits 6 & 5\r
382 }\r
383 movie_data[0x18+30] = 0;\r
384 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
385 }\r
386 else\r
387 {\r
388 PicoOpt &= ~0x10000;\r
389 if(Pico.m.pal) {\r
390 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
391 } else {\r
392 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
393 }\r
394 }\r
395 emu_noticeMsgUpdated();\r
396\r
397 // load SRAM for this ROM\r
398 if(currentConfig.EmuOpt & 1)\r
399 emu_SaveLoadGame(1, 1);\r
400\r
401 return 1;\r
402}\r
403\r
404\r
405static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
406{\r
407 char *p;\r
408 int prefix_len = 0;\r
409\r
410 // make save filename\r
411 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
412 *dst = 0;\r
413 if (prefix) {\r
414 strcpy(dst, prefix);\r
415 prefix_len = strlen(prefix);\r
416 }\r
417 strncpy(dst + prefix_len, p, 511-prefix_len);\r
418 dst[511-8] = 0;\r
419 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
420 if (ext) strcat(dst, ext);\r
421}\r
422\r
423\r
424int emu_ReadConfig(int game, int no_defaults)\r
425{\r
426 FILE *f;\r
427 char cfg[512], extbuf[16];\r
428 int bread = 0;\r
429\r
430 if (!game)\r
431 {\r
432 if (!no_defaults)\r
433 {\r
434 emu_setDefaultConfig();\r
435 }\r
436 strncpy(cfg, PicoConfigFile, 511);\r
437 if (config_slot != 0)\r
438 {\r
439 char *p = strrchr(cfg, '.');\r
440 if (p == NULL) p = cfg + strlen(cfg);\r
441 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
442 strncpy(p, extbuf, 511 - (p - cfg));\r
443 }\r
444 cfg[511] = 0;\r
445 } else {\r
446 if (config_slot != 0)\r
447 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
448 else strcpy(extbuf, ".pbcfg");\r
449 romfname_ext(cfg, "cfg/", extbuf);\r
450 f = fopen(cfg, "rb");\r
451 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
452 else fclose(f);\r
453 }\r
454\r
455 lprintf("emu_ReadConfig: %s ", cfg);\r
456 f = fopen(cfg, "rb");\r
457 if (f) {\r
458 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
459 fclose(f);\r
460 }\r
461 lprintf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
462\r
463 PicoOpt = currentConfig.PicoOpt;\r
464 PsndRate = currentConfig.PsndRate;\r
465 PicoRegionOverride = currentConfig.PicoRegion;\r
466 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
467 PicoCDBuffers = currentConfig.PicoCDBuffers;\r
468 //scaling_update();\r
469 // some sanity checks\r
470 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
2445b7cb 471#ifdef PSP\r
472 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
473#else\r
ea8c405f 474 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
2445b7cb 475#endif\r
ea8c405f 476 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
9839d126 477#ifdef __GP2X__\r
ea8c405f 478 // if volume keys are unbound, bind them to volume control\r
479 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
480 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
481 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
482 }\r
9839d126 483#endif\r
ea8c405f 484 if (bread > 0) config_slot_current = config_slot;\r
485 return (bread > 0); // == sizeof(currentConfig));\r
486}\r
487\r
488\r
489int emu_WriteConfig(int game)\r
490{\r
491 FILE *f;\r
492 char cfg[512], extbuf[16];\r
493 int bwrite = 0;\r
494\r
495 if (!game)\r
496 {\r
497 strncpy(cfg, PicoConfigFile, 511);\r
498 if (config_slot != 0)\r
499 {\r
500 char *p = strrchr(cfg, '.');\r
501 if (p == NULL) p = cfg + strlen(cfg);\r
502 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
503 strncpy(p, extbuf, 511 - (p - cfg));\r
504 }\r
505 cfg[511] = 0;\r
506 } else {\r
507 if (config_slot != 0)\r
508 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
509 else strcpy(extbuf, ".pbcfg");\r
510 romfname_ext(cfg, "cfg/", extbuf);\r
511 }\r
512\r
513 lprintf("emu_WriteConfig: %s ", cfg);\r
514 f = fopen(cfg, "wb");\r
515 if (f) {\r
516 currentConfig.PicoOpt = PicoOpt;\r
517 currentConfig.PsndRate = PsndRate;\r
518 currentConfig.PicoRegion = PicoRegionOverride;\r
519 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
520 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
521 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
522 fflush(f);\r
523 fclose(f);\r
524#ifndef NO_SYNC\r
525 sync();\r
526#endif\r
527 }\r
528 lprintf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
529\r
530 if (bwrite == sizeof(currentConfig)) config_slot_current = config_slot;\r
531 return (bwrite == sizeof(currentConfig));\r
532}\r
533\r
534\r
535void emu_textOut8(int x, int y, const char *text)\r
536{\r
537 int i,l,len=strlen(text);\r
538 unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
539\r
540 /* always using built-in font */\r
541 for (i = 0; i < len; i++)\r
542 {\r
543 for (l=0;l<8;l++)\r
544 {\r
545 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
546 if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;\r
547 if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;\r
548 if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;\r
549 if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;\r
550 if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;\r
551 if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;\r
552 if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;\r
553 if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;\r
554 }\r
555 screen += 8;\r
556 }\r
557}\r
558\r
559void emu_textOut16(int x, int y, const char *text)\r
560{\r
561 int i,l,len=strlen(text);\r
562 unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
563\r
564 for (i = 0; i < len; i++)\r
565 {\r
566 for (l=0;l<8;l++)\r
567 {\r
568 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
569 if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;\r
570 if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;\r
571 if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;\r
572 if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;\r
573 if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;\r
574 if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;\r
575 if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;\r
576 if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;\r
577 }\r
578 screen += 8;\r
579 }\r
580}\r
581\r
582\r
583void emu_updateMovie(void)\r
584{\r
585 int offs = Pico.m.frame_count*3 + 0x40;\r
586 if (offs+3 > movie_size) {\r
587 free(movie_data);\r
588 movie_data = 0;\r
589 strcpy(noticeMsg, "END OF MOVIE.");\r
590 lprintf("END OF MOVIE.\n");\r
591 emu_noticeMsgUpdated();\r
592 } else {\r
593 // MXYZ SACB RLDU\r
594 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
595 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
596 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
597 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
598 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
599 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
600 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
601 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
602 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
603 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
604 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
605 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
606 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
607 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
608 }\r
609}\r
610\r
611\r
612static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
613{\r
614 return gzread(file, p, _n);\r
615}\r
616\r
617\r
618static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
619{\r
620 return gzwrite(file, p, _n);\r
621}\r
622\r
623static int try_ropen_file(const char *fname)\r
624{\r
625 FILE *f;\r
626\r
627 f = fopen(fname, "rb");\r
628 if (f) {\r
629 fclose(f);\r
630 return 1;\r
631 }\r
632 return 0;\r
633}\r
634\r
635char *emu_GetSaveFName(int load, int is_sram, int slot)\r
636{\r
637 static char saveFname[512];\r
638 char ext[16];\r
639\r
640 if (is_sram)\r
641 {\r
642 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
643 if (load) {\r
644 if (try_ropen_file(saveFname)) return saveFname;\r
645 // try in current dir..\r
646 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
647 if (try_ropen_file(saveFname)) return saveFname;\r
648 return NULL; // give up\r
649 }\r
650 }\r
651 else\r
652 {\r
653 ext[0] = 0;\r
654 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
655 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
656\r
657 romfname_ext(saveFname, "mds/", ext);\r
658 if (load) {\r
659 if (try_ropen_file(saveFname)) return saveFname;\r
660 romfname_ext(saveFname, NULL, ext);\r
661 if (try_ropen_file(saveFname)) return saveFname;\r
662 if (currentConfig.EmuOpt & 8) {\r
663 ext[0] = 0;\r
664 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
665 strcat(ext, ".mds");\r
666\r
667 romfname_ext(saveFname, "mds/", ext);\r
668 if (try_ropen_file(saveFname)) return saveFname;\r
669 romfname_ext(saveFname, NULL, ext);\r
670 if (try_ropen_file(saveFname)) return saveFname;\r
671 }\r
672 return NULL;\r
673 }\r
674 }\r
675\r
676 return saveFname;\r
677}\r
678\r
679int emu_checkSaveFile(int slot)\r
680{\r
681 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
682}\r
683\r
684void emu_setSaveStateCbs(int gz)\r
685{\r
686 if (gz) {\r
687 areaRead = gzRead2;\r
688 areaWrite = gzWrite2;\r
689 areaEof = (areaeof *) gzeof;\r
690 areaSeek = (areaseek *) gzseek;\r
691 areaClose = (areaclose *) gzclose;\r
692 } else {\r
693 areaRead = (arearw *) fread;\r
694 areaWrite = (arearw *) fwrite;\r
695 areaEof = (areaeof *) feof;\r
696 areaSeek = (areaseek *) fseek;\r
697 areaClose = (areaclose *) fclose;\r
698 }\r
699}\r
700\r
701int emu_SaveLoadGame(int load, int sram)\r
702{\r
703 int ret = 0;\r
704 char *saveFname;\r
705\r
706 // make save filename\r
707 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
708 if (saveFname == NULL) {\r
709 if (!sram) {\r
710 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
711 emu_noticeMsgUpdated();\r
712 }\r
713 return -1;\r
714 }\r
715\r
716 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
717\r
da42200b 718 if (sram)\r
719 {\r
ea8c405f 720 FILE *sramFile;\r
721 int sram_size;\r
722 unsigned char *sram_data;\r
723 int truncate = 1;\r
724 if (PicoMCD&1) {\r
725 if (PicoOpt&0x8000) { // MCD RAM cart?\r
726 sram_size = 0x12000;\r
727 sram_data = SRam.data;\r
728 if (sram_data)\r
729 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
730 } else {\r
731 sram_size = 0x2000;\r
732 sram_data = Pico_mcd->bram;\r
733 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
734 }\r
735 } else {\r
736 sram_size = SRam.end-SRam.start+1;\r
737 if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
738 sram_data = SRam.data;\r
739 }\r
740 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
741\r
742 if (load) {\r
743 sramFile = fopen(saveFname, "rb");\r
744 if(!sramFile) return -1;\r
745 fread(sram_data, 1, sram_size, sramFile);\r
746 fclose(sramFile);\r
747 if ((PicoMCD&1) && (PicoOpt&0x8000))\r
748 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
749 } else {\r
750 // sram save needs some special processing\r
751 // see if we have anything to save\r
752 for (; sram_size > 0; sram_size--)\r
753 if (sram_data[sram_size-1]) break;\r
754\r
755 if (sram_size) {\r
756 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
757 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
758 if (!sramFile) return -1;\r
759 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
760 ret = (ret != sram_size) ? -1 : 0;\r
761 fclose(sramFile);\r
762#ifndef NO_SYNC\r
763 sync();\r
764#endif\r
765 }\r
766 }\r
767 return ret;\r
768 }\r
769 else\r
770 {\r
771 void *PmovFile = NULL;\r
da42200b 772 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)\r
773 {\r
ea8c405f 774 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
775 emu_setSaveStateCbs(1);\r
da42200b 776 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
ea8c405f 777 }\r
778 }\r
779 else\r
780 {\r
781 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
782 emu_setSaveStateCbs(0);\r
783 }\r
784 }\r
785 if(PmovFile) {\r
786 ret = PmovState(load ? 6 : 5, PmovFile);\r
787 areaClose(PmovFile);\r
788 PmovFile = 0;\r
789 if (load) Pico.m.dirtyPal=1;\r
790#ifndef NO_SYNC\r
791 else sync();\r
792#endif\r
793 }\r
794 else ret = -1;\r
795 if (!ret)\r
796 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
797 else\r
798 {\r
799 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
800 ret = -1;\r
801 }\r
802\r
803 emu_noticeMsgUpdated();\r
804 return ret;\r
805 }\r
806}\r
fast MegaDrive/MegaCD/32X emulator