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remove unused/unmaintained code
[picodrive.git] / platform / common / emu.c
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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
e743be20 13#include "../libpicofe/posix.h"\r
14#include "../libpicofe/input.h"\r
15#include "../libpicofe/fonts.h"\r
16#include "../libpicofe/lprintf.h"\r
17#include "../libpicofe/plat.h"\r
ea8c405f 18#include "emu.h"\r
e743be20 19#include "input_pico.h"\r
20#include "menu_pico.h"\r
58c86d00 21#include "config.h"\r
ea8c405f 22\r
efcba75f 23#include <pico/pico_int.h>\r
24#include <pico/patch.h>\r
25#include <pico/cd/cue.h>\r
ea8c405f 26\r
ea8c405f 27\r
54646a39 28#define STATUS_MSG_TIMEOUT 2000\r
29\r
e2de9939 30void *g_screen_ptr;\r
31\r
32#if !SCREEN_SIZE_FIXED\r
33int g_screen_width = SCREEN_WIDTH;\r
34int g_screen_height = SCREEN_HEIGHT;\r
35#endif\r
36\r
c46ffd31 37char *PicoConfigFile = "config.cfg";\r
58c86d00 38currentConfig_t currentConfig, defaultConfig;\r
ea8c405f 39int state_slot = 0;\r
40int config_slot = 0, config_slot_current = 0;\r
f2cf8472 41int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
c060a9ab 42int pico_inp_mode = 0;\r
713c9224 43int engineState = PGS_Menu;\r
44\r
ae87bffa 45/* tmp buff to reduce stack usage for plats with small stack */\r
46static char static_buff[512];\r
713c9224 47/* TODO: len checking */\r
ae87bffa 48char rom_fname_reload[512];\r
49char rom_fname_loaded[512];\r
713c9224 50int rom_loaded = 0;\r
f2cf8472 51int reset_timing = 0;\r
b24e0f6c 52static unsigned int notice_msg_time; /* when started showing */\r
53static char noticeMsg[40];\r
ea8c405f 54\r
55unsigned char *movie_data = NULL;\r
56static int movie_size = 0;\r
57\r
ea8c405f 58\r
ee2a3bdf 59/* don't use tolower() for easy old glibc binary compatibility */\r
f8af9634 60static void strlwr_(char *string)\r
ea8c405f 61{\r
f8af9634 62 char *p;\r
63 for (p = string; *p; p++)\r
ee2a3bdf 64 if ('A' <= *p && *p <= 'Z')\r
65 *p += 'a' - 'A';\r
ea8c405f 66}\r
67\r
ca482e5d 68static int try_rfn_cut(char *fname)\r
ea8c405f 69{\r
70 FILE *tmp;\r
71 char *p;\r
72\r
ca482e5d 73 p = fname + strlen(fname) - 1;\r
74 for (; p > fname; p--)\r
ea8c405f 75 if (*p == '.') break;\r
76 *p = 0;\r
77\r
ca482e5d 78 if((tmp = fopen(fname, "rb"))) {\r
ea8c405f 79 fclose(tmp);\r
80 return 1;\r
81 }\r
82 return 0;\r
83}\r
84\r
35e3031a 85static void get_ext(const char *file, char *ext)\r
ea8c405f 86{\r
35e3031a 87 const char *p;\r
ea8c405f 88\r
89 p = file + strlen(file) - 4;\r
90 if (p < file) p = file;\r
91 strncpy(ext, p, 4);\r
92 ext[4] = 0;\r
93 strlwr_(ext);\r
94}\r
95\r
fcdefcf6 96static void fname_ext(char *dst, int dstlen, const char *prefix, const char *ext, const char *fname)\r
97{\r
98 int prefix_len = 0;\r
99 const char *p;\r
100\r
101 *dst = 0;\r
102 if (prefix) {\r
103 int len = plat_get_root_dir(dst, dstlen);\r
104 strcpy(dst + len, prefix);\r
105 prefix_len = len + strlen(prefix);\r
106 }\r
107\r
108 p = fname + strlen(fname) - 1;\r
109 for (; p >= fname && *p != PATH_SEP_C; p--)\r
110 ;\r
111 p++;\r
112 strncpy(dst + prefix_len, p, dstlen - prefix_len - 1);\r
113\r
114 dst[dstlen - 8] = 0;\r
115 if (dst[strlen(dst) - 4] == '.')\r
116 dst[strlen(dst) - 4] = 0;\r
117 if (ext)\r
118 strcat(dst, ext);\r
119}\r
120\r
121static void romfname_ext(char *dst, int dstlen, const char *prefix, const char *ext)\r
122{\r
123 fname_ext(dst, dstlen, prefix, ext, rom_fname_loaded);\r
124}\r
125\r
b24e0f6c 126void emu_status_msg(const char *format, ...)\r
127{\r
128 va_list vl;\r
54646a39 129 int ret;\r
b24e0f6c 130\r
131 va_start(vl, format);\r
54646a39 132 ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);\r
b24e0f6c 133 va_end(vl);\r
134\r
54646a39 135 /* be sure old text gets overwritten */\r
136 for (; ret < 28; ret++)\r
137 noticeMsg[ret] = ' ';\r
138 noticeMsg[ret] = 0;\r
139\r
b24e0f6c 140 notice_msg_time = plat_get_ticks_ms();\r
141}\r
142\r
54646a39 143static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r
144static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r
145static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
ea8c405f 146\r
a47dd663 147static int find_bios(int region, char **bios_file)\r
ea8c405f 148{\r
ea8c405f 149 int i, count;\r
54646a39 150 const char * const *files;\r
ea8c405f 151 FILE *f = NULL;\r
152\r
153 if (region == 4) { // US\r
154 files = biosfiles_us;\r
155 count = sizeof(biosfiles_us) / sizeof(char *);\r
156 } else if (region == 8) { // EU\r
157 files = biosfiles_eu;\r
158 count = sizeof(biosfiles_eu) / sizeof(char *);\r
159 } else if (region == 1 || region == 2) {\r
160 files = biosfiles_jp;\r
161 count = sizeof(biosfiles_jp) / sizeof(char *);\r
162 } else {\r
163 return 0;\r
164 }\r
165\r
166 for (i = 0; i < count; i++)\r
167 {\r
ae87bffa 168 emu_make_path(static_buff, files[i], sizeof(static_buff) - 4);\r
169 strcat(static_buff, ".bin");\r
170 f = fopen(static_buff, "rb");\r
ea8c405f 171 if (f) break;\r
172\r
ae87bffa 173 static_buff[strlen(static_buff) - 4] = 0;\r
174 strcat(static_buff, ".zip");\r
175 f = fopen(static_buff, "rb");\r
ea8c405f 176 if (f) break;\r
177 }\r
178\r
179 if (f) {\r
ae87bffa 180 lprintf("using bios: %s\n", static_buff);\r
ea8c405f 181 fclose(f);\r
ae87bffa 182 if (bios_file)\r
183 *bios_file = static_buff;\r
ea8c405f 184 return 1;\r
185 } else {\r
ae87bffa 186 sprintf(static_buff, "no %s BIOS files found, read docs",\r
ea8c405f 187 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
e743be20 188 menu_update_msg(static_buff);\r
ea8c405f 189 return 0;\r
190 }\r
191}\r
192\r
c6196c0f 193/* check if the name begins with BIOS name */\r
1ca2ea4f 194/*\r
c6196c0f 195static int emu_isBios(const char *name)\r
196{\r
197 int i;\r
198 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
199 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
200 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
201 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
202 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
203 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
204 return 0;\r
205}\r
1ca2ea4f 206*/\r
c6196c0f 207\r
1ca2ea4f 208static unsigned char id_header[0x100];\r
58c86d00 209\r
3e49ffd0 210/* checks if fname points to valid MegaCD image */\r
35e3031a 211static int emu_cd_check(int *pregion, const char *fname_in)\r
ea8c405f 212{\r
35e3031a 213 const char *fname = fname_in;\r
ea8c405f 214 unsigned char buf[32];\r
215 pm_file *cd_f;\r
9037e45d 216 int region = 4; // 1: Japan, 4: US, 8: Europe\r
35e3031a 217 char ext[5];\r
9037e45d 218 cue_track_type type = CT_UNKNOWN;\r
219 cue_data_t *cue_data = NULL;\r
b923ecbe 220\r
ca482e5d 221 get_ext(fname_in, ext);\r
9037e45d 222 if (strcasecmp(ext, ".cue") == 0) {\r
ca482e5d 223 cue_data = cue_parse(fname_in);\r
9037e45d 224 if (cue_data != NULL) {\r
225 fname = cue_data->tracks[1].fname;\r
226 type = cue_data->tracks[1].type;\r
227 }\r
f9f40f10 228 else\r
229 return -1;\r
9037e45d 230 }\r
231\r
232 cd_f = pm_open(fname);\r
233 if (cue_data != NULL)\r
234 cue_destroy(cue_data);\r
ea8c405f 235\r
f9f40f10 236 if (cd_f == NULL) return 0; // let the upper level handle this\r
ea8c405f 237\r
238 if (pm_read(buf, 32, cd_f) != 32) {\r
239 pm_close(cd_f);\r
f9f40f10 240 return -1;\r
ea8c405f 241 }\r
242\r
9037e45d 243 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {\r
244 if (type && type != CT_ISO)\r
245 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
246 type = CT_ISO; // Sega CD (ISO)\r
247 }\r
248 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {\r
249 if (type && type != CT_BIN)\r
250 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
251 type = CT_BIN; // Sega CD (BIN)\r
252 }\r
253\r
254 if (type == CT_UNKNOWN) {\r
ea8c405f 255 pm_close(cd_f);\r
256 return 0;\r
257 }\r
258\r
9037e45d 259 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);\r
1ca2ea4f 260 pm_read(id_header, sizeof(id_header), cd_f);\r
58c86d00 261\r
ea8c405f 262 /* it seems we have a CD image here. Try to detect region now.. */\r
9037e45d 263 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
ea8c405f 264 pm_read(buf, 1, cd_f);\r
265 pm_close(cd_f);\r
266\r
267 if (buf[0] == 0x64) region = 8; // EU\r
268 if (buf[0] == 0xa1) region = 1; // JAP\r
269\r
270 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
9037e45d 271 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
ea8c405f 272\r
273 if (pregion != NULL) *pregion = region;\r
274\r
275 return type;\r
276}\r
277\r
3e49ffd0 278static int detect_media(const char *fname)\r
279{\r
280 static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 };\r
87b0845f 281 static const char *sms_exts[] = { "sms", "gg", "sg" };\r
282 static const char *md_exts[] = { "gen", "bin", "smd" };\r
283 char buff0[32], buff[32];\r
284 unsigned short *d16;\r
3e49ffd0 285 pm_file *pmf;\r
3e49ffd0 286 char ext[5];\r
287 int i;\r
288\r
289 get_ext(fname, ext);\r
290\r
291 // detect wrong extensions\r
292 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) // s.gz ~ .mds.gz\r
293 return PM_BAD;\r
294\r
295 /* don't believe in extensions, except .cue */\r
296 if (strcasecmp(ext, ".cue") == 0)\r
297 return PM_CD;\r
298\r
299 pmf = pm_open(fname);\r
300 if (pmf == NULL)\r
301 return PM_BAD;\r
302\r
87b0845f 303 if (pm_read(buff0, 32, pmf) != 32) {\r
3e49ffd0 304 pm_close(pmf);\r
305 return PM_BAD;\r
306 }\r
307\r
87b0845f 308 if (strncasecmp("SEGADISCSYSTEM", buff0 + 0x00, 14) == 0 ||\r
309 strncasecmp("SEGADISCSYSTEM", buff0 + 0x10, 14) == 0) {\r
3e49ffd0 310 pm_close(pmf);\r
311 return PM_CD;\r
312 }\r
313\r
87b0845f 314 /* check for SMD evil */\r
315 if (pmf->size >= 0x4200 && (pmf->size & 0x3fff) == 0x200) {\r
316 if (pm_seek(pmf, sms_offsets[0] + 0x200, SEEK_SET) == sms_offsets[0] + 0x200 &&\r
317 pm_read(buff, 16, pmf) == 16 &&\r
318 strncmp("TMR SEGA", buff, 8) == 0)\r
319 goto looks_like_sms;\r
320\r
321 /* could parse further but don't bother */\r
322 goto extension_check;\r
323 }\r
324\r
325 /* MD header? Act as TMSS BIOS here */\r
326 if (pm_seek(pmf, 0x100, SEEK_SET) == 0x100 && pm_read(buff, 16, pmf) == 16) {\r
327 if (strncmp(buff, "SEGA", 4) == 0 || strncmp(buff, " SEG", 4) == 0)\r
328 goto looks_like_md;\r
329 }\r
330\r
3e49ffd0 331 for (i = 0; i < array_size(sms_offsets); i++) {\r
332 if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i])\r
87b0845f 333 continue;\r
3e49ffd0 334\r
335 if (pm_read(buff, 16, pmf) != 16)\r
87b0845f 336 continue;\r
3e49ffd0 337\r
87b0845f 338 if (strncmp("TMR SEGA", buff, 8) == 0)\r
339 goto looks_like_sms;\r
340 }\r
341\r
342extension_check:\r
343 /* probably some headerless thing. Maybe check the extension after all. */\r
344 for (i = 0; i < array_size(md_exts); i++)\r
345 if (strcasecmp(pmf->ext, md_exts[i]) == 0)\r
346 goto looks_like_md;\r
347\r
348 for (i = 0; i < array_size(sms_exts); i++)\r
349 if (strcasecmp(pmf->ext, sms_exts[i]) == 0)\r
350 goto looks_like_sms;\r
351\r
352 /* If everything else fails, make a guess on the reset vector */\r
353 d16 = (unsigned short *)(buff0 + 4);\r
354 if ((((d16[0] << 16) | d16[1]) & 0xffffff) >= pmf->size) {\r
355 lprintf("bad MD reset vector, assuming SMS\n");\r
356 goto looks_like_sms;\r
3e49ffd0 357 }\r
358\r
87b0845f 359looks_like_md:\r
3e49ffd0 360 pm_close(pmf);\r
3e49ffd0 361 return PM_MD_CART;\r
87b0845f 362\r
363looks_like_sms:\r
364 pm_close(pmf);\r
365 return PM_MARK3;\r
3e49ffd0 366}\r
367\r
7a87643e 368static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r
58c86d00 369{\r
370 char *p = dest;\r
371 int i;\r
372\r
373 if (swab) swab = 1;\r
374\r
375 for (i = len - 1; i >= 0; i--)\r
376 {\r
377 if (src[i^swab] != ' ') break;\r
378 }\r
379 len = i + 1;\r
380\r
381 for (i = 0; i < len; i++)\r
382 {\r
383 unsigned char s = src[i^swab];\r
384 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
385 s != '[' && s != ']' && s != '\\')\r
386 {\r
387 *p++ = s;\r
388 }\r
389 else\r
390 {\r
391 sprintf(p, "\\%02x", s);\r
392 p += 3;\r
393 }\r
394 }\r
395\r
396 return p - dest;\r
397}\r
398\r
fcdefcf6 399static char *emu_make_rom_id(const char *fname)\r
58c86d00 400{\r
ca482e5d 401 static char id_string[3+0xe*3+0x3*3+0x30*3+3];\r
bdec53c9 402 int pos, swab = 1;\r
58c86d00 403\r
602133e1 404 if (PicoAHW & PAHW_MCD) {\r
bdec53c9 405 strcpy(id_string, "CD|");\r
406 swab = 0;\r
407 }\r
fcdefcf6 408 else if (PicoAHW & PAHW_SMS)\r
409 strcpy(id_string, "MS|");\r
410 else strcpy(id_string, "MD|");\r
58c86d00 411 pos = 3;\r
412\r
fcdefcf6 413 if (!(PicoAHW & PAHW_SMS)) {\r
414 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r
415 id_string[pos] = '|'; pos++;\r
416 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r
417 id_string[pos] = '|'; pos++;\r
418 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r
419 id_string[pos] = 0;\r
420 if (pos > 5)\r
421 return id_string;\r
422 pos = 3;\r
423 }\r
424\r
425 // can't find name in ROM, use filename\r
426 fname_ext(id_string + 3, sizeof(id_string) - 3, NULL, NULL, fname);\r
58c86d00 427\r
58c86d00 428 return id_string;\r
429}\r
430\r
ca482e5d 431// buffer must be at least 150 byte long\r
a47dd663 432void emu_get_game_name(char *str150)\r
ca482e5d 433{\r
434 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;\r
435 char *s, *d;\r
436\r
437 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name\r
438\r
439 for (s = d = str150 + 1; s < str150+ret; s++)\r
440 {\r
441 if (*s == 0) break;\r
442 if (*s != ' ' || d[-1] != ' ')\r
443 *d++ = *s;\r
444 }\r
445 *d = 0;\r
446}\r
447\r
a47dd663 448static void shutdown_MCD(void)\r
449{\r
450 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)\r
451 Stop_CD();\r
452 PicoAHW &= ~PAHW_MCD;\r
453}\r
454\r
974fdb5b 455static void system_announce(void)\r
456{\r
f3a57b2d 457 const char *sys_name, *tv_standard, *extra = "";\r
974fdb5b 458 int fps;\r
459\r
460 if (PicoAHW & PAHW_SMS) {\r
461 sys_name = "Master System";\r
f3a57b2d 462#ifdef NO_SMS\r
463 extra = " [no support]";\r
464#endif\r
974fdb5b 465 } else if (PicoAHW & PAHW_PICO) {\r
466 sys_name = "Pico";\r
467 } else if (PicoAHW & PAHW_MCD) {\r
468 sys_name = "Mega CD";\r
469 if ((Pico.m.hardware & 0xc0) == 0x80)\r
470 sys_name = "Sega CD";\r
471 } else if (PicoAHW & PAHW_32X) {\r
472 sys_name = "32X";\r
473 } else {\r
474 sys_name = "MegaDrive";\r
475 if ((Pico.m.hardware & 0xc0) == 0x80)\r
476 sys_name = "Genesis";\r
477 }\r
478 tv_standard = Pico.m.pal ? "PAL" : "NTSC";\r
479 fps = Pico.m.pal ? 50 : 60;\r
480\r
f3a57b2d 481 emu_status_msg("%s %s / %dFPS%s", tv_standard, sys_name, fps, extra);\r
974fdb5b 482}\r
483\r
ca482e5d 484// note: this function might mangle rom_fname\r
3e49ffd0 485// XXX: portions of this code should move to pico/\r
a47dd663 486int emu_reload_rom(char *rom_fname)\r
ea8c405f 487{\r
488 unsigned int rom_size = 0;\r
ca482e5d 489 char *used_rom_name = rom_fname;\r
eacee137 490 unsigned char *rom_data = NULL;\r
ea8c405f 491 char ext[5];\r
f9f40f10 492 pm_file *rom = NULL;\r
3e49ffd0 493 int cd_state = CIT_NOT_CD;\r
494 int ret, media_type, cd_region;\r
495 int cfg_loaded = 0, bad_rom = 0;\r
ea8c405f 496\r
ca482e5d 497 lprintf("emu_ReloadRom(%s)\n", rom_fname);\r
ea8c405f 498\r
ca482e5d 499 get_ext(rom_fname, ext);\r
ea8c405f 500\r
77189b7d 501 // early cleanup\r
502 PicoPatchUnload();\r
eacee137 503 if (movie_data) {\r
ea8c405f 504 free(movie_data);\r
505 movie_data = 0;\r
506 }\r
77189b7d 507\r
2d2247c2 508 if (!strcmp(ext, ".gmv"))\r
509 {\r
ea8c405f 510 // check for both gmv and rom\r
511 int dummy;\r
ca482e5d 512 FILE *movie_file = fopen(rom_fname, "rb");\r
b8a1c09a 513 if (!movie_file) {\r
e743be20 514 menu_update_msg("Failed to open movie.");\r
ea8c405f 515 return 0;\r
516 }\r
517 fseek(movie_file, 0, SEEK_END);\r
518 movie_size = ftell(movie_file);\r
519 fseek(movie_file, 0, SEEK_SET);\r
b8a1c09a 520 if (movie_size < 64+3) {\r
e743be20 521 menu_update_msg("Invalid GMV file.");\r
ea8c405f 522 fclose(movie_file);\r
523 return 0;\r
524 }\r
525 movie_data = malloc(movie_size);\r
b8a1c09a 526 if (movie_data == NULL) {\r
e743be20 527 menu_update_msg("low memory.");\r
ea8c405f 528 fclose(movie_file);\r
529 return 0;\r
530 }\r
b8a1c09a 531 dummy = fread(movie_data, 1, movie_size, movie_file);\r
ea8c405f 532 fclose(movie_file);\r
533 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
e743be20 534 menu_update_msg("Invalid GMV file.");\r
ea8c405f 535 return 0;\r
536 }\r
ca482e5d 537 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
ea8c405f 538 if (!dummy) {\r
e743be20 539 menu_update_msg("Could't find a ROM for movie.");\r
ea8c405f 540 return 0;\r
541 }\r
ca482e5d 542 get_ext(rom_fname, ext);\r
f8af9634 543 lprintf("gmv loaded for %s\n", rom_fname);\r
ea8c405f 544 }\r
ca482e5d 545 else if (!strcmp(ext, ".pat"))\r
546 {\r
ea8c405f 547 int dummy;\r
ca482e5d 548 PicoPatchLoad(rom_fname);\r
549 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
ea8c405f 550 if (!dummy) {\r
e743be20 551 menu_update_msg("Could't find a ROM to patch.");\r
ea8c405f 552 return 0;\r
553 }\r
ca482e5d 554 get_ext(rom_fname, ext);\r
ea8c405f 555 }\r
556\r
3e49ffd0 557 media_type = detect_media(rom_fname);\r
558 if (media_type == PM_BAD) {\r
e743be20 559 menu_update_msg("Not a ROM/CD img selected.");\r
3e49ffd0 560 return 0;\r
561 }\r
562\r
a47dd663 563 shutdown_MCD();\r
5e49c3a8 564 PicoCartUnload();\r
565 rom_loaded = 0;\r
566\r
87b0845f 567 PicoAHW = 0;\r
ea8c405f 568\r
3e49ffd0 569 if (media_type == PM_CD)\r
ea8c405f 570 {\r
3e49ffd0 571 // check for MegaCD image\r
572 cd_state = emu_cd_check(&cd_region, rom_fname);\r
573 if (cd_state >= 0 && cd_state != CIT_NOT_CD)\r
574 {\r
575 // valid CD image, check for BIOS..\r
ea8c405f 576\r
3e49ffd0 577 // we need to have config loaded at this point\r
fcdefcf6 578 ret = emu_read_config(rom_fname, 0);\r
579 if (!ret) emu_read_config(NULL, 0);\r
3e49ffd0 580 cfg_loaded = 1;\r
ea8c405f 581\r
3e49ffd0 582 if (PicoRegionOverride) {\r
583 cd_region = PicoRegionOverride;\r
584 lprintf("override region to %s\n", cd_region != 4 ?\r
585 (cd_region == 8 ? "EU" : "JAP") : "USA");\r
586 }\r
587 if (!find_bios(cd_region, &used_rom_name))\r
588 return 0;\r
589\r
590 get_ext(used_rom_name, ext);\r
591 PicoAHW |= PAHW_MCD;\r
ea8c405f 592 }\r
3e49ffd0 593 else {\r
e743be20 594 menu_update_msg("Invalid CD image");\r
ea8c405f 595 return 0;\r
596 }\r
ea8c405f 597 }\r
3e49ffd0 598 else if (media_type == PM_MARK3) {\r
599 lprintf("detected SMS ROM\n");\r
600 PicoAHW = PAHW_SMS;\r
ea8c405f 601 }\r
602\r
603 rom = pm_open(used_rom_name);\r
3e49ffd0 604 if (rom == NULL) {\r
e743be20 605 menu_update_msg("Failed to open ROM");\r
3e49ffd0 606 return 0;\r
ea8c405f 607 }\r
608\r
4b167c12 609 menu_romload_prepare(used_rom_name); // also CD load\r
ae87bffa 610 used_rom_name = NULL; // uses static_buff\r
ea8c405f 611\r
3e49ffd0 612 ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);\r
613 pm_close(rom);\r
614 if (ret != 0) {\r
e743be20 615 if (ret == 2) menu_update_msg("Out of memory");\r
616 else if (ret == 3) menu_update_msg("Read failed");\r
617 else menu_update_msg("PicoCartLoad() failed.");\r
3e49ffd0 618 goto fail;\r
619 }\r
620\r
621 // detect wrong files\r
622 if (strncmp((char *)rom_data, "Pico", 4) == 0)\r
623 bad_rom = 1;\r
624 else if (!(PicoAHW & PAHW_SMS)) {\r
625 unsigned short *d = (unsigned short *)(rom_data + 4);\r
626 if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {\r
627 lprintf("bad reset vector\n");\r
628 bad_rom = 1;\r
629 }\r
ea8c405f 630 }\r
ea8c405f 631\r
3e49ffd0 632 if (bad_rom) {\r
e743be20 633 menu_update_msg("Bad ROM detected.");\r
3e49ffd0 634 goto fail;\r
ea8c405f 635 }\r
636\r
637 // load config for this ROM (do this before insert to get correct region)\r
602133e1 638 if (!(PicoAHW & PAHW_MCD))\r
1ca2ea4f 639 memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r
ea8c405f 640 if (!cfg_loaded) {\r
fcdefcf6 641 ret = emu_read_config(rom_fname, 0);\r
642 if (!ret) emu_read_config(NULL, 0);\r
ea8c405f 643 }\r
644\r
ae87bffa 645 emu_make_path(static_buff, "carthw.cfg", sizeof(static_buff));\r
646 if (PicoCartInsert(rom_data, rom_size, static_buff)) {\r
e743be20 647 menu_update_msg("Failed to load ROM.");\r
3e49ffd0 648 goto fail;\r
ea8c405f 649 }\r
650\r
ea8c405f 651 // insert CD if it was detected\r
b923ecbe 652 if (cd_state != CIT_NOT_CD) {\r
ca482e5d 653 ret = Insert_CD(rom_fname, cd_state);\r
ea8c405f 654 if (ret != 0) {\r
3e49ffd0 655 PicoCartUnload();\r
656 rom_data = NULL; // freed by unload\r
e743be20 657 menu_update_msg("Insert_CD() failed, invalid CD image?");\r
3e49ffd0 658 goto fail;\r
ea8c405f 659 }\r
660 }\r
661\r
4b167c12 662 menu_romload_end();\r
663\r
ea8c405f 664 if (PicoPatches) {\r
665 PicoPatchPrepare();\r
666 PicoPatchApply();\r
667 }\r
668\r
669 // additional movie stuff\r
f9f40f10 670 if (movie_data)\r
671 {\r
672 if (movie_data[0x14] == '6')\r
602133e1 673 PicoOpt |= POPT_6BTN_PAD; // 6 button pad\r
674 else PicoOpt &= ~POPT_6BTN_PAD;\r
2aa27095 675 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
f9f40f10 676 if (movie_data[0xF] >= 'A') {\r
677 if (movie_data[0x16] & 0x80) {\r
ea8c405f 678 PicoRegionOverride = 8;\r
679 } else {\r
680 PicoRegionOverride = 4;\r
681 }\r
1cb1584b 682 PicoReset();\r
ea8c405f 683 // TODO: bits 6 & 5\r
684 }\r
685 movie_data[0x18+30] = 0;\r
b24e0f6c 686 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);\r
ea8c405f 687 }\r
688 else\r
689 {\r
974fdb5b 690 system_announce();\r
602133e1 691 PicoOpt &= ~POPT_DIS_VDP_FIFO;\r
ea8c405f 692 }\r
ea8c405f 693\r
bcc9eda0 694 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);\r
695 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
696 rom_loaded = 1;\r
697\r
ea8c405f 698 // load SRAM for this ROM\r
a47dd663 699 if (currentConfig.EmuOpt & EOPT_EN_SRAM)\r
700 emu_save_load_game(1, 1);\r
ea8c405f 701\r
702 return 1;\r
f9f40f10 703\r
f9f40f10 704fail:\r
3e49ffd0 705 if (rom_data)\r
706 free(rom_data);\r
707 menu_romload_end();\r
f9f40f10 708 return 0;\r
ea8c405f 709}\r
710\r
35e3031a 711int emu_swap_cd(const char *fname)\r
712{\r
713 cd_img_type cd_type;\r
714 int ret = -1;\r
715\r
716 cd_type = emu_cd_check(NULL, fname);\r
717 if (cd_type != CIT_NOT_CD)\r
718 ret = Insert_CD(fname, cd_type);\r
719 if (ret != 0) {\r
e743be20 720 menu_update_msg("Load failed, invalid CD image?");\r
35e3031a 721 return 0;\r
722 }\r
723\r
724 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);\r
725 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
726 return 1;\r
727}\r
728\r
ae87bffa 729// <base dir><end>\r
27701801 730void emu_make_path(char *buff, const char *end, int size)\r
08fe8094 731{\r
27701801 732 int pos, end_len;\r
733\r
734 end_len = strlen(end);\r
735 pos = plat_get_root_dir(buff, size);\r
736 strncpy(buff + pos, end, size - pos);\r
737 buff[size - 1] = 0;\r
738 if (pos + end_len > size - 1)\r
739 lprintf("Warning: path truncated: %s\n", buff);\r
740}\r
741\r
742static void make_config_cfg(char *cfg_buff_512)\r
743{\r
744 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);\r
08fe8094 745 if (config_slot != 0)\r
746 {\r
27701801 747 char *p = strrchr(cfg_buff_512, '.');\r
748 if (p == NULL)\r
749 p = cfg_buff_512 + strlen(cfg_buff_512);\r
08fe8094 750 sprintf(p, ".%i.cfg", config_slot);\r
751 }\r
27701801 752 cfg_buff_512[511] = 0;\r
08fe8094 753}\r
754\r
697746df 755void emu_prep_defconfig(void)\r
756{\r
757 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
fcdefcf6 758 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_EN_CD_LEDS;\r
697746df 759 defaultConfig.s_PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |\r
760 POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES |\r
761 POPT_EN_32X|POPT_EN_PWM;\r
762 defaultConfig.s_PsndRate = 44100;\r
763 defaultConfig.s_PicoRegion = 0; // auto\r
764 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
765 defaultConfig.s_PicoCDBuffers = 0;\r
fcdefcf6 766 defaultConfig.confirm_save = EOPT_CONFIRM_SAVE;\r
697746df 767 defaultConfig.Frameskip = -1; // auto\r
768 defaultConfig.volume = 50;\r
769 defaultConfig.gamma = 100;\r
770 defaultConfig.scaling = 0;\r
771 defaultConfig.turbo_rate = 15;\r
772\r
773 // platform specific overrides\r
774 pemu_prep_defconfig();\r
775}\r
776\r
d90f5bd7 777void emu_set_defconfig(void)\r
ca482e5d 778{\r
a47dd663 779 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
ca482e5d 780 PicoOpt = currentConfig.s_PicoOpt;\r
781 PsndRate = currentConfig.s_PsndRate;\r
782 PicoRegionOverride = currentConfig.s_PicoRegion;\r
783 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
784 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
fcdefcf6 785 p32x_msh2_multiplier = MSH2_MULTI_DEFAULT;\r
786 p32x_ssh2_multiplier = SSH2_MULTI_DEFAULT;\r
ca482e5d 787}\r
788\r
fcdefcf6 789int emu_read_config(const char *rom_fname, int no_defaults)\r
ea8c405f 790{\r
58c86d00 791 char cfg[512];\r
58c86d00 792 int ret;\r
ea8c405f 793\r
490eb480 794 if (!no_defaults)\r
795 emu_set_defconfig();\r
796\r
fcdefcf6 797 if (rom_fname == NULL)\r
ea8c405f 798 {\r
fcdefcf6 799 // global config\r
08fe8094 800 make_config_cfg(cfg);\r
58c86d00 801 ret = config_readsect(cfg, NULL);\r
ea8c405f 802 }\r
58c86d00 803 else\r
804 {\r
fcdefcf6 805 char *sect = emu_make_rom_id(rom_fname);\r
ea8c405f 806\r
58c86d00 807 if (config_slot != 0)\r
808 sprintf(cfg, "game.%i.cfg", config_slot);\r
809 else strcpy(cfg, "game.cfg");\r
1ca2ea4f 810\r
811 ret = -1;\r
08fe8094 812 if (config_havesect(cfg, sect))\r
813 {\r
814 // read user's config\r
7b802576 815 int vol = currentConfig.volume;\r
d90f5bd7 816 emu_set_defconfig();\r
1ca2ea4f 817 ret = config_readsect(cfg, sect);\r
7b802576 818 currentConfig.volume = vol; // make vol global (bah)\r
1ca2ea4f 819 }\r
a39b7867 820 else\r
08fe8094 821 {\r
822 // read global config, and apply game_def.cfg on top\r
823 make_config_cfg(cfg);\r
824 config_readsect(cfg, NULL);\r
d8afe7b8 825 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));\r
826 ret = config_readsect(cfg, sect);\r
08fe8094 827 }\r
58c86d00 828\r
ca482e5d 829 if (ret == 0)\r
58c86d00 830 {\r
1ca2ea4f 831 lprintf("loaded cfg from sect \"%s\"\n", sect);\r
58c86d00 832 }\r
ea8c405f 833 }\r
58c86d00 834\r
697746df 835 pemu_validate_config();\r
ee2a3bdf 836\r
ea8c405f 837 // some sanity checks\r
2445b7cb 838#ifdef PSP\r
ee2a3bdf 839 /* TODO: mv to plat_validate_config() */\r
840 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
2445b7cb 841 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
6fc57144 842 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
2445b7cb 843#endif\r
ee2a3bdf 844 if (currentConfig.volume < 0 || currentConfig.volume > 99)\r
845 currentConfig.volume = 50;\r
846\r
847 if (ret == 0)\r
848 config_slot_current = config_slot;\r
991473ad 849\r
58c86d00 850 return (ret == 0);\r
ea8c405f 851}\r
852\r
853\r
a47dd663 854int emu_write_config(int is_game)\r
ea8c405f 855{\r
58c86d00 856 char cfg[512], *game_sect = NULL;\r
857 int ret, write_lrom = 0;\r
ea8c405f 858\r
58c86d00 859 if (!is_game)\r
ea8c405f 860 {\r
ca482e5d 861 make_config_cfg(cfg);\r
58c86d00 862 write_lrom = 1;\r
ea8c405f 863 } else {\r
864 if (config_slot != 0)\r
58c86d00 865 sprintf(cfg, "game.%i.cfg", config_slot);\r
866 else strcpy(cfg, "game.cfg");\r
fcdefcf6 867 game_sect = emu_make_rom_id(rom_fname_loaded);\r
a47dd663 868 lprintf("emu_write_config: sect \"%s\"\n", game_sect);\r
ea8c405f 869 }\r
870\r
a47dd663 871 lprintf("emu_write_config: %s ", cfg);\r
58c86d00 872 ret = config_writesect(cfg, game_sect);\r
1ca2ea4f 873 if (write_lrom) config_writelrom(cfg);\r
ea8c405f 874#ifndef NO_SYNC\r
58c86d00 875 sync();\r
ea8c405f 876#endif\r
58c86d00 877 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
ea8c405f 878\r
58c86d00 879 if (ret == 0) config_slot_current = config_slot;\r
880 return ret == 0;\r
ea8c405f 881}\r
882\r
883\r
e2de9939 884/* always using built-in font */\r
885\r
cc41eb4f 886#define mk_text_out(name, type, val, topleft, step_x, step_y) \\r
e2de9939 887void name(int x, int y, const char *text) \\r
888{ \\r
889 int i, l, len = strlen(text); \\r
cc41eb4f 890 type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r
e2de9939 891 \\r
cc41eb4f 892 for (i = 0; i < len; i++, screen += 8 * step_x) \\r
e2de9939 893 { \\r
894 for (l = 0; l < 8; l++) \\r
895 { \\r
896 unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r
cc41eb4f 897 type *s = screen + l * step_y; \\r
898 if (fd&0x80) s[step_x * 0] = val; \\r
899 if (fd&0x40) s[step_x * 1] = val; \\r
900 if (fd&0x20) s[step_x * 2] = val; \\r
901 if (fd&0x10) s[step_x * 3] = val; \\r
902 if (fd&0x08) s[step_x * 4] = val; \\r
903 if (fd&0x04) s[step_x * 5] = val; \\r
904 if (fd&0x02) s[step_x * 6] = val; \\r
905 if (fd&0x01) s[step_x * 7] = val; \\r
e2de9939 906 } \\r
907 } \\r
ea8c405f 908}\r
909\r
cc41eb4f 910mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r
911mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r
912mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r
913 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
914mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r
915 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
ea8c405f 916\r
e2de9939 917#undef mk_text_out\r
ea8c405f 918\r
919\r
d34a42f9 920void update_movie(void)\r
ea8c405f 921{\r
922 int offs = Pico.m.frame_count*3 + 0x40;\r
923 if (offs+3 > movie_size) {\r
924 free(movie_data);\r
925 movie_data = 0;\r
b24e0f6c 926 emu_status_msg("END OF MOVIE.");\r
ea8c405f 927 lprintf("END OF MOVIE.\n");\r
ea8c405f 928 } else {\r
929 // MXYZ SACB RLDU\r
930 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
f8af9634 931 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C\r
932 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A\r
933 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B\r
ea8c405f 934 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
f8af9634 935 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C\r
936 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A\r
937 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B\r
ea8c405f 938 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
939 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
940 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
941 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
942 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
943 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
944 }\r
945}\r
946\r
ea8c405f 947static int try_ropen_file(const char *fname)\r
948{\r
949 FILE *f;\r
950\r
951 f = fopen(fname, "rb");\r
952 if (f) {\r
953 fclose(f);\r
954 return 1;\r
955 }\r
956 return 0;\r
957}\r
958\r
a47dd663 959char *emu_get_save_fname(int load, int is_sram, int slot)\r
ea8c405f 960{\r
ae87bffa 961 char *saveFname = static_buff;\r
ea8c405f 962 char ext[16];\r
963\r
964 if (is_sram)\r
965 {\r
6bc00695 966 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r
fcdefcf6 967 romfname_ext(saveFname, sizeof(static_buff),\r
968 (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);\r
6bc00695 969 if (!load)\r
970 return saveFname;\r
971\r
972 if (try_ropen_file(saveFname))\r
973 return saveFname;\r
974\r
fcdefcf6 975 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
6bc00695 976 if (try_ropen_file(saveFname))\r
977 return saveFname;\r
ea8c405f 978 }\r
979 else\r
980 {\r
6bc00695 981 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";\r
982 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";\r
ea8c405f 983 ext[0] = 0;\r
6bc00695 984 if (slot > 0 && slot < 10)\r
985 sprintf(ext, ".%i", slot);\r
986 strcat(ext, ext_main);\r
987\r
988 if (!load) {\r
fcdefcf6 989 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
6bc00695 990 return saveFname;\r
991 }\r
992 else {\r
fcdefcf6 993 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
6bc00695 994 if (try_ropen_file(saveFname))\r
995 return saveFname;\r
ea8c405f 996\r
fcdefcf6 997 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
6bc00695 998 if (try_ropen_file(saveFname))\r
999 return saveFname;\r
1000\r
1001 // try the other ext\r
1002 ext[0] = 0;\r
1003 if (slot > 0 && slot < 10)\r
1004 sprintf(ext, ".%i", slot);\r
1005 strcat(ext, ext_othr);\r
1006\r
fcdefcf6 1007 romfname_ext(saveFname, sizeof(static_buff), "mds"PATH_SEP, ext);\r
6bc00695 1008 if (try_ropen_file(saveFname))\r
1009 return saveFname;\r
ea8c405f 1010 }\r
1011 }\r
1012\r
6bc00695 1013 return NULL;\r
ea8c405f 1014}\r
1015\r
cca8800d 1016int emu_check_save_file(int slot, int *time)\r
ea8c405f 1017{\r
a47dd663 1018 return emu_get_save_fname(1, 0, slot) ? 1 : 0;\r
ea8c405f 1019}\r
1020\r
a47dd663 1021int emu_save_load_game(int load, int sram)\r
ea8c405f 1022{\r
1023 int ret = 0;\r
1024 char *saveFname;\r
1025\r
1026 // make save filename\r
a47dd663 1027 saveFname = emu_get_save_fname(load, sram, state_slot);\r
ea8c405f 1028 if (saveFname == NULL) {\r
d34a42f9 1029 if (!sram)\r
b24e0f6c 1030 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r
ea8c405f 1031 return -1;\r
1032 }\r
1033\r
1034 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1035\r
da42200b 1036 if (sram)\r
1037 {\r
ea8c405f 1038 FILE *sramFile;\r
1039 int sram_size;\r
1040 unsigned char *sram_data;\r
1041 int truncate = 1;\r
602133e1 1042 if (PicoAHW & PAHW_MCD)\r
1043 {\r
45f2f245 1044 if (PicoOpt & POPT_EN_MCD_RAMCART) {\r
ea8c405f 1045 sram_size = 0x12000;\r
1046 sram_data = SRam.data;\r
1047 if (sram_data)\r
1048 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
1049 } else {\r
1050 sram_size = 0x2000;\r
1051 sram_data = Pico_mcd->bram;\r
1052 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
1053 }\r
1054 } else {\r
45f2f245 1055 sram_size = SRam.size;\r
ea8c405f 1056 sram_data = SRam.data;\r
1057 }\r
b8a1c09a 1058 if (sram_data == NULL)\r
1059 return 0; // SRam forcefully disabled for this game\r
ea8c405f 1060\r
602133e1 1061 if (load)\r
1062 {\r
ea8c405f 1063 sramFile = fopen(saveFname, "rb");\r
b8a1c09a 1064 if (!sramFile)\r
1065 return -1;\r
1066 ret = fread(sram_data, 1, sram_size, sramFile);\r
1067 ret = ret > 0 ? 0 : -1;\r
ea8c405f 1068 fclose(sramFile);\r
602133e1 1069 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r
ea8c405f 1070 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
1071 } else {\r
1072 // sram save needs some special processing\r
1073 // see if we have anything to save\r
1074 for (; sram_size > 0; sram_size--)\r
1075 if (sram_data[sram_size-1]) break;\r
1076\r
1077 if (sram_size) {\r
1078 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
1079 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
1080 if (!sramFile) return -1;\r
1081 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
1082 ret = (ret != sram_size) ? -1 : 0;\r
1083 fclose(sramFile);\r
1084#ifndef NO_SYNC\r
1085 sync();\r
1086#endif\r
1087 }\r
1088 }\r
1089 return ret;\r
1090 }\r
1091 else\r
1092 {\r
bcc9eda0 1093 ret = PicoState(saveFname, !load);\r
1094 if (!ret) {\r
ea8c405f 1095#ifndef NO_SYNC\r
bcc9eda0 1096 if (!load) sync();\r
ea8c405f 1097#endif\r
54646a39 1098 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");\r
bcc9eda0 1099 } else {\r
b24e0f6c 1100 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r
ea8c405f 1101 ret = -1;\r
1102 }\r
1103\r
ea8c405f 1104 return ret;\r
1105 }\r
1106}\r
bdec53c9 1107\r
a47dd663 1108void emu_set_fastforward(int set_on)\r
c060a9ab 1109{\r
1110 static void *set_PsndOut = NULL;\r
1111 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
1112\r
1113 if (set_on && !is_on) {\r
1114 set_PsndOut = PsndOut;\r
1115 set_Frameskip = currentConfig.Frameskip;\r
1116 set_EmuOpt = currentConfig.EmuOpt;\r
1117 PsndOut = NULL;\r
1118 currentConfig.Frameskip = 8;\r
1119 currentConfig.EmuOpt &= ~4;\r
1120 currentConfig.EmuOpt |= 0x40000;\r
1121 is_on = 1;\r
b24e0f6c 1122 emu_status_msg("FAST FORWARD");\r
c060a9ab 1123 }\r
1124 else if (!set_on && is_on) {\r
1125 PsndOut = set_PsndOut;\r
1126 currentConfig.Frameskip = set_Frameskip;\r
1127 currentConfig.EmuOpt = set_EmuOpt;\r
1128 PsndRerate(1);\r
1129 is_on = 0;\r
1130 }\r
1131}\r
1132\r
d687ef50 1133static void emu_tray_open(void)\r
c060a9ab 1134{\r
d687ef50 1135 engineState = PGS_TrayMenu;\r
1136}\r
1137\r
1138static void emu_tray_close(void)\r
1139{\r
1140 emu_status_msg("CD tray closed.");\r
f2cf8472 1141}\r
1142\r
974fdb5b 1143void emu_32x_startup(void)\r
1144{\r
c7eb229a 1145 plat_video_toggle_renderer(0, 0); // HACK\r
974fdb5b 1146 system_announce();\r
c7eb229a 1147\r
1148 // force mode change event\r
1149 rendstatus_old = -1;\r
974fdb5b 1150}\r
1151\r
f2cf8472 1152void emu_reset_game(void)\r
1153{\r
1154 PicoReset();\r
1155 reset_timing = 1;\r
1156}\r
1157\r
1158void run_events_pico(unsigned int events)\r
1159{\r
1160 int lim_x;\r
1161\r
1162 if (events & PEV_PICO_SWINP) {\r
c060a9ab 1163 pico_inp_mode++;\r
d34a42f9 1164 if (pico_inp_mode > 2)\r
1165 pico_inp_mode = 0;\r
c060a9ab 1166 switch (pico_inp_mode) {\r
b24e0f6c 1167 case 2: emu_status_msg("Input: Pen on Pad"); break;\r
1168 case 1: emu_status_msg("Input: Pen on Storyware"); break;\r
1169 case 0: emu_status_msg("Input: Joystick");\r
c060a9ab 1170 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
1171 break;\r
1172 }\r
c060a9ab 1173 }\r
f2cf8472 1174 if (events & PEV_PICO_PPREV) {\r
c060a9ab 1175 PicoPicohw.page--;\r
d34a42f9 1176 if (PicoPicohw.page < 0)\r
1177 PicoPicohw.page = 0;\r
b24e0f6c 1178 emu_status_msg("Page %i", PicoPicohw.page);\r
c060a9ab 1179 }\r
f2cf8472 1180 if (events & PEV_PICO_PNEXT) {\r
c060a9ab 1181 PicoPicohw.page++;\r
d34a42f9 1182 if (PicoPicohw.page > 6)\r
1183 PicoPicohw.page = 6;\r
b24e0f6c 1184 emu_status_msg("Page %i", PicoPicohw.page);\r
c060a9ab 1185 }\r
f2cf8472 1186\r
1187 if (pico_inp_mode == 0)\r
1188 return;\r
1189\r
1190 /* handle other input modes */\r
1191 if (PicoPad[0] & 1) pico_pen_y--;\r
1192 if (PicoPad[0] & 2) pico_pen_y++;\r
1193 if (PicoPad[0] & 4) pico_pen_x--;\r
1194 if (PicoPad[0] & 8) pico_pen_x++;\r
1195 PicoPad[0] &= ~0x0f; // release UDLR\r
1196\r
1197 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
1198 if (pico_pen_y < 8)\r
1199 pico_pen_y = 8;\r
1200 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r
1201 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r
1202 if (pico_pen_x < 0)\r
1203 pico_pen_x = 0;\r
1204 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r
1205 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r
1206\r
1207 PicoPicohw.pen_pos[0] = pico_pen_x;\r
1208 if (!(Pico.video.reg[12] & 1))\r
1209 PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r
1210 PicoPicohw.pen_pos[0] += 0x3c;\r
1211 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
c060a9ab 1212}\r
1213\r
d34a42f9 1214static void do_turbo(int *pad, int acts)\r
f0f0d2df 1215{\r
1216 static int turbo_pad = 0;\r
1217 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1218 int inc = currentConfig.turbo_rate * 2;\r
1219\r
1220 if (acts & 0x1000) {\r
1221 turbo_cnt[0] += inc;\r
1222 if (turbo_cnt[0] >= 60)\r
1223 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1224 }\r
1225 if (acts & 0x2000) {\r
1226 turbo_cnt[1] += inc;\r
1227 if (turbo_cnt[1] >= 60)\r
1228 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1229 }\r
1230 if (acts & 0x4000) {\r
1231 turbo_cnt[2] += inc;\r
1232 if (turbo_cnt[2] >= 60)\r
1233 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1234 }\r
1235 *pad |= turbo_pad & (acts >> 8);\r
1236}\r
c060a9ab 1237\r
f2cf8472 1238static void run_events_ui(unsigned int which)\r
d34a42f9 1239{\r
1240 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r
1241 {\r
1242 int do_it = 1;\r
cca8800d 1243 if ( emu_check_save_file(state_slot, NULL) &&\r
fcdefcf6 1244 (((which & PEV_STATE_LOAD) && (currentConfig.confirm_save & EOPT_CONFIRM_LOAD)) ||\r
1245 ((which & PEV_STATE_SAVE) && (currentConfig.confirm_save & EOPT_CONFIRM_SAVE))) )\r
d34a42f9 1246 {\r
1247 const char *nm;\r
1248 char tmp[64];\r
1249 int keys, len;\r
1250\r
1251 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");\r
1252 len = strlen(tmp);\r
1253 nm = in_get_key_name(-1, -PBTN_MA3);\r
1254 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
1255 len = strlen(tmp);\r
1256 nm = in_get_key_name(-1, -PBTN_MBACK);\r
1257 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
1258\r
1259 plat_status_msg_busy_first(tmp);\r
1260\r
45285368 1261 in_set_config_int(0, IN_CFG_BLOCKING, 1);\r
13450307 1262 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))\r
d34a42f9 1263 ;\r
13450307 1264 while ( !((keys = in_menu_wait_any(NULL, 50)) & (PBTN_MA3|PBTN_MBACK)) )\r
d34a42f9 1265 ;\r
1266 if (keys & PBTN_MBACK)\r
1267 do_it = 0;\r
13450307 1268 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))\r
d34a42f9 1269 ;\r
45285368 1270 in_set_config_int(0, IN_CFG_BLOCKING, 0);\r
d34a42f9 1271 }\r
1272 if (do_it) {\r
54646a39 1273 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");\r
d34a42f9 1274 PicoStateProgressCB = plat_status_msg_busy_next;\r
a47dd663 1275 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r
d34a42f9 1276 PicoStateProgressCB = NULL;\r
1277 }\r
1278 }\r
5a681086 1279 if (which & PEV_SWITCH_RND)\r
d34a42f9 1280 {\r
5a681086 1281 plat_video_toggle_renderer(1, 0);\r
d34a42f9 1282 }\r
1283 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r
1284 {\r
1285 if (which & PEV_SSLOT_PREV) {\r
1286 state_slot -= 1;\r
1287 if (state_slot < 0)\r
1288 state_slot = 9;\r
1289 } else {\r
1290 state_slot += 1;\r
1291 if (state_slot > 9)\r
1292 state_slot = 0;\r
1293 }\r
1294\r
b24e0f6c 1295 emu_status_msg("SAVE SLOT %i [%s]", state_slot,\r
cca8800d 1296 emu_check_save_file(state_slot, NULL) ? "USED" : "FREE");\r
d34a42f9 1297 }\r
1298 if (which & PEV_MENU)\r
1299 engineState = PGS_Menu;\r
1300}\r
1301\r
1302void emu_update_input(void)\r
1303{\r
093b8a42 1304 static int prev_events = 0;\r
1305 int actions[IN_BINDTYPE_COUNT] = { 0, };\r
1306 int pl_actions[2];\r
1307 int events;\r
d34a42f9 1308\r
093b8a42 1309 in_update(actions);\r
d34a42f9 1310\r
093b8a42 1311 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r
1312 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r
d34a42f9 1313\r
093b8a42 1314 PicoPad[0] = pl_actions[0] & 0xfff;\r
1315 PicoPad[1] = pl_actions[1] & 0xfff;\r
d34a42f9 1316\r
093b8a42 1317 if (pl_actions[0] & 0x7000)\r
1318 do_turbo(&PicoPad[0], pl_actions[0]);\r
1319 if (pl_actions[1] & 0x7000)\r
1320 do_turbo(&PicoPad[1], pl_actions[1]);\r
1321\r
1322 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
d34a42f9 1323\r
1324 // volume is treated in special way and triggered every frame\r
1325 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r
1326 plat_update_volume(1, events & PEV_VOL_UP);\r
1327\r
093b8a42 1328 if ((events ^ prev_events) & PEV_FF) {\r
a47dd663 1329 emu_set_fastforward(events & PEV_FF);\r
d34a42f9 1330 plat_update_volume(0, 0);\r
f2cf8472 1331 reset_timing = 1;\r
d34a42f9 1332 }\r
1333\r
093b8a42 1334 events &= ~prev_events;\r
d34a42f9 1335\r
f2cf8472 1336 if (PicoAHW == PAHW_PICO)\r
1337 run_events_pico(events);\r
d34a42f9 1338 if (events)\r
f2cf8472 1339 run_events_ui(events);\r
d34a42f9 1340 if (movie_data)\r
1341 update_movie();\r
1342\r
093b8a42 1343 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
d34a42f9 1344}\r
1345\r
f2cf8472 1346static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r
1347{\r
1348 strcpy(path_with_reserve + pos, name);\r
1349 if (plat_is_dir(path_with_reserve))\r
1350 return;\r
1351 if (mkdir(path_with_reserve, 0777) < 0)\r
1352 lprintf("failed to create: %s\n", path_with_reserve);\r
1353}\r
1354\r
a4edca53 1355void emu_cmn_forced_frame(int no_scale, int do_emu)\r
1356{\r
1357 int po_old = PicoOpt;\r
1358\r
1359 memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
1360\r
8340e7c9 1361 PicoOpt &= ~POPT_ALT_RENDERER;\r
a4edca53 1362 PicoOpt |= POPT_ACC_SPRITES;\r
1363 if (!no_scale)\r
1364 PicoOpt |= POPT_EN_SOFTSCALE;\r
1365\r
1366 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
1367 Pico.m.dirtyPal = 1;\r
1368 if (do_emu)\r
1369 PicoFrame();\r
1370 else\r
1371 PicoFrameDrawOnly();\r
1372\r
1373 PicoOpt = po_old;\r
1374}\r
1375\r
f2cf8472 1376void emu_init(void)\r
1377{\r
27701801 1378 char path[512];\r
f2cf8472 1379 int pos;\r
1380\r
83ff19ec 1381#if 0\r
1382 // FIXME: handle through menu, etc\r
1383 FILE *f;\r
1384 f = fopen("32X_M_BIOS.BIN", "rb");\r
1385 p32x_bios_m = malloc(2048);\r
1386 fread(p32x_bios_m, 1, 2048, f);\r
1387 fclose(f);\r
1388 f = fopen("32X_S_BIOS.BIN", "rb");\r
1389 p32x_bios_s = malloc(1024);\r
1390 fread(p32x_bios_s, 1, 1024, f);\r
1391 fclose(f);\r
1392#endif\r
1393\r
f2cf8472 1394 /* make dirs for saves */\r
27701801 1395 pos = plat_get_root_dir(path, sizeof(path) - 4);\r
1396 mkdir_path(path, pos, "mds");\r
1397 mkdir_path(path, pos, "srm");\r
1398 mkdir_path(path, pos, "brm");\r
1399\r
f6c49d38 1400 pprof_init();\r
1401\r
27701801 1402 make_config_cfg(path);\r
1403 config_readlrom(path);\r
f2cf8472 1404\r
1405 PicoInit();\r
1406 PicoMessage = plat_status_msg_busy_next;\r
d687ef50 1407 PicoMCDopenTray = emu_tray_open;\r
1408 PicoMCDcloseTray = emu_tray_close;\r
f2cf8472 1409}\r
1410\r
1411void emu_finish(void)\r
1412{\r
1413 // save SRAM\r
a47dd663 1414 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1415 emu_save_load_game(0, 1);\r
f2cf8472 1416 SRam.changed = 0;\r
1417 }\r
1418\r
27701801 1419 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r
1420 char cfg[512];\r
1421 make_config_cfg(cfg);\r
1422 config_writelrom(cfg);\r
1423#ifndef NO_SYNC\r
1424 sync();\r
1425#endif\r
1426 }\r
f2cf8472 1427\r
f6c49d38 1428 pprof_finish();\r
1429\r
f2cf8472 1430 PicoExit();\r
1431}\r
1432\r
b24e0f6c 1433static void skip_frame(int do_audio)\r
1434{\r
1435 PicoSkipFrame = do_audio ? 1 : 2;\r
1436 PicoFrame();\r
1437 PicoSkipFrame = 0;\r
1438}\r
1439\r
1440/* our tick here is 1 us right now */\r
1441#define ms_to_ticks(x) (unsigned int)(x * 1000)\r
1442#define get_ticks() plat_get_ticks_us()\r
1443\r
1444void emu_loop(void)\r
1445{\r
1446 int pframes_done; /* "period" frames, used for sync */\r
1447 int frames_done, frames_shown; /* actual frames for fps counter */\r
19954be1 1448 int target_fps, target_frametime;\r
b24e0f6c 1449 unsigned int timestamp_base = 0, timestamp_fps;\r
1450 char *notice_msg = NULL;\r
1451 char fpsbuff[24];\r
1452 int i;\r
1453\r
1454 fpsbuff[0] = 0;\r
1455\r
1456 /* make sure we are in correct mode */\r
b24e0f6c 1457 Pico.m.dirtyPal = 1;\r
19954be1 1458 rendstatus_old = -1;\r
b24e0f6c 1459\r
46bcb899 1460 PicoLoopPrepare();\r
1461\r
1462 // prepare CD buffer\r
1463 if (PicoAHW & PAHW_MCD)\r
1464 PicoCDBufferInit();\r
1465\r
1466 pemu_loop_prep();\r
1467\r
b24e0f6c 1468 /* number of ticks per frame */\r
1469 if (Pico.m.pal) {\r
1470 target_fps = 50;\r
1471 target_frametime = ms_to_ticks(1000) / 50;\r
1472 } else {\r
1473 target_fps = 60;\r
1474 target_frametime = ms_to_ticks(1000) / 60 + 1;\r
1475 }\r
1476\r
b24e0f6c 1477 timestamp_fps = get_ticks();\r
1478 reset_timing = 1;\r
1479\r
1480 frames_done = frames_shown = pframes_done = 0;\r
1481\r
7b436906 1482 plat_video_wait_vsync();\r
1483\r
b24e0f6c 1484 /* loop with resync every 1 sec. */\r
1485 while (engineState == PGS_Running)\r
1486 {\r
1487 unsigned int timestamp;\r
1488 int diff, diff_lim;\r
b24e0f6c 1489\r
f6c49d38 1490 pprof_start(main);\r
1491\r
b24e0f6c 1492 timestamp = get_ticks();\r
1493 if (reset_timing) {\r
1494 reset_timing = 0;\r
1495 timestamp_base = timestamp;\r
1496 pframes_done = 0;\r
1497 }\r
1498\r
1499 // show notice_msg message?\r
1500 if (notice_msg_time != 0)\r
1501 {\r
1502 static int noticeMsgSum;\r
54646a39 1503 if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {\r
b24e0f6c 1504 notice_msg_time = 0;\r
1505 plat_status_msg_clear();\r
1506 notice_msg = NULL;\r
1507 } else {\r
1508 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];\r
1509 if (sum != noticeMsgSum) {\r
1510 plat_status_msg_clear();\r
1511 noticeMsgSum = sum;\r
1512 }\r
1513 notice_msg = noticeMsg;\r
1514 }\r
1515 }\r
1516\r
b24e0f6c 1517 // second changed?\r
1518 if (timestamp - timestamp_fps >= ms_to_ticks(1000))\r
1519 {\r
1520#ifdef BENCHMARK\r
1521 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1522 if (++bench == 10) {\r
1523 bench = 0;\r
1524 bench_fps_s = bench_fps;\r
1525 bf[bfp++ & 3] = bench_fps;\r
1526 bench_fps = 0;\r
1527 }\r
1528 bench_fps += frames_shown;\r
1529 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
07e5dbab 1530 printf("%s\n", fpsbuff);\r
b24e0f6c 1531#else\r
1532 if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {\r
1533 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1534 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
1535 }\r
1536#endif\r
1537 frames_shown = frames_done = 0;\r
1538 timestamp_fps += ms_to_ticks(1000);\r
1539 }\r
1540#ifdef PFRAMES\r
1541 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
1542#endif\r
1543\r
1544 if (timestamp - timestamp_base >= ms_to_ticks(1000))\r
1545 {\r
21ecaf23 1546 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)\r
b24e0f6c 1547 pframes_done = 0;\r
5a681086 1548 else\r
b24e0f6c 1549 pframes_done -= target_fps;\r
5a681086 1550 if (pframes_done < -2) {\r
1551 /* don't drag more than 2 frames behind */\r
1552 pframes_done = -2;\r
1553 timestamp_base = timestamp - 2 * target_frametime;\r
21ecaf23 1554 }\r
5a681086 1555 else\r
1556 timestamp_base += ms_to_ticks(1000);\r
b24e0f6c 1557 }\r
1558\r
1559 diff = timestamp - timestamp_base;\r
1560 diff_lim = (pframes_done + 1) * target_frametime;\r
1561\r
1562 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
1563 {\r
1564 for (i = 0; i < currentConfig.Frameskip; i++) {\r
1565 emu_update_input();\r
1566 skip_frame(1);\r
1567 pframes_done++; frames_done++;\r
1568 diff_lim += target_frametime;\r
1569\r
ae87bffa 1570 if (!(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT))) {\r
b24e0f6c 1571 timestamp = get_ticks();\r
1572 diff = timestamp - timestamp_base;\r
0d83abe2 1573 if (!reset_timing && diff < diff_lim) // we are too fast\r
b24e0f6c 1574 plat_wait_till_us(timestamp_base + diff_lim);\r
1575 }\r
1576 }\r
1577 }\r
1578 else if (diff > diff_lim)\r
1579 {\r
1580 /* no time left for this frame - skip */\r
5a681086 1581 /* limit auto frameskip to 8 */\r
1582 if (frames_done / 8 <= frames_shown) {\r
1583 emu_update_input();\r
1584 skip_frame(diff < diff_lim + target_frametime * 16);\r
1585 pframes_done++; frames_done++;\r
b24e0f6c 1586 continue;\r
1587 }\r
b24e0f6c 1588 }\r
1589\r
1590 emu_update_input();\r
1591 PicoFrame();\r
d08e7326 1592 pemu_finalize_frame(fpsbuff, notice_msg);\r
1593\r
f6c49d38 1594 // plat_video_flip();\r
b24e0f6c 1595\r
1596 /* frame limiter */\r
ae87bffa 1597 if (!reset_timing && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT)))\r
b24e0f6c 1598 {\r
1599 timestamp = get_ticks();\r
1600 diff = timestamp - timestamp_base;\r
1601\r
1602 // sleep or vsync if we are still too fast\r
1603 if (diff < diff_lim)\r
1604 {\r
1605 // we are too fast\r
7b436906 1606 plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);\r
1607 if (currentConfig.EmuOpt & EOPT_VSYNC)\r
b24e0f6c 1608 plat_video_wait_vsync();\r
b24e0f6c 1609 }\r
1610 }\r
1611\r
d08e7326 1612 // XXX: for some plats it might be better to flip before vsync\r
1613 // (due to shadow registers in display hw)\r
1614 plat_video_flip();\r
b24e0f6c 1615\r
1616 pframes_done++; frames_done++; frames_shown++;\r
f6c49d38 1617\r
1618 pprof_end(main);\r
b24e0f6c 1619 }\r
1620\r
1621 emu_set_fastforward(0);\r
1622\r
b24e0f6c 1623 // save SRAM\r
1624 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1625 plat_status_msg_busy_first("Writing SRAM/BRAM...");\r
1626 emu_save_load_game(0, 1);\r
1627 SRam.changed = 0;\r
1628 }\r
1629\r
b24e0f6c 1630 pemu_loop_end();\r
730259b7 1631\r
1632 // pemu_loop_end() might want to do 1 frame for bg image,\r
1633 // so free CD buffer here\r
1634 if (PicoAHW & PAHW_MCD)\r
1635 PicoCDBufferFree();\r
b24e0f6c 1636}\r
1637\r
fast MegaDrive/MegaCD/32X emulator