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sound fixes for Ferrari GP
[libpicofe.git] / gp2x / 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#include <sys/time.h>\r
9#include <sys/stat.h>\r
10#include <sys/types.h>\r
11#include <linux/limits.h>\r
12#include <ctype.h>\r
13#include <unistd.h>\r
14\r
15#include <stdarg.h>\r
16\r
17#include "emu.h"\r
18#include "gp2x.h"\r
19#include "usbjoy.h"\r
20#include "menu.h"\r
21#include "../common/arm_utils.h"\r
22#include "../common/fonts.h"\r
23#include "cpuctrl.h"\r
24\r
25#include <Pico/PicoInt.h>\r
26#include <Pico/Patch.h>\r
27#include <zlib/zlib.h>\r
28\r
29\r
30#ifdef BENCHMARK\r
31#define OSD_FPS_X 220\r
32#else\r
33#define OSD_FPS_X 260\r
34#endif\r
35\r
36\r
37int engineState;\r
38int select_exits = 0;\r
39char *PicoConfigFile = "picoconfig.bin";\r
40currentConfig_t currentConfig;\r
41\r
42char romFileName[PATH_MAX];\r
43unsigned char *rom_data = NULL;\r
44\r
45extern int crashed_940;\r
46\r
47static short sndBuffer[2*44100/50];\r
48static char noticeMsg[64]; // notice msg to draw\r
49static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
50static int osd_fps_x;\r
51static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos\r
52static int gp2x_old_gamma = 100;\r
53static unsigned char *movie_data = NULL;\r
54static int movie_size = 0;\r
55unsigned char *PicoDraw2FB = NULL; // temporary buffer for alt renderer\r
56int state_slot = 0;\r
57int reset_timing = 0;\r
58int config_slot = 0, config_slot_current = 0;\r
59\r
60\r
61// utilities\r
62static void strlwr(char* string)\r
63{\r
64 while ( (*string++ = (char)tolower(*string)) );\r
65}\r
66\r
67static int try_rfn_cut(void)\r
68{\r
69 FILE *tmp;\r
70 char *p;\r
71\r
72 p = romFileName + strlen(romFileName) - 1;\r
73 for (; p > romFileName; p--)\r
74 if (*p == '.') break;\r
75 *p = 0;\r
76\r
77 if((tmp = fopen(romFileName, "rb"))) {\r
78 fclose(tmp);\r
79 return 1;\r
80 }\r
81 return 0;\r
82}\r
83\r
84static void get_ext(char *file, char *ext)\r
85{\r
86 char *p;\r
87\r
88 p = file + strlen(file) - 4;\r
89 if (p < file) p = file;\r
90 strncpy(ext, p, 4);\r
91 ext[4] = 0;\r
92 strlwr(ext);\r
93}\r
94\r
95char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
96char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };\r
97char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
98\r
99extern char **g_argv;\r
100\r
101int find_bios(int region, char **bios_file)\r
102{\r
103 static char bios_path[1024];\r
104 int i, j, count;\r
105 char **files;\r
106 FILE *f = NULL;\r
107\r
108 if (region == 4) { // US\r
109 files = biosfiles_us;\r
110 count = sizeof(biosfiles_us) / sizeof(char *);\r
111 } else if (region == 8) { // EU\r
112 files = biosfiles_eu;\r
113 count = sizeof(biosfiles_eu) / sizeof(char *);\r
114 } else if (region == 1 || region == 2) {\r
115 files = biosfiles_jp;\r
116 count = sizeof(biosfiles_jp) / sizeof(char *);\r
117 } else {\r
118 return 0;\r
119 }\r
120\r
121 for (i = 0; i < count; i++)\r
122 {\r
123 strncpy(bios_path, g_argv[0], 1023);\r
124 bios_path[1024-32] = 0;\r
125 for (j = strlen(bios_path); j > 0; j--)\r
126 if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }\r
127 strcat(bios_path, files[i]);\r
128 strcat(bios_path, ".bin");\r
129 f = fopen(bios_path, "rb");\r
130 if (f) break;\r
131\r
132 bios_path[strlen(bios_path) - 4] = 0;\r
133 strcat(bios_path, ".zip");\r
134 f = fopen(bios_path, "rb");\r
135 if (f) break;\r
136 }\r
137\r
138 if (f) {\r
139 printf("using bios: %s\n", bios_path);\r
140 fclose(f);\r
141 if (bios_file) *bios_file = bios_path;\r
142 return 1;\r
143 } else {\r
144 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
145 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
146 printf("%s\n", menuErrorMsg);\r
147 return 0;\r
148 }\r
149}\r
150\r
151/* checks if romFileName points to valid MegaCD image\r
152 * if so, checks for suitable BIOS */\r
153int emu_cd_check(char **bios_file)\r
154{\r
155 unsigned char buf[32];\r
156 pm_file *cd_f;\r
157 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
158\r
159 cd_f = pm_open(romFileName);\r
160 if (!cd_f) return 0; // let the upper level handle this\r
161\r
162 if (pm_read(buf, 32, cd_f) != 32) {\r
163 pm_close(cd_f);\r
164 return 0;\r
165 }\r
166\r
167 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
168 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
169 if (type == 0) {\r
170 pm_close(cd_f);\r
171 return 0;\r
172 }\r
173\r
174 /* it seems we have a CD image here. Try to detect region now.. */\r
175 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
176 pm_read(buf, 1, cd_f);\r
177 pm_close(cd_f);\r
178\r
179 if (buf[0] == 0x64) region = 8; // EU\r
180 if (buf[0] == 0xa1) region = 1; // JAP\r
181\r
182 printf("detected %s Sega/Mega CD image with %s region\n",\r
183 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
184\r
185 if (PicoRegionOverride) {\r
186 region = PicoRegionOverride;\r
187 printf("overrided region to %s\n", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
188 }\r
189\r
190 if (bios_file == NULL) return type;\r
191\r
192 if (find_bios(region, bios_file))\r
193 return type; // CD and BIOS detected\r
194\r
195 return -1; // CD detected but load failed\r
196}\r
197\r
198int emu_ReloadRom(void)\r
199{\r
200 unsigned int rom_size = 0;\r
201 char *used_rom_name = romFileName;\r
202 char ext[5];\r
203 pm_file *rom;\r
204 int ret, cd_state;\r
205\r
206 printf("emu_ReloadRom(%s)\n", romFileName);\r
207\r
208 get_ext(romFileName, ext);\r
209\r
210 // detect wrong extensions\r
211 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
212 sprintf(menuErrorMsg, "Not a ROM selected.");\r
213 return 0;\r
214 }\r
215\r
216 PicoPatchUnload();\r
217\r
218 // check for movie file\r
219 if(movie_data) {\r
220 free(movie_data);\r
221 movie_data = 0;\r
222 }\r
223 if(!strcmp(ext, ".gmv")) {\r
224 // check for both gmv and rom\r
225 int dummy;\r
226 FILE *movie_file = fopen(romFileName, "rb");\r
227 if(!movie_file) {\r
228 sprintf(menuErrorMsg, "Failed to open movie.");\r
229 return 0;\r
230 }\r
231 fseek(movie_file, 0, SEEK_END);\r
232 movie_size = ftell(movie_file);\r
233 fseek(movie_file, 0, SEEK_SET);\r
234 if(movie_size < 64+3) {\r
235 sprintf(menuErrorMsg, "Invalid GMV file.");\r
236 fclose(movie_file);\r
237 return 0;\r
238 }\r
239 movie_data = malloc(movie_size);\r
240 if(movie_data == NULL) {\r
241 sprintf(menuErrorMsg, "low memory.");\r
242 fclose(movie_file);\r
243 return 0;\r
244 }\r
245 fread(movie_data, 1, movie_size, movie_file);\r
246 fclose(movie_file);\r
247 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
248 sprintf(menuErrorMsg, "Invalid GMV file.");\r
249 return 0;\r
250 }\r
251 dummy = try_rfn_cut() || try_rfn_cut();\r
252 if (!dummy) {\r
253 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
254 return 0;\r
255 }\r
256 get_ext(romFileName, ext);\r
257 }\r
258 else if (!strcmp(ext, ".pat")) {\r
259 int dummy;\r
260 PicoPatchLoad(romFileName);\r
261 dummy = try_rfn_cut() || try_rfn_cut();\r
262 if (!dummy) {\r
263 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
264 return 0;\r
265 }\r
266 get_ext(romFileName, ext);\r
267 }\r
268\r
269 if ((PicoMCD & 1) && Pico_mcd != NULL)\r
270 Stop_CD();\r
271\r
272 // check for MegaCD image\r
273 cd_state = emu_cd_check(&used_rom_name);\r
274 if (cd_state > 0) {\r
275 PicoMCD |= 1;\r
276 get_ext(used_rom_name, ext);\r
277 } else if (cd_state == -1) {\r
278 // bios_help() ?\r
279 return 0;\r
280 } else {\r
281 if (PicoMCD & 1) Stop_CD();\r
282 PicoMCD &= ~1;\r
283 }\r
284\r
285 rom = pm_open(used_rom_name);\r
286 if(!rom) {\r
287 sprintf(menuErrorMsg, "Failed to open rom.");\r
288 return 0;\r
289 }\r
290\r
291 menu_romload_prepare(used_rom_name);\r
292\r
293 if(rom_data) {\r
294 free(rom_data);\r
295 rom_data = 0;\r
296 rom_size = 0;\r
297 }\r
298\r
299 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
300 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
301 printf("%s\n", menuErrorMsg);\r
302 pm_close(rom);\r
303 menu_romload_end();\r
304 return 0;\r
305 }\r
306 pm_close(rom);\r
307 menu_romload_end();\r
308\r
309 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
310 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
311 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
312 if (rom_data) free(rom_data);\r
313 rom_data = 0;\r
314 sprintf(menuErrorMsg, "Not a ROM selected.");\r
315 return 0;\r
316 }\r
317\r
318 // load config for this ROM (do this before insert to get correct region)\r
319 ret = emu_ReadConfig(1, 1);\r
320 if (!ret)\r
321 emu_ReadConfig(0, 1);\r
322\r
323 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
324 if(PicoCartInsert(rom_data, rom_size)) {\r
325 sprintf(menuErrorMsg, "Failed to load ROM.");\r
326 return 0;\r
327 }\r
328\r
329 Pico.m.frame_count = 0;\r
330\r
331 // insert CD if it was detected\r
332 if (cd_state > 0) {\r
333 ret = Insert_CD(romFileName, cd_state == 2);\r
334 if (ret != 0) {\r
335 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
336 printf("%s\n", menuErrorMsg);\r
337 return 0;\r
338 }\r
339 }\r
340\r
341 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
342 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
343 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
344\r
345 if (PicoPatches) {\r
346 PicoPatchPrepare();\r
347 PicoPatchApply();\r
348 }\r
349\r
350 // additional movie stuff\r
351 if(movie_data) {\r
352 if(movie_data[0x14] == '6')\r
353 PicoOpt |= 0x20; // 6 button pad\r
354 else PicoOpt &= ~0x20;\r
355 PicoOpt |= 0x40; // accurate timing\r
356 if(movie_data[0xF] >= 'A') {\r
357 if(movie_data[0x16] & 0x80) {\r
358 PicoRegionOverride = 8;\r
359 } else {\r
360 PicoRegionOverride = 4;\r
361 }\r
362 PicoReset(0);\r
363 // TODO: bits 6 & 5\r
364 }\r
365 movie_data[0x18+30] = 0;\r
366 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
367 }\r
368 else\r
369 {\r
370 if(Pico.m.pal) {\r
371 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
372 } else {\r
373 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
374 }\r
375 }\r
376 gettimeofday(&noticeMsgTime, 0);\r
377\r
378 // load SRAM for this ROM\r
379 if(currentConfig.EmuOpt & 1)\r
380 emu_SaveLoadGame(1, 1);\r
381\r
382 return 1;\r
383}\r
384\r
385\r
386static void emu_msg_cb(const char *msg);\r
387static void emu_msg_tray_open(void);\r
388\r
389void emu_Init(void)\r
390{\r
391 // make temp buffer for alt renderer\r
392 PicoDraw2FB = malloc((8+320)*(8+240+8));\r
393 if (!PicoDraw2FB)\r
394 {\r
395 printf("PicoDraw2FB == 0\n");\r
396 }\r
397\r
398 // make dirs for saves, cfgs, etc.\r
399 mkdir("mds", 0777);\r
400 mkdir("srm", 0777);\r
401 mkdir("brm", 0777);\r
402 mkdir("cfg", 0777);\r
403\r
404 PicoInit();\r
405 PicoMessage = emu_msg_cb;\r
406 PicoMCDopenTray = emu_msg_tray_open;\r
407 PicoMCDcloseTray = menu_loop_tray;\r
408}\r
409\r
410\r
411static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
412{\r
413 char *p;\r
414 int prefix_len = 0;\r
415\r
416 // make save filename\r
417 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
418 *dst = 0;\r
419 if (prefix) {\r
420 strcpy(dst, prefix);\r
421 prefix_len = strlen(prefix);\r
422 }\r
423 strncpy(dst + prefix_len, p, 511-prefix_len);\r
424 dst[511-8] = 0;\r
425 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
426 if (ext) strcat(dst, ext);\r
427}\r
428\r
429\r
430static void find_combos(void)\r
431{\r
432 int act, u;\r
433\r
434 // find out which keys and actions are combos\r
435 combo_keys = combo_acts = 0;\r
436 for (act = 0; act < 32; act++)\r
437 {\r
438 int keyc = 0;\r
439 if (act == 16) continue; // player2 flag\r
440 for (u = 0; u < 32; u++)\r
441 {\r
442 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
443 }\r
444 if (keyc > 1)\r
445 {\r
446 // loop again and mark those keys and actions as combo\r
447 for (u = 0; u < 32; u++)\r
448 {\r
449 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
450 combo_keys |= 1 << u;\r
451 combo_acts |= 1 << act;\r
452 }\r
453 }\r
454 }\r
455 }\r
456 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
457}\r
458\r
459\r
460void scaling_update(void)\r
461{\r
462 PicoOpt &= ~0x4100;\r
463 switch (currentConfig.scaling) {\r
464 default: break; // off\r
465 case 1: // hw hor\r
466 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
467 case 3: PicoOpt |= 0x4000; break; // sw hor\r
468 }\r
469}\r
470\r
471\r
472int emu_ReadConfig(int game, int no_defaults)\r
473{\r
474 FILE *f;\r
475 char cfg[512], extbuf[16];\r
476 int bread = 0;\r
477\r
478 if (!game)\r
479 {\r
480 if (!no_defaults)\r
481 {\r
482 // set default config\r
483 memset(&currentConfig, 0, sizeof(currentConfig));\r
484 currentConfig.lastRomFile[0] = 0;\r
485 currentConfig.EmuOpt = 0x1f | 0x600; // | confirm_save, cd_leds\r
486 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940, cd_pcm, cd_cdda\r
487 currentConfig.PsndRate = 22050; // 44100;\r
488 currentConfig.PicoRegion = 0; // auto\r
489 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
490 currentConfig.Frameskip = -1; // auto\r
491 currentConfig.CPUclock = 200;\r
492 currentConfig.volume = 50;\r
493 currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
494 currentConfig.KeyBinds[ 4] = 1<<1;\r
495 currentConfig.KeyBinds[ 2] = 1<<2;\r
496 currentConfig.KeyBinds[ 6] = 1<<3;\r
497 currentConfig.KeyBinds[14] = 1<<4;\r
498 currentConfig.KeyBinds[13] = 1<<5;\r
499 currentConfig.KeyBinds[12] = 1<<6;\r
500 currentConfig.KeyBinds[ 8] = 1<<7;\r
501 currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
502 currentConfig.KeyBinds[10] = 1<<27; // save state\r
503 currentConfig.KeyBinds[11] = 1<<28; // load state\r
504 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
505 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
506 currentConfig.gamma = 100;\r
507 currentConfig.PicoCDBuffers = 64;\r
508 currentConfig.scaling = 0;\r
509 }\r
510 strncpy(cfg, PicoConfigFile, 511);\r
511 if (config_slot != 0)\r
512 {\r
513 char *p = strrchr(cfg, '.');\r
514 if (p == NULL) p = cfg + strlen(cfg);\r
515 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
516 strncpy(p, extbuf, 511 - (p - cfg));\r
517 }\r
518 cfg[511] = 0;\r
519 } else {\r
520 if (config_slot != 0)\r
521 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
522 else strcpy(extbuf, ".pbcfg");\r
523 romfname_ext(cfg, "cfg/", extbuf);\r
524 f = fopen(cfg, "rb");\r
525 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
526 else fclose(f);\r
527 }\r
528\r
529 printf("emu_ReadConfig: %s ", cfg);\r
530 f = fopen(cfg, "rb");\r
531 if (f) {\r
532 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
533 fclose(f);\r
534 }\r
535 printf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
536\r
537 PicoOpt = currentConfig.PicoOpt;\r
538 PsndRate = currentConfig.PsndRate;\r
539 PicoRegionOverride = currentConfig.PicoRegion;\r
540 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
541 PicoCDBuffers = currentConfig.PicoCDBuffers;\r
542 scaling_update();\r
543 // some sanity checks\r
544 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
545 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
546 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
547 // if volume keys are unbound, bind them to volume control\r
548 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
549 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
550 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
551 }\r
552\r
553 if (bread > 0) config_slot_current = config_slot;\r
554 return (bread > 0); // == sizeof(currentConfig));\r
555}\r
556\r
557\r
558int emu_WriteConfig(int game)\r
559{\r
560 FILE *f;\r
561 char cfg[512], extbuf[16];\r
562 int bwrite = 0;\r
563\r
564 if (!game)\r
565 {\r
566 strncpy(cfg, PicoConfigFile, 511);\r
567 if (config_slot != 0)\r
568 {\r
569 char *p = strrchr(cfg, '.');\r
570 if (p == NULL) p = cfg + strlen(cfg);\r
571 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
572 strncpy(p, extbuf, 511 - (p - cfg));\r
573 }\r
574 cfg[511] = 0;\r
575 } else {\r
576 if (config_slot != 0)\r
577 sprintf(extbuf, ".%i.pbcfg", config_slot);\r
578 else strcpy(extbuf, ".pbcfg");\r
579 romfname_ext(cfg, "cfg/", extbuf);\r
580 }\r
581\r
582 printf("emu_WriteConfig: %s ", cfg);\r
583 f = fopen(cfg, "wb");\r
584 if (f) {\r
585 currentConfig.PicoOpt = PicoOpt;\r
586 currentConfig.PsndRate = PsndRate;\r
587 currentConfig.PicoRegion = PicoRegionOverride;\r
588 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
589 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
590 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
591 fflush(f);\r
592 fclose(f);\r
593#ifndef NO_SYNC\r
594 sync();\r
595#endif\r
596 }\r
597 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
598\r
599 if (bwrite == sizeof(currentConfig)) config_slot_current = config_slot;\r
600 return (bwrite == sizeof(currentConfig));\r
601}\r
602\r
603\r
604void emu_Deinit(void)\r
605{\r
606 // save SRAM\r
607 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
608 emu_SaveLoadGame(0, 1);\r
609 SRam.changed = 0;\r
610 }\r
611\r
612 if (!(currentConfig.EmuOpt & 0x20)) {\r
613 FILE *f = fopen(PicoConfigFile, "r+b");\r
614 if (!f) emu_WriteConfig(0);\r
615 else {\r
616 // if we already have config, reload it, except last ROM\r
617 fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);\r
618 fread(&currentConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);\r
619 fseek(f, 0, SEEK_SET);\r
620 fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
621 fflush(f);\r
622 fclose(f);\r
623#ifndef NO_SYNC\r
624 sync();\r
625#endif\r
626 }\r
627 }\r
628\r
629 free(PicoDraw2FB);\r
630\r
631 PicoExit();\r
632\r
633 // restore gamma\r
634 if (gp2x_old_gamma != 100)\r
635 set_gamma(100, 0);\r
636}\r
637\r
638static void text_out8_builtin(int x, int y, const char *text)\r
639{\r
640 int i,l,len=strlen(text);\r
641 unsigned char *screen = (unsigned char *)gp2x_screen + x + y*320;\r
642\r
643 /* always using built-in font */\r
644 for (i = 0; i < len; i++)\r
645 {\r
646 for (l=0;l<8;l++)\r
647 {\r
648 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
649 if (fd&0x80) screen[l*320+0]=0xf0;\r
650 if (fd&0x40) screen[l*320+1]=0xf0;\r
651 if (fd&0x20) screen[l*320+2]=0xf0;\r
652 if (fd&0x10) screen[l*320+3]=0xf0;\r
653 if (fd&0x08) screen[l*320+4]=0xf0;\r
654 if (fd&0x04) screen[l*320+5]=0xf0;\r
655 if (fd&0x02) screen[l*320+6]=0xf0;\r
656 if (fd&0x01) screen[l*320+7]=0xf0;\r
657 }\r
658 screen += 8;\r
659 }\r
660}\r
661\r
662static void text_out16_builtin(int x, int y, const char *text)\r
663{\r
664 int i,l,len=strlen(text);\r
665 unsigned short *screen = (unsigned short *)gp2x_screen + x + y*320;\r
666\r
667 for (i = 0; i < len; i++)\r
668 {\r
669 for (l=0;l<8;l++)\r
670 {\r
671 unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
672 if(fd&0x80) screen[l*320+0]=0xffff;\r
673 if(fd&0x40) screen[l*320+1]=0xffff;\r
674 if(fd&0x20) screen[l*320+2]=0xffff;\r
675 if(fd&0x10) screen[l*320+3]=0xffff;\r
676 if(fd&0x08) screen[l*320+4]=0xffff;\r
677 if(fd&0x04) screen[l*320+5]=0xffff;\r
678 if(fd&0x02) screen[l*320+6]=0xffff;\r
679 if(fd&0x01) screen[l*320+7]=0xffff;\r
680 }\r
681 screen += 8;\r
682 }\r
683}\r
684\r
685\r
686void osd_text(int x, int y, const char *text)\r
687{\r
688 int len = strlen(text)*8;\r
689\r
690 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
691 int *p, i, h;\r
692 x &= ~3; // align x\r
693 len = (len+3) >> 2;\r
694 for (h = 0; h < 8; h++) {\r
695 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
696 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
697 }\r
698 text_out8_builtin(x, y, text);\r
699 } else {\r
700 int *p, i, h;\r
701 x &= ~1; // align x\r
702 len = (len+1) >> 1;\r
703 for (h = 0; h < 8; h++) {\r
704 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
705 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
706 }\r
707 text_out16_builtin(x, y, text);\r
708 }\r
709}\r
710\r
711static void cd_leds(void)\r
712{\r
713 // mmu problems?\r
714// static\r
715 int old_reg;\r
716// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
717 old_reg = Pico_mcd->s68k_regs[0];\r
718\r
719 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
720 // 8-bit modes\r
721 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
722 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
723 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
724 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
725 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
726 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
727 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
728 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
729 } else {\r
730 // 16-bit modes\r
731 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
732 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
733 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
734 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
735 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
736 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
737 }\r
738}\r
739\r
740static int EmuScan16(unsigned int num, void *sdata)\r
741{\r
742 if (!(Pico.video.reg[1]&8)) num += 8;\r
743 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
744\r
745 return 0;\r
746}\r
747\r
748static int EmuScan8(unsigned int num, void *sdata)\r
749{\r
750 if (!(Pico.video.reg[1]&8)) num += 8;\r
751 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
752\r
753 return 0;\r
754}\r
755\r
756int localPal[0x100];\r
757static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
758\r
759static void blit(const char *fps, const char *notice)\r
760{\r
761 int emu_opt = currentConfig.EmuOpt;\r
762\r
763 if (PicoOpt&0x10) {\r
764 // 8bit fast renderer\r
765 if (Pico.m.dirtyPal) {\r
766 Pico.m.dirtyPal = 0;\r
767 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
768 // feed new palette to our device\r
769 gp2x_video_setpalette(localPal, 0x40);\r
770 }\r
771 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
772 } else if (!(emu_opt&0x80)) {\r
773 // 8bit accurate renderer\r
774 if (Pico.m.dirtyPal) {\r
775 Pico.m.dirtyPal = 0;\r
776 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
777 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
778 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
779 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
780 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
781 localPal[0xc0] = 0x0000c000;\r
782 localPal[0xd0] = 0x00c00000;\r
783 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
784 localPal[0xf0] = 0x00ffffff;\r
785 gp2x_video_setpalette(localPal, 0x100);\r
786 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
787 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
788 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
789 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
790 gp2x_video_setpalette(localPal, 0xc0);\r
791 } else {\r
792 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
793 gp2x_video_setpalette(localPal, 0x40);\r
794 }\r
795 }\r
796 }\r
797\r
798 if (notice || (emu_opt & 2)) {\r
799 int h = 232;\r
800 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
801 if (notice) osd_text(4, h, notice);\r
802 if (emu_opt & 2)\r
803 osd_text(osd_fps_x, h, fps);\r
804 }\r
805 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
806 cd_leds();\r
807\r
808 //gp2x_video_wait_vsync();\r
809 gp2x_video_flip();\r
810\r
811 if (!(PicoOpt&0x10)) {\r
812 if (!(Pico.video.reg[1]&8)) {\r
813 if (currentConfig.EmuOpt&0x80) {\r
814 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
815 } else {\r
816 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
817 }\r
818 } else {\r
819 DrawLineDest = gp2x_screen;\r
820 }\r
821 }\r
822}\r
823\r
824\r
825// clears whole screen or just the notice area (in all buffers)\r
826static void clearArea(int full)\r
827{\r
828 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
829 // 8-bit renderers\r
830 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
831 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
832 } else {\r
833 // 16bit accurate renderer\r
834 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
835 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
836 }\r
837}\r
838\r
839\r
840static void vidResetMode(void)\r
841{\r
842 if (PicoOpt&0x10) {\r
843 gp2x_video_changemode(8);\r
844 } else if (currentConfig.EmuOpt&0x80) {\r
845 gp2x_video_changemode(16);\r
846 PicoDrawSetColorFormat(1);\r
847 PicoScan = EmuScan16;\r
848 PicoScan(0, 0);\r
849 } else {\r
850 gp2x_video_changemode(8);\r
851 PicoDrawSetColorFormat(2);\r
852 PicoScan = EmuScan8;\r
853 PicoScan(0, 0);\r
854 }\r
855 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
856 // setup pal for 8-bit modes\r
857 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
858 localPal[0xd0] = 0x00c00000;\r
859 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
860 localPal[0xf0] = 0x00ffffff;\r
861 gp2x_video_setpalette(localPal, 0x100);\r
862 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
863 gp2x_video_flip();\r
864 }\r
865 Pico.m.dirtyPal = 1;\r
866 // reset scaling\r
867 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
868 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
869 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
870}\r
871\r
872\r
873static void emu_msg_cb(const char *msg)\r
874{\r
875 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
876 // 8-bit renderers\r
877 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
878 osd_text(4, 232, msg);\r
879 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
880 } else {\r
881 // 16bit accurate renderer\r
882 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
883 osd_text(4, 232, msg);\r
884 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
885 }\r
886 gettimeofday(&noticeMsgTime, 0);\r
887 noticeMsgTime.tv_sec -= 2;\r
888\r
889 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
890 reset_timing = 1;\r
891}\r
892\r
893static void emu_state_cb(const char *str)\r
894{\r
895 clearArea(0);\r
896 blit("", str);\r
897}\r
898\r
899static void emu_msg_tray_open(void)\r
900{\r
901 strcpy(noticeMsg, "CD tray opened");\r
902 gettimeofday(&noticeMsgTime, 0);\r
903}\r
904\r
905static void RunEvents(unsigned int which)\r
906{\r
907 if(which & 0x1800) { // save or load (but not both)\r
908 int do_it = 1;\r
909 if ( emu_check_save_file(state_slot) &&\r
910 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
911 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
912 unsigned long keys;\r
913 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
914 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
915 usleep(50*1024);\r
916 if (keys & GP2X_X) do_it = 0;\r
917 clearArea(0);\r
918 }\r
919 if (do_it) {\r
920 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
921 PicoStateProgressCB = emu_state_cb;\r
922 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
923 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
924 PicoStateProgressCB = NULL;\r
925 }\r
926\r
927 reset_timing = 1;\r
928 }\r
929 if(which & 0x0400) { // switch renderer\r
930 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
931 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
932 else currentConfig.EmuOpt &= ~0x80;\r
933\r
934 vidResetMode();\r
935\r
936 if (PicoOpt&0x10) {\r
937 strcpy(noticeMsg, " 8bit fast renderer");\r
938 } else if (currentConfig.EmuOpt&0x80) {\r
939 strcpy(noticeMsg, "16bit accurate renderer");\r
940 } else {\r
941 strcpy(noticeMsg, " 8bit accurate renderer");\r
942 }\r
943\r
944 gettimeofday(&noticeMsgTime, 0);\r
945 }\r
946 if(which & 0x0300) {\r
947 if(which&0x0200) {\r
948 state_slot -= 1;\r
949 if(state_slot < 0) state_slot = 9;\r
950 } else {\r
951 state_slot += 1;\r
952 if(state_slot > 9) state_slot = 0;\r
953 }\r
954 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
955 gettimeofday(&noticeMsgTime, 0);\r
956 }\r
957 if(which & 0x0080) {\r
958 engineState = PGS_Menu;\r
959 }\r
960}\r
961\r
962\r
963static void updateMovie(void)\r
964{\r
965 int offs = Pico.m.frame_count*3 + 0x40;\r
966 if (offs+3 > movie_size) {\r
967 free(movie_data);\r
968 movie_data = 0;\r
969 strcpy(noticeMsg, "END OF MOVIE.");\r
970 printf("END OF MOVIE.\n");\r
971 gettimeofday(&noticeMsgTime, 0);\r
972 } else {\r
973 // MXYZ SACB RLDU\r
974 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
975 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
976 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
977 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
978 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
979 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
980 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
981 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
982 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
983 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
984 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
985 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
986 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
987 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
988 }\r
989}\r
990\r
991\r
992static void updateKeys(void)\r
993{\r
994 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
995 static unsigned long prevEvents = 0;\r
996 int joy, i;\r
997\r
998 keys = gp2x_joystick_read(0);\r
999 if (keys & GP2X_SELECT) {\r
1000 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
1001 // wait until select is released, so menu would not resume game\r
1002 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
1003 }\r
1004\r
1005 keys &= CONFIGURABLE_KEYS;\r
1006\r
1007 for (i = 0; i < 32; i++)\r
1008 {\r
1009 if (keys & (1 << i)) {\r
1010 int pl, acts = currentConfig.KeyBinds[i];\r
1011 if (!acts) continue;\r
1012 pl = (acts >> 16) & 1;\r
1013 if (combo_keys & (1 << i)) {\r
1014 int u = i+1, acts_c = acts & combo_acts;\r
1015 // let's try to find the other one\r
1016 if (acts_c)\r
1017 for (; u < 32; u++)\r
1018 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
1019 allActions[pl] |= acts_c;\r
1020 keys &= ~((1 << i) | (1 << u));\r
1021 break;\r
1022 }\r
1023 // add non-combo actions if combo ones were not found\r
1024 if (!acts_c || u == 32)\r
1025 allActions[pl] |= acts & ~combo_acts;\r
1026 } else {\r
1027 allActions[pl] |= acts;\r
1028 }\r
1029 }\r
1030 }\r
1031\r
1032 // add joy inputs\r
1033 if (num_of_joys > 0)\r
1034 {\r
1035 gp2x_usbjoy_update();\r
1036 for (joy = 0; joy < num_of_joys; joy++) {\r
1037 int keys = gp2x_usbjoy_check2(joy);\r
1038 for (i = 0; i < 32; i++) {\r
1039 if (keys & (1 << i)) {\r
1040 int acts = currentConfig.JoyBinds[joy][i];\r
1041 int pl = (acts >> 16) & 1;\r
1042 allActions[pl] |= acts;\r
1043 }\r
1044 }\r
1045 }\r
1046 }\r
1047\r
1048 PicoPad[0] = (unsigned short) allActions[0];\r
1049 PicoPad[1] = (unsigned short) allActions[1];\r
1050\r
1051 events = (allActions[0] | allActions[1]) >> 16;\r
1052\r
1053 // volume is treated in special way and triggered every frame\r
1054 if(events & 0x6000) {\r
1055 int vol = currentConfig.volume;\r
1056 if (events & 0x2000) {\r
1057 if (vol < 99) vol++;\r
1058 } else {\r
1059 if (vol > 0) vol--;\r
1060 }\r
1061 gp2x_sound_volume(vol, vol);\r
1062 sprintf(noticeMsg, "VOL: %02i", vol);\r
1063 gettimeofday(&noticeMsgTime, 0);\r
1064 currentConfig.volume = vol;\r
1065 }\r
1066\r
1067 events &= ~prevEvents;\r
1068 if (events) RunEvents(events);\r
1069 if (movie_data) updateMovie();\r
1070\r
1071 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
1072}\r
1073\r
1074\r
1075static void updateSound(int len)\r
1076{\r
1077 if (PicoOpt&8) len<<=1;\r
1078\r
1079 /* avoid writing audio when lagging behind to prevent audio lag */\r
1080 if (PicoSkipFrame != 2)\r
1081 gp2x_sound_write(PsndOut, len<<1);\r
1082}\r
1083\r
1084\r
1085static void SkipFrame(int do_audio)\r
1086{\r
1087 PicoSkipFrame=do_audio ? 1 : 2;\r
1088 PicoFrame();\r
1089 PicoSkipFrame=0;\r
1090}\r
1091\r
1092\r
1093void emu_forced_frame(void)\r
1094{\r
1095 int po_old = PicoOpt;\r
1096 int eo_old = currentConfig.EmuOpt;\r
1097\r
1098 PicoOpt &= ~0x0010;\r
1099 PicoOpt |= 0x4080; // soft_scale | acc_sprites\r
1100 currentConfig.EmuOpt |= 0x80;\r
1101\r
1102 //vidResetMode();\r
1103 PicoDrawSetColorFormat(1);\r
1104 PicoScan = EmuScan16;\r
1105 PicoScan(0, 0);\r
1106 Pico.m.dirtyPal = 1;\r
1107 PicoFrameDrawOnly();\r
1108\r
1109/*\r
1110 if (!(Pico.video.reg[12]&1)) {\r
1111 vidCpyM2 = vidCpyM2_32col;\r
1112 clearArea(1);\r
1113 } else vidCpyM2 = vidCpyM2_40col;\r
1114\r
1115 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
1116 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
1117 gp2x_video_setpalette(localPal, 0x40);\r
1118*/\r
1119 PicoOpt = po_old;\r
1120 currentConfig.EmuOpt = eo_old;\r
1121}\r
1122\r
1123static void simpleWait(int thissec, int lim_time)\r
1124{\r
1125 struct timeval tval;\r
1126\r
1127 spend_cycles(1024);\r
1128 gettimeofday(&tval, 0);\r
1129 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1130\r
1131 while(tval.tv_usec < lim_time)\r
1132 {\r
1133 spend_cycles(1024);\r
1134 gettimeofday(&tval, 0);\r
1135 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1136 }\r
1137}\r
1138\r
1139\r
1140void emu_Loop(void)\r
1141{\r
1142 static int gp2x_old_clock = 200;\r
1143 static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
1144 char fpsbuff[24]; // fps count c string\r
1145 struct timeval tval; // timing\r
1146 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
1147 int target_fps, target_frametime, lim_time, vsync_offset, i;\r
1148 char *notice = 0;\r
1149\r
1150 printf("entered emu_Loop()\n");\r
1151\r
1152 if (gp2x_old_clock != currentConfig.CPUclock) {\r
1153 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
1154 set_FCLK(currentConfig.CPUclock);\r
1155 gp2x_old_clock = currentConfig.CPUclock;\r
1156 printf(" done\n");\r
1157 }\r
1158\r
1159 if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
1160 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
1161 gp2x_old_gamma = currentConfig.gamma;\r
1162 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
1163 }\r
1164\r
1165 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
1166 if (currentConfig.EmuOpt&0x2000)\r
1167 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
1168 else unset_LCD_custom_rate();\r
1169 }\r
1170\r
1171 EmuOpt_old = currentConfig.EmuOpt;\r
1172 fpsbuff[0] = 0;\r
1173\r
1174 // make sure we are in correct mode\r
1175 vidResetMode();\r
1176 Pico.m.dirtyPal = 1;\r
1177 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
1178 find_combos();\r
1179\r
1180 // pal/ntsc might have changed, reset related stuff\r
1181 target_fps = Pico.m.pal ? 50 : 60;\r
1182 target_frametime = 1000000/target_fps;\r
1183 reset_timing = 1;\r
1184\r
1185 // prepare sound stuff\r
1186 if(currentConfig.EmuOpt & 4) {\r
1187 int snd_excess_add;\r
1188 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
1189 /* if 940 is turned off, we need it to be put back to sleep */\r
1190 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
1191 Reset940(1, 2);\r
1192 Pause940(1);\r
1193 }\r
1194 sound_rerate(1);\r
1195 }\r
1196 //excess_samples = PsndRate - PsndLen*target_fps;\r
1197 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1198 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n", PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
1199 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
1200 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
1201 PicoWriteSound = updateSound;\r
1202 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1203 PsndOut = sndBuffer;\r
1204 PsndRate_old = PsndRate;\r
1205 PsndLen_real = PsndLen;\r
1206 PicoOpt_old = PicoOpt;\r
1207 pal_old = Pico.m.pal;\r
1208 } else {\r
1209 PsndOut = 0;\r
1210 }\r
1211\r
1212 // prepare CD buffer\r
1213 if (PicoMCD & 1) PicoCDBufferInit();\r
1214\r
1215 // calc vsync offset to sync timing code with vsync\r
1216 if (currentConfig.EmuOpt&0x2000) {\r
1217 gettimeofday(&tval, 0);\r
1218 gp2x_video_wait_vsync();\r
1219 gettimeofday(&tval, 0);\r
1220 vsync_offset = tval.tv_usec;\r
1221 while (vsync_offset >= target_frametime)\r
1222 vsync_offset -= target_frametime;\r
1223 if (!vsync_offset) vsync_offset++;\r
1224 printf("vsync_offset: %i\n", vsync_offset);\r
1225 } else\r
1226 vsync_offset = 0;\r
1227\r
1228 // loop?\r
1229 while (engineState == PGS_Running)\r
1230 {\r
1231 int modes;\r
1232\r
1233 gettimeofday(&tval, 0);\r
1234 if(reset_timing) {\r
1235 reset_timing = 0;\r
1236 thissec = tval.tv_sec;\r
1237 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
1238 }\r
1239\r
1240 // show notice message?\r
1241 if(noticeMsgTime.tv_sec) {\r
1242 static int noticeMsgSum;\r
1243 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
1244 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
1245 clearArea(0);\r
1246 notice = 0;\r
1247 } else {\r
1248 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
1249 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
1250 notice = noticeMsg;\r
1251 }\r
1252 }\r
1253\r
1254 // check for mode changes\r
1255 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
1256 if (modes != oldmodes) {\r
1257 int scalex = 320;\r
1258 osd_fps_x = OSD_FPS_X;\r
1259 if (modes & 4) {\r
1260 vidCpyM2 = vidCpyM2_40col;\r
1261 } else {\r
1262 if (PicoOpt & 0x100) {\r
1263 vidCpyM2 = vidCpyM2_32col_nobord;\r
1264 scalex = 256;\r
1265 osd_fps_x = OSD_FPS_X - 64;\r
1266 } else {\r
1267 vidCpyM2 = vidCpyM2_32col;\r
1268 }\r
1269 }\r
1270 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
1271 gp2x_video_RGB_setscaling(8, scalex, 224);\r
1272 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
1273 oldmodes = modes;\r
1274 clearArea(1);\r
1275 }\r
1276\r
1277 // second changed?\r
1278 if(thissec != tval.tv_sec) {\r
1279#ifdef BENCHMARK\r
1280 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1281 if(++bench == 10) {\r
1282 bench = 0;\r
1283 bench_fps_s = bench_fps;\r
1284 bf[bfp++ & 3] = bench_fps;\r
1285 bench_fps = 0;\r
1286 }\r
1287 bench_fps += frames_shown;\r
1288 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1289#else\r
1290 if(currentConfig.EmuOpt & 2)\r
1291 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1292#endif\r
1293 thissec = tval.tv_sec;\r
1294\r
1295 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
1296 frames_done = frames_shown = 0;\r
1297 } else {\r
1298 // it is quite common for this implementation to leave 1 fame unfinished\r
1299 // when second changes, but we don't want buffer to starve.\r
1300 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
1301 updateKeys();\r
1302 SkipFrame(1); frames_done++;\r
1303 }\r
1304\r
1305 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
1306 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
1307 if (frames_shown > frames_done) frames_shown = frames_done;\r
1308 }\r
1309 }\r
1310\r
1311 lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
1312 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
1313 for(i = 0; i < currentConfig.Frameskip; i++) {\r
1314 updateKeys();\r
1315 SkipFrame(1); frames_done++;\r
1316 if (PsndOut) { // do framelimitting if sound is enabled\r
1317 gettimeofday(&tval, 0);\r
1318 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1319 if(tval.tv_usec < lim_time) { // we are too fast\r
1320 simpleWait(thissec, lim_time);\r
1321 }\r
1322 }\r
1323 lim_time += target_frametime;\r
1324 }\r
1325 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
1326 // no time left for this frame - skip\r
1327 if (tval.tv_usec - lim_time >= 0x300000) {\r
1328 /* something caused a slowdown for us (disk access? cache flush?)\r
1329 * try to recover by resetting timing... */\r
1330 reset_timing = 1;\r
1331 continue;\r
1332 }\r
1333 updateKeys();\r
1334 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
1335 continue;\r
1336 }\r
1337\r
1338 updateKeys();\r
1339 PicoFrame();\r
1340\r
1341#if 0\r
1342if (Pico.m.frame_count == 31563) {\r
1343 FILE *f;\r
1344 f = fopen("ram_p.bin", "wb");\r
1345 if (!f) { printf("!f\n"); exit(1); }\r
1346 fwrite(Pico.ram, 1, 0x10000, f);\r
1347 fclose(f);\r
1348 exit(0);\r
1349}\r
1350#endif\r
1351#if 0\r
1352 // debug\r
1353 {\r
1354 #define BYTE unsigned char\r
1355 #define WORD unsigned short\r
1356 struct\r
1357 {\r
1358 BYTE IDLength; /* 00h Size of Image ID field */\r
1359 BYTE ColorMapType; /* 01h Color map type */\r
1360 BYTE ImageType; /* 02h Image type code */\r
1361 WORD CMapStart; /* 03h Color map origin */\r
1362 WORD CMapLength; /* 05h Color map length */\r
1363 BYTE CMapDepth; /* 07h Depth of color map entries */\r
1364 WORD XOffset; /* 08h X origin of image */\r
1365 WORD YOffset; /* 0Ah Y origin of image */\r
1366 WORD Width; /* 0Ch Width of image */\r
1367 WORD Height; /* 0Eh Height of image */\r
1368 BYTE PixelDepth; /* 10h Image pixel size */\r
1369 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
1370 } __attribute__((packed)) TGAHEAD;\r
1371 static unsigned short oldscr[320*240];\r
1372 FILE *f; char name[128]; int i;\r
1373\r
1374 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
1375 TGAHEAD.ImageType = 2;\r
1376 TGAHEAD.Width = 320;\r
1377 TGAHEAD.Height = 240;\r
1378 TGAHEAD.PixelDepth = 16;\r
1379 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
1380\r
1381 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
1382\r
1383 for (i = 0; i < 320*240; i++)\r
1384 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
1385 if (i < 320*240)\r
1386 {\r
1387 for (i = 0; i < 320*240; i++)\r
1388 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
1389 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
1390 f = fopen(name, "wb");\r
1391 if (!f) { printf("!f\n"); exit(1); }\r
1392 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
1393 fwrite(oldscr, 1, 320*240*2, f);\r
1394 fclose(f);\r
1395 }\r
1396 }\r
1397#endif\r
1398\r
1399 // check time\r
1400 gettimeofday(&tval, 0);\r
1401 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1402\r
1403 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 0x300000) // slowdown detection\r
1404 reset_timing = 1;\r
1405 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
1406 {\r
1407 // sleep or vsync if we are still too fast\r
1408 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
1409 if(tval.tv_usec < lim_time)\r
1410 {\r
1411 // we are too fast\r
1412 if (vsync_offset) {\r
1413 if (lim_time - tval.tv_usec > target_frametime/2)\r
1414 simpleWait(thissec, lim_time - target_frametime/4);\r
1415 gp2x_video_wait_vsync();\r
1416 } else {\r
1417 simpleWait(thissec, lim_time);\r
1418 }\r
1419 }\r
1420 }\r
1421\r
1422 blit(fpsbuff, notice);\r
1423\r
1424 frames_done++; frames_shown++;\r
1425 }\r
1426\r
1427\r
1428 if (PicoMCD & 1) PicoCDBufferFree();\r
1429\r
1430 // save SRAM\r
1431 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
1432 emu_state_cb("Writing SRAM/BRAM..");\r
1433 emu_SaveLoadGame(0, 1);\r
1434 SRam.changed = 0;\r
1435 }\r
1436\r
1437 // if in 8bit mode, generate 16bit image for menu background\r
1438 if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
1439 emu_forced_frame();\r
1440}\r
1441\r
1442\r
1443void emu_ResetGame(void)\r
1444{\r
1445 PicoReset(0);\r
1446 reset_timing = 1;\r
1447}\r
1448\r
1449\r
1450size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1451{\r
1452 return gzread(file, p, _n);\r
1453}\r
1454\r
1455\r
1456size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1457{\r
1458 return gzwrite(file, p, _n);\r
1459}\r
1460\r
1461static int try_ropen_file(const char *fname)\r
1462{\r
1463 FILE *f;\r
1464\r
1465 f = fopen(fname, "rb");\r
1466 if (f) {\r
1467 fclose(f);\r
1468 return 1;\r
1469 }\r
1470 return 0;\r
1471}\r
1472\r
1473char *emu_GetSaveFName(int load, int is_sram, int slot)\r
1474{\r
1475 static char saveFname[512];\r
1476 char ext[16];\r
1477\r
1478 if (is_sram)\r
1479 {\r
1480 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
1481 if (load) {\r
1482 if (try_ropen_file(saveFname)) return saveFname;\r
1483 // try in current dir..\r
1484 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
1485 if (try_ropen_file(saveFname)) return saveFname;\r
1486 return NULL; // give up\r
1487 }\r
1488 }\r
1489 else\r
1490 {\r
1491 ext[0] = 0;\r
1492 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1493 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
1494\r
1495 romfname_ext(saveFname, "mds/", ext);\r
1496 if (load) {\r
1497 if (try_ropen_file(saveFname)) return saveFname;\r
1498 romfname_ext(saveFname, NULL, ext);\r
1499 if (try_ropen_file(saveFname)) return saveFname;\r
1500 if (currentConfig.EmuOpt & 8) {\r
1501 ext[0] = 0;\r
1502 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1503 strcat(ext, ".mds");\r
1504\r
1505 romfname_ext(saveFname, "mds/", ext);\r
1506 if (try_ropen_file(saveFname)) return saveFname;\r
1507 romfname_ext(saveFname, NULL, ext);\r
1508 if (try_ropen_file(saveFname)) return saveFname;\r
1509 }\r
1510 return NULL;\r
1511 }\r
1512 }\r
1513\r
1514 return saveFname;\r
1515}\r
1516\r
1517int emu_check_save_file(int slot)\r
1518{\r
1519 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
1520}\r
1521\r
1522void emu_set_save_cbs(int gz)\r
1523{\r
1524 if (gz) {\r
1525 areaRead = gzRead2;\r
1526 areaWrite = gzWrite2;\r
1527 areaEof = (areaeof *) gzeof;\r
1528 areaSeek = (areaseek *) gzseek;\r
1529 areaClose = (areaclose *) gzclose;\r
1530 } else {\r
1531 areaRead = (arearw *) fread;\r
1532 areaWrite = (arearw *) fwrite;\r
1533 areaEof = (areaeof *) feof;\r
1534 areaSeek = (areaseek *) fseek;\r
1535 areaClose = (areaclose *) fclose;\r
1536 }\r
1537}\r
1538\r
1539int emu_SaveLoadGame(int load, int sram)\r
1540{\r
1541 int ret = 0;\r
1542 char *saveFname;\r
1543\r
1544 // make save filename\r
1545 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
1546 if (saveFname == NULL) {\r
1547 if (!sram) {\r
1548 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
1549 gettimeofday(&noticeMsgTime, 0);\r
1550 }\r
1551 return -1;\r
1552 }\r
1553\r
1554 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1555\r
1556 if(sram) {\r
1557 FILE *sramFile;\r
1558 int sram_size;\r
1559 unsigned char *sram_data;\r
1560 int truncate = 1;\r
1561 if (PicoMCD&1) {\r
1562 if (PicoOpt&0x8000) { // MCD RAM cart?\r
1563 sram_size = 0x12000;\r
1564 sram_data = SRam.data;\r
1565 if (sram_data)\r
1566 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
1567 } else {\r
1568 sram_size = 0x2000;\r
1569 sram_data = Pico_mcd->bram;\r
1570 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
1571 }\r
1572 } else {\r
1573 sram_size = SRam.end-SRam.start+1;\r
1574 if(SRam.reg_back & 4) sram_size=0x2000;\r
1575 sram_data = SRam.data;\r
1576 }\r
1577 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
1578\r
1579 if (load) {\r
1580 sramFile = fopen(saveFname, "rb");\r
1581 if(!sramFile) return -1;\r
1582 fread(sram_data, 1, sram_size, sramFile);\r
1583 fclose(sramFile);\r
1584 if ((PicoMCD&1) && (PicoOpt&0x8000))\r
1585 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
1586 } else {\r
1587 // sram save needs some special processing\r
1588 // see if we have anything to save\r
1589 for (; sram_size > 0; sram_size--)\r
1590 if (sram_data[sram_size-1]) break;\r
1591\r
1592 if (sram_size) {\r
1593 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
1594 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
1595 if (!sramFile) return -1;\r
1596 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
1597 ret = (ret != sram_size) ? -1 : 0;\r
1598 fclose(sramFile);\r
1599#ifndef NO_SYNC\r
1600 sync();\r
1601#endif\r
1602 }\r
1603 }\r
1604 return ret;\r
1605 }\r
1606 else\r
1607 {\r
1608 void *PmovFile = NULL;\r
1609 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
1610 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
1611 emu_set_save_cbs(1);\r
1612 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
1613 }\r
1614 }\r
1615 else\r
1616 {\r
1617 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
1618 emu_set_save_cbs(0);\r
1619 }\r
1620 }\r
1621 if(PmovFile) {\r
1622 ret = PmovState(load ? 6 : 5, PmovFile);\r
1623 areaClose(PmovFile);\r
1624 PmovFile = 0;\r
1625 if (load) Pico.m.dirtyPal=1;\r
1626#ifndef NO_SYNC\r
1627 else sync();\r
1628#endif\r
1629 }\r
1630 else ret = -1;\r
1631 if (!ret)\r
1632 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
1633 else\r
1634 {\r
1635 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
1636 ret = -1;\r
1637 }\r
1638\r
1639 gettimeofday(&noticeMsgTime, 0);\r
1640 return ret;\r
1641 }\r
1642}\r
PicoDrive's frontend in a lib