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