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Finish migrating to new mem handling. Make carthw db external.
[libpicofe.git] / 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/* TODO: len checking */\r
45char rom_fname_reload[512] = { 0, };\r
46char rom_fname_loaded[512] = { 0, };\r
47int rom_loaded = 0;\r
48int reset_timing = 0;\r
49static unsigned int notice_msg_time; /* when started showing */\r
50static char noticeMsg[40];\r
51\r
52unsigned char *movie_data = NULL;\r
53static int movie_size = 0;\r
54\r
55\r
56/* don't use tolower() for easy old glibc binary compatibility */\r
57static void strlwr_(char *string)\r
58{\r
59 char *p;\r
60 for (p = string; *p; p++)\r
61 if ('A' <= *p && *p <= 'Z')\r
62 *p += 'a' - 'A';\r
63}\r
64\r
65static int try_rfn_cut(char *fname)\r
66{\r
67 FILE *tmp;\r
68 char *p;\r
69\r
70 p = fname + strlen(fname) - 1;\r
71 for (; p > fname; p--)\r
72 if (*p == '.') break;\r
73 *p = 0;\r
74\r
75 if((tmp = fopen(fname, "rb"))) {\r
76 fclose(tmp);\r
77 return 1;\r
78 }\r
79 return 0;\r
80}\r
81\r
82static void get_ext(const char *file, char *ext)\r
83{\r
84 const char *p;\r
85\r
86 p = file + strlen(file) - 4;\r
87 if (p < file) p = file;\r
88 strncpy(ext, p, 4);\r
89 ext[4] = 0;\r
90 strlwr_(ext);\r
91}\r
92\r
93void emu_status_msg(const char *format, ...)\r
94{\r
95 va_list vl;\r
96 int ret;\r
97\r
98 va_start(vl, format);\r
99 ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);\r
100 va_end(vl);\r
101\r
102 /* be sure old text gets overwritten */\r
103 for (; ret < 28; ret++)\r
104 noticeMsg[ret] = ' ';\r
105 noticeMsg[ret] = 0;\r
106\r
107 notice_msg_time = plat_get_ticks_ms();\r
108}\r
109\r
110static const char * const biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r
111static const char * const biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r
112static const char * const biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
113\r
114static int find_bios(int region, char **bios_file)\r
115{\r
116 static char bios_path[1024];\r
117 int i, count;\r
118 const char * const *files;\r
119 FILE *f = NULL;\r
120\r
121 if (region == 4) { // US\r
122 files = biosfiles_us;\r
123 count = sizeof(biosfiles_us) / sizeof(char *);\r
124 } else if (region == 8) { // EU\r
125 files = biosfiles_eu;\r
126 count = sizeof(biosfiles_eu) / sizeof(char *);\r
127 } else if (region == 1 || region == 2) {\r
128 files = biosfiles_jp;\r
129 count = sizeof(biosfiles_jp) / sizeof(char *);\r
130 } else {\r
131 return 0;\r
132 }\r
133\r
134 for (i = 0; i < count; i++)\r
135 {\r
136 emu_make_path(bios_path, files[i], sizeof(bios_path) - 4);\r
137 strcat(bios_path, ".bin");\r
138 f = fopen(bios_path, "rb");\r
139 if (f) break;\r
140\r
141 bios_path[strlen(bios_path) - 4] = 0;\r
142 strcat(bios_path, ".zip");\r
143 f = fopen(bios_path, "rb");\r
144 if (f) break;\r
145 }\r
146\r
147 if (f) {\r
148 lprintf("using bios: %s\n", bios_path);\r
149 fclose(f);\r
150 if (bios_file) *bios_file = bios_path;\r
151 return 1;\r
152 } else {\r
153 sprintf(bios_path, "no %s BIOS files found, read docs",\r
154 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
155 me_update_msg(bios_path);\r
156 return 0;\r
157 }\r
158}\r
159\r
160/* check if the name begins with BIOS name */\r
161/*\r
162static int emu_isBios(const char *name)\r
163{\r
164 int i;\r
165 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
166 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
167 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
168 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
169 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
170 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
171 return 0;\r
172}\r
173*/\r
174\r
175static unsigned char id_header[0x100];\r
176\r
177/* checks if fname points to valid MegaCD image */\r
178static int emu_cd_check(int *pregion, const char *fname_in)\r
179{\r
180 const char *fname = fname_in;\r
181 unsigned char buf[32];\r
182 pm_file *cd_f;\r
183 int region = 4; // 1: Japan, 4: US, 8: Europe\r
184 char ext[5];\r
185 cue_track_type type = CT_UNKNOWN;\r
186 cue_data_t *cue_data = NULL;\r
187\r
188 get_ext(fname_in, ext);\r
189 if (strcasecmp(ext, ".cue") == 0) {\r
190 cue_data = cue_parse(fname_in);\r
191 if (cue_data != NULL) {\r
192 fname = cue_data->tracks[1].fname;\r
193 type = cue_data->tracks[1].type;\r
194 }\r
195 else\r
196 return -1;\r
197 }\r
198\r
199 cd_f = pm_open(fname);\r
200 if (cue_data != NULL)\r
201 cue_destroy(cue_data);\r
202\r
203 if (cd_f == NULL) return 0; // let the upper level handle this\r
204\r
205 if (pm_read(buf, 32, cd_f) != 32) {\r
206 pm_close(cd_f);\r
207 return -1;\r
208 }\r
209\r
210 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {\r
211 if (type && type != CT_ISO)\r
212 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
213 type = CT_ISO; // Sega CD (ISO)\r
214 }\r
215 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {\r
216 if (type && type != CT_BIN)\r
217 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
218 type = CT_BIN; // Sega CD (BIN)\r
219 }\r
220\r
221 if (type == CT_UNKNOWN) {\r
222 pm_close(cd_f);\r
223 return 0;\r
224 }\r
225\r
226 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);\r
227 pm_read(id_header, sizeof(id_header), cd_f);\r
228\r
229 /* it seems we have a CD image here. Try to detect region now.. */\r
230 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
231 pm_read(buf, 1, cd_f);\r
232 pm_close(cd_f);\r
233\r
234 if (buf[0] == 0x64) region = 8; // EU\r
235 if (buf[0] == 0xa1) region = 1; // JAP\r
236\r
237 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
238 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
239\r
240 if (pregion != NULL) *pregion = region;\r
241\r
242 return type;\r
243}\r
244\r
245static int detect_media(const char *fname)\r
246{\r
247 static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 };\r
248 static const char *sms_exts[] = { "sms", "gg", "sg" };\r
249 static const char *md_exts[] = { "gen", "bin", "smd" };\r
250 char buff0[32], buff[32];\r
251 unsigned short *d16;\r
252 pm_file *pmf;\r
253 char ext[5];\r
254 int i;\r
255\r
256 get_ext(fname, ext);\r
257\r
258 // detect wrong extensions\r
259 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) // s.gz ~ .mds.gz\r
260 return PM_BAD;\r
261\r
262 /* don't believe in extensions, except .cue */\r
263 if (strcasecmp(ext, ".cue") == 0)\r
264 return PM_CD;\r
265\r
266 pmf = pm_open(fname);\r
267 if (pmf == NULL)\r
268 return PM_BAD;\r
269\r
270 if (pm_read(buff0, 32, pmf) != 32) {\r
271 pm_close(pmf);\r
272 return PM_BAD;\r
273 }\r
274\r
275 if (strncasecmp("SEGADISCSYSTEM", buff0 + 0x00, 14) == 0 ||\r
276 strncasecmp("SEGADISCSYSTEM", buff0 + 0x10, 14) == 0) {\r
277 pm_close(pmf);\r
278 return PM_CD;\r
279 }\r
280\r
281 /* check for SMD evil */\r
282 if (pmf->size >= 0x4200 && (pmf->size & 0x3fff) == 0x200) {\r
283 if (pm_seek(pmf, sms_offsets[0] + 0x200, SEEK_SET) == sms_offsets[0] + 0x200 &&\r
284 pm_read(buff, 16, pmf) == 16 &&\r
285 strncmp("TMR SEGA", buff, 8) == 0)\r
286 goto looks_like_sms;\r
287\r
288 /* could parse further but don't bother */\r
289 goto extension_check;\r
290 }\r
291\r
292 /* MD header? Act as TMSS BIOS here */\r
293 if (pm_seek(pmf, 0x100, SEEK_SET) == 0x100 && pm_read(buff, 16, pmf) == 16) {\r
294 if (strncmp(buff, "SEGA", 4) == 0 || strncmp(buff, " SEG", 4) == 0)\r
295 goto looks_like_md;\r
296 }\r
297\r
298 for (i = 0; i < array_size(sms_offsets); i++) {\r
299 if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i])\r
300 continue;\r
301\r
302 if (pm_read(buff, 16, pmf) != 16)\r
303 continue;\r
304\r
305 if (strncmp("TMR SEGA", buff, 8) == 0)\r
306 goto looks_like_sms;\r
307 }\r
308\r
309extension_check:\r
310 /* probably some headerless thing. Maybe check the extension after all. */\r
311 for (i = 0; i < array_size(md_exts); i++)\r
312 if (strcasecmp(pmf->ext, md_exts[i]) == 0)\r
313 goto looks_like_md;\r
314\r
315 for (i = 0; i < array_size(sms_exts); i++)\r
316 if (strcasecmp(pmf->ext, sms_exts[i]) == 0)\r
317 goto looks_like_sms;\r
318\r
319 /* If everything else fails, make a guess on the reset vector */\r
320 d16 = (unsigned short *)(buff0 + 4);\r
321 if ((((d16[0] << 16) | d16[1]) & 0xffffff) >= pmf->size) {\r
322 lprintf("bad MD reset vector, assuming SMS\n");\r
323 goto looks_like_sms;\r
324 }\r
325\r
326looks_like_md:\r
327 pm_close(pmf);\r
328 return PM_MD_CART;\r
329\r
330looks_like_sms:\r
331 pm_close(pmf);\r
332 return PM_MARK3;\r
333}\r
334\r
335static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r
336{\r
337 char *p = dest;\r
338 int i;\r
339\r
340 if (swab) swab = 1;\r
341\r
342 for (i = len - 1; i >= 0; i--)\r
343 {\r
344 if (src[i^swab] != ' ') break;\r
345 }\r
346 len = i + 1;\r
347\r
348 for (i = 0; i < len; i++)\r
349 {\r
350 unsigned char s = src[i^swab];\r
351 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
352 s != '[' && s != ']' && s != '\\')\r
353 {\r
354 *p++ = s;\r
355 }\r
356 else\r
357 {\r
358 sprintf(p, "\\%02x", s);\r
359 p += 3;\r
360 }\r
361 }\r
362\r
363 return p - dest;\r
364}\r
365\r
366static char *emu_make_rom_id(void)\r
367{\r
368 static char id_string[3+0xe*3+0x3*3+0x30*3+3];\r
369 int pos, swab = 1;\r
370\r
371 if (PicoAHW & PAHW_MCD) {\r
372 strcpy(id_string, "CD|");\r
373 swab = 0;\r
374 }\r
375 else strcpy(id_string, "MD|");\r
376 pos = 3;\r
377\r
378 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r
379 id_string[pos] = '|'; pos++;\r
380 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r
381 id_string[pos] = '|'; pos++;\r
382 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r
383 id_string[pos] = 0;\r
384\r
385 return id_string;\r
386}\r
387\r
388// buffer must be at least 150 byte long\r
389void emu_get_game_name(char *str150)\r
390{\r
391 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;\r
392 char *s, *d;\r
393\r
394 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name\r
395\r
396 for (s = d = str150 + 1; s < str150+ret; s++)\r
397 {\r
398 if (*s == 0) break;\r
399 if (*s != ' ' || d[-1] != ' ')\r
400 *d++ = *s;\r
401 }\r
402 *d = 0;\r
403}\r
404\r
405static void shutdown_MCD(void)\r
406{\r
407 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)\r
408 Stop_CD();\r
409 PicoAHW &= ~PAHW_MCD;\r
410}\r
411\r
412// note: this function might mangle rom_fname\r
413// XXX: portions of this code should move to pico/\r
414int emu_reload_rom(char *rom_fname)\r
415{\r
416 unsigned int rom_size = 0;\r
417 char *used_rom_name = rom_fname;\r
418 unsigned char *rom_data = NULL;\r
419 char ext[5];\r
420 pm_file *rom = NULL;\r
421 int cd_state = CIT_NOT_CD;\r
422 int ret, media_type, cd_region;\r
423 int cfg_loaded = 0, bad_rom = 0;\r
424\r
425 lprintf("emu_ReloadRom(%s)\n", rom_fname);\r
426\r
427 get_ext(rom_fname, ext);\r
428\r
429 // check for movie file\r
430 if (movie_data) {\r
431 free(movie_data);\r
432 movie_data = 0;\r
433 }\r
434 if (!strcmp(ext, ".gmv"))\r
435 {\r
436 // check for both gmv and rom\r
437 int dummy;\r
438 FILE *movie_file = fopen(rom_fname, "rb");\r
439 if(!movie_file) {\r
440 me_update_msg("Failed to open movie.");\r
441 return 0;\r
442 }\r
443 fseek(movie_file, 0, SEEK_END);\r
444 movie_size = ftell(movie_file);\r
445 fseek(movie_file, 0, SEEK_SET);\r
446 if(movie_size < 64+3) {\r
447 me_update_msg("Invalid GMV file.");\r
448 fclose(movie_file);\r
449 return 0;\r
450 }\r
451 movie_data = malloc(movie_size);\r
452 if(movie_data == NULL) {\r
453 me_update_msg("low memory.");\r
454 fclose(movie_file);\r
455 return 0;\r
456 }\r
457 fread(movie_data, 1, movie_size, movie_file);\r
458 fclose(movie_file);\r
459 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
460 me_update_msg("Invalid GMV file.");\r
461 return 0;\r
462 }\r
463 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
464 if (!dummy) {\r
465 me_update_msg("Could't find a ROM for movie.");\r
466 return 0;\r
467 }\r
468 get_ext(rom_fname, ext);\r
469 lprintf("gmv loaded for %s\n", rom_fname);\r
470 }\r
471 else if (!strcmp(ext, ".pat"))\r
472 {\r
473 int dummy;\r
474 PicoPatchLoad(rom_fname);\r
475 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
476 if (!dummy) {\r
477 me_update_msg("Could't find a ROM to patch.");\r
478 return 0;\r
479 }\r
480 get_ext(rom_fname, ext);\r
481 }\r
482\r
483 media_type = detect_media(rom_fname);\r
484 if (media_type == PM_BAD) {\r
485 me_update_msg("Not a ROM/CD img selected.");\r
486 return 0;\r
487 }\r
488\r
489 shutdown_MCD();\r
490 PicoPatchUnload();\r
491 PicoAHW = 0;\r
492\r
493 if (media_type == PM_CD)\r
494 {\r
495 // check for MegaCD image\r
496 cd_state = emu_cd_check(&cd_region, rom_fname);\r
497 if (cd_state >= 0 && cd_state != CIT_NOT_CD)\r
498 {\r
499 // valid CD image, check for BIOS..\r
500\r
501 // we need to have config loaded at this point\r
502 ret = emu_read_config(1, 0);\r
503 if (!ret) emu_read_config(0, 0);\r
504 cfg_loaded = 1;\r
505\r
506 if (PicoRegionOverride) {\r
507 cd_region = PicoRegionOverride;\r
508 lprintf("override region to %s\n", cd_region != 4 ?\r
509 (cd_region == 8 ? "EU" : "JAP") : "USA");\r
510 }\r
511 if (!find_bios(cd_region, &used_rom_name))\r
512 return 0;\r
513\r
514 get_ext(used_rom_name, ext);\r
515 PicoAHW |= PAHW_MCD;\r
516 }\r
517 else {\r
518 me_update_msg("Invalid CD image");\r
519 return 0;\r
520 }\r
521 }\r
522 else if (media_type == PM_MARK3) {\r
523 lprintf("detected SMS ROM\n");\r
524 PicoAHW = PAHW_SMS;\r
525 }\r
526\r
527 rom = pm_open(used_rom_name);\r
528 if (rom == NULL) {\r
529 me_update_msg("Failed to open ROM");\r
530 return 0;\r
531 }\r
532\r
533 menu_romload_prepare(used_rom_name); // also CD load\r
534\r
535 PicoCartUnload();\r
536 rom_loaded = 0;\r
537\r
538 ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);\r
539 pm_close(rom);\r
540 if (ret != 0) {\r
541 if (ret == 2) me_update_msg("Out of memory");\r
542 else if (ret == 3) me_update_msg("Read failed");\r
543 else me_update_msg("PicoCartLoad() failed.");\r
544 goto fail;\r
545 }\r
546\r
547 // detect wrong files\r
548 if (strncmp((char *)rom_data, "Pico", 4) == 0)\r
549 bad_rom = 1;\r
550 else if (!(PicoAHW & PAHW_SMS)) {\r
551 unsigned short *d = (unsigned short *)(rom_data + 4);\r
552 if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {\r
553 lprintf("bad reset vector\n");\r
554 bad_rom = 1;\r
555 }\r
556 }\r
557\r
558 if (bad_rom) {\r
559 me_update_msg("Bad ROM detected.");\r
560 goto fail;\r
561 }\r
562\r
563 // load config for this ROM (do this before insert to get correct region)\r
564 if (!(PicoAHW & PAHW_MCD))\r
565 memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r
566 if (!cfg_loaded) {\r
567 ret = emu_read_config(1, 0);\r
568 if (!ret) emu_read_config(0, 0);\r
569 }\r
570\r
571 if (PicoCartInsert(rom_data, rom_size)) {\r
572 me_update_msg("Failed to load ROM.");\r
573 goto fail;\r
574 }\r
575\r
576 // insert CD if it was detected\r
577 if (cd_state != CIT_NOT_CD) {\r
578 ret = Insert_CD(rom_fname, cd_state);\r
579 if (ret != 0) {\r
580 PicoCartUnload();\r
581 rom_data = NULL; // freed by unload\r
582 me_update_msg("Insert_CD() failed, invalid CD image?");\r
583 goto fail;\r
584 }\r
585 }\r
586\r
587 menu_romload_end();\r
588\r
589 if (PicoPatches) {\r
590 PicoPatchPrepare();\r
591 PicoPatchApply();\r
592 }\r
593\r
594 // additional movie stuff\r
595 if (movie_data)\r
596 {\r
597 if (movie_data[0x14] == '6')\r
598 PicoOpt |= POPT_6BTN_PAD; // 6 button pad\r
599 else PicoOpt &= ~POPT_6BTN_PAD;\r
600 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
601 if (movie_data[0xF] >= 'A') {\r
602 if (movie_data[0x16] & 0x80) {\r
603 PicoRegionOverride = 8;\r
604 } else {\r
605 PicoRegionOverride = 4;\r
606 }\r
607 PicoReset();\r
608 // TODO: bits 6 & 5\r
609 }\r
610 movie_data[0x18+30] = 0;\r
611 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);\r
612 }\r
613 else\r
614 {\r
615 const char *sys_name, *tv_standard;\r
616 int fps;\r
617\r
618 if (PicoAHW & PAHW_SMS) {\r
619 sys_name = "Master System";\r
620 } else {\r
621 sys_name = "MegaDrive";\r
622 if ((Pico.m.hardware&0xc0) == 0x80)\r
623 sys_name = "Genesis";\r
624 }\r
625 tv_standard = Pico.m.pal ? "PAL" : "NTSC";\r
626 fps = Pico.m.pal ? 50 : 60;\r
627\r
628 emu_status_msg("%s %s / %dFPS", tv_standard, sys_name, fps);\r
629\r
630 PicoOpt &= ~POPT_DIS_VDP_FIFO;\r
631 }\r
632\r
633 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);\r
634 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
635 rom_loaded = 1;\r
636\r
637 // load SRAM for this ROM\r
638 if (currentConfig.EmuOpt & EOPT_EN_SRAM)\r
639 emu_save_load_game(1, 1);\r
640\r
641 return 1;\r
642\r
643fail:\r
644 if (rom_data)\r
645 free(rom_data);\r
646 menu_romload_end();\r
647 return 0;\r
648}\r
649\r
650int emu_swap_cd(const char *fname)\r
651{\r
652 cd_img_type cd_type;\r
653 int ret = -1;\r
654\r
655 cd_type = emu_cd_check(NULL, fname);\r
656 if (cd_type != CIT_NOT_CD)\r
657 ret = Insert_CD(fname, cd_type);\r
658 if (ret != 0) {\r
659 me_update_msg("Load failed, invalid CD image?");\r
660 return 0;\r
661 }\r
662\r
663 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);\r
664 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
665 return 1;\r
666}\r
667\r
668static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
669{\r
670 char *p;\r
671 int prefix_len = 0;\r
672\r
673 // make save filename\r
674 p = rom_fname_loaded + strlen(rom_fname_loaded) - 1;\r
675 for (; p >= rom_fname_loaded && *p != PATH_SEP_C; p--); p++;\r
676 *dst = 0;\r
677 if (prefix) {\r
678 int len = plat_get_root_dir(dst, 512);\r
679 strcpy(dst + len, prefix);\r
680 prefix_len = len + strlen(prefix);\r
681 }\r
682#ifdef UIQ3\r
683 else p = rom_fname_loaded; // backward compatibility\r
684#endif\r
685 strncpy(dst + prefix_len, p, 511-prefix_len);\r
686 dst[511-8] = 0;\r
687 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
688 if (ext) strcat(dst, ext);\r
689}\r
690\r
691void emu_make_path(char *buff, const char *end, int size)\r
692{\r
693 int pos, end_len;\r
694\r
695 end_len = strlen(end);\r
696 pos = plat_get_root_dir(buff, size);\r
697 strncpy(buff + pos, end, size - pos);\r
698 buff[size - 1] = 0;\r
699 if (pos + end_len > size - 1)\r
700 lprintf("Warning: path truncated: %s\n", buff);\r
701}\r
702\r
703static void make_config_cfg(char *cfg_buff_512)\r
704{\r
705 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);\r
706 if (config_slot != 0)\r
707 {\r
708 char *p = strrchr(cfg_buff_512, '.');\r
709 if (p == NULL)\r
710 p = cfg_buff_512 + strlen(cfg_buff_512);\r
711 sprintf(p, ".%i.cfg", config_slot);\r
712 }\r
713 cfg_buff_512[511] = 0;\r
714}\r
715\r
716void emu_set_defconfig(void)\r
717{\r
718 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
719 PicoOpt = currentConfig.s_PicoOpt;\r
720 PsndRate = currentConfig.s_PsndRate;\r
721 PicoRegionOverride = currentConfig.s_PicoRegion;\r
722 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
723 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
724}\r
725\r
726int emu_read_config(int game, int no_defaults)\r
727{\r
728 char cfg[512];\r
729 int ret;\r
730\r
731 if (!no_defaults)\r
732 emu_set_defconfig();\r
733\r
734 if (!game)\r
735 {\r
736 make_config_cfg(cfg);\r
737 ret = config_readsect(cfg, NULL);\r
738 }\r
739 else\r
740 {\r
741 char *sect = emu_make_rom_id();\r
742\r
743 // try new .cfg way\r
744 if (config_slot != 0)\r
745 sprintf(cfg, "game.%i.cfg", config_slot);\r
746 else strcpy(cfg, "game.cfg");\r
747\r
748 ret = -1;\r
749 if (config_havesect(cfg, sect))\r
750 {\r
751 // read user's config\r
752 int vol = currentConfig.volume;\r
753 emu_set_defconfig();\r
754 ret = config_readsect(cfg, sect);\r
755 currentConfig.volume = vol; // make vol global (bah)\r
756 }\r
757 else\r
758 {\r
759 // read global config, and apply game_def.cfg on top\r
760 make_config_cfg(cfg);\r
761 config_readsect(cfg, NULL);\r
762 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));\r
763 ret = config_readsect(cfg, sect);\r
764 }\r
765\r
766 if (ret == 0)\r
767 {\r
768 lprintf("loaded cfg from sect \"%s\"\n", sect);\r
769 }\r
770 }\r
771\r
772 plat_validate_config();\r
773\r
774 // some sanity checks\r
775#ifdef PSP\r
776 /* TODO: mv to plat_validate_config() */\r
777 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
778 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
779 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
780#endif\r
781 if (currentConfig.volume < 0 || currentConfig.volume > 99)\r
782 currentConfig.volume = 50;\r
783\r
784 if (ret == 0)\r
785 config_slot_current = config_slot;\r
786\r
787 return (ret == 0);\r
788}\r
789\r
790\r
791int emu_write_config(int is_game)\r
792{\r
793 char cfg[512], *game_sect = NULL;\r
794 int ret, write_lrom = 0;\r
795\r
796 if (!is_game)\r
797 {\r
798 make_config_cfg(cfg);\r
799 write_lrom = 1;\r
800 } else {\r
801 if (config_slot != 0)\r
802 sprintf(cfg, "game.%i.cfg", config_slot);\r
803 else strcpy(cfg, "game.cfg");\r
804 game_sect = emu_make_rom_id();\r
805 lprintf("emu_write_config: sect \"%s\"\n", game_sect);\r
806 }\r
807\r
808 lprintf("emu_write_config: %s ", cfg);\r
809 ret = config_writesect(cfg, game_sect);\r
810 if (write_lrom) config_writelrom(cfg);\r
811#ifndef NO_SYNC\r
812 sync();\r
813#endif\r
814 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
815\r
816 if (ret == 0) config_slot_current = config_slot;\r
817 return ret == 0;\r
818}\r
819\r
820\r
821/* always using built-in font */\r
822\r
823#define mk_text_out(name, type, val, topleft, step_x, step_y) \\r
824void name(int x, int y, const char *text) \\r
825{ \\r
826 int i, l, len = strlen(text); \\r
827 type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r
828 \\r
829 for (i = 0; i < len; i++, screen += 8 * step_x) \\r
830 { \\r
831 for (l = 0; l < 8; l++) \\r
832 { \\r
833 unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r
834 type *s = screen + l * step_y; \\r
835 if (fd&0x80) s[step_x * 0] = val; \\r
836 if (fd&0x40) s[step_x * 1] = val; \\r
837 if (fd&0x20) s[step_x * 2] = val; \\r
838 if (fd&0x10) s[step_x * 3] = val; \\r
839 if (fd&0x08) s[step_x * 4] = val; \\r
840 if (fd&0x04) s[step_x * 5] = val; \\r
841 if (fd&0x02) s[step_x * 6] = val; \\r
842 if (fd&0x01) s[step_x * 7] = val; \\r
843 } \\r
844 } \\r
845}\r
846\r
847mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r
848mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r
849mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r
850 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
851mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r
852 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
853\r
854#undef mk_text_out\r
855\r
856\r
857void update_movie(void)\r
858{\r
859 int offs = Pico.m.frame_count*3 + 0x40;\r
860 if (offs+3 > movie_size) {\r
861 free(movie_data);\r
862 movie_data = 0;\r
863 emu_status_msg("END OF MOVIE.");\r
864 lprintf("END OF MOVIE.\n");\r
865 } else {\r
866 // MXYZ SACB RLDU\r
867 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
868 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C\r
869 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A\r
870 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B\r
871 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
872 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C\r
873 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A\r
874 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B\r
875 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
876 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
877 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
878 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
879 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
880 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
881 }\r
882}\r
883\r
884static int try_ropen_file(const char *fname)\r
885{\r
886 FILE *f;\r
887\r
888 f = fopen(fname, "rb");\r
889 if (f) {\r
890 fclose(f);\r
891 return 1;\r
892 }\r
893 return 0;\r
894}\r
895\r
896char *emu_get_save_fname(int load, int is_sram, int slot)\r
897{\r
898 static char saveFname[512];\r
899 char ext[16];\r
900\r
901 if (is_sram)\r
902 {\r
903 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r
904 romfname_ext(saveFname, (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);\r
905 if (!load)\r
906 return saveFname;\r
907\r
908 if (try_ropen_file(saveFname))\r
909 return saveFname;\r
910\r
911 romfname_ext(saveFname, NULL, ext);\r
912 if (try_ropen_file(saveFname))\r
913 return saveFname;\r
914 }\r
915 else\r
916 {\r
917 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";\r
918 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";\r
919 ext[0] = 0;\r
920 if (slot > 0 && slot < 10)\r
921 sprintf(ext, ".%i", slot);\r
922 strcat(ext, ext_main);\r
923\r
924 if (!load) {\r
925 romfname_ext(saveFname, "mds" PATH_SEP, ext);\r
926 return saveFname;\r
927 }\r
928 else {\r
929 romfname_ext(saveFname, "mds" PATH_SEP, ext);\r
930 if (try_ropen_file(saveFname))\r
931 return saveFname;\r
932\r
933 romfname_ext(saveFname, NULL, ext);\r
934 if (try_ropen_file(saveFname))\r
935 return saveFname;\r
936\r
937 // try the other ext\r
938 ext[0] = 0;\r
939 if (slot > 0 && slot < 10)\r
940 sprintf(ext, ".%i", slot);\r
941 strcat(ext, ext_othr);\r
942\r
943 romfname_ext(saveFname, "mds"PATH_SEP, ext);\r
944 if (try_ropen_file(saveFname))\r
945 return saveFname;\r
946 }\r
947 }\r
948\r
949 return NULL;\r
950}\r
951\r
952int emu_check_save_file(int slot)\r
953{\r
954 return emu_get_save_fname(1, 0, slot) ? 1 : 0;\r
955}\r
956\r
957int emu_save_load_game(int load, int sram)\r
958{\r
959 int ret = 0;\r
960 char *saveFname;\r
961\r
962 // make save filename\r
963 saveFname = emu_get_save_fname(load, sram, state_slot);\r
964 if (saveFname == NULL) {\r
965 if (!sram)\r
966 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r
967 return -1;\r
968 }\r
969\r
970 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
971\r
972 if (sram)\r
973 {\r
974 FILE *sramFile;\r
975 int sram_size;\r
976 unsigned char *sram_data;\r
977 int truncate = 1;\r
978 if (PicoAHW & PAHW_MCD)\r
979 {\r
980 if (PicoOpt & POPT_EN_MCD_RAMCART) {\r
981 sram_size = 0x12000;\r
982 sram_data = SRam.data;\r
983 if (sram_data)\r
984 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
985 } else {\r
986 sram_size = 0x2000;\r
987 sram_data = Pico_mcd->bram;\r
988 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
989 }\r
990 } else {\r
991 sram_size = SRam.size;\r
992 sram_data = SRam.data;\r
993 }\r
994 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
995\r
996 if (load)\r
997 {\r
998 sramFile = fopen(saveFname, "rb");\r
999 if(!sramFile) return -1;\r
1000 fread(sram_data, 1, sram_size, sramFile);\r
1001 fclose(sramFile);\r
1002 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r
1003 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
1004 } else {\r
1005 // sram save needs some special processing\r
1006 // see if we have anything to save\r
1007 for (; sram_size > 0; sram_size--)\r
1008 if (sram_data[sram_size-1]) break;\r
1009\r
1010 if (sram_size) {\r
1011 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
1012 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
1013 if (!sramFile) return -1;\r
1014 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
1015 ret = (ret != sram_size) ? -1 : 0;\r
1016 fclose(sramFile);\r
1017#ifndef NO_SYNC\r
1018 sync();\r
1019#endif\r
1020 }\r
1021 }\r
1022 return ret;\r
1023 }\r
1024 else\r
1025 {\r
1026 ret = PicoState(saveFname, !load);\r
1027 if (!ret) {\r
1028#ifndef NO_SYNC\r
1029 if (!load) sync();\r
1030#endif\r
1031 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");\r
1032 } else {\r
1033 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r
1034 ret = -1;\r
1035 }\r
1036\r
1037 return ret;\r
1038 }\r
1039}\r
1040\r
1041void emu_set_fastforward(int set_on)\r
1042{\r
1043 static void *set_PsndOut = NULL;\r
1044 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
1045\r
1046 if (set_on && !is_on) {\r
1047 set_PsndOut = PsndOut;\r
1048 set_Frameskip = currentConfig.Frameskip;\r
1049 set_EmuOpt = currentConfig.EmuOpt;\r
1050 PsndOut = NULL;\r
1051 currentConfig.Frameskip = 8;\r
1052 currentConfig.EmuOpt &= ~4;\r
1053 currentConfig.EmuOpt |= 0x40000;\r
1054 is_on = 1;\r
1055 emu_status_msg("FAST FORWARD");\r
1056 }\r
1057 else if (!set_on && is_on) {\r
1058 PsndOut = set_PsndOut;\r
1059 currentConfig.Frameskip = set_Frameskip;\r
1060 currentConfig.EmuOpt = set_EmuOpt;\r
1061 PsndRerate(1);\r
1062 is_on = 0;\r
1063 }\r
1064}\r
1065\r
1066static void emu_tray_open(void)\r
1067{\r
1068 engineState = PGS_TrayMenu;\r
1069}\r
1070\r
1071static void emu_tray_close(void)\r
1072{\r
1073 emu_status_msg("CD tray closed.");\r
1074}\r
1075\r
1076void emu_reset_game(void)\r
1077{\r
1078 PicoReset();\r
1079 reset_timing = 1;\r
1080}\r
1081\r
1082void run_events_pico(unsigned int events)\r
1083{\r
1084 int lim_x;\r
1085\r
1086 if (events & PEV_PICO_SWINP) {\r
1087 pico_inp_mode++;\r
1088 if (pico_inp_mode > 2)\r
1089 pico_inp_mode = 0;\r
1090 switch (pico_inp_mode) {\r
1091 case 2: emu_status_msg("Input: Pen on Pad"); break;\r
1092 case 1: emu_status_msg("Input: Pen on Storyware"); break;\r
1093 case 0: emu_status_msg("Input: Joystick");\r
1094 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
1095 break;\r
1096 }\r
1097 }\r
1098 if (events & PEV_PICO_PPREV) {\r
1099 PicoPicohw.page--;\r
1100 if (PicoPicohw.page < 0)\r
1101 PicoPicohw.page = 0;\r
1102 emu_status_msg("Page %i", PicoPicohw.page);\r
1103 }\r
1104 if (events & PEV_PICO_PNEXT) {\r
1105 PicoPicohw.page++;\r
1106 if (PicoPicohw.page > 6)\r
1107 PicoPicohw.page = 6;\r
1108 emu_status_msg("Page %i", PicoPicohw.page);\r
1109 }\r
1110\r
1111 if (pico_inp_mode == 0)\r
1112 return;\r
1113\r
1114 /* handle other input modes */\r
1115 if (PicoPad[0] & 1) pico_pen_y--;\r
1116 if (PicoPad[0] & 2) pico_pen_y++;\r
1117 if (PicoPad[0] & 4) pico_pen_x--;\r
1118 if (PicoPad[0] & 8) pico_pen_x++;\r
1119 PicoPad[0] &= ~0x0f; // release UDLR\r
1120\r
1121 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
1122 if (pico_pen_y < 8)\r
1123 pico_pen_y = 8;\r
1124 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r
1125 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r
1126 if (pico_pen_x < 0)\r
1127 pico_pen_x = 0;\r
1128 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r
1129 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r
1130\r
1131 PicoPicohw.pen_pos[0] = pico_pen_x;\r
1132 if (!(Pico.video.reg[12] & 1))\r
1133 PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r
1134 PicoPicohw.pen_pos[0] += 0x3c;\r
1135 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
1136}\r
1137\r
1138static void do_turbo(int *pad, int acts)\r
1139{\r
1140 static int turbo_pad = 0;\r
1141 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1142 int inc = currentConfig.turbo_rate * 2;\r
1143\r
1144 if (acts & 0x1000) {\r
1145 turbo_cnt[0] += inc;\r
1146 if (turbo_cnt[0] >= 60)\r
1147 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1148 }\r
1149 if (acts & 0x2000) {\r
1150 turbo_cnt[1] += inc;\r
1151 if (turbo_cnt[1] >= 60)\r
1152 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1153 }\r
1154 if (acts & 0x4000) {\r
1155 turbo_cnt[2] += inc;\r
1156 if (turbo_cnt[2] >= 60)\r
1157 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1158 }\r
1159 *pad |= turbo_pad & (acts >> 8);\r
1160}\r
1161\r
1162static void run_events_ui(unsigned int which)\r
1163{\r
1164 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r
1165 {\r
1166 int do_it = 1;\r
1167 if ( emu_check_save_file(state_slot) &&\r
1168 (((which & PEV_STATE_LOAD) && (currentConfig.EmuOpt & EOPT_CONFIRM_LOAD)) ||\r
1169 ((which & PEV_STATE_SAVE) && (currentConfig.EmuOpt & EOPT_CONFIRM_SAVE))) )\r
1170 {\r
1171 const char *nm;\r
1172 char tmp[64];\r
1173 int keys, len;\r
1174\r
1175 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");\r
1176 len = strlen(tmp);\r
1177 nm = in_get_key_name(-1, -PBTN_MA3);\r
1178 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
1179 len = strlen(tmp);\r
1180 nm = in_get_key_name(-1, -PBTN_MBACK);\r
1181 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
1182\r
1183 plat_status_msg_busy_first(tmp);\r
1184\r
1185 in_set_blocking(1);\r
1186 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r
1187 ;\r
1188 while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )\r
1189 ;\r
1190 if (keys & PBTN_MBACK)\r
1191 do_it = 0;\r
1192 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r
1193 ;\r
1194 in_set_blocking(0);\r
1195 }\r
1196 if (do_it) {\r
1197 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");\r
1198 PicoStateProgressCB = plat_status_msg_busy_next;\r
1199 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r
1200 PicoStateProgressCB = NULL;\r
1201 }\r
1202 }\r
1203 if (which & PEV_SWITCH_RND)\r
1204 {\r
1205 plat_video_toggle_renderer(1, 0);\r
1206 }\r
1207 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r
1208 {\r
1209 if (which & PEV_SSLOT_PREV) {\r
1210 state_slot -= 1;\r
1211 if (state_slot < 0)\r
1212 state_slot = 9;\r
1213 } else {\r
1214 state_slot += 1;\r
1215 if (state_slot > 9)\r
1216 state_slot = 0;\r
1217 }\r
1218\r
1219 emu_status_msg("SAVE SLOT %i [%s]", state_slot,\r
1220 emu_check_save_file(state_slot) ? "USED" : "FREE");\r
1221 }\r
1222 if (which & PEV_MENU)\r
1223 engineState = PGS_Menu;\r
1224}\r
1225\r
1226void emu_update_input(void)\r
1227{\r
1228 static int prev_events = 0;\r
1229 int actions[IN_BINDTYPE_COUNT] = { 0, };\r
1230 int pl_actions[2];\r
1231 int events;\r
1232\r
1233 in_update(actions);\r
1234\r
1235 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r
1236 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r
1237\r
1238 PicoPad[0] = pl_actions[0] & 0xfff;\r
1239 PicoPad[1] = pl_actions[1] & 0xfff;\r
1240\r
1241 if (pl_actions[0] & 0x7000)\r
1242 do_turbo(&PicoPad[0], pl_actions[0]);\r
1243 if (pl_actions[1] & 0x7000)\r
1244 do_turbo(&PicoPad[1], pl_actions[1]);\r
1245\r
1246 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1247\r
1248 // volume is treated in special way and triggered every frame\r
1249 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r
1250 plat_update_volume(1, events & PEV_VOL_UP);\r
1251\r
1252 if ((events ^ prev_events) & PEV_FF) {\r
1253 emu_set_fastforward(events & PEV_FF);\r
1254 plat_update_volume(0, 0);\r
1255 reset_timing = 1;\r
1256 }\r
1257\r
1258 events &= ~prev_events;\r
1259\r
1260 if (PicoAHW == PAHW_PICO)\r
1261 run_events_pico(events);\r
1262 if (events)\r
1263 run_events_ui(events);\r
1264 if (movie_data)\r
1265 update_movie();\r
1266\r
1267 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1268}\r
1269\r
1270static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r
1271{\r
1272 strcpy(path_with_reserve + pos, name);\r
1273 if (plat_is_dir(path_with_reserve))\r
1274 return;\r
1275 if (mkdir(path_with_reserve, 0777) < 0)\r
1276 lprintf("failed to create: %s\n", path_with_reserve);\r
1277}\r
1278\r
1279void emu_init(void)\r
1280{\r
1281 char path[512];\r
1282 int pos;\r
1283\r
1284 /* make dirs for saves */\r
1285 pos = plat_get_root_dir(path, sizeof(path) - 4);\r
1286 mkdir_path(path, pos, "mds");\r
1287 mkdir_path(path, pos, "srm");\r
1288 mkdir_path(path, pos, "brm");\r
1289\r
1290 make_config_cfg(path);\r
1291 config_readlrom(path);\r
1292\r
1293 PicoInit();\r
1294 PicoMessage = plat_status_msg_busy_next;\r
1295 PicoMCDopenTray = emu_tray_open;\r
1296 PicoMCDcloseTray = emu_tray_close;\r
1297}\r
1298\r
1299void emu_finish(void)\r
1300{\r
1301 // save SRAM\r
1302 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1303 emu_save_load_game(0, 1);\r
1304 SRam.changed = 0;\r
1305 }\r
1306\r
1307 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r
1308 char cfg[512];\r
1309 make_config_cfg(cfg);\r
1310 config_writelrom(cfg);\r
1311#ifndef NO_SYNC\r
1312 sync();\r
1313#endif\r
1314 }\r
1315\r
1316 PicoExit();\r
1317}\r
1318\r
1319static void skip_frame(int do_audio)\r
1320{\r
1321 PicoSkipFrame = do_audio ? 1 : 2;\r
1322 PicoFrame();\r
1323 PicoSkipFrame = 0;\r
1324}\r
1325\r
1326/* our tick here is 1 us right now */\r
1327#define ms_to_ticks(x) (unsigned int)(x * 1000)\r
1328#define get_ticks() plat_get_ticks_us()\r
1329\r
1330void emu_loop(void)\r
1331{\r
1332 int pframes_done; /* "period" frames, used for sync */\r
1333 int frames_done, frames_shown; /* actual frames for fps counter */\r
1334 int target_fps, target_frametime;\r
1335 unsigned int timestamp_base = 0, timestamp_fps;\r
1336 char *notice_msg = NULL;\r
1337 char fpsbuff[24];\r
1338 int i;\r
1339\r
1340 fpsbuff[0] = 0;\r
1341\r
1342 /* make sure we are in correct mode */\r
1343 Pico.m.dirtyPal = 1;\r
1344 rendstatus_old = -1;\r
1345\r
1346 /* number of ticks per frame */\r
1347 if (Pico.m.pal) {\r
1348 target_fps = 50;\r
1349 target_frametime = ms_to_ticks(1000) / 50;\r
1350 } else {\r
1351 target_fps = 60;\r
1352 target_frametime = ms_to_ticks(1000) / 60 + 1;\r
1353 }\r
1354\r
1355 // prepare CD buffer\r
1356 if (PicoAHW & PAHW_MCD)\r
1357 PicoCDBufferInit();\r
1358\r
1359 pemu_loop_prep();\r
1360\r
1361 timestamp_fps = get_ticks();\r
1362 reset_timing = 1;\r
1363\r
1364 frames_done = frames_shown = pframes_done = 0;\r
1365\r
1366 plat_video_wait_vsync();\r
1367\r
1368 /* loop with resync every 1 sec. */\r
1369 while (engineState == PGS_Running)\r
1370 {\r
1371 unsigned int timestamp;\r
1372 int diff, diff_lim;\r
1373\r
1374 timestamp = get_ticks();\r
1375 if (reset_timing) {\r
1376 reset_timing = 0;\r
1377 timestamp_base = timestamp;\r
1378 pframes_done = 0;\r
1379 }\r
1380\r
1381 // show notice_msg message?\r
1382 if (notice_msg_time != 0)\r
1383 {\r
1384 static int noticeMsgSum;\r
1385 if (timestamp - ms_to_ticks(notice_msg_time) > ms_to_ticks(STATUS_MSG_TIMEOUT)) {\r
1386 notice_msg_time = 0;\r
1387 plat_status_msg_clear();\r
1388 notice_msg = NULL;\r
1389 } else {\r
1390 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];\r
1391 if (sum != noticeMsgSum) {\r
1392 plat_status_msg_clear();\r
1393 noticeMsgSum = sum;\r
1394 }\r
1395 notice_msg = noticeMsg;\r
1396 }\r
1397 }\r
1398\r
1399 // second changed?\r
1400 if (timestamp - timestamp_fps >= ms_to_ticks(1000))\r
1401 {\r
1402#ifdef BENCHMARK\r
1403 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1404 if (++bench == 10) {\r
1405 bench = 0;\r
1406 bench_fps_s = bench_fps;\r
1407 bf[bfp++ & 3] = bench_fps;\r
1408 bench_fps = 0;\r
1409 }\r
1410 bench_fps += frames_shown;\r
1411 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1412#else\r
1413 if (currentConfig.EmuOpt & EOPT_SHOW_FPS) {\r
1414 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1415 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
1416 }\r
1417#endif\r
1418 frames_shown = frames_done = 0;\r
1419 timestamp_fps += ms_to_ticks(1000);\r
1420 }\r
1421#ifdef PFRAMES\r
1422 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
1423#endif\r
1424\r
1425 if (timestamp - timestamp_base >= ms_to_ticks(1000))\r
1426 {\r
1427 if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && currentConfig.Frameskip >= 0)\r
1428 pframes_done = 0;\r
1429 else {\r
1430 pframes_done -= target_fps;\r
1431 /* don't allow it to drift during heavy slowdowns */\r
1432 if (pframes_done < -5) {\r
1433 reset_timing = 1;\r
1434 continue;\r
1435 }\r
1436 if (pframes_done < -2)\r
1437 pframes_done = -2;\r
1438 }\r
1439 timestamp_base += ms_to_ticks(1000);\r
1440 }\r
1441\r
1442 diff = timestamp - timestamp_base;\r
1443 diff_lim = (pframes_done + 1) * target_frametime;\r
1444\r
1445 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
1446 {\r
1447 for (i = 0; i < currentConfig.Frameskip; i++) {\r
1448 emu_update_input();\r
1449 skip_frame(1);\r
1450 pframes_done++; frames_done++;\r
1451 diff_lim += target_frametime;\r
1452\r
1453 if (!(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT)) {\r
1454 timestamp = get_ticks();\r
1455 diff = timestamp - timestamp_base;\r
1456 if (!reset_timing && diff < diff_lim) // we are too fast\r
1457 plat_wait_till_us(timestamp_base + diff_lim);\r
1458 }\r
1459 }\r
1460 }\r
1461 else if (diff > diff_lim)\r
1462 {\r
1463 /* no time left for this frame - skip */\r
1464 if (diff - diff_lim >= ms_to_ticks(200)) {\r
1465 /* if too much behind, reset instead */\r
1466 reset_timing = 1;\r
1467 continue;\r
1468 }\r
1469 emu_update_input();\r
1470 skip_frame(diff < diff_lim + target_frametime * 2);\r
1471 pframes_done++; frames_done++;\r
1472 continue;\r
1473 }\r
1474\r
1475 emu_update_input();\r
1476 PicoFrame();\r
1477\r
1478 /* frame limiter */\r
1479 if (!reset_timing && !(currentConfig.EmuOpt & EOPT_NO_FRMLIMIT))\r
1480 {\r
1481 timestamp = get_ticks();\r
1482 diff = timestamp - timestamp_base;\r
1483\r
1484 // sleep or vsync if we are still too fast\r
1485 if (diff < diff_lim)\r
1486 {\r
1487 // we are too fast\r
1488 plat_wait_till_us(timestamp_base + diff_lim - target_frametime / 4);\r
1489 if (currentConfig.EmuOpt & EOPT_VSYNC)\r
1490 plat_video_wait_vsync();\r
1491 }\r
1492 }\r
1493\r
1494 pemu_update_display(fpsbuff, notice_msg);\r
1495\r
1496 pframes_done++; frames_done++; frames_shown++;\r
1497 }\r
1498\r
1499 emu_set_fastforward(0);\r
1500\r
1501 // save SRAM\r
1502 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1503 plat_status_msg_busy_first("Writing SRAM/BRAM...");\r
1504 emu_save_load_game(0, 1);\r
1505 SRam.changed = 0;\r
1506 }\r
1507\r
1508 pemu_loop_end();\r
1509\r
1510 // pemu_loop_end() might want to do 1 frame for bg image,\r
1511 // so free CD buffer here\r
1512 if (PicoAHW & PAHW_MCD)\r
1513 PicoCDBufferFree();\r
1514}\r
1515\r
PicoDrive's frontend in a lib