notaz.gp2x.de / picodrive.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
1.40a fixes
[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
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
bdec53c9 44int kb_combo_keys = 0, kb_combo_acts = 0; // keys and actions which need button combos\r
ea8c405f 45\r
46unsigned char *movie_data = NULL;\r
47static int movie_size = 0;\r
48\r
49// provided by platform code:\r
50extern char romFileName[];\r
51extern void emu_noticeMsgUpdated(void);\r
52extern void emu_getMainDir(char *dst, int len);\r
53extern void emu_setDefaultConfig(void);\r
54extern void menu_romload_prepare(const char *rom_name);\r
55extern void menu_romload_end(void);\r
56\r
57\r
58// utilities\r
59static void strlwr_(char* string)\r
60{\r
61 while ( (*string++ = (char)tolower(*string)) );\r
62}\r
63\r
64static int try_rfn_cut(void)\r
65{\r
66 FILE *tmp;\r
67 char *p;\r
68\r
69 p = romFileName + strlen(romFileName) - 1;\r
70 for (; p > romFileName; p--)\r
71 if (*p == '.') break;\r
72 *p = 0;\r
73\r
74 if((tmp = fopen(romFileName, "rb"))) {\r
75 fclose(tmp);\r
76 return 1;\r
77 }\r
78 return 0;\r
79}\r
80\r
81static void get_ext(char *file, char *ext)\r
82{\r
83 char *p;\r
84\r
85 p = file + strlen(file) - 4;\r
86 if (p < file) p = file;\r
87 strncpy(ext, p, 4);\r
88 ext[4] = 0;\r
89 strlwr_(ext);\r
90}\r
91\r
2d2247c2 92char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r
93char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r
ea8c405f 94char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
95\r
96int emu_findBios(int region, char **bios_file)\r
97{\r
98 static char bios_path[1024];\r
99 int i, count;\r
100 char **files;\r
101 FILE *f = NULL;\r
102\r
103 if (region == 4) { // US\r
104 files = biosfiles_us;\r
105 count = sizeof(biosfiles_us) / sizeof(char *);\r
106 } else if (region == 8) { // EU\r
107 files = biosfiles_eu;\r
108 count = sizeof(biosfiles_eu) / sizeof(char *);\r
109 } else if (region == 1 || region == 2) {\r
110 files = biosfiles_jp;\r
111 count = sizeof(biosfiles_jp) / sizeof(char *);\r
112 } else {\r
113 return 0;\r
114 }\r
115\r
116 for (i = 0; i < count; i++)\r
117 {\r
118 emu_getMainDir(bios_path, sizeof(bios_path));\r
119 strcat(bios_path, files[i]);\r
120 strcat(bios_path, ".bin");\r
121 f = fopen(bios_path, "rb");\r
122 if (f) break;\r
123\r
124 bios_path[strlen(bios_path) - 4] = 0;\r
125 strcat(bios_path, ".zip");\r
126 f = fopen(bios_path, "rb");\r
127 if (f) break;\r
128 }\r
129\r
130 if (f) {\r
131 lprintf("using bios: %s\n", bios_path);\r
132 fclose(f);\r
133 if (bios_file) *bios_file = bios_path;\r
134 return 1;\r
135 } else {\r
136 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
137 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
138 lprintf("%s\n", menuErrorMsg);\r
139 return 0;\r
140 }\r
141}\r
142\r
c6196c0f 143/* check if the name begins with BIOS name */\r
1ca2ea4f 144/*\r
c6196c0f 145static int emu_isBios(const char *name)\r
146{\r
147 int i;\r
148 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
149 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
150 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
151 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
152 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
153 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
154 return 0;\r
155}\r
1ca2ea4f 156*/\r
c6196c0f 157\r
1ca2ea4f 158static unsigned char id_header[0x100];\r
58c86d00 159\r
ea8c405f 160/* checks if romFileName points to valid MegaCD image\r
161 * if so, checks for suitable BIOS */\r
162int emu_cdCheck(int *pregion)\r
163{\r
164 unsigned char buf[32];\r
165 pm_file *cd_f;\r
166 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
167\r
168 cd_f = pm_open(romFileName);\r
169 if (!cd_f) return 0; // let the upper level handle this\r
170\r
171 if (pm_read(buf, 32, cd_f) != 32) {\r
172 pm_close(cd_f);\r
173 return 0;\r
174 }\r
175\r
176 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
177 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
178 if (type == 0) {\r
179 pm_close(cd_f);\r
180 return 0;\r
181 }\r
182\r
58c86d00 183 pm_seek(cd_f, (type == 1) ? 0x100 : 0x110, SEEK_SET);\r
1ca2ea4f 184 pm_read(id_header, sizeof(id_header), cd_f);\r
58c86d00 185\r
ea8c405f 186 /* it seems we have a CD image here. Try to detect region now.. */\r
187 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
188 pm_read(buf, 1, cd_f);\r
189 pm_close(cd_f);\r
190\r
191 if (buf[0] == 0x64) region = 8; // EU\r
192 if (buf[0] == 0xa1) region = 1; // JAP\r
193\r
194 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
195 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
196\r
197 if (pregion != NULL) *pregion = region;\r
198\r
199 return type;\r
200}\r
201\r
58c86d00 202static int extract_text(char *dest, unsigned char *src, int len, int swab)\r
203{\r
204 char *p = dest;\r
205 int i;\r
206\r
207 if (swab) swab = 1;\r
208\r
209 for (i = len - 1; i >= 0; i--)\r
210 {\r
211 if (src[i^swab] != ' ') break;\r
212 }\r
213 len = i + 1;\r
214\r
215 for (i = 0; i < len; i++)\r
216 {\r
217 unsigned char s = src[i^swab];\r
218 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
219 s != '[' && s != ']' && s != '\\')\r
220 {\r
221 *p++ = s;\r
222 }\r
223 else\r
224 {\r
225 sprintf(p, "\\%02x", s);\r
226 p += 3;\r
227 }\r
228 }\r
229\r
230 return p - dest;\r
231}\r
232\r
233char *emu_makeRomId(void)\r
234{\r
235 static char id_string[3+0x11+0x11+0x30+16];\r
bdec53c9 236 int pos, swab = 1;\r
58c86d00 237\r
bdec53c9 238 if (PicoMCD & 1) {\r
239 strcpy(id_string, "CD|");\r
240 swab = 0;\r
241 }\r
1ca2ea4f 242 else strcpy(id_string, "MD|");\r
58c86d00 243 pos = 3;\r
244\r
bdec53c9 245 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r
58c86d00 246 id_string[pos] = '|'; pos++;\r
bdec53c9 247 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r
58c86d00 248 id_string[pos] = '|'; pos++;\r
bdec53c9 249 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r
58c86d00 250 id_string[pos] = 0;\r
251\r
58c86d00 252 return id_string;\r
253}\r
254\r
ea8c405f 255int emu_ReloadRom(void)\r
256{\r
257 unsigned int rom_size = 0;\r
258 char *used_rom_name = romFileName;\r
eacee137 259 unsigned char *rom_data = NULL;\r
ea8c405f 260 char ext[5];\r
261 pm_file *rom;\r
262 int ret, cd_state, cd_region, cfg_loaded = 0;\r
263\r
264 lprintf("emu_ReloadRom(%s)\n", romFileName);\r
265\r
266 get_ext(romFileName, ext);\r
267\r
268 // detect wrong extensions\r
eacee137 269 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
ea8c405f 270 sprintf(menuErrorMsg, "Not a ROM selected.");\r
271 return 0;\r
272 }\r
273\r
274 PicoPatchUnload();\r
275\r
276 // check for movie file\r
eacee137 277 if (movie_data) {\r
ea8c405f 278 free(movie_data);\r
279 movie_data = 0;\r
280 }\r
2d2247c2 281 if (!strcmp(ext, ".gmv"))\r
282 {\r
ea8c405f 283 // check for both gmv and rom\r
284 int dummy;\r
285 FILE *movie_file = fopen(romFileName, "rb");\r
286 if(!movie_file) {\r
287 sprintf(menuErrorMsg, "Failed to open movie.");\r
288 return 0;\r
289 }\r
290 fseek(movie_file, 0, SEEK_END);\r
291 movie_size = ftell(movie_file);\r
292 fseek(movie_file, 0, SEEK_SET);\r
293 if(movie_size < 64+3) {\r
294 sprintf(menuErrorMsg, "Invalid GMV file.");\r
295 fclose(movie_file);\r
296 return 0;\r
297 }\r
298 movie_data = malloc(movie_size);\r
299 if(movie_data == NULL) {\r
300 sprintf(menuErrorMsg, "low memory.");\r
301 fclose(movie_file);\r
302 return 0;\r
303 }\r
304 fread(movie_data, 1, movie_size, movie_file);\r
305 fclose(movie_file);\r
306 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
307 sprintf(menuErrorMsg, "Invalid GMV file.");\r
308 return 0;\r
309 }\r
310 dummy = try_rfn_cut() || try_rfn_cut();\r
311 if (!dummy) {\r
312 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
313 return 0;\r
314 }\r
315 get_ext(romFileName, ext);\r
316 }\r
317 else if (!strcmp(ext, ".pat")) {\r
318 int dummy;\r
319 PicoPatchLoad(romFileName);\r
320 dummy = try_rfn_cut() || try_rfn_cut();\r
321 if (!dummy) {\r
322 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
323 return 0;\r
324 }\r
325 get_ext(romFileName, ext);\r
326 }\r
327\r
328 if ((PicoMCD & 1) && Pico_mcd != NULL)\r
329 Stop_CD();\r
330\r
331 // check for MegaCD image\r
332 cd_state = emu_cdCheck(&cd_region);\r
333 if (cd_state > 0)\r
334 {\r
bdec53c9 335 PicoMCD |= 1;\r
ea8c405f 336 // valid CD image, check for BIOS..\r
337\r
338 // we need to have config loaded at this point\r
339 ret = emu_ReadConfig(1, 1);\r
340 if (!ret) emu_ReadConfig(0, 1);\r
341 cfg_loaded = 1;\r
342\r
343 if (PicoRegionOverride) {\r
344 cd_region = PicoRegionOverride;\r
345 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");\r
346 }\r
347 if (!emu_findBios(cd_region, &used_rom_name)) {\r
348 // bios_help() ?\r
bdec53c9 349 PicoMCD &= ~1;\r
ea8c405f 350 return 0;\r
351 }\r
352\r
ea8c405f 353 get_ext(used_rom_name, ext);\r
354 }\r
355 else\r
356 {\r
357 if (PicoMCD & 1) Stop_CD();\r
358 PicoMCD &= ~1;\r
359 }\r
360\r
361 rom = pm_open(used_rom_name);\r
eacee137 362 if (!rom) {\r
ea8c405f 363 sprintf(menuErrorMsg, "Failed to open rom.");\r
364 return 0;\r
365 }\r
366\r
4b167c12 367 menu_romload_prepare(used_rom_name); // also CD load\r
ea8c405f 368\r
eacee137 369 PicoCartUnload();\r
370 rom_loaded = 0;\r
ea8c405f 371\r
eacee137 372 if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
ea8c405f 373 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
374 lprintf("%s\n", menuErrorMsg);\r
375 pm_close(rom);\r
376 menu_romload_end();\r
377 return 0;\r
378 }\r
379 pm_close(rom);\r
ea8c405f 380\r
381 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
eacee137 382 if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
ea8c405f 383 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
384 if (rom_data) free(rom_data);\r
ea8c405f 385 sprintf(menuErrorMsg, "Not a ROM selected.");\r
4b167c12 386 menu_romload_end();\r
ea8c405f 387 return 0;\r
388 }\r
389\r
390 // load config for this ROM (do this before insert to get correct region)\r
1ca2ea4f 391 if (!(PicoMCD&1))\r
392 memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r
ea8c405f 393 if (!cfg_loaded) {\r
394 ret = emu_ReadConfig(1, 1);\r
395 if (!ret) emu_ReadConfig(0, 1);\r
396 }\r
397\r
398 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
eacee137 399 if (PicoCartInsert(rom_data, rom_size)) {\r
ea8c405f 400 sprintf(menuErrorMsg, "Failed to load ROM.");\r
4b167c12 401 menu_romload_end();\r
ea8c405f 402 return 0;\r
403 }\r
404\r
405 Pico.m.frame_count = 0;\r
406\r
407 // insert CD if it was detected\r
408 if (cd_state > 0) {\r
409 ret = Insert_CD(romFileName, cd_state == 2);\r
410 if (ret != 0) {\r
411 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
412 lprintf("%s\n", menuErrorMsg);\r
4b167c12 413 menu_romload_end();\r
ea8c405f 414 return 0;\r
415 }\r
416 }\r
417\r
4b167c12 418 menu_romload_end();\r
419\r
ea8c405f 420 if (PicoPatches) {\r
421 PicoPatchPrepare();\r
422 PicoPatchApply();\r
423 }\r
424\r
425 // additional movie stuff\r
426 if (movie_data) {\r
427 if(movie_data[0x14] == '6')\r
428 PicoOpt |= 0x20; // 6 button pad\r
429 else PicoOpt &= ~0x20;\r
430 PicoOpt |= 0x10040; // accurate timing, no VDP fifo timing\r
431 if(movie_data[0xF] >= 'A') {\r
432 if(movie_data[0x16] & 0x80) {\r
433 PicoRegionOverride = 8;\r
434 } else {\r
435 PicoRegionOverride = 4;\r
436 }\r
437 PicoReset(0);\r
438 // TODO: bits 6 & 5\r
439 }\r
440 movie_data[0x18+30] = 0;\r
441 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
442 }\r
443 else\r
444 {\r
445 PicoOpt &= ~0x10000;\r
446 if(Pico.m.pal) {\r
447 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
448 } else {\r
449 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
450 }\r
451 }\r
452 emu_noticeMsgUpdated();\r
453\r
454 // load SRAM for this ROM\r
eacee137 455 if (currentConfig.EmuOpt & 1)\r
ea8c405f 456 emu_SaveLoadGame(1, 1);\r
457\r
1ca2ea4f 458 strncpy(lastRomFile, romFileName, sizeof(lastRomFile)-1);\r
459 lastRomFile[sizeof(lastRomFile)-1] = 0;\r
eacee137 460 rom_loaded = 1;\r
ea8c405f 461 return 1;\r
462}\r
463\r
464\r
465static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
466{\r
467 char *p;\r
468 int prefix_len = 0;\r
469\r
470 // make save filename\r
471 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
472 *dst = 0;\r
473 if (prefix) {\r
474 strcpy(dst, prefix);\r
475 prefix_len = strlen(prefix);\r
476 }\r
477 strncpy(dst + prefix_len, p, 511-prefix_len);\r
478 dst[511-8] = 0;\r
479 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
480 if (ext) strcat(dst, ext);\r
481}\r
482\r
483\r
484int emu_ReadConfig(int game, int no_defaults)\r
485{\r
58c86d00 486 char cfg[512];\r
ea8c405f 487 FILE *f;\r
58c86d00 488 int ret;\r
ea8c405f 489\r
490 if (!game)\r
491 {\r
492 if (!no_defaults)\r
ea8c405f 493 emu_setDefaultConfig();\r
ea8c405f 494 strncpy(cfg, PicoConfigFile, 511);\r
495 if (config_slot != 0)\r
496 {\r
497 char *p = strrchr(cfg, '.');\r
498 if (p == NULL) p = cfg + strlen(cfg);\r
58c86d00 499 sprintf(p, ".%i.cfg", config_slot);\r
ea8c405f 500 }\r
501 cfg[511] = 0;\r
58c86d00 502 ret = config_readsect(cfg, NULL);\r
ea8c405f 503 }\r
58c86d00 504 else\r
505 {\r
1ca2ea4f 506 char *sect = emu_makeRomId();\r
ea8c405f 507\r
58c86d00 508 // try new .cfg way\r
509 if (config_slot != 0)\r
510 sprintf(cfg, "game.%i.cfg", config_slot);\r
511 else strcpy(cfg, "game.cfg");\r
1ca2ea4f 512\r
513 ret = -1;\r
514 if (config_havesect(cfg, sect)) {\r
7b802576 515 int vol = currentConfig.volume;\r
1ca2ea4f 516 emu_setDefaultConfig();\r
517 ret = config_readsect(cfg, sect);\r
7b802576 518 currentConfig.volume = vol; // make vol global (bah)\r
1ca2ea4f 519 }\r
a39b7867 520 else\r
521 config_readsect("game_def.cfg", sect);\r
58c86d00 522\r
523 if (ret != 0)\r
524 {\r
525 // fall back to old\r
526 char extbuf[16];\r
527 if (config_slot != 0)\r
528 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
529 else strcpy(extbuf, ".pbcfg");\r
530 romfname_ext(cfg, "cfg/", extbuf);\r
531 f = fopen(cfg, "rb");\r
532 if (!f) {\r
533 romfname_ext(cfg, NULL, ".pbcfg");\r
534 f = fopen(cfg, "rb");\r
535 }\r
536 if (f) {\r
1ca2ea4f 537 int bread;\r
538 fseek(f, 512, SEEK_SET); // skip unused lrom buffer\r
539 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
58c86d00 540 lprintf("emu_ReadConfig: %s %s\n", cfg, bread > 0 ? "(ok)" : "(failed)");\r
541 fclose(f);\r
542 ret = 0;\r
543 }\r
544\r
545 if (ret == 0) {\r
546 PicoOpt = currentConfig.s_PicoOpt;\r
547 PsndRate = currentConfig.s_PsndRate;\r
548 PicoRegionOverride = currentConfig.s_PicoRegion;\r
549 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
2d2247c2 550 // PicoCDBuffers = currentConfig.s_PicoCDBuffers; // ignore in this case\r
58c86d00 551 }\r
552 }\r
553 else\r
554 {\r
1ca2ea4f 555 lprintf("loaded cfg from sect \"%s\"\n", sect);\r
58c86d00 556 }\r
ea8c405f 557 }\r
58c86d00 558\r
ea8c405f 559 // some sanity checks\r
560 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
2445b7cb 561#ifdef PSP\r
562 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
563#else\r
ea8c405f 564 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
2445b7cb 565#endif\r
ea8c405f 566 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
9839d126 567#ifdef __GP2X__\r
ea8c405f 568 // if volume keys are unbound, bind them to volume control\r
569 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
570 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
571 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
572 }\r
9839d126 573#endif\r
58c86d00 574 if (ret == 0) config_slot_current = config_slot;\r
575 return (ret == 0);\r
ea8c405f 576}\r
577\r
578\r
58c86d00 579int emu_WriteConfig(int is_game)\r
ea8c405f 580{\r
58c86d00 581 char cfg[512], *game_sect = NULL;\r
582 int ret, write_lrom = 0;\r
ea8c405f 583\r
58c86d00 584 if (!is_game)\r
ea8c405f 585 {\r
586 strncpy(cfg, PicoConfigFile, 511);\r
587 if (config_slot != 0)\r
588 {\r
589 char *p = strrchr(cfg, '.');\r
590 if (p == NULL) p = cfg + strlen(cfg);\r
58c86d00 591 sprintf(p, ".%i.cfg", config_slot);\r
ea8c405f 592 }\r
593 cfg[511] = 0;\r
58c86d00 594 write_lrom = 1;\r
ea8c405f 595 } else {\r
596 if (config_slot != 0)\r
58c86d00 597 sprintf(cfg, "game.%i.cfg", config_slot);\r
598 else strcpy(cfg, "game.cfg");\r
599 game_sect = emu_makeRomId();\r
1ca2ea4f 600 lprintf("emu_WriteConfig: sect \"%s\"\n", game_sect);\r
ea8c405f 601 }\r
602\r
603 lprintf("emu_WriteConfig: %s ", cfg);\r
58c86d00 604 ret = config_writesect(cfg, game_sect);\r
1ca2ea4f 605 if (write_lrom) config_writelrom(cfg);\r
ea8c405f 606#ifndef NO_SYNC\r
58c86d00 607 sync();\r
ea8c405f 608#endif\r
58c86d00 609 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
ea8c405f 610\r
58c86d00 611 if (ret == 0) config_slot_current = config_slot;\r
612 return ret == 0;\r
ea8c405f 613}\r
614\r
615\r
616void emu_textOut8(int x, int y, const char *text)\r
617{\r
618 int i,l,len=strlen(text);\r
619 unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
620\r
621 /* always using built-in font */\r
622 for (i = 0; i < len; i++)\r
623 {\r
624 for (l=0;l<8;l++)\r
625 {\r
626 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
627 if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;\r
628 if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;\r
629 if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;\r
630 if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;\r
631 if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;\r
632 if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;\r
633 if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;\r
634 if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;\r
635 }\r
636 screen += 8;\r
637 }\r
638}\r
639\r
640void emu_textOut16(int x, int y, const char *text)\r
641{\r
642 int i,l,len=strlen(text);\r
643 unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;\r
644\r
645 for (i = 0; i < len; i++)\r
646 {\r
647 for (l=0;l<8;l++)\r
648 {\r
649 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
650 if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;\r
651 if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;\r
652 if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;\r
653 if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;\r
654 if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;\r
655 if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;\r
656 if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;\r
657 if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;\r
658 }\r
659 screen += 8;\r
660 }\r
661}\r
662\r
bdec53c9 663void emu_findKeyBindCombos(void)\r
664{\r
665 int act, u;\r
666\r
667 // find out which keys and actions are combos\r
668 kb_combo_keys = kb_combo_acts = 0;\r
669 for (act = 0; act < 32; act++)\r
670 {\r
671 int keyc = 0, keyc2 = 0;\r
672 if (act == 16 || act == 17) continue; // player2 flag\r
673 if (act > 17)\r
674 {\r
675 for (u = 0; u < 32; u++)\r
676 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
677 }\r
678 else\r
679 {\r
680 for (u = 0; u < 32; u++)\r
681 if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1\r
682 (currentConfig.KeyBinds[u] & (1 << act))) keyc++;\r
683 for (u = 0; u < 32; u++)\r
684 if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2\r
685 (currentConfig.KeyBinds[u] & (1 << act))) keyc2++;\r
686 if (keyc2 > keyc) keyc = keyc2;\r
687 }\r
688 if (keyc > 1)\r
689 {\r
690 // loop again and mark those keys and actions as combo\r
691 for (u = 0; u < 32; u++)\r
692 {\r
693 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
694 kb_combo_keys |= 1 << u;\r
695 kb_combo_acts |= 1 << act;\r
696 }\r
697 }\r
698 }\r
699 }\r
700\r
701 // printf("combo keys/acts: %08x %08x\n", kb_combo_keys, kb_combo_acts);\r
702}\r
703\r
ea8c405f 704\r
705void emu_updateMovie(void)\r
706{\r
707 int offs = Pico.m.frame_count*3 + 0x40;\r
708 if (offs+3 > movie_size) {\r
709 free(movie_data);\r
710 movie_data = 0;\r
711 strcpy(noticeMsg, "END OF MOVIE.");\r
712 lprintf("END OF MOVIE.\n");\r
713 emu_noticeMsgUpdated();\r
714 } else {\r
715 // MXYZ SACB RLDU\r
716 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
717 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
718 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
719 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
720 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
721 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
722 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
723 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
724 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
725 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
726 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
727 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
728 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
729 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
730 }\r
731}\r
732\r
733\r
734static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
735{\r
736 return gzread(file, p, _n);\r
737}\r
738\r
739\r
740static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
741{\r
742 return gzwrite(file, p, _n);\r
743}\r
744\r
745static int try_ropen_file(const char *fname)\r
746{\r
747 FILE *f;\r
748\r
749 f = fopen(fname, "rb");\r
750 if (f) {\r
751 fclose(f);\r
752 return 1;\r
753 }\r
754 return 0;\r
755}\r
756\r
757char *emu_GetSaveFName(int load, int is_sram, int slot)\r
758{\r
759 static char saveFname[512];\r
760 char ext[16];\r
761\r
762 if (is_sram)\r
763 {\r
764 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
765 if (load) {\r
766 if (try_ropen_file(saveFname)) return saveFname;\r
767 // try in current dir..\r
768 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
769 if (try_ropen_file(saveFname)) return saveFname;\r
770 return NULL; // give up\r
771 }\r
772 }\r
773 else\r
774 {\r
775 ext[0] = 0;\r
776 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
777 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
778\r
779 romfname_ext(saveFname, "mds/", ext);\r
780 if (load) {\r
781 if (try_ropen_file(saveFname)) return saveFname;\r
782 romfname_ext(saveFname, NULL, ext);\r
783 if (try_ropen_file(saveFname)) return saveFname;\r
784 if (currentConfig.EmuOpt & 8) {\r
785 ext[0] = 0;\r
786 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
787 strcat(ext, ".mds");\r
788\r
789 romfname_ext(saveFname, "mds/", ext);\r
790 if (try_ropen_file(saveFname)) return saveFname;\r
791 romfname_ext(saveFname, NULL, ext);\r
792 if (try_ropen_file(saveFname)) return saveFname;\r
793 }\r
794 return NULL;\r
795 }\r
796 }\r
797\r
798 return saveFname;\r
799}\r
800\r
801int emu_checkSaveFile(int slot)\r
802{\r
803 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
804}\r
805\r
806void emu_setSaveStateCbs(int gz)\r
807{\r
808 if (gz) {\r
809 areaRead = gzRead2;\r
810 areaWrite = gzWrite2;\r
811 areaEof = (areaeof *) gzeof;\r
812 areaSeek = (areaseek *) gzseek;\r
813 areaClose = (areaclose *) gzclose;\r
814 } else {\r
815 areaRead = (arearw *) fread;\r
816 areaWrite = (arearw *) fwrite;\r
817 areaEof = (areaeof *) feof;\r
818 areaSeek = (areaseek *) fseek;\r
819 areaClose = (areaclose *) fclose;\r
820 }\r
821}\r
822\r
823int emu_SaveLoadGame(int load, int sram)\r
824{\r
825 int ret = 0;\r
826 char *saveFname;\r
827\r
828 // make save filename\r
829 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
830 if (saveFname == NULL) {\r
831 if (!sram) {\r
832 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
833 emu_noticeMsgUpdated();\r
834 }\r
835 return -1;\r
836 }\r
837\r
838 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
839\r
da42200b 840 if (sram)\r
841 {\r
ea8c405f 842 FILE *sramFile;\r
843 int sram_size;\r
844 unsigned char *sram_data;\r
845 int truncate = 1;\r
846 if (PicoMCD&1) {\r
847 if (PicoOpt&0x8000) { // MCD RAM cart?\r
848 sram_size = 0x12000;\r
849 sram_data = SRam.data;\r
850 if (sram_data)\r
851 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
852 } else {\r
853 sram_size = 0x2000;\r
854 sram_data = Pico_mcd->bram;\r
855 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
856 }\r
857 } else {\r
858 sram_size = SRam.end-SRam.start+1;\r
859 if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
860 sram_data = SRam.data;\r
861 }\r
862 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
863\r
864 if (load) {\r
865 sramFile = fopen(saveFname, "rb");\r
866 if(!sramFile) return -1;\r
867 fread(sram_data, 1, sram_size, sramFile);\r
868 fclose(sramFile);\r
869 if ((PicoMCD&1) && (PicoOpt&0x8000))\r
870 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
871 } else {\r
872 // sram save needs some special processing\r
873 // see if we have anything to save\r
874 for (; sram_size > 0; sram_size--)\r
875 if (sram_data[sram_size-1]) break;\r
876\r
877 if (sram_size) {\r
878 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
879 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
880 if (!sramFile) return -1;\r
881 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
882 ret = (ret != sram_size) ? -1 : 0;\r
883 fclose(sramFile);\r
884#ifndef NO_SYNC\r
885 sync();\r
886#endif\r
887 }\r
888 }\r
889 return ret;\r
890 }\r
891 else\r
892 {\r
893 void *PmovFile = NULL;\r
da42200b 894 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)\r
895 {\r
ea8c405f 896 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
897 emu_setSaveStateCbs(1);\r
da42200b 898 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
ea8c405f 899 }\r
900 }\r
901 else\r
902 {\r
903 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
904 emu_setSaveStateCbs(0);\r
905 }\r
906 }\r
907 if(PmovFile) {\r
908 ret = PmovState(load ? 6 : 5, PmovFile);\r
909 areaClose(PmovFile);\r
910 PmovFile = 0;\r
911 if (load) Pico.m.dirtyPal=1;\r
912#ifndef NO_SYNC\r
913 else sync();\r
914#endif\r
915 }\r
916 else ret = -1;\r
917 if (!ret)\r
918 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
919 else\r
920 {\r
921 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
922 ret = -1;\r
923 }\r
924\r
925 emu_noticeMsgUpdated();\r
926 return ret;\r
927 }\r
928}\r
bdec53c9 929\r
fast MegaDrive/MegaCD/32X emulator