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UI adjustments, nub support
[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
288 menu_romload_prepare(used_rom_name);\r
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
304 menu_romload_end();\r
305\r
306 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
307 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
308 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
309 if (rom_data) free(rom_data);\r
310 rom_data = 0;\r
311 sprintf(menuErrorMsg, "Not a ROM selected.");\r
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
324 return 0;\r
325 }\r
326\r
327 Pico.m.frame_count = 0;\r
328\r
329 // insert CD if it was detected\r
330 if (cd_state > 0) {\r
331 ret = Insert_CD(romFileName, cd_state == 2);\r
332 if (ret != 0) {\r
333 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
334 lprintf("%s\n", menuErrorMsg);\r
335 return 0;\r
336 }\r
337 }\r
338\r
339 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
340 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
341 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
342\r
343 if (PicoPatches) {\r
344 PicoPatchPrepare();\r
345 PicoPatchApply();\r
346 }\r
347\r
348 // additional movie stuff\r
349 if (movie_data) {\r
350 if(movie_data[0x14] == '6')\r
351 PicoOpt |= 0x20; // 6 button pad\r
352 else PicoOpt &= ~0x20;\r
353 PicoOpt |= 0x10040; // accurate timing, no VDP fifo timing\r
354 if(movie_data[0xF] >= 'A') {\r
355 if(movie_data[0x16] & 0x80) {\r
356 PicoRegionOverride = 8;\r
357 } else {\r
358 PicoRegionOverride = 4;\r
359 }\r
360 PicoReset(0);\r
361 // TODO: bits 6 & 5\r
362 }\r
363 movie_data[0x18+30] = 0;\r
364 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
365 }\r
366 else\r
367 {\r
368 PicoOpt &= ~0x10000;\r
369 if(Pico.m.pal) {\r
370 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
371 } else {\r
372 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
373 }\r
374 }\r
375 emu_noticeMsgUpdated();\r
376\r
377 // load SRAM for this ROM\r
378 if(currentConfig.EmuOpt & 1)\r
379 emu_SaveLoadGame(1, 1);\r
380\r
381 return 1;\r
382}\r
383\r
384\r
385static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
386{\r
387 char *p;\r
388 int prefix_len = 0;\r
389\r
390 // make save filename\r
391 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
392 *dst = 0;\r
393 if (prefix) {\r
394 strcpy(dst, prefix);\r
395 prefix_len = strlen(prefix);\r
396 }\r
397 strncpy(dst + prefix_len, p, 511-prefix_len);\r
398 dst[511-8] = 0;\r
399 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
400 if (ext) strcat(dst, ext);\r
401}\r
402\r
403\r
404int emu_ReadConfig(int game, int no_defaults)\r
405{\r
406 FILE *f;\r
407 char cfg[512], extbuf[16];\r
408 int bread = 0;\r
409\r
410 if (!game)\r
411 {\r
412 if (!no_defaults)\r
413 {\r
414 emu_setDefaultConfig();\r
415 }\r
416 strncpy(cfg, PicoConfigFile, 511);\r
417 if (config_slot != 0)\r
418 {\r
419 char *p = strrchr(cfg, '.');\r
420 if (p == NULL) p = cfg + strlen(cfg);\r
421 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
422 strncpy(p, extbuf, 511 - (p - cfg));\r
423 }\r
424 cfg[511] = 0;\r
425 } else {\r
426 if (config_slot != 0)\r
427 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
428 else strcpy(extbuf, ".pbcfg");\r
429 romfname_ext(cfg, "cfg/", extbuf);\r
430 f = fopen(cfg, "rb");\r
431 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
432 else fclose(f);\r
433 }\r
434\r
435 lprintf("emu_ReadConfig: %s ", cfg);\r
436 f = fopen(cfg, "rb");\r
437 if (f) {\r
438 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
439 fclose(f);\r
440 }\r
441 lprintf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
442\r
443 PicoOpt = currentConfig.PicoOpt;\r
444 PsndRate = currentConfig.PsndRate;\r
445 PicoRegionOverride = currentConfig.PicoRegion;\r
446 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
447 PicoCDBuffers = currentConfig.PicoCDBuffers;\r
448 //scaling_update();\r
449 // some sanity checks\r
450 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
451 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
452 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
8ede36b9 453#ifdef __GP2X__\r
f013066e 454 // if volume keys are unbound, bind them to volume control\r
455 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
456 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
457 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
458 }\r
8ede36b9 459#endif\r
f013066e 460 if (bread > 0) config_slot_current = config_slot;\r
461 return (bread > 0); // == sizeof(currentConfig));\r
462}\r
463\r
464\r
465int emu_WriteConfig(int game)\r
466{\r
467 FILE *f;\r
468 char cfg[512], extbuf[16];\r
469 int bwrite = 0;\r
470\r
471 if (!game)\r
472 {\r
473 strncpy(cfg, PicoConfigFile, 511);\r
474 if (config_slot != 0)\r
475 {\r
476 char *p = strrchr(cfg, '.');\r
477 if (p == NULL) p = cfg + strlen(cfg);\r
478 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
479 strncpy(p, extbuf, 511 - (p - cfg));\r
480 }\r
481 cfg[511] = 0;\r
482 } else {\r
483 if (config_slot != 0)\r
484 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
485 else strcpy(extbuf, ".pbcfg");\r
486 romfname_ext(cfg, "cfg/", extbuf);\r
487 }\r
488\r
489 lprintf("emu_WriteConfig: %s ", cfg);\r
490 f = fopen(cfg, "wb");\r
491 if (f) {\r
492 currentConfig.PicoOpt = PicoOpt;\r
493 currentConfig.PsndRate = PsndRate;\r
494 currentConfig.PicoRegion = PicoRegionOverride;\r
495 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
496 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
497 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
498 fflush(f);\r
499 fclose(f);\r
500#ifndef NO_SYNC\r
501 sync();\r
502#endif\r
503 }\r
504 lprintf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
505\r
506 if (bwrite == sizeof(currentConfig)) config_slot_current = config_slot;\r
507 return (bwrite == sizeof(currentConfig));\r
508}\r
509\r
510\r
511void emu_textOut8(int x, int y, const char *text)\r
512{\r
513 int i,l,len=strlen(text);\r
514 unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
515\r
516 /* always using built-in font */\r
517 for (i = 0; i < len; i++)\r
518 {\r
519 for (l=0;l<8;l++)\r
520 {\r
521 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
522 if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;\r
523 if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;\r
524 if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;\r
525 if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;\r
526 if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;\r
527 if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;\r
528 if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;\r
529 if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;\r
530 }\r
531 screen += 8;\r
532 }\r
533}\r
534\r
535void emu_textOut16(int x, int y, const char *text)\r
536{\r
537 int i,l,len=strlen(text);\r
538 unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
539\r
540 for (i = 0; i < len; i++)\r
541 {\r
542 for (l=0;l<8;l++)\r
543 {\r
544 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
545 if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;\r
546 if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;\r
547 if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;\r
548 if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;\r
549 if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;\r
550 if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;\r
551 if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;\r
552 if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;\r
553 }\r
554 screen += 8;\r
555 }\r
556}\r
557\r
558\r
559void emu_updateMovie(void)\r
560{\r
561 int offs = Pico.m.frame_count*3 + 0x40;\r
562 if (offs+3 > movie_size) {\r
563 free(movie_data);\r
564 movie_data = 0;\r
565 strcpy(noticeMsg, "END OF MOVIE.");\r
566 lprintf("END OF MOVIE.\n");\r
567 emu_noticeMsgUpdated();\r
568 } else {\r
569 // MXYZ SACB RLDU\r
570 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
571 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
572 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
573 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
574 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
575 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
576 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
577 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
578 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
579 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
580 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
581 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
582 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
583 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
584 }\r
585}\r
586\r
587\r
588static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
589{\r
590 return gzread(file, p, _n);\r
591}\r
592\r
593\r
594static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
595{\r
596 return gzwrite(file, p, _n);\r
597}\r
598\r
599static int try_ropen_file(const char *fname)\r
600{\r
601 FILE *f;\r
602\r
603 f = fopen(fname, "rb");\r
604 if (f) {\r
605 fclose(f);\r
606 return 1;\r
607 }\r
608 return 0;\r
609}\r
610\r
611char *emu_GetSaveFName(int load, int is_sram, int slot)\r
612{\r
613 static char saveFname[512];\r
614 char ext[16];\r
615\r
616 if (is_sram)\r
617 {\r
618 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
619 if (load) {\r
620 if (try_ropen_file(saveFname)) return saveFname;\r
621 // try in current dir..\r
622 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
623 if (try_ropen_file(saveFname)) return saveFname;\r
624 return NULL; // give up\r
625 }\r
626 }\r
627 else\r
628 {\r
629 ext[0] = 0;\r
630 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
631 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
632\r
633 romfname_ext(saveFname, "mds/", ext);\r
634 if (load) {\r
635 if (try_ropen_file(saveFname)) return saveFname;\r
636 romfname_ext(saveFname, NULL, ext);\r
637 if (try_ropen_file(saveFname)) return saveFname;\r
638 if (currentConfig.EmuOpt & 8) {\r
639 ext[0] = 0;\r
640 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
641 strcat(ext, ".mds");\r
642\r
643 romfname_ext(saveFname, "mds/", ext);\r
644 if (try_ropen_file(saveFname)) return saveFname;\r
645 romfname_ext(saveFname, NULL, ext);\r
646 if (try_ropen_file(saveFname)) return saveFname;\r
647 }\r
648 return NULL;\r
649 }\r
650 }\r
651\r
652 return saveFname;\r
653}\r
654\r
655int emu_checkSaveFile(int slot)\r
656{\r
657 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
658}\r
659\r
660void emu_setSaveStateCbs(int gz)\r
661{\r
662 if (gz) {\r
663 areaRead = gzRead2;\r
664 areaWrite = gzWrite2;\r
665 areaEof = (areaeof *) gzeof;\r
666 areaSeek = (areaseek *) gzseek;\r
667 areaClose = (areaclose *) gzclose;\r
668 } else {\r
669 areaRead = (arearw *) fread;\r
670 areaWrite = (arearw *) fwrite;\r
671 areaEof = (areaeof *) feof;\r
672 areaSeek = (areaseek *) fseek;\r
673 areaClose = (areaclose *) fclose;\r
674 }\r
675}\r
676\r
677int emu_SaveLoadGame(int load, int sram)\r
678{\r
679 int ret = 0;\r
680 char *saveFname;\r
681\r
682 // make save filename\r
683 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
684 if (saveFname == NULL) {\r
685 if (!sram) {\r
686 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
687 emu_noticeMsgUpdated();\r
688 }\r
689 return -1;\r
690 }\r
691\r
692 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
693\r
11f4e722 694 if (sram)\r
695 {\r
f013066e 696 FILE *sramFile;\r
697 int sram_size;\r
698 unsigned char *sram_data;\r
699 int truncate = 1;\r
700 if (PicoMCD&1) {\r
701 if (PicoOpt&0x8000) { // MCD RAM cart?\r
702 sram_size = 0x12000;\r
703 sram_data = SRam.data;\r
704 if (sram_data)\r
705 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
706 } else {\r
707 sram_size = 0x2000;\r
708 sram_data = Pico_mcd->bram;\r
709 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
710 }\r
711 } else {\r
712 sram_size = SRam.end-SRam.start+1;\r
713 if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
714 sram_data = SRam.data;\r
715 }\r
716 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
717\r
718 if (load) {\r
719 sramFile = fopen(saveFname, "rb");\r
720 if(!sramFile) return -1;\r
721 fread(sram_data, 1, sram_size, sramFile);\r
722 fclose(sramFile);\r
723 if ((PicoMCD&1) && (PicoOpt&0x8000))\r
724 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
725 } else {\r
726 // sram save needs some special processing\r
727 // see if we have anything to save\r
728 for (; sram_size > 0; sram_size--)\r
729 if (sram_data[sram_size-1]) break;\r
730\r
731 if (sram_size) {\r
732 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
733 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
734 if (!sramFile) return -1;\r
735 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
736 ret = (ret != sram_size) ? -1 : 0;\r
737 fclose(sramFile);\r
738#ifndef NO_SYNC\r
739 sync();\r
740#endif\r
741 }\r
742 }\r
743 return ret;\r
744 }\r
745 else\r
746 {\r
747 void *PmovFile = NULL;\r
11f4e722 748 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)\r
749 {\r
f013066e 750 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
751 emu_setSaveStateCbs(1);\r
11f4e722 752 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
f013066e 753 }\r
754 }\r
755 else\r
756 {\r
757 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
758 emu_setSaveStateCbs(0);\r
759 }\r
760 }\r
761 if(PmovFile) {\r
762 ret = PmovState(load ? 6 : 5, PmovFile);\r
763 areaClose(PmovFile);\r
764 PmovFile = 0;\r
765 if (load) Pico.m.dirtyPal=1;\r
766#ifndef NO_SYNC\r
767 else sync();\r
768#endif\r
769 }\r
770 else ret = -1;\r
771 if (!ret)\r
772 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
773 else\r
774 {\r
775 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
776 ret = -1;\r
777 }\r
778\r
779 emu_noticeMsgUpdated();\r
780 return ret;\r
781 }\r
782}\r
PicoDrive's frontend in a lib