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starting SDL port, refactoring
[picodrive.git] / platform / common / emu.c
CommitLineData
cff531af 1/*\r
2 * PicoDrive\r
3 * (C) notaz, 2007-2010\r
4 *\r
5 * This work is licensed under the terms of MAME license.\r
6 * See COPYING file in the top-level directory.\r
7 */\r
ea8c405f 8\r
9#include <stdio.h>\r
10#include <stdlib.h>\r
b24e0f6c 11#include <stdarg.h>\r
ea8c405f 12#ifndef NO_SYNC\r
13#include <unistd.h>\r
14#endif\r
15\r
e743be20 16#include "../libpicofe/posix.h"\r
17#include "../libpicofe/input.h"\r
18#include "../libpicofe/fonts.h"\r
19#include "../libpicofe/lprintf.h"\r
20#include "../libpicofe/plat.h"\r
ea8c405f 21#include "emu.h"\r
e743be20 22#include "input_pico.h"\r
23#include "menu_pico.h"\r
58c86d00 24#include "config.h"\r
ea8c405f 25\r
efcba75f 26#include <pico/pico_int.h>\r
27#include <pico/patch.h>\r
28#include <pico/cd/cue.h>\r
ea8c405f 29\r
ea8c405f 30\r
54646a39 31#define STATUS_MSG_TIMEOUT 2000\r
32\r
e2de9939 33void *g_screen_ptr;\r
34\r
35#if !SCREEN_SIZE_FIXED\r
36int g_screen_width = SCREEN_WIDTH;\r
37int g_screen_height = SCREEN_HEIGHT;\r
38#endif\r
39\r
c46ffd31 40char *PicoConfigFile = "config.cfg";\r
58c86d00 41currentConfig_t currentConfig, defaultConfig;\r
ea8c405f 42int state_slot = 0;\r
43int config_slot = 0, config_slot_current = 0;\r
f2cf8472 44int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
c060a9ab 45int pico_inp_mode = 0;\r
713c9224 46int engineState = PGS_Menu;\r
47\r
ae87bffa 48/* tmp buff to reduce stack usage for plats with small stack */\r
49static char static_buff[512];\r
636d5f25 50const char *rom_fname_reload;\r
ae87bffa 51char rom_fname_loaded[512];\r
713c9224 52int rom_loaded = 0;\r
f2cf8472 53int reset_timing = 0;\r
b24e0f6c 54static unsigned int notice_msg_time; /* when started showing */\r
55static char noticeMsg[40];\r
ea8c405f 56\r
57unsigned char *movie_data = NULL;\r
58static int movie_size = 0;\r
59\r
ea8c405f 60\r
ee2a3bdf 61/* don't use tolower() for easy old glibc binary compatibility */\r
f8af9634 62static void strlwr_(char *string)\r
ea8c405f 63{\r
f8af9634 64 char *p;\r
65 for (p = string; *p; p++)\r
ee2a3bdf 66 if ('A' <= *p && *p <= 'Z')\r
67 *p += 'a' - 'A';\r
ea8c405f 68}\r
69\r
ca482e5d 70static int try_rfn_cut(char *fname)\r
ea8c405f 71{\r
72 FILE *tmp;\r
73 char *p;\r
74\r
ca482e5d 75 p = fname + strlen(fname) - 1;\r
76 for (; p > fname; p--)\r
ea8c405f 77 if (*p == '.') break;\r
78 *p = 0;\r
79\r
ca482e5d 80 if((tmp = fopen(fname, "rb"))) {\r
ea8c405f 81 fclose(tmp);\r
82 return 1;\r
83 }\r
84 return 0;\r
85}\r
86\r
35e3031a 87static void get_ext(const char *file, char *ext)\r
ea8c405f 88{\r
35e3031a 89 const char *p;\r
ea8c405f 90\r
91 p = file + strlen(file) - 4;\r
92 if (p < file) p = file;\r
93 strncpy(ext, p, 4);\r
94 ext[4] = 0;\r
95 strlwr_(ext);\r
96}\r
97\r
fcdefcf6 98static void fname_ext(char *dst, int dstlen, const char *prefix, const char *ext, const char *fname)\r
99{\r
100 int prefix_len = 0;\r
101 const char *p;\r
102\r
103 *dst = 0;\r
104 if (prefix) {\r
105 int len = plat_get_root_dir(dst, dstlen);\r
106 strcpy(dst + len, prefix);\r
107 prefix_len = len + strlen(prefix);\r
108 }\r
109\r
110 p = fname + strlen(fname) - 1;\r
111 for (; p >= fname && *p != PATH_SEP_C; p--)\r
112 ;\r
113 p++;\r
114 strncpy(dst + prefix_len, p, dstlen - prefix_len - 1);\r
115\r
116 dst[dstlen - 8] = 0;\r
117 if (dst[strlen(dst) - 4] == '.')\r
118 dst[strlen(dst) - 4] = 0;\r
119 if (ext)\r
120 strcat(dst, ext);\r
121}\r
122\r
123static void romfname_ext(char *dst, int dstlen, const char *prefix, const char *ext)\r
124{\r
125 fname_ext(dst, dstlen, prefix, ext, rom_fname_loaded);\r
126}\r
127\r
b24e0f6c 128void emu_status_msg(const char *format, ...)\r
129{\r
130 va_list vl;\r
54646a39 131 int ret;\r
b24e0f6c 132\r
133 va_start(vl, format);\r
54646a39 134 ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);\r
b24e0f6c 135 va_end(vl);\r
136\r
54646a39 137 /* be sure old text gets overwritten */\r
138 for (; ret < 28; ret++)\r
139 noticeMsg[ret] = ' ';\r
140 noticeMsg[ret] = 0;\r
141\r
b24e0f6c 142 notice_msg_time = plat_get_ticks_ms();\r
143}\r
144\r
54646a39 145static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r
146static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r
147static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
ea8c405f 148\r
636d5f25 149static int find_bios(int region, const char **bios_file)\r
ea8c405f 150{\r
ea8c405f 151 int i, count;\r
54646a39 152 const char * const *files;\r
ea8c405f 153 FILE *f = NULL;\r
154\r
155 if (region == 4) { // US\r
156 files = biosfiles_us;\r
157 count = sizeof(biosfiles_us) / sizeof(char *);\r
158 } else if (region == 8) { // EU\r
159 files = biosfiles_eu;\r
160 count = sizeof(biosfiles_eu) / sizeof(char *);\r
161 } else if (region == 1 || region == 2) {\r
162 files = biosfiles_jp;\r
163 count = sizeof(biosfiles_jp) / sizeof(char *);\r
164 } else {\r
165 return 0;\r
166 }\r
167\r
168 for (i = 0; i < count; i++)\r
169 {\r
ae87bffa 170 emu_make_path(static_buff, files[i], sizeof(static_buff) - 4);\r
171 strcat(static_buff, ".bin");\r
172 f = fopen(static_buff, "rb");\r
ea8c405f 173 if (f) break;\r
174\r
ae87bffa 175 static_buff[strlen(static_buff) - 4] = 0;\r
176 strcat(static_buff, ".zip");\r
177 f = fopen(static_buff, "rb");\r
ea8c405f 178 if (f) break;\r
179 }\r
180\r
181 if (f) {\r
ae87bffa 182 lprintf("using bios: %s\n", static_buff);\r
ea8c405f 183 fclose(f);\r
ae87bffa 184 if (bios_file)\r
185 *bios_file = static_buff;\r
ea8c405f 186 return 1;\r
187 } else {\r
ae87bffa 188 sprintf(static_buff, "no %s BIOS files found, read docs",\r
ea8c405f 189 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
e743be20 190 menu_update_msg(static_buff);\r
ea8c405f 191 return 0;\r
192 }\r
193}\r
194\r
c6196c0f 195/* check if the name begins with BIOS name */\r
1ca2ea4f 196/*\r
c6196c0f 197static int emu_isBios(const char *name)\r
198{\r
199 int i;\r
200 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
201 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
202 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
203 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
204 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
205 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
206 return 0;\r
207}\r
1ca2ea4f 208*/\r
c6196c0f 209\r
1ca2ea4f 210static unsigned char id_header[0x100];\r
58c86d00 211\r
3e49ffd0 212/* checks if fname points to valid MegaCD image */\r
35e3031a 213static int emu_cd_check(int *pregion, const char *fname_in)\r
ea8c405f 214{\r
35e3031a 215 const char *fname = fname_in;\r
ea8c405f 216 unsigned char buf[32];\r
217 pm_file *cd_f;\r
9037e45d 218 int region = 4; // 1: Japan, 4: US, 8: Europe\r
35e3031a 219 char ext[5];\r
9037e45d 220 cue_track_type type = CT_UNKNOWN;\r
221 cue_data_t *cue_data = NULL;\r
b923ecbe 222\r
ca482e5d 223 get_ext(fname_in, ext);\r
9037e45d 224 if (strcasecmp(ext, ".cue") == 0) {\r
ca482e5d 225 cue_data = cue_parse(fname_in);\r
9037e45d 226 if (cue_data != NULL) {\r
227 fname = cue_data->tracks[1].fname;\r
228 type = cue_data->tracks[1].type;\r
229 }\r
f9f40f10 230 else\r
231 return -1;\r
9037e45d 232 }\r
233\r
234 cd_f = pm_open(fname);\r
235 if (cue_data != NULL)\r
236 cue_destroy(cue_data);\r
ea8c405f 237\r
f9f40f10 238 if (cd_f == NULL) return 0; // let the upper level handle this\r
ea8c405f 239\r
240 if (pm_read(buf, 32, cd_f) != 32) {\r
241 pm_close(cd_f);\r
f9f40f10 242 return -1;\r
ea8c405f 243 }\r
244\r
9037e45d 245 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {\r
246 if (type && type != CT_ISO)\r
247 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
248 type = CT_ISO; // Sega CD (ISO)\r
249 }\r
250 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {\r
251 if (type && type != CT_BIN)\r
252 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
253 type = CT_BIN; // Sega CD (BIN)\r
254 }\r
255\r
256 if (type == CT_UNKNOWN) {\r
ea8c405f 257 pm_close(cd_f);\r
258 return 0;\r
259 }\r
260\r
9037e45d 261 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);\r
1ca2ea4f 262 pm_read(id_header, sizeof(id_header), cd_f);\r
58c86d00 263\r
ea8c405f 264 /* it seems we have a CD image here. Try to detect region now.. */\r
9037e45d 265 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
ea8c405f 266 pm_read(buf, 1, cd_f);\r
267 pm_close(cd_f);\r
268\r
269 if (buf[0] == 0x64) region = 8; // EU\r
270 if (buf[0] == 0xa1) region = 1; // JAP\r
271\r
272 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
9037e45d 273 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
ea8c405f 274\r
275 if (pregion != NULL) *pregion = region;\r
276\r
277 return type;\r
278}\r
279\r
3e49ffd0 280static int detect_media(const char *fname)\r
281{\r
282 static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 };\r
87b0845f 283 static const char *sms_exts[] = { "sms", "gg", "sg" };\r
284 static const char *md_exts[] = { "gen", "bin", "smd" };\r
285 char buff0[32], buff[32];\r
286 unsigned short *d16;\r
3e49ffd0 287 pm_file *pmf;\r
3e49ffd0 288 char ext[5];\r
289 int i;\r
290\r
291 get_ext(fname, ext);\r
292\r
293 // detect wrong extensions\r
294 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) // s.gz ~ .mds.gz\r
295 return PM_BAD;\r
296\r
297 /* don't believe in extensions, except .cue */\r
298 if (strcasecmp(ext, ".cue") == 0)\r
299 return PM_CD;\r
300\r
301 pmf = pm_open(fname);\r
302 if (pmf == NULL)\r
303 return PM_BAD;\r
304\r
87b0845f 305 if (pm_read(buff0, 32, pmf) != 32) {\r
3e49ffd0 306 pm_close(pmf);\r
307 return PM_BAD;\r
308 }\r
309\r
87b0845f 310 if (strncasecmp("SEGADISCSYSTEM", buff0 + 0x00, 14) == 0 ||\r
311 strncasecmp("SEGADISCSYSTEM", buff0 + 0x10, 14) == 0) {\r
3e49ffd0 312 pm_close(pmf);\r
313 return PM_CD;\r
314 }\r
315\r
87b0845f 316 /* check for SMD evil */\r
317 if (pmf->size >= 0x4200 && (pmf->size & 0x3fff) == 0x200) {\r
318 if (pm_seek(pmf, sms_offsets[0] + 0x200, SEEK_SET) == sms_offsets[0] + 0x200 &&\r
319 pm_read(buff, 16, pmf) == 16 &&\r
320 strncmp("TMR SEGA", buff, 8) == 0)\r
321 goto looks_like_sms;\r
322\r
323 /* could parse further but don't bother */\r
324 goto extension_check;\r
325 }\r
326\r
327 /* MD header? Act as TMSS BIOS here */\r
328 if (pm_seek(pmf, 0x100, SEEK_SET) == 0x100 && pm_read(buff, 16, pmf) == 16) {\r
329 if (strncmp(buff, "SEGA", 4) == 0 || strncmp(buff, " SEG", 4) == 0)\r
330 goto looks_like_md;\r
331 }\r
332\r
3e49ffd0 333 for (i = 0; i < array_size(sms_offsets); i++) {\r
334 if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i])\r
87b0845f 335 continue;\r
3e49ffd0 336\r
337 if (pm_read(buff, 16, pmf) != 16)\r
87b0845f 338 continue;\r
3e49ffd0 339\r
87b0845f 340 if (strncmp("TMR SEGA", buff, 8) == 0)\r
341 goto looks_like_sms;\r
342 }\r
343\r
344extension_check:\r
345 /* probably some headerless thing. Maybe check the extension after all. */\r
346 for (i = 0; i < array_size(md_exts); i++)\r
347 if (strcasecmp(pmf->ext, md_exts[i]) == 0)\r
348 goto looks_like_md;\r
349\r
350 for (i = 0; i < array_size(sms_exts); i++)\r
351 if (strcasecmp(pmf->ext, sms_exts[i]) == 0)\r
352 goto looks_like_sms;\r
353\r
354 /* If everything else fails, make a guess on the reset vector */\r
355 d16 = (unsigned short *)(buff0 + 4);\r
356 if ((((d16[0] << 16) | d16[1]) & 0xffffff) >= pmf->size) {\r
357 lprintf("bad MD reset vector, assuming SMS\n");\r
358 goto looks_like_sms;\r
3e49ffd0 359 }\r
360\r
87b0845f 361looks_like_md:\r
3e49ffd0 362 pm_close(pmf);\r
3e49ffd0 363 return PM_MD_CART;\r
87b0845f 364\r
365looks_like_sms:\r
366 pm_close(pmf);\r
367 return PM_MARK3;\r
3e49ffd0 368}\r
369\r
7a87643e 370static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r
58c86d00 371{\r
372 char *p = dest;\r
373 int i;\r
374\r
375 if (swab) swab = 1;\r
376\r
377 for (i = len - 1; i >= 0; i--)\r
378 {\r
379 if (src[i^swab] != ' ') break;\r
380 }\r
381 len = i + 1;\r
382\r
383 for (i = 0; i < len; i++)\r
384 {\r
385 unsigned char s = src[i^swab];\r
386 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
387 s != '[' && s != ']' && s != '\\')\r
388 {\r
389 *p++ = s;\r
390 }\r
391 else\r
392 {\r
393 sprintf(p, "\\%02x", s);\r
394 p += 3;\r
395 }\r
396 }\r
397\r
398 return p - dest;\r
399}\r
400\r
fcdefcf6 401static char *emu_make_rom_id(const char *fname)\r
58c86d00 402{\r
ca482e5d 403 static char id_string[3+0xe*3+0x3*3+0x30*3+3];\r
bdec53c9 404 int pos, swab = 1;\r
58c86d00 405\r
602133e1 406 if (PicoAHW & PAHW_MCD) {\r
bdec53c9 407 strcpy(id_string, "CD|");\r
408 swab = 0;\r
409 }\r
fcdefcf6 410 else if (PicoAHW & PAHW_SMS)\r
411 strcpy(id_string, "MS|");\r
412 else strcpy(id_string, "MD|");\r
58c86d00 413 pos = 3;\r
414\r
fcdefcf6 415 if (!(PicoAHW & PAHW_SMS)) {\r
416 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r
417 id_string[pos] = '|'; pos++;\r
418 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r
419 id_string[pos] = '|'; pos++;\r
420 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r
421 id_string[pos] = 0;\r
422 if (pos > 5)\r
423 return id_string;\r
424 pos = 3;\r
425 }\r
426\r
427 // can't find name in ROM, use filename\r
428 fname_ext(id_string + 3, sizeof(id_string) - 3, NULL, NULL, fname);\r
58c86d00 429\r
58c86d00 430 return id_string;\r
431}\r
432\r
ca482e5d 433// buffer must be at least 150 byte long\r
a47dd663 434void emu_get_game_name(char *str150)\r
ca482e5d 435{\r
436 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;\r
437 char *s, *d;\r
438\r
439 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name\r
440\r
441 for (s = d = str150 + 1; s < str150+ret; s++)\r
442 {\r
443 if (*s == 0) break;\r
444 if (*s != ' ' || d[-1] != ' ')\r
445 *d++ = *s;\r
446 }\r
447 *d = 0;\r
448}\r
449\r
a47dd663 450static void shutdown_MCD(void)\r
451{\r
452 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)\r
453 Stop_CD();\r
454 PicoAHW &= ~PAHW_MCD;\r
455}\r
456\r
974fdb5b 457static void system_announce(void)\r
458{\r
f3a57b2d 459 const char *sys_name, *tv_standard, *extra = "";\r
974fdb5b 460 int fps;\r
461\r
462 if (PicoAHW & PAHW_SMS) {\r
463 sys_name = "Master System";\r
f3a57b2d 464#ifdef NO_SMS\r
465 extra = " [no support]";\r
466#endif\r
974fdb5b 467 } else if (PicoAHW & PAHW_PICO) {\r
468 sys_name = "Pico";\r
469 } else if (PicoAHW & PAHW_MCD) {\r
470 sys_name = "Mega CD";\r
471 if ((Pico.m.hardware & 0xc0) == 0x80)\r
472 sys_name = "Sega CD";\r
473 } else if (PicoAHW & PAHW_32X) {\r
474 sys_name = "32X";\r
475 } else {\r
476 sys_name = "MegaDrive";\r
477 if ((Pico.m.hardware & 0xc0) == 0x80)\r
478 sys_name = "Genesis";\r
479 }\r
480 tv_standard = Pico.m.pal ? "PAL" : "NTSC";\r
481 fps = Pico.m.pal ? 50 : 60;\r
482\r
f3a57b2d 483 emu_status_msg("%s %s / %dFPS%s", tv_standard, sys_name, fps, extra);\r
974fdb5b 484}\r
485\r
3e49ffd0 486// XXX: portions of this code should move to pico/\r
636d5f25 487int emu_reload_rom(const char *rom_fname_in)\r
ea8c405f 488{\r
489 unsigned int rom_size = 0;\r
636d5f25 490 const char *used_rom_name = NULL;\r
491 char *rom_fname = NULL;\r
eacee137 492 unsigned char *rom_data = NULL;\r
ea8c405f 493 char ext[5];\r
f9f40f10 494 pm_file *rom = NULL;\r
3e49ffd0 495 int cd_state = CIT_NOT_CD;\r
496 int ret, media_type, cd_region;\r
497 int cfg_loaded = 0, bad_rom = 0;\r
636d5f25 498 int menu_romload_started = 0;\r
499 int retval = 0;\r
ea8c405f 500\r
636d5f25 501 lprintf("emu_ReloadRom(%s)\n", rom_fname_in);\r
ea8c405f 502\r
636d5f25 503 rom_fname = strdup(rom_fname_in);\r
504 if (rom_fname == NULL)\r
505 return 0;\r
506\r
507 used_rom_name = rom_fname;\r
ca482e5d 508 get_ext(rom_fname, ext);\r
ea8c405f 509\r
77189b7d 510 // early cleanup\r
511 PicoPatchUnload();\r
eacee137 512 if (movie_data) {\r
ea8c405f 513 free(movie_data);\r
514 movie_data = 0;\r
515 }\r
77189b7d 516\r
2d2247c2 517 if (!strcmp(ext, ".gmv"))\r
518 {\r
ea8c405f 519 // check for both gmv and rom\r
520 int dummy;\r
ca482e5d 521 FILE *movie_file = fopen(rom_fname, "rb");\r
b8a1c09a 522 if (!movie_file) {\r
e743be20 523 menu_update_msg("Failed to open movie.");\r
636d5f25 524 goto out;\r
ea8c405f 525 }\r
526 fseek(movie_file, 0, SEEK_END);\r
527 movie_size = ftell(movie_file);\r
528 fseek(movie_file, 0, SEEK_SET);\r
b8a1c09a 529 if (movie_size < 64+3) {\r
e743be20 530 menu_update_msg("Invalid GMV file.");\r
ea8c405f 531 fclose(movie_file);\r
636d5f25 532 goto out;\r
ea8c405f 533 }\r
534 movie_data = malloc(movie_size);\r
b8a1c09a 535 if (movie_data == NULL) {\r
e743be20 536 menu_update_msg("low memory.");\r
ea8c405f 537 fclose(movie_file);\r
636d5f25 538 goto out;\r
ea8c405f 539 }\r
b8a1c09a 540 dummy = fread(movie_data, 1, movie_size, movie_file);\r
ea8c405f 541 fclose(movie_file);\r
542 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
e743be20 543 menu_update_msg("Invalid GMV file.");\r
636d5f25 544 goto out;\r
ea8c405f 545 }\r
ca482e5d 546 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
ea8c405f 547 if (!dummy) {\r
e743be20 548 menu_update_msg("Could't find a ROM for movie.");\r
636d5f25 549 goto out;\r
ea8c405f 550 }\r
ca482e5d 551 get_ext(rom_fname, ext);\r
f8af9634 552 lprintf("gmv loaded for %s\n", rom_fname);\r
ea8c405f 553 }\r
ca482e5d 554 else if (!strcmp(ext, ".pat"))\r
555 {\r
ea8c405f 556 int dummy;\r
ca482e5d 557 PicoPatchLoad(rom_fname);\r
558 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
ea8c405f 559 if (!dummy) {\r
e743be20 560 menu_update_msg("Could't find a ROM to patch.");\r
636d5f25 561 goto out;\r
ea8c405f 562 }\r
ca482e5d 563 get_ext(rom_fname, ext);\r
ea8c405f 564 }\r
565\r
3e49ffd0 566 media_type = detect_media(rom_fname);\r
567 if (media_type == PM_BAD) {\r
e743be20 568 menu_update_msg("Not a ROM/CD img selected.");\r
636d5f25 569 goto out;\r
3e49ffd0 570 }\r
571\r
a47dd663 572 shutdown_MCD();\r
5e49c3a8 573 PicoCartUnload();\r
574 rom_loaded = 0;\r
575\r
87b0845f 576 PicoAHW = 0;\r
ea8c405f 577\r
3e49ffd0 578 if (media_type == PM_CD)\r
ea8c405f 579 {\r
3e49ffd0 580 // check for MegaCD image\r
581 cd_state = emu_cd_check(&cd_region, rom_fname);\r
582 if (cd_state >= 0 && cd_state != CIT_NOT_CD)\r
583 {\r
584 // valid CD image, check for BIOS..\r
ea8c405f 585\r
3e49ffd0 586 // we need to have config loaded at this point\r
fcdefcf6 587 ret = emu_read_config(rom_fname, 0);\r
588 if (!ret) emu_read_config(NULL, 0);\r
3e49ffd0 589 cfg_loaded = 1;\r
ea8c405f 590\r
3e49ffd0 591 if (PicoRegionOverride) {\r
592 cd_region = PicoRegionOverride;\r
593 lprintf("override region to %s\n", cd_region != 4 ?\r
594 (cd_region == 8 ? "EU" : "JAP") : "USA");\r
595 }\r
596 if (!find_bios(cd_region, &used_rom_name))\r
636d5f25 597 goto out;\r
3e49ffd0 598\r
599 get_ext(used_rom_name, ext);\r
600 PicoAHW |= PAHW_MCD;\r
ea8c405f 601 }\r
3e49ffd0 602 else {\r
e743be20 603 menu_update_msg("Invalid CD image");\r
636d5f25 604 goto out;\r
ea8c405f 605 }\r
ea8c405f 606 }\r
3e49ffd0 607 else if (media_type == PM_MARK3) {\r
608 lprintf("detected SMS ROM\n");\r
609 PicoAHW = PAHW_SMS;\r
ea8c405f 610 }\r
611\r
612 rom = pm_open(used_rom_name);\r
3e49ffd0 613 if (rom == NULL) {\r
e743be20 614 menu_update_msg("Failed to open ROM");\r
636d5f25 615 goto out;\r
ea8c405f 616 }\r
617\r
4b167c12 618 menu_romload_prepare(used_rom_name); // also CD load\r
636d5f25 619 menu_romload_started = 1;\r
ae87bffa 620 used_rom_name = NULL; // uses static_buff\r
ea8c405f 621\r
3e49ffd0 622 ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);\r
623 pm_close(rom);\r
624 if (ret != 0) {\r
e743be20 625 if (ret == 2) menu_update_msg("Out of memory");\r
626 else if (ret == 3) menu_update_msg("Read failed");\r
627 else menu_update_msg("PicoCartLoad() failed.");\r
636d5f25 628 goto out;\r
3e49ffd0 629 }\r
630\r
631 // detect wrong files\r
632 if (strncmp((char *)rom_data, "Pico", 4) == 0)\r
633 bad_rom = 1;\r
634 else if (!(PicoAHW & PAHW_SMS)) {\r
635 unsigned short *d = (unsigned short *)(rom_data + 4);\r
636 if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {\r
637 lprintf("bad reset vector\n");\r
638 bad_rom = 1;\r
639 }\r
ea8c405f 640 }\r
ea8c405f 641\r
3e49ffd0 642 if (bad_rom) {\r
e743be20 643 menu_update_msg("Bad ROM detected.");\r
636d5f25 644 goto out;\r
ea8c405f 645 }\r
646\r
647 // load config for this ROM (do this before insert to get correct region)\r
602133e1 648 if (!(PicoAHW & PAHW_MCD))\r
1ca2ea4f 649 memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r
ea8c405f 650 if (!cfg_loaded) {\r
fcdefcf6 651 ret = emu_read_config(rom_fname, 0);\r
652 if (!ret) emu_read_config(NULL, 0);\r
ea8c405f 653 }\r
654\r
ae87bffa 655 emu_make_path(static_buff, "carthw.cfg", sizeof(static_buff));\r
656 if (PicoCartInsert(rom_data, rom_size, static_buff)) {\r
e743be20 657 menu_update_msg("Failed to load ROM.");\r
636d5f25 658 goto out;\r
ea8c405f 659 }\r
660\r
ea8c405f 661 // insert CD if it was detected\r
b923ecbe 662 if (cd_state != CIT_NOT_CD) {\r
ca482e5d 663 ret = Insert_CD(rom_fname, cd_state);\r
ea8c405f 664 if (ret != 0) {\r
3e49ffd0 665 PicoCartUnload();\r
666 rom_data = NULL; // freed by unload\r
e743be20 667 menu_update_msg("Insert_CD() failed, invalid CD image?");\r
636d5f25 668 goto out;\r
ea8c405f 669 }\r
670 }\r
671\r
4b167c12 672 menu_romload_end();\r
636d5f25 673 menu_romload_started = 0;\r
4b167c12 674\r
ea8c405f 675 if (PicoPatches) {\r
676 PicoPatchPrepare();\r
677 PicoPatchApply();\r
678 }\r
679\r
680 // additional movie stuff\r
f9f40f10 681 if (movie_data)\r
682 {\r
683 if (movie_data[0x14] == '6')\r
602133e1 684 PicoOpt |= POPT_6BTN_PAD; // 6 button pad\r
685 else PicoOpt &= ~POPT_6BTN_PAD;\r
2aa27095 686 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
f9f40f10 687 if (movie_data[0xF] >= 'A') {\r
688 if (movie_data[0x16] & 0x80) {\r
ea8c405f 689 PicoRegionOverride = 8;\r
690 } else {\r
691 PicoRegionOverride = 4;\r
692 }\r
1cb1584b 693 PicoReset();\r
ea8c405f 694 // TODO: bits 6 & 5\r
695 }\r
696 movie_data[0x18+30] = 0;\r
b24e0f6c 697 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);\r
ea8c405f 698 }\r
699 else\r
700 {\r
974fdb5b 701 system_announce();\r
602133e1 702 PicoOpt &= ~POPT_DIS_VDP_FIFO;\r
ea8c405f 703 }\r
ea8c405f 704\r
bcc9eda0 705 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);\r
706 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
707 rom_loaded = 1;\r
708\r
ea8c405f 709 // load SRAM for this ROM\r
a47dd663 710 if (currentConfig.EmuOpt & EOPT_EN_SRAM)\r
711 emu_save_load_game(1, 1);\r
ea8c405f 712\r
636d5f25 713 retval = 1;\r
714out:\r
715 if (retval == 0 && rom_data)\r
3e49ffd0 716 free(rom_data);\r
636d5f25 717 if (menu_romload_started)\r
718 menu_romload_end();\r
719 free(rom_fname);\r
720 return retval;\r
ea8c405f 721}\r
722\r
35e3031a 723int emu_swap_cd(const char *fname)\r
724{\r
725 cd_img_type cd_type;\r
726 int ret = -1;\r
727\r
728 cd_type = emu_cd_check(NULL, fname);\r
729 if (cd_type != CIT_NOT_CD)\r
730 ret = Insert_CD(fname, cd_type);\r
731 if (ret != 0) {\r
e743be20 732 menu_update_msg("Load failed, invalid CD image?");\r
35e3031a 733 return 0;\r
734 }\r
735\r
736 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);\r
737 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
738 return 1;\r
739}\r
740\r
ae87bffa 741// <base dir><end>\r
27701801 742void emu_make_path(char *buff, const char *end, int size)\r
08fe8094 743{\r
27701801 744 int pos, end_len;\r
745\r
746 end_len = strlen(end);\r
747 pos = plat_get_root_dir(buff, size);\r
748 strncpy(buff + pos, end, size - pos);\r
749 buff[size - 1] = 0;\r
750 if (pos + end_len > size - 1)\r
751 lprintf("Warning: path truncated: %s\n", buff);\r
752}\r
753\r
754static void make_config_cfg(char *cfg_buff_512)\r
755{\r
756 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);\r
08fe8094 757 if (config_slot != 0)\r
758 {\r
27701801 759 char *p = strrchr(cfg_buff_512, '.');\r
760 if (p == NULL)\r
761 p = cfg_buff_512 + strlen(cfg_buff_512);\r
08fe8094 762 sprintf(p, ".%i.cfg", config_slot);\r
763 }\r
27701801 764 cfg_buff_512[511] = 0;\r
08fe8094 765}\r
766\r
697746df 767void emu_prep_defconfig(void)\r
768{\r
769 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
fcdefcf6 770 defaultConfig.EmuOpt = 0x9d | EOPT_RAM_TIMINGS|EOPT_EN_CD_LEDS;\r
697746df 771 defaultConfig.s_PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |\r
772 POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES |\r
773 POPT_EN_32X|POPT_EN_PWM;\r
774 defaultConfig.s_PsndRate = 44100;\r
775 defaultConfig.s_PicoRegion = 0; // auto\r
776 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
777 defaultConfig.s_PicoCDBuffers = 0;\r
fcdefcf6 778 defaultConfig.confirm_save = EOPT_CONFIRM_SAVE;\r
697746df 779 defaultConfig.Frameskip = -1; // auto\r
780 defaultConfig.volume = 50;\r
781 defaultConfig.gamma = 100;\r
782 defaultConfig.scaling = 0;\r
783 defaultConfig.turbo_rate = 15;\r
784\r
785 // platform specific overrides\r
786 pemu_prep_defconfig();\r
787}\r
788\r
d90f5bd7 789void emu_set_defconfig(void)\r
ca482e5d 790{\r
a47dd663 791 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
ca482e5d 792 PicoOpt = currentConfig.s_PicoOpt;\r
793 PsndRate = currentConfig.s_PsndRate;\r
794 PicoRegionOverride = currentConfig.s_PicoRegion;\r
795 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
796 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
fcdefcf6 797 p32x_msh2_multiplier = MSH2_MULTI_DEFAULT;\r
798 p32x_ssh2_multiplier = SSH2_MULTI_DEFAULT;\r
ca482e5d 799}\r
800\r
fcdefcf6 801int emu_read_config(const char *rom_fname, int no_defaults)\r
ea8c405f 802{\r
58c86d00 803 char cfg[512];\r
58c86d00 804 int ret;\r
ea8c405f 805\r
490eb480 806 if (!no_defaults)\r
807 emu_set_defconfig();\r
808\r
fcdefcf6 809 if (rom_fname == NULL)\r
ea8c405f 810 {\r
fcdefcf6 811 // global config\r
08fe8094 812 make_config_cfg(cfg);\r
58c86d00 813 ret = config_readsect(cfg, NULL);\r
ea8c405f 814 }\r
58c86d00 815 else\r
816 {\r
fcdefcf6 817 char *sect = emu_make_rom_id(rom_fname);\r
ea8c405f 818\r
58c86d00 819 if (config_slot != 0)\r
820 sprintf(cfg, "game.%i.cfg", config_slot);\r
821 else strcpy(cfg, "game.cfg");\r
1ca2ea4f 822\r
823 ret = -1;\r
08fe8094 824 if (config_havesect(cfg, sect))\r
825 {\r
826 // read user's config\r
7b802576 827 int vol = currentConfig.volume;\r
d90f5bd7 828 emu_set_defconfig();\r
1ca2ea4f 829 ret = config_readsect(cfg, sect);\r
7b802576 830 currentConfig.volume = vol; // make vol global (bah)\r
1ca2ea4f 831 }\r
a39b7867 832 else\r
08fe8094 833 {\r
834 // read global config, and apply game_def.cfg on top\r
835 make_config_cfg(cfg);\r
836 config_readsect(cfg, NULL);\r
d8afe7b8 837 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));\r
838 ret = config_readsect(cfg, sect);\r
08fe8094 839 }\r
58c86d00 840\r
ca482e5d 841 if (ret == 0)\r
58c86d00 842 {\r
1ca2ea4f 843 lprintf("loaded cfg from sect \"%s\"\n", sect);\r
58c86d00 844 }\r
ea8c405f 845 }\r
58c86d00 846\r
697746df 847 pemu_validate_config();\r
ee2a3bdf 848\r
ea8c405f 849 // some sanity checks\r
2445b7cb 850#ifdef PSP\r
ee2a3bdf 851 /* TODO: mv to plat_validate_config() */\r
852 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
2445b7cb 853 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
6fc57144 854 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
2445b7cb 855#endif\r
ee2a3bdf 856 if (currentConfig.volume < 0 || currentConfig.volume > 99)\r
857 currentConfig.volume = 50;\r
858\r
859 if (ret == 0)\r
860 config_slot_current = config_slot;\r
991473ad 861\r
58c86d00 862 return (ret == 0);\r
ea8c405f 863}\r
864\r
865\r
a47dd663 866int emu_write_config(int is_game)\r
ea8c405f 867{\r
58c86d00 868 char cfg[512], *game_sect = NULL;\r
869 int ret, write_lrom = 0;\r
ea8c405f 870\r
58c86d00 871 if (!is_game)\r
ea8c405f 872 {\r
ca482e5d 873 make_config_cfg(cfg);\r
58c86d00 874 write_lrom = 1;\r
ea8c405f 875 } else {\r
876 if (config_slot != 0)\r
58c86d00 877 sprintf(cfg, "game.%i.cfg", config_slot);\r
878 else strcpy(cfg, "game.cfg");\r
fcdefcf6 879 game_sect = emu_make_rom_id(rom_fname_loaded);\r
a47dd663 880 lprintf("emu_write_config: sect \"%s\"\n", game_sect);\r
ea8c405f 881 }\r
882\r
a47dd663 883 lprintf("emu_write_config: %s ", cfg);\r
58c86d00 884 ret = config_writesect(cfg, game_sect);\r
1ca2ea4f 885 if (write_lrom) config_writelrom(cfg);\r
ea8c405f 886#ifndef NO_SYNC\r
58c86d00 887 sync();\r
ea8c405f 888#endif\r
58c86d00 889 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
ea8c405f 890\r
58c86d00 891 if (ret == 0) config_slot_current = config_slot;\r
892 return ret == 0;\r
ea8c405f 893}\r
894\r
895\r
e2de9939 896/* always using built-in font */\r
897\r
cc41eb4f 898#define mk_text_out(name, type, val, topleft, step_x, step_y) \\r
e2de9939 899void name(int x, int y, const char *text) \\r
900{ \\r
901 int i, l, len = strlen(text); \\r
cc41eb4f 902 type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r
e2de9939 903 \\r
cc41eb4f 904 for (i = 0; i < len; i++, screen += 8 * step_x) \\r
e2de9939 905 { \\r
906 for (l = 0; l < 8; l++) \\r
907 { \\r
908 unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r
cc41eb4f 909 type *s = screen + l * step_y; \\r
910 if (fd&0x80) s[step_x * 0] = val; \\r
911 if (fd&0x40) s[step_x * 1] = val; \\r
912 if (fd&0x20) s[step_x * 2] = val; \\r
913 if (fd&0x10) s[step_x * 3] = val; \\r
914 if (fd&0x08) s[step_x * 4] = val; \\r
915 if (fd&0x04) s[step_x * 5] = val; \\r
916 if (fd&0x02) s[step_x * 6] = val; \\r
917 if (fd&0x01) s[step_x * 7] = val; \\r
e2de9939 918 } \\r
919 } \\r
ea8c405f 920}\r
921\r
cc41eb4f 922mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r
923mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r
924mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r
925 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
926mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r
927 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
ea8c405f 928\r
e2de9939 929#undef mk_text_out\r
ea8c405f 930\r
931\r
d34a42f9 932void update_movie(void)\r
ea8c405f 933{\r
934 int offs = Pico.m.frame_count*3 + 0x40;\r
935 if (offs+3 > movie_size) {\r
936 free(movie_data);\r
937 movie_data = 0;\r
b24e0f6c 938 emu_status_msg("END OF MOVIE.");\r
ea8c405f 939 lprintf("END OF MOVIE.\n");\r
ea8c405f 940 } else {\r
941 // MXYZ SACB RLDU\r
942 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
f8af9634 943 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C\r
944 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A\r
945 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B\r
ea8c405f 946 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
f8af9634 947 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C\r
948 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A\r
949 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B\r
ea8c405f 950 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
951 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
952 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
953 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
954 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
955 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
956 }\r
957}\r
958\r
ea8c405f 959static int try_ropen_file(const char *fname)\r
960{\r
961 FILE *f;\r
962\r
963 f = fopen(fname, "rb");\r
964 if (f) {\r
965 fclose(f);\r
966 return 1;\r
967 }\r
968 return 0;\r
969}\r
970\r
a47dd663 971char *emu_get_save_fname(int load, int is_sram, int slot)\r
ea8c405f 972{\r
ae87bffa 973 char *saveFname = static_buff;\r
ea8c405f 974 char ext[16];\r
975\r
976 if (is_sram)\r
977 {\r
6bc00695 978 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r
fcdefcf6 979 romfname_ext(saveFname, sizeof(static_buff),\r
980 (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);\r
6bc00695 981 if (!load)\r
982 return saveFname;\r
983\r
984 if (try_ropen_file(saveFname))\r
985 return saveFname;\r
986\r
fcdefcf6 987 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
6bc00695 988 if (try_ropen_file(saveFname))\r
989 return saveFname;\r
ea8c405f 990 }\r
991 else\r
992 {\r
6bc00695 993 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";\r
994 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";\r
ea8c405f 995 ext[0] = 0;\r
6bc00695 996 if (slot > 0 && slot < 10)\r
997 sprintf(ext, ".%i", slot);\r
998 strcat(ext, ext_main);\r
999\r
1000 if (!load) {\r
fcdefcf6 1001 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
6bc00695 1002 return saveFname;\r
1003 }\r
1004 else {\r
fcdefcf6 1005 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
6bc00695 1006 if (try_ropen_file(saveFname))\r
1007 return saveFname;\r
ea8c405f 1008\r
fcdefcf6 1009 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
6bc00695 1010 if (try_ropen_file(saveFname))\r
1011 return saveFname;\r
1012\r
1013 // try the other ext\r
1014 ext[0] = 0;\r
1015 if (slot > 0 && slot < 10)\r
1016 sprintf(ext, ".%i", slot);\r
1017 strcat(ext, ext_othr);\r
1018\r
fcdefcf6 1019 romfname_ext(saveFname, sizeof(static_buff), "mds"PATH_SEP, ext);\r
6bc00695 1020 if (try_ropen_file(saveFname))\r
1021 return saveFname;\r
ea8c405f 1022 }\r
1023 }\r
1024\r
6bc00695 1025 return NULL;\r
ea8c405f 1026}\r
1027\r
cca8800d 1028int emu_check_save_file(int slot, int *time)\r
ea8c405f 1029{\r
a47dd663 1030 return emu_get_save_fname(1, 0, slot) ? 1 : 0;\r
ea8c405f 1031}\r
1032\r
a47dd663 1033int emu_save_load_game(int load, int sram)\r
ea8c405f 1034{\r
1035 int ret = 0;\r
1036 char *saveFname;\r
1037\r
1038 // make save filename\r
a47dd663 1039 saveFname = emu_get_save_fname(load, sram, state_slot);\r
ea8c405f 1040 if (saveFname == NULL) {\r
d34a42f9 1041 if (!sram)\r
b24e0f6c 1042 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r
ea8c405f 1043 return -1;\r
1044 }\r
1045\r
1046 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1047\r
da42200b 1048 if (sram)\r
1049 {\r
ea8c405f 1050 FILE *sramFile;\r
1051 int sram_size;\r
1052 unsigned char *sram_data;\r
1053 int truncate = 1;\r
602133e1 1054 if (PicoAHW & PAHW_MCD)\r
1055 {\r
45f2f245 1056 if (PicoOpt & POPT_EN_MCD_RAMCART) {\r
ea8c405f 1057 sram_size = 0x12000;\r
1058 sram_data = SRam.data;\r
1059 if (sram_data)\r
1060 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
1061 } else {\r
1062 sram_size = 0x2000;\r
1063 sram_data = Pico_mcd->bram;\r
1064 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
1065 }\r
1066 } else {\r
45f2f245 1067 sram_size = SRam.size;\r
ea8c405f 1068 sram_data = SRam.data;\r
1069 }\r
b8a1c09a 1070 if (sram_data == NULL)\r
1071 return 0; // SRam forcefully disabled for this game\r
ea8c405f 1072\r
602133e1 1073 if (load)\r
1074 {\r
ea8c405f 1075 sramFile = fopen(saveFname, "rb");\r
b8a1c09a 1076 if (!sramFile)\r
1077 return -1;\r
1078 ret = fread(sram_data, 1, sram_size, sramFile);\r
1079 ret = ret > 0 ? 0 : -1;\r
ea8c405f 1080 fclose(sramFile);\r
602133e1 1081 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r
ea8c405f 1082 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
1083 } else {\r
1084 // sram save needs some special processing\r
1085 // see if we have anything to save\r
1086 for (; sram_size > 0; sram_size--)\r
1087 if (sram_data[sram_size-1]) break;\r
1088\r
1089 if (sram_size) {\r
1090 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
1091 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
1092 if (!sramFile) return -1;\r
1093 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
1094 ret = (ret != sram_size) ? -1 : 0;\r
1095 fclose(sramFile);\r
1096#ifndef NO_SYNC\r
1097 sync();\r
1098#endif\r
1099 }\r
1100 }\r
1101 return ret;\r
1102 }\r
1103 else\r
1104 {\r
bcc9eda0 1105 ret = PicoState(saveFname, !load);\r
1106 if (!ret) {\r
ea8c405f 1107#ifndef NO_SYNC\r
bcc9eda0 1108 if (!load) sync();\r
ea8c405f 1109#endif\r
54646a39 1110 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");\r
bcc9eda0 1111 } else {\r
b24e0f6c 1112 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r
ea8c405f 1113 ret = -1;\r
1114 }\r
1115\r
ea8c405f 1116 return ret;\r
1117 }\r
1118}\r
bdec53c9 1119\r
a47dd663 1120void emu_set_fastforward(int set_on)\r
c060a9ab 1121{\r
1122 static void *set_PsndOut = NULL;\r
1123 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
1124\r
1125 if (set_on && !is_on) {\r
1126 set_PsndOut = PsndOut;\r
1127 set_Frameskip = currentConfig.Frameskip;\r
1128 set_EmuOpt = currentConfig.EmuOpt;\r
1129 PsndOut = NULL;\r
1130 currentConfig.Frameskip = 8;\r
1131 currentConfig.EmuOpt &= ~4;\r
1132 currentConfig.EmuOpt |= 0x40000;\r
1133 is_on = 1;\r
b24e0f6c 1134 emu_status_msg("FAST FORWARD");\r
c060a9ab 1135 }\r
1136 else if (!set_on && is_on) {\r
1137 PsndOut = set_PsndOut;\r
1138 currentConfig.Frameskip = set_Frameskip;\r
1139 currentConfig.EmuOpt = set_EmuOpt;\r
1140 PsndRerate(1);\r
1141 is_on = 0;\r
1142 }\r
1143}\r
1144\r
d687ef50 1145static void emu_tray_open(void)\r
c060a9ab 1146{\r
d687ef50 1147 engineState = PGS_TrayMenu;\r
1148}\r
1149\r
1150static void emu_tray_close(void)\r
1151{\r
1152 emu_status_msg("CD tray closed.");\r
f2cf8472 1153}\r
1154\r
974fdb5b 1155void emu_32x_startup(void)\r
1156{\r
c7eb229a 1157 plat_video_toggle_renderer(0, 0); // HACK\r
974fdb5b 1158 system_announce();\r
c7eb229a 1159\r
1160 // force mode change event\r
1161 rendstatus_old = -1;\r
974fdb5b 1162}\r
1163\r
f2cf8472 1164void emu_reset_game(void)\r
1165{\r
1166 PicoReset();\r
1167 reset_timing = 1;\r
1168}\r
1169\r
1170void run_events_pico(unsigned int events)\r
1171{\r
1172 int lim_x;\r
1173\r
1174 if (events & PEV_PICO_SWINP) {\r
c060a9ab 1175 pico_inp_mode++;\r
d34a42f9 1176 if (pico_inp_mode > 2)\r
1177 pico_inp_mode = 0;\r
c060a9ab 1178 switch (pico_inp_mode) {\r
b24e0f6c 1179 case 2: emu_status_msg("Input: Pen on Pad"); break;\r
1180 case 1: emu_status_msg("Input: Pen on Storyware"); break;\r
1181 case 0: emu_status_msg("Input: Joystick");\r
c060a9ab 1182 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
1183 break;\r
1184 }\r
c060a9ab 1185 }\r
f2cf8472 1186 if (events & PEV_PICO_PPREV) {\r
c060a9ab 1187 PicoPicohw.page--;\r
d34a42f9 1188 if (PicoPicohw.page < 0)\r
1189 PicoPicohw.page = 0;\r
b24e0f6c 1190 emu_status_msg("Page %i", PicoPicohw.page);\r
c060a9ab 1191 }\r
f2cf8472 1192 if (events & PEV_PICO_PNEXT) {\r
c060a9ab 1193 PicoPicohw.page++;\r
d34a42f9 1194 if (PicoPicohw.page > 6)\r
1195 PicoPicohw.page = 6;\r
b24e0f6c 1196 emu_status_msg("Page %i", PicoPicohw.page);\r
c060a9ab 1197 }\r
f2cf8472 1198\r
1199 if (pico_inp_mode == 0)\r
1200 return;\r
1201\r
1202 /* handle other input modes */\r
1203 if (PicoPad[0] & 1) pico_pen_y--;\r
1204 if (PicoPad[0] & 2) pico_pen_y++;\r
1205 if (PicoPad[0] & 4) pico_pen_x--;\r
1206 if (PicoPad[0] & 8) pico_pen_x++;\r
1207 PicoPad[0] &= ~0x0f; // release UDLR\r
1208\r
1209 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
1210 if (pico_pen_y < 8)\r
1211 pico_pen_y = 8;\r
1212 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r
1213 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r
1214 if (pico_pen_x < 0)\r
1215 pico_pen_x = 0;\r
1216 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r
1217 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r
1218\r
1219 PicoPicohw.pen_pos[0] = pico_pen_x;\r
1220 if (!(Pico.video.reg[12] & 1))\r
1221 PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r
1222 PicoPicohw.pen_pos[0] += 0x3c;\r
1223 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
c060a9ab 1224}\r
1225\r
d34a42f9 1226static void do_turbo(int *pad, int acts)\r
f0f0d2df 1227{\r
1228 static int turbo_pad = 0;\r
1229 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1230 int inc = currentConfig.turbo_rate * 2;\r
1231\r
1232 if (acts & 0x1000) {\r
1233 turbo_cnt[0] += inc;\r
1234 if (turbo_cnt[0] >= 60)\r
1235 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1236 }\r
1237 if (acts & 0x2000) {\r
1238 turbo_cnt[1] += inc;\r
1239 if (turbo_cnt[1] >= 60)\r
1240 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1241 }\r
1242 if (acts & 0x4000) {\r
1243 turbo_cnt[2] += inc;\r
1244 if (turbo_cnt[2] >= 60)\r
1245 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1246 }\r
1247 *pad |= turbo_pad & (acts >> 8);\r
1248}\r
c060a9ab 1249\r
f2cf8472 1250static void run_events_ui(unsigned int which)\r
d34a42f9 1251{\r
1252 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r
1253 {\r
1254 int do_it = 1;\r
cca8800d 1255 if ( emu_check_save_file(state_slot, NULL) &&\r
fcdefcf6 1256 (((which & PEV_STATE_LOAD) && (currentConfig.confirm_save & EOPT_CONFIRM_LOAD)) ||\r
1257 ((which & PEV_STATE_SAVE) && (currentConfig.confirm_save & EOPT_CONFIRM_SAVE))) )\r
d34a42f9 1258 {\r
1259 const char *nm;\r
1260 char tmp[64];\r
1261 int keys, len;\r
1262\r
1263 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");\r
1264 len = strlen(tmp);\r
1265 nm = in_get_key_name(-1, -PBTN_MA3);\r
1266 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
1267 len = strlen(tmp);\r
1268 nm = in_get_key_name(-1, -PBTN_MBACK);\r
1269 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
1270\r
1271 plat_status_msg_busy_first(tmp);\r
1272\r
45285368 1273 in_set_config_int(0, IN_CFG_BLOCKING, 1);\r
13450307 1274 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))\r
d34a42f9 1275 ;\r
13450307 1276 while ( !((keys = in_menu_wait_any(NULL, 50)) & (PBTN_MA3|PBTN_MBACK)) )\r
d34a42f9 1277 ;\r
1278 if (keys & PBTN_MBACK)\r
1279 do_it = 0;\r
13450307 1280 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))\r
d34a42f9 1281 ;\r
45285368 1282 in_set_config_int(0, IN_CFG_BLOCKING, 0);\r
d34a42f9 1283 }\r
1284 if (do_it) {\r
54646a39 1285 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");\r
d34a42f9 1286 PicoStateProgressCB = plat_status_msg_busy_next;\r
a47dd663 1287 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r
d34a42f9 1288 PicoStateProgressCB = NULL;\r
1289 }\r
1290 }\r
5a681086 1291 if (which & PEV_SWITCH_RND)\r
d34a42f9 1292 {\r
5a681086 1293 plat_video_toggle_renderer(1, 0);\r
d34a42f9 1294 }\r
1295 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r
1296 {\r
1297 if (which & PEV_SSLOT_PREV) {\r
1298 state_slot -= 1;\r
1299 if (state_slot < 0)\r
1300 state_slot = 9;\r
1301 } else {\r
1302 state_slot += 1;\r
1303 if (state_slot > 9)\r
1304 state_slot = 0;\r
1305 }\r
1306\r
b24e0f6c 1307 emu_status_msg("SAVE SLOT %i [%s]", state_slot,\r
cca8800d 1308 emu_check_save_file(state_slot, NULL) ? "USED" : "FREE");\r
d34a42f9 1309 }\r
1310 if (which & PEV_MENU)\r
1311 engineState = PGS_Menu;\r
1312}\r
1313\r
1314void emu_update_input(void)\r
1315{\r
093b8a42 1316 static int prev_events = 0;\r
1317 int actions[IN_BINDTYPE_COUNT] = { 0, };\r
1318 int pl_actions[2];\r
1319 int events;\r
d34a42f9 1320\r
093b8a42 1321 in_update(actions);\r
d34a42f9 1322\r
093b8a42 1323 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r
1324 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r
d34a42f9 1325\r
093b8a42 1326 PicoPad[0] = pl_actions[0] & 0xfff;\r
1327 PicoPad[1] = pl_actions[1] & 0xfff;\r
d34a42f9 1328\r
093b8a42 1329 if (pl_actions[0] & 0x7000)\r
1330 do_turbo(&PicoPad[0], pl_actions[0]);\r
1331 if (pl_actions[1] & 0x7000)\r
1332 do_turbo(&PicoPad[1], pl_actions[1]);\r
1333\r
1334 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
d34a42f9 1335\r
1336 // volume is treated in special way and triggered every frame\r
1337 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r
1338 plat_update_volume(1, events & PEV_VOL_UP);\r
1339\r
093b8a42 1340 if ((events ^ prev_events) & PEV_FF) {\r
a47dd663 1341 emu_set_fastforward(events & PEV_FF);\r
d34a42f9 1342 plat_update_volume(0, 0);\r
f2cf8472 1343 reset_timing = 1;\r
d34a42f9 1344 }\r
1345\r
093b8a42 1346 events &= ~prev_events;\r
d34a42f9 1347\r
f2cf8472 1348 if (PicoAHW == PAHW_PICO)\r
1349 run_events_pico(events);\r
d34a42f9 1350 if (events)\r
f2cf8472 1351 run_events_ui(events);\r
d34a42f9 1352 if (movie_data)\r
1353 update_movie();\r
1354\r
093b8a42 1355 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
d34a42f9 1356}\r
1357\r
f2cf8472 1358static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r
1359{\r
1360 strcpy(path_with_reserve + pos, name);\r
1361 if (plat_is_dir(path_with_reserve))\r
1362 return;\r
1363 if (mkdir(path_with_reserve, 0777) < 0)\r
1364 lprintf("failed to create: %s\n", path_with_reserve);\r
1365}\r
1366\r
a4edca53 1367void emu_cmn_forced_frame(int no_scale, int do_emu)\r
1368{\r
1369 int po_old = PicoOpt;\r
1370\r
1371 memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
1372\r
8340e7c9 1373 PicoOpt &= ~POPT_ALT_RENDERER;\r
a4edca53 1374 PicoOpt |= POPT_ACC_SPRITES;\r
1375 if (!no_scale)\r
1376 PicoOpt |= POPT_EN_SOFTSCALE;\r
1377\r
1378 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
1379 Pico.m.dirtyPal = 1;\r
1380 if (do_emu)\r
1381 PicoFrame();\r
1382 else\r
1383 PicoFrameDrawOnly();\r
1384\r
1385 PicoOpt = po_old;\r
1386}\r
1387\r
f2cf8472 1388void emu_init(void)\r
1389{\r
27701801 1390 char path[512];\r
f2cf8472 1391 int pos;\r
1392\r
83ff19ec 1393#if 0\r
1394 // FIXME: handle through menu, etc\r
1395 FILE *f;\r
1396 f = fopen("32X_M_BIOS.BIN", "rb");\r
1397 p32x_bios_m = malloc(2048);\r
1398 fread(p32x_bios_m, 1, 2048, f);\r
1399 fclose(f);\r
1400 f = fopen("32X_S_BIOS.BIN", "rb");\r
1401 p32x_bios_s = malloc(1024);\r
1402 fread(p32x_bios_s, 1, 1024, f);\r
1403 fclose(f);\r
1404#endif\r
1405\r
f2cf8472 1406 /* make dirs for saves */\r
27701801 1407 pos = plat_get_root_dir(path, sizeof(path) - 4);\r
1408 mkdir_path(path, pos, "mds");\r
1409 mkdir_path(path, pos, "srm");\r
1410 mkdir_path(path, pos, "brm");\r
1411\r
f6c49d38 1412 pprof_init();\r
1413\r
27701801 1414 make_config_cfg(path);\r
1415 config_readlrom(path);\r
f2cf8472 1416\r
1417 PicoInit();\r
1418 PicoMessage = plat_status_msg_busy_next;\r
d687ef50 1419 PicoMCDopenTray = emu_tray_open;\r
1420 PicoMCDcloseTray = emu_tray_close;\r
f2cf8472 1421}\r
1422\r
1423void emu_finish(void)\r
1424{\r
1425 // save SRAM\r
a47dd663 1426 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1427 emu_save_load_game(0, 1);\r
f2cf8472 1428 SRam.changed = 0;\r
1429 }\r
1430\r
27701801 1431 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r
1432 char cfg[512];\r
1433 make_config_cfg(cfg);\r
1434 config_writelrom(cfg);\r
1435#ifndef NO_SYNC\r
1436 sync();\r
1437#endif\r
1438 }\r
f2cf8472 1439\r
f6c49d38 1440 pprof_finish();\r
1441\r
f2cf8472 1442 PicoExit();\r
1443}\r
1444\r
b24e0f6c 1445static void skip_frame(int do_audio)\r
1446{\r
1447 PicoSkipFrame = do_audio ? 1 : 2;\r
1448 PicoFrame();\r
1449 PicoSkipFrame = 0;\r
1450}\r
1451\r
1452/* our tick here is 1 us right now */\r
1453#define ms_to_ticks(x) (unsigned int)(x * 1000)\r
1454#define get_ticks() plat_get_ticks_us()\r
1455\r
1456void emu_loop(void)\r
1457{\r
1458 int pframes_done; /* "period" frames, used for sync */\r
1459 int frames_done, frames_shown; /* actual frames for fps counter */\r
19954be1 1460 int target_fps, target_frametime;\r
b24e0f6c 1461 unsigned int timestamp_base = 0, timestamp_fps;\r
1462 char *notice_msg = NULL;\r
1463 char fpsbuff[24];\r
1464 int i;\r
1465\r
1466 fpsbuff[0] = 0;\r
1467\r
1468 /* make sure we are in correct mode */\r
b24e0f6c 1469 Pico.m.dirtyPal = 1;\r
19954be1 1470 rendstatus_old = -1;\r
b24e0f6c 1471\r
46bcb899 1472 PicoLoopPrepare();\r
1473\r
1474 // prepare CD buffer\r
1475 if (PicoAHW & PAHW_MCD)\r
1476 PicoCDBufferInit();\r
1477\r
636d5f25 1478 plat_video_loop_prepare();\r
46bcb899 1479 pemu_loop_prep();\r
1480\r
b24e0f6c 1481 /* number of ticks per frame */\r
1482 if (Pico.m.pal) {\r
1483 target_fps = 50;\r
1484 target_frametime = ms_to_ticks(1000) / 50;\r
1485 } else {\r
1486 target_fps = 60;\r
1487 target_frametime = ms_to_ticks(1000) / 60 + 1;\r
1488 }\r
1489\r
b24e0f6c 1490 timestamp_fps = get_ticks();\r
1491 reset_timing = 1;\r
1492\r
1493 frames_done = frames_shown = pframes_done = 0;\r
1494\r
7b436906 1495 plat_video_wait_vsync();\r
1496\r
b24e0f6c 1497 /* loop with resync every 1 sec. */\r
1498 while (engineState == PGS_Running)\r
1499 {\r
1500 unsigned int timestamp;\r
1501 int diff, diff_lim;\r
b24e0f6c 1502\r
f6c49d38 1503 pprof_start(main);\r
1504\r
b24e0f6c 1505 timestamp = get_ticks();\r
1506 if (reset_timing) {\r
1507 reset_timing = 0;\r
1508 timestamp_base = timestamp;\r
1509 pframes_done = 0;\r
1510 }\r
1511\r
1512 // show notice_msg message?\r
1513 if (notice_msg_time != 0)\r
1514 {\r
1515 static int noticeMsgSum;\r
54646a39 1516 if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {\r
b24e0f6c 1517 notice_msg_time = 0;\r
1518 plat_status_msg_clear();\r
1519 notice_msg = NULL;\r
1520 } else {\r
1521 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];\r
1522 if (sum != noticeMsgSum) {\r
1523 plat_status_msg_clear();\r
1524 noticeMsgSum = sum;\r
1525 }\r
1526 notice_msg = noticeMsg;\r
1527 }\r
1528 }\r
1529\r
b24e0f6c 1530 // second changed?\r
1531 if (timestamp - timestamp_fps >= ms_to_ticks(1000))\r
1532 {\r
1533#ifdef BENCHMARK\r
1534 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1535 if (++bench == 10) {\r
1536 bench = 0;\r
1537 bench_fps_s = bench_fps;\r
1538 bf[bfp++ & 3] = bench_fps;\r
1539 bench_fps = 0;\r
1540 }\r
1541 bench_fps += frames_shown;\r
1542 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
07e5dbab 1543 printf("%s\n", fpsbuff);\r
b24e0f6c 1544#else\r
1545 if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {\r
1546 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1547 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
1548 }\r
1549#endif\r
1550 frames_shown = frames_done = 0;\r
1551 timestamp_fps += ms_to_ticks(1000);\r
1552 }\r
1553#ifdef PFRAMES\r
1554 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
1555#endif\r
1556\r
1557 if (timestamp - timestamp_base >= ms_to_ticks(1000))\r
1558 {\r
21ecaf23 1559 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)\r
b24e0f6c 1560 pframes_done = 0;\r
5a681086 1561 else\r
b24e0f6c 1562 pframes_done -= target_fps;\r
5a681086 1563 if (pframes_done < -2) {\r
1564 /* don't drag more than 2 frames behind */\r
1565 pframes_done = -2;\r
1566 timestamp_base = timestamp - 2 * target_frametime;\r
21ecaf23 1567 }\r
5a681086 1568 else\r
1569 timestamp_base += ms_to_ticks(1000);\r
b24e0f6c 1570 }\r
1571\r
1572 diff = timestamp - timestamp_base;\r
1573 diff_lim = (pframes_done + 1) * target_frametime;\r
1574\r
1575 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
1576 {\r
1577 for (i = 0; i < currentConfig.Frameskip; i++) {\r
1578 emu_update_input();\r
1579 skip_frame(1);\r
1580 pframes_done++; frames_done++;\r
1581 diff_lim += target_frametime;\r
1582\r
ae87bffa 1583 if (!(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT))) {\r
b24e0f6c 1584 timestamp = get_ticks();\r
1585 diff = timestamp - timestamp_base;\r
0d83abe2 1586 if (!reset_timing && diff < diff_lim) // we are too fast\r
b24e0f6c 1587 plat_wait_till_us(timestamp_base + diff_lim);\r
1588 }\r
1589 }\r
1590 }\r
1591 else if (diff > diff_lim)\r
1592 {\r
1593 /* no time left for this frame - skip */\r
5a681086 1594 /* limit auto frameskip to 8 */\r
1595 if (frames_done / 8 <= frames_shown) {\r
1596 emu_update_input();\r
1597 skip_frame(diff < diff_lim + target_frametime * 16);\r
1598 pframes_done++; frames_done++;\r
b24e0f6c 1599 continue;\r
1600 }\r
b24e0f6c 1601 }\r
1602\r
1603 emu_update_input();\r
1604 PicoFrame();\r
d08e7326 1605 pemu_finalize_frame(fpsbuff, notice_msg);\r
1606\r
f6c49d38 1607 // plat_video_flip();\r
b24e0f6c 1608\r
1609 /* frame limiter */\r
ae87bffa 1610 if (!reset_timing && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT)))\r
b24e0f6c 1611 {\r
1612 timestamp = get_ticks();\r
1613 diff = timestamp - timestamp_base;\r
1614\r
1615 // sleep or vsync if we are still too fast\r
1616 if (diff < diff_lim)\r
1617 {\r
1618 // we are too fast\r
7b436906 1619 plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);\r
1620 if (currentConfig.EmuOpt & EOPT_VSYNC)\r
b24e0f6c 1621 plat_video_wait_vsync();\r
b24e0f6c 1622 }\r
1623 }\r
1624\r
d08e7326 1625 // XXX: for some plats it might be better to flip before vsync\r
1626 // (due to shadow registers in display hw)\r
1627 plat_video_flip();\r
b24e0f6c 1628\r
1629 pframes_done++; frames_done++; frames_shown++;\r
f6c49d38 1630\r
1631 pprof_end(main);\r
b24e0f6c 1632 }\r
1633\r
1634 emu_set_fastforward(0);\r
1635\r
b24e0f6c 1636 // save SRAM\r
1637 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1638 plat_status_msg_busy_first("Writing SRAM/BRAM...");\r
1639 emu_save_load_game(0, 1);\r
1640 SRam.changed = 0;\r
1641 }\r
1642\r
b24e0f6c 1643 pemu_loop_end();\r
730259b7 1644\r
1645 // pemu_loop_end() might want to do 1 frame for bg image,\r
1646 // so free CD buffer here\r
1647 if (PicoAHW & PAHW_MCD)\r
1648 PicoCDBufferFree();\r
b24e0f6c 1649}\r
1650\r
fast MegaDrive/MegaCD/32X emulator