notaz.gp2x.de / picodrive.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
add gitignore, gitsubmodules
[picodrive.git] / platform / common / emu.c
CommitLineData
bcc9eda0 1// (c) Copyright 2006-2009 notaz, All rights reserved.\r
ea8c405f 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
b24e0f6c 8#include <stdarg.h>\r
ea8c405f 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
713c9224 18#include "plat.h"\r
d34a42f9 19#include "input.h"\r
f2cf8472 20#include "posix.h"\r
ea8c405f 21\r
efcba75f 22#include <pico/pico_int.h>\r
23#include <pico/patch.h>\r
24#include <pico/cd/cue.h>\r
ea8c405f 25\r
ea8c405f 26\r
54646a39 27#define STATUS_MSG_TIMEOUT 2000\r
28\r
e2de9939 29void *g_screen_ptr;\r
30\r
31#if !SCREEN_SIZE_FIXED\r
32int g_screen_width = SCREEN_WIDTH;\r
33int g_screen_height = SCREEN_HEIGHT;\r
34#endif\r
35\r
c46ffd31 36char *PicoConfigFile = "config.cfg";\r
58c86d00 37currentConfig_t currentConfig, defaultConfig;\r
ea8c405f 38int state_slot = 0;\r
39int config_slot = 0, config_slot_current = 0;\r
f2cf8472 40int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
c060a9ab 41int pico_inp_mode = 0;\r
713c9224 42int engineState = PGS_Menu;\r
43\r
ae87bffa 44/* tmp buff to reduce stack usage for plats with small stack */\r
45static char static_buff[512];\r
713c9224 46/* TODO: len checking */\r
ae87bffa 47char rom_fname_reload[512];\r
48char rom_fname_loaded[512];\r
713c9224 49int rom_loaded = 0;\r
f2cf8472 50int reset_timing = 0;\r
b24e0f6c 51static unsigned int notice_msg_time; /* when started showing */\r
52static char noticeMsg[40];\r
ea8c405f 53\r
54unsigned char *movie_data = NULL;\r
55static int movie_size = 0;\r
56\r
ea8c405f 57\r
ee2a3bdf 58/* don't use tolower() for easy old glibc binary compatibility */\r
f8af9634 59static void strlwr_(char *string)\r
ea8c405f 60{\r
f8af9634 61 char *p;\r
62 for (p = string; *p; p++)\r
ee2a3bdf 63 if ('A' <= *p && *p <= 'Z')\r
64 *p += 'a' - 'A';\r
ea8c405f 65}\r
66\r
ca482e5d 67static int try_rfn_cut(char *fname)\r
ea8c405f 68{\r
69 FILE *tmp;\r
70 char *p;\r
71\r
ca482e5d 72 p = fname + strlen(fname) - 1;\r
73 for (; p > fname; p--)\r
ea8c405f 74 if (*p == '.') break;\r
75 *p = 0;\r
76\r
ca482e5d 77 if((tmp = fopen(fname, "rb"))) {\r
ea8c405f 78 fclose(tmp);\r
79 return 1;\r
80 }\r
81 return 0;\r
82}\r
83\r
35e3031a 84static void get_ext(const char *file, char *ext)\r
ea8c405f 85{\r
35e3031a 86 const char *p;\r
ea8c405f 87\r
88 p = file + strlen(file) - 4;\r
89 if (p < file) p = file;\r
90 strncpy(ext, p, 4);\r
91 ext[4] = 0;\r
92 strlwr_(ext);\r
93}\r
94\r
fcdefcf6 95static void fname_ext(char *dst, int dstlen, const char *prefix, const char *ext, const char *fname)\r
96{\r
97 int prefix_len = 0;\r
98 const char *p;\r
99\r
100 *dst = 0;\r
101 if (prefix) {\r
102 int len = plat_get_root_dir(dst, dstlen);\r
103 strcpy(dst + len, prefix);\r
104 prefix_len = len + strlen(prefix);\r
105 }\r
106\r
107 p = fname + strlen(fname) - 1;\r
108 for (; p >= fname && *p != PATH_SEP_C; p--)\r
109 ;\r
110 p++;\r
111 strncpy(dst + prefix_len, p, dstlen - prefix_len - 1);\r
112\r
113 dst[dstlen - 8] = 0;\r
114 if (dst[strlen(dst) - 4] == '.')\r
115 dst[strlen(dst) - 4] = 0;\r
116 if (ext)\r
117 strcat(dst, ext);\r
118}\r
119\r
120static void romfname_ext(char *dst, int dstlen, const char *prefix, const char *ext)\r
121{\r
122 fname_ext(dst, dstlen, prefix, ext, rom_fname_loaded);\r
123}\r
124\r
b24e0f6c 125void emu_status_msg(const char *format, ...)\r
126{\r
127 va_list vl;\r
54646a39 128 int ret;\r
b24e0f6c 129\r
130 va_start(vl, format);\r
54646a39 131 ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);\r
b24e0f6c 132 va_end(vl);\r
133\r
54646a39 134 /* be sure old text gets overwritten */\r
135 for (; ret < 28; ret++)\r
136 noticeMsg[ret] = ' ';\r
137 noticeMsg[ret] = 0;\r
138\r
b24e0f6c 139 notice_msg_time = plat_get_ticks_ms();\r
140}\r
141\r
54646a39 142static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r
143static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r
144static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
ea8c405f 145\r
a47dd663 146static int find_bios(int region, char **bios_file)\r
ea8c405f 147{\r
ea8c405f 148 int i, count;\r
54646a39 149 const char * const *files;\r
ea8c405f 150 FILE *f = NULL;\r
151\r
152 if (region == 4) { // US\r
153 files = biosfiles_us;\r
154 count = sizeof(biosfiles_us) / sizeof(char *);\r
155 } else if (region == 8) { // EU\r
156 files = biosfiles_eu;\r
157 count = sizeof(biosfiles_eu) / sizeof(char *);\r
158 } else if (region == 1 || region == 2) {\r
159 files = biosfiles_jp;\r
160 count = sizeof(biosfiles_jp) / sizeof(char *);\r
161 } else {\r
162 return 0;\r
163 }\r
164\r
165 for (i = 0; i < count; i++)\r
166 {\r
ae87bffa 167 emu_make_path(static_buff, files[i], sizeof(static_buff) - 4);\r
168 strcat(static_buff, ".bin");\r
169 f = fopen(static_buff, "rb");\r
ea8c405f 170 if (f) break;\r
171\r
ae87bffa 172 static_buff[strlen(static_buff) - 4] = 0;\r
173 strcat(static_buff, ".zip");\r
174 f = fopen(static_buff, "rb");\r
ea8c405f 175 if (f) break;\r
176 }\r
177\r
178 if (f) {\r
ae87bffa 179 lprintf("using bios: %s\n", static_buff);\r
ea8c405f 180 fclose(f);\r
ae87bffa 181 if (bios_file)\r
182 *bios_file = static_buff;\r
ea8c405f 183 return 1;\r
184 } else {\r
ae87bffa 185 sprintf(static_buff, "no %s BIOS files found, read docs",\r
ea8c405f 186 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
ae87bffa 187 me_update_msg(static_buff);\r
ea8c405f 188 return 0;\r
189 }\r
190}\r
191\r
c6196c0f 192/* check if the name begins with BIOS name */\r
1ca2ea4f 193/*\r
c6196c0f 194static int emu_isBios(const char *name)\r
195{\r
196 int i;\r
197 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
198 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
199 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
200 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
201 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
202 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
203 return 0;\r
204}\r
1ca2ea4f 205*/\r
c6196c0f 206\r
1ca2ea4f 207static unsigned char id_header[0x100];\r
58c86d00 208\r
3e49ffd0 209/* checks if fname points to valid MegaCD image */\r
35e3031a 210static int emu_cd_check(int *pregion, const char *fname_in)\r
ea8c405f 211{\r
35e3031a 212 const char *fname = fname_in;\r
ea8c405f 213 unsigned char buf[32];\r
214 pm_file *cd_f;\r
9037e45d 215 int region = 4; // 1: Japan, 4: US, 8: Europe\r
35e3031a 216 char ext[5];\r
9037e45d 217 cue_track_type type = CT_UNKNOWN;\r
218 cue_data_t *cue_data = NULL;\r
b923ecbe 219\r
ca482e5d 220 get_ext(fname_in, ext);\r
9037e45d 221 if (strcasecmp(ext, ".cue") == 0) {\r
ca482e5d 222 cue_data = cue_parse(fname_in);\r
9037e45d 223 if (cue_data != NULL) {\r
224 fname = cue_data->tracks[1].fname;\r
225 type = cue_data->tracks[1].type;\r
226 }\r
f9f40f10 227 else\r
228 return -1;\r
9037e45d 229 }\r
230\r
231 cd_f = pm_open(fname);\r
232 if (cue_data != NULL)\r
233 cue_destroy(cue_data);\r
ea8c405f 234\r
f9f40f10 235 if (cd_f == NULL) return 0; // let the upper level handle this\r
ea8c405f 236\r
237 if (pm_read(buf, 32, cd_f) != 32) {\r
238 pm_close(cd_f);\r
f9f40f10 239 return -1;\r
ea8c405f 240 }\r
241\r
9037e45d 242 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {\r
243 if (type && type != CT_ISO)\r
244 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
245 type = CT_ISO; // Sega CD (ISO)\r
246 }\r
247 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {\r
248 if (type && type != CT_BIN)\r
249 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
250 type = CT_BIN; // Sega CD (BIN)\r
251 }\r
252\r
253 if (type == CT_UNKNOWN) {\r
ea8c405f 254 pm_close(cd_f);\r
255 return 0;\r
256 }\r
257\r
9037e45d 258 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);\r
1ca2ea4f 259 pm_read(id_header, sizeof(id_header), cd_f);\r
58c86d00 260\r
ea8c405f 261 /* it seems we have a CD image here. Try to detect region now.. */\r
9037e45d 262 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
ea8c405f 263 pm_read(buf, 1, cd_f);\r
264 pm_close(cd_f);\r
265\r
266 if (buf[0] == 0x64) region = 8; // EU\r
267 if (buf[0] == 0xa1) region = 1; // JAP\r
268\r
269 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
9037e45d 270 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
ea8c405f 271\r
272 if (pregion != NULL) *pregion = region;\r
273\r
274 return type;\r
275}\r
276\r
3e49ffd0 277static int detect_media(const char *fname)\r
278{\r
279 static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 };\r
87b0845f 280 static const char *sms_exts[] = { "sms", "gg", "sg" };\r
281 static const char *md_exts[] = { "gen", "bin", "smd" };\r
282 char buff0[32], buff[32];\r
283 unsigned short *d16;\r
3e49ffd0 284 pm_file *pmf;\r
3e49ffd0 285 char ext[5];\r
286 int i;\r
287\r
288 get_ext(fname, ext);\r
289\r
290 // detect wrong extensions\r
291 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) // s.gz ~ .mds.gz\r
292 return PM_BAD;\r
293\r
294 /* don't believe in extensions, except .cue */\r
295 if (strcasecmp(ext, ".cue") == 0)\r
296 return PM_CD;\r
297\r
298 pmf = pm_open(fname);\r
299 if (pmf == NULL)\r
300 return PM_BAD;\r
301\r
87b0845f 302 if (pm_read(buff0, 32, pmf) != 32) {\r
3e49ffd0 303 pm_close(pmf);\r
304 return PM_BAD;\r
305 }\r
306\r
87b0845f 307 if (strncasecmp("SEGADISCSYSTEM", buff0 + 0x00, 14) == 0 ||\r
308 strncasecmp("SEGADISCSYSTEM", buff0 + 0x10, 14) == 0) {\r
3e49ffd0 309 pm_close(pmf);\r
310 return PM_CD;\r
311 }\r
312\r
87b0845f 313 /* check for SMD evil */\r
314 if (pmf->size >= 0x4200 && (pmf->size & 0x3fff) == 0x200) {\r
315 if (pm_seek(pmf, sms_offsets[0] + 0x200, SEEK_SET) == sms_offsets[0] + 0x200 &&\r
316 pm_read(buff, 16, pmf) == 16 &&\r
317 strncmp("TMR SEGA", buff, 8) == 0)\r
318 goto looks_like_sms;\r
319\r
320 /* could parse further but don't bother */\r
321 goto extension_check;\r
322 }\r
323\r
324 /* MD header? Act as TMSS BIOS here */\r
325 if (pm_seek(pmf, 0x100, SEEK_SET) == 0x100 && pm_read(buff, 16, pmf) == 16) {\r
326 if (strncmp(buff, "SEGA", 4) == 0 || strncmp(buff, " SEG", 4) == 0)\r
327 goto looks_like_md;\r
328 }\r
329\r
3e49ffd0 330 for (i = 0; i < array_size(sms_offsets); i++) {\r
331 if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i])\r
87b0845f 332 continue;\r
3e49ffd0 333\r
334 if (pm_read(buff, 16, pmf) != 16)\r
87b0845f 335 continue;\r
3e49ffd0 336\r
87b0845f 337 if (strncmp("TMR SEGA", buff, 8) == 0)\r
338 goto looks_like_sms;\r
339 }\r
340\r
341extension_check:\r
342 /* probably some headerless thing. Maybe check the extension after all. */\r
343 for (i = 0; i < array_size(md_exts); i++)\r
344 if (strcasecmp(pmf->ext, md_exts[i]) == 0)\r
345 goto looks_like_md;\r
346\r
347 for (i = 0; i < array_size(sms_exts); i++)\r
348 if (strcasecmp(pmf->ext, sms_exts[i]) == 0)\r
349 goto looks_like_sms;\r
350\r
351 /* If everything else fails, make a guess on the reset vector */\r
352 d16 = (unsigned short *)(buff0 + 4);\r
353 if ((((d16[0] << 16) | d16[1]) & 0xffffff) >= pmf->size) {\r
354 lprintf("bad MD reset vector, assuming SMS\n");\r
355 goto looks_like_sms;\r
3e49ffd0 356 }\r
357\r
87b0845f 358looks_like_md:\r
3e49ffd0 359 pm_close(pmf);\r
3e49ffd0 360 return PM_MD_CART;\r
87b0845f 361\r
362looks_like_sms:\r
363 pm_close(pmf);\r
364 return PM_MARK3;\r
3e49ffd0 365}\r
366\r
7a87643e 367static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r
58c86d00 368{\r
369 char *p = dest;\r
370 int i;\r
371\r
372 if (swab) swab = 1;\r
373\r
374 for (i = len - 1; i >= 0; i--)\r
375 {\r
376 if (src[i^swab] != ' ') break;\r
377 }\r
378 len = i + 1;\r
379\r
380 for (i = 0; i < len; i++)\r
381 {\r
382 unsigned char s = src[i^swab];\r
383 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
384 s != '[' && s != ']' && s != '\\')\r
385 {\r
386 *p++ = s;\r
387 }\r
388 else\r
389 {\r
390 sprintf(p, "\\%02x", s);\r
391 p += 3;\r
392 }\r
393 }\r
394\r
395 return p - dest;\r
396}\r
397\r
fcdefcf6 398static char *emu_make_rom_id(const char *fname)\r
58c86d00 399{\r
ca482e5d 400 static char id_string[3+0xe*3+0x3*3+0x30*3+3];\r
bdec53c9 401 int pos, swab = 1;\r
58c86d00 402\r
602133e1 403 if (PicoAHW & PAHW_MCD) {\r
bdec53c9 404 strcpy(id_string, "CD|");\r
405 swab = 0;\r
406 }\r
fcdefcf6 407 else if (PicoAHW & PAHW_SMS)\r
408 strcpy(id_string, "MS|");\r
409 else strcpy(id_string, "MD|");\r
58c86d00 410 pos = 3;\r
411\r
fcdefcf6 412 if (!(PicoAHW & PAHW_SMS)) {\r
413 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r
414 id_string[pos] = '|'; pos++;\r
415 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r
416 id_string[pos] = '|'; pos++;\r
417 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r
418 id_string[pos] = 0;\r
419 if (pos > 5)\r
420 return id_string;\r
421 pos = 3;\r
422 }\r
423\r
424 // can't find name in ROM, use filename\r
425 fname_ext(id_string + 3, sizeof(id_string) - 3, NULL, NULL, fname);\r
58c86d00 426\r
58c86d00 427 return id_string;\r
428}\r
429\r
ca482e5d 430// buffer must be at least 150 byte long\r
a47dd663 431void emu_get_game_name(char *str150)\r
ca482e5d 432{\r
433 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;\r
434 char *s, *d;\r
435\r
436 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name\r
437\r
438 for (s = d = str150 + 1; s < str150+ret; s++)\r
439 {\r
440 if (*s == 0) break;\r
441 if (*s != ' ' || d[-1] != ' ')\r
442 *d++ = *s;\r
443 }\r
444 *d = 0;\r
445}\r
446\r
a47dd663 447static void shutdown_MCD(void)\r
448{\r
449 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)\r
450 Stop_CD();\r
451 PicoAHW &= ~PAHW_MCD;\r
452}\r
453\r
974fdb5b 454static void system_announce(void)\r
455{\r
f3a57b2d 456 const char *sys_name, *tv_standard, *extra = "";\r
974fdb5b 457 int fps;\r
458\r
459 if (PicoAHW & PAHW_SMS) {\r
460 sys_name = "Master System";\r
f3a57b2d 461#ifdef NO_SMS\r
462 extra = " [no support]";\r
463#endif\r
974fdb5b 464 } else if (PicoAHW & PAHW_PICO) {\r
465 sys_name = "Pico";\r
466 } else if (PicoAHW & PAHW_MCD) {\r
467 sys_name = "Mega CD";\r
468 if ((Pico.m.hardware & 0xc0) == 0x80)\r
469 sys_name = "Sega CD";\r
470 } else if (PicoAHW & PAHW_32X) {\r
471 sys_name = "32X";\r
472 } else {\r
473 sys_name = "MegaDrive";\r
474 if ((Pico.m.hardware & 0xc0) == 0x80)\r
475 sys_name = "Genesis";\r
476 }\r
477 tv_standard = Pico.m.pal ? "PAL" : "NTSC";\r
478 fps = Pico.m.pal ? 50 : 60;\r
479\r
f3a57b2d 480 emu_status_msg("%s %s / %dFPS%s", tv_standard, sys_name, fps, extra);\r
974fdb5b 481}\r
482\r
ca482e5d 483// note: this function might mangle rom_fname\r
3e49ffd0 484// XXX: portions of this code should move to pico/\r
a47dd663 485int emu_reload_rom(char *rom_fname)\r
ea8c405f 486{\r
487 unsigned int rom_size = 0;\r
ca482e5d 488 char *used_rom_name = rom_fname;\r
eacee137 489 unsigned char *rom_data = NULL;\r
ea8c405f 490 char ext[5];\r
f9f40f10 491 pm_file *rom = NULL;\r
3e49ffd0 492 int cd_state = CIT_NOT_CD;\r
493 int ret, media_type, cd_region;\r
494 int cfg_loaded = 0, bad_rom = 0;\r
ea8c405f 495\r
ca482e5d 496 lprintf("emu_ReloadRom(%s)\n", rom_fname);\r
ea8c405f 497\r
ca482e5d 498 get_ext(rom_fname, ext);\r
ea8c405f 499\r
77189b7d 500 // early cleanup\r
501 PicoPatchUnload();\r
eacee137 502 if (movie_data) {\r
ea8c405f 503 free(movie_data);\r
504 movie_data = 0;\r
505 }\r
77189b7d 506\r
2d2247c2 507 if (!strcmp(ext, ".gmv"))\r
508 {\r
ea8c405f 509 // check for both gmv and rom\r
510 int dummy;\r
ca482e5d 511 FILE *movie_file = fopen(rom_fname, "rb");\r
b8a1c09a 512 if (!movie_file) {\r
c6c6c9cd 513 me_update_msg("Failed to open movie.");\r
ea8c405f 514 return 0;\r
515 }\r
516 fseek(movie_file, 0, SEEK_END);\r
517 movie_size = ftell(movie_file);\r
518 fseek(movie_file, 0, SEEK_SET);\r
b8a1c09a 519 if (movie_size < 64+3) {\r
c6c6c9cd 520 me_update_msg("Invalid GMV file.");\r
ea8c405f 521 fclose(movie_file);\r
522 return 0;\r
523 }\r
524 movie_data = malloc(movie_size);\r
b8a1c09a 525 if (movie_data == NULL) {\r
c6c6c9cd 526 me_update_msg("low memory.");\r
ea8c405f 527 fclose(movie_file);\r
528 return 0;\r
529 }\r
b8a1c09a 530 dummy = fread(movie_data, 1, movie_size, movie_file);\r
ea8c405f 531 fclose(movie_file);\r
532 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
c6c6c9cd 533 me_update_msg("Invalid GMV file.");\r
ea8c405f 534 return 0;\r
535 }\r
ca482e5d 536 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
ea8c405f 537 if (!dummy) {\r
c6c6c9cd 538 me_update_msg("Could't find a ROM for movie.");\r
ea8c405f 539 return 0;\r
540 }\r
ca482e5d 541 get_ext(rom_fname, ext);\r
f8af9634 542 lprintf("gmv loaded for %s\n", rom_fname);\r
ea8c405f 543 }\r
ca482e5d 544 else if (!strcmp(ext, ".pat"))\r
545 {\r
ea8c405f 546 int dummy;\r
ca482e5d 547 PicoPatchLoad(rom_fname);\r
548 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
ea8c405f 549 if (!dummy) {\r
c6c6c9cd 550 me_update_msg("Could't find a ROM to patch.");\r
ea8c405f 551 return 0;\r
552 }\r
ca482e5d 553 get_ext(rom_fname, ext);\r
ea8c405f 554 }\r
555\r
3e49ffd0 556 media_type = detect_media(rom_fname);\r
557 if (media_type == PM_BAD) {\r
558 me_update_msg("Not a ROM/CD img selected.");\r
559 return 0;\r
560 }\r
561\r
a47dd663 562 shutdown_MCD();\r
5e49c3a8 563 PicoCartUnload();\r
564 rom_loaded = 0;\r
565\r
87b0845f 566 PicoAHW = 0;\r
ea8c405f 567\r
3e49ffd0 568 if (media_type == PM_CD)\r
ea8c405f 569 {\r
3e49ffd0 570 // check for MegaCD image\r
571 cd_state = emu_cd_check(&cd_region, rom_fname);\r
572 if (cd_state >= 0 && cd_state != CIT_NOT_CD)\r
573 {\r
574 // valid CD image, check for BIOS..\r
ea8c405f 575\r
3e49ffd0 576 // we need to have config loaded at this point\r
fcdefcf6 577 ret = emu_read_config(rom_fname, 0);\r
578 if (!ret) emu_read_config(NULL, 0);\r
3e49ffd0 579 cfg_loaded = 1;\r
ea8c405f 580\r
3e49ffd0 581 if (PicoRegionOverride) {\r
582 cd_region = PicoRegionOverride;\r
583 lprintf("override region to %s\n", cd_region != 4 ?\r
584 (cd_region == 8 ? "EU" : "JAP") : "USA");\r
585 }\r
586 if (!find_bios(cd_region, &used_rom_name))\r
587 return 0;\r
588\r
589 get_ext(used_rom_name, ext);\r
590 PicoAHW |= PAHW_MCD;\r
ea8c405f 591 }\r
3e49ffd0 592 else {\r
593 me_update_msg("Invalid CD image");\r
ea8c405f 594 return 0;\r
595 }\r
ea8c405f 596 }\r
3e49ffd0 597 else if (media_type == PM_MARK3) {\r
598 lprintf("detected SMS ROM\n");\r
599 PicoAHW = PAHW_SMS;\r
ea8c405f 600 }\r
601\r
602 rom = pm_open(used_rom_name);\r
3e49ffd0 603 if (rom == NULL) {\r
604 me_update_msg("Failed to open ROM");\r
605 return 0;\r
ea8c405f 606 }\r
607\r
4b167c12 608 menu_romload_prepare(used_rom_name); // also CD load\r
ae87bffa 609 used_rom_name = NULL; // uses static_buff\r
ea8c405f 610\r
3e49ffd0 611 ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);\r
612 pm_close(rom);\r
613 if (ret != 0) {\r
c6c6c9cd 614 if (ret == 2) me_update_msg("Out of memory");\r
615 else if (ret == 3) me_update_msg("Read failed");\r
616 else me_update_msg("PicoCartLoad() failed.");\r
3e49ffd0 617 goto fail;\r
618 }\r
619\r
620 // detect wrong files\r
621 if (strncmp((char *)rom_data, "Pico", 4) == 0)\r
622 bad_rom = 1;\r
623 else if (!(PicoAHW & PAHW_SMS)) {\r
624 unsigned short *d = (unsigned short *)(rom_data + 4);\r
625 if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {\r
626 lprintf("bad reset vector\n");\r
627 bad_rom = 1;\r
628 }\r
ea8c405f 629 }\r
ea8c405f 630\r
3e49ffd0 631 if (bad_rom) {\r
632 me_update_msg("Bad ROM detected.");\r
633 goto fail;\r
ea8c405f 634 }\r
635\r
636 // load config for this ROM (do this before insert to get correct region)\r
602133e1 637 if (!(PicoAHW & PAHW_MCD))\r
1ca2ea4f 638 memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r
ea8c405f 639 if (!cfg_loaded) {\r
fcdefcf6 640 ret = emu_read_config(rom_fname, 0);\r
641 if (!ret) emu_read_config(NULL, 0);\r
ea8c405f 642 }\r
643\r
ae87bffa 644 emu_make_path(static_buff, "carthw.cfg", sizeof(static_buff));\r
645 if (PicoCartInsert(rom_data, rom_size, static_buff)) {\r
c6c6c9cd 646 me_update_msg("Failed to load ROM.");\r
3e49ffd0 647 goto fail;\r
ea8c405f 648 }\r
649\r
ea8c405f 650 // insert CD if it was detected\r
b923ecbe 651 if (cd_state != CIT_NOT_CD) {\r
ca482e5d 652 ret = Insert_CD(rom_fname, cd_state);\r
ea8c405f 653 if (ret != 0) {\r
3e49ffd0 654 PicoCartUnload();\r
655 rom_data = NULL; // freed by unload\r
c6c6c9cd 656 me_update_msg("Insert_CD() failed, invalid CD image?");\r
3e49ffd0 657 goto fail;\r
ea8c405f 658 }\r
659 }\r
660\r
4b167c12 661 menu_romload_end();\r
662\r
ea8c405f 663 if (PicoPatches) {\r
664 PicoPatchPrepare();\r
665 PicoPatchApply();\r
666 }\r
667\r
668 // additional movie stuff\r
f9f40f10 669 if (movie_data)\r
670 {\r
671 if (movie_data[0x14] == '6')\r
602133e1 672 PicoOpt |= POPT_6BTN_PAD; // 6 button pad\r
673 else PicoOpt &= ~POPT_6BTN_PAD;\r
2aa27095 674 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
f9f40f10 675 if (movie_data[0xF] >= 'A') {\r
676 if (movie_data[0x16] & 0x80) {\r
ea8c405f 677 PicoRegionOverride = 8;\r
678 } else {\r
679 PicoRegionOverride = 4;\r
680 }\r
1cb1584b 681 PicoReset();\r
ea8c405f 682 // TODO: bits 6 & 5\r
683 }\r
684 movie_data[0x18+30] = 0;\r
b24e0f6c 685 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);\r
ea8c405f 686 }\r
687 else\r
688 {\r
974fdb5b 689 system_announce();\r
602133e1 690 PicoOpt &= ~POPT_DIS_VDP_FIFO;\r
ea8c405f 691 }\r
ea8c405f 692\r
bcc9eda0 693 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);\r
694 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
695 rom_loaded = 1;\r
696\r
ea8c405f 697 // load SRAM for this ROM\r
a47dd663 698 if (currentConfig.EmuOpt & EOPT_EN_SRAM)\r
699 emu_save_load_game(1, 1);\r
ea8c405f 700\r
701 return 1;\r
f9f40f10 702\r
f9f40f10 703fail:\r
3e49ffd0 704 if (rom_data)\r
705 free(rom_data);\r
706 menu_romload_end();\r
f9f40f10 707 return 0;\r
ea8c405f 708}\r
709\r
35e3031a 710int emu_swap_cd(const char *fname)\r
711{\r
712 cd_img_type cd_type;\r
713 int ret = -1;\r
714\r
715 cd_type = emu_cd_check(NULL, fname);\r
716 if (cd_type != CIT_NOT_CD)\r
717 ret = Insert_CD(fname, cd_type);\r
718 if (ret != 0) {\r
719 me_update_msg("Load failed, invalid CD image?");\r
720 return 0;\r
721 }\r
722\r
723 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);\r
724 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
725 return 1;\r
726}\r
727\r
ae87bffa 728// <base dir><end>\r
27701801 729void emu_make_path(char *buff, const char *end, int size)\r
08fe8094 730{\r
27701801 731 int pos, end_len;\r
732\r
733 end_len = strlen(end);\r
734 pos = plat_get_root_dir(buff, size);\r
735 strncpy(buff + pos, end, size - pos);\r
736 buff[size - 1] = 0;\r
737 if (pos + end_len > size - 1)\r
738 lprintf("Warning: path truncated: %s\n", buff);\r
739}\r
740\r
741static void make_config_cfg(char *cfg_buff_512)\r
742{\r
743 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);\r
08fe8094 744 if (config_slot != 0)\r
745 {\r
27701801 746 char *p = strrchr(cfg_buff_512, '.');\r
747 if (p == NULL)\r
748 p = cfg_buff_512 + strlen(cfg_buff_512);\r
08fe8094 749 sprintf(p, ".%i.cfg", config_slot);\r
750 }\r
27701801 751 cfg_buff_512[511] = 0;\r
08fe8094 752}\r
753\r
697746df 754void emu_prep_defconfig(void)\r
755{\r
756 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
fcdefcf6 757 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_EN_CD_LEDS;\r
697746df 758 defaultConfig.s_PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |\r
759 POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES |\r
760 POPT_EN_32X|POPT_EN_PWM;\r
761 defaultConfig.s_PsndRate = 44100;\r
762 defaultConfig.s_PicoRegion = 0; // auto\r
763 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
764 defaultConfig.s_PicoCDBuffers = 0;\r
fcdefcf6 765 defaultConfig.confirm_save = EOPT_CONFIRM_SAVE;\r
697746df 766 defaultConfig.Frameskip = -1; // auto\r
767 defaultConfig.volume = 50;\r
768 defaultConfig.gamma = 100;\r
769 defaultConfig.scaling = 0;\r
770 defaultConfig.turbo_rate = 15;\r
771\r
772 // platform specific overrides\r
773 pemu_prep_defconfig();\r
774}\r
775\r
d90f5bd7 776void emu_set_defconfig(void)\r
ca482e5d 777{\r
a47dd663 778 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
ca482e5d 779 PicoOpt = currentConfig.s_PicoOpt;\r
780 PsndRate = currentConfig.s_PsndRate;\r
781 PicoRegionOverride = currentConfig.s_PicoRegion;\r
782 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
783 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
fcdefcf6 784 p32x_msh2_multiplier = MSH2_MULTI_DEFAULT;\r
785 p32x_ssh2_multiplier = SSH2_MULTI_DEFAULT;\r
ca482e5d 786}\r
787\r
fcdefcf6 788int emu_read_config(const char *rom_fname, int no_defaults)\r
ea8c405f 789{\r
58c86d00 790 char cfg[512];\r
58c86d00 791 int ret;\r
ea8c405f 792\r
490eb480 793 if (!no_defaults)\r
794 emu_set_defconfig();\r
795\r
fcdefcf6 796 if (rom_fname == NULL)\r
ea8c405f 797 {\r
fcdefcf6 798 // global config\r
08fe8094 799 make_config_cfg(cfg);\r
58c86d00 800 ret = config_readsect(cfg, NULL);\r
ea8c405f 801 }\r
58c86d00 802 else\r
803 {\r
fcdefcf6 804 char *sect = emu_make_rom_id(rom_fname);\r
ea8c405f 805\r
58c86d00 806 if (config_slot != 0)\r
807 sprintf(cfg, "game.%i.cfg", config_slot);\r
808 else strcpy(cfg, "game.cfg");\r
1ca2ea4f 809\r
810 ret = -1;\r
08fe8094 811 if (config_havesect(cfg, sect))\r
812 {\r
813 // read user's config\r
7b802576 814 int vol = currentConfig.volume;\r
d90f5bd7 815 emu_set_defconfig();\r
1ca2ea4f 816 ret = config_readsect(cfg, sect);\r
7b802576 817 currentConfig.volume = vol; // make vol global (bah)\r
1ca2ea4f 818 }\r
a39b7867 819 else\r
08fe8094 820 {\r
821 // read global config, and apply game_def.cfg on top\r
822 make_config_cfg(cfg);\r
823 config_readsect(cfg, NULL);\r
d8afe7b8 824 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));\r
825 ret = config_readsect(cfg, sect);\r
08fe8094 826 }\r
58c86d00 827\r
ca482e5d 828 if (ret == 0)\r
58c86d00 829 {\r
1ca2ea4f 830 lprintf("loaded cfg from sect \"%s\"\n", sect);\r
58c86d00 831 }\r
ea8c405f 832 }\r
58c86d00 833\r
697746df 834 pemu_validate_config();\r
ee2a3bdf 835\r
ea8c405f 836 // some sanity checks\r
2445b7cb 837#ifdef PSP\r
ee2a3bdf 838 /* TODO: mv to plat_validate_config() */\r
839 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
2445b7cb 840 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
6fc57144 841 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
2445b7cb 842#endif\r
ee2a3bdf 843 if (currentConfig.volume < 0 || currentConfig.volume > 99)\r
844 currentConfig.volume = 50;\r
845\r
846 if (ret == 0)\r
847 config_slot_current = config_slot;\r
991473ad 848\r
58c86d00 849 return (ret == 0);\r
ea8c405f 850}\r
851\r
852\r
a47dd663 853int emu_write_config(int is_game)\r
ea8c405f 854{\r
58c86d00 855 char cfg[512], *game_sect = NULL;\r
856 int ret, write_lrom = 0;\r
ea8c405f 857\r
58c86d00 858 if (!is_game)\r
ea8c405f 859 {\r
ca482e5d 860 make_config_cfg(cfg);\r
58c86d00 861 write_lrom = 1;\r
ea8c405f 862 } else {\r
863 if (config_slot != 0)\r
58c86d00 864 sprintf(cfg, "game.%i.cfg", config_slot);\r
865 else strcpy(cfg, "game.cfg");\r
fcdefcf6 866 game_sect = emu_make_rom_id(rom_fname_loaded);\r
a47dd663 867 lprintf("emu_write_config: sect \"%s\"\n", game_sect);\r
ea8c405f 868 }\r
869\r
a47dd663 870 lprintf("emu_write_config: %s ", cfg);\r
58c86d00 871 ret = config_writesect(cfg, game_sect);\r
1ca2ea4f 872 if (write_lrom) config_writelrom(cfg);\r
ea8c405f 873#ifndef NO_SYNC\r
58c86d00 874 sync();\r
ea8c405f 875#endif\r
58c86d00 876 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
ea8c405f 877\r
58c86d00 878 if (ret == 0) config_slot_current = config_slot;\r
879 return ret == 0;\r
ea8c405f 880}\r
881\r
882\r
e2de9939 883/* always using built-in font */\r
884\r
cc41eb4f 885#define mk_text_out(name, type, val, topleft, step_x, step_y) \\r
e2de9939 886void name(int x, int y, const char *text) \\r
887{ \\r
888 int i, l, len = strlen(text); \\r
cc41eb4f 889 type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r
e2de9939 890 \\r
cc41eb4f 891 for (i = 0; i < len; i++, screen += 8 * step_x) \\r
e2de9939 892 { \\r
893 for (l = 0; l < 8; l++) \\r
894 { \\r
895 unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r
cc41eb4f 896 type *s = screen + l * step_y; \\r
897 if (fd&0x80) s[step_x * 0] = val; \\r
898 if (fd&0x40) s[step_x * 1] = val; \\r
899 if (fd&0x20) s[step_x * 2] = val; \\r
900 if (fd&0x10) s[step_x * 3] = val; \\r
901 if (fd&0x08) s[step_x * 4] = val; \\r
902 if (fd&0x04) s[step_x * 5] = val; \\r
903 if (fd&0x02) s[step_x * 6] = val; \\r
904 if (fd&0x01) s[step_x * 7] = val; \\r
e2de9939 905 } \\r
906 } \\r
ea8c405f 907}\r
908\r
cc41eb4f 909mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r
910mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r
911mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r
912 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
913mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r
914 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
ea8c405f 915\r
e2de9939 916#undef mk_text_out\r
ea8c405f 917\r
918\r
d34a42f9 919void update_movie(void)\r
ea8c405f 920{\r
921 int offs = Pico.m.frame_count*3 + 0x40;\r
922 if (offs+3 > movie_size) {\r
923 free(movie_data);\r
924 movie_data = 0;\r
b24e0f6c 925 emu_status_msg("END OF MOVIE.");\r
ea8c405f 926 lprintf("END OF MOVIE.\n");\r
ea8c405f 927 } else {\r
928 // MXYZ SACB RLDU\r
929 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
f8af9634 930 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C\r
931 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A\r
932 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B\r
ea8c405f 933 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
f8af9634 934 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C\r
935 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A\r
936 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B\r
ea8c405f 937 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
938 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
939 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
940 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
941 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
942 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
943 }\r
944}\r
945\r
ea8c405f 946static int try_ropen_file(const char *fname)\r
947{\r
948 FILE *f;\r
949\r
950 f = fopen(fname, "rb");\r
951 if (f) {\r
952 fclose(f);\r
953 return 1;\r
954 }\r
955 return 0;\r
956}\r
957\r
a47dd663 958char *emu_get_save_fname(int load, int is_sram, int slot)\r
ea8c405f 959{\r
ae87bffa 960 char *saveFname = static_buff;\r
ea8c405f 961 char ext[16];\r
962\r
963 if (is_sram)\r
964 {\r
6bc00695 965 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r
fcdefcf6 966 romfname_ext(saveFname, sizeof(static_buff),\r
967 (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);\r
6bc00695 968 if (!load)\r
969 return saveFname;\r
970\r
971 if (try_ropen_file(saveFname))\r
972 return saveFname;\r
973\r
fcdefcf6 974 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
6bc00695 975 if (try_ropen_file(saveFname))\r
976 return saveFname;\r
ea8c405f 977 }\r
978 else\r
979 {\r
6bc00695 980 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";\r
981 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";\r
ea8c405f 982 ext[0] = 0;\r
6bc00695 983 if (slot > 0 && slot < 10)\r
984 sprintf(ext, ".%i", slot);\r
985 strcat(ext, ext_main);\r
986\r
987 if (!load) {\r
fcdefcf6 988 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
6bc00695 989 return saveFname;\r
990 }\r
991 else {\r
fcdefcf6 992 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
6bc00695 993 if (try_ropen_file(saveFname))\r
994 return saveFname;\r
ea8c405f 995\r
fcdefcf6 996 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
6bc00695 997 if (try_ropen_file(saveFname))\r
998 return saveFname;\r
999\r
1000 // try the other ext\r
1001 ext[0] = 0;\r
1002 if (slot > 0 && slot < 10)\r
1003 sprintf(ext, ".%i", slot);\r
1004 strcat(ext, ext_othr);\r
1005\r
fcdefcf6 1006 romfname_ext(saveFname, sizeof(static_buff), "mds"PATH_SEP, ext);\r
6bc00695 1007 if (try_ropen_file(saveFname))\r
1008 return saveFname;\r
ea8c405f 1009 }\r
1010 }\r
1011\r
6bc00695 1012 return NULL;\r
ea8c405f 1013}\r
1014\r
cca8800d 1015int emu_check_save_file(int slot, int *time)\r
ea8c405f 1016{\r
a47dd663 1017 return emu_get_save_fname(1, 0, slot) ? 1 : 0;\r
ea8c405f 1018}\r
1019\r
a47dd663 1020int emu_save_load_game(int load, int sram)\r
ea8c405f 1021{\r
1022 int ret = 0;\r
1023 char *saveFname;\r
1024\r
1025 // make save filename\r
a47dd663 1026 saveFname = emu_get_save_fname(load, sram, state_slot);\r
ea8c405f 1027 if (saveFname == NULL) {\r
d34a42f9 1028 if (!sram)\r
b24e0f6c 1029 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r
ea8c405f 1030 return -1;\r
1031 }\r
1032\r
1033 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1034\r
da42200b 1035 if (sram)\r
1036 {\r
ea8c405f 1037 FILE *sramFile;\r
1038 int sram_size;\r
1039 unsigned char *sram_data;\r
1040 int truncate = 1;\r
602133e1 1041 if (PicoAHW & PAHW_MCD)\r
1042 {\r
45f2f245 1043 if (PicoOpt & POPT_EN_MCD_RAMCART) {\r
ea8c405f 1044 sram_size = 0x12000;\r
1045 sram_data = SRam.data;\r
1046 if (sram_data)\r
1047 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
1048 } else {\r
1049 sram_size = 0x2000;\r
1050 sram_data = Pico_mcd->bram;\r
1051 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
1052 }\r
1053 } else {\r
45f2f245 1054 sram_size = SRam.size;\r
ea8c405f 1055 sram_data = SRam.data;\r
1056 }\r
b8a1c09a 1057 if (sram_data == NULL)\r
1058 return 0; // SRam forcefully disabled for this game\r
ea8c405f 1059\r
602133e1 1060 if (load)\r
1061 {\r
ea8c405f 1062 sramFile = fopen(saveFname, "rb");\r
b8a1c09a 1063 if (!sramFile)\r
1064 return -1;\r
1065 ret = fread(sram_data, 1, sram_size, sramFile);\r
1066 ret = ret > 0 ? 0 : -1;\r
ea8c405f 1067 fclose(sramFile);\r
602133e1 1068 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r
ea8c405f 1069 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
1070 } else {\r
1071 // sram save needs some special processing\r
1072 // see if we have anything to save\r
1073 for (; sram_size > 0; sram_size--)\r
1074 if (sram_data[sram_size-1]) break;\r
1075\r
1076 if (sram_size) {\r
1077 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
1078 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
1079 if (!sramFile) return -1;\r
1080 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
1081 ret = (ret != sram_size) ? -1 : 0;\r
1082 fclose(sramFile);\r
1083#ifndef NO_SYNC\r
1084 sync();\r
1085#endif\r
1086 }\r
1087 }\r
1088 return ret;\r
1089 }\r
1090 else\r
1091 {\r
bcc9eda0 1092 ret = PicoState(saveFname, !load);\r
1093 if (!ret) {\r
ea8c405f 1094#ifndef NO_SYNC\r
bcc9eda0 1095 if (!load) sync();\r
ea8c405f 1096#endif\r
54646a39 1097 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");\r
bcc9eda0 1098 } else {\r
b24e0f6c 1099 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r
ea8c405f 1100 ret = -1;\r
1101 }\r
1102\r
ea8c405f 1103 return ret;\r
1104 }\r
1105}\r
bdec53c9 1106\r
a47dd663 1107void emu_set_fastforward(int set_on)\r
c060a9ab 1108{\r
1109 static void *set_PsndOut = NULL;\r
1110 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
1111\r
1112 if (set_on && !is_on) {\r
1113 set_PsndOut = PsndOut;\r
1114 set_Frameskip = currentConfig.Frameskip;\r
1115 set_EmuOpt = currentConfig.EmuOpt;\r
1116 PsndOut = NULL;\r
1117 currentConfig.Frameskip = 8;\r
1118 currentConfig.EmuOpt &= ~4;\r
1119 currentConfig.EmuOpt |= 0x40000;\r
1120 is_on = 1;\r
b24e0f6c 1121 emu_status_msg("FAST FORWARD");\r
c060a9ab 1122 }\r
1123 else if (!set_on && is_on) {\r
1124 PsndOut = set_PsndOut;\r
1125 currentConfig.Frameskip = set_Frameskip;\r
1126 currentConfig.EmuOpt = set_EmuOpt;\r
1127 PsndRerate(1);\r
1128 is_on = 0;\r
1129 }\r
1130}\r
1131\r
d687ef50 1132static void emu_tray_open(void)\r
c060a9ab 1133{\r
d687ef50 1134 engineState = PGS_TrayMenu;\r
1135}\r
1136\r
1137static void emu_tray_close(void)\r
1138{\r
1139 emu_status_msg("CD tray closed.");\r
f2cf8472 1140}\r
1141\r
974fdb5b 1142void emu_32x_startup(void)\r
1143{\r
c7eb229a 1144 plat_video_toggle_renderer(0, 0); // HACK\r
974fdb5b 1145 system_announce();\r
c7eb229a 1146\r
1147 // force mode change event\r
1148 rendstatus_old = -1;\r
974fdb5b 1149}\r
1150\r
f2cf8472 1151void emu_reset_game(void)\r
1152{\r
1153 PicoReset();\r
1154 reset_timing = 1;\r
1155}\r
1156\r
1157void run_events_pico(unsigned int events)\r
1158{\r
1159 int lim_x;\r
1160\r
1161 if (events & PEV_PICO_SWINP) {\r
c060a9ab 1162 pico_inp_mode++;\r
d34a42f9 1163 if (pico_inp_mode > 2)\r
1164 pico_inp_mode = 0;\r
c060a9ab 1165 switch (pico_inp_mode) {\r
b24e0f6c 1166 case 2: emu_status_msg("Input: Pen on Pad"); break;\r
1167 case 1: emu_status_msg("Input: Pen on Storyware"); break;\r
1168 case 0: emu_status_msg("Input: Joystick");\r
c060a9ab 1169 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
1170 break;\r
1171 }\r
c060a9ab 1172 }\r
f2cf8472 1173 if (events & PEV_PICO_PPREV) {\r
c060a9ab 1174 PicoPicohw.page--;\r
d34a42f9 1175 if (PicoPicohw.page < 0)\r
1176 PicoPicohw.page = 0;\r
b24e0f6c 1177 emu_status_msg("Page %i", PicoPicohw.page);\r
c060a9ab 1178 }\r
f2cf8472 1179 if (events & PEV_PICO_PNEXT) {\r
c060a9ab 1180 PicoPicohw.page++;\r
d34a42f9 1181 if (PicoPicohw.page > 6)\r
1182 PicoPicohw.page = 6;\r
b24e0f6c 1183 emu_status_msg("Page %i", PicoPicohw.page);\r
c060a9ab 1184 }\r
f2cf8472 1185\r
1186 if (pico_inp_mode == 0)\r
1187 return;\r
1188\r
1189 /* handle other input modes */\r
1190 if (PicoPad[0] & 1) pico_pen_y--;\r
1191 if (PicoPad[0] & 2) pico_pen_y++;\r
1192 if (PicoPad[0] & 4) pico_pen_x--;\r
1193 if (PicoPad[0] & 8) pico_pen_x++;\r
1194 PicoPad[0] &= ~0x0f; // release UDLR\r
1195\r
1196 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
1197 if (pico_pen_y < 8)\r
1198 pico_pen_y = 8;\r
1199 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r
1200 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r
1201 if (pico_pen_x < 0)\r
1202 pico_pen_x = 0;\r
1203 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r
1204 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r
1205\r
1206 PicoPicohw.pen_pos[0] = pico_pen_x;\r
1207 if (!(Pico.video.reg[12] & 1))\r
1208 PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r
1209 PicoPicohw.pen_pos[0] += 0x3c;\r
1210 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
c060a9ab 1211}\r
1212\r
d34a42f9 1213static void do_turbo(int *pad, int acts)\r
f0f0d2df 1214{\r
1215 static int turbo_pad = 0;\r
1216 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1217 int inc = currentConfig.turbo_rate * 2;\r
1218\r
1219 if (acts & 0x1000) {\r
1220 turbo_cnt[0] += inc;\r
1221 if (turbo_cnt[0] >= 60)\r
1222 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1223 }\r
1224 if (acts & 0x2000) {\r
1225 turbo_cnt[1] += inc;\r
1226 if (turbo_cnt[1] >= 60)\r
1227 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1228 }\r
1229 if (acts & 0x4000) {\r
1230 turbo_cnt[2] += inc;\r
1231 if (turbo_cnt[2] >= 60)\r
1232 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1233 }\r
1234 *pad |= turbo_pad & (acts >> 8);\r
1235}\r
c060a9ab 1236\r
f2cf8472 1237static void run_events_ui(unsigned int which)\r
d34a42f9 1238{\r
1239 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r
1240 {\r
1241 int do_it = 1;\r
cca8800d 1242 if ( emu_check_save_file(state_slot, NULL) &&\r
fcdefcf6 1243 (((which & PEV_STATE_LOAD) && (currentConfig.confirm_save & EOPT_CONFIRM_LOAD)) ||\r
1244 ((which & PEV_STATE_SAVE) && (currentConfig.confirm_save & EOPT_CONFIRM_SAVE))) )\r
d34a42f9 1245 {\r
1246 const char *nm;\r
1247 char tmp[64];\r
1248 int keys, len;\r
1249\r
1250 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");\r
1251 len = strlen(tmp);\r
1252 nm = in_get_key_name(-1, -PBTN_MA3);\r
1253 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
1254 len = strlen(tmp);\r
1255 nm = in_get_key_name(-1, -PBTN_MBACK);\r
1256 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
1257\r
1258 plat_status_msg_busy_first(tmp);\r
1259\r
45285368 1260 in_set_config_int(0, IN_CFG_BLOCKING, 1);\r
13450307 1261 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))\r
d34a42f9 1262 ;\r
13450307 1263 while ( !((keys = in_menu_wait_any(NULL, 50)) & (PBTN_MA3|PBTN_MBACK)) )\r
d34a42f9 1264 ;\r
1265 if (keys & PBTN_MBACK)\r
1266 do_it = 0;\r
13450307 1267 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))\r
d34a42f9 1268 ;\r
45285368 1269 in_set_config_int(0, IN_CFG_BLOCKING, 0);\r
d34a42f9 1270 }\r
1271 if (do_it) {\r
54646a39 1272 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");\r
d34a42f9 1273 PicoStateProgressCB = plat_status_msg_busy_next;\r
a47dd663 1274 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r
d34a42f9 1275 PicoStateProgressCB = NULL;\r
1276 }\r
1277 }\r
5a681086 1278 if (which & PEV_SWITCH_RND)\r
d34a42f9 1279 {\r
5a681086 1280 plat_video_toggle_renderer(1, 0);\r
d34a42f9 1281 }\r
1282 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r
1283 {\r
1284 if (which & PEV_SSLOT_PREV) {\r
1285 state_slot -= 1;\r
1286 if (state_slot < 0)\r
1287 state_slot = 9;\r
1288 } else {\r
1289 state_slot += 1;\r
1290 if (state_slot > 9)\r
1291 state_slot = 0;\r
1292 }\r
1293\r
b24e0f6c 1294 emu_status_msg("SAVE SLOT %i [%s]", state_slot,\r
cca8800d 1295 emu_check_save_file(state_slot, NULL) ? "USED" : "FREE");\r
d34a42f9 1296 }\r
1297 if (which & PEV_MENU)\r
1298 engineState = PGS_Menu;\r
1299}\r
1300\r
1301void emu_update_input(void)\r
1302{\r
093b8a42 1303 static int prev_events = 0;\r
1304 int actions[IN_BINDTYPE_COUNT] = { 0, };\r
1305 int pl_actions[2];\r
1306 int events;\r
d34a42f9 1307\r
093b8a42 1308 in_update(actions);\r
d34a42f9 1309\r
093b8a42 1310 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r
1311 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r
d34a42f9 1312\r
093b8a42 1313 PicoPad[0] = pl_actions[0] & 0xfff;\r
1314 PicoPad[1] = pl_actions[1] & 0xfff;\r
d34a42f9 1315\r
093b8a42 1316 if (pl_actions[0] & 0x7000)\r
1317 do_turbo(&PicoPad[0], pl_actions[0]);\r
1318 if (pl_actions[1] & 0x7000)\r
1319 do_turbo(&PicoPad[1], pl_actions[1]);\r
1320\r
1321 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
d34a42f9 1322\r
1323 // volume is treated in special way and triggered every frame\r
1324 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r
1325 plat_update_volume(1, events & PEV_VOL_UP);\r
1326\r
093b8a42 1327 if ((events ^ prev_events) & PEV_FF) {\r
a47dd663 1328 emu_set_fastforward(events & PEV_FF);\r
d34a42f9 1329 plat_update_volume(0, 0);\r
f2cf8472 1330 reset_timing = 1;\r
d34a42f9 1331 }\r
1332\r
093b8a42 1333 events &= ~prev_events;\r
d34a42f9 1334\r
f2cf8472 1335 if (PicoAHW == PAHW_PICO)\r
1336 run_events_pico(events);\r
d34a42f9 1337 if (events)\r
f2cf8472 1338 run_events_ui(events);\r
d34a42f9 1339 if (movie_data)\r
1340 update_movie();\r
1341\r
093b8a42 1342 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
d34a42f9 1343}\r
1344\r
f2cf8472 1345static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r
1346{\r
1347 strcpy(path_with_reserve + pos, name);\r
1348 if (plat_is_dir(path_with_reserve))\r
1349 return;\r
1350 if (mkdir(path_with_reserve, 0777) < 0)\r
1351 lprintf("failed to create: %s\n", path_with_reserve);\r
1352}\r
1353\r
a4edca53 1354void emu_cmn_forced_frame(int no_scale, int do_emu)\r
1355{\r
1356 int po_old = PicoOpt;\r
1357\r
1358 memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
1359\r
8340e7c9 1360 PicoOpt &= ~POPT_ALT_RENDERER;\r
a4edca53 1361 PicoOpt |= POPT_ACC_SPRITES;\r
1362 if (!no_scale)\r
1363 PicoOpt |= POPT_EN_SOFTSCALE;\r
1364\r
1365 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
1366 Pico.m.dirtyPal = 1;\r
1367 if (do_emu)\r
1368 PicoFrame();\r
1369 else\r
1370 PicoFrameDrawOnly();\r
1371\r
1372 PicoOpt = po_old;\r
1373}\r
1374\r
f2cf8472 1375void emu_init(void)\r
1376{\r
27701801 1377 char path[512];\r
f2cf8472 1378 int pos;\r
1379\r
83ff19ec 1380#if 0\r
1381 // FIXME: handle through menu, etc\r
1382 FILE *f;\r
1383 f = fopen("32X_M_BIOS.BIN", "rb");\r
1384 p32x_bios_m = malloc(2048);\r
1385 fread(p32x_bios_m, 1, 2048, f);\r
1386 fclose(f);\r
1387 f = fopen("32X_S_BIOS.BIN", "rb");\r
1388 p32x_bios_s = malloc(1024);\r
1389 fread(p32x_bios_s, 1, 1024, f);\r
1390 fclose(f);\r
1391#endif\r
1392\r
f2cf8472 1393 /* make dirs for saves */\r
27701801 1394 pos = plat_get_root_dir(path, sizeof(path) - 4);\r
1395 mkdir_path(path, pos, "mds");\r
1396 mkdir_path(path, pos, "srm");\r
1397 mkdir_path(path, pos, "brm");\r
1398\r
f6c49d38 1399 pprof_init();\r
1400\r
27701801 1401 make_config_cfg(path);\r
1402 config_readlrom(path);\r
f2cf8472 1403\r
1404 PicoInit();\r
1405 PicoMessage = plat_status_msg_busy_next;\r
d687ef50 1406 PicoMCDopenTray = emu_tray_open;\r
1407 PicoMCDcloseTray = emu_tray_close;\r
f2cf8472 1408}\r
1409\r
1410void emu_finish(void)\r
1411{\r
1412 // save SRAM\r
a47dd663 1413 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1414 emu_save_load_game(0, 1);\r
f2cf8472 1415 SRam.changed = 0;\r
1416 }\r
1417\r
27701801 1418 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r
1419 char cfg[512];\r
1420 make_config_cfg(cfg);\r
1421 config_writelrom(cfg);\r
1422#ifndef NO_SYNC\r
1423 sync();\r
1424#endif\r
1425 }\r
f2cf8472 1426\r
f6c49d38 1427 pprof_finish();\r
1428\r
f2cf8472 1429 PicoExit();\r
1430}\r
1431\r
b24e0f6c 1432static void skip_frame(int do_audio)\r
1433{\r
1434 PicoSkipFrame = do_audio ? 1 : 2;\r
1435 PicoFrame();\r
1436 PicoSkipFrame = 0;\r
1437}\r
1438\r
1439/* our tick here is 1 us right now */\r
1440#define ms_to_ticks(x) (unsigned int)(x * 1000)\r
1441#define get_ticks() plat_get_ticks_us()\r
1442\r
1443void emu_loop(void)\r
1444{\r
1445 int pframes_done; /* "period" frames, used for sync */\r
1446 int frames_done, frames_shown; /* actual frames for fps counter */\r
19954be1 1447 int target_fps, target_frametime;\r
b24e0f6c 1448 unsigned int timestamp_base = 0, timestamp_fps;\r
1449 char *notice_msg = NULL;\r
1450 char fpsbuff[24];\r
1451 int i;\r
1452\r
1453 fpsbuff[0] = 0;\r
1454\r
1455 /* make sure we are in correct mode */\r
b24e0f6c 1456 Pico.m.dirtyPal = 1;\r
19954be1 1457 rendstatus_old = -1;\r
b24e0f6c 1458\r
46bcb899 1459 PicoLoopPrepare();\r
1460\r
1461 // prepare CD buffer\r
1462 if (PicoAHW & PAHW_MCD)\r
1463 PicoCDBufferInit();\r
1464\r
1465 pemu_loop_prep();\r
1466\r
b24e0f6c 1467 /* number of ticks per frame */\r
1468 if (Pico.m.pal) {\r
1469 target_fps = 50;\r
1470 target_frametime = ms_to_ticks(1000) / 50;\r
1471 } else {\r
1472 target_fps = 60;\r
1473 target_frametime = ms_to_ticks(1000) / 60 + 1;\r
1474 }\r
1475\r
b24e0f6c 1476 timestamp_fps = get_ticks();\r
1477 reset_timing = 1;\r
1478\r
1479 frames_done = frames_shown = pframes_done = 0;\r
1480\r
7b436906 1481 plat_video_wait_vsync();\r
1482\r
b24e0f6c 1483 /* loop with resync every 1 sec. */\r
1484 while (engineState == PGS_Running)\r
1485 {\r
1486 unsigned int timestamp;\r
1487 int diff, diff_lim;\r
b24e0f6c 1488\r
f6c49d38 1489 pprof_start(main);\r
1490\r
b24e0f6c 1491 timestamp = get_ticks();\r
1492 if (reset_timing) {\r
1493 reset_timing = 0;\r
1494 timestamp_base = timestamp;\r
1495 pframes_done = 0;\r
1496 }\r
1497\r
1498 // show notice_msg message?\r
1499 if (notice_msg_time != 0)\r
1500 {\r
1501 static int noticeMsgSum;\r
54646a39 1502 if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {\r
b24e0f6c 1503 notice_msg_time = 0;\r
1504 plat_status_msg_clear();\r
1505 notice_msg = NULL;\r
1506 } else {\r
1507 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];\r
1508 if (sum != noticeMsgSum) {\r
1509 plat_status_msg_clear();\r
1510 noticeMsgSum = sum;\r
1511 }\r
1512 notice_msg = noticeMsg;\r
1513 }\r
1514 }\r
1515\r
b24e0f6c 1516 // second changed?\r
1517 if (timestamp - timestamp_fps >= ms_to_ticks(1000))\r
1518 {\r
1519#ifdef BENCHMARK\r
1520 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1521 if (++bench == 10) {\r
1522 bench = 0;\r
1523 bench_fps_s = bench_fps;\r
1524 bf[bfp++ & 3] = bench_fps;\r
1525 bench_fps = 0;\r
1526 }\r
1527 bench_fps += frames_shown;\r
1528 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
07e5dbab 1529 printf("%s\n", fpsbuff);\r
b24e0f6c 1530#else\r
1531 if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {\r
1532 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1533 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
1534 }\r
1535#endif\r
1536 frames_shown = frames_done = 0;\r
1537 timestamp_fps += ms_to_ticks(1000);\r
1538 }\r
1539#ifdef PFRAMES\r
1540 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
1541#endif\r
1542\r
1543 if (timestamp - timestamp_base >= ms_to_ticks(1000))\r
1544 {\r
21ecaf23 1545 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)\r
b24e0f6c 1546 pframes_done = 0;\r
5a681086 1547 else\r
b24e0f6c 1548 pframes_done -= target_fps;\r
5a681086 1549 if (pframes_done < -2) {\r
1550 /* don't drag more than 2 frames behind */\r
1551 pframes_done = -2;\r
1552 timestamp_base = timestamp - 2 * target_frametime;\r
21ecaf23 1553 }\r
5a681086 1554 else\r
1555 timestamp_base += ms_to_ticks(1000);\r
b24e0f6c 1556 }\r
1557\r
1558 diff = timestamp - timestamp_base;\r
1559 diff_lim = (pframes_done + 1) * target_frametime;\r
1560\r
1561 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
1562 {\r
1563 for (i = 0; i < currentConfig.Frameskip; i++) {\r
1564 emu_update_input();\r
1565 skip_frame(1);\r
1566 pframes_done++; frames_done++;\r
1567 diff_lim += target_frametime;\r
1568\r
ae87bffa 1569 if (!(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT))) {\r
b24e0f6c 1570 timestamp = get_ticks();\r
1571 diff = timestamp - timestamp_base;\r
0d83abe2 1572 if (!reset_timing && diff < diff_lim) // we are too fast\r
b24e0f6c 1573 plat_wait_till_us(timestamp_base + diff_lim);\r
1574 }\r
1575 }\r
1576 }\r
1577 else if (diff > diff_lim)\r
1578 {\r
1579 /* no time left for this frame - skip */\r
5a681086 1580 /* limit auto frameskip to 8 */\r
1581 if (frames_done / 8 <= frames_shown) {\r
1582 emu_update_input();\r
1583 skip_frame(diff < diff_lim + target_frametime * 16);\r
1584 pframes_done++; frames_done++;\r
b24e0f6c 1585 continue;\r
1586 }\r
b24e0f6c 1587 }\r
1588\r
1589 emu_update_input();\r
1590 PicoFrame();\r
d08e7326 1591 pemu_finalize_frame(fpsbuff, notice_msg);\r
1592\r
f6c49d38 1593 // plat_video_flip();\r
b24e0f6c 1594\r
1595 /* frame limiter */\r
ae87bffa 1596 if (!reset_timing && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT)))\r
b24e0f6c 1597 {\r
1598 timestamp = get_ticks();\r
1599 diff = timestamp - timestamp_base;\r
1600\r
1601 // sleep or vsync if we are still too fast\r
1602 if (diff < diff_lim)\r
1603 {\r
1604 // we are too fast\r
7b436906 1605 plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);\r
1606 if (currentConfig.EmuOpt & EOPT_VSYNC)\r
b24e0f6c 1607 plat_video_wait_vsync();\r
b24e0f6c 1608 }\r
1609 }\r
1610\r
d08e7326 1611 // XXX: for some plats it might be better to flip before vsync\r
1612 // (due to shadow registers in display hw)\r
1613 plat_video_flip();\r
b24e0f6c 1614\r
1615 pframes_done++; frames_done++; frames_shown++;\r
f6c49d38 1616\r
1617 pprof_end(main);\r
b24e0f6c 1618 }\r
1619\r
1620 emu_set_fastforward(0);\r
1621\r
b24e0f6c 1622 // save SRAM\r
1623 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1624 plat_status_msg_busy_first("Writing SRAM/BRAM...");\r
1625 emu_save_load_game(0, 1);\r
1626 SRam.changed = 0;\r
1627 }\r
1628\r
b24e0f6c 1629 pemu_loop_end();\r
730259b7 1630\r
1631 // pemu_loop_end() might want to do 1 frame for bg image,\r
1632 // so free CD buffer here\r
1633 if (PicoAHW & PAHW_MCD)\r
1634 PicoCDBufferFree();\r
b24e0f6c 1635}\r
1636\r
fast MegaDrive/MegaCD/32X emulator