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