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enable evdev also for GP2X
[libpicofe.git] / common / emu.c
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1// (c) Copyright 2006-2007 notaz, All rights reserved.\r
2// Free for non-commercial use.\r
3\r
4// For commercial use, separate licencing terms must be obtained.\r
5\r
6#include <stdio.h>\r
7#include <stdlib.h>\r
8#ifndef NO_SYNC\r
9#include <unistd.h>\r
10#endif\r
11\r
12#include "emu.h"\r
13#include "menu.h"\r
14#include "fonts.h"\r
15#include "lprintf.h"\r
16#include "config.h"\r
17#include "plat.h"\r
18#include "input.h"\r
19#include "posix.h"\r
20\r
21#include <pico/pico_int.h>\r
22#include <pico/patch.h>\r
23#include <pico/cd/cue.h>\r
24#include <zlib/zlib.h>\r
25\r
26\r
27void *g_screen_ptr;\r
28\r
29#if !SCREEN_SIZE_FIXED\r
30int g_screen_width = SCREEN_WIDTH;\r
31int g_screen_height = SCREEN_HEIGHT;\r
32#endif\r
33\r
34char *PicoConfigFile = "config.cfg";\r
35currentConfig_t currentConfig, defaultConfig;\r
36int state_slot = 0;\r
37int config_slot = 0, config_slot_current = 0;\r
38int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
39int pico_inp_mode = 0;\r
40int engineState = PGS_Menu;\r
41\r
42/* TODO: len checking */\r
43char rom_fname_reload[512] = { 0, };\r
44char rom_fname_loaded[512] = { 0, };\r
45int rom_loaded = 0;\r
46int reset_timing = 0;\r
47\r
48unsigned char *movie_data = NULL;\r
49static int movie_size = 0;\r
50\r
51\r
52/* don't use tolower() for easy old glibc binary compatibility */\r
53static void strlwr_(char *string)\r
54{\r
55 char *p;\r
56 for (p = string; *p; p++)\r
57 if ('A' <= *p && *p <= 'Z')\r
58 *p += 'a' - 'A';\r
59}\r
60\r
61static int try_rfn_cut(char *fname)\r
62{\r
63 FILE *tmp;\r
64 char *p;\r
65\r
66 p = fname + strlen(fname) - 1;\r
67 for (; p > fname; p--)\r
68 if (*p == '.') break;\r
69 *p = 0;\r
70\r
71 if((tmp = fopen(fname, "rb"))) {\r
72 fclose(tmp);\r
73 return 1;\r
74 }\r
75 return 0;\r
76}\r
77\r
78static void get_ext(char *file, char *ext)\r
79{\r
80 char *p;\r
81\r
82 p = file + strlen(file) - 4;\r
83 if (p < file) p = file;\r
84 strncpy(ext, p, 4);\r
85 ext[4] = 0;\r
86 strlwr_(ext);\r
87}\r
88\r
89static const char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };\r
90static const char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };\r
91static const char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
92\r
93static int find_bios(int region, char **bios_file)\r
94{\r
95 static char bios_path[1024];\r
96 int i, count;\r
97 const char **files;\r
98 FILE *f = NULL;\r
99\r
100 if (region == 4) { // US\r
101 files = biosfiles_us;\r
102 count = sizeof(biosfiles_us) / sizeof(char *);\r
103 } else if (region == 8) { // EU\r
104 files = biosfiles_eu;\r
105 count = sizeof(biosfiles_eu) / sizeof(char *);\r
106 } else if (region == 1 || region == 2) {\r
107 files = biosfiles_jp;\r
108 count = sizeof(biosfiles_jp) / sizeof(char *);\r
109 } else {\r
110 return 0;\r
111 }\r
112\r
113 for (i = 0; i < count; i++)\r
114 {\r
115 emu_make_path(bios_path, files[i], sizeof(bios_path) - 4);\r
116 strcat(bios_path, ".bin");\r
117 f = fopen(bios_path, "rb");\r
118 if (f) break;\r
119\r
120 bios_path[strlen(bios_path) - 4] = 0;\r
121 strcat(bios_path, ".zip");\r
122 f = fopen(bios_path, "rb");\r
123 if (f) break;\r
124 }\r
125\r
126 if (f) {\r
127 lprintf("using bios: %s\n", bios_path);\r
128 fclose(f);\r
129 if (bios_file) *bios_file = bios_path;\r
130 return 1;\r
131 } else {\r
132 sprintf(bios_path, "no %s BIOS files found, read docs",\r
133 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
134 me_update_msg(bios_path);\r
135 return 0;\r
136 }\r
137}\r
138\r
139/* check if the name begins with BIOS name */\r
140/*\r
141static int emu_isBios(const char *name)\r
142{\r
143 int i;\r
144 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)\r
145 if (strstr(name, biosfiles_us[i]) != NULL) return 1;\r
146 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)\r
147 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;\r
148 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)\r
149 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;\r
150 return 0;\r
151}\r
152*/\r
153\r
154static unsigned char id_header[0x100];\r
155\r
156/* checks if fname points to valid MegaCD image\r
157 * if so, checks for suitable BIOS */\r
158int emu_cd_check(int *pregion, char *fname_in)\r
159{\r
160 unsigned char buf[32];\r
161 pm_file *cd_f;\r
162 int region = 4; // 1: Japan, 4: US, 8: Europe\r
163 char ext[5], *fname = fname_in;\r
164 cue_track_type type = CT_UNKNOWN;\r
165 cue_data_t *cue_data = NULL;\r
166\r
167 get_ext(fname_in, ext);\r
168 if (strcasecmp(ext, ".cue") == 0) {\r
169 cue_data = cue_parse(fname_in);\r
170 if (cue_data != NULL) {\r
171 fname = cue_data->tracks[1].fname;\r
172 type = cue_data->tracks[1].type;\r
173 }\r
174 else\r
175 return -1;\r
176 }\r
177\r
178 cd_f = pm_open(fname);\r
179 if (cue_data != NULL)\r
180 cue_destroy(cue_data);\r
181\r
182 if (cd_f == NULL) return 0; // let the upper level handle this\r
183\r
184 if (pm_read(buf, 32, cd_f) != 32) {\r
185 pm_close(cd_f);\r
186 return -1;\r
187 }\r
188\r
189 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {\r
190 if (type && type != CT_ISO)\r
191 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
192 type = CT_ISO; // Sega CD (ISO)\r
193 }\r
194 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {\r
195 if (type && type != CT_BIN)\r
196 elprintf(EL_STATUS, ".cue has wrong type: %i", type);\r
197 type = CT_BIN; // Sega CD (BIN)\r
198 }\r
199\r
200 if (type == CT_UNKNOWN) {\r
201 pm_close(cd_f);\r
202 return 0;\r
203 }\r
204\r
205 pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);\r
206 pm_read(id_header, sizeof(id_header), cd_f);\r
207\r
208 /* it seems we have a CD image here. Try to detect region now.. */\r
209 pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
210 pm_read(buf, 1, cd_f);\r
211 pm_close(cd_f);\r
212\r
213 if (buf[0] == 0x64) region = 8; // EU\r
214 if (buf[0] == 0xa1) region = 1; // JAP\r
215\r
216 lprintf("detected %s Sega/Mega CD image with %s region\n",\r
217 type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
218\r
219 if (pregion != NULL) *pregion = region;\r
220\r
221 return type;\r
222}\r
223\r
224static int extract_text(char *dest, const unsigned char *src, int len, int swab)\r
225{\r
226 char *p = dest;\r
227 int i;\r
228\r
229 if (swab) swab = 1;\r
230\r
231 for (i = len - 1; i >= 0; i--)\r
232 {\r
233 if (src[i^swab] != ' ') break;\r
234 }\r
235 len = i + 1;\r
236\r
237 for (i = 0; i < len; i++)\r
238 {\r
239 unsigned char s = src[i^swab];\r
240 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&\r
241 s != '[' && s != ']' && s != '\\')\r
242 {\r
243 *p++ = s;\r
244 }\r
245 else\r
246 {\r
247 sprintf(p, "\\%02x", s);\r
248 p += 3;\r
249 }\r
250 }\r
251\r
252 return p - dest;\r
253}\r
254\r
255static char *emu_make_rom_id(void)\r
256{\r
257 static char id_string[3+0xe*3+0x3*3+0x30*3+3];\r
258 int pos, swab = 1;\r
259\r
260 if (PicoAHW & PAHW_MCD) {\r
261 strcpy(id_string, "CD|");\r
262 swab = 0;\r
263 }\r
264 else strcpy(id_string, "MD|");\r
265 pos = 3;\r
266\r
267 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial\r
268 id_string[pos] = '|'; pos++;\r
269 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region\r
270 id_string[pos] = '|'; pos++;\r
271 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name\r
272 id_string[pos] = 0;\r
273\r
274 return id_string;\r
275}\r
276\r
277// buffer must be at least 150 byte long\r
278void emu_get_game_name(char *str150)\r
279{\r
280 int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;\r
281 char *s, *d;\r
282\r
283 ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name\r
284\r
285 for (s = d = str150 + 1; s < str150+ret; s++)\r
286 {\r
287 if (*s == 0) break;\r
288 if (*s != ' ' || d[-1] != ' ')\r
289 *d++ = *s;\r
290 }\r
291 *d = 0;\r
292}\r
293\r
294static void shutdown_MCD(void)\r
295{\r
296 if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)\r
297 Stop_CD();\r
298 PicoAHW &= ~PAHW_MCD;\r
299}\r
300\r
301// note: this function might mangle rom_fname\r
302int emu_reload_rom(char *rom_fname)\r
303{\r
304 unsigned int rom_size = 0;\r
305 char *used_rom_name = rom_fname;\r
306 unsigned char *rom_data = NULL;\r
307 char ext[5];\r
308 pm_file *rom = NULL;\r
309 int ret, cd_state, cd_region, cfg_loaded = 0;\r
310\r
311 lprintf("emu_ReloadRom(%s)\n", rom_fname);\r
312\r
313 get_ext(rom_fname, ext);\r
314\r
315 // detect wrong extensions\r
316 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
317 me_update_msg("Not a ROM/CD selected.");\r
318 return 0;\r
319 }\r
320\r
321 PicoPatchUnload();\r
322\r
323 // check for movie file\r
324 if (movie_data) {\r
325 free(movie_data);\r
326 movie_data = 0;\r
327 }\r
328 if (!strcmp(ext, ".gmv"))\r
329 {\r
330 // check for both gmv and rom\r
331 int dummy;\r
332 FILE *movie_file = fopen(rom_fname, "rb");\r
333 if(!movie_file) {\r
334 me_update_msg("Failed to open movie.");\r
335 return 0;\r
336 }\r
337 fseek(movie_file, 0, SEEK_END);\r
338 movie_size = ftell(movie_file);\r
339 fseek(movie_file, 0, SEEK_SET);\r
340 if(movie_size < 64+3) {\r
341 me_update_msg("Invalid GMV file.");\r
342 fclose(movie_file);\r
343 return 0;\r
344 }\r
345 movie_data = malloc(movie_size);\r
346 if(movie_data == NULL) {\r
347 me_update_msg("low memory.");\r
348 fclose(movie_file);\r
349 return 0;\r
350 }\r
351 fread(movie_data, 1, movie_size, movie_file);\r
352 fclose(movie_file);\r
353 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
354 me_update_msg("Invalid GMV file.");\r
355 return 0;\r
356 }\r
357 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
358 if (!dummy) {\r
359 me_update_msg("Could't find a ROM for movie.");\r
360 return 0;\r
361 }\r
362 get_ext(rom_fname, ext);\r
363 lprintf("gmv loaded for %s\n", rom_fname);\r
364 }\r
365 else if (!strcmp(ext, ".pat"))\r
366 {\r
367 int dummy;\r
368 PicoPatchLoad(rom_fname);\r
369 dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);\r
370 if (!dummy) {\r
371 me_update_msg("Could't find a ROM to patch.");\r
372 return 0;\r
373 }\r
374 get_ext(rom_fname, ext);\r
375 }\r
376\r
377 shutdown_MCD();\r
378\r
379 // check for MegaCD image\r
380 cd_state = emu_cd_check(&cd_region, rom_fname);\r
381 if (cd_state >= 0 && cd_state != CIT_NOT_CD)\r
382 {\r
383 PicoAHW |= PAHW_MCD;\r
384 // valid CD image, check for BIOS..\r
385\r
386 // we need to have config loaded at this point\r
387 ret = emu_read_config(1, 1);\r
388 if (!ret) emu_read_config(0, 1);\r
389 cfg_loaded = 1;\r
390\r
391 if (PicoRegionOverride) {\r
392 cd_region = PicoRegionOverride;\r
393 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");\r
394 }\r
395 if (!find_bios(cd_region, &used_rom_name)) {\r
396 PicoAHW &= ~PAHW_MCD;\r
397 return 0;\r
398 }\r
399\r
400 get_ext(used_rom_name, ext);\r
401 }\r
402 else\r
403 {\r
404 if (PicoAHW & PAHW_MCD) Stop_CD();\r
405 PicoAHW &= ~PAHW_MCD;\r
406 }\r
407\r
408 rom = pm_open(used_rom_name);\r
409 if (!rom) {\r
410 me_update_msg("Failed to open ROM/CD image");\r
411 goto fail;\r
412 }\r
413\r
414 if (cd_state < 0) {\r
415 me_update_msg("Invalid CD image");\r
416 goto fail;\r
417 }\r
418\r
419 menu_romload_prepare(used_rom_name); // also CD load\r
420\r
421 PicoCartUnload();\r
422 rom_loaded = 0;\r
423\r
424 if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
425 if (ret == 2) me_update_msg("Out of memory");\r
426 else if (ret == 3) me_update_msg("Read failed");\r
427 else me_update_msg("PicoCartLoad() failed.");\r
428 goto fail2;\r
429 }\r
430 pm_close(rom);\r
431 rom = NULL;\r
432\r
433 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
434 if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
435 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
436 if (rom_data) free(rom_data);\r
437 me_update_msg("Not a ROM selected.");\r
438 goto fail2;\r
439 }\r
440\r
441 // load config for this ROM (do this before insert to get correct region)\r
442 if (!(PicoAHW & PAHW_MCD))\r
443 memcpy(id_header, rom_data + 0x100, sizeof(id_header));\r
444 if (!cfg_loaded) {\r
445 ret = emu_read_config(1, 1);\r
446 if (!ret) emu_read_config(0, 1);\r
447 }\r
448\r
449 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
450 if (PicoCartInsert(rom_data, rom_size)) {\r
451 me_update_msg("Failed to load ROM.");\r
452 goto fail2;\r
453 }\r
454\r
455 // insert CD if it was detected\r
456 if (cd_state != CIT_NOT_CD) {\r
457 ret = Insert_CD(rom_fname, cd_state);\r
458 if (ret != 0) {\r
459 me_update_msg("Insert_CD() failed, invalid CD image?");\r
460 goto fail2;\r
461 }\r
462 }\r
463\r
464 menu_romload_end();\r
465\r
466 if (PicoPatches) {\r
467 PicoPatchPrepare();\r
468 PicoPatchApply();\r
469 }\r
470\r
471 // additional movie stuff\r
472 if (movie_data)\r
473 {\r
474 if (movie_data[0x14] == '6')\r
475 PicoOpt |= POPT_6BTN_PAD; // 6 button pad\r
476 else PicoOpt &= ~POPT_6BTN_PAD;\r
477 PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing\r
478 if (movie_data[0xF] >= 'A') {\r
479 if (movie_data[0x16] & 0x80) {\r
480 PicoRegionOverride = 8;\r
481 } else {\r
482 PicoRegionOverride = 4;\r
483 }\r
484 PicoReset();\r
485 // TODO: bits 6 & 5\r
486 }\r
487 movie_data[0x18+30] = 0;\r
488 plat_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);\r
489 }\r
490 else\r
491 {\r
492 PicoOpt &= ~POPT_DIS_VDP_FIFO;\r
493 plat_status_msg(Pico.m.pal ? "PAL SYSTEM / 50 FPS" : "NTSC SYSTEM / 60 FPS");\r
494 }\r
495\r
496 // load SRAM for this ROM\r
497 if (currentConfig.EmuOpt & EOPT_EN_SRAM)\r
498 emu_save_load_game(1, 1);\r
499\r
500 strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);\r
501 rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;\r
502 rom_loaded = 1;\r
503 return 1;\r
504\r
505fail2:\r
506 menu_romload_end();\r
507fail:\r
508 if (rom != NULL) pm_close(rom);\r
509 return 0;\r
510}\r
511\r
512static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
513{\r
514 char *p;\r
515 int prefix_len = 0;\r
516\r
517 // make save filename\r
518 p = rom_fname_loaded + strlen(rom_fname_loaded) - 1;\r
519 for (; p >= rom_fname_loaded && *p != PATH_SEP_C; p--); p++;\r
520 *dst = 0;\r
521 if (prefix) {\r
522 int len = plat_get_root_dir(dst, 512);\r
523 strcpy(dst + len, prefix);\r
524 prefix_len = len + strlen(prefix);\r
525 }\r
526#ifdef UIQ3\r
527 else p = rom_fname_loaded; // backward compatibility\r
528#endif\r
529 strncpy(dst + prefix_len, p, 511-prefix_len);\r
530 dst[511-8] = 0;\r
531 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
532 if (ext) strcat(dst, ext);\r
533}\r
534\r
535void emu_make_path(char *buff, const char *end, int size)\r
536{\r
537 int pos, end_len;\r
538\r
539 end_len = strlen(end);\r
540 pos = plat_get_root_dir(buff, size);\r
541 strncpy(buff + pos, end, size - pos);\r
542 buff[size - 1] = 0;\r
543 if (pos + end_len > size - 1)\r
544 lprintf("Warning: path truncated: %s\n", buff);\r
545}\r
546\r
547static void make_config_cfg(char *cfg_buff_512)\r
548{\r
549 emu_make_path(cfg_buff_512, PicoConfigFile, 512-6);\r
550 if (config_slot != 0)\r
551 {\r
552 char *p = strrchr(cfg_buff_512, '.');\r
553 if (p == NULL)\r
554 p = cfg_buff_512 + strlen(cfg_buff_512);\r
555 sprintf(p, ".%i.cfg", config_slot);\r
556 }\r
557 cfg_buff_512[511] = 0;\r
558}\r
559\r
560void emu_set_defconfig(void)\r
561{\r
562 memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
563 PicoOpt = currentConfig.s_PicoOpt;\r
564 PsndRate = currentConfig.s_PsndRate;\r
565 PicoRegionOverride = currentConfig.s_PicoRegion;\r
566 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
567 PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
568}\r
569\r
570int emu_read_config(int game, int no_defaults)\r
571{\r
572 char cfg[512];\r
573 int ret;\r
574\r
575 if (!game)\r
576 {\r
577 if (!no_defaults)\r
578 emu_set_defconfig();\r
579 make_config_cfg(cfg);\r
580 ret = config_readsect(cfg, NULL);\r
581 }\r
582 else\r
583 {\r
584 char *sect = emu_make_rom_id();\r
585\r
586 // try new .cfg way\r
587 if (config_slot != 0)\r
588 sprintf(cfg, "game.%i.cfg", config_slot);\r
589 else strcpy(cfg, "game.cfg");\r
590\r
591 ret = -1;\r
592 if (config_havesect(cfg, sect))\r
593 {\r
594 // read user's config\r
595 int vol = currentConfig.volume;\r
596 emu_set_defconfig();\r
597 ret = config_readsect(cfg, sect);\r
598 currentConfig.volume = vol; // make vol global (bah)\r
599 }\r
600 else\r
601 {\r
602 // read global config, and apply game_def.cfg on top\r
603 make_config_cfg(cfg);\r
604 config_readsect(cfg, NULL);\r
605 ret = config_readsect("game_def.cfg", sect);\r
606 }\r
607\r
608 if (ret == 0)\r
609 {\r
610 lprintf("loaded cfg from sect \"%s\"\n", sect);\r
611 }\r
612 }\r
613\r
614 plat_validate_config();\r
615\r
616 // some sanity checks\r
617#ifdef PSP\r
618 /* TODO: mv to plat_validate_config() */\r
619 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
620 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;\r
621 if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2) currentConfig.gamma2 = 0;\r
622#endif\r
623 if (currentConfig.volume < 0 || currentConfig.volume > 99)\r
624 currentConfig.volume = 50;\r
625\r
626 if (ret == 0)\r
627 config_slot_current = config_slot;\r
628\r
629 return (ret == 0);\r
630}\r
631\r
632\r
633int emu_write_config(int is_game)\r
634{\r
635 char cfg[512], *game_sect = NULL;\r
636 int ret, write_lrom = 0;\r
637\r
638 if (!is_game)\r
639 {\r
640 make_config_cfg(cfg);\r
641 write_lrom = 1;\r
642 } else {\r
643 if (config_slot != 0)\r
644 sprintf(cfg, "game.%i.cfg", config_slot);\r
645 else strcpy(cfg, "game.cfg");\r
646 game_sect = emu_make_rom_id();\r
647 lprintf("emu_write_config: sect \"%s\"\n", game_sect);\r
648 }\r
649\r
650 lprintf("emu_write_config: %s ", cfg);\r
651 ret = config_writesect(cfg, game_sect);\r
652 if (write_lrom) config_writelrom(cfg);\r
653#ifndef NO_SYNC\r
654 sync();\r
655#endif\r
656 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");\r
657\r
658 if (ret == 0) config_slot_current = config_slot;\r
659 return ret == 0;\r
660}\r
661\r
662\r
663/* always using built-in font */\r
664\r
665#define mk_text_out(name, type, val, topleft, step_x, step_y) \\r
666void name(int x, int y, const char *text) \\r
667{ \\r
668 int i, l, len = strlen(text); \\r
669 type *screen = (type *)(topleft) + x * step_x + y * step_y; \\r
670 \\r
671 for (i = 0; i < len; i++, screen += 8 * step_x) \\r
672 { \\r
673 for (l = 0; l < 8; l++) \\r
674 { \\r
675 unsigned char fd = fontdata8x8[text[i] * 8 + l];\\r
676 type *s = screen + l * step_y; \\r
677 if (fd&0x80) s[step_x * 0] = val; \\r
678 if (fd&0x40) s[step_x * 1] = val; \\r
679 if (fd&0x20) s[step_x * 2] = val; \\r
680 if (fd&0x10) s[step_x * 3] = val; \\r
681 if (fd&0x08) s[step_x * 4] = val; \\r
682 if (fd&0x04) s[step_x * 5] = val; \\r
683 if (fd&0x02) s[step_x * 6] = val; \\r
684 if (fd&0x01) s[step_x * 7] = val; \\r
685 } \\r
686 } \\r
687}\r
688\r
689mk_text_out(emu_text_out8, unsigned char, 0xf0, g_screen_ptr, 1, g_screen_width)\r
690mk_text_out(emu_text_out16, unsigned short, 0xffff, g_screen_ptr, 1, g_screen_width)\r
691mk_text_out(emu_text_out8_rot, unsigned char, 0xf0,\r
692 (char *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
693mk_text_out(emu_text_out16_rot, unsigned short, 0xffff,\r
694 (short *)g_screen_ptr + (g_screen_width - 1) * g_screen_height, -g_screen_height, 1)\r
695\r
696#undef mk_text_out\r
697\r
698\r
699void update_movie(void)\r
700{\r
701 int offs = Pico.m.frame_count*3 + 0x40;\r
702 if (offs+3 > movie_size) {\r
703 free(movie_data);\r
704 movie_data = 0;\r
705 plat_status_msg("END OF MOVIE.");\r
706 lprintf("END OF MOVIE.\n");\r
707 } else {\r
708 // MXYZ SACB RLDU\r
709 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
710 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // C\r
711 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // A\r
712 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // B\r
713 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
714 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C\r
715 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A\r
716 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B\r
717 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
718 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
719 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
720 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
721 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
722 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
723 }\r
724}\r
725\r
726\r
727static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
728{\r
729 return gzread(file, p, _n);\r
730}\r
731\r
732\r
733static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
734{\r
735 return gzwrite(file, p, _n);\r
736}\r
737\r
738static int try_ropen_file(const char *fname)\r
739{\r
740 FILE *f;\r
741\r
742 f = fopen(fname, "rb");\r
743 if (f) {\r
744 fclose(f);\r
745 return 1;\r
746 }\r
747 return 0;\r
748}\r
749\r
750char *emu_get_save_fname(int load, int is_sram, int slot)\r
751{\r
752 static char saveFname[512];\r
753 char ext[16];\r
754\r
755 if (is_sram)\r
756 {\r
757 romfname_ext(saveFname, (PicoAHW&1) ? "brm"PATH_SEP : "srm"PATH_SEP, (PicoAHW&1) ? ".brm" : ".srm");\r
758 if (load) {\r
759 if (try_ropen_file(saveFname)) return saveFname;\r
760 // try in current dir..\r
761 romfname_ext(saveFname, NULL, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");\r
762 if (try_ropen_file(saveFname)) return saveFname;\r
763 return NULL; // give up\r
764 }\r
765 }\r
766 else\r
767 {\r
768 ext[0] = 0;\r
769 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
770 strcat(ext, (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds");\r
771\r
772 romfname_ext(saveFname, "mds" PATH_SEP, ext);\r
773 if (load) {\r
774 if (try_ropen_file(saveFname)) return saveFname;\r
775 romfname_ext(saveFname, NULL, ext);\r
776 if (try_ropen_file(saveFname)) return saveFname;\r
777 // no gzipped states, search for non-gzipped\r
778 if (currentConfig.EmuOpt & EOPT_GZIP_SAVES)\r
779 {\r
780 ext[0] = 0;\r
781 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
782 strcat(ext, ".mds");\r
783\r
784 romfname_ext(saveFname, "mds"PATH_SEP, ext);\r
785 if (try_ropen_file(saveFname)) return saveFname;\r
786 romfname_ext(saveFname, NULL, ext);\r
787 if (try_ropen_file(saveFname)) return saveFname;\r
788 }\r
789 return NULL;\r
790 }\r
791 }\r
792\r
793 return saveFname;\r
794}\r
795\r
796int emu_check_save_file(int slot)\r
797{\r
798 return emu_get_save_fname(1, 0, slot) ? 1 : 0;\r
799}\r
800\r
801void emu_setSaveStateCbs(int gz)\r
802{\r
803 if (gz) {\r
804 areaRead = gzRead2;\r
805 areaWrite = gzWrite2;\r
806 areaEof = (areaeof *) gzeof;\r
807 areaSeek = (areaseek *) gzseek;\r
808 areaClose = (areaclose *) gzclose;\r
809 } else {\r
810 areaRead = (arearw *) fread;\r
811 areaWrite = (arearw *) fwrite;\r
812 areaEof = (areaeof *) feof;\r
813 areaSeek = (areaseek *) fseek;\r
814 areaClose = (areaclose *) fclose;\r
815 }\r
816}\r
817\r
818int emu_save_load_game(int load, int sram)\r
819{\r
820 int ret = 0;\r
821 char *saveFname;\r
822\r
823 // make save filename\r
824 saveFname = emu_get_save_fname(load, sram, state_slot);\r
825 if (saveFname == NULL) {\r
826 if (!sram)\r
827 plat_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");\r
828 return -1;\r
829 }\r
830\r
831 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
832\r
833 if (sram)\r
834 {\r
835 FILE *sramFile;\r
836 int sram_size;\r
837 unsigned char *sram_data;\r
838 int truncate = 1;\r
839 if (PicoAHW & PAHW_MCD)\r
840 {\r
841 if (PicoOpt&POPT_EN_MCD_RAMCART) {\r
842 sram_size = 0x12000;\r
843 sram_data = SRam.data;\r
844 if (sram_data)\r
845 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
846 } else {\r
847 sram_size = 0x2000;\r
848 sram_data = Pico_mcd->bram;\r
849 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
850 }\r
851 } else {\r
852 sram_size = SRam.end-SRam.start+1;\r
853 if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
854 sram_data = SRam.data;\r
855 }\r
856 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
857\r
858 if (load)\r
859 {\r
860 sramFile = fopen(saveFname, "rb");\r
861 if(!sramFile) return -1;\r
862 fread(sram_data, 1, sram_size, sramFile);\r
863 fclose(sramFile);\r
864 if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))\r
865 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
866 } else {\r
867 // sram save needs some special processing\r
868 // see if we have anything to save\r
869 for (; sram_size > 0; sram_size--)\r
870 if (sram_data[sram_size-1]) break;\r
871\r
872 if (sram_size) {\r
873 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
874 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
875 if (!sramFile) return -1;\r
876 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
877 ret = (ret != sram_size) ? -1 : 0;\r
878 fclose(sramFile);\r
879#ifndef NO_SYNC\r
880 sync();\r
881#endif\r
882 }\r
883 }\r
884 return ret;\r
885 }\r
886 else\r
887 {\r
888 void *PmovFile = NULL;\r
889 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)\r
890 {\r
891 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
892 emu_setSaveStateCbs(1);\r
893 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
894 }\r
895 }\r
896 else\r
897 {\r
898 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
899 emu_setSaveStateCbs(0);\r
900 }\r
901 }\r
902 if(PmovFile) {\r
903 ret = PmovState(load ? 6 : 5, PmovFile);\r
904 areaClose(PmovFile);\r
905 PmovFile = 0;\r
906 if (load) Pico.m.dirtyPal=1;\r
907#ifndef NO_SYNC\r
908 else sync();\r
909#endif\r
910 }\r
911 else ret = -1;\r
912 if (!ret)\r
913 plat_status_msg(load ? "GAME LOADED" : "GAME SAVED");\r
914 else\r
915 {\r
916 plat_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");\r
917 ret = -1;\r
918 }\r
919\r
920 return ret;\r
921 }\r
922}\r
923\r
924void emu_set_fastforward(int set_on)\r
925{\r
926 static void *set_PsndOut = NULL;\r
927 static int set_Frameskip, set_EmuOpt, is_on = 0;\r
928\r
929 if (set_on && !is_on) {\r
930 set_PsndOut = PsndOut;\r
931 set_Frameskip = currentConfig.Frameskip;\r
932 set_EmuOpt = currentConfig.EmuOpt;\r
933 PsndOut = NULL;\r
934 currentConfig.Frameskip = 8;\r
935 currentConfig.EmuOpt &= ~4;\r
936 currentConfig.EmuOpt |= 0x40000;\r
937 is_on = 1;\r
938 plat_status_msg("FAST FORWARD");\r
939 }\r
940 else if (!set_on && is_on) {\r
941 PsndOut = set_PsndOut;\r
942 currentConfig.Frameskip = set_Frameskip;\r
943 currentConfig.EmuOpt = set_EmuOpt;\r
944 PsndRerate(1);\r
945 is_on = 0;\r
946 }\r
947}\r
948\r
949static void emu_msg_tray_open(void)\r
950{\r
951 plat_status_msg("CD tray opened");\r
952}\r
953\r
954void emu_reset_game(void)\r
955{\r
956 PicoReset();\r
957 reset_timing = 1;\r
958}\r
959\r
960void run_events_pico(unsigned int events)\r
961{\r
962 int lim_x;\r
963\r
964 if (events & PEV_PICO_SWINP) {\r
965 pico_inp_mode++;\r
966 if (pico_inp_mode > 2)\r
967 pico_inp_mode = 0;\r
968 switch (pico_inp_mode) {\r
969 case 2: plat_status_msg("Input: Pen on Pad"); break;\r
970 case 1: plat_status_msg("Input: Pen on Storyware"); break;\r
971 case 0: plat_status_msg("Input: Joystick");\r
972 PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
973 break;\r
974 }\r
975 }\r
976 if (events & PEV_PICO_PPREV) {\r
977 PicoPicohw.page--;\r
978 if (PicoPicohw.page < 0)\r
979 PicoPicohw.page = 0;\r
980 plat_status_msg("Page %i", PicoPicohw.page);\r
981 }\r
982 if (events & PEV_PICO_PNEXT) {\r
983 PicoPicohw.page++;\r
984 if (PicoPicohw.page > 6)\r
985 PicoPicohw.page = 6;\r
986 plat_status_msg("Page %i", PicoPicohw.page);\r
987 }\r
988\r
989 if (pico_inp_mode == 0)\r
990 return;\r
991\r
992 /* handle other input modes */\r
993 if (PicoPad[0] & 1) pico_pen_y--;\r
994 if (PicoPad[0] & 2) pico_pen_y++;\r
995 if (PicoPad[0] & 4) pico_pen_x--;\r
996 if (PicoPad[0] & 8) pico_pen_x++;\r
997 PicoPad[0] &= ~0x0f; // release UDLR\r
998\r
999 lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
1000 if (pico_pen_y < 8)\r
1001 pico_pen_y = 8;\r
1002 if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)\r
1003 pico_pen_y = 224 - PICO_PEN_ADJUST_Y;\r
1004 if (pico_pen_x < 0)\r
1005 pico_pen_x = 0;\r
1006 if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)\r
1007 pico_pen_x = lim_x - PICO_PEN_ADJUST_X;\r
1008\r
1009 PicoPicohw.pen_pos[0] = pico_pen_x;\r
1010 if (!(Pico.video.reg[12] & 1))\r
1011 PicoPicohw.pen_pos[0] += pico_pen_x / 4;\r
1012 PicoPicohw.pen_pos[0] += 0x3c;\r
1013 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
1014}\r
1015\r
1016static void do_turbo(int *pad, int acts)\r
1017{\r
1018 static int turbo_pad = 0;\r
1019 static unsigned char turbo_cnt[3] = { 0, 0, 0 };\r
1020 int inc = currentConfig.turbo_rate * 2;\r
1021\r
1022 if (acts & 0x1000) {\r
1023 turbo_cnt[0] += inc;\r
1024 if (turbo_cnt[0] >= 60)\r
1025 turbo_pad ^= 0x10, turbo_cnt[0] = 0;\r
1026 }\r
1027 if (acts & 0x2000) {\r
1028 turbo_cnt[1] += inc;\r
1029 if (turbo_cnt[1] >= 60)\r
1030 turbo_pad ^= 0x20, turbo_cnt[1] = 0;\r
1031 }\r
1032 if (acts & 0x4000) {\r
1033 turbo_cnt[2] += inc;\r
1034 if (turbo_cnt[2] >= 60)\r
1035 turbo_pad ^= 0x40, turbo_cnt[2] = 0;\r
1036 }\r
1037 *pad |= turbo_pad & (acts >> 8);\r
1038}\r
1039\r
1040static void run_events_ui(unsigned int which)\r
1041{\r
1042 if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))\r
1043 {\r
1044 int do_it = 1;\r
1045 if ( emu_check_save_file(state_slot) &&\r
1046 (((which & PEV_STATE_LOAD) && (currentConfig.EmuOpt & EOPT_CONFIRM_LOAD)) ||\r
1047 ((which & PEV_STATE_SAVE) && (currentConfig.EmuOpt & EOPT_CONFIRM_SAVE))) )\r
1048 {\r
1049 const char *nm;\r
1050 char tmp[64];\r
1051 int keys, len;\r
1052\r
1053 strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");\r
1054 len = strlen(tmp);\r
1055 nm = in_get_key_name(-1, -PBTN_MA3);\r
1056 snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
1057 len = strlen(tmp);\r
1058 nm = in_get_key_name(-1, -PBTN_MBACK);\r
1059 snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
1060\r
1061 plat_status_msg_busy_first(tmp);\r
1062\r
1063 in_set_blocking(1);\r
1064 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r
1065 ;\r
1066 while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )\r
1067 ;\r
1068 if (keys & PBTN_MBACK)\r
1069 do_it = 0;\r
1070 while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))\r
1071 ;\r
1072 in_set_blocking(0);\r
1073 }\r
1074 if (do_it) {\r
1075 plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING GAME" : "SAVING GAME");\r
1076 PicoStateProgressCB = plat_status_msg_busy_next;\r
1077 emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);\r
1078 PicoStateProgressCB = NULL;\r
1079 }\r
1080 }\r
1081 if (which & PEV_SWITCH_RND)\r
1082 {\r
1083 plat_video_toggle_renderer(1, 0);\r
1084 }\r
1085 if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))\r
1086 {\r
1087 if (which & PEV_SSLOT_PREV) {\r
1088 state_slot -= 1;\r
1089 if (state_slot < 0)\r
1090 state_slot = 9;\r
1091 } else {\r
1092 state_slot += 1;\r
1093 if (state_slot > 9)\r
1094 state_slot = 0;\r
1095 }\r
1096\r
1097 plat_status_msg("SAVE SLOT %i [%s]", state_slot,\r
1098 emu_check_save_file(state_slot) ? "USED" : "FREE");\r
1099 }\r
1100 if (which & PEV_MENU)\r
1101 engineState = PGS_Menu;\r
1102}\r
1103\r
1104void emu_update_input(void)\r
1105{\r
1106 static int prev_events = 0;\r
1107 int actions[IN_BINDTYPE_COUNT] = { 0, };\r
1108 int pl_actions[2];\r
1109 int events;\r
1110\r
1111 in_update(actions);\r
1112\r
1113 pl_actions[0] = actions[IN_BINDTYPE_PLAYER12];\r
1114 pl_actions[1] = actions[IN_BINDTYPE_PLAYER12] >> 16;\r
1115\r
1116 PicoPad[0] = pl_actions[0] & 0xfff;\r
1117 PicoPad[1] = pl_actions[1] & 0xfff;\r
1118\r
1119 if (pl_actions[0] & 0x7000)\r
1120 do_turbo(&PicoPad[0], pl_actions[0]);\r
1121 if (pl_actions[1] & 0x7000)\r
1122 do_turbo(&PicoPad[1], pl_actions[1]);\r
1123\r
1124 events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1125\r
1126 // volume is treated in special way and triggered every frame\r
1127 if (events & (PEV_VOL_DOWN|PEV_VOL_UP))\r
1128 plat_update_volume(1, events & PEV_VOL_UP);\r
1129\r
1130 if ((events ^ prev_events) & PEV_FF) {\r
1131 emu_set_fastforward(events & PEV_FF);\r
1132 plat_update_volume(0, 0);\r
1133 reset_timing = 1;\r
1134 }\r
1135\r
1136 events &= ~prev_events;\r
1137\r
1138 if (PicoAHW == PAHW_PICO)\r
1139 run_events_pico(events);\r
1140 if (events)\r
1141 run_events_ui(events);\r
1142 if (movie_data)\r
1143 update_movie();\r
1144\r
1145 prev_events = actions[IN_BINDTYPE_EMU] & PEV_MASK;\r
1146}\r
1147\r
1148static void mkdir_path(char *path_with_reserve, int pos, const char *name)\r
1149{\r
1150 strcpy(path_with_reserve + pos, name);\r
1151 if (plat_is_dir(path_with_reserve))\r
1152 return;\r
1153 if (mkdir(path_with_reserve, 0777) < 0)\r
1154 lprintf("failed to create: %s\n", path_with_reserve);\r
1155}\r
1156\r
1157void emu_init(void)\r
1158{\r
1159 char path[512];\r
1160 int pos;\r
1161\r
1162 /* make dirs for saves */\r
1163 pos = plat_get_root_dir(path, sizeof(path) - 4);\r
1164 mkdir_path(path, pos, "mds");\r
1165 mkdir_path(path, pos, "srm");\r
1166 mkdir_path(path, pos, "brm");\r
1167\r
1168 make_config_cfg(path);\r
1169 config_readlrom(path);\r
1170\r
1171 PicoInit();\r
1172 PicoMessage = plat_status_msg_busy_next;\r
1173 PicoMCDopenTray = emu_msg_tray_open;\r
1174 PicoMCDcloseTray = menu_loop_tray;\r
1175}\r
1176\r
1177void emu_finish(void)\r
1178{\r
1179 // save SRAM\r
1180 if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {\r
1181 emu_save_load_game(0, 1);\r
1182 SRam.changed = 0;\r
1183 }\r
1184\r
1185 if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG)) {\r
1186 char cfg[512];\r
1187 make_config_cfg(cfg);\r
1188 config_writelrom(cfg);\r
1189#ifndef NO_SYNC\r
1190 sync();\r
1191#endif\r
1192 }\r
1193\r
1194 PicoExit();\r
1195}\r
1196\r
PicoDrive's frontend in a lib