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bugfixes, new config system and messed code for it
[picodrive.git] / platform / common / emu.c
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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
58c86d00 17#include "config.h"\r
ea8c405f 18\r
19#include <Pico/PicoInt.h>\r
20#include <Pico/Patch.h>\r
21#include <zlib/zlib.h>\r
22\r
23#if defined(__GP2X__)\r
24 #include "../gp2x/gp2x.h"\r
25 #define SCREEN_WIDTH 320\r
26 #define SCREEN_BUFFER gp2x_screen\r
27#elif defined(__GIZ__)\r
28 #include "../gizmondo/giz.h"\r
29 #define SCREEN_WIDTH 321\r
1820b5a7 30 #define SCREEN_BUFFER giz_screen\r
31#elif defined(PSP)\r
32 #include "../psp/psp.h"\r
33 #define SCREEN_WIDTH 512\r
34 #define SCREEN_BUFFER psp_screen\r
ea8c405f 35#endif\r
36\r
c46ffd31 37char *PicoConfigFile = "config.cfg";\r
58c86d00 38currentConfig_t currentConfig, defaultConfig;\r
eacee137 39int rom_loaded = 0;\r
ea8c405f 40char noticeMsg[64];\r
41int state_slot = 0;\r
42int config_slot = 0, config_slot_current = 0;\r
1ca2ea4f 43char lastRomFile[512];\r
ea8c405f 44\r
45unsigned char *movie_data = NULL;\r
46static int movie_size = 0;\r
47\r
48// provided by platform code:\r
49extern char romFileName[];\r
50extern void emu_noticeMsgUpdated(void);\r
51extern void emu_getMainDir(char *dst, int len);\r
52extern void emu_setDefaultConfig(void);\r
53extern void menu_romload_prepare(const char *rom_name);\r
54extern void menu_romload_end(void);\r
55\r
56\r
57// utilities\r
58static void strlwr_(char* string)\r
59{\r
60 while ( (*string++ = (char)tolower(*string)) );\r
61}\r
62\r
63static int try_rfn_cut(void)\r
64{\r
65 FILE *tmp;\r
66 char *p;\r
67\r
68 p = romFileName + strlen(romFileName) - 1;\r
69 for (; p > romFileName; p--)\r
70 if (*p == '.') break;\r
71 *p = 0;\r
72\r
73 if((tmp = fopen(romFileName, "rb"))) {\r
74 fclose(tmp);\r
75 return 1;\r
76 }\r
77 return 0;\r
78}\r
79\r
80static void get_ext(char *file, char *ext)\r
81{\r
82 char *p;\r
83\r
84 p = file + strlen(file) - 4;\r
85 if (p < file) p = file;\r
86 strncpy(ext, p, 4);\r
87 ext[4] = 0;\r
88 strlwr_(ext);\r
89}\r
90\r
91char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
92char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };\r
93char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
94\r
95int emu_findBios(int region, char **bios_file)\r
96{\r
97 static char bios_path[1024];\r
98 int i, count;\r
99 char **files;\r
100 FILE *f = NULL;\r
101\r
102 if (region == 4) { // US\r
103 files = biosfiles_us;\r
104 count = sizeof(biosfiles_us) / sizeof(char *);\r
105 } else if (region == 8) { // EU\r
106 files = biosfiles_eu;\r
107 count = sizeof(biosfiles_eu) / sizeof(char *);\r
108 } else if (region == 1 || region == 2) {\r
109 files = biosfiles_jp;\r
110 count = sizeof(biosfiles_jp) / sizeof(char *);\r
111 } else {\r
112 return 0;\r
113 }\r
114\r
115 for (i = 0; i < count; i++)\r
116 {\r
117 emu_getMainDir(bios_path, sizeof(bios_path));\r
118 strcat(bios_path, files[i]);\r
119 strcat(bios_path, ".bin");\r
120 f = fopen(bios_path, "rb");\r
121 if (f) break;\r
122\r
123 bios_path[strlen(bios_path) - 4] = 0;\r
124 strcat(bios_path, ".zip");\r
125 f = fopen(bios_path, "rb");\r
126 if (f) break;\r
127 }\r
128\r
129 if (f) {\r
130 lprintf("using bios: %s\n", bios_path);\r
131 fclose(f);\r
132 if (bios_file) *bios_file = bios_path;\r
133 return 1;\r
134 } else {\r
135 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
136 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
137 lprintf("%s\n", menuErrorMsg);\r
138 return 0;\r
139 }\r
140}\r
141\r
c6196c0f 142/* check if the name begins with BIOS name */\r
1ca2ea4f 143/*\r
c6196c0f 144static int emu_isBios(const char *name)\r
145{\r
146 int i;\r
147 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
148 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
149 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
150 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
151 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
152 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
153 return 0;\r
154}\r
1ca2ea4f 155*/\r
c6196c0f 156\r
1ca2ea4f 157static unsigned char id_header[0x100];\r
58c86d00 158\r
ea8c405f 159/* checks if romFileName points to valid MegaCD image\r
160 * if so, checks for suitable BIOS */\r
161int emu_cdCheck(int *pregion)\r
162{\r
163 unsigned char buf[32];\r
164 pm_file *cd_f;\r
165 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
166\r
167 cd_f = pm_open(romFileName);\r
168 if (!cd_f) return 0; // let the upper level handle this\r
169\r
170 if (pm_read(buf, 32, cd_f) != 32) {\r
171 pm_close(cd_f);\r
172 return 0;\r
173 }\r
174\r
175 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
176 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
177 if (type == 0) {\r
178 pm_close(cd_f);\r
179 return 0;\r
180 }\r
181\r
58c86d00 182 pm_seek(cd_f, (type == 1) ? 0x100 : 0x110, SEEK_SET);\r
1ca2ea4f 183 pm_read(id_header, sizeof(id_header), cd_f);\r
58c86d00 184\r
ea8c405f 185 /* it seems we have a CD image here. Try to detect region now.. */\r
186 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
187 pm_read(buf, 1, cd_f);\r
188 pm_close(cd_f);\r
189\r
190 if (buf[0] == 0x64) region = 8; // EU\r
191 if (buf[0] == 0xa1) region = 1; // JAP\r
192\r
193 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
194 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
195\r
196 if (pregion != NULL) *pregion = region;\r
197\r
198 return type;\r
199}\r
200\r
58c86d00 201static int extract_text(char *dest, unsigned char *src, int len, int swab)\r
202{\r
203 char *p = dest;\r
204 int i;\r
205\r
206 if (swab) swab = 1;\r
207\r
208 for (i = len - 1; i >= 0; i--)\r
209 {\r
210 if (src[i^swab] != ' ') break;\r
211 }\r
212 len = i + 1;\r
213\r
214 for (i = 0; i < len; i++)\r
215 {\r
216 unsigned char s = src[i^swab];\r
217 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
218 s != '[' && s != ']' && s != '\\')\r
219 {\r
220 *p++ = s;\r
221 }\r
222 else\r
223 {\r
224 sprintf(p, "\\%02x", s);\r
225 p += 3;\r
226 }\r
227 }\r
228\r
229 return p - dest;\r
230}\r
231\r
232char *emu_makeRomId(void)\r
233{\r
234 static char id_string[3+0x11+0x11+0x30+16];\r
58c86d00 235 int pos;\r
236\r
1ca2ea4f 237 if (PicoMCD & 1)\r
238 strcpy(id_string, "CD|");\r
239 else strcpy(id_string, "MD|");\r
58c86d00 240 pos = 3;\r
241\r
c46ffd31 242 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, 1); // serial\r
58c86d00 243 id_string[pos] = '|'; pos++;\r
c46ffd31 244 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, 1); // region\r
58c86d00 245 id_string[pos] = '|'; pos++;\r
246 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, 1); // overseas name\r
247 id_string[pos] = 0;\r
248\r
58c86d00 249 return id_string;\r
250}\r
251\r
ea8c405f 252int emu_ReloadRom(void)\r
253{\r
254 unsigned int rom_size = 0;\r
255 char *used_rom_name = romFileName;\r
eacee137 256 unsigned char *rom_data = NULL;\r
ea8c405f 257 char ext[5];\r
258 pm_file *rom;\r
259 int ret, cd_state, cd_region, cfg_loaded = 0;\r
260\r
261 lprintf("emu_ReloadRom(%s)\n", romFileName);\r
262\r
263 get_ext(romFileName, ext);\r
264\r
265 // detect wrong extensions\r
eacee137 266 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
ea8c405f 267 sprintf(menuErrorMsg, "Not a ROM selected.");\r
268 return 0;\r
269 }\r
270\r
271 PicoPatchUnload();\r
272\r
273 // check for movie file\r
eacee137 274 if (movie_data) {\r
ea8c405f 275 free(movie_data);\r
276 movie_data = 0;\r
277 }\r
eacee137 278 if (!strcmp(ext, ".gmv")) {\r
ea8c405f 279 // check for both gmv and rom\r
280 int dummy;\r
281 FILE *movie_file = fopen(romFileName, "rb");\r
282 if(!movie_file) {\r
283 sprintf(menuErrorMsg, "Failed to open movie.");\r
284 return 0;\r
285 }\r
286 fseek(movie_file, 0, SEEK_END);\r
287 movie_size = ftell(movie_file);\r
288 fseek(movie_file, 0, SEEK_SET);\r
289 if(movie_size < 64+3) {\r
290 sprintf(menuErrorMsg, "Invalid GMV file.");\r
291 fclose(movie_file);\r
292 return 0;\r
293 }\r
294 movie_data = malloc(movie_size);\r
295 if(movie_data == NULL) {\r
296 sprintf(menuErrorMsg, "low memory.");\r
297 fclose(movie_file);\r
298 return 0;\r
299 }\r
300 fread(movie_data, 1, movie_size, movie_file);\r
301 fclose(movie_file);\r
302 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
303 sprintf(menuErrorMsg, "Invalid GMV file.");\r
304 return 0;\r
305 }\r
306 dummy = try_rfn_cut() || try_rfn_cut();\r
307 if (!dummy) {\r
308 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
309 return 0;\r
310 }\r
311 get_ext(romFileName, ext);\r
312 }\r
313 else if (!strcmp(ext, ".pat")) {\r
314 int dummy;\r
315 PicoPatchLoad(romFileName);\r
316 dummy = try_rfn_cut() || try_rfn_cut();\r
317 if (!dummy) {\r
318 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
319 return 0;\r
320 }\r
321 get_ext(romFileName, ext);\r
322 }\r
323\r
324 if ((PicoMCD & 1) && Pico_mcd != NULL)\r
325 Stop_CD();\r
326\r
327 // check for MegaCD image\r
328 cd_state = emu_cdCheck(&cd_region);\r
329 if (cd_state > 0)\r
330 {\r
331 // valid CD image, check for BIOS..\r
332\r
333 // we need to have config loaded at this point\r
334 ret = emu_ReadConfig(1, 1);\r
335 if (!ret) emu_ReadConfig(0, 1);\r
336 cfg_loaded = 1;\r
337\r
338 if (PicoRegionOverride) {\r
339 cd_region = PicoRegionOverride;\r
340 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");\r
341 }\r
342 if (!emu_findBios(cd_region, &used_rom_name)) {\r
343 // bios_help() ?\r
344 return 0;\r
345 }\r
346\r
347 PicoMCD |= 1;\r
348 get_ext(used_rom_name, ext);\r
349 }\r
350 else\r
351 {\r
352 if (PicoMCD & 1) Stop_CD();\r
353 PicoMCD &= ~1;\r
354 }\r
355\r
356 rom = pm_open(used_rom_name);\r
eacee137 357 if (!rom) {\r
ea8c405f 358 sprintf(menuErrorMsg, "Failed to open rom.");\r
359 return 0;\r
360 }\r
361\r
4b167c12 362 menu_romload_prepare(used_rom_name); // also CD load\r
ea8c405f 363\r
eacee137 364 PicoCartUnload();\r
365 rom_loaded = 0;\r
ea8c405f 366\r
eacee137 367 if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
ea8c405f 368 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
369 lprintf("%s\n", menuErrorMsg);\r
370 pm_close(rom);\r
371 menu_romload_end();\r
372 return 0;\r
373 }\r
374 pm_close(rom);\r
ea8c405f 375\r
376 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
eacee137 377 if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
ea8c405f 378 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
379 if (rom_data) free(rom_data);\r
ea8c405f 380 sprintf(menuErrorMsg, "Not a ROM selected.");\r
4b167c12 381 menu_romload_end();\r
ea8c405f 382 return 0;\r
383 }\r
384\r
385 // load config for this ROM (do this before insert to get correct region)\r
1ca2ea4f 386 if (!(PicoMCD&1))\r
387 memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r
ea8c405f 388 if (!cfg_loaded) {\r
389 ret = emu_ReadConfig(1, 1);\r
390 if (!ret) emu_ReadConfig(0, 1);\r
391 }\r
392\r
393 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
eacee137 394 if (PicoCartInsert(rom_data, rom_size)) {\r
ea8c405f 395 sprintf(menuErrorMsg, "Failed to load ROM.");\r
4b167c12 396 menu_romload_end();\r
ea8c405f 397 return 0;\r
398 }\r
399\r
400 Pico.m.frame_count = 0;\r
401\r
402 // insert CD if it was detected\r
403 if (cd_state > 0) {\r
404 ret = Insert_CD(romFileName, cd_state == 2);\r
405 if (ret != 0) {\r
406 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
407 lprintf("%s\n", menuErrorMsg);\r
4b167c12 408 menu_romload_end();\r
ea8c405f 409 return 0;\r
410 }\r
411 }\r
412\r
4b167c12 413 menu_romload_end();\r
414\r
ea8c405f 415 if (PicoPatches) {\r
416 PicoPatchPrepare();\r
417 PicoPatchApply();\r
418 }\r
419\r
420 // additional movie stuff\r
421 if (movie_data) {\r
422 if(movie_data[0x14] == '6')\r
423 PicoOpt |= 0x20; // 6 button pad\r
424 else PicoOpt &= ~0x20;\r
425 PicoOpt |= 0x10040; // accurate timing, no VDP fifo timing\r
426 if(movie_data[0xF] >= 'A') {\r
427 if(movie_data[0x16] & 0x80) {\r
428 PicoRegionOverride = 8;\r
429 } else {\r
430 PicoRegionOverride = 4;\r
431 }\r
432 PicoReset(0);\r
433 // TODO: bits 6 & 5\r
434 }\r
435 movie_data[0x18+30] = 0;\r
436 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
437 }\r
438 else\r
439 {\r
440 PicoOpt &= ~0x10000;\r
441 if(Pico.m.pal) {\r
442 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
443 } else {\r
444 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
445 }\r
446 }\r
447 emu_noticeMsgUpdated();\r
448\r
449 // load SRAM for this ROM\r
eacee137 450 if (currentConfig.EmuOpt & 1)\r
ea8c405f 451 emu_SaveLoadGame(1, 1);\r
452\r
1ca2ea4f 453 strncpy(lastRomFile, romFileName, sizeof(lastRomFile)-1);\r
454 lastRomFile[sizeof(lastRomFile)-1] = 0;\r
eacee137 455 rom_loaded = 1;\r
ea8c405f 456 return 1;\r
457}\r
458\r
459\r
460static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
461{\r
462 char *p;\r
463 int prefix_len = 0;\r
464\r
465 // make save filename\r
466 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
467 *dst = 0;\r
468 if (prefix) {\r
469 strcpy(dst, prefix);\r
470 prefix_len = strlen(prefix);\r
471 }\r
472 strncpy(dst + prefix_len, p, 511-prefix_len);\r
473 dst[511-8] = 0;\r
474 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
475 if (ext) strcat(dst, ext);\r
476}\r
477\r
478\r
479int emu_ReadConfig(int game, int no_defaults)\r
480{\r
58c86d00 481 char cfg[512];\r
ea8c405f 482 FILE *f;\r
58c86d00 483 int ret;\r
ea8c405f 484\r
485 if (!game)\r
486 {\r
487 if (!no_defaults)\r
ea8c405f 488 emu_setDefaultConfig();\r
ea8c405f 489 strncpy(cfg, PicoConfigFile, 511);\r
490 if (config_slot != 0)\r
491 {\r
492 char *p = strrchr(cfg, '.');\r
493 if (p == NULL) p = cfg + strlen(cfg);\r
58c86d00 494 sprintf(p, ".%i.cfg", config_slot);\r
ea8c405f 495 }\r
496 cfg[511] = 0;\r
58c86d00 497 ret = config_readsect(cfg, NULL);\r
ea8c405f 498 }\r
58c86d00 499 else\r
500 {\r
1ca2ea4f 501 char *sect = emu_makeRomId();\r
ea8c405f 502\r
58c86d00 503 // try new .cfg way\r
504 if (config_slot != 0)\r
505 sprintf(cfg, "game.%i.cfg", config_slot);\r
506 else strcpy(cfg, "game.cfg");\r
1ca2ea4f 507\r
508 ret = -1;\r
509 if (config_havesect(cfg, sect)) {\r
510 emu_setDefaultConfig();\r
511 ret = config_readsect(cfg, sect);\r
512 }\r
58c86d00 513\r
514 if (ret != 0)\r
515 {\r
516 // fall back to old\r
517 char extbuf[16];\r
518 if (config_slot != 0)\r
519 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
520 else strcpy(extbuf, ".pbcfg");\r
521 romfname_ext(cfg, "cfg/", extbuf);\r
522 f = fopen(cfg, "rb");\r
523 if (!f) {\r
524 romfname_ext(cfg, NULL, ".pbcfg");\r
525 f = fopen(cfg, "rb");\r
526 }\r
527 if (f) {\r
1ca2ea4f 528 int bread;\r
529 fseek(f, 512, SEEK_SET); // skip unused lrom buffer\r
530 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
58c86d00 531 lprintf("emu_ReadConfig: %s %s\n", cfg, bread > 0 ? "(ok)" : "(failed)");\r
532 fclose(f);\r
533 ret = 0;\r
534 }\r
535\r
536 if (ret == 0) {\r
537 PicoOpt = currentConfig.s_PicoOpt;\r
538 PsndRate = currentConfig.s_PsndRate;\r
539 PicoRegionOverride = currentConfig.s_PicoRegion;\r
540 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
541 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
542 }\r
543 }\r
544 else\r
545 {\r
1ca2ea4f 546 lprintf("loaded cfg from sect \"%s\"\n", sect);\r
58c86d00 547 }\r
ea8c405f 548 }\r
58c86d00 549\r
ea8c405f 550 // some sanity checks\r
551 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
2445b7cb 552#ifdef PSP\r
553 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
554#else\r
ea8c405f 555 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
2445b7cb 556#endif\r
ea8c405f 557 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
9839d126 558#ifdef __GP2X__\r
ea8c405f 559 // if volume keys are unbound, bind them to volume control\r
560 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
561 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
562 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
563 }\r
9839d126 564#endif\r
58c86d00 565 if (ret == 0) config_slot_current = config_slot;\r
566 return (ret == 0);\r
ea8c405f 567}\r
568\r
569\r
58c86d00 570int emu_WriteConfig(int is_game)\r
ea8c405f 571{\r
58c86d00 572 char cfg[512], *game_sect = NULL;\r
573 int ret, write_lrom = 0;\r
ea8c405f 574\r
58c86d00 575 if (!is_game)\r
ea8c405f 576 {\r
577 strncpy(cfg, PicoConfigFile, 511);\r
578 if (config_slot != 0)\r
579 {\r
580 char *p = strrchr(cfg, '.');\r
581 if (p == NULL) p = cfg + strlen(cfg);\r
58c86d00 582 sprintf(p, ".%i.cfg", config_slot);\r
ea8c405f 583 }\r
584 cfg[511] = 0;\r
58c86d00 585 write_lrom = 1;\r
ea8c405f 586 } else {\r
587 if (config_slot != 0)\r
58c86d00 588 sprintf(cfg, "game.%i.cfg", config_slot);\r
589 else strcpy(cfg, "game.cfg");\r
590 game_sect = emu_makeRomId();\r
1ca2ea4f 591 lprintf("emu_WriteConfig: sect \"%s\"\n", game_sect);\r
ea8c405f 592 }\r
593\r
594 lprintf("emu_WriteConfig: %s ", cfg);\r
58c86d00 595 ret = config_writesect(cfg, game_sect);\r
1ca2ea4f 596 if (write_lrom) config_writelrom(cfg);\r
ea8c405f 597#ifndef NO_SYNC\r
58c86d00 598 sync();\r
ea8c405f 599#endif\r
58c86d00 600 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
ea8c405f 601\r
58c86d00 602 if (ret == 0) config_slot_current = config_slot;\r
603 return ret == 0;\r
ea8c405f 604}\r
605\r
606\r
607void emu_textOut8(int x, int y, const char *text)\r
608{\r
609 int i,l,len=strlen(text);\r
610 unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
611\r
612 /* always using built-in font */\r
613 for (i = 0; i < len; i++)\r
614 {\r
615 for (l=0;l<8;l++)\r
616 {\r
617 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
618 if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;\r
619 if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;\r
620 if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;\r
621 if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;\r
622 if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;\r
623 if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;\r
624 if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;\r
625 if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;\r
626 }\r
627 screen += 8;\r
628 }\r
629}\r
630\r
631void emu_textOut16(int x, int y, const char *text)\r
632{\r
633 int i,l,len=strlen(text);\r
634 unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
635\r
636 for (i = 0; i < len; i++)\r
637 {\r
638 for (l=0;l<8;l++)\r
639 {\r
640 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
641 if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;\r
642 if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;\r
643 if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;\r
644 if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;\r
645 if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;\r
646 if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;\r
647 if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;\r
648 if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;\r
649 }\r
650 screen += 8;\r
651 }\r
652}\r
653\r
654\r
655void emu_updateMovie(void)\r
656{\r
657 int offs = Pico.m.frame_count*3 + 0x40;\r
658 if (offs+3 > movie_size) {\r
659 free(movie_data);\r
660 movie_data = 0;\r
661 strcpy(noticeMsg, "END OF MOVIE.");\r
662 lprintf("END OF MOVIE.\n");\r
663 emu_noticeMsgUpdated();\r
664 } else {\r
665 // MXYZ SACB RLDU\r
666 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
667 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
668 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
669 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
670 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
671 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
672 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
673 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
674 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
675 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
676 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
677 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
678 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
679 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
680 }\r
681}\r
682\r
683\r
684static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
685{\r
686 return gzread(file, p, _n);\r
687}\r
688\r
689\r
690static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
691{\r
692 return gzwrite(file, p, _n);\r
693}\r
694\r
695static int try_ropen_file(const char *fname)\r
696{\r
697 FILE *f;\r
698\r
699 f = fopen(fname, "rb");\r
700 if (f) {\r
701 fclose(f);\r
702 return 1;\r
703 }\r
704 return 0;\r
705}\r
706\r
707char *emu_GetSaveFName(int load, int is_sram, int slot)\r
708{\r
709 static char saveFname[512];\r
710 char ext[16];\r
711\r
712 if (is_sram)\r
713 {\r
714 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
715 if (load) {\r
716 if (try_ropen_file(saveFname)) return saveFname;\r
717 // try in current dir..\r
718 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
719 if (try_ropen_file(saveFname)) return saveFname;\r
720 return NULL; // give up\r
721 }\r
722 }\r
723 else\r
724 {\r
725 ext[0] = 0;\r
726 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
727 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
728\r
729 romfname_ext(saveFname, "mds/", ext);\r
730 if (load) {\r
731 if (try_ropen_file(saveFname)) return saveFname;\r
732 romfname_ext(saveFname, NULL, ext);\r
733 if (try_ropen_file(saveFname)) return saveFname;\r
734 if (currentConfig.EmuOpt & 8) {\r
735 ext[0] = 0;\r
736 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
737 strcat(ext, ".mds");\r
738\r
739 romfname_ext(saveFname, "mds/", ext);\r
740 if (try_ropen_file(saveFname)) return saveFname;\r
741 romfname_ext(saveFname, NULL, ext);\r
742 if (try_ropen_file(saveFname)) return saveFname;\r
743 }\r
744 return NULL;\r
745 }\r
746 }\r
747\r
748 return saveFname;\r
749}\r
750\r
751int emu_checkSaveFile(int slot)\r
752{\r
753 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
754}\r
755\r
756void emu_setSaveStateCbs(int gz)\r
757{\r
758 if (gz) {\r
759 areaRead = gzRead2;\r
760 areaWrite = gzWrite2;\r
761 areaEof = (areaeof *) gzeof;\r
762 areaSeek = (areaseek *) gzseek;\r
763 areaClose = (areaclose *) gzclose;\r
764 } else {\r
765 areaRead = (arearw *) fread;\r
766 areaWrite = (arearw *) fwrite;\r
767 areaEof = (areaeof *) feof;\r
768 areaSeek = (areaseek *) fseek;\r
769 areaClose = (areaclose *) fclose;\r
770 }\r
771}\r
772\r
773int emu_SaveLoadGame(int load, int sram)\r
774{\r
775 int ret = 0;\r
776 char *saveFname;\r
777\r
778 // make save filename\r
779 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
780 if (saveFname == NULL) {\r
781 if (!sram) {\r
782 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
783 emu_noticeMsgUpdated();\r
784 }\r
785 return -1;\r
786 }\r
787\r
788 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
789\r
da42200b 790 if (sram)\r
791 {\r
ea8c405f 792 FILE *sramFile;\r
793 int sram_size;\r
794 unsigned char *sram_data;\r
795 int truncate = 1;\r
796 if (PicoMCD&1) {\r
797 if (PicoOpt&0x8000) { // MCD RAM cart?\r
798 sram_size = 0x12000;\r
799 sram_data = SRam.data;\r
800 if (sram_data)\r
801 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
802 } else {\r
803 sram_size = 0x2000;\r
804 sram_data = Pico_mcd->bram;\r
805 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
806 }\r
807 } else {\r
808 sram_size = SRam.end-SRam.start+1;\r
809 if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
810 sram_data = SRam.data;\r
811 }\r
812 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
813\r
814 if (load) {\r
815 sramFile = fopen(saveFname, "rb");\r
816 if(!sramFile) return -1;\r
817 fread(sram_data, 1, sram_size, sramFile);\r
818 fclose(sramFile);\r
819 if ((PicoMCD&1) && (PicoOpt&0x8000))\r
820 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
821 } else {\r
822 // sram save needs some special processing\r
823 // see if we have anything to save\r
824 for (; sram_size > 0; sram_size--)\r
825 if (sram_data[sram_size-1]) break;\r
826\r
827 if (sram_size) {\r
828 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
829 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
830 if (!sramFile) return -1;\r
831 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
832 ret = (ret != sram_size) ? -1 : 0;\r
833 fclose(sramFile);\r
834#ifndef NO_SYNC\r
835 sync();\r
836#endif\r
837 }\r
838 }\r
839 return ret;\r
840 }\r
841 else\r
842 {\r
843 void *PmovFile = NULL;\r
da42200b 844 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)\r
845 {\r
ea8c405f 846 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
847 emu_setSaveStateCbs(1);\r
da42200b 848 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
ea8c405f 849 }\r
850 }\r
851 else\r
852 {\r
853 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
854 emu_setSaveStateCbs(0);\r
855 }\r
856 }\r
857 if(PmovFile) {\r
858 ret = PmovState(load ? 6 : 5, PmovFile);\r
859 areaClose(PmovFile);\r
860 PmovFile = 0;\r
861 if (load) Pico.m.dirtyPal=1;\r
862#ifndef NO_SYNC\r
863 else sync();\r
864#endif\r
865 }\r
866 else ret = -1;\r
867 if (!ret)\r
868 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
869 else\r
870 {\r
871 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
872 ret = -1;\r
873 }\r
874\r
875 emu_noticeMsgUpdated();\r
876 return ret;\r
877 }\r
878}\r
fast MegaDrive/MegaCD/32X emulator