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[libpicofe.git] / gp2x / emu.c
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6ab2f79c 1// (c) Copyright 2006-2007 notaz, All rights reserved.\r
720ee7f6 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
4ffd2858 9#include <sys/stat.h>\r
10#include <sys/types.h>\r
720ee7f6 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 "asmutils.h"\r
22#include "cpuctrl.h"\r
23\r
70d2ecc5 24#include <Pico/PicoInt.h>\r
25#include <Pico/Patch.h>\r
26#include <zlib/zlib.h>\r
720ee7f6 27\r
28\r
29#ifdef BENCHMARK\r
30#define OSD_FPS_X 220\r
31#else\r
32#define OSD_FPS_X 260\r
33#endif\r
34\r
35// PicoPad[] format: SACB RLDU\r
36char *actionNames[] = {\r
37 "UP", "DOWN", "LEFT", "RIGHT", "B", "C", "A", "START",\r
38 0, 0, 0, 0, 0, 0, 0, 0, // Z, Y, X, MODE (enabled only when needed), ?, ?, ?, ?\r
39 0, 0, 0, 0, 0, 0, 0, "ENTER MENU", // player2_flag, ?, ?, ?, ?, ?, ?, menu\r
40 "NEXT SAVE SLOT", "PREV SAVE SLOT", "SWITCH RENDERER", "SAVE STATE",\r
41 "LOAD STATE", "VOLUME UP", "VOLUME DOWN", "DONE"\r
42};\r
43\r
44int engineState;\r
45int select_exits = 0;\r
46char *PicoConfigFile = "picoconfig.bin";\r
47currentConfig_t currentConfig;\r
48\r
49char romFileName[PATH_MAX];\r
50unsigned char *rom_data = NULL;\r
51\r
52extern int crashed_940;\r
53\r
3ef975c9 54static short sndBuffer[2*44100/50];\r
720ee7f6 55static char noticeMsg[64]; // notice msg to draw\r
56static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
8f1b51ef 57static int osd_fps_x;\r
720ee7f6 58static int combo_keys = 0, combo_acts = 0; // keys and actions which need button combos\r
59static int gp2x_old_gamma = 100;\r
60static unsigned char *movie_data = NULL;\r
61static int movie_size = 0;\r
720ee7f6 62unsigned char *framebuff = 0; // temporary buffer for alt renderer\r
63int state_slot = 0;\r
8f1b51ef 64int reset_timing = 0;\r
720ee7f6 65\r
720ee7f6 66\r
720ee7f6 67// utilities\r
68static void strlwr(char* string)\r
69{\r
70 while ( (*string++ = (char)tolower(*string)) );\r
71}\r
72\r
5111820c 73static int try_rfn_cut(void)\r
720ee7f6 74{\r
75 FILE *tmp;\r
76 char *p;\r
77\r
5111820c 78 p = romFileName + strlen(romFileName) - 1;\r
79 for (; p > romFileName; p--)\r
80 if (*p == '.') break;\r
81 *p = 0;\r
720ee7f6 82\r
83 if((tmp = fopen(romFileName, "rb"))) {\r
84 fclose(tmp);\r
85 return 1;\r
86 }\r
87 return 0;\r
88}\r
89\r
daf91588 90static void get_ext(char *file, char *ext)\r
25fced50 91{\r
92 char *p;\r
93\r
daf91588 94 p = file + strlen(file) - 4;\r
95 if (p < file) p = file;\r
25fced50 96 strncpy(ext, p, 4);\r
97 ext[4] = 0;\r
98 strlwr(ext);\r
99}\r
100\r
daf91588 101char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
102char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210" };\r
103char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
104\r
105extern char **g_argv;\r
106\r
107int find_bios(int region, char **bios_file)\r
108{\r
109 static char bios_path[1024];\r
110 int i, j, count;\r
111 char **files;\r
112 FILE *f = NULL;\r
113\r
114 if (region == 4) { // US\r
115 files = biosfiles_us;\r
116 count = sizeof(biosfiles_us) / sizeof(char *);\r
117 } else if (region == 8) { // EU\r
118 files = biosfiles_eu;\r
119 count = sizeof(biosfiles_eu) / sizeof(char *);\r
120 } else if (region == 1 || region == 2) {\r
121 files = biosfiles_jp;\r
122 count = sizeof(biosfiles_jp) / sizeof(char *);\r
123 } else {\r
124 return 0;\r
125 }\r
126\r
127 for (i = 0; i < count; i++)\r
128 {\r
129 strncpy(bios_path, g_argv[0], 1023);\r
130 bios_path[1024-32] = 0;\r
131 for (j = strlen(bios_path); j > 0; j--)\r
132 if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }\r
133 strcat(bios_path, files[i]);\r
134 strcat(bios_path, ".bin");\r
135 f = fopen(bios_path, "rb");\r
136 if (f) break;\r
137\r
138 bios_path[strlen(bios_path) - 4] = 0;\r
139 strcat(bios_path, ".zip");\r
140 f = fopen(bios_path, "rb");\r
141 if (f) break;\r
142 }\r
143\r
144 if (f) {\r
145 printf("using bios: %s\n", bios_path);\r
146 fclose(f);\r
147 if (bios_file) *bios_file = bios_path;\r
148 return 1;\r
149 } else {\r
150 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
151 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
152 printf("%s\n", menuErrorMsg);\r
153 return 0;\r
154 }\r
155}\r
156\r
157/* checks if romFileName points to valid MegaCD image\r
158 * if so, checks for suitable BIOS */\r
5e2e14f2 159int emu_cd_check(char **bios_file)\r
daf91588 160{\r
161 unsigned char buf[32];\r
af6e9c49 162 pm_file *cd_f;\r
daf91588 163 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
164\r
af6e9c49 165 cd_f = pm_open(romFileName);\r
daf91588 166 if (!cd_f) return 0; // let the upper level handle this\r
167\r
af6e9c49 168 if (pm_read(buf, 32, cd_f) != 32) {\r
169 pm_close(cd_f);\r
daf91588 170 return 0;\r
171 }\r
172\r
173 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)\r
174 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)\r
175 if (type == 0) {\r
af6e9c49 176 pm_close(cd_f);\r
daf91588 177 return 0;\r
178 }\r
179\r
5e2e14f2 180 /* it seems we have a CD image here. Try to detect region now.. */\r
af6e9c49 181 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
182 pm_read(buf, 1, cd_f);\r
183 pm_close(cd_f);\r
daf91588 184\r
598e7c06 185 if (buf[0] == 0x64) region = 8; // EU\r
daf91588 186 if (buf[0] == 0xa1) region = 1; // JAP\r
187\r
188 printf("detected %s Sega/Mega CD image with %s region\n",\r
189 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
190\r
191 if (PicoRegionOverride) {\r
192 region = PicoRegionOverride;\r
193 printf("overrided region to %s\n", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
194 }\r
195\r
5e2e14f2 196 if (bios_file == NULL) return type;\r
197\r
198 if (find_bios(region, bios_file))\r
daf91588 199 return type; // CD and BIOS detected\r
200\r
201 return -1; // CD detected but load failed\r
202}\r
203\r
720ee7f6 204int emu_ReloadRom(void)\r
205{\r
206 unsigned int rom_size = 0;\r
daf91588 207 char *used_rom_name = romFileName;\r
25fced50 208 char ext[5];\r
af6e9c49 209 pm_file *rom;\r
daf91588 210 int ret, cd_state;\r
720ee7f6 211\r
212 printf("emu_ReloadRom(%s)\n", romFileName);\r
213\r
daf91588 214 get_ext(romFileName, ext);\r
720ee7f6 215\r
daf91588 216 // detect wrong extensions\r
720ee7f6 217 if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
218 sprintf(menuErrorMsg, "Not a ROM selected.");\r
219 return 0;\r
220 }\r
221\r
70d2ecc5 222 PicoPatchUnload();\r
223\r
720ee7f6 224 // check for movie file\r
225 if(movie_data) {\r
226 free(movie_data);\r
227 movie_data = 0;\r
228 }\r
229 if(!strcmp(ext, ".gmv")) {\r
230 // check for both gmv and rom\r
231 int dummy;\r
232 FILE *movie_file = fopen(romFileName, "rb");\r
233 if(!movie_file) {\r
234 sprintf(menuErrorMsg, "Failed to open movie.");\r
235 return 0;\r
236 }\r
237 fseek(movie_file, 0, SEEK_END);\r
238 movie_size = ftell(movie_file);\r
239 fseek(movie_file, 0, SEEK_SET);\r
240 if(movie_size < 64+3) {\r
241 sprintf(menuErrorMsg, "Invalid GMV file.");\r
242 fclose(movie_file);\r
243 return 0;\r
244 }\r
245 movie_data = malloc(movie_size);\r
246 if(movie_data == NULL) {\r
247 sprintf(menuErrorMsg, "low memory.");\r
248 fclose(movie_file);\r
249 return 0;\r
250 }\r
251 fread(movie_data, 1, movie_size, movie_file);\r
252 fclose(movie_file);\r
253 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
254 sprintf(menuErrorMsg, "Invalid GMV file.");\r
255 return 0;\r
256 }\r
5111820c 257 dummy = try_rfn_cut() || try_rfn_cut();\r
720ee7f6 258 if (!dummy) {\r
259 sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
260 return 0;\r
261 }\r
daf91588 262 get_ext(romFileName, ext);\r
720ee7f6 263 }\r
70d2ecc5 264 else if (!strcmp(ext, ".pat")) {\r
265 int dummy;\r
266 PicoPatchLoad(romFileName);\r
267 dummy = try_rfn_cut() || try_rfn_cut();\r
268 if (!dummy) {\r
269 sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
270 return 0;\r
271 }\r
272 get_ext(romFileName, ext);\r
273 }\r
720ee7f6 274\r
46ede6a6 275 if ((PicoMCD & 1) && Pico_mcd != NULL)\r
276 Stop_CD();\r
277\r
daf91588 278 // check for MegaCD image\r
5e2e14f2 279 cd_state = emu_cd_check(&used_rom_name);\r
daf91588 280 if (cd_state > 0) {\r
281 PicoMCD |= 1;\r
282 get_ext(used_rom_name, ext);\r
283 } else if (cd_state == -1) {\r
284 // bios_help() ?\r
285 return 0;\r
286 } else {\r
49fe50f0 287 if (PicoMCD & 1) PicoExitMCD();\r
daf91588 288 PicoMCD &= ~1;\r
289 }\r
290\r
af6e9c49 291 rom = pm_open(used_rom_name);\r
720ee7f6 292 if(!rom) {\r
293 sprintf(menuErrorMsg, "Failed to open rom.");\r
294 return 0;\r
295 }\r
296\r
297 if(rom_data) {\r
298 free(rom_data);\r
299 rom_data = 0;\r
300 rom_size = 0;\r
301 }\r
302\r
af6e9c49 303 if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
304 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
305 printf("%s\n", menuErrorMsg);\r
306 pm_close(rom);\r
307 return 0;\r
720ee7f6 308 }\r
af6e9c49 309 pm_close(rom);\r
720ee7f6 310\r
311 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
312 if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
6ab2f79c 313 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
720ee7f6 314 if (rom_data) free(rom_data);\r
315 rom_data = 0;\r
316 sprintf(menuErrorMsg, "Not a ROM selected.");\r
317 return 0;\r
318 }\r
319\r
daf91588 320 // load config for this ROM (do this before insert to get correct region)\r
321 ret = emu_ReadConfig(1);\r
322 if (!ret)\r
323 emu_ReadConfig(0);\r
324\r
720ee7f6 325 printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
326 if(PicoCartInsert(rom_data, rom_size)) {\r
327 sprintf(menuErrorMsg, "Failed to load ROM.");\r
328 return 0;\r
329 }\r
330\r
daf91588 331 Pico.m.frame_count = 0;\r
332\r
333 // insert CD if it was detected\r
334 if (cd_state > 0) {\r
335 ret = Insert_CD(romFileName, cd_state == 2);\r
336 if (ret != 0) {\r
337 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
338 printf("%s\n", menuErrorMsg);\r
339 return 0;\r
340 }\r
341 }\r
720ee7f6 342\r
343 // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
344 strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
345 currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
346\r
70d2ecc5 347 if (PicoPatches) {\r
348 PicoPatchPrepare();\r
349 PicoPatchApply();\r
350 }\r
351\r
720ee7f6 352 // additional movie stuff\r
353 if(movie_data) {\r
354 if(movie_data[0x14] == '6')\r
355 PicoOpt |= 0x20; // 6 button pad\r
356 else PicoOpt &= ~0x20;\r
1a20dbc8 357 PicoOpt |= 0x40; // accurate timing\r
720ee7f6 358 if(movie_data[0xF] >= 'A') {\r
1a20dbc8 359 if(movie_data[0x16] & 0x80) {\r
360 PicoRegionOverride = 8;\r
361 } else {\r
362 PicoRegionOverride = 4;\r
363 }\r
364 PicoReset(0);\r
720ee7f6 365 // TODO: bits 6 & 5\r
366 }\r
1a20dbc8 367 movie_data[0x18+30] = 0;\r
368 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
720ee7f6 369 }\r
370 else\r
371 {\r
372 if(Pico.m.pal) {\r
373 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
374 } else {\r
375 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
376 }\r
377 }\r
378 gettimeofday(&noticeMsgTime, 0);\r
49fe50f0 379\r
720ee7f6 380 // load SRAM for this ROM\r
381 if(currentConfig.EmuOpt & 1)\r
382 emu_SaveLoadGame(1, 1);\r
383\r
720ee7f6 384 return 1;\r
385}\r
386\r
387\r
dfa4c846 388static void emu_msg_cb(const char *msg);\r
5e2e14f2 389static void emu_msg_tray_open(void);\r
dfa4c846 390\r
720ee7f6 391void emu_Init(void)\r
392{\r
393 // make temp buffer for alt renderer\r
394 framebuff = malloc((8+320)*(8+240+8));\r
395 if (!framebuff)\r
396 {\r
397 printf("framebuff == 0\n");\r
398 }\r
399\r
4ffd2858 400 // make dirs for saves, cfgs, etc.\r
401 mkdir("mds", 0777);\r
402 mkdir("srm", 0777);\r
403 mkdir("brm", 0777);\r
404 mkdir("cfg", 0777);\r
405\r
720ee7f6 406 PicoInit();\r
dfa4c846 407 PicoMessage = emu_msg_cb;\r
5e2e14f2 408 PicoMCDopenTray = emu_msg_tray_open;\r
409 PicoMCDcloseTray = menu_loop_tray;\r
720ee7f6 410}\r
411\r
412\r
4ffd2858 413static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
720ee7f6 414{\r
415 char *p;\r
4ffd2858 416 int prefix_len = 0;\r
720ee7f6 417\r
418 // make save filename\r
419 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
4ffd2858 420 *dst = 0;\r
421 if (prefix) {\r
422 strcpy(dst, prefix);\r
423 prefix_len = strlen(prefix);\r
424 }\r
425 strncpy(dst + prefix_len, p, 511-prefix_len);\r
720ee7f6 426 dst[511-8] = 0;\r
4ffd2858 427 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
428 if (ext) strcat(dst, ext);\r
720ee7f6 429}\r
430\r
431\r
432static void find_combos(void)\r
433{\r
434 int act, u;\r
435\r
436 // find out which keys and actions are combos\r
437 combo_keys = combo_acts = 0;\r
438 for (act = 0; act < 32; act++)\r
439 {\r
440 int keyc = 0;\r
441 if (act == 16) continue; // player2 flag\r
442 for (u = 0; u < 32; u++)\r
443 {\r
444 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
445 }\r
446 if (keyc > 1)\r
447 {\r
448 // loop again and mark those keys and actions as combo\r
449 for (u = 0; u < 32; u++)\r
450 {\r
451 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
452 combo_keys |= 1 << u;\r
453 combo_acts |= 1 << act;\r
454 }\r
455 }\r
456 }\r
457 }\r
458 // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
459}\r
460\r
461\r
79cad122 462void scaling_update(void)\r
463{\r
464 PicoOpt &= ~0x4100;\r
465 switch (currentConfig.scaling) {\r
466 default: break; // off\r
467 case 1: // hw hor\r
468 case 2: PicoOpt |= 0x0100; break; // hw hor+vert\r
469 case 3: PicoOpt |= 0x4000; break; // sw hor\r
470 }\r
471}\r
472\r
473\r
720ee7f6 474int emu_ReadConfig(int game)\r
475{\r
476 FILE *f;\r
477 char cfg[512];\r
478 int bread = 0;\r
479\r
480 if (!game)\r
481 {\r
482 // set default config\r
483 memset(&currentConfig, 0, sizeof(currentConfig));\r
484 currentConfig.lastRomFile[0] = 0;\r
6ab2f79c 485 currentConfig.EmuOpt = 0x1f | 0x600; // | confirm_save, cd_leds\r
486 currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940, cd_pcm, cd_cdda\r
7bc9cd7f 487 currentConfig.PsndRate = 22050; // 44100;\r
720ee7f6 488 currentConfig.PicoRegion = 0; // auto\r
979ba09f 489 currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
720ee7f6 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
5f9922e6 507 currentConfig.PicoCDBuffers = 64;\r
79cad122 508 currentConfig.scaling = 0;\r
720ee7f6 509 strncpy(cfg, PicoConfigFile, 511);\r
510 cfg[511] = 0;\r
511 } else {\r
4ffd2858 512 romfname_ext(cfg, "cfg/", ".pbcfg");\r
513 f = fopen(cfg, "rb");\r
514 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
515 else fclose(f);\r
720ee7f6 516 }\r
517\r
518 printf("emu_ReadConfig: %s ", cfg);\r
519 f = fopen(cfg, "rb");\r
520 if (f) {\r
521 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
522 fclose(f);\r
523 }\r
79cad122 524 printf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
720ee7f6 525\r
526 PicoOpt = currentConfig.PicoOpt;\r
527 PsndRate = currentConfig.PsndRate;\r
528 PicoRegionOverride = currentConfig.PicoRegion;\r
979ba09f 529 PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
5f9922e6 530 PicoCDBuffers = currentConfig.PicoCDBuffers;\r
720ee7f6 531 if (PicoOpt & 0x20) {\r
532 actionNames[ 8] = "Z"; actionNames[ 9] = "Y";\r
533 actionNames[10] = "X"; actionNames[11] = "MODE";\r
534 }\r
79cad122 535 scaling_update();\r
720ee7f6 536 // some sanity checks\r
5e2e14f2 537 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
720ee7f6 538 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
5e2e14f2 539 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
720ee7f6 540 // if volume keys are unbound, bind them to volume control\r
541 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
542 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
543 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
544 }\r
545\r
79cad122 546 return (bread > 0); // == sizeof(currentConfig));\r
720ee7f6 547}\r
548\r
549\r
550int emu_WriteConfig(int game)\r
551{\r
552 FILE *f;\r
553 char cfg[512];\r
554 int bwrite = 0;\r
555\r
556 if (!game)\r
557 {\r
558 strncpy(cfg, PicoConfigFile, 511);\r
559 cfg[511] = 0;\r
560 } else {\r
2fb6c387 561 romfname_ext(cfg, "cfg/", ".pbcfg");\r
720ee7f6 562 }\r
563\r
564 printf("emu_WriteConfig: %s ", cfg);\r
565 f = fopen(cfg, "wb");\r
566 if (f) {\r
567 currentConfig.PicoOpt = PicoOpt;\r
568 currentConfig.PsndRate = PsndRate;\r
569 currentConfig.PicoRegion = PicoRegionOverride;\r
979ba09f 570 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
5f9922e6 571 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
720ee7f6 572 bwrite = fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
573 fflush(f);\r
574 fclose(f);\r
79cad122 575#ifndef NO_SYNC\r
720ee7f6 576 sync();\r
79cad122 577#endif\r
720ee7f6 578 }\r
579 printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
580\r
581 return (bwrite == sizeof(currentConfig));\r
582}\r
583\r
584\r
585void emu_Deinit(void)\r
586{\r
587 // save SRAM\r
588 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
589 emu_SaveLoadGame(0, 1);\r
590 SRam.changed = 0;\r
591 }\r
592\r
79cad122 593 if (!(currentConfig.EmuOpt & 0x20)) {\r
594 FILE *f = fopen(PicoConfigFile, "r+b");\r
595 if (!f) emu_WriteConfig(0);\r
596 else {\r
597 // if we already have config, reload it, except last ROM\r
598 fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);\r
599 fread(&currentConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);\r
600 fseek(f, 0, SEEK_SET);\r
601 fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
602 fflush(f);\r
603 fclose(f);\r
604#ifndef NO_SYNC\r
605 sync();\r
606#endif\r
607 }\r
608 }\r
609\r
720ee7f6 610 free(framebuff);\r
611\r
612 PicoExit();\r
720ee7f6 613\r
614 // restore gamma\r
615 if (gp2x_old_gamma != 100)\r
616 set_gamma(100);\r
617}\r
618\r
619\r
0805b5b4 620void osd_text(int x, int y, const char *text)\r
720ee7f6 621{\r
622 int len = strlen(text)*8;\r
623\r
624 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
daf91588 625 int *p, i, h;\r
720ee7f6 626 x &= ~3; // align x\r
627 len = (len+3) >> 2;\r
628 for (h = 0; h < 8; h++) {\r
629 p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
daf91588 630 for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
720ee7f6 631 }\r
daf91588 632 gp2x_text_out8_2(x, y, text, 0xf0);\r
720ee7f6 633 } else {\r
634 int *p, i, h;\r
635 x &= ~1; // align x\r
636 len = (len+1) >> 1;\r
637 for (h = 0; h < 8; h++) {\r
638 p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
639 for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
640 }\r
641 gp2x_text_out15(x, y, text);\r
642 }\r
643}\r
644\r
daf91588 645static void cd_leds(void)\r
646{\r
8dfb9fd5 647 // mmu problems?\r
648// static\r
649 int old_reg;\r
650// if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
daf91588 651 old_reg = Pico_mcd->s68k_regs[0];\r
652\r
653 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
654 // 8-bit modes\r
655 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
656 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
49fe50f0 657 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
658 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
659 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
660 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
661 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
662 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
daf91588 663 } else {\r
664 // 16-bit modes\r
49fe50f0 665 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
daf91588 666 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
667 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
49fe50f0 668 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
669 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
670 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
daf91588 671 }\r
672}\r
673\r
720ee7f6 674static int EmuScan16(unsigned int num, void *sdata)\r
675{\r
676 if (!(Pico.video.reg[1]&8)) num += 8;\r
677 DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
678\r
679 return 0;\r
680}\r
681\r
682static int EmuScan8(unsigned int num, void *sdata)\r
683{\r
684 if (!(Pico.video.reg[1]&8)) num += 8;\r
685 DrawLineDest = (unsigned char *) gp2x_screen + 320*(num+1);\r
686\r
687 return 0;\r
688}\r
689\r
e5d315a5 690int localPal[0x100];\r
720ee7f6 691static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
692\r
0805b5b4 693static void blit(const char *fps, const char *notice)\r
720ee7f6 694{\r
daf91588 695 int emu_opt = currentConfig.EmuOpt;\r
696\r
720ee7f6 697 if (PicoOpt&0x10) {\r
698 // 8bit fast renderer\r
699 if (Pico.m.dirtyPal) {\r
700 Pico.m.dirtyPal = 0;\r
701 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
702 // feed new palette to our device\r
703 gp2x_video_setpalette(localPal, 0x40);\r
704 }\r
705 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
daf91588 706 } else if (!(emu_opt&0x80)) {\r
720ee7f6 707 // 8bit accurate renderer\r
708 if (Pico.m.dirtyPal) {\r
709 Pico.m.dirtyPal = 0;\r
710 if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
711 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
712 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
713 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
714 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
daf91588 715 localPal[0xc0] = 0x0000c000;\r
716 localPal[0xd0] = 0x00c00000;\r
720ee7f6 717 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
718 localPal[0xf0] = 0x00ffffff;\r
719 gp2x_video_setpalette(localPal, 0x100);\r
720 } else if (rendstatus & 0x20) { // mid-frame palette changes\r
721 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
722 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
723 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
724 gp2x_video_setpalette(localPal, 0xc0);\r
725 } else {\r
726 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
727 gp2x_video_setpalette(localPal, 0x40);\r
728 }\r
729 }\r
730 }\r
731\r
79cad122 732 if (notice || (emu_opt & 2)) {\r
733 int h = 232;\r
734 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
735 if (notice) osd_text(4, h, notice);\r
736 if (emu_opt & 2)\r
737 osd_text(osd_fps_x, h, fps);\r
738 }\r
daf91588 739 if ((emu_opt & 0x400) && (PicoMCD & 1))\r
740 cd_leds();\r
720ee7f6 741\r
742 //gp2x_video_wait_vsync();\r
743 gp2x_video_flip();\r
744\r
745 if (!(PicoOpt&0x10)) {\r
746 if (!(Pico.video.reg[1]&8)) {\r
747 if (currentConfig.EmuOpt&0x80) {\r
748 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
749 } else {\r
750 DrawLineDest = (unsigned char *) gp2x_screen + 320*8;\r
751 }\r
752 } else {\r
753 DrawLineDest = gp2x_screen;\r
754 }\r
755 }\r
756}\r
757\r
758\r
759// clears whole screen or just the notice area (in all buffers)\r
760static void clearArea(int full)\r
761{\r
daf91588 762 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
763 // 8-bit renderers\r
764 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
765 else gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
766 } else {\r
720ee7f6 767 // 16bit accurate renderer\r
768 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
769 else gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
720ee7f6 770 }\r
771}\r
772\r
773\r
774static void vidResetMode(void)\r
775{\r
776 if (PicoOpt&0x10) {\r
720ee7f6 777 gp2x_video_changemode(8);\r
720ee7f6 778 } else if (currentConfig.EmuOpt&0x80) {\r
779 gp2x_video_changemode(15);\r
780 PicoDrawSetColorFormat(1);\r
781 PicoScan = EmuScan16;\r
782 PicoScan(0, 0);\r
783 } else {\r
daf91588 784 gp2x_video_changemode(8);\r
785 PicoDrawSetColorFormat(2);\r
786 PicoScan = EmuScan8;\r
787 PicoScan(0, 0);\r
788 }\r
789 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
790 // setup pal for 8-bit modes\r
791 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
792 localPal[0xd0] = 0x00c00000;\r
720ee7f6 793 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
794 localPal[0xf0] = 0x00ffffff;\r
720ee7f6 795 gp2x_video_setpalette(localPal, 0x100);\r
796 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
797 gp2x_video_flip();\r
720ee7f6 798 }\r
799 Pico.m.dirtyPal = 1;\r
800 // reset scaling\r
79cad122 801 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
802 gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
803 else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
720ee7f6 804}\r
805\r
806\r
dfa4c846 807static void emu_msg_cb(const char *msg)\r
808{\r
809 if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
810 // 8-bit renderers\r
811 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
812 osd_text(4, 232, msg);\r
813 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
814 } else {\r
815 // 16bit accurate renderer\r
816 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
817 osd_text(4, 232, msg);\r
818 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
819 }\r
820 gettimeofday(&noticeMsgTime, 0);\r
821 noticeMsgTime.tv_sec -= 2;\r
e5589947 822\r
823 /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
824 reset_timing = 1;\r
dfa4c846 825}\r
826\r
1078e544 827static void emu_state_cb(const char *str)\r
828{\r
829 clearArea(0);\r
830 blit("", str);\r
831}\r
832\r
5e2e14f2 833static void emu_msg_tray_open(void)\r
834{\r
835 strcpy(noticeMsg, "CD tray opened");\r
836 gettimeofday(&noticeMsgTime, 0);\r
837}\r
838\r
720ee7f6 839static void RunEvents(unsigned int which)\r
840{\r
841 if(which & 0x1800) { // save or load (but not both)\r
842 int do_it = 1;\r
46ede6a6 843 if ( emu_check_save_file(state_slot) &&\r
844 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
845 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
720ee7f6 846 unsigned long keys;\r
46ede6a6 847 blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
720ee7f6 848 while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
849 usleep(50*1024);\r
850 if (keys & GP2X_X) do_it = 0;\r
851 clearArea(0);\r
852 }\r
853 if (do_it) {\r
0805b5b4 854 osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
1078e544 855 PicoStateProgressCB = emu_state_cb;\r
856 gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
0805b5b4 857 emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
1078e544 858 PicoStateProgressCB = NULL;\r
720ee7f6 859 }\r
860\r
861 reset_timing = 1;\r
862 }\r
863 if(which & 0x0400) { // switch renderer\r
864 if ( PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
865 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
866 else currentConfig.EmuOpt &= ~0x80;\r
867\r
868 vidResetMode();\r
869\r
870 if (PicoOpt&0x10) {\r
871 strcpy(noticeMsg, " 8bit fast renderer");\r
872 } else if (currentConfig.EmuOpt&0x80) {\r
873 strcpy(noticeMsg, "16bit accurate renderer");\r
874 } else {\r
875 strcpy(noticeMsg, " 8bit accurate renderer");\r
876 }\r
877\r
878 gettimeofday(&noticeMsgTime, 0);\r
879 }\r
880 if(which & 0x0300) {\r
881 if(which&0x0200) {\r
882 state_slot -= 1;\r
883 if(state_slot < 0) state_slot = 9;\r
884 } else {\r
885 state_slot += 1;\r
886 if(state_slot > 9) state_slot = 0;\r
887 }\r
4ffd2858 888 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
720ee7f6 889 gettimeofday(&noticeMsgTime, 0);\r
890 }\r
891 if(which & 0x0080) {\r
892 engineState = PGS_Menu;\r
893 }\r
894}\r
895\r
896\r
25fced50 897static void updateMovie(void)\r
898{\r
899 int offs = Pico.m.frame_count*3 + 0x40;\r
900 if (offs+3 > movie_size) {\r
901 free(movie_data);\r
902 movie_data = 0;\r
903 strcpy(noticeMsg, "END OF MOVIE.");\r
904 printf("END OF MOVIE.\n");\r
905 gettimeofday(&noticeMsgTime, 0);\r
906 } else {\r
907 // MXYZ SACB RLDU\r
908 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU\r
909 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A\r
910 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B\r
911 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A\r
912 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
913 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
914 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
915 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
916 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
917 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
918 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
919 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
920 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
921 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
922 }\r
923}\r
924\r
925\r
720ee7f6 926static void updateKeys(void)\r
927{\r
928 unsigned long keys, allActions[2] = { 0, 0 }, events;\r
929 static unsigned long prevEvents = 0;\r
930 int joy, i;\r
931\r
932 keys = gp2x_joystick_read(0);\r
933 if (keys & GP2X_SELECT) {\r
934 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
935 // wait until select is released, so menu would not resume game\r
936 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
937 }\r
938\r
939 keys &= CONFIGURABLE_KEYS;\r
940\r
941 for (i = 0; i < 32; i++)\r
942 {\r
943 if (keys & (1 << i)) {\r
944 int pl, acts = currentConfig.KeyBinds[i];\r
945 if (!acts) continue;\r
946 pl = (acts >> 16) & 1;\r
947 if (combo_keys & (1 << i)) {\r
948 int u = i+1, acts_c = acts & combo_acts;\r
949 // let's try to find the other one\r
950 if (acts_c)\r
951 for (; u < 32; u++)\r
952 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
953 allActions[pl] |= acts_c;\r
954 keys &= ~((1 << i) | (1 << u));\r
955 break;\r
956 }\r
957 // add non-combo actions if combo ones were not found\r
958 if (!acts_c || u == 32)\r
959 allActions[pl] |= acts & ~combo_acts;\r
960 } else {\r
961 allActions[pl] |= acts;\r
962 }\r
963 }\r
964 }\r
965\r
966 // add joy inputs\r
967 if (num_of_joys > 0)\r
968 {\r
969 gp2x_usbjoy_update();\r
970 for (joy = 0; joy < num_of_joys; joy++) {\r
971 int keys = gp2x_usbjoy_check2(joy);\r
972 for (i = 0; i < 32; i++) {\r
973 if (keys & (1 << i)) {\r
974 int acts = currentConfig.JoyBinds[joy][i];\r
975 int pl = (acts >> 16) & 1;\r
976 allActions[pl] |= acts;\r
977 }\r
978 }\r
979 }\r
980 }\r
981\r
25fced50 982 PicoPad[0] = (unsigned short) allActions[0];\r
983 PicoPad[1] = (unsigned short) allActions[1];\r
720ee7f6 984\r
985 events = (allActions[0] | allActions[1]) >> 16;\r
986\r
987 // volume is treated in special way and triggered every frame\r
988 if(events & 0x6000) {\r
989 int vol = currentConfig.volume;\r
990 if (events & 0x2000) {\r
5e2e14f2 991 if (vol < 99) vol++;\r
720ee7f6 992 } else {\r
993 if (vol > 0) vol--;\r
994 }\r
995 gp2x_sound_volume(vol, vol);\r
996 sprintf(noticeMsg, "VOL: %02i", vol);\r
997 gettimeofday(&noticeMsgTime, 0);\r
998 currentConfig.volume = vol;\r
999 }\r
1000\r
1001 events &= ~prevEvents;\r
1002 if (events) RunEvents(events);\r
25fced50 1003 if (movie_data) updateMovie();\r
720ee7f6 1004\r
1005 prevEvents = (allActions[0] | allActions[1]) >> 16;\r
1006}\r
1007\r
720ee7f6 1008\r
3ef975c9 1009static void updateSound(int len)\r
720ee7f6 1010{\r
3ef975c9 1011 if (PicoOpt&8) len<<=1;\r
720ee7f6 1012\r
d9a18943 1013 /* avoid writing audio when lagging behind to prevent audio lag */\r
1014 if (PicoSkipFrame != 2)\r
1015 gp2x_sound_write(PsndOut, len<<1);\r
720ee7f6 1016}\r
1017\r
1018\r
d9a18943 1019static void SkipFrame(int do_audio)\r
720ee7f6 1020{\r
d9a18943 1021 PicoSkipFrame=do_audio ? 1 : 2;\r
720ee7f6 1022 PicoFrame();\r
1023 PicoSkipFrame=0;\r
720ee7f6 1024}\r
1025\r
1026\r
4ffd2858 1027void emu_forced_frame(void)\r
1028{\r
1029 int po_old = PicoOpt;\r
1030\r
1031 PicoOpt |= 0x10;\r
1032 PicoFrameFull();\r
4ffd2858 1033\r
1034 if (!(Pico.video.reg[12]&1)) {\r
dccc2bd0 1035 vidCpyM2 = vidCpyM2_32col;\r
4ffd2858 1036 clearArea(1);\r
dccc2bd0 1037 } else vidCpyM2 = vidCpyM2_40col;\r
4ffd2858 1038\r
1039 vidCpyM2((unsigned char *)gp2x_screen+320*8, framebuff+328*8);\r
1040 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
1041 gp2x_video_setpalette(localPal, 0x40);\r
e1aa0fa7 1042\r
1043 PicoOpt = po_old;\r
4ffd2858 1044}\r
1045\r
720ee7f6 1046static void simpleWait(int thissec, int lim_time)\r
1047{\r
1048 struct timeval tval;\r
1049\r
1050 spend_cycles(1024);\r
1051 gettimeofday(&tval, 0);\r
1052 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1053\r
1054 while(tval.tv_usec < lim_time)\r
1055 {\r
1056 spend_cycles(1024);\r
1057 gettimeofday(&tval, 0);\r
1058 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1059 }\r
1060}\r
1061\r
1062\r
1063void emu_Loop(void)\r
1064{\r
1065 static int gp2x_old_clock = 200;\r
59d0f042 1066 static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
720ee7f6 1067 char fpsbuff[24]; // fps count c string\r
1068 struct timeval tval; // timing\r
1069 int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
59d0f042 1070 int target_fps, target_frametime, lim_time, vsync_offset, i;\r
720ee7f6 1071 char *notice = 0;\r
1072\r
1073 printf("entered emu_Loop()\n");\r
1074\r
1075 if (gp2x_old_clock != currentConfig.CPUclock) {\r
1076 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
1077 set_FCLK(currentConfig.CPUclock);\r
1078 gp2x_old_clock = currentConfig.CPUclock;\r
1079 printf(" done\n");\r
1080 }\r
1081\r
1082 if (gp2x_old_gamma != currentConfig.gamma) {\r
1083 set_gamma(currentConfig.gamma);\r
1084 gp2x_old_gamma = currentConfig.gamma;\r
1085 printf("updated gamma to %i\n", currentConfig.gamma);\r
1086 }\r
1087\r
59d0f042 1088 if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
1089 if (currentConfig.EmuOpt&0x2000)\r
1090 set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
1091 else unset_LCD_custom_rate();\r
1092 }\r
1093\r
1094 EmuOpt_old = currentConfig.EmuOpt;\r
720ee7f6 1095 fpsbuff[0] = 0;\r
1096\r
1097 // make sure we are in correct mode\r
1098 vidResetMode();\r
e5d315a5 1099 Pico.m.dirtyPal = 1;\r
720ee7f6 1100 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
1101 find_combos();\r
1102\r
1103 // pal/ntsc might have changed, reset related stuff\r
1104 target_fps = Pico.m.pal ? 50 : 60;\r
1105 target_frametime = 1000000/target_fps;\r
1106 reset_timing = 1;\r
1107\r
1108 // prepare sound stuff\r
1109 if(currentConfig.EmuOpt & 4) {\r
3ef975c9 1110 int snd_excess_add;\r
720ee7f6 1111 if(PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old || crashed_940) {\r
1112 /* if 940 is turned off, we need it to be put back to sleep */\r
1113 if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
8dfb9fd5 1114 Reset940(1, 2);\r
720ee7f6 1115 Pause940(1);\r
1116 }\r
3ef975c9 1117 sound_rerate(1);\r
720ee7f6 1118 }\r
1119 //excess_samples = PsndRate - PsndLen*target_fps;\r
720ee7f6 1120 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1121 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
1122 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
1123 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
1124 PicoWriteSound = updateSound;\r
3ef975c9 1125 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1126 PsndOut = sndBuffer;\r
720ee7f6 1127 PsndRate_old = PsndRate;\r
1128 PsndLen_real = PsndLen;\r
1129 PicoOpt_old = PicoOpt;\r
1130 pal_old = Pico.m.pal;\r
1131 } else {\r
1132 PsndOut = 0;\r
1133 }\r
1134\r
5f9922e6 1135 // prepare CD buffer\r
1136 if (PicoMCD & 1) PicoCDBufferInit();\r
1137\r
59d0f042 1138 // calc vsync offset to sync timing code with vsync\r
1139 if (currentConfig.EmuOpt&0x2000) {\r
1140 gettimeofday(&tval, 0);\r
1141 gp2x_video_wait_vsync();\r
1142 gettimeofday(&tval, 0);\r
1143 vsync_offset = tval.tv_usec;\r
1144 while (vsync_offset >= target_frametime)\r
1145 vsync_offset -= target_frametime;\r
1146 if (!vsync_offset) vsync_offset++;\r
1147 printf("vsync_offset: %i\n", vsync_offset);\r
1148 } else\r
1149 vsync_offset = 0;\r
1150\r
720ee7f6 1151 // loop?\r
1152 while (engineState == PGS_Running)\r
1153 {\r
1154 int modes;\r
1155\r
1156 gettimeofday(&tval, 0);\r
1157 if(reset_timing) {\r
1158 reset_timing = 0;\r
1159 thissec = tval.tv_sec;\r
1160 frames_shown = frames_done = tval.tv_usec/target_frametime;\r
1161 }\r
1162\r
1163 // show notice message?\r
1164 if(noticeMsgTime.tv_sec) {\r
1165 static int noticeMsgSum;\r
1166 if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
1167 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
1168 clearArea(0);\r
1169 notice = 0;\r
1170 } else {\r
1171 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
1172 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
1173 notice = noticeMsg;\r
1174 }\r
1175 }\r
1176\r
1177 // check for mode changes\r
1178 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
1179 if (modes != oldmodes) {\r
1180 int scalex = 320;\r
1181 osd_fps_x = OSD_FPS_X;\r
1182 if (modes & 4) {\r
1183 vidCpyM2 = vidCpyM2_40col;\r
1184 } else {\r
1185 if (PicoOpt & 0x100) {\r
1186 vidCpyM2 = vidCpyM2_32col_nobord;\r
1187 scalex = 256;\r
1188 osd_fps_x = OSD_FPS_X - 64;\r
1189 } else {\r
1190 vidCpyM2 = vidCpyM2_32col;\r
1191 }\r
1192 }\r
79cad122 1193 if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
1194 gp2x_video_RGB_setscaling(8, scalex, 224);\r
1195 else gp2x_video_RGB_setscaling(0, scalex, 240);\r
720ee7f6 1196 oldmodes = modes;\r
1197 clearArea(1);\r
1198 }\r
1199\r
1200 // second changed?\r
1201 if(thissec != tval.tv_sec) {\r
1202#ifdef BENCHMARK\r
1203 static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1204 if(++bench == 10) {\r
1205 bench = 0;\r
1206 bench_fps_s = bench_fps;\r
1207 bf[bfp++ & 3] = bench_fps;\r
1208 bench_fps = 0;\r
1209 }\r
1210 bench_fps += frames_shown;\r
1211 sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1212#else\r
1213 if(currentConfig.EmuOpt & 2)\r
1214 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1215#endif\r
1216 thissec = tval.tv_sec;\r
1217\r
1218 if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
1219 frames_done = frames_shown = 0;\r
1220 } else {\r
1221 // it is quite common for this implementation to leave 1 fame unfinished\r
1222 // when second changes, but we don't want buffer to starve.\r
1223 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
1224 updateKeys();\r
d9a18943 1225 SkipFrame(1); frames_done++;\r
720ee7f6 1226 }\r
1227\r
1228 frames_done -= target_fps; if (frames_done < 0) frames_done = 0;\r
1229 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
1230 if (frames_shown > frames_done) frames_shown = frames_done;\r
1231 }\r
1232 }\r
59d0f042 1233\r
1234 lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
720ee7f6 1235 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
1236 for(i = 0; i < currentConfig.Frameskip; i++) {\r
1237 updateKeys();\r
d9a18943 1238 SkipFrame(1); frames_done++;\r
720ee7f6 1239 if (PsndOut) { // do framelimitting if sound is enabled\r
1240 gettimeofday(&tval, 0);\r
1241 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1242 if(tval.tv_usec < lim_time) { // we are too fast\r
1243 simpleWait(thissec, lim_time);\r
1244 }\r
1245 }\r
1246 lim_time += target_frametime;\r
1247 }\r
1248 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
1249 // no time left for this frame - skip\r
d032c15a 1250 if (tval.tv_usec - lim_time >= 0x300000) {\r
1251 /* something caused a slowdown for us (disk access? cache flush?)\r
1252 * try to recover by resetting timing... */\r
1253 reset_timing = 1;\r
1254 continue;\r
1255 }\r
720ee7f6 1256 updateKeys();\r
8f1b51ef 1257 SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
720ee7f6 1258 continue;\r
1259 }\r
1260\r
1261 updateKeys();\r
1262 PicoFrame();\r
1263\r
47f22a1f 1264#if 0\r
1265if (Pico.m.frame_count == 31563) {\r
1266 FILE *f;\r
1267 f = fopen("ram_p.bin", "wb");\r
1268 if (!f) { printf("!f\n"); exit(1); }\r
1269 fwrite(Pico.ram, 1, 0x10000, f);\r
1270 fclose(f);\r
1271 exit(0);\r
1272}\r
1273#endif\r
1a20dbc8 1274#if 0\r
1275 // debug\r
1276 {\r
47f22a1f 1277 #define BYTE unsigned char\r
1278 #define WORD unsigned short\r
1279 struct\r
1280 {\r
1281 BYTE IDLength; /* 00h Size of Image ID field */\r
1282 BYTE ColorMapType; /* 01h Color map type */\r
1283 BYTE ImageType; /* 02h Image type code */\r
1284 WORD CMapStart; /* 03h Color map origin */\r
1285 WORD CMapLength; /* 05h Color map length */\r
1286 BYTE CMapDepth; /* 07h Depth of color map entries */\r
1287 WORD XOffset; /* 08h X origin of image */\r
1288 WORD YOffset; /* 0Ah Y origin of image */\r
1289 WORD Width; /* 0Ch Width of image */\r
1290 WORD Height; /* 0Eh Height of image */\r
1291 BYTE PixelDepth; /* 10h Image pixel size */\r
1292 BYTE ImageDescriptor; /* 11h Image descriptor byte */\r
1293 } __attribute__((packed)) TGAHEAD;\r
1294 static unsigned short oldscr[320*240];\r
1a20dbc8 1295 FILE *f; char name[128]; int i;\r
47f22a1f 1296\r
1297 memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
1298 TGAHEAD.ImageType = 2;\r
1299 TGAHEAD.Width = 320;\r
1300 TGAHEAD.Height = 240;\r
1301 TGAHEAD.PixelDepth = 16;\r
1302 TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
1303\r
1304 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
1305\r
1306 for (i = 0; i < 320*240; i++)\r
1307 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
1308 if (i < 320*240)\r
1a20dbc8 1309 {\r
47f22a1f 1310 for (i = 0; i < 320*240; i++)\r
1311 oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
1312 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
1a20dbc8 1313 f = fopen(name, "wb");\r
1314 if (!f) { printf("!f\n"); exit(1); }\r
47f22a1f 1315 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
1316 fwrite(oldscr, 1, 320*240*2, f);\r
1a20dbc8 1317 fclose(f);\r
1318 }\r
1319 }\r
1320#endif\r
1321\r
720ee7f6 1322 // check time\r
1323 gettimeofday(&tval, 0);\r
d032c15a 1324 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
720ee7f6 1325\r
d032c15a 1326 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 0x300000) // slowdown detection\r
1327 reset_timing = 1;\r
1328 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
720ee7f6 1329 {\r
59d0f042 1330 // sleep or vsync if we are still too fast\r
720ee7f6 1331 // usleep sleeps for ~20ms minimum, so it is not a solution here\r
720ee7f6 1332 if(tval.tv_usec < lim_time)\r
1333 {\r
1334 // we are too fast\r
59d0f042 1335 if (vsync_offset) {\r
1336 if (lim_time - tval.tv_usec > target_frametime/2)\r
1337 simpleWait(thissec, lim_time - target_frametime/4);\r
1338 gp2x_video_wait_vsync();\r
1339 } else {\r
1340 simpleWait(thissec, lim_time);\r
1341 }\r
720ee7f6 1342 }\r
1343 }\r
1344\r
1345 blit(fpsbuff, notice);\r
1346\r
1347 frames_done++; frames_shown++;\r
1348 }\r
1349\r
5f9922e6 1350\r
1351 if (PicoMCD & 1) PicoCDBufferFree();\r
1352\r
720ee7f6 1353 // save SRAM\r
1354 if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
6ab2f79c 1355 emu_state_cb("Writing SRAM/BRAM..");\r
720ee7f6 1356 emu_SaveLoadGame(0, 1);\r
1357 SRam.changed = 0;\r
1358 }\r
e5d315a5 1359\r
1360 // if in 16bit mode, generate 8it image for menu background\r
4ffd2858 1361 if (!(PicoOpt&0x10) && (currentConfig.EmuOpt&0x80))\r
1362 emu_forced_frame();\r
0805b5b4 1363\r
1364 // for menu bg\r
4ffd2858 1365 gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);\r
720ee7f6 1366}\r
1367\r
1368\r
1369void emu_ResetGame(void)\r
1370{\r
1371 PicoReset(0);\r
1372 reset_timing = 1;\r
1373}\r
1374\r
1375\r
1376size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1377{\r
1378 return gzread(file, p, _n);\r
1379}\r
1380\r
1381\r
1382size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1383{\r
1384 return gzwrite(file, p, _n);\r
1385}\r
1386\r
4ffd2858 1387static int try_ropen_file(const char *fname)\r
1388{\r
1389 FILE *f;\r
1390\r
1391 f = fopen(fname, "rb");\r
1392 if (f) {\r
1393 fclose(f);\r
1394 return 1;\r
1395 }\r
1396 return 0;\r
1397}\r
1398\r
1399char *emu_GetSaveFName(int load, int is_sram, int slot)\r
1400{\r
1401 static char saveFname[512];\r
1402 char ext[16];\r
1403\r
1404 if (is_sram)\r
1405 {\r
1406 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
1407 if (load) {\r
1408 if (try_ropen_file(saveFname)) return saveFname;\r
1409 // try in current dir..\r
1410 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
1411 if (try_ropen_file(saveFname)) return saveFname;\r
1412 return NULL; // give up\r
1413 }\r
1414 }\r
1415 else\r
1416 {\r
1417 ext[0] = 0;\r
1418 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1419 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
1420\r
1421 romfname_ext(saveFname, "mds/", ext);\r
1422 if (load) {\r
1423 if (try_ropen_file(saveFname)) return saveFname;\r
1424 romfname_ext(saveFname, NULL, ext);\r
1425 if (try_ropen_file(saveFname)) return saveFname;\r
1426 if (currentConfig.EmuOpt & 8) {\r
1427 ext[0] = 0;\r
1428 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1429 strcat(ext, ".mds");\r
1430\r
1431 romfname_ext(saveFname, "mds/", ext);\r
1432 if (try_ropen_file(saveFname)) return saveFname;\r
1433 romfname_ext(saveFname, NULL, ext);\r
1434 if (try_ropen_file(saveFname)) return saveFname;\r
1435 }\r
1436 return NULL;\r
1437 }\r
1438 }\r
1439\r
1440 return saveFname;\r
1441}\r
1442\r
1443int emu_check_save_file(int slot)\r
1444{\r
1445 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
1446}\r
1447\r
1448void emu_set_save_cbs(int gz)\r
1449{\r
1450 if (gz) {\r
1451 areaRead = gzRead2;\r
1452 areaWrite = gzWrite2;\r
1453 areaEof = (areaeof *) gzeof;\r
1454 areaSeek = (areaseek *) gzseek;\r
1455 areaClose = (areaclose *) gzclose;\r
1456 } else {\r
1457 areaRead = (arearw *) fread;\r
1458 areaWrite = (arearw *) fwrite;\r
1459 areaEof = (areaeof *) feof;\r
1460 areaSeek = (areaseek *) fseek;\r
1461 areaClose = (areaclose *) fclose;\r
1462 }\r
1463}\r
720ee7f6 1464\r
1465int emu_SaveLoadGame(int load, int sram)\r
1466{\r
1467 int ret = 0;\r
4ffd2858 1468 char *saveFname;\r
720ee7f6 1469\r
1470 // make save filename\r
4ffd2858 1471 saveFname = emu_GetSaveFName(load, sram, state_slot);\r
1472 if (saveFname == NULL) {\r
dccc2bd0 1473 if (!sram) {\r
1474 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");\r
1475 gettimeofday(&noticeMsgTime, 0);\r
1476 }\r
4ffd2858 1477 return -1;\r
720ee7f6 1478 }\r
1479\r
1480 printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1481\r
1482 if(sram) {\r
1483 FILE *sramFile;\r
15f38574 1484 int sram_size;\r
1485 unsigned char *sram_data;\r
6ab2f79c 1486 int truncate = 1;\r
15f38574 1487 if (PicoMCD&1) {\r
6ab2f79c 1488 if (PicoOpt&0x8000) { // MCD RAM cart?\r
1489 sram_size = 0x12000;\r
1490 sram_data = SRam.data;\r
1491 if (sram_data)\r
1492 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
1493 } else {\r
1494 sram_size = 0x2000;\r
1495 sram_data = Pico_mcd->bram;\r
1496 truncate = 0; // the .brm may contain RAM cart data after normal brm\r
1497 }\r
15f38574 1498 } else {\r
1499 sram_size = SRam.end-SRam.start+1;\r
1500 if(SRam.reg_back & 4) sram_size=0x2000;\r
1501 sram_data = SRam.data;\r
1502 }\r
6ab2f79c 1503 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
15f38574 1504\r
6ab2f79c 1505 if (load) {\r
720ee7f6 1506 sramFile = fopen(saveFname, "rb");\r
1507 if(!sramFile) return -1;\r
15f38574 1508 fread(sram_data, 1, sram_size, sramFile);\r
720ee7f6 1509 fclose(sramFile);\r
6ab2f79c 1510 if ((PicoMCD&1) && (PicoOpt&0x8000))\r
1511 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
720ee7f6 1512 } else {\r
1513 // sram save needs some special processing\r
1514 // see if we have anything to save\r
6ab2f79c 1515 for (; sram_size > 0; sram_size--)\r
1516 if (sram_data[sram_size-1]) break;\r
720ee7f6 1517\r
6ab2f79c 1518 if (sram_size) {\r
1519 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
4ac747cb 1520 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
1521 if (!sramFile) return -1;\r
15f38574 1522 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
720ee7f6 1523 ret = (ret != sram_size) ? -1 : 0;\r
1524 fclose(sramFile);\r
79cad122 1525#ifndef NO_SYNC\r
720ee7f6 1526 sync();\r
79cad122 1527#endif\r
720ee7f6 1528 }\r
1529 }\r
1530 return ret;\r
15f38574 1531 }\r
1532 else\r
1533 {\r
720ee7f6 1534 void *PmovFile = NULL;\r
4ffd2858 1535 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
720ee7f6 1536 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
4ffd2858 1537 emu_set_save_cbs(1);\r
720ee7f6 1538 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
4ffd2858 1539 }\r
720ee7f6 1540 }\r
4ffd2858 1541 else\r
1542 {\r
720ee7f6 1543 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
4ffd2858 1544 emu_set_save_cbs(0);\r
720ee7f6 1545 }\r
1546 }\r
1547 if(PmovFile) {\r
98c9d8d9 1548 ret = PmovState(load ? 6 : 5, PmovFile);\r
4ffd2858 1549 areaClose(PmovFile);\r
720ee7f6 1550 PmovFile = 0;\r
79cad122 1551 if (load) Pico.m.dirtyPal=1;\r
1552#ifndef NO_SYNC\r
1553 else sync();\r
1554#endif\r
98c9d8d9 1555 }\r
1556 else ret = -1;\r
1557 if (!ret)\r
1558 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");\r
1559 else\r
1560 {\r
720ee7f6 1561 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");\r
1562 ret = -1;\r
1563 }\r
1564\r
1565 gettimeofday(&noticeMsgTime, 0);\r
1566 return ret;\r
1567 }\r
1568}\r
PicoDrive's frontend in a lib