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Merge pull request #72 from Chips-fr/master
[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_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 (PicoIn.regionOverride) {\r
175 *region = PicoIn.regionOverride;\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 (PicoIn.AHW & PAHW_MCD) {\r
270 strcpy(id_string, "CD|");\r
271 swab = 0;\r
272 }\r
273 else if (PicoIn.AHW & PAHW_SMS)\r
274 strcpy(id_string, "MS|");\r
275 else strcpy(id_string, "MD|");\r
276 pos = 3;\r
277\r
278 if (!(PicoIn.AHW & 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 = (PicoIn.AHW & 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 (PicoIn.AHW & 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 (PicoIn.AHW & PAHW_PICO) {\r
324 sys_name = "Pico";\r
325 } else if ((PicoIn.AHW & (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 (PicoIn.AHW & 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 (PicoIn.AHW & 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 (PicoIn.quirks & 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 PicoIn.opt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
474 if (movie_data[0xF] >= 'A') {\r
475 if (movie_data[0x16] & 0x80) {\r
476 PicoIn.regionOverride = 8;\r
477 } else {\r
478 PicoIn.regionOverride = 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 PicoIn.opt &= ~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 PicoIn.opt = currentConfig.s_PicoOpt;\r
607 PicoIn.sndRate = currentConfig.s_PsndRate;\r
608 PicoIn.regionOverride = currentConfig.s_PicoRegion;\r
609 PicoIn.autoRgnOrder = 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 PicoIn.overclockM68k = currentConfig.overclock_68k;\r
656\r
657 // some sanity checks\r
658#ifdef PSP\r
659 /* TODO: mv to plat_validate_config() */\r
660 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
661 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
662 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
663#endif\r
664 if (currentConfig.volume < 0 || currentConfig.volume > 99)\r
665 currentConfig.volume = 50;\r
666\r
667 if (ret == 0)\r
668 config_slot_current = config_slot;\r
669\r
670 return (ret == 0);\r
671}\r
672\r
673\r
674int emu_write_config(int is_game)\r
675{\r
676 char cfg[512];\r
677 int ret, write_lrom = 0;\r
678\r
679 if (!is_game)\r
680 {\r
681 make_config_cfg(cfg);\r
682 write_lrom = 1;\r
683 } else {\r
684 char ext[16];\r
685\r
686 if (config_slot != 0)\r
687 snprintf(ext, sizeof(ext), ".%i.cfg", config_slot);\r
688 else\r
689 strcpy(ext, ".cfg");\r
690\r
691 romfname_ext(cfg, sizeof(cfg), "cfg"PATH_SEP, ext);\r
692 }\r
693\r
694 lprintf("emu_write_config: %s ", cfg);\r
695 ret = config_write(cfg);\r
696 if (write_lrom) config_writelrom(cfg);\r
697#ifdef __GP2X__\r
698 sync();\r
699#endif\r
700 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
701\r
702 if (ret == 0) config_slot_current = config_slot;\r
703 return ret == 0;\r
704}\r
705\r
706\r
707/* always using built-in font */\r
708\r
709#define mk_text_out(name, type, val, topleft, step_x, step_y) \\r
710void name(int x, int y, const char *text) \\r
711{ \\r
712 int i, l, len = strlen(text); \\r
713 type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r
714 \\r
715 for (i = 0; i < len; i++, screen += 8 * step_x) \\r
716 { \\r
717 for (l = 0; l < 8; l++) \\r
718 { \\r
719 unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r
720 type *s = screen + l * step_y; \\r
721 if (fd&0x80) s[step_x * 0] = val; \\r
722 if (fd&0x40) s[step_x * 1] = val; \\r
723 if (fd&0x20) s[step_x * 2] = val; \\r
724 if (fd&0x10) s[step_x * 3] = val; \\r
725 if (fd&0x08) s[step_x * 4] = val; \\r
726 if (fd&0x04) s[step_x * 5] = val; \\r
727 if (fd&0x02) s[step_x * 6] = val; \\r
728 if (fd&0x01) s[step_x * 7] = val; \\r
729 } \\r
730 } \\r
731}\r
732\r
733mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r
734mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r
735mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r
736 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
737mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r
738 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
739\r
740#undef mk_text_out\r
741\r
742void emu_osd_text16(int x, int y, const char *text)\r
743{\r
744 int len = strlen(text) * 8;\r
745 int i, h;\r
746\r
747 len++;\r
748 if (x + len > g_screen_width)\r
749 len = g_screen_width - x;\r
750\r
751 for (h = 0; h < 8; h++) {\r
752 unsigned short *p;\r
753 p = (unsigned short *)g_screen_ptr\r
754 + x + g_screen_width * (y + h);\r
755 for (i = len; i > 0; i--, p++)\r
756 *p = (*p >> 2) & 0x39e7;\r
757 }\r
758 emu_text_out16(x, y, text);\r
759}\r
760\r
761static void update_movie(void)\r
762{\r
763 int offs = Pico.m.frame_count*3 + 0x40;\r
764 if (offs+3 > movie_size) {\r
765 free(movie_data);\r
766 movie_data = 0;\r
767 emu_status_msg("END OF MOVIE.");\r
768 lprintf("END OF MOVIE.\n");\r
769 } else {\r
770 // MXYZ SACB RLDU\r
771 PicoIn.pad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
772 if(!(movie_data[offs] & 0x10)) PicoIn.pad[0] |= 0x40; // C\r
773 if(!(movie_data[offs] & 0x20)) PicoIn.pad[0] |= 0x10; // A\r
774 if(!(movie_data[offs] & 0x40)) PicoIn.pad[0] |= 0x20; // B\r
775 PicoIn.pad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
776 if(!(movie_data[offs+1] & 0x10)) PicoIn.pad[1] |= 0x40; // C\r
777 if(!(movie_data[offs+1] & 0x20)) PicoIn.pad[1] |= 0x10; // A\r
778 if(!(movie_data[offs+1] & 0x40)) PicoIn.pad[1] |= 0x20; // B\r
779 PicoIn.pad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
780 if(!(movie_data[offs+2] & 0x01)) PicoIn.pad[0] |= 0x0400; // X\r
781 if(!(movie_data[offs+2] & 0x04)) PicoIn.pad[0] |= 0x0100; // Z\r
782 PicoIn.pad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
783 if(!(movie_data[offs+2] & 0x10)) PicoIn.pad[1] |= 0x0400; // X\r
784 if(!(movie_data[offs+2] & 0x40)) PicoIn.pad[1] |= 0x0100; // Z\r
785 }\r
786}\r
787\r
788static int try_ropen_file(const char *fname, int *time)\r
789{\r
790 struct stat st;\r
791 FILE *f;\r
792\r
793 f = fopen(fname, "rb");\r
794 if (f) {\r
795 if (time != NULL) {\r
796 *time = 0;\r
797 if (fstat(fileno(f), &st) == 0)\r
798 *time = (int)st.st_mtime;\r
799 }\r
800 fclose(f);\r
801 return 1;\r
802 }\r
803 return 0;\r
804}\r
805\r
806char *emu_get_save_fname(int load, int is_sram, int slot, int *time)\r
807{\r
808 char *saveFname = static_buff;\r
809 char ext[16];\r
810\r
811 if (is_sram)\r
812 {\r
813 strcpy(ext, (PicoIn.AHW & PAHW_MCD) ? ".brm" : ".srm");\r
814 romfname_ext(saveFname, sizeof(static_buff),\r
815 (PicoIn.AHW & PAHW_MCD) ? "brm"PATH_SEP : "srm"PATH_SEP, ext);\r
816 if (!load)\r
817 return saveFname;\r
818\r
819 if (try_ropen_file(saveFname, time))\r
820 return saveFname;\r
821\r
822 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
823 if (try_ropen_file(saveFname, time))\r
824 return saveFname;\r
825 }\r
826 else\r
827 {\r
828 const char *ext_main = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds";\r
829 const char *ext_othr = (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds" : ".mds.gz";\r
830 ext[0] = 0;\r
831 if (slot > 0 && slot < 10)\r
832 sprintf(ext, ".%i", slot);\r
833 strcat(ext, ext_main);\r
834\r
835 if (!load) {\r
836 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
837 return saveFname;\r
838 }\r
839 else {\r
840 romfname_ext(saveFname, sizeof(static_buff), "mds" PATH_SEP, ext);\r
841 if (try_ropen_file(saveFname, time))\r
842 return saveFname;\r
843\r
844 romfname_ext(saveFname, sizeof(static_buff), NULL, ext);\r
845 if (try_ropen_file(saveFname, time))\r
846 return saveFname;\r
847\r
848 // try the other ext\r
849 ext[0] = 0;\r
850 if (slot > 0 && slot < 10)\r
851 sprintf(ext, ".%i", slot);\r
852 strcat(ext, ext_othr);\r
853\r
854 romfname_ext(saveFname, sizeof(static_buff), "mds"PATH_SEP, ext);\r
855 if (try_ropen_file(saveFname, time))\r
856 return saveFname;\r
857 }\r
858 }\r
859\r
860 return NULL;\r
861}\r
862\r
863int emu_check_save_file(int slot, int *time)\r
864{\r
865 return emu_get_save_fname(1, 0, slot, time) ? 1 : 0;\r
866}\r
867\r
868int emu_save_load_game(int load, int sram)\r
869{\r
870 int ret = 0;\r
871 char *saveFname;\r
872\r
873 // make save filename\r
874 saveFname = emu_get_save_fname(load, sram, state_slot, NULL);\r
875 if (saveFname == NULL) {\r
876 if (!sram)\r
877 emu_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r
878 return -1;\r
879 }\r
880\r
881 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
882\r
883 if (sram)\r
884 {\r
885 FILE *sramFile;\r
886 int sram_size;\r
887 unsigned char *sram_data;\r
888 int truncate = 1;\r
889 if (PicoIn.AHW & PAHW_MCD)\r
890 {\r
891 if (PicoIn.opt & POPT_EN_MCD_RAMCART) {\r
892 sram_size = 0x12000;\r
893 sram_data = Pico.sv.data;\r
894 if (sram_data)\r
895 memcpy(sram_data, Pico_mcd->bram, 0x2000);\r
896 } else {\r
897 sram_size = 0x2000;\r
898 sram_data = Pico_mcd->bram;\r
899 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
900 }\r
901 } else {\r
902 sram_size = Pico.sv.size;\r
903 sram_data = Pico.sv.data;\r
904 }\r
905 if (sram_data == NULL)\r
906 return 0; // cart saves forcefully disabled for this game\r
907\r
908 if (load)\r
909 {\r
910 sramFile = fopen(saveFname, "rb");\r
911 if (!sramFile)\r
912 return -1;\r
913 ret = fread(sram_data, 1, sram_size, sramFile);\r
914 ret = ret > 0 ? 0 : -1;\r
915 fclose(sramFile);\r
916 if ((PicoIn.AHW & PAHW_MCD) && (PicoIn.opt&POPT_EN_MCD_RAMCART))\r
917 memcpy(Pico_mcd->bram, sram_data, 0x2000);\r
918 } else {\r
919 // sram save needs some special processing\r
920 // see if we have anything to save\r
921 for (; sram_size > 0; sram_size--)\r
922 if (sram_data[sram_size-1]) break;\r
923\r
924 if (sram_size) {\r
925 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
926 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
927 if (!sramFile) return -1;\r
928 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
929 ret = (ret != sram_size) ? -1 : 0;\r
930 fclose(sramFile);\r
931#ifdef __GP2X__\r
932 sync();\r
933#endif\r
934 }\r
935 }\r
936 return ret;\r
937 }\r
938 else\r
939 {\r
940 ret = PicoState(saveFname, !load);\r
941 if (!ret) {\r
942#ifdef __GP2X__\r
943 if (!load) sync();\r
944#endif\r
945 emu_status_msg(load ? "STATE LOADED" : "STATE SAVED");\r
946 } else {\r
947 emu_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r
948 ret = -1;\r
949 }\r
950\r
951 return ret;\r
952 }\r
953}\r
954\r
955void emu_set_fastforward(int set_on)\r
956{\r
957 static void *set_PsndOut = NULL;\r
958 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
959\r
960 if (set_on && !is_on) {\r
961 set_PsndOut = PicoIn.sndOut;\r
962 set_Frameskip = currentConfig.Frameskip;\r
963 set_EmuOpt = currentConfig.EmuOpt;\r
964 PicoIn.sndOut = NULL;\r
965 currentConfig.Frameskip = 8;\r
966 currentConfig.EmuOpt &= ~4;\r
967 currentConfig.EmuOpt |= 0x40000;\r
968 is_on = 1;\r
969 emu_status_msg("FAST FORWARD");\r
970 }\r
971 else if (!set_on && is_on) {\r
972 PicoIn.sndOut = set_PsndOut;\r
973 currentConfig.Frameskip = set_Frameskip;\r
974 currentConfig.EmuOpt = set_EmuOpt;\r
975 PsndRerate(1);\r
976 is_on = 0;\r
977 // mainly to unbreak pcm\r
978 if (PicoIn.AHW & PAHW_MCD)\r
979 pcd_state_loaded();\r
980 }\r
981}\r
982\r
983static void emu_tray_open(void)\r
984{\r
985 engineState = PGS_TrayMenu;\r
986}\r
987\r
988static void emu_tray_close(void)\r
989{\r
990 emu_status_msg("CD tray closed.");\r
991}\r
992\r
993void emu_32x_startup(void)\r
994{\r
995 plat_video_toggle_renderer(0, 0); // HACK\r
996 system_announce();\r
997}\r
998\r
999void emu_reset_game(void)\r
1000{\r
1001 PicoReset();\r
1002 reset_timing = 1;\r
1003}\r
1004\r
1005void run_events_pico(unsigned int events)\r
1006{\r
1007 int lim_x;\r
1008\r
1009 if (events & PEV_PICO_SWINP) {\r
1010 pico_inp_mode++;\r
1011 if (pico_inp_mode > 2)\r
1012 pico_inp_mode = 0;\r
1013 switch (pico_inp_mode) {\r
1014 case 2: emu_status_msg("Input: Pen on Pad"); break;\r
1015 case 1: emu_status_msg("Input: Pen on Storyware"); break;\r
1016 case 0: emu_status_msg("Input: Joystick");\r
1017 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
1018 break;\r
1019 }\r
1020 }\r
1021 if (events & PEV_PICO_PPREV) {\r
1022 PicoPicohw.page--;\r
1023 if (PicoPicohw.page < 0)\r
1024 PicoPicohw.page = 0;\r
1025 emu_status_msg("Page %i", PicoPicohw.page);\r
1026 }\r
1027 if (events & PEV_PICO_PNEXT) {\r
1028 PicoPicohw.page++;\r
1029 if (PicoPicohw.page > 6)\r
1030 PicoPicohw.page = 6;\r
1031 emu_status_msg("Page %i", PicoPicohw.page);\r
1032 }\r
1033\r
1034 if (pico_inp_mode == 0)\r
1035 return;\r
1036\r
1037 /* handle other input modes */\r
1038 if (PicoIn.pad[0] & 1) pico_pen_y--;\r
1039 if (PicoIn.pad[0] & 2) pico_pen_y++;\r
1040 if (PicoIn.pad[0] & 4) pico_pen_x--;\r
1041 if (PicoIn.pad[0] & 8) pico_pen_x++;\r
1042 PicoIn.pad[0] &= ~0x0f; // release UDLR\r
1043\r
1044 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
1045 if (pico_pen_y < 8)\r
1046 pico_pen_y = 8;\r
1047 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r
1048 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r
1049 if (pico_pen_x < 0)\r
1050 pico_pen_x = 0;\r
1051 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r
1052 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r
1053\r
1054 PicoPicohw.pen_pos[0] = pico_pen_x;\r
1055 if (!(Pico.video.reg[12] & 1))\r
1056 PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r
1057 PicoPicohw.pen_pos[0] += 0x3c;\r
1058 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
1059}\r
1060\r
1061static void do_turbo(unsigned short *pad, int acts)\r
1062{\r
1063 static int turbo_pad = 0;\r
1064 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1065 int inc = currentConfig.turbo_rate * 2;\r
1066\r
1067 if (acts & 0x1000) {\r
1068 turbo_cnt[0] += inc;\r
1069 if (turbo_cnt[0] >= 60)\r
1070 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1071 }\r
1072 if (acts & 0x2000) {\r
1073 turbo_cnt[1] += inc;\r
1074 if (turbo_cnt[1] >= 60)\r
1075 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1076 }\r
1077 if (acts & 0x4000) {\r
1078 turbo_cnt[2] += inc;\r
1079 if (turbo_cnt[2] >= 60)\r
1080 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1081 }\r
1082 *pad |= turbo_pad & (acts >> 8);\r
1083}\r
1084\r
1085static void run_events_ui(unsigned int which)\r
1086{\r
1087 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r
1088 {\r
1089 int do_it = 1;\r
1090 if ( emu_check_save_file(state_slot, NULL) &&\r
1091 (((which & PEV_STATE_LOAD) && (currentConfig.confirm_save & EOPT_CONFIRM_LOAD)) ||\r
1092 ((which & PEV_STATE_SAVE) && (currentConfig.confirm_save & EOPT_CONFIRM_SAVE))) )\r
1093 {\r
1094 const char *nm;\r
1095 char tmp[64];\r
1096 int keys, len;\r
1097\r
1098 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE? " : "OVERWRITE SAVE? ");\r
1099 len = strlen(tmp);\r
1100 nm = in_get_key_name(-1, -PBTN_MOK);\r
1101 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
1102 len = strlen(tmp);\r
1103 nm = in_get_key_name(-1, -PBTN_MBACK);\r
1104 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
1105\r
1106 plat_status_msg_busy_first(tmp);\r
1107\r
1108 in_set_config_int(0, IN_CFG_BLOCKING, 1);\r
1109 while (in_menu_wait_any(NULL, 50) & (PBTN_MOK | PBTN_MBACK))\r
1110 ;\r
1111 while ( !((keys = in_menu_wait_any(NULL, 50)) & (PBTN_MOK | PBTN_MBACK)))\r
1112 ;\r
1113 if (keys & PBTN_MBACK)\r
1114 do_it = 0;\r
1115 while (in_menu_wait_any(NULL, 50) & (PBTN_MOK | PBTN_MBACK))\r
1116 ;\r
1117 in_set_config_int(0, IN_CFG_BLOCKING, 0);\r
1118 }\r
1119 if (do_it) {\r
1120 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING STATE" : "SAVING STATE");\r
1121 PicoStateProgressCB = plat_status_msg_busy_next;\r
1122 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r
1123 PicoStateProgressCB = NULL;\r
1124 }\r
1125 }\r
1126 if (which & PEV_SWITCH_RND)\r
1127 {\r
1128 plat_video_toggle_renderer(1, 0);\r
1129 }\r
1130 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r
1131 {\r
1132 if (which & PEV_SSLOT_PREV) {\r
1133 state_slot -= 1;\r
1134 if (state_slot < 0)\r
1135 state_slot = 9;\r
1136 } else {\r
1137 state_slot += 1;\r
1138 if (state_slot > 9)\r
1139 state_slot = 0;\r
1140 }\r
1141\r
1142 emu_status_msg("SAVE SLOT %i [%s]", state_slot,\r
1143 emu_check_save_file(state_slot, NULL) ? "USED" : "FREE");\r
1144 }\r
1145 if (which & PEV_RESET)\r
1146 emu_reset_game();\r
1147 if (which & PEV_MENU)\r
1148 engineState = PGS_Menu;\r
1149}\r
1150\r
1151void emu_update_input(void)\r
1152{\r
1153 static int prev_events = 0;\r
1154 int actions[IN_BINDTYPE_COUNT] = { 0, };\r
1155 int pl_actions[2];\r
1156 int events;\r
1157\r
1158 in_update(actions);\r
1159\r
1160 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r
1161 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r
1162\r
1163 PicoIn.pad[0] = pl_actions[0] & 0xfff;\r
1164 PicoIn.pad[1] = pl_actions[1] & 0xfff;\r
1165\r
1166 if (pl_actions[0] & 0x7000)\r
1167 do_turbo(&PicoIn.pad[0], pl_actions[0]);\r
1168 if (pl_actions[1] & 0x7000)\r
1169 do_turbo(&PicoIn.pad[1], pl_actions[1]);\r
1170\r
1171 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1172\r
1173 // volume is treated in special way and triggered every frame\r
1174 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r
1175 plat_update_volume(1, events & PEV_VOL_UP);\r
1176\r
1177 if ((events ^ prev_events) & PEV_FF) {\r
1178 emu_set_fastforward(events & PEV_FF);\r
1179 plat_update_volume(0, 0);\r
1180 reset_timing = 1;\r
1181 }\r
1182\r
1183 events &= ~prev_events;\r
1184\r
1185 if (PicoIn.AHW == PAHW_PICO)\r
1186 run_events_pico(events);\r
1187 if (events)\r
1188 run_events_ui(events);\r
1189 if (movie_data)\r
1190 update_movie();\r
1191\r
1192 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1193}\r
1194\r
1195static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r
1196{\r
1197 strcpy(path_with_reserve + pos, name);\r
1198 if (plat_is_dir(path_with_reserve))\r
1199 return;\r
1200 if (mkdir(path_with_reserve, 0777) < 0)\r
1201 lprintf("failed to create: %s\n", path_with_reserve);\r
1202}\r
1203\r
1204void emu_cmn_forced_frame(int no_scale, int do_emu)\r
1205{\r
1206 int po_old = PicoIn.opt;\r
1207\r
1208 memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
1209\r
1210 PicoIn.opt &= ~POPT_ALT_RENDERER;\r
1211 PicoIn.opt |= POPT_ACC_SPRITES;\r
1212 if (!no_scale)\r
1213 PicoIn.opt |= POPT_EN_SOFTSCALE;\r
1214\r
1215 PicoDrawSetOutFormat(PDF_RGB555, 1);\r
1216 Pico.m.dirtyPal = 1;\r
1217 if (do_emu)\r
1218 PicoFrame();\r
1219 else\r
1220 PicoFrameDrawOnly();\r
1221\r
1222 PicoIn.opt = po_old;\r
1223}\r
1224\r
1225void emu_init(void)\r
1226{\r
1227 char path[512];\r
1228 int pos;\r
1229\r
1230#if 0\r
1231 // FIXME: handle through menu, etc\r
1232 FILE *f;\r
1233 f = fopen("32X_M_BIOS.BIN", "rb");\r
1234 p32x_bios_m = malloc(2048);\r
1235 fread(p32x_bios_m, 1, 2048, f);\r
1236 fclose(f);\r
1237 f = fopen("32X_S_BIOS.BIN", "rb");\r
1238 p32x_bios_s = malloc(1024);\r
1239 fread(p32x_bios_s, 1, 1024, f);\r
1240 fclose(f);\r
1241#endif\r
1242\r
1243 /* make dirs for saves */\r
1244 pos = plat_get_root_dir(path, sizeof(path) - 4);\r
1245 mkdir_path(path, pos, "mds");\r
1246 mkdir_path(path, pos, "srm");\r
1247 mkdir_path(path, pos, "brm");\r
1248 mkdir_path(path, pos, "cfg");\r
1249\r
1250 pprof_init();\r
1251\r
1252 make_config_cfg(path);\r
1253 config_readlrom(path);\r
1254\r
1255 PicoInit();\r
1256 PicoIn.osdMessage = plat_status_msg_busy_next;\r
1257 PicoIn.mcdTrayOpen = emu_tray_open;\r
1258 PicoIn.mcdTrayClose = emu_tray_close;\r
1259\r
1260 sndout_init();\r
1261}\r
1262\r
1263void emu_finish(void)\r
1264{\r
1265 // save SRAM\r
1266 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && Pico.sv.changed) {\r
1267 emu_save_load_game(0, 1);\r
1268 Pico.sv.changed = 0;\r
1269 }\r
1270\r
1271 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r
1272 char cfg[512];\r
1273 make_config_cfg(cfg);\r
1274 config_writelrom(cfg);\r
1275#ifdef __GP2X__\r
1276 sync();\r
1277#endif\r
1278 }\r
1279\r
1280 pprof_finish();\r
1281\r
1282 PicoExit();\r
1283 sndout_exit();\r
1284}\r
1285\r
1286static void snd_write_nonblocking(int len)\r
1287{\r
1288 sndout_write_nb(PicoIn.sndOut, len);\r
1289}\r
1290\r
1291void emu_sound_start(void)\r
1292{\r
1293 PicoIn.sndOut = NULL;\r
1294\r
1295 if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
1296 {\r
1297 int is_stereo = (PicoIn.opt & POPT_EN_STEREO) ? 1 : 0;\r
1298\r
1299 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
1300\r
1301 printf("starting audio: %i len: %i stereo: %i, pal: %i\n",\r
1302 PicoIn.sndRate, Pico.snd.len, is_stereo, Pico.m.pal);\r
1303 sndout_start(PicoIn.sndRate, is_stereo);\r
1304 PicoIn.writeSound = snd_write_nonblocking;\r
1305 plat_update_volume(0, 0);\r
1306 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1307 PicoIn.sndOut = sndBuffer;\r
1308 }\r
1309}\r
1310\r
1311void emu_sound_stop(void)\r
1312{\r
1313 sndout_stop();\r
1314}\r
1315\r
1316void emu_sound_wait(void)\r
1317{\r
1318 sndout_wait();\r
1319}\r
1320\r
1321static void emu_loop_prep(void)\r
1322{\r
1323 static int pal_old = -1;\r
1324 static int filter_old = -1;\r
1325\r
1326 if (currentConfig.CPUclock != plat_target_cpu_clock_get())\r
1327 plat_target_cpu_clock_set(currentConfig.CPUclock);\r
1328\r
1329 if (Pico.m.pal != pal_old) {\r
1330 plat_target_lcdrate_set(Pico.m.pal);\r
1331 pal_old = Pico.m.pal;\r
1332 }\r
1333\r
1334 if (currentConfig.filter != filter_old) {\r
1335 plat_target_hwfilter_set(currentConfig.filter);\r
1336 filter_old = currentConfig.filter;\r
1337 }\r
1338\r
1339 plat_target_gamma_set(currentConfig.gamma, 0);\r
1340\r
1341 pemu_loop_prep();\r
1342}\r
1343\r
1344/* our tick here is 1 us right now */\r
1345#define ms_to_ticks(x) (unsigned int)(x * 1000)\r
1346#define get_ticks() plat_get_ticks_us()\r
1347\r
1348void emu_loop(void)\r
1349{\r
1350 int frames_done, frames_shown; /* actual frames for fps counter */\r
1351 int target_frametime_x3;\r
1352 unsigned int timestamp_x3 = 0;\r
1353 unsigned int timestamp_aim_x3 = 0;\r
1354 unsigned int timestamp_fps_x3 = 0;\r
1355 char *notice_msg = NULL;\r
1356 char fpsbuff[24];\r
1357 int fskip_cnt = 0;\r
1358\r
1359 fpsbuff[0] = 0;\r
1360\r
1361 PicoLoopPrepare();\r
1362\r
1363 plat_video_loop_prepare();\r
1364 emu_loop_prep();\r
1365 pemu_sound_start();\r
1366\r
1367 /* number of ticks per frame */\r
1368 if (Pico.m.pal)\r
1369 target_frametime_x3 = 3 * ms_to_ticks(1000) / 50;\r
1370 else\r
1371 target_frametime_x3 = 3 * ms_to_ticks(1000) / 60;\r
1372\r
1373 reset_timing = 1;\r
1374 frames_done = frames_shown = 0;\r
1375\r
1376 /* loop with resync every 1 sec. */\r
1377 while (engineState == PGS_Running)\r
1378 {\r
1379 int skip = 0;\r
1380 int diff;\r
1381\r
1382 pprof_start(main);\r
1383\r
1384 if (reset_timing) {\r
1385 reset_timing = 0;\r
1386 plat_video_wait_vsync();\r
1387 timestamp_aim_x3 = get_ticks() * 3;\r
1388 timestamp_fps_x3 = timestamp_aim_x3;\r
1389 fskip_cnt = 0;\r
1390 }\r
1391 else if (currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) {\r
1392 timestamp_aim_x3 = get_ticks() * 3;\r
1393 }\r
1394\r
1395 timestamp_x3 = get_ticks() * 3;\r
1396\r
1397 // show notice_msg message?\r
1398 if (notice_msg_time != 0)\r
1399 {\r
1400 static int noticeMsgSum;\r
1401 if (timestamp_x3 - ms_to_ticks(notice_msg_time) * 3\r
1402 > ms_to_ticks(STATUS_MSG_TIMEOUT) * 3)\r
1403 {\r
1404 notice_msg_time = 0;\r
1405 plat_status_msg_clear();\r
1406 plat_video_flip();\r
1407 plat_status_msg_clear(); /* Do it again in case of double buffering */\r
1408 notice_msg = NULL;\r
1409 }\r
1410 else {\r
1411 int sum = noticeMsg[0] + noticeMsg[1] + noticeMsg[2];\r
1412 if (sum != noticeMsgSum) {\r
1413 plat_status_msg_clear();\r
1414 noticeMsgSum = sum;\r
1415 }\r
1416 notice_msg = noticeMsg;\r
1417 }\r
1418 }\r
1419\r
1420 // second changed?\r
1421 if (timestamp_x3 - timestamp_fps_x3 >= ms_to_ticks(1000) * 3)\r
1422 {\r
1423#ifdef BENCHMARK\r
1424 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1425 if (++bench == 10) {\r
1426 bench = 0;\r
1427 bench_fps_s = bench_fps;\r
1428 bf[bfp++ & 3] = bench_fps;\r
1429 bench_fps = 0;\r
1430 }\r
1431 bench_fps += frames_shown;\r
1432 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1433 printf("%s\n", fpsbuff);\r
1434#else\r
1435 if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r
1436 snprintf(fpsbuff, 8, "%02i/%02i ", frames_shown, frames_done);\r
1437#endif\r
1438 frames_shown = frames_done = 0;\r
1439 timestamp_fps_x3 += ms_to_ticks(1000) * 3;\r
1440 }\r
1441#ifdef PFRAMES\r
1442 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
1443#endif\r
1444\r
1445 diff = timestamp_aim_x3 - timestamp_x3;\r
1446\r
1447 if (currentConfig.Frameskip >= 0) // frameskip enabled (or 0)\r
1448 {\r
1449 if (fskip_cnt < currentConfig.Frameskip) {\r
1450 fskip_cnt++;\r
1451 skip = 1;\r
1452 }\r
1453 else {\r
1454 fskip_cnt = 0;\r
1455 }\r
1456 }\r
1457 else if (diff < -target_frametime_x3)\r
1458 {\r
1459 /* no time left for this frame - skip */\r
1460 /* limit auto frameskip to 8 */\r
1461 if (frames_done / 8 <= frames_shown)\r
1462 skip = 1;\r
1463 }\r
1464\r
1465 // don't go in debt too much\r
1466 while (diff < -target_frametime_x3 * 3) {\r
1467 timestamp_aim_x3 += target_frametime_x3;\r
1468 diff = timestamp_aim_x3 - timestamp_x3;\r
1469 }\r
1470\r
1471 emu_update_input();\r
1472 if (skip) {\r
1473 int do_audio = diff > -target_frametime_x3 * 2;\r
1474 PicoIn.skipFrame = do_audio ? 1 : 2;\r
1475 PicoFrame();\r
1476 PicoIn.skipFrame = 0;\r
1477 }\r
1478 else {\r
1479 PicoFrame();\r
1480 pemu_finalize_frame(fpsbuff, notice_msg);\r
1481 frames_shown++;\r
1482 }\r
1483 frames_done++;\r
1484 timestamp_aim_x3 += target_frametime_x3;\r
1485\r
1486 if (!skip && !flip_after_sync)\r
1487 plat_video_flip();\r
1488\r
1489 /* frame limiter */\r
1490 if (!skip && !reset_timing\r
1491 && !(currentConfig.EmuOpt & (EOPT_NO_FRMLIMIT|EOPT_EXT_FRMLIMIT)))\r
1492 {\r
1493 unsigned int timestamp = get_ticks();\r
1494 diff = timestamp_aim_x3 - timestamp * 3;\r
1495\r
1496 // sleep or vsync if we are still too fast\r
1497 if (diff > target_frametime_x3 && (currentConfig.EmuOpt & EOPT_VSYNC)) {\r
1498 // we are too fast\r
1499 plat_video_wait_vsync();\r
1500 timestamp = get_ticks();\r
1501 diff = timestamp * 3 - timestamp_aim_x3;\r
1502 }\r
1503 if (diff > target_frametime_x3) {\r
1504 // still too fast\r
1505 plat_wait_till_us(timestamp + (diff - target_frametime_x3) / 3);\r
1506 }\r
1507 }\r
1508\r
1509 if (!skip && flip_after_sync)\r
1510 plat_video_flip();\r
1511\r
1512 pprof_end(main);\r
1513 }\r
1514\r
1515 emu_set_fastforward(0);\r
1516\r
1517 // save SRAM\r
1518 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && Pico.sv.changed) {\r
1519 plat_status_msg_busy_first("Writing SRAM/BRAM...");\r
1520 emu_save_load_game(0, 1);\r
1521 Pico.sv.changed = 0;\r
1522 }\r
1523\r
1524 pemu_loop_end();\r
1525 emu_sound_stop();\r
1526}\r
fast MegaDrive/MegaCD/32X emulator