gp2x/emu.c

   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 //#define PFRAMES\r
  30 \r
  31 #ifdef BENCHMARK\r
  32 #define OSD_FPS_X 220\r
  33 #else\r
  34 #define OSD_FPS_X 260\r
  35 #endif\r
  36 \r
  37 \r
  38 int engineState;\r
  39 int select_exits = 0;\r
  40 char *PicoConfigFile = "picoconfig.bin";\r
  41 currentConfig_t currentConfig;\r
  42 \r
  43 char romFileName[PATH_MAX];\r
  44 unsigned char *rom_data = NULL;\r
  45 \r
  46 extern int crashed_940;\r
  47 \r
  48 static short sndBuffer[2*44100/50];\r
  49 static char noticeMsg[64];                                      // notice msg to draw\r
  50 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
  51 static int osd_fps_x;\r
  52 static int combo_keys = 0, combo_acts = 0;      // keys and actions which need button combos\r
  53 static int gp2x_old_gamma = 100;\r
  54 static unsigned char *movie_data = NULL;\r
  55 static int movie_size = 0;\r
  56 unsigned char *PicoDraw2FB = NULL;  // temporary buffer for alt renderer\r
  57 int state_slot = 0;\r
  58 int reset_timing = 0;\r
  59 int config_slot = 0, config_slot_current = 0;\r
  60 \r
  61 \r
  62 // utilities\r
  63 static void strlwr(char* string)\r
  64 {\r
  65         while ( (*string++ = (char)tolower(*string)) );\r
  66 }\r
  67 \r
  68 static int try_rfn_cut(void)\r
  69 {\r
  70         FILE *tmp;\r
  71         char *p;\r
  72 \r
  73         p = romFileName + strlen(romFileName) - 1;\r
  74         for (; p > romFileName; p--)\r
  75                 if (*p == '.') break;\r
  76         *p = 0;\r
  77 \r
  78         if((tmp = fopen(romFileName, "rb"))) {\r
  79                 fclose(tmp);\r
  80                 return 1;\r
  81         }\r
  82         return 0;\r
  83 }\r
  84 \r
  85 static void get_ext(char *file, char *ext)\r
  86 {\r
  87         char *p;\r
  88 \r
  89         p = file + strlen(file) - 4;\r
  90         if (p < file) p = file;\r
  91         strncpy(ext, p, 4);\r
  92         ext[4] = 0;\r
  93         strlwr(ext);\r
  94 }\r
  95 \r
  96 char *biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210" };\r
  97 char *biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303",   "eu_mcd1_9210" };\r
  98 char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };\r
  99 \r
 100 extern char **g_argv;\r
 101 \r
 102 int find_bios(int region, char **bios_file)\r
 103 {\r
 104         static char bios_path[1024];\r
 105         int i, j, count;\r
 106         char **files;\r
 107         FILE *f = NULL;\r
 108 \r
 109         if (region == 4) { // US\r
 110                 files = biosfiles_us;\r
 111                 count = sizeof(biosfiles_us) / sizeof(char *);\r
 112         } else if (region == 8) { // EU\r
 113                 files = biosfiles_eu;\r
 114                 count = sizeof(biosfiles_eu) / sizeof(char *);\r
 115         } else if (region == 1 || region == 2) {\r
 116                 files = biosfiles_jp;\r
 117                 count = sizeof(biosfiles_jp) / sizeof(char *);\r
 118         } else {\r
 119                 return 0;\r
 120         }\r
 121 \r
 122         for (i = 0; i < count; i++)\r
 123         {\r
 124                 strncpy(bios_path, g_argv[0], 1023);\r
 125                 bios_path[1024-32] = 0;\r
 126                 for (j = strlen(bios_path); j > 0; j--)\r
 127                         if (bios_path[j] == '/') { bios_path[j+1] = 0; break; }\r
 128                 strcat(bios_path, files[i]);\r
 129                 strcat(bios_path, ".bin");\r
 130                 f = fopen(bios_path, "rb");\r
 131                 if (f) break;\r
 132 \r
 133                 bios_path[strlen(bios_path) - 4] = 0;\r
 134                 strcat(bios_path, ".zip");\r
 135                 f = fopen(bios_path, "rb");\r
 136                 if (f) break;\r
 137         }\r
 138 \r
 139         if (f) {\r
 140                 printf("using bios: %s\n", bios_path);\r
 141                 fclose(f);\r
 142                 if (bios_file) *bios_file = bios_path;\r
 143                 return 1;\r
 144         } else {\r
 145                 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",\r
 146                         region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
 147                 printf("%s\n", menuErrorMsg);\r
 148                 return 0;\r
 149         }\r
 150 }\r
 151 \r
 152 /* checks if romFileName points to valid MegaCD image\r
 153  * if so, checks for suitable BIOS */\r
 154 int emu_cd_check(int *pregion)\r
 155 {\r
 156         unsigned char buf[32];\r
 157         pm_file *cd_f;\r
 158         int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe\r
 159 \r
 160         cd_f = pm_open(romFileName);\r
 161         if (!cd_f) return 0; // let the upper level handle this\r
 162 \r
 163         if (pm_read(buf, 32, cd_f) != 32) {\r
 164                 pm_close(cd_f);\r
 165                 return 0;\r
 166         }\r
 167 \r
 168         if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1;       // Sega CD (ISO)\r
 169         if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2;       // Sega CD (BIN)\r
 170         if (type == 0) {\r
 171                 pm_close(cd_f);\r
 172                 return 0;\r
 173         }\r
 174 \r
 175         /* it seems we have a CD image here. Try to detect region now.. */\r
 176         pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);\r
 177         pm_read(buf, 1, cd_f);\r
 178         pm_close(cd_f);\r
 179 \r
 180         if (buf[0] == 0x64) region = 8; // EU\r
 181         if (buf[0] == 0xa1) region = 1; // JAP\r
 182 \r
 183         printf("detected %s Sega/Mega CD image with %s region\n",\r
 184                 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");\r
 185 \r
 186         if (pregion != NULL) *pregion = region;\r
 187 \r
 188         return type;\r
 189 }\r
 190 \r
 191 int emu_ReloadRom(void)\r
 192 {\r
 193         unsigned int rom_size = 0;\r
 194         char *used_rom_name = romFileName;\r
 195         char ext[5];\r
 196         pm_file *rom;\r
 197         int ret, cd_state, cd_region, cfg_loaded = 0;\r
 198 \r
 199         printf("emu_ReloadRom(%s)\n", romFileName);\r
 200 \r
 201         get_ext(romFileName, ext);\r
 202 \r
 203         // detect wrong extensions\r
 204         if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz\r
 205                 sprintf(menuErrorMsg, "Not a ROM selected.");\r
 206                 return 0;\r
 207         }\r
 208 \r
 209         PicoPatchUnload();\r
 210 \r
 211         // check for movie file\r
 212         if(movie_data) {\r
 213                 free(movie_data);\r
 214                 movie_data = 0;\r
 215         }\r
 216         if(!strcmp(ext, ".gmv")) {\r
 217                 // check for both gmv and rom\r
 218                 int dummy;\r
 219                 FILE *movie_file = fopen(romFileName, "rb");\r
 220                 if(!movie_file) {\r
 221                         sprintf(menuErrorMsg, "Failed to open movie.");\r
 222                         return 0;\r
 223                 }\r
 224                 fseek(movie_file, 0, SEEK_END);\r
 225                 movie_size = ftell(movie_file);\r
 226                 fseek(movie_file, 0, SEEK_SET);\r
 227                 if(movie_size < 64+3) {\r
 228                         sprintf(menuErrorMsg, "Invalid GMV file.");\r
 229                         fclose(movie_file);\r
 230                         return 0;\r
 231                 }\r
 232                 movie_data = malloc(movie_size);\r
 233                 if(movie_data == NULL) {\r
 234                         sprintf(menuErrorMsg, "low memory.");\r
 235                         fclose(movie_file);\r
 236                         return 0;\r
 237                 }\r
 238                 fread(movie_data, 1, movie_size, movie_file);\r
 239                 fclose(movie_file);\r
 240                 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {\r
 241                         sprintf(menuErrorMsg, "Invalid GMV file.");\r
 242                         return 0;\r
 243                 }\r
 244                 dummy = try_rfn_cut() || try_rfn_cut();\r
 245                 if (!dummy) {\r
 246                         sprintf(menuErrorMsg, "Could't find a ROM for movie.");\r
 247                         return 0;\r
 248                 }\r
 249                 get_ext(romFileName, ext);\r
 250         }\r
 251         else if (!strcmp(ext, ".pat")) {\r
 252                 int dummy;\r
 253                 PicoPatchLoad(romFileName);\r
 254                 dummy = try_rfn_cut() || try_rfn_cut();\r
 255                 if (!dummy) {\r
 256                         sprintf(menuErrorMsg, "Could't find a ROM to patch.");\r
 257                         return 0;\r
 258                 }\r
 259                 get_ext(romFileName, ext);\r
 260         }\r
 261 \r
 262         if ((PicoMCD & 1) && Pico_mcd != NULL)\r
 263                 Stop_CD();\r
 264 \r
 265         // check for MegaCD image\r
 266         cd_state = emu_cd_check(&cd_region);\r
 267         if (cd_state > 0)\r
 268         {\r
 269                 // valid CD image, check for BIOS..\r
 270 \r
 271                 // we need to have config loaded at this point\r
 272                 ret = emu_ReadConfig(1, 1);\r
 273                 if (!ret) emu_ReadConfig(0, 1);\r
 274                 cfg_loaded = 1;\r
 275 \r
 276                 if (PicoRegionOverride) {\r
 277                         cd_region = PicoRegionOverride;\r
 278                         printf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");\r
 279                 }\r
 280                 if (!find_bios(cd_region, &used_rom_name)) {\r
 281                         // bios_help() ?\r
 282                         return 0;\r
 283                 }\r
 284 \r
 285                 PicoMCD |= 1;\r
 286                 get_ext(used_rom_name, ext);\r
 287         }\r
 288         else\r
 289         {\r
 290                 if (PicoMCD & 1) Stop_CD();\r
 291                 PicoMCD &= ~1;\r
 292         }\r
 293 \r
 294         rom = pm_open(used_rom_name);\r
 295         if(!rom) {\r
 296                 sprintf(menuErrorMsg, "Failed to open rom.");\r
 297                 return 0;\r
 298         }\r
 299 \r
 300         menu_romload_prepare(used_rom_name);\r
 301 \r
 302         if(rom_data) {\r
 303                 free(rom_data);\r
 304                 rom_data = 0;\r
 305                 rom_size = 0;\r
 306         }\r
 307 \r
 308         if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {\r
 309                 sprintf(menuErrorMsg, "PicoCartLoad() failed.");\r
 310                 printf("%s\n", menuErrorMsg);\r
 311                 pm_close(rom);\r
 312                 menu_romload_end();\r
 313                 return 0;\r
 314         }\r
 315         pm_close(rom);\r
 316         menu_romload_end();\r
 317 \r
 318         // detect wrong files (Pico crashes on very small files), also see if ROM EP is good\r
 319         if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||\r
 320           ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {\r
 321                 if (rom_data) free(rom_data);\r
 322                 rom_data = 0;\r
 323                 sprintf(menuErrorMsg, "Not a ROM selected.");\r
 324                 return 0;\r
 325         }\r
 326 \r
 327         // load config for this ROM (do this before insert to get correct region)\r
 328         if (!cfg_loaded) {\r
 329                 ret = emu_ReadConfig(1, 1);\r
 330                 if (!ret) emu_ReadConfig(0, 1);\r
 331         }\r
 332 \r
 333         printf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);\r
 334         if(PicoCartInsert(rom_data, rom_size)) {\r
 335                 sprintf(menuErrorMsg, "Failed to load ROM.");\r
 336                 return 0;\r
 337         }\r
 338 \r
 339         Pico.m.frame_count = 0;\r
 340 \r
 341         // insert CD if it was detected\r
 342         if (cd_state > 0) {\r
 343                 ret = Insert_CD(romFileName, cd_state == 2);\r
 344                 if (ret != 0) {\r
 345                         sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");\r
 346                         printf("%s\n", menuErrorMsg);\r
 347                         return 0;\r
 348                 }\r
 349         }\r
 350 \r
 351         // emu_ReadConfig() might have messed currentConfig.lastRomFile\r
 352         strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);\r
 353         currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;\r
 354 \r
 355         if (PicoPatches) {\r
 356                 PicoPatchPrepare();\r
 357                 PicoPatchApply();\r
 358         }\r
 359 \r
 360         // additional movie stuff\r
 361         if (movie_data) {\r
 362                 if(movie_data[0x14] == '6')\r
 363                      PicoOpt |=  0x20; // 6 button pad\r
 364                 else PicoOpt &= ~0x20;\r
 365                 PicoOpt |= 0x10040; // accurate timing, no VDP fifo timing\r
 366                 if(movie_data[0xF] >= 'A') {\r
 367                         if(movie_data[0x16] & 0x80) {\r
 368                                 PicoRegionOverride = 8;\r
 369                         } else {\r
 370                                 PicoRegionOverride = 4;\r
 371                         }\r
 372                         PicoReset(0);\r
 373                         // TODO: bits 6 & 5\r
 374                 }\r
 375                 movie_data[0x18+30] = 0;\r
 376                 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);\r
 377         }\r
 378         else\r
 379         {\r
 380                 PicoOpt &= ~0x10000;\r
 381                 if(Pico.m.pal) {\r
 382                         strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");\r
 383                 } else {\r
 384                         strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");\r
 385                 }\r
 386         }\r
 387         gettimeofday(&noticeMsgTime, 0);\r
 388 \r
 389         // load SRAM for this ROM\r
 390         if(currentConfig.EmuOpt & 1)\r
 391                 emu_SaveLoadGame(1, 1);\r
 392 \r
 393         return 1;\r
 394 }\r
 395 \r
 396 \r
 397 static void emu_msg_cb(const char *msg);\r
 398 static void emu_msg_tray_open(void);\r
 399 \r
 400 void emu_Init(void)\r
 401 {\r
 402         // make temp buffer for alt renderer\r
 403         PicoDraw2FB = malloc((8+320)*(8+240+8));\r
 404         if (!PicoDraw2FB)\r
 405         {\r
 406                 printf("PicoDraw2FB == 0\n");\r
 407         }\r
 408 \r
 409         // make dirs for saves, cfgs, etc.\r
 410         mkdir("mds", 0777);\r
 411         mkdir("srm", 0777);\r
 412         mkdir("brm", 0777);\r
 413         mkdir("cfg", 0777);\r
 414 \r
 415         PicoInit();\r
 416         PicoMessage = emu_msg_cb;\r
 417         PicoMCDopenTray = emu_msg_tray_open;\r
 418         PicoMCDcloseTray = menu_loop_tray;\r
 419 }\r
 420 \r
 421 \r
 422 static void romfname_ext(char *dst, const char *prefix, const char *ext)\r
 423 {\r
 424         char *p;\r
 425         int prefix_len = 0;\r
 426 \r
 427         // make save filename\r
 428         for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;\r
 429         *dst = 0;\r
 430         if (prefix) {\r
 431                 strcpy(dst, prefix);\r
 432                 prefix_len = strlen(prefix);\r
 433         }\r
 434         strncpy(dst + prefix_len, p, 511-prefix_len);\r
 435         dst[511-8] = 0;\r
 436         if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;\r
 437         if (ext) strcat(dst, ext);\r
 438 }\r
 439 \r
 440 \r
 441 static void find_combos(void)\r
 442 {\r
 443         int act, u;\r
 444 \r
 445         // find out which keys and actions are combos\r
 446         combo_keys = combo_acts = 0;\r
 447         for (act = 0; act < 32; act++)\r
 448         {\r
 449                 int keyc = 0;\r
 450                 if (act == 16) continue; // player2 flag\r
 451                 for (u = 0; u < 32; u++)\r
 452                 {\r
 453                         if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;\r
 454                 }\r
 455                 if (keyc > 1)\r
 456                 {\r
 457                         // loop again and mark those keys and actions as combo\r
 458                         for (u = 0; u < 32; u++)\r
 459                         {\r
 460                                 if (currentConfig.KeyBinds[u] & (1 << act)) {\r
 461                                         combo_keys |= 1 << u;\r
 462                                         combo_acts |= 1 << act;\r
 463                                 }\r
 464                         }\r
 465                 }\r
 466         }\r
 467         // printf("combo keys/acts: %08x %08x\n", combo_keys, combo_acts);\r
 468 }\r
 469 \r
 470 \r
 471 void scaling_update(void)\r
 472 {\r
 473         PicoOpt &= ~0x4100;\r
 474         switch (currentConfig.scaling) {\r
 475                 default: break; // off\r
 476                 case 1:  // hw hor\r
 477                 case 2:  PicoOpt |=  0x0100; break; // hw hor+vert\r
 478                 case 3:  PicoOpt |=  0x4000; break; // sw hor\r
 479         }\r
 480 }\r
 481 \r
 482 \r
 483 int emu_ReadConfig(int game, int no_defaults)\r
 484 {\r
 485         FILE *f;\r
 486         char cfg[512], extbuf[16];\r
 487         int bread = 0;\r
 488 \r
 489         if (!game)\r
 490         {\r
 491                 if (!no_defaults)\r
 492                 {\r
 493                         // set default config\r
 494                         memset(&currentConfig, 0, sizeof(currentConfig));\r
 495                         currentConfig.lastRomFile[0] = 0;\r
 496                         currentConfig.EmuOpt  = 0x1f | 0x600; // | confirm_save, cd_leds\r
 497                         currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940, cd_pcm, cd_cdda\r
 498                         currentConfig.PsndRate = 22050; // 44100;\r
 499                         currentConfig.PicoRegion = 0; // auto\r
 500                         currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP\r
 501                         currentConfig.Frameskip = -1; // auto\r
 502                         currentConfig.CPUclock = 200;\r
 503                         currentConfig.volume = 50;\r
 504                         currentConfig.KeyBinds[ 0] = 1<<0; // SACB RLDU\r
 505                         currentConfig.KeyBinds[ 4] = 1<<1;\r
 506                         currentConfig.KeyBinds[ 2] = 1<<2;\r
 507                         currentConfig.KeyBinds[ 6] = 1<<3;\r
 508                         currentConfig.KeyBinds[14] = 1<<4;\r
 509                         currentConfig.KeyBinds[13] = 1<<5;\r
 510                         currentConfig.KeyBinds[12] = 1<<6;\r
 511                         currentConfig.KeyBinds[ 8] = 1<<7;\r
 512                         currentConfig.KeyBinds[15] = 1<<26; // switch rend\r
 513                         currentConfig.KeyBinds[10] = 1<<27; // save state\r
 514                         currentConfig.KeyBinds[11] = 1<<28; // load state\r
 515                         currentConfig.KeyBinds[23] = 1<<29; // vol up\r
 516                         currentConfig.KeyBinds[22] = 1<<30; // vol down\r
 517                         currentConfig.gamma = 100;\r
 518                         currentConfig.PicoCDBuffers = 64;\r
 519                         currentConfig.scaling = 0;\r
 520                 }\r
 521                 strncpy(cfg, PicoConfigFile, 511);\r
 522                 if (config_slot != 0)\r
 523                 {\r
 524                         char *p = strrchr(cfg, '.');\r
 525                         if (p == NULL) p = cfg + strlen(cfg);\r
 526                         sprintf(extbuf, ".%i.pbcfg", config_slot);\r
 527                         strncpy(p, extbuf, 511 - (p - cfg));\r
 528                 }\r
 529                 cfg[511] = 0;\r
 530         } else {\r
 531                 if (config_slot != 0)\r
 532                      sprintf(extbuf, ".%i.pbcfg", config_slot);\r
 533                 else strcpy(extbuf, ".pbcfg");\r
 534                 romfname_ext(cfg, "cfg/", extbuf);\r
 535                 f = fopen(cfg, "rb");\r
 536                 if (!f) romfname_ext(cfg, NULL, ".pbcfg");\r
 537                 else fclose(f);\r
 538         }\r
 539 \r
 540         printf("emu_ReadConfig: %s ", cfg);\r
 541         f = fopen(cfg, "rb");\r
 542         if (f) {\r
 543                 bread = fread(&currentConfig, 1, sizeof(currentConfig), f);\r
 544                 fclose(f);\r
 545         }\r
 546         printf(bread > 0 ? "(ok)\n" : "(failed)\n");\r
 547 \r
 548         PicoOpt = currentConfig.PicoOpt;\r
 549         PsndRate = currentConfig.PsndRate;\r
 550         PicoRegionOverride = currentConfig.PicoRegion;\r
 551         PicoAutoRgnOrder = currentConfig.PicoAutoRgnOrder;\r
 552         PicoCDBuffers = currentConfig.PicoCDBuffers;\r
 553         scaling_update();\r
 554         // some sanity checks\r
 555         if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;\r
 556         if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;\r
 557         if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;\r
 558         // if volume keys are unbound, bind them to volume control\r
 559         if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {\r
 560                 currentConfig.KeyBinds[23] = 1<<29; // vol up\r
 561                 currentConfig.KeyBinds[22] = 1<<30; // vol down\r
 562         }\r
 563 \r
 564         if (bread > 0) config_slot_current = config_slot;\r
 565         return (bread > 0); // == sizeof(currentConfig));\r
 566 }\r
 567 \r
 568 \r
 569 int emu_WriteConfig(int game)\r
 570 {\r
 571         FILE *f;\r
 572         char cfg[512], extbuf[16];\r
 573         int bwrite = 0;\r
 574 \r
 575         if (!game)\r
 576         {\r
 577                 strncpy(cfg, PicoConfigFile, 511);\r
 578                 if (config_slot != 0)\r
 579                 {\r
 580                         char *p = strrchr(cfg, '.');\r
 581                         if (p == NULL) p = cfg + strlen(cfg);\r
 582                         sprintf(extbuf, ".%i.pbcfg", config_slot);\r
 583                         strncpy(p, extbuf, 511 - (p - cfg));\r
 584                 }\r
 585                 cfg[511] = 0;\r
 586         } else {\r
 587                 if (config_slot != 0)\r
 588                      sprintf(extbuf, ".%i.pbcfg", config_slot);\r
 589                 else strcpy(extbuf, ".pbcfg");\r
 590                 romfname_ext(cfg, "cfg/", extbuf);\r
 591         }\r
 592 \r
 593         printf("emu_WriteConfig: %s ", cfg);\r
 594         f = fopen(cfg, "wb");\r
 595         if (f) {\r
 596                 currentConfig.PicoOpt = PicoOpt;\r
 597                 currentConfig.PsndRate = PsndRate;\r
 598                 currentConfig.PicoRegion = PicoRegionOverride;\r
 599                 currentConfig.PicoAutoRgnOrder = PicoAutoRgnOrder;\r
 600                 currentConfig.PicoCDBuffers = PicoCDBuffers;\r
 601                 bwrite = 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         printf((bwrite == sizeof(currentConfig)) ? "(ok)\n" : "(failed)\n");\r
 609 \r
 610         if (bwrite == sizeof(currentConfig)) config_slot_current = config_slot;\r
 611         return (bwrite == sizeof(currentConfig));\r
 612 }\r
 613 \r
 614 \r
 615 void emu_Deinit(void)\r
 616 {\r
 617         // save SRAM\r
 618         if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
 619                 emu_SaveLoadGame(0, 1);\r
 620                 SRam.changed = 0;\r
 621         }\r
 622 \r
 623         if (!(currentConfig.EmuOpt & 0x20)) {\r
 624                 FILE *f = fopen(PicoConfigFile, "r+b");\r
 625                 if (!f) emu_WriteConfig(0);\r
 626                 else {\r
 627                         // if we already have config, reload it, except last ROM\r
 628                         fseek(f, sizeof(currentConfig.lastRomFile), SEEK_SET);\r
 629                         fread(&currentConfig.EmuOpt, 1, sizeof(currentConfig) - sizeof(currentConfig.lastRomFile), f);\r
 630                         fseek(f, 0, SEEK_SET);\r
 631                         fwrite(&currentConfig, 1, sizeof(currentConfig), f);\r
 632                         fflush(f);\r
 633                         fclose(f);\r
 634 #ifndef NO_SYNC\r
 635                         sync();\r
 636 #endif\r
 637                 }\r
 638         }\r
 639 \r
 640         free(PicoDraw2FB);\r
 641 \r
 642         PicoExit();\r
 643 \r
 644         // restore gamma\r
 645         if (gp2x_old_gamma != 100)\r
 646                 set_gamma(100, 0);\r
 647 }\r
 648 \r
 649 static void text_out8_builtin(int x, int y, const char *text)\r
 650 {\r
 651         int i,l,len=strlen(text);\r
 652         unsigned char *screen = (unsigned char *)gp2x_screen + x + y*320;\r
 653 \r
 654         /* always using built-in font */\r
 655         for (i = 0; i < len; i++)\r
 656         {\r
 657                 for (l=0;l<8;l++)\r
 658                 {\r
 659                         unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
 660                         if (fd&0x80) screen[l*320+0]=0xf0;\r
 661                         if (fd&0x40) screen[l*320+1]=0xf0;\r
 662                         if (fd&0x20) screen[l*320+2]=0xf0;\r
 663                         if (fd&0x10) screen[l*320+3]=0xf0;\r
 664                         if (fd&0x08) screen[l*320+4]=0xf0;\r
 665                         if (fd&0x04) screen[l*320+5]=0xf0;\r
 666                         if (fd&0x02) screen[l*320+6]=0xf0;\r
 667                         if (fd&0x01) screen[l*320+7]=0xf0;\r
 668                 }\r
 669                 screen += 8;\r
 670         }\r
 671 }\r
 672 \r
 673 static void text_out16_builtin(int x, int y, const char *text)\r
 674 {\r
 675         int i,l,len=strlen(text);\r
 676         unsigned short *screen = (unsigned short *)gp2x_screen + x + y*320;\r
 677 \r
 678         for (i = 0; i < len; i++)\r
 679         {\r
 680                 for (l=0;l<8;l++)\r
 681                 {\r
 682                         unsigned char fd = fontdata8x8[((text[i])*8)+l];\r
 683                         if(fd&0x80) screen[l*320+0]=0xffff;\r
 684                         if(fd&0x40) screen[l*320+1]=0xffff;\r
 685                         if(fd&0x20) screen[l*320+2]=0xffff;\r
 686                         if(fd&0x10) screen[l*320+3]=0xffff;\r
 687                         if(fd&0x08) screen[l*320+4]=0xffff;\r
 688                         if(fd&0x04) screen[l*320+5]=0xffff;\r
 689                         if(fd&0x02) screen[l*320+6]=0xffff;\r
 690                         if(fd&0x01) screen[l*320+7]=0xffff;\r
 691                 }\r
 692                 screen += 8;\r
 693         }\r
 694 }\r
 695 \r
 696 \r
 697 void osd_text(int x, int y, const char *text)\r
 698 {\r
 699         int len = strlen(text)*8;\r
 700 \r
 701         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 702                 int *p, i, h;\r
 703                 x &= ~3; // align x\r
 704                 len = (len+3) >> 2;\r
 705                 for (h = 0; h < 8; h++) {\r
 706                         p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));\r
 707                         for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
 708                 }\r
 709                 text_out8_builtin(x, y, text);\r
 710         } else {\r
 711                 int *p, i, h;\r
 712                 x &= ~1; // align x\r
 713                 len = (len+1) >> 1;\r
 714                 for (h = 0; h < 8; h++) {\r
 715                         p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));\r
 716                         for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
 717                 }\r
 718                 text_out16_builtin(x, y, text);\r
 719         }\r
 720 }\r
 721 \r
 722 static void cd_leds(void)\r
 723 {\r
 724         // mmu problems?\r
 725 //      static\r
 726         int old_reg;\r
 727 //      if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change\r
 728         old_reg = Pico_mcd->s68k_regs[0];\r
 729 \r
 730         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 731                 // 8-bit modes\r
 732                 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
 733                 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
 734                 *(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =\r
 735                 *(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =\r
 736                 *(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;\r
 737                 *(unsigned int *)((char *)gp2x_screen + 320*2+12) =\r
 738                 *(unsigned int *)((char *)gp2x_screen + 320*3+12) =\r
 739                 *(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;\r
 740         } else {\r
 741                 // 16-bit modes\r
 742                 unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);\r
 743                 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
 744                 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
 745                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
 746                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
 747                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
 748         }\r
 749 }\r
 750 \r
 751 static int EmuScan16(unsigned int num, void *sdata)\r
 752 {\r
 753         if (!(Pico.video.reg[1]&8)) num += 8;\r
 754         DrawLineDest = (unsigned short *) gp2x_screen + 320*(num+1);\r
 755 \r
 756         return 0;\r
 757 }\r
 758 \r
 759 static int EmuScan8(unsigned int num, void *sdata)\r
 760 {\r
 761         if (!(Pico.video.reg[1]&8)) num += 8;\r
 762         DrawLineDest = (unsigned char *)  gp2x_screen + 320*(num+1);\r
 763 \r
 764         return 0;\r
 765 }\r
 766 \r
 767 int localPal[0x100];\r
 768 static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
 769 \r
 770 static void blit(const char *fps, const char *notice)\r
 771 {\r
 772         int emu_opt = currentConfig.EmuOpt;\r
 773 \r
 774         if (PicoOpt&0x10) {\r
 775                 // 8bit fast renderer\r
 776                 if (Pico.m.dirtyPal) {\r
 777                         Pico.m.dirtyPal = 0;\r
 778                         vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 779                         // feed new palette to our device\r
 780                         gp2x_video_setpalette(localPal, 0x40);\r
 781                 }\r
 782                 vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
 783         } else if (!(emu_opt&0x80)) {\r
 784                 // 8bit accurate renderer\r
 785                 if (Pico.m.dirtyPal) {\r
 786                         Pico.m.dirtyPal = 0;\r
 787                         if(Pico.video.reg[0xC]&8) { // shadow/hilight mode\r
 788                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 789                                 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
 790                                 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
 791                                 blockcpy(localPal+0xc0, localPal+0x40, 0x40*4);\r
 792                                 localPal[0xc0] = 0x0000c000;\r
 793                                 localPal[0xd0] = 0x00c00000;\r
 794                                 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
 795                                 localPal[0xf0] = 0x00ffffff;\r
 796                                 gp2x_video_setpalette(localPal, 0x100);\r
 797                         } else if (rendstatus & 0x20) { // mid-frame palette changes\r
 798                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 799                                 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
 800                                 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
 801                                 gp2x_video_setpalette(localPal, 0xc0);\r
 802                         } else {\r
 803                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 804                                 gp2x_video_setpalette(localPal, 0x40);\r
 805                         }\r
 806                 }\r
 807         }\r
 808 \r
 809         if (notice || (emu_opt & 2)) {\r
 810                 int h = 232;\r
 811                 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
 812                 if (notice) osd_text(4, h, notice);\r
 813                 if (emu_opt & 2)\r
 814                         osd_text(osd_fps_x, h, fps);\r
 815         }\r
 816         if ((emu_opt & 0x400) && (PicoMCD & 1))\r
 817                 cd_leds();\r
 818 \r
 819         //gp2x_video_wait_vsync();\r
 820         gp2x_video_flip();\r
 821 \r
 822         if (!(PicoOpt&0x10)) {\r
 823                 if (!(Pico.video.reg[1]&8)) {\r
 824                         if (currentConfig.EmuOpt&0x80) {\r
 825                                 DrawLineDest = (unsigned short *) gp2x_screen + 320*8;\r
 826                         } else {\r
 827                                 DrawLineDest = (unsigned char  *) gp2x_screen + 320*8;\r
 828                         }\r
 829                 } else {\r
 830                         DrawLineDest = gp2x_screen;\r
 831                 }\r
 832         }\r
 833 }\r
 834 \r
 835 \r
 836 // clears whole screen or just the notice area (in all buffers)\r
 837 static void clearArea(int full)\r
 838 {\r
 839         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 840                 // 8-bit renderers\r
 841                 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
 842                 else      gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
 843         } else {\r
 844                 // 16bit accurate renderer\r
 845                 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
 846                 else      gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
 847         }\r
 848 }\r
 849 \r
 850 \r
 851 static void vidResetMode(void)\r
 852 {\r
 853         if (PicoOpt&0x10) {\r
 854                 gp2x_video_changemode(8);\r
 855         } else if (currentConfig.EmuOpt&0x80) {\r
 856                 gp2x_video_changemode(16);\r
 857                 PicoDrawSetColorFormat(1);\r
 858                 PicoScan = EmuScan16;\r
 859                 PicoScan(0, 0);\r
 860         } else {\r
 861                 gp2x_video_changemode(8);\r
 862                 PicoDrawSetColorFormat(2);\r
 863                 PicoScan = EmuScan8;\r
 864                 PicoScan(0, 0);\r
 865         }\r
 866         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 867                 // setup pal for 8-bit modes\r
 868                 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
 869                 localPal[0xd0] = 0x00c00000;\r
 870                 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
 871                 localPal[0xf0] = 0x00ffffff;\r
 872                 gp2x_video_setpalette(localPal, 0x100);\r
 873                 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
 874                 gp2x_video_flip();\r
 875         }\r
 876         Pico.m.dirtyPal = 1;\r
 877         // reset scaling\r
 878         if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
 879              gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
 880         else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
 881 }\r
 882 \r
 883 \r
 884 static void emu_msg_cb(const char *msg)\r
 885 {\r
 886         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 887                 // 8-bit renderers\r
 888                 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
 889                 osd_text(4, 232, msg);\r
 890                 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);\r
 891         } else {\r
 892                 // 16bit accurate renderer\r
 893                 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
 894                 osd_text(4, 232, msg);\r
 895                 gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);\r
 896         }\r
 897         gettimeofday(&noticeMsgTime, 0);\r
 898         noticeMsgTime.tv_sec -= 2;\r
 899 \r
 900         /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
 901         reset_timing = 1;\r
 902 }\r
 903 \r
 904 static void emu_state_cb(const char *str)\r
 905 {\r
 906         clearArea(0);\r
 907         blit("", str);\r
 908 }\r
 909 \r
 910 static void emu_msg_tray_open(void)\r
 911 {\r
 912         strcpy(noticeMsg, "CD tray opened");\r
 913         gettimeofday(&noticeMsgTime, 0);\r
 914 }\r
 915 \r
 916 static void RunEvents(unsigned int which)\r
 917 {\r
 918         if(which & 0x1800) { // save or load (but not both)\r
 919                 int do_it = 1;\r
 920                 if ( emu_check_save_file(state_slot) &&\r
 921                                 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) ||   // load\r
 922                                  (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
 923                         unsigned long keys;\r
 924                         blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
 925                         while( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
 926                                 usleep(50*1024);\r
 927                         if (keys & GP2X_X) do_it = 0;\r
 928                         clearArea(0);\r
 929                 }\r
 930                 if (do_it) {\r
 931                         osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
 932                         PicoStateProgressCB = emu_state_cb;\r
 933                         gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);\r
 934                         emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
 935                         PicoStateProgressCB = NULL;\r
 936                 }\r
 937 \r
 938                 reset_timing = 1;\r
 939         }\r
 940         if(which & 0x0400) { // switch renderer\r
 941                 if      (  PicoOpt&0x10)             { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
 942                 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
 943                 else   currentConfig.EmuOpt &= ~0x80;\r
 944 \r
 945                 vidResetMode();\r
 946 \r
 947                 if (PicoOpt&0x10) {\r
 948                         strcpy(noticeMsg, " 8bit fast renderer");\r
 949                 } else if (currentConfig.EmuOpt&0x80) {\r
 950                         strcpy(noticeMsg, "16bit accurate renderer");\r
 951                 } else {\r
 952                         strcpy(noticeMsg, " 8bit accurate renderer");\r
 953                 }\r
 954 \r
 955                 gettimeofday(&noticeMsgTime, 0);\r
 956         }\r
 957         if(which & 0x0300) {\r
 958                 if(which&0x0200) {\r
 959                         state_slot -= 1;\r
 960                         if(state_slot < 0) state_slot = 9;\r
 961                 } else {\r
 962                         state_slot += 1;\r
 963                         if(state_slot > 9) state_slot = 0;\r
 964                 }\r
 965                 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_check_save_file(state_slot) ? "USED" : "FREE");\r
 966                 gettimeofday(&noticeMsgTime, 0);\r
 967         }\r
 968         if(which & 0x0080) {\r
 969                 engineState = PGS_Menu;\r
 970         }\r
 971 }\r
 972 \r
 973 \r
 974 static void updateMovie(void)\r
 975 {\r
 976         int offs = Pico.m.frame_count*3 + 0x40;\r
 977         if (offs+3 > movie_size) {\r
 978                 free(movie_data);\r
 979                 movie_data = 0;\r
 980                 strcpy(noticeMsg, "END OF MOVIE.");\r
 981                 printf("END OF MOVIE.\n");\r
 982                 gettimeofday(&noticeMsgTime, 0);\r
 983         } else {\r
 984                 // MXYZ SACB RLDU\r
 985                 PicoPad[0] = ~movie_data[offs]   & 0x8f; // ! SCBA RLDU\r
 986                 if(!(movie_data[offs]   & 0x10)) PicoPad[0] |= 0x40; // A\r
 987                 if(!(movie_data[offs]   & 0x20)) PicoPad[0] |= 0x10; // B\r
 988                 if(!(movie_data[offs]   & 0x40)) PicoPad[0] |= 0x20; // A\r
 989                 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU\r
 990                 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A\r
 991                 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B\r
 992                 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A\r
 993                 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX\r
 994                 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X\r
 995                 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z\r
 996                 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX\r
 997                 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X\r
 998                 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z\r
 999         }\r
1000 }\r
1001 \r
1002 \r
1003 static void updateKeys(void)\r
1004 {\r
1005         unsigned long keys, allActions[2] = { 0, 0 }, events;\r
1006         static unsigned long prevEvents = 0;\r
1007         int joy, i;\r
1008 \r
1009         keys = gp2x_joystick_read(0);\r
1010         if (keys & GP2X_SELECT) {\r
1011                 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
1012                 // wait until select is released, so menu would not resume game\r
1013                 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
1014         }\r
1015 \r
1016         keys &= CONFIGURABLE_KEYS;\r
1017 \r
1018         for (i = 0; i < 32; i++)\r
1019         {\r
1020                 if (keys & (1 << i)) {\r
1021                         int pl, acts = currentConfig.KeyBinds[i];\r
1022                         if (!acts) continue;\r
1023                         pl = (acts >> 16) & 1;\r
1024                         if (combo_keys & (1 << i)) {\r
1025                                 int u = i+1, acts_c = acts & combo_acts;\r
1026                                 // let's try to find the other one\r
1027                                 if (acts_c)\r
1028                                         for (; u < 32; u++)\r
1029                                                 if ( (currentConfig.KeyBinds[u] & acts_c) && (keys & (1 << u)) ) {\r
1030                                                         allActions[pl] |= acts_c;\r
1031                                                         keys &= ~((1 << i) | (1 << u));\r
1032                                                         break;\r
1033                                                 }\r
1034                                 // add non-combo actions if combo ones were not found\r
1035                                 if (!acts_c || u == 32)\r
1036                                         allActions[pl] |= acts & ~combo_acts;\r
1037                         } else {\r
1038                                 allActions[pl] |= acts;\r
1039                         }\r
1040                 }\r
1041         }\r
1042 \r
1043         // add joy inputs\r
1044         if (num_of_joys > 0)\r
1045         {\r
1046                 gp2x_usbjoy_update();\r
1047                 for (joy = 0; joy < num_of_joys; joy++) {\r
1048                         int keys = gp2x_usbjoy_check2(joy);\r
1049                         for (i = 0; i < 32; i++) {\r
1050                                 if (keys & (1 << i)) {\r
1051                                         int acts = currentConfig.JoyBinds[joy][i];\r
1052                                         int pl = (acts >> 16) & 1;\r
1053                                         allActions[pl] |= acts;\r
1054                                 }\r
1055                         }\r
1056                 }\r
1057         }\r
1058 \r
1059         PicoPad[0] = (unsigned short) allActions[0];\r
1060         PicoPad[1] = (unsigned short) allActions[1];\r
1061 \r
1062         events = (allActions[0] | allActions[1]) >> 16;\r
1063 \r
1064         // volume is treated in special way and triggered every frame\r
1065         if(events & 0x6000) {\r
1066                 int vol = currentConfig.volume;\r
1067                 if (events & 0x2000) {\r
1068                         if (vol < 99) vol++;\r
1069                 } else {\r
1070                         if (vol >  0) vol--;\r
1071                 }\r
1072                 gp2x_sound_volume(vol, vol);\r
1073                 sprintf(noticeMsg, "VOL: %02i", vol);\r
1074                 gettimeofday(&noticeMsgTime, 0);\r
1075                 currentConfig.volume = vol;\r
1076         }\r
1077 \r
1078         events &= ~prevEvents;\r
1079         if (events) RunEvents(events);\r
1080         if (movie_data) updateMovie();\r
1081 \r
1082         prevEvents = (allActions[0] | allActions[1]) >> 16;\r
1083 }\r
1084 \r
1085 \r
1086 static void updateSound(int len)\r
1087 {\r
1088         if (PicoOpt&8) len<<=1;\r
1089 \r
1090         /* avoid writing audio when lagging behind to prevent audio lag */\r
1091         if (PicoSkipFrame != 2)\r
1092                 gp2x_sound_write(PsndOut, len<<1);\r
1093 }\r
1094 \r
1095 \r
1096 static void SkipFrame(int do_audio)\r
1097 {\r
1098         PicoSkipFrame=do_audio ? 1 : 2;\r
1099         PicoFrame();\r
1100         PicoSkipFrame=0;\r
1101 }\r
1102 \r
1103 \r
1104 void emu_forced_frame(void)\r
1105 {\r
1106         int po_old = PicoOpt;\r
1107         int eo_old = currentConfig.EmuOpt;\r
1108 \r
1109         PicoOpt &= ~0x0010;\r
1110         PicoOpt |=  0x4080; // soft_scale | acc_sprites\r
1111         currentConfig.EmuOpt |= 0x80;\r
1112 \r
1113         //vidResetMode();\r
1114         PicoDrawSetColorFormat(1);\r
1115         PicoScan = EmuScan16;\r
1116         PicoScan(0, 0);\r
1117         Pico.m.dirtyPal = 1;\r
1118         PicoFrameDrawOnly();\r
1119 \r
1120 /*\r
1121         if (!(Pico.video.reg[12]&1)) {\r
1122                 vidCpyM2 = vidCpyM2_32col;\r
1123                 clearArea(1);\r
1124         } else  vidCpyM2 = vidCpyM2_40col;\r
1125 \r
1126         vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);\r
1127         vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
1128         gp2x_video_setpalette(localPal, 0x40);\r
1129 */\r
1130         PicoOpt = po_old;\r
1131         currentConfig.EmuOpt = eo_old;\r
1132 }\r
1133 \r
1134 static void simpleWait(int thissec, int lim_time)\r
1135 {\r
1136         struct timeval tval;\r
1137 \r
1138         spend_cycles(1024);\r
1139         gettimeofday(&tval, 0);\r
1140         if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1141 \r
1142         while(tval.tv_usec < lim_time)\r
1143         {\r
1144                 spend_cycles(1024);\r
1145                 gettimeofday(&tval, 0);\r
1146                 if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1147         }\r
1148 }\r
1149 \r
1150 \r
1151 void emu_Loop(void)\r
1152 {\r
1153         static int gp2x_old_clock = 200;\r
1154         static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
1155         char fpsbuff[24]; // fps count c string\r
1156         struct timeval tval; // timing\r
1157         int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
1158         int target_fps, target_frametime, lim_time, vsync_offset, i;\r
1159         char *notice = 0;\r
1160 \r
1161         printf("entered emu_Loop()\n");\r
1162 \r
1163         if (gp2x_old_clock != currentConfig.CPUclock) {\r
1164                 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
1165                 set_FCLK(currentConfig.CPUclock);\r
1166                 gp2x_old_clock = currentConfig.CPUclock;\r
1167                 printf(" done\n");\r
1168         }\r
1169 \r
1170         if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
1171                 set_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
1172                 gp2x_old_gamma = currentConfig.gamma;\r
1173                 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
1174         }\r
1175 \r
1176         if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
1177                 if (currentConfig.EmuOpt&0x2000)\r
1178                      set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
1179                 else unset_LCD_custom_rate();\r
1180         }\r
1181 \r
1182         EmuOpt_old = currentConfig.EmuOpt;\r
1183         fpsbuff[0] = 0;\r
1184 \r
1185         // make sure we are in correct mode\r
1186         vidResetMode();\r
1187         Pico.m.dirtyPal = 1;\r
1188         oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
1189         find_combos();\r
1190 \r
1191         // pal/ntsc might have changed, reset related stuff\r
1192         target_fps = Pico.m.pal ? 50 : 60;\r
1193         target_frametime = 1000000/target_fps;\r
1194         reset_timing = 1;\r
1195 \r
1196         // prepare sound stuff\r
1197         if(currentConfig.EmuOpt & 4) {\r
1198                 int snd_excess_add;\r
1199                 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
1200                                 ((PicoOpt&0x200) && crashed_940)) {\r
1201                         /* if 940 is turned off, we need it to be put back to sleep */\r
1202                         if (!(PicoOpt&0x200) && ((PicoOpt^PicoOpt_old)&0x200)) {\r
1203                                 Reset940(1, 2);\r
1204                                 Pause940(1);\r
1205                         }\r
1206                         sound_rerate(Pico.m.frame_count ? 1 : 0);\r
1207                 }\r
1208                 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
1209                 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
1210                         PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
1211                 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
1212                 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
1213                 PicoWriteSound = updateSound;\r
1214                 memset(sndBuffer, 0, sizeof(sndBuffer));\r
1215                 PsndOut = sndBuffer;\r
1216                 PsndRate_old = PsndRate;\r
1217                 PsndLen_real = PsndLen;\r
1218                 PicoOpt_old  = PicoOpt;\r
1219                 pal_old = Pico.m.pal;\r
1220         } else {\r
1221                 PsndOut = 0;\r
1222         }\r
1223 \r
1224         // prepare CD buffer\r
1225         if (PicoMCD & 1) PicoCDBufferInit();\r
1226 \r
1227         // calc vsync offset to sync timing code with vsync\r
1228         if (currentConfig.EmuOpt&0x2000) {\r
1229                 gettimeofday(&tval, 0);\r
1230                 gp2x_video_wait_vsync();\r
1231                 gettimeofday(&tval, 0);\r
1232                 vsync_offset = tval.tv_usec;\r
1233                 while (vsync_offset >= target_frametime)\r
1234                         vsync_offset -= target_frametime;\r
1235                 if (!vsync_offset) vsync_offset++;\r
1236                 printf("vsync_offset: %i\n", vsync_offset);\r
1237         } else\r
1238                 vsync_offset = 0;\r
1239 \r
1240         // loop?\r
1241         while (engineState == PGS_Running)\r
1242         {\r
1243                 int modes;\r
1244 \r
1245                 gettimeofday(&tval, 0);\r
1246                 if(reset_timing) {\r
1247                         reset_timing = 0;\r
1248                         thissec = tval.tv_sec;\r
1249                         frames_shown = frames_done = tval.tv_usec/target_frametime;\r
1250                 }\r
1251 \r
1252                 // show notice message?\r
1253                 if(noticeMsgTime.tv_sec) {\r
1254                         static int noticeMsgSum;\r
1255                         if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
1256                                 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
1257                                 clearArea(0);\r
1258                                 notice = 0;\r
1259                         } else {\r
1260                                 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
1261                                 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
1262                                 notice = noticeMsg;\r
1263                         }\r
1264                 }\r
1265 \r
1266                 // check for mode changes\r
1267                 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
1268                 if (modes != oldmodes) {\r
1269                         int scalex = 320;\r
1270                         osd_fps_x = OSD_FPS_X;\r
1271                         if (modes & 4) {\r
1272                                 vidCpyM2 = vidCpyM2_40col;\r
1273                         } else {\r
1274                                 if (PicoOpt & 0x100) {\r
1275                                         vidCpyM2 = vidCpyM2_32col_nobord;\r
1276                                         scalex = 256;\r
1277                                         osd_fps_x = OSD_FPS_X - 64;\r
1278                                 } else {\r
1279                                         vidCpyM2 = vidCpyM2_32col;\r
1280                                 }\r
1281                         }\r
1282                         if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
1283                              gp2x_video_RGB_setscaling(8, scalex, 224);\r
1284                         else gp2x_video_RGB_setscaling(0, scalex, 240);\r
1285                         oldmodes = modes;\r
1286                         clearArea(1);\r
1287                 }\r
1288 \r
1289                 // second changed?\r
1290                 if(thissec != tval.tv_sec) {\r
1291 #ifdef BENCHMARK\r
1292                         static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
1293                         if(++bench == 10) {\r
1294                                 bench = 0;\r
1295                                 bench_fps_s = bench_fps;\r
1296                                 bf[bfp++ & 3] = bench_fps;\r
1297                                 bench_fps = 0;\r
1298                         }\r
1299                         bench_fps += frames_shown;\r
1300                         sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
1301 #else\r
1302                         if(currentConfig.EmuOpt & 2)\r
1303                                 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
1304 #endif\r
1305                         thissec = tval.tv_sec;\r
1306 \r
1307                         if(PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
1308                                 frames_done = frames_shown = 0;\r
1309                         } else {\r
1310                                 // it is quite common for this implementation to leave 1 fame unfinished\r
1311                                 // when second changes, but we don't want buffer to starve.\r
1312                                 if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {\r
1313                                         updateKeys();\r
1314                                         SkipFrame(1); frames_done++;\r
1315                                 }\r
1316 \r
1317                                 frames_done  -= target_fps; if (frames_done  < 0) frames_done  = 0;\r
1318                                 frames_shown -= target_fps; if (frames_shown < 0) frames_shown = 0;\r
1319                                 if (frames_shown > frames_done) frames_shown = frames_done;\r
1320                         }\r
1321                 }\r
1322 #ifdef PFRAMES\r
1323                 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
1324 #endif\r
1325 \r
1326                 lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
1327                 if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
1328                         for(i = 0; i < currentConfig.Frameskip; i++) {\r
1329                                 updateKeys();\r
1330                                 SkipFrame(1); frames_done++;\r
1331                                 if (PsndOut) { // do framelimitting if sound is enabled\r
1332                                         gettimeofday(&tval, 0);\r
1333                                         if(thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1334                                         if(tval.tv_usec < lim_time) { // we are too fast\r
1335                                                 simpleWait(thissec, lim_time);\r
1336                                         }\r
1337                                 }\r
1338                                 lim_time += target_frametime;\r
1339                         }\r
1340                 } else if(tval.tv_usec > lim_time) { // auto frameskip\r
1341                         // no time left for this frame - skip\r
1342                         if (tval.tv_usec - lim_time >= 0x300000) {\r
1343                                 /* something caused a slowdown for us (disk access? cache flush?)\r
1344                                  * try to recover by resetting timing... */\r
1345                                 reset_timing = 1;\r
1346                                 continue;\r
1347                         }\r
1348                         updateKeys();\r
1349                         SkipFrame(tval.tv_usec < lim_time+target_frametime*2); frames_done++;\r
1350                         continue;\r
1351                 }\r
1352 \r
1353                 updateKeys();\r
1354                 PicoFrame();\r
1355 \r
1356 #if 0\r
1357 if (Pico.m.frame_count == 31563) {\r
1358         FILE *f;\r
1359         f = fopen("ram_p.bin", "wb");\r
1360         if (!f) { printf("!f\n"); exit(1); }\r
1361         fwrite(Pico.ram, 1, 0x10000, f);\r
1362         fclose(f);\r
1363         exit(0);\r
1364 }\r
1365 #endif\r
1366 #if 0\r
1367                 // debug\r
1368                 {\r
1369                         #define BYTE unsigned char\r
1370                         #define WORD unsigned short\r
1371                         struct\r
1372                         {\r
1373                                 BYTE IDLength;        /* 00h  Size of Image ID field */\r
1374                                 BYTE ColorMapType;    /* 01h  Color map type */\r
1375                                 BYTE ImageType;       /* 02h  Image type code */\r
1376                                 WORD CMapStart;       /* 03h  Color map origin */\r
1377                                 WORD CMapLength;      /* 05h  Color map length */\r
1378                                 BYTE CMapDepth;       /* 07h  Depth of color map entries */\r
1379                                 WORD XOffset;         /* 08h  X origin of image */\r
1380                                 WORD YOffset;         /* 0Ah  Y origin of image */\r
1381                                 WORD Width;           /* 0Ch  Width of image */\r
1382                                 WORD Height;          /* 0Eh  Height of image */\r
1383                                 BYTE PixelDepth;      /* 10h  Image pixel size */\r
1384                                 BYTE ImageDescriptor; /* 11h  Image descriptor byte */\r
1385                         } __attribute__((packed)) TGAHEAD;\r
1386                         static unsigned short oldscr[320*240];\r
1387                         FILE *f; char name[128]; int i;\r
1388 \r
1389                         memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
1390                         TGAHEAD.ImageType = 2;\r
1391                         TGAHEAD.Width = 320;\r
1392                         TGAHEAD.Height = 240;\r
1393                         TGAHEAD.PixelDepth = 16;\r
1394                         TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
1395 \r
1396                         #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
1397 \r
1398                         for (i = 0; i < 320*240; i++)\r
1399                                 if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;\r
1400                         if (i < 320*240)\r
1401                         {\r
1402                                 for (i = 0; i < 320*240; i++)\r
1403                                         oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);\r
1404                                 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
1405                                 f = fopen(name, "wb");\r
1406                                 if (!f) { printf("!f\n"); exit(1); }\r
1407                                 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
1408                                 fwrite(oldscr, 1, 320*240*2, f);\r
1409                                 fclose(f);\r
1410                         }\r
1411                 }\r
1412 #endif\r
1413 \r
1414                 // check time\r
1415                 gettimeofday(&tval, 0);\r
1416                 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
1417 \r
1418                 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 0x300000) // slowdown detection\r
1419                         reset_timing = 1;\r
1420                 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
1421                 {\r
1422                         // sleep or vsync if we are still too fast\r
1423                         // usleep sleeps for ~20ms minimum, so it is not a solution here\r
1424                         if(tval.tv_usec < lim_time)\r
1425                         {\r
1426                                 // we are too fast\r
1427                                 if (vsync_offset) {\r
1428                                         if (lim_time - tval.tv_usec > target_frametime/2)\r
1429                                                 simpleWait(thissec, lim_time - target_frametime/4);\r
1430                                         gp2x_video_wait_vsync();\r
1431                                 } else {\r
1432                                         simpleWait(thissec, lim_time);\r
1433                                 }\r
1434                         }\r
1435                 }\r
1436 \r
1437                 blit(fpsbuff, notice);\r
1438 \r
1439                 frames_done++; frames_shown++;\r
1440         }\r
1441 \r
1442 \r
1443         if (PicoMCD & 1) PicoCDBufferFree();\r
1444 \r
1445         // save SRAM\r
1446         if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
1447                 emu_state_cb("Writing SRAM/BRAM..");\r
1448                 emu_SaveLoadGame(0, 1);\r
1449                 SRam.changed = 0;\r
1450         }\r
1451 \r
1452         // if in 8bit mode, generate 16bit image for menu background\r
1453         if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
1454                 emu_forced_frame();\r
1455 }\r
1456 \r
1457 \r
1458 void emu_ResetGame(void)\r
1459 {\r
1460         PicoReset(0);\r
1461         reset_timing = 1;\r
1462 }\r
1463 \r
1464 \r
1465 size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
1466 {\r
1467         return gzread(file, p, _n);\r
1468 }\r
1469 \r
1470 \r
1471 size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
1472 {\r
1473         return gzwrite(file, p, _n);\r
1474 }\r
1475 \r
1476 static int try_ropen_file(const char *fname)\r
1477 {\r
1478         FILE *f;\r
1479 \r
1480         f = fopen(fname, "rb");\r
1481         if (f) {\r
1482                 fclose(f);\r
1483                 return 1;\r
1484         }\r
1485         return 0;\r
1486 }\r
1487 \r
1488 char *emu_GetSaveFName(int load, int is_sram, int slot)\r
1489 {\r
1490         static char saveFname[512];\r
1491         char ext[16];\r
1492 \r
1493         if (is_sram)\r
1494         {\r
1495                 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");\r
1496                 if (load) {\r
1497                         if (try_ropen_file(saveFname)) return saveFname;\r
1498                         // try in current dir..\r
1499                         romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");\r
1500                         if (try_ropen_file(saveFname)) return saveFname;\r
1501                         return NULL; // give up\r
1502                 }\r
1503         }\r
1504         else\r
1505         {\r
1506                 ext[0] = 0;\r
1507                 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1508                 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");\r
1509 \r
1510                 romfname_ext(saveFname, "mds/", ext);\r
1511                 if (load) {\r
1512                         if (try_ropen_file(saveFname)) return saveFname;\r
1513                         romfname_ext(saveFname, NULL, ext);\r
1514                         if (try_ropen_file(saveFname)) return saveFname;\r
1515                         if (currentConfig.EmuOpt & 8) {\r
1516                                 ext[0] = 0;\r
1517                                 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);\r
1518                                 strcat(ext, ".mds");\r
1519 \r
1520                                 romfname_ext(saveFname, "mds/", ext);\r
1521                                 if (try_ropen_file(saveFname)) return saveFname;\r
1522                                 romfname_ext(saveFname, NULL, ext);\r
1523                                 if (try_ropen_file(saveFname)) return saveFname;\r
1524                         }\r
1525                         return NULL;\r
1526                 }\r
1527         }\r
1528 \r
1529         return saveFname;\r
1530 }\r
1531 \r
1532 int emu_check_save_file(int slot)\r
1533 {\r
1534         return emu_GetSaveFName(1, 0, slot) ? 1 : 0;\r
1535 }\r
1536 \r
1537 void emu_set_save_cbs(int gz)\r
1538 {\r
1539         if (gz) {\r
1540                 areaRead  = gzRead2;\r
1541                 areaWrite = gzWrite2;\r
1542                 areaEof   = (areaeof *) gzeof;\r
1543                 areaSeek  = (areaseek *) gzseek;\r
1544                 areaClose = (areaclose *) gzclose;\r
1545         } else {\r
1546                 areaRead  = (arearw *) fread;\r
1547                 areaWrite = (arearw *) fwrite;\r
1548                 areaEof   = (areaeof *) feof;\r
1549                 areaSeek  = (areaseek *) fseek;\r
1550                 areaClose = (areaclose *) fclose;\r
1551         }\r
1552 }\r
1553 \r
1554 int emu_SaveLoadGame(int load, int sram)\r
1555 {\r
1556         int ret = 0;\r
1557         char *saveFname;\r
1558 \r
1559         // make save filename\r
1560         saveFname = emu_GetSaveFName(load, sram, state_slot);\r
1561         if (saveFname == NULL) {\r
1562                 if (!sram) {\r
1563                         strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED  ");\r
1564                         gettimeofday(&noticeMsgTime, 0);\r
1565                 }\r
1566                 return -1;\r
1567         }\r
1568 \r
1569         printf("saveLoad (%i, %i): %s\n", load, sram, saveFname);\r
1570 \r
1571         if(sram) {\r
1572                 FILE *sramFile;\r
1573                 int sram_size;\r
1574                 unsigned char *sram_data;\r
1575                 int truncate = 1;\r
1576                 if (PicoMCD&1) {\r
1577                         if (PicoOpt&0x8000) { // MCD RAM cart?\r
1578                                 sram_size = 0x12000;\r
1579                                 sram_data = SRam.data;\r
1580                                 if (sram_data)\r
1581                                         memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);\r
1582                         } else {\r
1583                                 sram_size = 0x2000;\r
1584                                 sram_data = Pico_mcd->bram;\r
1585                                 truncate  = 0; // the .brm may contain RAM cart data after normal brm\r
1586                         }\r
1587                 } else {\r
1588                         sram_size = SRam.end-SRam.start+1;\r
1589                         if(Pico.m.sram_reg & 4) sram_size=0x2000;\r
1590                         sram_data = SRam.data;\r
1591                 }\r
1592                 if (!sram_data) return 0; // SRam forcefully disabled for this game\r
1593 \r
1594                 if (load) {\r
1595                         sramFile = fopen(saveFname, "rb");\r
1596                         if(!sramFile) return -1;\r
1597                         fread(sram_data, 1, sram_size, sramFile);\r
1598                         fclose(sramFile);\r
1599                         if ((PicoMCD&1) && (PicoOpt&0x8000))\r
1600                                 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);\r
1601                 } else {\r
1602                         // sram save needs some special processing\r
1603                         // see if we have anything to save\r
1604                         for (; sram_size > 0; sram_size--)\r
1605                                 if (sram_data[sram_size-1]) break;\r
1606 \r
1607                         if (sram_size) {\r
1608                                 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");\r
1609                                 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry\r
1610                                 if (!sramFile) return -1;\r
1611                                 ret = fwrite(sram_data, 1, sram_size, sramFile);\r
1612                                 ret = (ret != sram_size) ? -1 : 0;\r
1613                                 fclose(sramFile);\r
1614 #ifndef NO_SYNC\r
1615                                 sync();\r
1616 #endif\r
1617                         }\r
1618                 }\r
1619                 return ret;\r
1620         }\r
1621         else\r
1622         {\r
1623                 void *PmovFile = NULL;\r
1624                 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0) {\r
1625                         if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {\r
1626                                 emu_set_save_cbs(1);\r
1627                                 if(!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);\r
1628                         }\r
1629                 }\r
1630                 else\r
1631                 {\r
1632                         if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {\r
1633                                 emu_set_save_cbs(0);\r
1634                         }\r
1635                 }\r
1636                 if(PmovFile) {\r
1637                         ret = PmovState(load ? 6 : 5, PmovFile);\r
1638                         areaClose(PmovFile);\r
1639                         PmovFile = 0;\r
1640                         if (load) Pico.m.dirtyPal=1;\r
1641 #ifndef NO_SYNC\r
1642                         else sync();\r
1643 #endif\r
1644                 }\r
1645                 else    ret = -1;\r
1646                 if (!ret)\r
1647                         strcpy(noticeMsg, load ? "GAME LOADED  " : "GAME SAVED   ");\r
1648                 else\r
1649                 {\r
1650                         strcpy(noticeMsg, load ? "LOAD FAILED  " : "SAVE FAILED  ");\r
1651                         ret = -1;\r
1652                 }\r
1653 \r
1654                 gettimeofday(&noticeMsgTime, 0);\r
1655                 return ret;\r
1656         }\r
1657 }\r