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