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release 1.85
[picodrive.git] / platform / common / emu.c
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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_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303", "bios_CD_U"\r
155};\r
156static const char * const biosfiles_eu[] = {\r
157 "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303", "bios_CD_E"\r
158};\r
159static const char * const biosfiles_jp[] = {\r
160 "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_MCD) {\r
326 sys_name = "Mega CD";\r
327 if ((Pico.m.hardware & 0xc0) == 0x80)\r
328 sys_name = "Sega CD";\r
329 } else if (PicoAHW & PAHW_32X) {\r
330 sys_name = "32X";\r
331 } else {\r
332 sys_name = "MegaDrive";\r
333 if ((Pico.m.hardware & 0xc0) == 0x80)\r
334 sys_name = "Genesis";\r
335 }\r
336 tv_standard = Pico.m.pal ? "PAL" : "NTSC";\r
337 fps = Pico.m.pal ? 50 : 60;\r
338\r
339 emu_status_msg("%s %s / %dFPS%s", tv_standard, sys_name, fps, extra);\r
340}\r
341\r
342static void do_region_override(const char *media_fname)\r
343{\r
344 // we only need to override region if config tells us so\r
345 int ret = emu_read_config(media_fname, 0);\r
346 if (!ret) emu_read_config(NULL, 0);\r
347}\r
348\r
349int emu_reload_rom(const char *rom_fname_in)\r
350{\r
351 // use setting before rom config is loaded\r
352 int autoload = g_autostateld_opt;\r
353 char *rom_fname = NULL;\r
354 char ext[5];\r
355 enum media_type_e media_type;\r
356 int menu_romload_started = 0;\r
357 char carthw_path[512];\r
358 int retval = 0;\r
359\r
360 lprintf("emu_ReloadRom(%s)\n", rom_fname_in);\r
361\r
362 rom_fname = strdup(rom_fname_in);\r
363 if (rom_fname == NULL)\r
364 return 0;\r
365\r
366 get_ext(rom_fname, ext);\r
367\r
368 // early cleanup\r
369 PicoPatchUnload();\r
370 if (movie_data) {\r
371 free(movie_data);\r
372 movie_data = 0;\r
373 }\r
374\r
375 if (!strcmp(ext, ".gmv"))\r
376 {\r
377 // check for both gmv and rom\r
378 int dummy;\r
379 FILE *movie_file = fopen(rom_fname, "rb");\r
380 if (!movie_file) {\r
381 menu_update_msg("Failed to open movie.");\r
382 goto out;\r
383 }\r
384 fseek(movie_file, 0, SEEK_END);\r
385 movie_size = ftell(movie_file);\r
386 fseek(movie_file, 0, SEEK_SET);\r
387 if (movie_size < 64+3) {\r
388 menu_update_msg("Invalid GMV file.");\r
389 fclose(movie_file);\r
390 goto out;\r
391 }\r
392 movie_data = malloc(movie_size);\r
393 if (movie_data == NULL) {\r
394 menu_update_msg("low memory.");\r
395 fclose(movie_file);\r
396 goto out;\r
397 }\r
398 dummy = fread(movie_data, 1, movie_size, movie_file);\r
399 fclose(movie_file);\r
400 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
401 menu_update_msg("Invalid GMV file.");\r
402 goto out;\r
403 }\r
404 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
405 if (!dummy) {\r
406 menu_update_msg("Could't find a ROM for movie.");\r
407 goto out;\r
408 }\r
409 get_ext(rom_fname, ext);\r
410 lprintf("gmv loaded for %s\n", rom_fname);\r
411 }\r
412 else if (!strcmp(ext, ".pat"))\r
413 {\r
414 int dummy;\r
415 PicoPatchLoad(rom_fname);\r
416 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
417 if (!dummy) {\r
418 menu_update_msg("Could't find a ROM to patch.");\r
419 goto out;\r
420 }\r
421 get_ext(rom_fname, ext);\r
422 }\r
423\r
424 menu_romload_prepare(rom_fname); // also CD load\r
425 menu_romload_started = 1;\r
426\r
427 emu_make_path(carthw_path, "carthw.cfg", sizeof(carthw_path));\r
428\r
429 media_type = PicoLoadMedia(rom_fname, carthw_path,\r
430 find_bios, do_region_override);\r
431\r
432 switch (media_type) {\r
433 case PM_BAD_DETECT:\r
434 menu_update_msg("Not a ROM/CD img selected.");\r
435 goto out;\r
436 case PM_BAD_CD:\r
437 menu_update_msg("Invalid CD image");\r
438 goto out;\r
439 case PM_BAD_CD_NO_BIOS:\r
440 // find_bios() prints a message\r
441 goto out;\r
442 case PM_ERROR:\r
443 menu_update_msg("Load error");\r
444 goto out;\r
445 default:\r
446 break;\r
447 }\r
448\r
449 // make quirks visible in UI\r
450 if (PicoQuirks & PQUIRK_FORCE_6BTN)\r
451 currentConfig.input_dev0 = PICO_INPUT_PAD_6BTN;\r
452\r
453 menu_romload_end();\r
454 menu_romload_started = 0;\r
455\r
456 if (PicoPatches) {\r
457 PicoPatchPrepare();\r
458 PicoPatchApply();\r
459 }\r
460\r
461 // additional movie stuff\r
462 if (movie_data)\r
463 {\r
464 enum input_device indev = (movie_data[0x14] == '6') ?\r
465 PICO_INPUT_PAD_6BTN : PICO_INPUT_PAD_3BTN;\r
466 PicoSetInputDevice(0, indev);\r
467 PicoSetInputDevice(1, indev);\r
468\r
469 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
470 if (movie_data[0xF] >= 'A') {\r
471 if (movie_data[0x16] & 0x80) {\r
472 PicoRegionOverride = 8;\r
473 } else {\r
474 PicoRegionOverride = 4;\r
475 }\r
476 PicoReset();\r
477 // TODO: bits 6 & 5\r
478 }\r
479 movie_data[0x18+30] = 0;\r
480 emu_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);\r
481 }\r
482 else\r
483 {\r
484 system_announce();\r
485 PicoOpt &= ~POPT_DIS_VDP_FIFO;\r
486 }\r
487\r
488 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);\r
489 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
490\r
491 // load SRAM for this ROM\r
492 if (currentConfig.EmuOpt & EOPT_EN_SRAM)\r
493 emu_save_load_game(1, 1);\r
494\r
495 // state autoload?\r
496 if (autoload) {\r
497 int time, newest = 0, newest_slot = -1;\r
498 int slot;\r
499\r
500 for (slot = 0; slot < 10; slot++) {\r
501 if (emu_check_save_file(slot, &time)) {\r
502 if (time > newest) {\r
503 newest = time;\r
504 newest_slot = slot;\r
505 }\r
506 }\r
507 }\r
508\r
509 if (newest_slot >= 0) {\r
510 lprintf("autoload slot %d\n", newest_slot);\r
511 state_slot = newest_slot;\r
512 emu_save_load_game(1, 0);\r
513 }\r
514 else {\r
515 lprintf("no save to autoload.\n");\r
516 }\r
517 }\r
518\r
519 retval = 1;\r
520out:\r
521 if (menu_romload_started)\r
522 menu_romload_end();\r
523 free(rom_fname);\r
524 return retval;\r
525}\r
526\r
527int emu_swap_cd(const char *fname)\r
528{\r
529 cd_img_type cd_type;\r
530 int ret = -1;\r
531\r
532 cd_type = PicoCdCheck(fname, NULL);\r
533 if (cd_type != CIT_NOT_CD)\r
534 ret = Insert_CD(fname, cd_type);\r
535 if (ret != 0) {\r
536 menu_update_msg("Load failed, invalid CD image?");\r
537 return 0;\r
538 }\r
539\r
540 strncpy(rom_fname_loaded, fname, sizeof(rom_fname_loaded)-1);\r
541 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
542 return 1;\r
543}\r
544\r
545// <base dir><end>\r
546void emu_make_path(char *buff, const char *end, int size)\r
547{\r
548 int pos, end_len;\r
549\r
550 end_len = strlen(end);\r
551 pos = plat_get_root_dir(buff, size);\r
552 strncpy(buff + pos, end, size - pos);\r
553 buff[size - 1] = 0;\r
554 if (pos + end_len > size - 1)\r
555 lprintf("Warning: path truncated: %s\n", buff);\r
556}\r
557\r
558static void make_config_cfg(char *cfg_buff_512)\r
559{\r
560 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);\r
561 if (config_slot != 0)\r
562 {\r
563 char *p = strrchr(cfg_buff_512, '.');\r
564 if (p == NULL)\r
565 p = cfg_buff_512 + strlen(cfg_buff_512);\r
566 sprintf(p, ".%i.cfg", config_slot);\r
567 }\r
568 cfg_buff_512[511] = 0;\r
569}\r
570\r
571void emu_prep_defconfig(void)\r
572{\r
573 memset(&defaultConfig, 0, sizeof(defaultConfig));\r
574 defaultConfig.EmuOpt = 0x9d | EOPT_EN_CD_LEDS;\r
575 defaultConfig.s_PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80 |\r
576 POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX |\r
577 POPT_EN_DRC|POPT_ACC_SPRITES |\r
578 POPT_EN_32X|POPT_EN_PWM;\r
579 defaultConfig.s_PsndRate = 44100;\r
580 defaultConfig.s_PicoRegion = 0; // auto\r
581 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
582 defaultConfig.s_PicoCDBuffers = 0;\r
583 defaultConfig.confirm_save = EOPT_CONFIRM_SAVE;\r
584 defaultConfig.Frameskip = -1; // auto\r
585 defaultConfig.input_dev0 = PICO_INPUT_PAD_3BTN;\r
586 defaultConfig.input_dev1 = PICO_INPUT_PAD_3BTN;\r
587 defaultConfig.volume = 50;\r
588 defaultConfig.gamma = 100;\r
589 defaultConfig.scaling = 0;\r
590 defaultConfig.turbo_rate = 15;\r
591 defaultConfig.msh2_khz = PICO_MSH2_HZ / 1000;\r
592 defaultConfig.ssh2_khz = PICO_SSH2_HZ / 1000;\r
593\r
594 // platform specific overrides\r
595 pemu_prep_defconfig();\r
596}\r
597\r
598void emu_set_defconfig(void)\r
599{\r
600 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
601 PicoOpt = currentConfig.s_PicoOpt;\r
602 PsndRate = currentConfig.s_PsndRate;\r
603 PicoRegionOverride = currentConfig.s_PicoRegion;\r
604 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
605 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
606}\r
607\r
608int emu_read_config(const char *rom_fname, int no_defaults)\r
609{\r
610 char cfg[512];\r
611 int ret;\r
612\r
613 if (!no_defaults)\r
614 emu_set_defconfig();\r
615\r
616 if (rom_fname == NULL)\r
617 {\r
618 // global config\r
619 make_config_cfg(cfg);\r
620 ret = config_readsect(cfg, NULL);\r
621 }\r
622 else\r
623 {\r
624 char ext[16];\r
625 int vol;\r
626\r
627 if (config_slot != 0)\r
628 snprintf(ext, sizeof(ext), ".%i.cfg", config_slot);\r
629 else\r
630 strcpy(ext, ".cfg");\r
631\r
632 fname_ext(cfg, sizeof(cfg), "cfg"PATH_SEP, ext, rom_fname);\r
633\r
634 // read user's config\r
635 vol = currentConfig.volume;\r
636 ret = config_readsect(cfg, NULL);\r
637 currentConfig.volume = vol; // make vol global (bah)\r
638\r
639 if (ret != 0)\r
640 {\r
641 // read global config, and apply game_def.cfg on top\r
642 make_config_cfg(cfg);\r
643 config_readsect(cfg, NULL);\r
644\r
645 emu_make_path(cfg, "game_def.cfg", sizeof(cfg));\r
646 ret = config_readsect(cfg, emu_make_rom_id(rom_fname));\r
647 }\r
648 }\r
649\r
650 pemu_validate_config();\r
651\r
652 // some sanity checks\r
653#ifdef PSP\r
654 /* TODO: mv to plat_validate_config() */\r
655 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
656 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
657 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
658#endif\r
659 if (currentConfig.volume < 0 || currentConfig.volume > 99)\r
660 currentConfig.volume = 50;\r
661\r
662 if (ret == 0)\r
663 config_slot_current = config_slot;\r
664\r
665 return (ret == 0);\r
666}\r
667\r
668\r
669int emu_write_config(int is_game)\r
670{\r
671 char cfg[512];\r
672 int ret, write_lrom = 0;\r
673\r
674 if (!is_game)\r
675 {\r
676 make_config_cfg(cfg);\r
677 write_lrom = 1;\r
678 } else {\r
679 char ext[16];\r
680\r
681 if (config_slot != 0)\r
682 snprintf(ext, sizeof(ext), ".%i.cfg", config_slot);\r
683 else\r
684 strcpy(ext, ".cfg");\r
685\r
686 romfname_ext(cfg, sizeof(cfg), "cfg"PATH_SEP, ext);\r
687 }\r
688\r
689 lprintf("emu_write_config: %s ", cfg);\r
690 ret = config_write(cfg);\r
691 if (write_lrom) config_writelrom(cfg);\r
692#ifdef __GP2X__\r
693 sync();\r
694#endif\r
695 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
696\r
697 if (ret == 0) config_slot_current = config_slot;\r
698 return ret == 0;\r
699}\r
700\r
701\r
702/* always using built-in font */\r
703\r
704#define mk_text_out(name, type, val, topleft, step_x, step_y) \\r
705void name(int x, int y, const char *text) \\r
706{ \\r
707 int i, l, len = strlen(text); \\r
708 type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r
709 \\r
710 for (i = 0; i < len; i++, screen += 8 * step_x) \\r
711 { \\r
712 for (l = 0; l < 8; l++) \\r
713 { \\r
714 unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r
715 type *s = screen + l * step_y; \\r
716 if (fd&0x80) s[step_x * 0] = val; \\r
717 if (fd&0x40) s[step_x * 1] = val; \\r
718 if (fd&0x20) s[step_x * 2] = val; \\r
719 if (fd&0x10) s[step_x * 3] = val; \\r
720 if (fd&0x08) s[step_x * 4] = val; \\r
721 if (fd&0x04) s[step_x * 5] = val; \\r
722 if (fd&0x02) s[step_x * 6] = val; \\r
723 if (fd&0x01) s[step_x * 7] = val; \\r
724 } \\r
725 } \\r
726}\r
727\r
728mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r
729mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r
730mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r
731 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
732mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r
733 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
734\r
735#undef mk_text_out\r
736\r
737\r
738void update_movie(void)\r
739{\r
740 int offs = Pico.m.frame_count*3 + 0x40;\r
741 if (offs+3 > movie_size) {\r
742 free(movie_data);\r
743 movie_data = 0;\r
744 emu_status_msg("END OF MOVIE.");\r
745 lprintf("END OF MOVIE.\n");\r
746 } else {\r
747 // MXYZ SACB RLDU\r
748 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
749 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C\r
750 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A\r
751 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B\r
752 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
753 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C\r
754 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A\r
755 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B\r
756 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
757 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
758 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
759 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
760 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
761 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
762 }\r
763}\r
764\r
765static int try_ropen_file(const char *fname, int *time)\r
766{\r
767 struct stat st;\r
768 FILE *f;\r
769\r
770 f = fopen(fname, "rb");\r
771 if (f) {\r
772 if (time != NULL) {\r
773 *time = 0;\r
774 if (fstat(fileno(f), &st) == 0)\r
775 *time = (int)st.st_mtime;\r
776 }\r
777 fclose(f);\r
778 return 1;\r
779 }\r
780 return 0;\r
781}\r
782\r
783char *emu_get_save_fname(int load, int is_sram, int slot, int *time)\r
784{\r
785 char *saveFname = static_buff;\r
786 char ext[16];\r
787\r
788 if (is_sram)\r
789 {\r
790 strcpy(ext, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r
791 romfname_ext(saveFname, sizeof(static_buff),\r
792 (PicoAHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);\r
793 if (!load)\r
794 return saveFname;\r
795\r
796 if (try_ropen_file(saveFname, time))\r
797 return saveFname;\r
798\r
799 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
800 if (try_ropen_file(saveFname, time))\r
801 return saveFname;\r
802 }\r
803 else\r
804 {\r
805 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";\r
806 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";\r
807 ext[0] = 0;\r
808 if (slot > 0 && slot < 10)\r
809 sprintf(ext, ".%i", slot);\r
810 strcat(ext, ext_main);\r
811\r
812 if (!load) {\r
813 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
814 return saveFname;\r
815 }\r
816 else {\r
817 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\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 // try the other ext\r
826 ext[0] = 0;\r
827 if (slot > 0 && slot < 10)\r
828 sprintf(ext, ".%i", slot);\r
829 strcat(ext, ext_othr);\r
830\r
831 romfname_ext(saveFname, sizeof(static_buff), "mds"PATH_SEP, ext);\r
832 if (try_ropen_file(saveFname, time))\r
833 return saveFname;\r
834 }\r
835 }\r
836\r
837 return NULL;\r
838}\r
839\r
840int emu_check_save_file(int slot, int *time)\r
841{\r
842 return emu_get_save_fname(1, 0, slot, time) ? 1 : 0;\r
843}\r
844\r
845int emu_save_load_game(int load, int sram)\r
846{\r
847 int ret = 0;\r
848 char *saveFname;\r
849\r
850 // make save filename\r
851 saveFname = emu_get_save_fname(load, sram, state_slot, NULL);\r
852 if (saveFname == NULL) {\r
853 if (!sram)\r
854 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r
855 return -1;\r
856 }\r
857\r
858 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
859\r
860 if (sram)\r
861 {\r
862 FILE *sramFile;\r
863 int sram_size;\r
864 unsigned char *sram_data;\r
865 int truncate = 1;\r
866 if (PicoAHW & PAHW_MCD)\r
867 {\r
868 if (PicoOpt & POPT_EN_MCD_RAMCART) {\r
869 sram_size = 0x12000;\r
870 sram_data = SRam.data;\r
871 if (sram_data)\r
872 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
873 } else {\r
874 sram_size = 0x2000;\r
875 sram_data = Pico_mcd->bram;\r
876 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
877 }\r
878 } else {\r
879 sram_size = SRam.size;\r
880 sram_data = SRam.data;\r
881 }\r
882 if (sram_data == NULL)\r
883 return 0; // SRam forcefully disabled for this game\r
884\r
885 if (load)\r
886 {\r
887 sramFile = fopen(saveFname, "rb");\r
888 if (!sramFile)\r
889 return -1;\r
890 ret = fread(sram_data, 1, sram_size, sramFile);\r
891 ret = ret > 0 ? 0 : -1;\r
892 fclose(sramFile);\r
893 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r
894 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
895 } else {\r
896 // sram save needs some special processing\r
897 // see if we have anything to save\r
898 for (; sram_size > 0; sram_size--)\r
899 if (sram_data[sram_size-1]) break;\r
900\r
901 if (sram_size) {\r
902 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
903 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
904 if (!sramFile) return -1;\r
905 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
906 ret = (ret != sram_size) ? -1 : 0;\r
907 fclose(sramFile);\r
908#ifdef __GP2X__\r
909 sync();\r
910#endif\r
911 }\r
912 }\r
913 return ret;\r
914 }\r
915 else\r
916 {\r
917 ret = PicoState(saveFname, !load);\r
918 if (!ret) {\r
919#ifdef __GP2X__\r
920 if (!load) sync();\r
921#endif\r
922 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");\r
923 } else {\r
924 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r
925 ret = -1;\r
926 }\r
927\r
928 return ret;\r
929 }\r
930}\r
931\r
932void emu_set_fastforward(int set_on)\r
933{\r
934 static void *set_PsndOut = NULL;\r
935 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
936\r
937 if (set_on && !is_on) {\r
938 set_PsndOut = PsndOut;\r
939 set_Frameskip = currentConfig.Frameskip;\r
940 set_EmuOpt = currentConfig.EmuOpt;\r
941 PsndOut = NULL;\r
942 currentConfig.Frameskip = 8;\r
943 currentConfig.EmuOpt &= ~4;\r
944 currentConfig.EmuOpt |= 0x40000;\r
945 is_on = 1;\r
946 emu_status_msg("FAST FORWARD");\r
947 }\r
948 else if (!set_on && is_on) {\r
949 PsndOut = set_PsndOut;\r
950 currentConfig.Frameskip = set_Frameskip;\r
951 currentConfig.EmuOpt = set_EmuOpt;\r
952 PsndRerate(1);\r
953 is_on = 0;\r
954 }\r
955}\r
956\r
957static void emu_tray_open(void)\r
958{\r
959 engineState = PGS_TrayMenu;\r
960}\r
961\r
962static void emu_tray_close(void)\r
963{\r
964 emu_status_msg("CD tray closed.");\r
965}\r
966\r
967void emu_32x_startup(void)\r
968{\r
969 plat_video_toggle_renderer(0, 0); // HACK\r
970 system_announce();\r
971}\r
972\r
973void emu_reset_game(void)\r
974{\r
975 PicoReset();\r
976 reset_timing = 1;\r
977}\r
978\r
979void run_events_pico(unsigned int events)\r
980{\r
981 int lim_x;\r
982\r
983 if (events & PEV_PICO_SWINP) {\r
984 pico_inp_mode++;\r
985 if (pico_inp_mode > 2)\r
986 pico_inp_mode = 0;\r
987 switch (pico_inp_mode) {\r
988 case 2: emu_status_msg("Input: Pen on Pad"); break;\r
989 case 1: emu_status_msg("Input: Pen on Storyware"); break;\r
990 case 0: emu_status_msg("Input: Joystick");\r
991 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
992 break;\r
993 }\r
994 }\r
995 if (events & PEV_PICO_PPREV) {\r
996 PicoPicohw.page--;\r
997 if (PicoPicohw.page < 0)\r
998 PicoPicohw.page = 0;\r
999 emu_status_msg("Page %i", PicoPicohw.page);\r
1000 }\r
1001 if (events & PEV_PICO_PNEXT) {\r
1002 PicoPicohw.page++;\r
1003 if (PicoPicohw.page > 6)\r
1004 PicoPicohw.page = 6;\r
1005 emu_status_msg("Page %i", PicoPicohw.page);\r
1006 }\r
1007\r
1008 if (pico_inp_mode == 0)\r
1009 return;\r
1010\r
1011 /* handle other input modes */\r
1012 if (PicoPad[0] & 1) pico_pen_y--;\r
1013 if (PicoPad[0] & 2) pico_pen_y++;\r
1014 if (PicoPad[0] & 4) pico_pen_x--;\r
1015 if (PicoPad[0] & 8) pico_pen_x++;\r
1016 PicoPad[0] &= ~0x0f; // release UDLR\r
1017\r
1018 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
1019 if (pico_pen_y < 8)\r
1020 pico_pen_y = 8;\r
1021 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r
1022 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r
1023 if (pico_pen_x < 0)\r
1024 pico_pen_x = 0;\r
1025 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r
1026 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r
1027\r
1028 PicoPicohw.pen_pos[0] = pico_pen_x;\r
1029 if (!(Pico.video.reg[12] & 1))\r
1030 PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r
1031 PicoPicohw.pen_pos[0] += 0x3c;\r
1032 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
1033}\r
1034\r
1035static void do_turbo(int *pad, int acts)\r
1036{\r
1037 static int turbo_pad = 0;\r
1038 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1039 int inc = currentConfig.turbo_rate * 2;\r
1040\r
1041 if (acts & 0x1000) {\r
1042 turbo_cnt[0] += inc;\r
1043 if (turbo_cnt[0] >= 60)\r
1044 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1045 }\r
1046 if (acts & 0x2000) {\r
1047 turbo_cnt[1] += inc;\r
1048 if (turbo_cnt[1] >= 60)\r
1049 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1050 }\r
1051 if (acts & 0x4000) {\r
1052 turbo_cnt[2] += inc;\r
1053 if (turbo_cnt[2] >= 60)\r
1054 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1055 }\r
1056 *pad |= turbo_pad & (acts >> 8);\r
1057}\r
1058\r
1059static void run_events_ui(unsigned int which)\r
1060{\r
1061 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r
1062 {\r
1063 int do_it = 1;\r
1064 if ( emu_check_save_file(state_slot, NULL) &&\r
1065 (((which & PEV_STATE_LOAD) && (currentConfig.confirm_save & EOPT_CONFIRM_LOAD)) ||\r
1066 ((which & PEV_STATE_SAVE) && (currentConfig.confirm_save & EOPT_CONFIRM_SAVE))) )\r
1067 {\r
1068 const char *nm;\r
1069 char tmp[64];\r
1070 int keys, len;\r
1071\r
1072 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");\r
1073 len = strlen(tmp);\r
1074 nm = in_get_key_name(-1, -PBTN_MA3);\r
1075 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
1076 len = strlen(tmp);\r
1077 nm = in_get_key_name(-1, -PBTN_MBACK);\r
1078 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
1079\r
1080 plat_status_msg_busy_first(tmp);\r
1081\r
1082 in_set_config_int(0, IN_CFG_BLOCKING, 1);\r
1083 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))\r
1084 ;\r
1085 while ( !((keys = in_menu_wait_any(NULL, 50)) & (PBTN_MA3|PBTN_MBACK)) )\r
1086 ;\r
1087 if (keys & PBTN_MBACK)\r
1088 do_it = 0;\r
1089 while (in_menu_wait_any(NULL, 50) & (PBTN_MA3|PBTN_MBACK))\r
1090 ;\r
1091 in_set_config_int(0, IN_CFG_BLOCKING, 0);\r
1092 }\r
1093 if (do_it) {\r
1094 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");\r
1095 PicoStateProgressCB = plat_status_msg_busy_next;\r
1096 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r
1097 PicoStateProgressCB = NULL;\r
1098 }\r
1099 }\r
1100 if (which & PEV_SWITCH_RND)\r
1101 {\r
1102 plat_video_toggle_renderer(1, 0);\r
1103 }\r
1104 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r
1105 {\r
1106 if (which & PEV_SSLOT_PREV) {\r
1107 state_slot -= 1;\r
1108 if (state_slot < 0)\r
1109 state_slot = 9;\r
1110 } else {\r
1111 state_slot += 1;\r
1112 if (state_slot > 9)\r
1113 state_slot = 0;\r
1114 }\r
1115\r
1116 emu_status_msg("SAVE SLOT %i [%s]", state_slot,\r
1117 emu_check_save_file(state_slot, NULL) ? "USED" : "FREE");\r
1118 }\r
1119 if (which & PEV_MENU)\r
1120 engineState = PGS_Menu;\r
1121}\r
1122\r
1123void emu_update_input(void)\r
1124{\r
1125 static int prev_events = 0;\r
1126 int actions[IN_BINDTYPE_COUNT] = { 0, };\r
1127 int pl_actions[2];\r
1128 int events;\r
1129\r
1130 in_update(actions);\r
1131\r
1132 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r
1133 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r
1134\r
1135 PicoPad[0] = pl_actions[0] & 0xfff;\r
1136 PicoPad[1] = pl_actions[1] & 0xfff;\r
1137\r
1138 if (pl_actions[0] & 0x7000)\r
1139 do_turbo(&PicoPad[0], pl_actions[0]);\r
1140 if (pl_actions[1] & 0x7000)\r
1141 do_turbo(&PicoPad[1], pl_actions[1]);\r
1142\r
1143 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1144\r
1145 // volume is treated in special way and triggered every frame\r
1146 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r
1147 plat_update_volume(1, events & PEV_VOL_UP);\r
1148\r
1149 if ((events ^ prev_events) & PEV_FF) {\r
1150 emu_set_fastforward(events & PEV_FF);\r
1151 plat_update_volume(0, 0);\r
1152 reset_timing = 1;\r
1153 }\r
1154\r
1155 events &= ~prev_events;\r
1156\r
1157 if (PicoAHW == PAHW_PICO)\r
1158 run_events_pico(events);\r
1159 if (events)\r
1160 run_events_ui(events);\r
1161 if (movie_data)\r
1162 update_movie();\r
1163\r
1164 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1165}\r
1166\r
1167static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r
1168{\r
1169 strcpy(path_with_reserve + pos, name);\r
1170 if (plat_is_dir(path_with_reserve))\r
1171 return;\r
1172 if (mkdir(path_with_reserve, 0777) < 0)\r
1173 lprintf("failed to create: %s\n", path_with_reserve);\r
1174}\r
1175\r
1176void emu_cmn_forced_frame(int no_scale, int do_emu)\r
1177{\r
1178 int po_old = PicoOpt;\r
1179\r
1180 memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
1181\r
1182 PicoOpt &= ~POPT_ALT_RENDERER;\r
1183 PicoOpt |= POPT_ACC_SPRITES;\r
1184 if (!no_scale)\r
1185 PicoOpt |= POPT_EN_SOFTSCALE;\r
1186\r
1187 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
1188 Pico.m.dirtyPal = 1;\r
1189 if (do_emu)\r
1190 PicoFrame();\r
1191 else\r
1192 PicoFrameDrawOnly();\r
1193\r
1194 PicoOpt = po_old;\r
1195}\r
1196\r
1197void emu_init(void)\r
1198{\r
1199 char path[512];\r
1200 int pos;\r
1201\r
1202#if 0\r
1203 // FIXME: handle through menu, etc\r
1204 FILE *f;\r
1205 f = fopen("32X_M_BIOS.BIN", "rb");\r
1206 p32x_bios_m = malloc(2048);\r
1207 fread(p32x_bios_m, 1, 2048, f);\r
1208 fclose(f);\r
1209 f = fopen("32X_S_BIOS.BIN", "rb");\r
1210 p32x_bios_s = malloc(1024);\r
1211 fread(p32x_bios_s, 1, 1024, f);\r
1212 fclose(f);\r
1213#endif\r
1214\r
1215 /* make dirs for saves */\r
1216 pos = plat_get_root_dir(path, sizeof(path) - 4);\r
1217 mkdir_path(path, pos, "mds");\r
1218 mkdir_path(path, pos, "srm");\r
1219 mkdir_path(path, pos, "brm");\r
1220 mkdir_path(path, pos, "cfg");\r
1221\r
1222 pprof_init();\r
1223\r
1224 make_config_cfg(path);\r
1225 config_readlrom(path);\r
1226\r
1227 PicoInit();\r
1228 PicoMessage = plat_status_msg_busy_next;\r
1229 PicoMCDopenTray = emu_tray_open;\r
1230 PicoMCDcloseTray = emu_tray_close;\r
1231\r
1232 sndout_init();\r
1233}\r
1234\r
1235void emu_finish(void)\r
1236{\r
1237 // save SRAM\r
1238 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1239 emu_save_load_game(0, 1);\r
1240 SRam.changed = 0;\r
1241 }\r
1242\r
1243 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r
1244 char cfg[512];\r
1245 make_config_cfg(cfg);\r
1246 config_writelrom(cfg);\r
1247#ifdef __GP2X__\r
1248 sync();\r
1249#endif\r
1250 }\r
1251\r
1252 pprof_finish();\r
1253\r
1254 PicoExit();\r
1255 sndout_exit();\r
1256}\r
1257\r
1258static void snd_write_nonblocking(int len)\r
1259{\r
1260 sndout_write_nb(PsndOut, len);\r
1261}\r
1262\r
1263void emu_sound_start(void)\r
1264{\r
1265 PsndOut = NULL;\r
1266\r
1267 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
1268 {\r
1269 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
1270\r
1271 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
1272\r
1273 printf("starting audio: %i len: %i stereo: %i, pal: %i\n",\r
1274 PsndRate, PsndLen, is_stereo, Pico.m.pal);\r
1275 sndout_start(PsndRate, is_stereo);\r
1276 PicoWriteSound = snd_write_nonblocking;\r
1277 plat_update_volume(0, 0);\r
1278 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1279 PsndOut = sndBuffer;\r
1280 }\r
1281}\r
1282\r
1283void emu_sound_stop(void)\r
1284{\r
1285 sndout_stop();\r
1286}\r
1287\r
1288void emu_sound_wait(void)\r
1289{\r
1290 sndout_wait();\r
1291}\r
1292\r
1293static void emu_loop_prep(void)\r
1294{\r
1295 static int pal_old = -1;\r
1296 static int filter_old = -1;\r
1297\r
1298 if (currentConfig.CPUclock != plat_target_cpu_clock_get())\r
1299 plat_target_cpu_clock_set(currentConfig.CPUclock);\r
1300\r
1301 if (Pico.m.pal != pal_old) {\r
1302 plat_target_lcdrate_set(Pico.m.pal);\r
1303 pal_old = Pico.m.pal;\r
1304 }\r
1305\r
1306 if (currentConfig.filter != filter_old) {\r
1307 plat_target_hwfilter_set(currentConfig.filter);\r
1308 filter_old = currentConfig.filter;\r
1309 }\r
1310\r
1311 plat_target_gamma_set(currentConfig.gamma, 0);\r
1312\r
1313 pemu_loop_prep();\r
1314}\r
1315\r
1316/* our tick here is 1 us right now */\r
1317#define ms_to_ticks(x) (unsigned int)(x * 1000)\r
1318#define get_ticks() plat_get_ticks_us()\r
1319\r
1320void emu_loop(void)\r
1321{\r
1322 int frames_done, frames_shown; /* actual frames for fps counter */\r
1323 int target_frametime_x3;\r
1324 unsigned int timestamp_x3 = 0;\r
1325 unsigned int timestamp_aim_x3 = 0;\r
1326 unsigned int timestamp_fps_x3 = 0;\r
1327 char *notice_msg = NULL;\r
1328 char fpsbuff[24];\r
1329 int fskip_cnt = 0;\r
1330\r
1331 fpsbuff[0] = 0;\r
1332\r
1333 PicoLoopPrepare();\r
1334\r
1335 // prepare CD buffer\r
1336 if (PicoAHW & PAHW_MCD)\r
1337 PicoCDBufferInit();\r
1338\r
1339 plat_video_loop_prepare();\r
1340 emu_loop_prep();\r
1341 pemu_sound_start();\r
1342\r
1343 /* number of ticks per frame */\r
1344 if (Pico.m.pal)\r
1345 target_frametime_x3 = 3 * ms_to_ticks(1000) / 50;\r
1346 else\r
1347 target_frametime_x3 = 3 * ms_to_ticks(1000) / 60;\r
1348\r
1349 reset_timing = 1;\r
1350 frames_done = frames_shown = 0;\r
1351\r
1352 /* loop with resync every 1 sec. */\r
1353 while (engineState == PGS_Running)\r
1354 {\r
1355 int skip = 0;\r
1356 int diff;\r
1357\r
1358 pprof_start(main);\r
1359\r
1360 if (reset_timing) {\r
1361 reset_timing = 0;\r
1362 plat_video_wait_vsync();\r
1363 timestamp_aim_x3 = get_ticks() * 3;\r
1364 timestamp_fps_x3 = timestamp_aim_x3;\r
1365 fskip_cnt = 0;\r
1366 }\r
1367 else if (currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) {\r
1368 timestamp_aim_x3 = get_ticks() * 3;\r
1369 }\r
1370\r
1371 timestamp_x3 = get_ticks() * 3;\r
1372\r
1373 // show notice_msg message?\r
1374 if (notice_msg_time != 0)\r
1375 {\r
1376 static int noticeMsgSum;\r
1377 if (timestamp_x3 - ms_to_ticks(notice_msg_time) * 3\r
1378 > ms_to_ticks(STATUS_MSG_TIMEOUT) * 3)\r
1379 {\r
1380 notice_msg_time = 0;\r
1381 plat_status_msg_clear();\r
1382 notice_msg = NULL;\r
1383 }\r
1384 else {\r
1385 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];\r
1386 if (sum != noticeMsgSum) {\r
1387 plat_status_msg_clear();\r
1388 noticeMsgSum = sum;\r
1389 }\r
1390 notice_msg = noticeMsg;\r
1391 }\r
1392 }\r
1393\r
1394 // second changed?\r
1395 if (timestamp_x3 - timestamp_fps_x3 >= ms_to_ticks(1000) * 3)\r
1396 {\r
1397#ifdef BENCHMARK\r
1398 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1399 if (++bench == 10) {\r
1400 bench = 0;\r
1401 bench_fps_s = bench_fps;\r
1402 bf[bfp++ & 3] = bench_fps;\r
1403 bench_fps = 0;\r
1404 }\r
1405 bench_fps += frames_shown;\r
1406 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1407 printf("%s\n", fpsbuff);\r
1408#else\r
1409 if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r
1410 sprintf(fpsbuff, "%02i/%02i ", frames_shown, frames_done);\r
1411#endif\r
1412 frames_shown = frames_done = 0;\r
1413 timestamp_fps_x3 += ms_to_ticks(1000) * 3;\r
1414 }\r
1415#ifdef PFRAMES\r
1416 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
1417#endif\r
1418\r
1419 diff = timestamp_aim_x3 - timestamp_x3;\r
1420\r
1421 if (currentConfig.Frameskip >= 0) // frameskip enabled (or 0)\r
1422 {\r
1423 if (fskip_cnt < currentConfig.Frameskip) {\r
1424 fskip_cnt++;\r
1425 skip = 1;\r
1426 }\r
1427 else {\r
1428 fskip_cnt = 0;\r
1429 }\r
1430 }\r
1431 else if (diff < -target_frametime_x3)\r
1432 {\r
1433 /* no time left for this frame - skip */\r
1434 /* limit auto frameskip to 8 */\r
1435 if (frames_done / 8 <= frames_shown)\r
1436 skip = 1;\r
1437 }\r
1438\r
1439 // don't go in debt too much\r
1440 while (diff < -target_frametime_x3 * 3) {\r
1441 timestamp_aim_x3 += target_frametime_x3;\r
1442 diff = timestamp_aim_x3 - timestamp_x3;\r
1443 }\r
1444\r
1445 emu_update_input();\r
1446 if (skip) {\r
1447 int do_audio = diff > -target_frametime_x3 * 2;\r
1448 PicoSkipFrame = do_audio ? 1 : 2;\r
1449 PicoFrame();\r
1450 PicoSkipFrame = 0;\r
1451 }\r
1452 else {\r
1453 PicoFrame();\r
1454 pemu_finalize_frame(fpsbuff, notice_msg);\r
1455 frames_shown++;\r
1456 }\r
1457 frames_done++;\r
1458 timestamp_aim_x3 += target_frametime_x3;\r
1459\r
1460 if (!skip && !flip_after_sync)\r
1461 plat_video_flip();\r
1462\r
1463 /* frame limiter */\r
1464 if (!skip && !reset_timing\r
1465 && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT)))\r
1466 {\r
1467 unsigned int timestamp = get_ticks();\r
1468 diff = timestamp_aim_x3 - timestamp * 3;\r
1469\r
1470 // sleep or vsync if we are still too fast\r
1471 if (diff > target_frametime_x3 && (currentConfig.EmuOpt & EOPT_VSYNC)) {\r
1472 // we are too fast\r
1473 plat_video_wait_vsync();\r
1474 timestamp = get_ticks();\r
1475 diff = timestamp * 3 - timestamp_aim_x3;\r
1476 }\r
1477 if (diff > target_frametime_x3) {\r
1478 // still too fast\r
1479 plat_wait_till_us(timestamp + (diff - target_frametime_x3) / 3);\r
1480 }\r
1481 }\r
1482\r
1483 if (!skip && flip_after_sync)\r
1484 plat_video_flip();\r
1485\r
1486 pprof_end(main);\r
1487 }\r
1488\r
1489 emu_set_fastforward(0);\r
1490\r
1491 // save SRAM\r
1492 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1493 plat_status_msg_busy_first("Writing SRAM/BRAM...");\r
1494 emu_save_load_game(0, 1);\r
1495 SRam.changed = 0;\r
1496 }\r
1497\r
1498 pemu_loop_end();\r
1499 emu_sound_stop();\r
1500\r
1501 // pemu_loop_end() might want to do 1 frame for bg image,\r
1502 // so free CD buffer here\r
1503 if (PicoAHW & PAHW_MCD)\r
1504 PicoCDBufferFree();\r
1505}\r
1506\r
fast MegaDrive/MegaCD/32X emulator