pandora/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 "../gp2x/emu.h"\r
  18 #include "../gp2x/usbjoy.h"\r
  19 #include "../gp2x/menu.h"\r
  20 #include "../common/arm_utils.h"\r
  21 #include "../common/fonts.h"\r
  22 #include "../common/emu.h"\r
  23 #include "../common/config.h"\r
  24 #include "../common/common.h"\r
  25 \r
  26 #include <Pico/PicoInt.h>\r
  27 #include <Pico/Patch.h>\r
  28 #include <Pico/sound/mix.h>\r
  29 #include <zlib/zlib.h>\r
  30 \r
  31 //#define PFRAMES\r
  32 \r
  33 #ifdef BENCHMARK\r
  34 #define OSD_FPS_X (800-200)\r
  35 #else\r
  36 #define OSD_FPS_X (800-120)\r
  37 #endif\r
  38 \r
  39 \r
  40 int engineState;\r
  41 int select_exits = 0;\r
  42 \r
  43 char romFileName[PATH_MAX];\r
  44 \r
  45 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
  46 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
  47 static int osd_fps_x;\r
  48 char noticeMsg[64];                     // notice msg to draw\r
  49 unsigned char *PicoDraw2FB = NULL;  // temporary buffer for alt renderer\r
  50 int reset_timing = 0;\r
  51 \r
  52 #define PICO_PEN_ADJUST_X 4\r
  53 #define PICO_PEN_ADJUST_Y 2\r
  54 static int pico_pen_x = SCREEN_WIDTH/2, pico_pen_y = 240/2;\r
  55 \r
  56 static void emu_msg_cb(const char *msg);\r
  57 static void emu_msg_tray_open(void);\r
  58 \r
  59 \r
  60 void emu_noticeMsgUpdated(void)\r
  61 {\r
  62         gettimeofday(&noticeMsgTime, 0);\r
  63 }\r
  64 \r
  65 void emu_getMainDir(char *dst, int len)\r
  66 {\r
  67         extern char **g_argv;\r
  68         int j;\r
  69 \r
  70         strncpy(dst, g_argv[0], len);\r
  71         len -= 32; // reserve\r
  72         if (len < 0) len = 0;\r
  73         dst[len] = 0;\r
  74         for (j = strlen(dst); j > 0; j--)\r
  75                 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
  76 }\r
  77 \r
  78 void emu_Init(void)\r
  79 {\r
  80         // make temp buffer for alt renderer\r
  81         PicoDraw2FB = malloc((8+320)*(8+240+8));\r
  82         if (!PicoDraw2FB)\r
  83         {\r
  84                 printf("PicoDraw2FB == 0\n");\r
  85         }\r
  86 \r
  87         // make dirs for saves, cfgs, etc.\r
  88         mkdir("mds", 0777);\r
  89         mkdir("srm", 0777);\r
  90         mkdir("brm", 0777);\r
  91         mkdir("cfg", 0777);\r
  92 \r
  93         PicoInit();\r
  94         PicoMessage = emu_msg_cb;\r
  95         PicoMCDopenTray = emu_msg_tray_open;\r
  96         PicoMCDcloseTray = menu_loop_tray;\r
  97 }\r
  98 \r
  99 \r
 100 static void scaling_update(void)\r
 101 {\r
 102         PicoOpt &= ~0x4100;\r
 103         switch (currentConfig.scaling) {\r
 104                 default: break; // off\r
 105                 case 1:  // hw hor\r
 106                 case 2:  PicoOpt |=  0x0100; break; // hw hor+vert\r
 107                 case 3:  PicoOpt |=  0x4000; break; // sw hor\r
 108         }\r
 109 }\r
 110 \r
 111 \r
 112 void emu_Deinit(void)\r
 113 {\r
 114         // save SRAM\r
 115         if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
 116                 emu_SaveLoadGame(0, 1);\r
 117                 SRam.changed = 0;\r
 118         }\r
 119 \r
 120         if (!(currentConfig.EmuOpt & 0x20)) {\r
 121                 config_writelrom(PicoConfigFile);\r
 122 #ifndef NO_SYNC\r
 123                 sync();\r
 124 #endif\r
 125         }\r
 126 \r
 127         free(PicoDraw2FB);\r
 128 \r
 129         PicoExit();\r
 130 }\r
 131 \r
 132 void emu_prepareDefaultConfig(void)\r
 133 {\r
 134         memset(&defaultConfig, 0, sizeof(defaultConfig));\r
 135         defaultConfig.EmuOpt    = 0x9f | 0x00700; // | <- ram_tmng, confirm_save, cd_leds\r
 136         defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES|POPT_EN_MCD_GFX;\r
 137         defaultConfig.s_PsndRate = 44100;\r
 138         defaultConfig.s_PicoRegion = 0; // auto\r
 139         defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
 140         defaultConfig.s_PicoCDBuffers = 0;\r
 141         defaultConfig.Frameskip = 0; // auto\r
 142         defaultConfig.CPUclock = 200;\r
 143         defaultConfig.volume = 50;\r
 144         defaultConfig.scaling = 0;\r
 145         defaultConfig.turbo_rate = 15;\r
 146 }\r
 147 \r
 148 void emu_setDefaultConfig(void)\r
 149 {\r
 150         memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));\r
 151         PicoOpt = currentConfig.s_PicoOpt;\r
 152         PsndRate = currentConfig.s_PsndRate;\r
 153         PicoRegionOverride = currentConfig.s_PicoRegion;\r
 154         PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;\r
 155         PicoCDBuffers = currentConfig.s_PicoCDBuffers;\r
 156 }\r
 157 \r
 158 static void textOut16(int x, int y, const char *text)\r
 159 {\r
 160         int i,l,len=strlen(text);\r
 161         unsigned int *screen = (unsigned int *)((unsigned short *)SCREEN_BUFFER + (x&~1) + y*SCREEN_WIDTH);\r
 162 \r
 163         for (i = 0; i < len; i++)\r
 164         {\r
 165                 for (l=0;l<16;l+=2)\r
 166                 {\r
 167                         unsigned char fd = fontdata8x8[((text[i])*8)+l/2];\r
 168                         int u = l+1;\r
 169                         if(fd&0x80) screen[l*SCREEN_WIDTH/2+0]=screen[u*SCREEN_WIDTH/2+0]=0xffffffff;\r
 170                         if(fd&0x40) screen[l*SCREEN_WIDTH/2+1]=screen[u*SCREEN_WIDTH/2+1]=0xffffffff;\r
 171                         if(fd&0x20) screen[l*SCREEN_WIDTH/2+2]=screen[u*SCREEN_WIDTH/2+2]=0xffffffff;\r
 172                         if(fd&0x10) screen[l*SCREEN_WIDTH/2+3]=screen[u*SCREEN_WIDTH/2+3]=0xffffffff;\r
 173                         if(fd&0x08) screen[l*SCREEN_WIDTH/2+4]=screen[u*SCREEN_WIDTH/2+4]=0xffffffff;\r
 174                         if(fd&0x04) screen[l*SCREEN_WIDTH/2+5]=screen[u*SCREEN_WIDTH/2+5]=0xffffffff;\r
 175                         if(fd&0x02) screen[l*SCREEN_WIDTH/2+6]=screen[u*SCREEN_WIDTH/2+6]=0xffffffff;\r
 176                         if(fd&0x01) screen[l*SCREEN_WIDTH/2+7]=screen[u*SCREEN_WIDTH/2+7]=0xffffffff;\r
 177                 }\r
 178                 screen += 8;\r
 179         }\r
 180 }\r
 181 \r
 182 \r
 183 void osd_text(int x, int y, const char *text)\r
 184 {\r
 185         int len = strlen(text)*8;\r
 186 \r
 187         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 188                 int *p, i, h;\r
 189                 x &= ~3; // align x\r
 190                 len = (len+3) >> 2;\r
 191                 for (h = 0; h < 8; h++) {\r
 192                         p = (int *) ((unsigned char *) gp2x_screen+x+SCREEN_WIDTH*(y+h));\r
 193                         for (i = len; i; i--, p++) *p = 0xe0e0e0e0;\r
 194                 }\r
 195                 emu_textOut8(x, y, text);\r
 196         } else {\r
 197                 int *p, i, h;\r
 198                 x &= ~1; // align x\r
 199                 len++;\r
 200                 for (h = 0; h < 16; h++) {\r
 201                         p = (int *) ((unsigned short *) gp2x_screen+x+SCREEN_WIDTH*(y+h));\r
 202                         for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;\r
 203                 }\r
 204                 textOut16(x, y, text);\r
 205         }\r
 206 }\r
 207 \r
 208 static void draw_cd_leds(void)\r
 209 {\r
 210 //      static\r
 211         int old_reg;\r
 212 //      if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
 213         old_reg = Pico_mcd->s68k_regs[0];\r
 214 \r
 215         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 216                 // 8-bit modes\r
 217                 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
 218                 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
 219                 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+ 4) =\r
 220                 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+ 4) =\r
 221                 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+ 4) = col_g;\r
 222                 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+12) =\r
 223                 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+12) =\r
 224                 *(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+12) = col_r;\r
 225         } else {\r
 226                 // 16-bit modes\r
 227                 unsigned int *p = (unsigned int *)((short *)gp2x_screen + SCREEN_WIDTH*2+4);\r
 228                 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
 229                 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
 230                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;\r
 231                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;\r
 232                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
 233         }\r
 234 }\r
 235 \r
 236 static void draw_pico_ptr(void)\r
 237 {\r
 238         unsigned short *p = (unsigned short *)gp2x_screen;\r
 239 \r
 240         // only if pen enabled and for 16bit modes\r
 241         if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
 242 \r
 243         if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
 244                 p += 32;\r
 245 \r
 246         p += SCREEN_WIDTH * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
 247         p += pico_pen_x + PICO_PEN_ADJUST_X;\r
 248         p[0]   ^= 0xffff;\r
 249         p[319] ^= 0xffff;\r
 250         p[320] ^= 0xffff;\r
 251         p[321] ^= 0xffff;\r
 252         p[640] ^= 0xffff;\r
 253 }\r
 254 \r
 255 static int EmuScanEnd16(unsigned int num)\r
 256 {\r
 257         unsigned char  *ps=HighCol+8;\r
 258         unsigned short *pd;\r
 259         unsigned short *pal=HighPal;\r
 260         int sh = Pico.video.reg[0xC]&8;\r
 261         int len, mask = 0xff;\r
 262 \r
 263         if (!(Pico.video.reg[1]&8)) num += 8;\r
 264         pd=(unsigned short *)gp2x_screen + num*800*2 + 800/2 - 320*2/2;\r
 265 \r
 266         if (Pico.m.dirtyPal)\r
 267                 PicoDoHighPal555(sh);\r
 268 \r
 269         if (Pico.video.reg[12]&1) {\r
 270                 len = 320;\r
 271         } else {\r
 272                 pd+=32;\r
 273                 len = 256;\r
 274         }\r
 275 \r
 276         if (!sh && (rendstatus & PDRAW_ACC_SPRITES))\r
 277                 mask=0x3f; // accurate sprites, upper bits are priority stuff\r
 278 \r
 279 \r
 280         for (; len > 0; len--)\r
 281         {\r
 282                 unsigned int p = pal[*ps++ & mask];\r
 283                 p |= p << 16;\r
 284                 *(unsigned int *)pd = p;\r
 285                 *(unsigned int *)(&pd[800]) = p;\r
 286                 pd += 2;\r
 287         }\r
 288 \r
 289         return 0;\r
 290 }\r
 291 \r
 292 static int EmuScanBegin8(unsigned int num)\r
 293 {\r
 294         if (!(Pico.video.reg[1]&8)) num += 8;\r
 295         DrawLineDest = (unsigned char *)  gp2x_screen + SCREEN_WIDTH * num;\r
 296 \r
 297         return 0;\r
 298 }\r
 299 \r
 300 int localPal[0x100];\r
 301 static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
 302 \r
 303 static void blit(const char *fps, const char *notice)\r
 304 {\r
 305         int emu_opt = currentConfig.EmuOpt;\r
 306 \r
 307         if (PicoOpt&0x10)\r
 308         {\r
 309                 // 8bit fast renderer\r
 310                 if (Pico.m.dirtyPal) {\r
 311                         Pico.m.dirtyPal = 0;\r
 312                         vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 313                         // feed new palette to our device\r
 314                         gp2x_video_setpalette(localPal, 0x40);\r
 315                 }\r
 316                 // a hack for VR\r
 317                 if (PicoRead16Hook == PicoSVPRead16)\r
 318                         memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
 319                 // do actual copy\r
 320                 vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);\r
 321         }\r
 322         else if (!(emu_opt&0x80))\r
 323         {\r
 324                 // 8bit accurate renderer\r
 325                 if (Pico.m.dirtyPal)\r
 326                 {\r
 327                         int pallen = 0x40;\r
 328                         Pico.m.dirtyPal = 0;\r
 329                         if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
 330                         {\r
 331                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 332                                 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
 333                                 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
 334                                 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
 335                                 pallen = 0x100;\r
 336                         }\r
 337                         else if (rendstatus & PDRAW_ACC_SPRITES) {\r
 338                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 339                                 memcpy32(localPal+0x40, localPal, 0x40);\r
 340                                 memcpy32(localPal+0x80, localPal, 0x40);\r
 341                                 memcpy32(localPal+0xc0, localPal, 0x40);\r
 342                                 pallen = 0x100;\r
 343                         }\r
 344                         else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
 345                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 346                                 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
 347                                 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
 348                                 pallen = 0xc0;\r
 349                         }\r
 350                         else {\r
 351                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 352                         }\r
 353                         if (pallen > 0xc0) {\r
 354                                 localPal[0xc0] = 0x0000c000;\r
 355                                 localPal[0xd0] = 0x00c00000;\r
 356                                 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
 357                                 localPal[0xf0] = 0x00ffffff;\r
 358                         }\r
 359                         gp2x_video_setpalette(localPal, pallen);\r
 360                 }\r
 361         }\r
 362 \r
 363         if (notice || (emu_opt & 2)) {\r
 364                 int h = SCREEN_HEIGHT-16;\r
 365                 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;\r
 366                 if (notice) osd_text(4, h, notice);\r
 367                 if (emu_opt & 2)\r
 368                         osd_text(osd_fps_x+24*2, h-8, fps);\r
 369         }\r
 370         if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
 371                 draw_cd_leds();\r
 372         if (PicoAHW & PAHW_PICO)\r
 373                 draw_pico_ptr();\r
 374 {\r
 375 //static int u=0;\r
 376 //memset((char *)gp2x_screen+800*471*2, (u++)>>1, 800*9*2);\r
 377 }\r
 378 \r
 379         //gp2x_video_wait_vsync();\r
 380         gp2x_video_flip();\r
 381 }\r
 382 \r
 383 \r
 384 // clears whole screen or just the notice area (in all buffers)\r
 385 static void clearArea(int full)\r
 386 {\r
 387         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 388                 // 8-bit renderers\r
 389                 if (full) gp2x_memset_all_buffers(0, 0xe0, SCREEN_WIDTH*240);\r
 390                 else      gp2x_memset_all_buffers(SCREEN_WIDTH*232, 0xe0, SCREEN_WIDTH*8);\r
 391         } else {\r
 392                 // 16bit accurate renderer\r
 393                 if (full) gp2x_memset_all_buffers(0, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);\r
 394                 else      gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);\r
 395         }\r
 396 }\r
 397 \r
 398 \r
 399 static void vidResetMode(void)\r
 400 {\r
 401         if (PicoOpt&0x10) {\r
 402                 gp2x_video_changemode(8);\r
 403         } else if (currentConfig.EmuOpt&0x80) {\r
 404                 gp2x_video_changemode(16);\r
 405                 PicoDrawSetColorFormat(-1);\r
 406                 PicoScanEnd = EmuScanEnd16;\r
 407         } else {\r
 408                 gp2x_video_changemode(8);\r
 409                 PicoDrawSetColorFormat(2);\r
 410                 PicoScanBegin = EmuScanBegin8;\r
 411         }\r
 412         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 413                 // setup pal for 8-bit modes\r
 414                 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
 415                 localPal[0xd0] = 0x00c00000;\r
 416                 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
 417                 localPal[0xf0] = 0x00ffffff;\r
 418                 gp2x_video_setpalette(localPal, 0x100);\r
 419                 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
 420                 gp2x_video_flip();\r
 421         }\r
 422         Pico.m.dirtyPal = 1;\r
 423         // reset scaling\r
 424         if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
 425              gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
 426         else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
 427 }\r
 428 \r
 429 \r
 430 static void emu_msg_cb(const char *msg)\r
 431 {\r
 432         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 433                 // 8-bit renderers\r
 434                 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16), 0xe0, SCREEN_WIDTH*16);\r
 435                 osd_text(4, SCREEN_HEIGHT-16, msg);\r
 436                 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16),\r
 437                         SCREEN_WIDTH*(SCREEN_HEIGHT-16), SCREEN_WIDTH*16);\r
 438         } else {\r
 439                 // 16bit accurate renderer\r
 440                 gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);\r
 441                 osd_text(4, SCREEN_HEIGHT-16, msg);\r
 442                 gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2,\r
 443                         SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, SCREEN_WIDTH*16*2);\r
 444         }\r
 445         gettimeofday(&noticeMsgTime, 0);\r
 446         noticeMsgTime.tv_sec -= 2;\r
 447 \r
 448         /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
 449         reset_timing = 1;\r
 450 }\r
 451 \r
 452 static void emu_state_cb(const char *str)\r
 453 {\r
 454         clearArea(0);\r
 455         blit("", str);\r
 456 }\r
 457 \r
 458 static void emu_msg_tray_open(void)\r
 459 {\r
 460         strcpy(noticeMsg, "CD tray opened");\r
 461         gettimeofday(&noticeMsgTime, 0);\r
 462 }\r
 463 \r
 464 static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)\r
 465 {\r
 466         int ret, px, py, lim_x;\r
 467         static int pdown_frames = 0;\r
 468 \r
 469         emu_RunEventsPico(events);\r
 470 \r
 471         if (pico_inp_mode == 0) return;\r
 472 \r
 473         // for F200\r
 474         ret = gp2x_touchpad_read(&px, &py);\r
 475         if (ret >= 0)\r
 476         {\r
 477                 if (ret > 35000)\r
 478                 {\r
 479                         if (pdown_frames++ > 5)\r
 480                                 PicoPad[0] |= 0x20;\r
 481 \r
 482                         pico_pen_x = px;\r
 483                         pico_pen_y = py;\r
 484                         if (!(Pico.video.reg[12]&1)) {\r
 485                                 pico_pen_x -= 32;\r
 486                                 if (pico_pen_x <   0) pico_pen_x = 0;\r
 487                                 if (pico_pen_x > 248) pico_pen_x = 248;\r
 488                         }\r
 489                         if (pico_pen_y > 224) pico_pen_y = 224;\r
 490                 }\r
 491                 else\r
 492                         pdown_frames = 0;\r
 493 \r
 494                 //if (ret == 0)\r
 495                 //      PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
 496         }\r
 497 \r
 498         PicoPad[0] &= ~0x0f; // release UDLR\r
 499         if (gp2x_keys & GP2X_UP)    pico_pen_y--;\r
 500         if (gp2x_keys & GP2X_DOWN)  pico_pen_y++;\r
 501         if (gp2x_keys & GP2X_LEFT)  pico_pen_x--;\r
 502         if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;\r
 503 \r
 504         lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
 505         if (pico_pen_y < 8) pico_pen_y = 8;\r
 506         if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
 507         if (pico_pen_x < 0) pico_pen_x = 0;\r
 508         if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
 509 \r
 510         PicoPicohw.pen_pos[0] = pico_pen_x;\r
 511         if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
 512         PicoPicohw.pen_pos[0] += 0x3c;\r
 513         PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
 514 }\r
 515 \r
 516 static void update_volume(int has_changed, int is_up)\r
 517 {\r
 518         static int prev_frame = 0, wait_frames = 0;\r
 519         int vol = currentConfig.volume;\r
 520 \r
 521         if (has_changed)\r
 522         {\r
 523                 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
 524                         wait_frames++;\r
 525                 else {\r
 526                         if (is_up) {\r
 527                                 if (vol < 99) vol++;\r
 528                         } else {\r
 529                                 if (vol >  0) vol--;\r
 530                         }\r
 531                         wait_frames = 0;\r
 532                         gp2x_sound_volume(vol, vol);\r
 533                         currentConfig.volume = vol;\r
 534                 }\r
 535                 sprintf(noticeMsg, "VOL: %02i", vol);\r
 536                 gettimeofday(&noticeMsgTime, 0);\r
 537                 prev_frame = Pico.m.frame_count;\r
 538         }\r
 539 \r
 540         // set the right mixer func\r
 541         if (!(PicoOpt&8)) return; // just use defaults for mono\r
 542         if (vol >= 5)\r
 543                 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
 544         else {\r
 545                 mix_32_to_16l_level = 5 - vol;\r
 546                 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
 547         }\r
 548 }\r
 549 \r
 550 static void RunEvents(unsigned int which)\r
 551 {\r
 552         if (which & 0x1800) // save or load (but not both)\r
 553         {\r
 554                 int do_it = 1;\r
 555                 if ( emu_checkSaveFile(state_slot) &&\r
 556                                 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) ||   // load\r
 557                                  (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save\r
 558                         unsigned long keys;\r
 559                         blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");\r
 560                         while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )\r
 561                                 usleep(50*1024);\r
 562                         if (keys & GP2X_X) do_it = 0;\r
 563                         while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release\r
 564                                 usleep(50*1024);\r
 565                         clearArea(0);\r
 566                 }\r
 567                 if (do_it) {\r
 568                         osd_text(4, SCREEN_HEIGHT-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
 569                         PicoStateProgressCB = emu_state_cb;\r
 570                         gp2x_memcpy_all_buffers(gp2x_screen, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);\r
 571                         emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
 572                         PicoStateProgressCB = NULL;\r
 573                 }\r
 574 \r
 575                 reset_timing = 1;\r
 576         }\r
 577         if (which & 0x0400) // switch renderer\r
 578         {\r
 579                 if      (  PicoOpt&0x10)             { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
 580                 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
 581                 else   currentConfig.EmuOpt &= ~0x80;\r
 582 \r
 583                 vidResetMode();\r
 584 \r
 585                 if (PicoOpt&0x10) {\r
 586                         strcpy(noticeMsg, " 8bit fast renderer");\r
 587                 } else if (currentConfig.EmuOpt&0x80) {\r
 588                         strcpy(noticeMsg, "16bit accurate renderer");\r
 589                 } else {\r
 590                         strcpy(noticeMsg, " 8bit accurate renderer");\r
 591                 }\r
 592 \r
 593                 gettimeofday(&noticeMsgTime, 0);\r
 594         }\r
 595         if (which & 0x0300)\r
 596         {\r
 597                 if(which&0x0200) {\r
 598                         state_slot -= 1;\r
 599                         if(state_slot < 0) state_slot = 9;\r
 600                 } else {\r
 601                         state_slot += 1;\r
 602                         if(state_slot > 9) state_slot = 0;\r
 603                 }\r
 604                 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
 605                 gettimeofday(&noticeMsgTime, 0);\r
 606         }\r
 607         if (which & 0x0080) {\r
 608                 engineState = PGS_Menu;\r
 609         }\r
 610 }\r
 611 \r
 612 static void updateKeys(void)\r
 613 {\r
 614         unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;\r
 615         static unsigned int prevEvents = 0;\r
 616         int joy, i;\r
 617 \r
 618         keys = gp2x_joystick_read(0);\r
 619         if (keys & GP2X_SELECT) {\r
 620                 engineState = select_exits ? PGS_Quit : PGS_Menu;\r
 621                 // wait until select is released, so menu would not resume game\r
 622                 while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);\r
 623         }\r
 624 \r
 625         keys &= CONFIGURABLE_KEYS;\r
 626         keys2 = keys;\r
 627 \r
 628         for (i = 0; i < 32; i++)\r
 629         {\r
 630                 if (keys2 & (1 << i))\r
 631                 {\r
 632                         int pl, acts = currentConfig.KeyBinds[i];\r
 633                         if (!acts) continue;\r
 634                         pl = (acts >> 16) & 1;\r
 635                         if (kb_combo_keys & (1 << i))\r
 636                         {\r
 637                                 int u = i+1, acts_c = acts & kb_combo_acts;\r
 638                                 // let's try to find the other one\r
 639                                 if (acts_c) {\r
 640                                         for (; u < 32; u++)\r
 641                                                 if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {\r
 642                                                         allActions[pl] |= acts_c & currentConfig.KeyBinds[u];\r
 643                                                         keys2 &= ~((1 << i) | (1 << u));\r
 644                                                         break;\r
 645                                                 }\r
 646                                 }\r
 647                                 // add non-combo actions if combo ones were not found\r
 648                                 if (!acts_c || u == 32)\r
 649                                         allActions[pl] |= acts & ~kb_combo_acts;\r
 650                         } else {\r
 651                                 allActions[pl] |= acts;\r
 652                         }\r
 653                 }\r
 654         }\r
 655 \r
 656         // add joy inputs\r
 657         if (num_of_joys > 0)\r
 658         {\r
 659                 gp2x_usbjoy_update();\r
 660                 for (joy = 0; joy < num_of_joys; joy++) {\r
 661                         int btns = gp2x_usbjoy_check2(joy);\r
 662                         for (i = 0; i < 32; i++) {\r
 663                                 if (btns & (1 << i)) {\r
 664                                         int acts = currentConfig.JoyBinds[joy][i];\r
 665                                         int pl = (acts >> 16) & 1;\r
 666                                         allActions[pl] |= acts;\r
 667                                 }\r
 668                         }\r
 669                 }\r
 670         }\r
 671 \r
 672         PicoPad[0] = allActions[0] & 0xfff;\r
 673         PicoPad[1] = allActions[1] & 0xfff;\r
 674 \r
 675         if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
 676         if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
 677 \r
 678         events = (allActions[0] | allActions[1]) >> 16;\r
 679 \r
 680         // volume is treated in special way and triggered every frame\r
 681         if (events & 0x6000)\r
 682                 update_volume(1, events & 0x2000);\r
 683 \r
 684         if ((events ^ prevEvents) & 0x40) {\r
 685                 emu_changeFastForward(events & 0x40);\r
 686                 update_volume(0, 0);\r
 687                 reset_timing = 1;\r
 688         }\r
 689 \r
 690         events &= ~prevEvents;\r
 691 \r
 692         if (PicoAHW == PAHW_PICO)\r
 693                 RunEventsPico(events, keys);\r
 694         if (events) RunEvents(events);\r
 695         if (movie_data) emu_updateMovie();\r
 696 \r
 697         prevEvents = (allActions[0] | allActions[1]) >> 16;\r
 698 }\r
 699 \r
 700 \r
 701 static void updateSound(int len)\r
 702 {\r
 703         if (PicoOpt&8) len<<=1;\r
 704 \r
 705         /* avoid writing audio when lagging behind to prevent audio lag */\r
 706         if (PicoSkipFrame != 2)\r
 707                 gp2x_sound_write(PsndOut, len<<1);\r
 708 }\r
 709 \r
 710 \r
 711 static void SkipFrame(int do_audio)\r
 712 {\r
 713         PicoSkipFrame=do_audio ? 1 : 2;\r
 714         PicoFrame();\r
 715         PicoSkipFrame=0;\r
 716 }\r
 717 \r
 718 \r
 719 void emu_forcedFrame(int opts)\r
 720 {\r
 721         int po_old = PicoOpt;\r
 722         int eo_old = currentConfig.EmuOpt;\r
 723 \r
 724         PicoOpt &= ~0x10;\r
 725         PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
 726         currentConfig.EmuOpt |= 0x80;\r
 727 \r
 728         //vidResetMode();\r
 729         PicoDrawSetColorFormat(-1);\r
 730         PicoScanEnd = EmuScanEnd16;\r
 731         Pico.m.dirtyPal = 1;\r
 732         PicoFrameDrawOnly();\r
 733 \r
 734 /*\r
 735         if (!(Pico.video.reg[12]&1)) {\r
 736                 vidCpyM2 = vidCpyM2_32col;\r
 737                 clearArea(1);\r
 738         } else  vidCpyM2 = vidCpyM2_40col;\r
 739 \r
 740         vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);\r
 741         vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 742         gp2x_video_setpalette(localPal, 0x40);\r
 743 */\r
 744         PicoOpt = po_old;\r
 745         currentConfig.EmuOpt = eo_old;\r
 746 }\r
 747 \r
 748 static void simpleWait(int thissec, int lim_time)\r
 749 {\r
 750         struct timeval tval;\r
 751 \r
 752         spend_cycles(1024);\r
 753         gettimeofday(&tval, 0);\r
 754         if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
 755 \r
 756         while (tval.tv_usec < lim_time)\r
 757         {\r
 758                 spend_cycles(1024);\r
 759                 gettimeofday(&tval, 0);\r
 760                 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
 761         }\r
 762 }\r
 763 \r
 764 \r
 765 void emu_Loop(void)\r
 766 {\r
 767         static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
 768         char fpsbuff[24]; // fps count c string\r
 769         struct timeval tval; // timing\r
 770         int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
 771         int  frames_done,  frames_shown,  thissec; // actual frames\r
 772         int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
 773         char *notice = 0;\r
 774 \r
 775         printf("entered emu_Loop()\n");\r
 776 \r
 777         fpsbuff[0] = 0;\r
 778 \r
 779         // make sure we are in correct mode\r
 780         vidResetMode();\r
 781         scaling_update();\r
 782         Pico.m.dirtyPal = 1;\r
 783         oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
 784         emu_findKeyBindCombos();\r
 785 \r
 786         // pal/ntsc might have changed, reset related stuff\r
 787         target_fps = Pico.m.pal ? 50 : 60;\r
 788         target_frametime = 1000000/target_fps;\r
 789         reset_timing = 1;\r
 790 \r
 791         // prepare sound stuff\r
 792         if (currentConfig.EmuOpt & 4)\r
 793         {\r
 794                 int snd_excess_add;\r
 795                 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)\r
 796                         PsndRerate(Pico.m.frame_count ? 1 : 0);\r
 797 \r
 798                 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
 799                 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
 800                         PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
 801                 gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);\r
 802                 gp2x_sound_volume(currentConfig.volume, currentConfig.volume);\r
 803                 PicoWriteSound = updateSound;\r
 804                 update_volume(0, 0);\r
 805                 memset(sndBuffer, 0, sizeof(sndBuffer));\r
 806                 PsndOut = sndBuffer;\r
 807                 PsndRate_old = PsndRate;\r
 808                 PicoOpt_old  = PicoOpt;\r
 809                 pal_old = Pico.m.pal;\r
 810         } else {\r
 811                 PsndOut = NULL;\r
 812         }\r
 813 \r
 814         // prepare CD buffer\r
 815         if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
 816 \r
 817         // calc vsync offset to sync timing code with vsync\r
 818         if (currentConfig.EmuOpt&0x2000) {\r
 819                 gettimeofday(&tval, 0);\r
 820                 gp2x_video_wait_vsync();\r
 821                 gettimeofday(&tval, 0);\r
 822                 vsync_offset = tval.tv_usec;\r
 823                 while (vsync_offset >= target_frametime)\r
 824                         vsync_offset -= target_frametime;\r
 825                 if (!vsync_offset) vsync_offset++;\r
 826                 printf("vsync_offset: %i\n", vsync_offset);\r
 827         } else\r
 828                 vsync_offset = 0;\r
 829 \r
 830         frames_done = frames_shown = thissec =\r
 831         pframes_done = pframes_shown = pthissec = 0;\r
 832 \r
 833         // loop\r
 834         while (engineState == PGS_Running)\r
 835         {\r
 836                 int modes;\r
 837 \r
 838                 gettimeofday(&tval, 0);\r
 839                 if (reset_timing) {\r
 840                         reset_timing = 0;\r
 841                         pthissec = tval.tv_sec;\r
 842                         pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
 843                 }\r
 844 \r
 845                 // show notice message?\r
 846                 if (noticeMsgTime.tv_sec)\r
 847                 {\r
 848                         static int noticeMsgSum;\r
 849                         if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
 850                                 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
 851                                 clearArea(0);\r
 852                                 notice = 0;\r
 853                         } else {\r
 854                                 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
 855                                 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
 856                                 notice = noticeMsg;\r
 857                         }\r
 858                 }\r
 859 \r
 860                 // check for mode changes\r
 861                 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
 862                 if (modes != oldmodes)\r
 863                 {\r
 864                         int scalex = SCREEN_WIDTH;\r
 865                         osd_fps_x = OSD_FPS_X;\r
 866                         if (modes & 4) {\r
 867                                 vidCpyM2 = vidCpyM2_40col;\r
 868                         } else {\r
 869                                 if (PicoOpt & 0x100) {\r
 870                                         vidCpyM2 = vidCpyM2_32col_nobord;\r
 871                                         scalex = 256;\r
 872                                         osd_fps_x = OSD_FPS_X - 64;\r
 873                                 } else {\r
 874                                         vidCpyM2 = vidCpyM2_32col;\r
 875                                 }\r
 876                         }\r
 877                         if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
 878                              gp2x_video_RGB_setscaling(8, scalex, 224);\r
 879                         else gp2x_video_RGB_setscaling(0, scalex, 240);\r
 880                         oldmodes = modes;\r
 881                         clearArea(1);\r
 882                 }\r
 883 \r
 884                 // second changed?\r
 885                 if (thissec != tval.tv_sec)\r
 886                 {\r
 887 #ifdef BENCHMARK\r
 888                         static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
 889                         if (++bench == 10) {\r
 890                                 bench = 0;\r
 891                                 bench_fps_s = bench_fps;\r
 892                                 bf[bfp++ & 3] = bench_fps;\r
 893                                 bench_fps = 0;\r
 894                         }\r
 895                         bench_fps += frames_shown;\r
 896                         sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
 897 #else\r
 898                         if (currentConfig.EmuOpt & 2) {\r
 899                                 //sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
 900                                 sprintf(fpsbuff, "%4i", frames_shown);\r
 901                                 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
 902                         }\r
 903 #endif\r
 904                         frames_shown = frames_done = 0;\r
 905                         thissec = tval.tv_sec;\r
 906                 }\r
 907 #ifdef PFRAMES\r
 908                 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
 909 #endif\r
 910 \r
 911                 if (pthissec != tval.tv_sec)\r
 912                 {\r
 913                         if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
 914                                 pframes_done = pframes_shown = 0;\r
 915                         } else {\r
 916                                 // it is quite common for this implementation to leave 1 fame unfinished\r
 917                                 // when second changes, but we don't want buffer to starve.\r
 918                                 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
 919                                         updateKeys();\r
 920                                         SkipFrame(1); pframes_done++;\r
 921                                 }\r
 922 \r
 923                                 pframes_done  -= target_fps; if (pframes_done  < 0) pframes_done  = 0;\r
 924                                 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
 925                                 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
 926                         }\r
 927                         pthissec = tval.tv_sec;\r
 928                 }\r
 929 \r
 930                 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
 931                 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
 932                 {\r
 933                         for(i = 0; i < currentConfig.Frameskip; i++) {\r
 934                                 updateKeys();\r
 935                                 SkipFrame(1); pframes_done++; frames_done++;\r
 936                                 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
 937                                         gettimeofday(&tval, 0);\r
 938                                         if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
 939                                         if (tval.tv_usec < lim_time) { // we are too fast\r
 940                                                 simpleWait(pthissec, lim_time);\r
 941                                         }\r
 942                                 }\r
 943                                 lim_time += target_frametime;\r
 944                         }\r
 945                 }\r
 946                 else if (tval.tv_usec > lim_time) // auto frameskip\r
 947                 {\r
 948                         // no time left for this frame - skip\r
 949                         if (tval.tv_usec - lim_time >= 300000) {\r
 950                                 /* something caused a slowdown for us (disk access? cache flush?)\r
 951                                  * try to recover by resetting timing... */\r
 952                                 reset_timing = 1;\r
 953                                 continue;\r
 954                         }\r
 955                         updateKeys();\r
 956                         SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
 957                         continue;\r
 958                 }\r
 959 \r
 960                 updateKeys();\r
 961                 PicoFrame();\r
 962 \r
 963                 // check time\r
 964                 gettimeofday(&tval, 0);\r
 965                 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
 966 \r
 967                 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
 968                         reset_timing = 1;\r
 969 /*              else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
 970                 {\r
 971                         // sleep or vsync if we are still too fast\r
 972                         // usleep sleeps for ~20ms minimum, so it is not a solution here\r
 973                         if (!reset_timing && tval.tv_usec < lim_time)\r
 974                         {\r
 975                                 // we are too fast\r
 976                                 if (vsync_offset) {\r
 977                                         if (lim_time - tval.tv_usec > target_frametime/2)\r
 978                                                 simpleWait(pthissec, lim_time - target_frametime/4);\r
 979                                         gp2x_video_wait_vsync();\r
 980                                 } else {\r
 981                                         simpleWait(pthissec, lim_time);\r
 982                                 }\r
 983                         }\r
 984                 }\r
 985 */\r
 986                 blit(fpsbuff, notice);\r
 987 \r
 988                 pframes_done++; pframes_shown++;\r
 989                  frames_done++;  frames_shown++;\r
 990         }\r
 991 \r
 992         emu_changeFastForward(0);\r
 993 \r
 994         if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
 995 \r
 996         // save SRAM\r
 997         if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
 998                 emu_state_cb("Writing SRAM/BRAM..");\r
 999                 emu_SaveLoadGame(0, 1);\r
1000                 SRam.changed = 0;\r
1001         }\r
1002 \r
1003         // if in 8bit mode, generate 16bit image for menu background\r
1004         if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
1005                 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
1006 }\r
1007 \r
1008 \r
1009 void emu_ResetGame(void)\r
1010 {\r
1011         PicoReset();\r
1012         reset_timing = 1;\r
1013 }\r
1014 \r