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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
8\r
9#include <stdio.h>\r
10#include <stdlib.h>\r
11#include <string.h>\r
12#include <stdarg.h>\r
13#ifdef __GP2X__\r
14#include <unistd.h>\r
15#endif\r
16\r
17#include "../libpicofe/posix.h"\r
18#include "../libpicofe/input.h"\r
19#include "../libpicofe/fonts.h"\r
20#include "../libpicofe/sndout.h"\r
21#include "../libpicofe/lprintf.h"\r
22#include "../libpicofe/plat.h"\r
23#include "emu.h"\r
24#include "input_pico.h"\r
25#include "menu_pico.h"\r
26#include "config_file.h"\r
27\r
28#include <pico/pico_int.h>\r
29#include <pico/patch.h>\r
30\r
31#ifndef _WIN32\r
32#define PATH_SEP "/"\r
33#define PATH_SEP_C '/'\r
34#else\r
35#define PATH_SEP "\\"\r
36#define PATH_SEP_C '\\'\r
37#endif\r
38\r
39#define STATUS_MSG_TIMEOUT 2000\r
40\r
41void *g_screen_ptr;\r
42\r
43int g_screen_width = 320;\r
44int g_screen_height = 240;\r
45\r
46const char *PicoConfigFile = "config2.cfg";\r
47currentConfig_t currentConfig, defaultConfig;\r
48int state_slot = 0;\r
49int config_slot = 0, config_slot_current = 0;\r
50int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
51int pico_inp_mode;\r
52int flip_after_sync;\r
53int engineState = PGS_Menu;\r
54\r
55static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
56\r
57/* tmp buff to reduce stack usage for plats with small stack */\r
58static char static_buff[512];\r
59const char *rom_fname_reload;\r
60char rom_fname_loaded[512];\r
61int reset_timing = 0;\r
62static unsigned int notice_msg_time; /* when started showing */\r
63static char noticeMsg[40];\r
64\r
65unsigned char *movie_data = NULL;\r
66static int movie_size = 0;\r
67\r
68\r
69/* don't use tolower() for easy old glibc binary compatibility */\r
70static void strlwr_(char *string)\r
71{\r
72 char *p;\r
73 for (p = string; *p; p++)\r
74 if ('A' <= *p && *p <= 'Z')\r
75 *p += 'a' - 'A';\r
76}\r
77\r
78static int try_rfn_cut(char *fname)\r
79{\r
80 FILE *tmp;\r
81 char *p;\r
82\r
83 p = fname + strlen(fname) - 1;\r
84 for (; p > fname; p--)\r
85 if (*p == '.') break;\r
86 *p = 0;\r
87\r
88 if((tmp = fopen(fname, "rb"))) {\r
89 fclose(tmp);\r
90 return 1;\r
91 }\r
92 return 0;\r
93}\r
94\r
95static void get_ext(const char *file, char *ext)\r
96{\r
97 const char *p;\r
98\r
99 p = file + strlen(file) - 4;\r
100 if (p < file) p = file;\r
101 strncpy(ext, p, 4);\r
102 ext[4] = 0;\r
103 strlwr_(ext);\r
104}\r
105\r
106static void fname_ext(char *dst, int dstlen, const char *prefix, const char *ext, const char *fname)\r
107{\r
108 int prefix_len = 0;\r
109 const char *p;\r
110\r
111 *dst = 0;\r
112 if (prefix) {\r
113 int len = plat_get_root_dir(dst, dstlen);\r
114 strcpy(dst + len, prefix);\r
115 prefix_len = len + strlen(prefix);\r
116 }\r
117\r
118 p = fname + strlen(fname) - 1;\r
119 for (; p >= fname && *p != PATH_SEP_C; p--)\r
120 ;\r
121 p++;\r
122 strncpy(dst + prefix_len, p, dstlen - prefix_len - 1);\r
123\r
124 dst[dstlen - 8] = 0;\r
125 if (dst[strlen(dst) - 4] == '.')\r
126 dst[strlen(dst) - 4] = 0;\r
127 if (ext)\r
128 strcat(dst, ext);\r
129}\r
130\r
131static void romfname_ext(char *dst, int dstlen, const char *prefix, const char *ext)\r
132{\r
133 fname_ext(dst, dstlen, prefix, ext, rom_fname_loaded);\r
134}\r
135\r
136void emu_status_msg(const char *format, ...)\r
137{\r
138 va_list vl;\r
139 int ret;\r
140\r
141 va_start(vl, format);\r
142 ret = vsnprintf(noticeMsg, sizeof(noticeMsg), format, vl);\r
143 va_end(vl);\r
144\r
145 /* be sure old text gets overwritten */\r
146 for (; ret < 28; ret++)\r
147 noticeMsg[ret] = ' ';\r
148 noticeMsg[ret] = 0;\r
149\r
150 notice_msg_time = plat_get_ticks_ms();\r
151}\r
152\r
153static const char * const biosfiles_us[] = {\r
154 "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U"\r
155};\r
156static const char * const biosfiles_eu[] = {\r
157 "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E"\r
158};\r
159static const char * const biosfiles_jp[] = {\r
160 "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J"\r
161};\r
162\r
163static const char *find_bios(int *region, const char *cd_fname)\r
164{\r
165 int i, count;\r
166 const char * const *files;\r
167 FILE *f = NULL;\r
168 int ret;\r
169\r
170 // we need to have config loaded at this point\r
171 ret = emu_read_config(cd_fname, 0);\r
172 if (!ret) emu_read_config(NULL, 0);\r
173\r
174 if (PicoRegionOverride) {\r
175 *region = PicoRegionOverride;\r
176 lprintf("override region to %s\n", *region != 4 ?\r
177 (*region == 8 ? "EU" : "JAP") : "USA");\r
178 }\r
179\r
180 if (*region == 4) { // US\r
181 files = biosfiles_us;\r
182 count = sizeof(biosfiles_us) / sizeof(char *);\r
183 } else if (*region == 8) { // EU\r
184 files = biosfiles_eu;\r
185 count = sizeof(biosfiles_eu) / sizeof(char *);\r
186 } else if (*region == 1 || *region == 2) {\r
187 files = biosfiles_jp;\r
188 count = sizeof(biosfiles_jp) / sizeof(char *);\r
189 } else {\r
190 return 0;\r
191 }\r
192\r
193 for (i = 0; i < count; i++)\r
194 {\r
195 emu_make_path(static_buff, files[i], sizeof(static_buff) - 4);\r
196 strcat(static_buff, ".bin");\r
197 f = fopen(static_buff, "rb");\r
198 if (f) break;\r
199\r
200 static_buff[strlen(static_buff) - 4] = 0;\r
201 strcat(static_buff, ".zip");\r
202 f = fopen(static_buff, "rb");\r
203 if (f) break;\r
204 }\r
205\r
206 if (f) {\r
207 lprintf("using bios: %s\n", static_buff);\r
208 fclose(f);\r
209 return static_buff;\r
210 } else {\r
211 sprintf(static_buff, "no %s BIOS files found, read docs",\r
212 *region != 4 ? (*region == 8 ? "EU" : "JAP") : "USA");\r
213 menu_update_msg(static_buff);\r
214 return NULL;\r
215 }\r
216}\r
217\r
218/* check if the name begins with BIOS name */\r
219/*\r
220static int emu_isBios(const char *name)\r
221{\r
222 int i;\r
223 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
224 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
225 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
226 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
227 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
228 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
229 return 0;\r
230}\r
231*/\r
232\r
233static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r
234{\r
235 char *p = dest;\r
236 int i;\r
237\r
238 if (swab) swab = 1;\r
239\r
240 for (i = len - 1; i >= 0; i--)\r
241 {\r
242 if (src[i^swab] != ' ') break;\r
243 }\r
244 len = i + 1;\r
245\r
246 for (i = 0; i < len; i++)\r
247 {\r
248 unsigned char s = src[i^swab];\r
249 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
250 s != '[' && s != ']' && s != '\\')\r
251 {\r
252 *p++ = s;\r
253 }\r
254 else\r
255 {\r
256 sprintf(p, "\\%02x", s);\r
257 p += 3;\r
258 }\r
259 }\r
260\r
261 return p - dest;\r
262}\r
263\r
264static char *emu_make_rom_id(const char *fname)\r
265{\r
266 static char id_string[3+0xe*3+0x3*3+0x30*3+3];\r
267 int pos, swab = 1;\r
268\r
269 if (PicoAHW & PAHW_MCD) {\r
270 strcpy(id_string, "CD|");\r
271 swab = 0;\r
272 }\r
273 else if (PicoAHW & PAHW_SMS)\r
274 strcpy(id_string, "MS|");\r
275 else strcpy(id_string, "MD|");\r
276 pos = 3;\r
277\r
278 if (!(PicoAHW & PAHW_SMS)) {\r
279 pos += extract_text(id_string + pos, media_id_header + 0x80, 0x0e, swab); // serial\r
280 id_string[pos] = '|'; pos++;\r
281 pos += extract_text(id_string + pos, media_id_header + 0xf0, 0x03, swab); // region\r
282 id_string[pos] = '|'; pos++;\r
283 pos += extract_text(id_string + pos, media_id_header + 0x50, 0x30, swab); // overseas name\r
284 id_string[pos] = 0;\r
285 if (pos > 5)\r
286 return id_string;\r
287 pos = 3;\r
288 }\r
289\r
290 // can't find name in ROM, use filename\r
291 fname_ext(id_string + 3, sizeof(id_string) - 3, NULL, NULL, fname);\r
292\r
293 return id_string;\r
294}\r
295\r
296// buffer must be at least 150 byte long\r
297void emu_get_game_name(char *str150)\r
298{\r
299 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;\r
300 char *s, *d;\r
301\r
302 ret = extract_text(str150, media_id_header + 0x50, 0x30, swab); // overseas name\r
303\r
304 for (s = d = str150 + 1; s < str150+ret; s++)\r
305 {\r
306 if (*s == 0) break;\r
307 if (*s != ' ' || d[-1] != ' ')\r
308 *d++ = *s;\r
309 }\r
310 *d = 0;\r
311}\r
312\r
313static void system_announce(void)\r
314{\r
315 const char *sys_name, *tv_standard, *extra = "";\r
316 int fps;\r
317\r
318 if (PicoAHW & PAHW_SMS) {\r
319 sys_name = "Master System";\r
320#ifdef NO_SMS\r
321 extra = " [no support]";\r
322#endif\r
323 } else if (PicoAHW & PAHW_PICO) {\r
324 sys_name = "Pico";\r
325 } else if ((PicoAHW & (PAHW_32X|PAHW_MCD)) == (PAHW_32X|PAHW_MCD)) {\r
326 sys_name = "32X + Mega CD";\r
327 if ((Pico.m.hardware & 0xc0) == 0x80)\r
328 sys_name = "32X + Sega CD";\r
329 } else if (PicoAHW & PAHW_MCD) {\r
330 sys_name = "Mega CD";\r
331 if ((Pico.m.hardware & 0xc0) == 0x80)\r
332 sys_name = "Sega CD";\r
333 } else if (PicoAHW & PAHW_32X) {\r
334 sys_name = "32X";\r
335 } else {\r
336 sys_name = "MegaDrive";\r
337 if ((Pico.m.hardware & 0xc0) == 0x80)\r
338 sys_name = "Genesis";\r
339 }\r
340 tv_standard = Pico.m.pal ? "PAL" : "NTSC";\r
341 fps = Pico.m.pal ? 50 : 60;\r
342\r
343 emu_status_msg("%s %s / %dFPS%s", tv_standard, sys_name, fps, extra);\r
344}\r
345\r
346static void do_region_override(const char *media_fname)\r
347{\r
348 // we only need to override region if config tells us so\r
349 int ret = emu_read_config(media_fname, 0);\r
350 if (!ret) emu_read_config(NULL, 0);\r
351}\r
352\r
353int emu_reload_rom(const char *rom_fname_in)\r
354{\r
355 // use setting before rom config is loaded\r
356 int autoload = g_autostateld_opt;\r
357 char *rom_fname = NULL;\r
358 char ext[5];\r
359 enum media_type_e media_type;\r
360 int menu_romload_started = 0;\r
361 char carthw_path[512];\r
362 int retval = 0;\r
363\r
364 lprintf("emu_ReloadRom(%s)\n", rom_fname_in);\r
365\r
366 rom_fname = strdup(rom_fname_in);\r
367 if (rom_fname == NULL)\r
368 return 0;\r
369\r
370 get_ext(rom_fname, ext);\r
371\r
372 // early cleanup\r
373 PicoPatchUnload();\r
374 if (movie_data) {\r
375 free(movie_data);\r
376 movie_data = 0;\r
377 }\r
378\r
379 if (!strcmp(ext, ".gmv"))\r
380 {\r
381 // check for both gmv and rom\r
382 int dummy;\r
383 FILE *movie_file = fopen(rom_fname, "rb");\r
384 if (!movie_file) {\r
385 menu_update_msg("Failed to open movie.");\r
386 goto out;\r
387 }\r
388 fseek(movie_file, 0, SEEK_END);\r
389 movie_size = ftell(movie_file);\r
390 fseek(movie_file, 0, SEEK_SET);\r
391 if (movie_size < 64+3) {\r
392 menu_update_msg("Invalid GMV file.");\r
393 fclose(movie_file);\r
394 goto out;\r
395 }\r
396 movie_data = malloc(movie_size);\r
397 if (movie_data == NULL) {\r
398 menu_update_msg("low memory.");\r
399 fclose(movie_file);\r
400 goto out;\r
401 }\r
402 dummy = fread(movie_data, 1, movie_size, movie_file);\r
403 fclose(movie_file);\r
404 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
405 menu_update_msg("Invalid GMV file.");\r
406 goto out;\r
407 }\r
408 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
409 if (!dummy) {\r
410 menu_update_msg("Could't find a ROM for movie.");\r
411 goto out;\r
412 }\r
413 get_ext(rom_fname, ext);\r
414 lprintf("gmv loaded for %s\n", rom_fname);\r
415 }\r
416 else if (!strcmp(ext, ".pat"))\r
417 {\r
418 int dummy;\r
419 PicoPatchLoad(rom_fname);\r
420 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
421 if (!dummy) {\r
422 menu_update_msg("Could't find a ROM to patch.");\r
423 goto out;\r
424 }\r
425 get_ext(rom_fname, ext);\r
426 }\r
427\r
428 menu_romload_prepare(rom_fname); // also CD load\r
429 menu_romload_started = 1;\r
430\r
431 emu_make_path(carthw_path, "carthw.cfg", sizeof(carthw_path));\r
432\r
433 media_type = PicoLoadMedia(rom_fname, carthw_path,\r
434 find_bios, do_region_override);\r
435\r
436 switch (media_type) {\r
437 case PM_BAD_DETECT:\r
438 menu_update_msg("Not a ROM/CD img selected.");\r
439 goto out;\r
440 case PM_BAD_CD:\r
441 menu_update_msg("Invalid CD image");\r
442 goto out;\r
443 case PM_BAD_CD_NO_BIOS:\r
444 // find_bios() prints a message\r
445 goto out;\r
446 case PM_ERROR:\r
447 menu_update_msg("Load error");\r
448 goto out;\r
449 default:\r
450 break;\r
451 }\r
452\r
453 // make quirks visible in UI\r
454 if (PicoQuirks & PQUIRK_FORCE_6BTN)\r
455 currentConfig.input_dev0 = PICO_INPUT_PAD_6BTN;\r
456\r
457 menu_romload_end();\r
458 menu_romload_started = 0;\r
459\r
460 if (PicoPatches) {\r
461 PicoPatchPrepare();\r
462 PicoPatchApply();\r
463 }\r
464\r
465 // additional movie stuff\r
466 if (movie_data)\r
467 {\r
468 enum input_device indev = (movie_data[0x14] == '6') ?\r
469 PICO_INPUT_PAD_6BTN : PICO_INPUT_PAD_3BTN;\r
470 PicoSetInputDevice(0, indev);\r
471 PicoSetInputDevice(1, indev);\r
472\r
473 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
474 if (movie_data[0xF] >= 'A') {\r
475 if (movie_data[0x16] & 0x80) {\r
476 PicoRegionOverride = 8;\r
477 } else {\r
478 PicoRegionOverride = 4;\r
479 }\r
480 PicoReset();\r
481 // TODO: bits 6 & 5\r
482 }\r
483 movie_data[0x18+30] = 0;\r
484 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);\r
485 }\r
486 else\r
487 {\r
488 system_announce();\r
489 PicoOpt &= ~POPT_DIS_VDP_FIFO;\r
490 }\r
491\r
492 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);\r
493 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
494\r
495 // load SRAM for this ROM\r
496 if (currentConfig.EmuOpt & EOPT_EN_SRAM)\r
497 emu_save_load_game(1, 1);\r
498\r
499 // state autoload?\r
500 if (autoload) {\r
501 int time, newest = 0, newest_slot = -1;\r
502 int slot;\r
503\r
504 for (slot = 0; slot < 10; slot++) {\r
505 if (emu_check_save_file(slot, &time)) {\r
506 if (time > newest) {\r
507 newest = time;\r
508 newest_slot = slot;\r
509 }\r
510 }\r
511 }\r
512\r
513 if (newest_slot >= 0) {\r
514 lprintf("autoload slot %d\n", newest_slot);\r
515 state_slot = newest_slot;\r
516 emu_save_load_game(1, 0);\r
517 }\r
518 else {\r
519 lprintf("no save to autoload.\n");\r
520 }\r
521 }\r
522\r
523 retval = 1;\r
524out:\r
525 if (menu_romload_started)\r
526 menu_romload_end();\r
527 free(rom_fname);\r
528 return retval;\r
529}\r
530\r
531int emu_swap_cd(const char *fname)\r
532{\r
533 enum cd_img_type cd_type;\r
534 int ret = -1;\r
535\r
536 cd_type = PicoCdCheck(fname, NULL);\r
537 if (cd_type != CIT_NOT_CD)\r
538 ret = cdd_load(fname, cd_type);\r
539 if (ret != 0) {\r
540 menu_update_msg("Load failed, invalid CD image?");\r
541 return 0;\r
542 }\r
543\r
544 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);\r
545 rom_fname_loaded[sizeof(rom_fname_loaded) - 1] = 0;\r
546\r
547 return 1;\r
548}\r
549\r
550// <base dir><end>\r
551void emu_make_path(char *buff, const char *end, int size)\r
552{\r
553 int pos, end_len;\r
554\r
555 end_len = strlen(end);\r
556 pos = plat_get_root_dir(buff, size);\r
557 strncpy(buff + pos, end, size - pos);\r
558 buff[size - 1] = 0;\r
559 if (pos + end_len > size - 1)\r
560 lprintf("Warning: path truncated: %s\n", buff);\r
561}\r
562\r
563static void make_config_cfg(char *cfg_buff_512)\r
564{\r
565 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);\r
566 if (config_slot != 0)\r
567 {\r
568 char *p = strrchr(cfg_buff_512, '.');\r
569 if (p == NULL)\r
570 p = cfg_buff_512 + strlen(cfg_buff_512);\r
571 sprintf(p, ".%i.cfg", config_slot);\r
572 }\r
573 cfg_buff_512[511] = 0;\r
574}\r
575\r
576void emu_prep_defconfig(void)\r
577{\r
578 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
579 defaultConfig.EmuOpt = 0x9d | EOPT_EN_CD_LEDS;\r
580 defaultConfig.s_PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |\r
581 POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX |\r
582 POPT_EN_DRC|POPT_ACC_SPRITES |\r
583 POPT_EN_32X|POPT_EN_PWM;\r
584 defaultConfig.s_PsndRate = 44100;\r
585 defaultConfig.s_PicoRegion = 0; // auto\r
586 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
587 defaultConfig.s_PicoCDBuffers = 0;\r
588 defaultConfig.confirm_save = EOPT_CONFIRM_SAVE;\r
589 defaultConfig.Frameskip = -1; // auto\r
590 defaultConfig.input_dev0 = PICO_INPUT_PAD_3BTN;\r
591 defaultConfig.input_dev1 = PICO_INPUT_PAD_3BTN;\r
592 defaultConfig.volume = 50;\r
593 defaultConfig.gamma = 100;\r
594 defaultConfig.scaling = 0;\r
595 defaultConfig.turbo_rate = 15;\r
596 defaultConfig.msh2_khz = PICO_MSH2_HZ / 1000;\r
597 defaultConfig.ssh2_khz = PICO_SSH2_HZ / 1000;\r
598\r
599 // platform specific overrides\r
600 pemu_prep_defconfig();\r
601}\r
602\r
603void emu_set_defconfig(void)\r
604{\r
605 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
606 PicoOpt = currentConfig.s_PicoOpt;\r
607 PsndRate = currentConfig.s_PsndRate;\r
608 PicoRegionOverride = currentConfig.s_PicoRegion;\r
609 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
610}\r
611\r
612int emu_read_config(const char *rom_fname, int no_defaults)\r
613{\r
614 char cfg[512];\r
615 int ret;\r
616\r
617 if (!no_defaults)\r
618 emu_set_defconfig();\r
619\r
620 if (rom_fname == NULL)\r
621 {\r
622 // global config\r
623 make_config_cfg(cfg);\r
624 ret = config_readsect(cfg, NULL);\r
625 }\r
626 else\r
627 {\r
628 char ext[16];\r
629 int vol;\r
630\r
631 if (config_slot != 0)\r
632 snprintf(ext, sizeof(ext), ".%i.cfg", config_slot);\r
633 else\r
634 strcpy(ext, ".cfg");\r
635\r
636 fname_ext(cfg, sizeof(cfg), "cfg"PATH_SEP, ext, rom_fname);\r
637\r
638 // read user's config\r
639 vol = currentConfig.volume;\r
640 ret = config_readsect(cfg, NULL);\r
641 currentConfig.volume = vol; // make vol global (bah)\r
642\r
643 if (ret != 0)\r
644 {\r
645 // read global config, and apply game_def.cfg on top\r
646 make_config_cfg(cfg);\r
647 config_readsect(cfg, NULL);\r
648\r
649 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));\r
650 ret = config_readsect(cfg, emu_make_rom_id(rom_fname));\r
651 }\r
652 }\r
653\r
654 pemu_validate_config();\r
655\r
656 // some sanity checks\r
657#ifdef PSP\r
658 /* TODO: mv to plat_validate_config() */\r
659 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
660 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
661 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
662#endif\r
663 if (currentConfig.volume < 0 || currentConfig.volume > 99)\r
664 currentConfig.volume = 50;\r
665\r
666 if (ret == 0)\r
667 config_slot_current = config_slot;\r
668\r
669 return (ret == 0);\r
670}\r
671\r
672\r
673int emu_write_config(int is_game)\r
674{\r
675 char cfg[512];\r
676 int ret, write_lrom = 0;\r
677\r
678 if (!is_game)\r
679 {\r
680 make_config_cfg(cfg);\r
681 write_lrom = 1;\r
682 } else {\r
683 char ext[16];\r
684\r
685 if (config_slot != 0)\r
686 snprintf(ext, sizeof(ext), ".%i.cfg", config_slot);\r
687 else\r
688 strcpy(ext, ".cfg");\r
689\r
690 romfname_ext(cfg, sizeof(cfg), "cfg"PATH_SEP, ext);\r
691 }\r
692\r
693 lprintf("emu_write_config: %s ", cfg);\r
694 ret = config_write(cfg);\r
695 if (write_lrom) config_writelrom(cfg);\r
696#ifdef __GP2X__\r
697 sync();\r
698#endif\r
699 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
700\r
701 if (ret == 0) config_slot_current = config_slot;\r
702 return ret == 0;\r
703}\r
704\r
705\r
706/* always using built-in font */\r
707\r
708#define mk_text_out(name, type, val, topleft, step_x, step_y) \\r
709void name(int x, int y, const char *text) \\r
710{ \\r
711 int i, l, len = strlen(text); \\r
712 type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r
713 \\r
714 for (i = 0; i < len; i++, screen += 8 * step_x) \\r
715 { \\r
716 for (l = 0; l < 8; l++) \\r
717 { \\r
718 unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r
719 type *s = screen + l * step_y; \\r
720 if (fd&0x80) s[step_x * 0] = val; \\r
721 if (fd&0x40) s[step_x * 1] = val; \\r
722 if (fd&0x20) s[step_x * 2] = val; \\r
723 if (fd&0x10) s[step_x * 3] = val; \\r
724 if (fd&0x08) s[step_x * 4] = val; \\r
725 if (fd&0x04) s[step_x * 5] = val; \\r
726 if (fd&0x02) s[step_x * 6] = val; \\r
727 if (fd&0x01) s[step_x * 7] = val; \\r
728 } \\r
729 } \\r
730}\r
731\r
732mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r
733mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r
734mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r
735 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
736mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r
737 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
738\r
739#undef mk_text_out\r
740\r
741void emu_osd_text16(int x, int y, const char *text)\r
742{\r
743 int len = strlen(text) * 8;\r
744 int i, h;\r
745\r
746 len++;\r
747 if (x + len > g_screen_width)\r
748 len = g_screen_width - x;\r
749\r
750 for (h = 0; h < 8; h++) {\r
751 unsigned short *p;\r
752 p = (unsigned short *)g_screen_ptr\r
753 + x + g_screen_width * (y + h);\r
754 for (i = len; i > 0; i--, p++)\r
755 *p = (*p >> 2) & 0x39e7;\r
756 }\r
757 emu_text_out16(x, y, text);\r
758}\r
759\r
760static void update_movie(void)\r
761{\r
762 int offs = Pico.m.frame_count*3 + 0x40;\r
763 if (offs+3 > movie_size) {\r
764 free(movie_data);\r
765 movie_data = 0;\r
766 emu_status_msg("END OF MOVIE.");\r
767 lprintf("END OF MOVIE.\n");\r
768 } else {\r
769 // MXYZ SACB RLDU\r
770 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
771 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C\r
772 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A\r
773 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B\r
774 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
775 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C\r
776 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A\r
777 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B\r
778 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
779 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
780 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
781 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
782 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
783 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
784 }\r
785}\r
786\r
787static int try_ropen_file(const char *fname, int *time)\r
788{\r
789 struct stat st;\r
790 FILE *f;\r
791\r
792 f = fopen(fname, "rb");\r
793 if (f) {\r
794 if (time != NULL) {\r
795 *time = 0;\r
796 if (fstat(fileno(f), &st) == 0)\r
797 *time = (int)st.st_mtime;\r
798 }\r
799 fclose(f);\r
800 return 1;\r
801 }\r
802 return 0;\r
803}\r
804\r
805char *emu_get_save_fname(int load, int is_sram, int slot, int *time)\r
806{\r
807 char *saveFname = static_buff;\r
808 char ext[16];\r
809\r
810 if (is_sram)\r
811 {\r
812 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r
813 romfname_ext(saveFname, sizeof(static_buff),\r
814 (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);\r
815 if (!load)\r
816 return saveFname;\r
817\r
818 if (try_ropen_file(saveFname, time))\r
819 return saveFname;\r
820\r
821 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
822 if (try_ropen_file(saveFname, time))\r
823 return saveFname;\r
824 }\r
825 else\r
826 {\r
827 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";\r
828 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";\r
829 ext[0] = 0;\r
830 if (slot > 0 && slot < 10)\r
831 sprintf(ext, ".%i", slot);\r
832 strcat(ext, ext_main);\r
833\r
834 if (!load) {\r
835 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
836 return saveFname;\r
837 }\r
838 else {\r
839 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
840 if (try_ropen_file(saveFname, time))\r
841 return saveFname;\r
842\r
843 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
844 if (try_ropen_file(saveFname, time))\r
845 return saveFname;\r
846\r
847 // try the other ext\r
848 ext[0] = 0;\r
849 if (slot > 0 && slot < 10)\r
850 sprintf(ext, ".%i", slot);\r
851 strcat(ext, ext_othr);\r
852\r
853 romfname_ext(saveFname, sizeof(static_buff), "mds"PATH_SEP, ext);\r
854 if (try_ropen_file(saveFname, time))\r
855 return saveFname;\r
856 }\r
857 }\r
858\r
859 return NULL;\r
860}\r
861\r
862int emu_check_save_file(int slot, int *time)\r
863{\r
864 return emu_get_save_fname(1, 0, slot, time) ? 1 : 0;\r
865}\r
866\r
867int emu_save_load_game(int load, int sram)\r
868{\r
869 int ret = 0;\r
870 char *saveFname;\r
871\r
872 // make save filename\r
873 saveFname = emu_get_save_fname(load, sram, state_slot, NULL);\r
874 if (saveFname == NULL) {\r
875 if (!sram)\r
876 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r
877 return -1;\r
878 }\r
879\r
880 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
881\r
882 if (sram)\r
883 {\r
884 FILE *sramFile;\r
885 int sram_size;\r
886 unsigned char *sram_data;\r
887 int truncate = 1;\r
888 if (PicoAHW & PAHW_MCD)\r
889 {\r
890 if (PicoOpt & POPT_EN_MCD_RAMCART) {\r
891 sram_size = 0x12000;\r
892 sram_data = SRam.data;\r
893 if (sram_data)\r
894 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
895 } else {\r
896 sram_size = 0x2000;\r
897 sram_data = Pico_mcd->bram;\r
898 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
899 }\r
900 } else {\r
901 sram_size = SRam.size;\r
902 sram_data = SRam.data;\r
903 }\r
904 if (sram_data == NULL)\r
905 return 0; // SRam forcefully disabled for this game\r
906\r
907 if (load)\r
908 {\r
909 sramFile = fopen(saveFname, "rb");\r
910 if (!sramFile)\r
911 return -1;\r
912 ret = fread(sram_data, 1, sram_size, sramFile);\r
913 ret = ret > 0 ? 0 : -1;\r
914 fclose(sramFile);\r
915 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r
916 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
917 } else {\r
918 // sram save needs some special processing\r
919 // see if we have anything to save\r
920 for (; sram_size > 0; sram_size--)\r
921 if (sram_data[sram_size-1]) break;\r
922\r
923 if (sram_size) {\r
924 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
925 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
926 if (!sramFile) return -1;\r
927 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
928 ret = (ret != sram_size) ? -1 : 0;\r
929 fclose(sramFile);\r
930#ifdef __GP2X__\r
931 sync();\r
932#endif\r
933 }\r
934 }\r
935 return ret;\r
936 }\r
937 else\r
938 {\r
939 ret = PicoState(saveFname, !load);\r
940 if (!ret) {\r
941#ifdef __GP2X__\r
942 if (!load) sync();\r
943#endif\r
944 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");\r
945 } else {\r
946 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r
947 ret = -1;\r
948 }\r
949\r
950 return ret;\r
951 }\r
952}\r
953\r
954void emu_set_fastforward(int set_on)\r
955{\r
956 static void *set_PsndOut = NULL;\r
957 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
958\r
959 if (set_on && !is_on) {\r
960 set_PsndOut = PsndOut;\r
961 set_Frameskip = currentConfig.Frameskip;\r
962 set_EmuOpt = currentConfig.EmuOpt;\r
963 PsndOut = NULL;\r
964 currentConfig.Frameskip = 8;\r
965 currentConfig.EmuOpt &= ~4;\r
966 currentConfig.EmuOpt |= 0x40000;\r
967 is_on = 1;\r
968 emu_status_msg("FAST FORWARD");\r
969 }\r
970 else if (!set_on && is_on) {\r
971 PsndOut = set_PsndOut;\r
972 currentConfig.Frameskip = set_Frameskip;\r
973 currentConfig.EmuOpt = set_EmuOpt;\r
974 PsndRerate(1);\r
975 is_on = 0;\r
976 // mainly to unbreak pcm\r
977 if (PicoAHW & PAHW_MCD)\r
978 pcd_state_loaded();\r
979 }\r
980}\r
981\r
982static void emu_tray_open(void)\r
983{\r
984 engineState = PGS_TrayMenu;\r
985}\r
986\r
987static void emu_tray_close(void)\r
988{\r
989 emu_status_msg("CD tray closed.");\r
990}\r
991\r
992void emu_32x_startup(void)\r
993{\r
994 plat_video_toggle_renderer(0, 0); // HACK\r
995 system_announce();\r
996}\r
997\r
998void emu_reset_game(void)\r
999{\r
1000 PicoReset();\r
1001 reset_timing = 1;\r
1002}\r
1003\r
1004void run_events_pico(unsigned int events)\r
1005{\r
1006 int lim_x;\r
1007\r
1008 if (events & PEV_PICO_SWINP) {\r
1009 pico_inp_mode++;\r
1010 if (pico_inp_mode > 2)\r
1011 pico_inp_mode = 0;\r
1012 switch (pico_inp_mode) {\r
1013 case 2: emu_status_msg("Input: Pen on Pad"); break;\r
1014 case 1: emu_status_msg("Input: Pen on Storyware"); break;\r
1015 case 0: emu_status_msg("Input: Joystick");\r
1016 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
1017 break;\r
1018 }\r
1019 }\r
1020 if (events & PEV_PICO_PPREV) {\r
1021 PicoPicohw.page--;\r
1022 if (PicoPicohw.page < 0)\r
1023 PicoPicohw.page = 0;\r
1024 emu_status_msg("Page %i", PicoPicohw.page);\r
1025 }\r
1026 if (events & PEV_PICO_PNEXT) {\r
1027 PicoPicohw.page++;\r
1028 if (PicoPicohw.page > 6)\r
1029 PicoPicohw.page = 6;\r
1030 emu_status_msg("Page %i", PicoPicohw.page);\r
1031 }\r
1032\r
1033 if (pico_inp_mode == 0)\r
1034 return;\r
1035\r
1036 /* handle other input modes */\r
1037 if (PicoPad[0] & 1) pico_pen_y--;\r
1038 if (PicoPad[0] & 2) pico_pen_y++;\r
1039 if (PicoPad[0] & 4) pico_pen_x--;\r
1040 if (PicoPad[0] & 8) pico_pen_x++;\r
1041 PicoPad[0] &= ~0x0f; // release UDLR\r
1042\r
1043 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
1044 if (pico_pen_y < 8)\r
1045 pico_pen_y = 8;\r
1046 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r
1047 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r
1048 if (pico_pen_x < 0)\r
1049 pico_pen_x = 0;\r
1050 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r
1051 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r
1052\r
1053 PicoPicohw.pen_pos[0] = pico_pen_x;\r
1054 if (!(Pico.video.reg[12] & 1))\r
1055 PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r
1056 PicoPicohw.pen_pos[0] += 0x3c;\r
1057 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
1058}\r
1059\r
1060static void do_turbo(int *pad, int acts)\r
1061{\r
1062 static int turbo_pad = 0;\r
1063 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1064 int inc = currentConfig.turbo_rate * 2;\r
1065\r
1066 if (acts & 0x1000) {\r
1067 turbo_cnt[0] += inc;\r
1068 if (turbo_cnt[0] >= 60)\r
1069 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1070 }\r
1071 if (acts & 0x2000) {\r
1072 turbo_cnt[1] += inc;\r
1073 if (turbo_cnt[1] >= 60)\r
1074 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1075 }\r
1076 if (acts & 0x4000) {\r
1077 turbo_cnt[2] += inc;\r
1078 if (turbo_cnt[2] >= 60)\r
1079 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1080 }\r
1081 *pad |= turbo_pad & (acts >> 8);\r
1082}\r
1083\r
1084static void run_events_ui(unsigned int which)\r
1085{\r
1086 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r
1087 {\r
1088 int do_it = 1;\r
1089 if ( emu_check_save_file(state_slot, NULL) &&\r
1090 (((which & PEV_STATE_LOAD) && (currentConfig.confirm_save & EOPT_CONFIRM_LOAD)) ||\r
1091 ((which & PEV_STATE_SAVE) && (currentConfig.confirm_save & EOPT_CONFIRM_SAVE))) )\r
1092 {\r
1093 const char *nm;\r
1094 char tmp[64];\r
1095 int keys, len;\r
1096\r
1097 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE? " : "OVERWRITE SAVE? ");\r
1098 len = strlen(tmp);\r
1099 nm = in_get_key_name(-1, -PBTN_MOK);\r
1100 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
1101 len = strlen(tmp);\r
1102 nm = in_get_key_name(-1, -PBTN_MBACK);\r
1103 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
1104\r
1105 plat_status_msg_busy_first(tmp);\r
1106\r
1107 in_set_config_int(0, IN_CFG_BLOCKING, 1);\r
1108 while (in_menu_wait_any(NULL, 50) & (PBTN_MOK | PBTN_MBACK))\r
1109 ;\r
1110 while ( !((keys = in_menu_wait_any(NULL, 50)) & (PBTN_MOK | PBTN_MBACK)))\r
1111 ;\r
1112 if (keys & PBTN_MBACK)\r
1113 do_it = 0;\r
1114 while (in_menu_wait_any(NULL, 50) & (PBTN_MOK | PBTN_MBACK))\r
1115 ;\r
1116 in_set_config_int(0, IN_CFG_BLOCKING, 0);\r
1117 }\r
1118 if (do_it) {\r
1119 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");\r
1120 PicoStateProgressCB = plat_status_msg_busy_next;\r
1121 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r
1122 PicoStateProgressCB = NULL;\r
1123 }\r
1124 }\r
1125 if (which & PEV_SWITCH_RND)\r
1126 {\r
1127 plat_video_toggle_renderer(1, 0);\r
1128 }\r
1129 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r
1130 {\r
1131 if (which & PEV_SSLOT_PREV) {\r
1132 state_slot -= 1;\r
1133 if (state_slot < 0)\r
1134 state_slot = 9;\r
1135 } else {\r
1136 state_slot += 1;\r
1137 if (state_slot > 9)\r
1138 state_slot = 0;\r
1139 }\r
1140\r
1141 emu_status_msg("SAVE SLOT %i [%s]", state_slot,\r
1142 emu_check_save_file(state_slot, NULL) ? "USED" : "FREE");\r
1143 }\r
1144 if (which & PEV_RESET)\r
1145 emu_reset_game();\r
1146 if (which & PEV_MENU)\r
1147 engineState = PGS_Menu;\r
1148}\r
1149\r
1150void emu_update_input(void)\r
1151{\r
1152 static int prev_events = 0;\r
1153 int actions[IN_BINDTYPE_COUNT] = { 0, };\r
1154 int pl_actions[2];\r
1155 int events;\r
1156\r
1157 in_update(actions);\r
1158\r
1159 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r
1160 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r
1161\r
1162 PicoPad[0] = pl_actions[0] & 0xfff;\r
1163 PicoPad[1] = pl_actions[1] & 0xfff;\r
1164\r
1165 if (pl_actions[0] & 0x7000)\r
1166 do_turbo(&PicoPad[0], pl_actions[0]);\r
1167 if (pl_actions[1] & 0x7000)\r
1168 do_turbo(&PicoPad[1], pl_actions[1]);\r
1169\r
1170 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1171\r
1172 // volume is treated in special way and triggered every frame\r
1173 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r
1174 plat_update_volume(1, events & PEV_VOL_UP);\r
1175\r
1176 if ((events ^ prev_events) & PEV_FF) {\r
1177 emu_set_fastforward(events & PEV_FF);\r
1178 plat_update_volume(0, 0);\r
1179 reset_timing = 1;\r
1180 }\r
1181\r
1182 events &= ~prev_events;\r
1183\r
1184 if (PicoAHW == PAHW_PICO)\r
1185 run_events_pico(events);\r
1186 if (events)\r
1187 run_events_ui(events);\r
1188 if (movie_data)\r
1189 update_movie();\r
1190\r
1191 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1192}\r
1193\r
1194static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r
1195{\r
1196 strcpy(path_with_reserve + pos, name);\r
1197 if (plat_is_dir(path_with_reserve))\r
1198 return;\r
1199 if (mkdir(path_with_reserve, 0777) < 0)\r
1200 lprintf("failed to create: %s\n", path_with_reserve);\r
1201}\r
1202\r
1203void emu_cmn_forced_frame(int no_scale, int do_emu)\r
1204{\r
1205 int po_old = PicoOpt;\r
1206\r
1207 memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
1208\r
1209 PicoOpt &= ~POPT_ALT_RENDERER;\r
1210 PicoOpt |= POPT_ACC_SPRITES;\r
1211 if (!no_scale)\r
1212 PicoOpt |= POPT_EN_SOFTSCALE;\r
1213\r
1214 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
1215 Pico.m.dirtyPal = 1;\r
1216 if (do_emu)\r
1217 PicoFrame();\r
1218 else\r
1219 PicoFrameDrawOnly();\r
1220\r
1221 PicoOpt = po_old;\r
1222}\r
1223\r
1224void emu_init(void)\r
1225{\r
1226 char path[512];\r
1227 int pos;\r
1228\r
1229#if 0\r
1230 // FIXME: handle through menu, etc\r
1231 FILE *f;\r
1232 f = fopen("32X_M_BIOS.BIN", "rb");\r
1233 p32x_bios_m = malloc(2048);\r
1234 fread(p32x_bios_m, 1, 2048, f);\r
1235 fclose(f);\r
1236 f = fopen("32X_S_BIOS.BIN", "rb");\r
1237 p32x_bios_s = malloc(1024);\r
1238 fread(p32x_bios_s, 1, 1024, f);\r
1239 fclose(f);\r
1240#endif\r
1241\r
1242 /* make dirs for saves */\r
1243 pos = plat_get_root_dir(path, sizeof(path) - 4);\r
1244 mkdir_path(path, pos, "mds");\r
1245 mkdir_path(path, pos, "srm");\r
1246 mkdir_path(path, pos, "brm");\r
1247 mkdir_path(path, pos, "cfg");\r
1248\r
1249 pprof_init();\r
1250\r
1251 make_config_cfg(path);\r
1252 config_readlrom(path);\r
1253\r
1254 PicoInit();\r
1255 PicoMessage = plat_status_msg_busy_next;\r
1256 PicoMCDopenTray = emu_tray_open;\r
1257 PicoMCDcloseTray = emu_tray_close;\r
1258\r
1259 sndout_init();\r
1260}\r
1261\r
1262void emu_finish(void)\r
1263{\r
1264 // save SRAM\r
1265 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1266 emu_save_load_game(0, 1);\r
1267 SRam.changed = 0;\r
1268 }\r
1269\r
1270 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r
1271 char cfg[512];\r
1272 make_config_cfg(cfg);\r
1273 config_writelrom(cfg);\r
1274#ifdef __GP2X__\r
1275 sync();\r
1276#endif\r
1277 }\r
1278\r
1279 pprof_finish();\r
1280\r
1281 PicoExit();\r
1282 sndout_exit();\r
1283}\r
1284\r
1285static void snd_write_nonblocking(int len)\r
1286{\r
1287 sndout_write_nb(PsndOut, len);\r
1288}\r
1289\r
1290void emu_sound_start(void)\r
1291{\r
1292 PsndOut = NULL;\r
1293\r
1294 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
1295 {\r
1296 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
1297\r
1298 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
1299\r
1300 printf("starting audio: %i len: %i stereo: %i, pal: %i\n",\r
1301 PsndRate, PsndLen, is_stereo, Pico.m.pal);\r
1302 sndout_start(PsndRate, is_stereo);\r
1303 PicoWriteSound = snd_write_nonblocking;\r
1304 plat_update_volume(0, 0);\r
1305 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1306 PsndOut = sndBuffer;\r
1307 }\r
1308}\r
1309\r
1310void emu_sound_stop(void)\r
1311{\r
1312 sndout_stop();\r
1313}\r
1314\r
1315void emu_sound_wait(void)\r
1316{\r
1317 sndout_wait();\r
1318}\r
1319\r
1320static void emu_loop_prep(void)\r
1321{\r
1322 static int pal_old = -1;\r
1323 static int filter_old = -1;\r
1324\r
1325 if (currentConfig.CPUclock != plat_target_cpu_clock_get())\r
1326 plat_target_cpu_clock_set(currentConfig.CPUclock);\r
1327\r
1328 if (Pico.m.pal != pal_old) {\r
1329 plat_target_lcdrate_set(Pico.m.pal);\r
1330 pal_old = Pico.m.pal;\r
1331 }\r
1332\r
1333 if (currentConfig.filter != filter_old) {\r
1334 plat_target_hwfilter_set(currentConfig.filter);\r
1335 filter_old = currentConfig.filter;\r
1336 }\r
1337\r
1338 plat_target_gamma_set(currentConfig.gamma, 0);\r
1339\r
1340 pemu_loop_prep();\r
1341}\r
1342\r
1343/* our tick here is 1 us right now */\r
1344#define ms_to_ticks(x) (unsigned int)(x * 1000)\r
1345#define get_ticks() plat_get_ticks_us()\r
1346\r
1347void emu_loop(void)\r
1348{\r
1349 int frames_done, frames_shown; /* actual frames for fps counter */\r
1350 int target_frametime_x3;\r
1351 unsigned int timestamp_x3 = 0;\r
1352 unsigned int timestamp_aim_x3 = 0;\r
1353 unsigned int timestamp_fps_x3 = 0;\r
1354 char *notice_msg = NULL;\r
1355 char fpsbuff[24];\r
1356 int fskip_cnt = 0;\r
1357\r
1358 fpsbuff[0] = 0;\r
1359\r
1360 PicoLoopPrepare();\r
1361\r
1362 plat_video_loop_prepare();\r
1363 emu_loop_prep();\r
1364 pemu_sound_start();\r
1365\r
1366 /* number of ticks per frame */\r
1367 if (Pico.m.pal)\r
1368 target_frametime_x3 = 3 * ms_to_ticks(1000) / 50;\r
1369 else\r
1370 target_frametime_x3 = 3 * ms_to_ticks(1000) / 60;\r
1371\r
1372 reset_timing = 1;\r
1373 frames_done = frames_shown = 0;\r
1374\r
1375 /* loop with resync every 1 sec. */\r
1376 while (engineState == PGS_Running)\r
1377 {\r
1378 int skip = 0;\r
1379 int diff;\r
1380\r
1381 pprof_start(main);\r
1382\r
1383 if (reset_timing) {\r
1384 reset_timing = 0;\r
1385 plat_video_wait_vsync();\r
1386 timestamp_aim_x3 = get_ticks() * 3;\r
1387 timestamp_fps_x3 = timestamp_aim_x3;\r
1388 fskip_cnt = 0;\r
1389 }\r
1390 else if (currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) {\r
1391 timestamp_aim_x3 = get_ticks() * 3;\r
1392 }\r
1393\r
1394 timestamp_x3 = get_ticks() * 3;\r
1395\r
1396 // show notice_msg message?\r
1397 if (notice_msg_time != 0)\r
1398 {\r
1399 static int noticeMsgSum;\r
1400 if (timestamp_x3 - ms_to_ticks(notice_msg_time) * 3\r
1401 > ms_to_ticks(STATUS_MSG_TIMEOUT) * 3)\r
1402 {\r
1403 notice_msg_time = 0;\r
1404 plat_status_msg_clear();\r
1405 plat_video_flip();\r
1406 plat_status_msg_clear(); /* Do it again in case of double buffering */\r
1407 notice_msg = NULL;\r
1408 }\r
1409 else {\r
1410 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];\r
1411 if (sum != noticeMsgSum) {\r
1412 plat_status_msg_clear();\r
1413 noticeMsgSum = sum;\r
1414 }\r
1415 notice_msg = noticeMsg;\r
1416 }\r
1417 }\r
1418\r
1419 // second changed?\r
1420 if (timestamp_x3 - timestamp_fps_x3 >= ms_to_ticks(1000) * 3)\r
1421 {\r
1422#ifdef BENCHMARK\r
1423 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1424 if (++bench == 10) {\r
1425 bench = 0;\r
1426 bench_fps_s = bench_fps;\r
1427 bf[bfp++ & 3] = bench_fps;\r
1428 bench_fps = 0;\r
1429 }\r
1430 bench_fps += frames_shown;\r
1431 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1432 printf("%s\n", fpsbuff);\r
1433#else\r
1434 if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r
1435 snprintf(fpsbuff, 8, "%02i/%02i ", frames_shown, frames_done);\r
1436#endif\r
1437 frames_shown = frames_done = 0;\r
1438 timestamp_fps_x3 += ms_to_ticks(1000) * 3;\r
1439 }\r
1440#ifdef PFRAMES\r
1441 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
1442#endif\r
1443\r
1444 diff = timestamp_aim_x3 - timestamp_x3;\r
1445\r
1446 if (currentConfig.Frameskip >= 0) // frameskip enabled (or 0)\r
1447 {\r
1448 if (fskip_cnt < currentConfig.Frameskip) {\r
1449 fskip_cnt++;\r
1450 skip = 1;\r
1451 }\r
1452 else {\r
1453 fskip_cnt = 0;\r
1454 }\r
1455 }\r
1456 else if (diff < -target_frametime_x3)\r
1457 {\r
1458 /* no time left for this frame - skip */\r
1459 /* limit auto frameskip to 8 */\r
1460 if (frames_done / 8 <= frames_shown)\r
1461 skip = 1;\r
1462 }\r
1463\r
1464 // don't go in debt too much\r
1465 while (diff < -target_frametime_x3 * 3) {\r
1466 timestamp_aim_x3 += target_frametime_x3;\r
1467 diff = timestamp_aim_x3 - timestamp_x3;\r
1468 }\r
1469\r
1470 emu_update_input();\r
1471 if (skip) {\r
1472 int do_audio = diff > -target_frametime_x3 * 2;\r
1473 PicoSkipFrame = do_audio ? 1 : 2;\r
1474 PicoFrame();\r
1475 PicoSkipFrame = 0;\r
1476 }\r
1477 else {\r
1478 PicoFrame();\r
1479 pemu_finalize_frame(fpsbuff, notice_msg);\r
1480 frames_shown++;\r
1481 }\r
1482 frames_done++;\r
1483 timestamp_aim_x3 += target_frametime_x3;\r
1484\r
1485 if (!skip && !flip_after_sync)\r
1486 plat_video_flip();\r
1487\r
1488 /* frame limiter */\r
1489 if (!skip && !reset_timing\r
1490 && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT)))\r
1491 {\r
1492 unsigned int timestamp = get_ticks();\r
1493 diff = timestamp_aim_x3 - timestamp * 3;\r
1494\r
1495 // sleep or vsync if we are still too fast\r
1496 if (diff > target_frametime_x3 && (currentConfig.EmuOpt & EOPT_VSYNC)) {\r
1497 // we are too fast\r
1498 plat_video_wait_vsync();\r
1499 timestamp = get_ticks();\r
1500 diff = timestamp * 3 - timestamp_aim_x3;\r
1501 }\r
1502 if (diff > target_frametime_x3) {\r
1503 // still too fast\r
1504 plat_wait_till_us(timestamp + (diff - target_frametime_x3) / 3);\r
1505 }\r
1506 }\r
1507\r
1508 if (!skip && flip_after_sync)\r
1509 plat_video_flip();\r
1510\r
1511 pprof_end(main);\r
1512 }\r
1513\r
1514 emu_set_fastforward(0);\r
1515\r
1516 // save SRAM\r
1517 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1518 plat_status_msg_busy_first("Writing SRAM/BRAM...");\r
1519 emu_save_load_game(0, 1);\r
1520 SRam.changed = 0;\r
1521 }\r
1522\r
1523 pemu_loop_end();\r
1524 emu_sound_stop();\r
1525}\r
fast MegaDrive/MegaCD/32X emulator