frontend/libretro.c

   1 /*
   2  * (C) notaz, 2012,2014,2015
   3  *
   4  * This work is licensed under the terms of the GNU GPLv2 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #define _GNU_SOURCE 1 // strcasestr
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <strings.h>
  13 #ifdef __MACH__
  14 #include <unistd.h>
  15 #include <sys/syscall.h>
  16 #endif
  17
  18 #include "../libpcsxcore/misc.h"
  19 #include "../libpcsxcore/psxcounters.h"
  20 #include "../libpcsxcore/psxmem_map.h"
  21 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
  22 #include "../libpcsxcore/cdrom.h"
  23 #include "../libpcsxcore/cdriso.h"
  24 #include "../libpcsxcore/cheat.h"
  25 #include "../libpcsxcore/r3000a.h"
  26 #include "../plugins/dfsound/out.h"
  27 #include "../plugins/dfsound/spu_config.h"
  28 #include "../plugins/dfinput/externals.h"
  29 #include "cspace.h"
  30 #include "main.h"
  31 #include "menu.h"
  32 #include "plugin.h"
  33 #include "plugin_lib.h"
  34 #include "arm_features.h"
  35 #include "revision.h"
  36
  37 #include <libretro.h>
  38 #include "libretro_core_options.h"
  39
  40 #ifdef _3DS
  41 #include "3ds/3ds_utils.h"
  42 #endif
  43
  44 #define PORTS_NUMBER 8
  45
  46 #ifndef MIN
  47 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  48 #endif
  49
  50 #ifndef MAX
  51 #define MAX(a, b) ((a) > (b) ? (a) : (b))
  52 #endif
  53
  54 #define ISHEXDEC ((buf[cursor]>='0') && (buf[cursor]<='9')) || ((buf[cursor]>='a') && (buf[cursor]<='f')) || ((buf[cursor]>='A') && (buf[cursor]<='F'))
  55
  56 #define INTERNAL_FPS_SAMPLE_PERIOD 64
  57
  58 //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
  59 static int rebootemu = 0;
  60
  61 static retro_video_refresh_t video_cb;
  62 static retro_input_poll_t input_poll_cb;
  63 static retro_input_state_t input_state_cb;
  64 static retro_environment_t environ_cb;
  65 static retro_audio_sample_batch_t audio_batch_cb;
  66 static retro_set_rumble_state_t rumble_cb;
  67 static struct retro_log_callback logging;
  68 static retro_log_printf_t log_cb;
  69
  70 static void *vout_buf;
  71 static void * vout_buf_ptr;
  72 static int vout_width, vout_height;
  73 static int vout_doffs_old, vout_fb_dirty;
  74 static bool vout_can_dupe;
  75 static bool duping_enable;
  76 static bool found_bios;
  77 static bool display_internal_fps = false;
  78 static unsigned frame_count = 0;
  79 static bool libretro_supports_bitmasks = false;
  80 static int show_advanced_gpu_peops_settings = -1;
  81 static int show_advanced_gpu_unai_settings  = -1;
  82
  83 static unsigned previous_width = 0;
  84 static unsigned previous_height = 0;
  85
  86 static int plugins_opened;
  87 static int is_pal_mode;
  88
  89 /* memory card data */
  90 extern char Mcd1Data[MCD_SIZE];
  91 extern char Mcd2Data[MCD_SIZE];
  92 extern char McdDisable[2];
  93
  94 /* PCSX ReARMed core calls and stuff */
  95 int in_type[8] =  { PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
  96                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
  97                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
  98                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE };
  99 int in_analog_left[8][2] = {{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 }};
 100 int in_analog_right[8][2] = {{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 }};
 101 unsigned short in_keystate[PORTS_NUMBER];
 102 int multitap1 = 0;
 103 int multitap2 = 0;
 104 int in_enable_vibration = 1;
 105
 106 // NegCon adjustment parameters
 107 // > The NegCon 'twist' action is somewhat awkward when mapped
 108 //   to a standard analog stick -> user should be able to tweak
 109 //   response/deadzone for comfort
 110 // > When response is linear, 'additional' deadzone (set here)
 111 //   may be left at zero, since this is normally handled via in-game
 112 //   options menus
 113 // > When response is non-linear, deadzone should be set to match the
 114 //   controller being used (otherwise precision may be lost)
 115 // > negcon_linearity:
 116 //   - 1: Response is linear - recommended when using racing wheel
 117 //        peripherals, not recommended for standard gamepads
 118 //   - 2: Response is quadratic - optimal setting for gamepads
 119 //   - 3: Response is cubic - enables precise fine control, but
 120 //        difficult to use...
 121 #define NEGCON_RANGE 0x7FFF
 122 static int negcon_deadzone = 0;
 123 static int negcon_linearity = 1;
 124
 125 /* PSX max resolution is 640x512, but with enhancement it's 1024x512 */
 126 #define VOUT_MAX_WIDTH 1024
 127 #define VOUT_MAX_HEIGHT 512
 128
 129 //Dummy functions
 130 bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info){return false;}
 131 void retro_unload_game(void){}
 132 static int vout_open(void){return 0;}
 133 static void vout_close(void){}
 134 static int snd_init(void){return 0;}
 135 static void snd_finish(void){}
 136 static int snd_busy(void){return 0;}
 137
 138 static void init_memcard(char *mcd_data)
 139 {
 140         unsigned off = 0;
 141         unsigned i;
 142
 143         memset(mcd_data, 0, MCD_SIZE);
 144
 145         mcd_data[off++] = 'M';
 146         mcd_data[off++] = 'C';
 147         off += 0x7d;
 148         mcd_data[off++] = 0x0e;
 149
 150         for (i = 0; i < 15; i++) {
 151                 mcd_data[off++] = 0xa0;
 152                 off += 0x07;
 153                 mcd_data[off++] = 0xff;
 154                 mcd_data[off++] = 0xff;
 155                 off += 0x75;
 156                 mcd_data[off++] = 0xa0;
 157         }
 158
 159         for (i = 0; i < 20; i++) {
 160                 mcd_data[off++] = 0xff;
 161                 mcd_data[off++] = 0xff;
 162                 mcd_data[off++] = 0xff;
 163                 mcd_data[off++] = 0xff;
 164                 off += 0x04;
 165                 mcd_data[off++] = 0xff;
 166                 mcd_data[off++] = 0xff;
 167                 off += 0x76;
 168         }
 169 }
 170
 171 static void set_vout_fb()
 172 {
 173   struct retro_framebuffer fb = {0};
 174
 175   fb.width           = vout_width;
 176   fb.height          = vout_height;
 177   fb.access_flags    = RETRO_MEMORY_ACCESS_WRITE;
 178
 179   if (environ_cb(RETRO_ENVIRONMENT_GET_CURRENT_SOFTWARE_FRAMEBUFFER, &fb) && fb.format == RETRO_PIXEL_FORMAT_RGB565)
 180      vout_buf_ptr = (uint16_t*)fb.data;
 181   else
 182      vout_buf_ptr = vout_buf;
 183 }
 184
 185 static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
 186 {
 187   vout_width = w;
 188   vout_height = h;
 189
 190         if (previous_width != vout_width || previous_height != vout_height)
 191         {
 192                 previous_width = vout_width;
 193                 previous_height = vout_height;
 194
 195         struct retro_system_av_info info;
 196         retro_get_system_av_info(&info);
 197         environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &info.geometry);
 198         }
 199
 200   set_vout_fb();
 201 }
 202
 203 #ifndef FRONTEND_SUPPORTS_RGB565
 204 static void convert(void *buf, size_t bytes)
 205 {
 206         unsigned int i, v, *p = buf;
 207
 208         for (i = 0; i < bytes / 4; i++) {
 209                 v = p[i];
 210                 p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
 211         }
 212 }
 213 #endif
 214
 215 static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
 216 {
 217         unsigned short *dest = vout_buf_ptr;
 218         const unsigned short *src = vram;
 219         int dstride = vout_width, h1 = h;
 220         int doffs;
 221
 222         if (vram == NULL) {
 223                 // blanking
 224                 memset(vout_buf_ptr, 0, dstride * h * 2);
 225                 goto out;
 226         }
 227
 228         doffs = (vout_height - h) * dstride;
 229         doffs += (dstride - w) / 2 & ~1;
 230         if (doffs != vout_doffs_old) {
 231                 // clear borders
 232                 memset(vout_buf_ptr, 0, dstride * h * 2);
 233                 vout_doffs_old = doffs;
 234         }
 235         dest += doffs;
 236
 237         if (bgr24)
 238         {
 239                 // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
 240                 for (; h1-- > 0; dest += dstride, src += stride)
 241                 {
 242                         bgr888_to_rgb565(dest, src, w * 3);
 243                 }
 244         }
 245         else
 246         {
 247                 for (; h1-- > 0; dest += dstride, src += stride)
 248                 {
 249                         bgr555_to_rgb565(dest, src, w * 2);
 250                 }
 251         }
 252
 253 out:
 254 #ifndef FRONTEND_SUPPORTS_RGB565
 255         convert(vout_buf_ptr, vout_width * vout_height * 2);
 256 #endif
 257         vout_fb_dirty = 1;
 258         pl_rearmed_cbs.flip_cnt++;
 259 }
 260
 261 #ifdef _3DS
 262 typedef struct
 263 {
 264    void* buffer;
 265    uint32_t target_map;
 266    size_t size;
 267    enum psxMapTag tag;
 268 }psx_map_t;
 269
 270 psx_map_t custom_psx_maps[] = {
 271    {NULL, 0x13000000, 0x210000, MAP_TAG_RAM},   // 0x80000000
 272    {NULL, 0x12800000, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 273    {NULL, 0x12c00000, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 274    {NULL, 0x11000000, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 275    {NULL, 0x12000000, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 276 };
 277
 278 void* pl_3ds_mmap(unsigned long addr, size_t size, int is_fixed,
 279         enum psxMapTag tag)
 280 {
 281    (void)is_fixed;
 282    (void)addr;
 283
 284    if (__ctr_svchax)
 285    {
 286       psx_map_t* custom_map = custom_psx_maps;
 287
 288       for (; custom_map->size; custom_map++)
 289       {
 290          if ((custom_map->size == size) && (custom_map->tag == tag))
 291          {
 292             uint32_t ptr_aligned, tmp;
 293
 294             custom_map->buffer = malloc(size + 0x1000);
 295             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 296
 297             if(svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_MAP, 0x3) < 0)
 298             {
 299                SysPrintf("could not map memory @0x%08X\n", custom_map->target_map);
 300                exit(1);
 301             }
 302
 303             return (void*)custom_map->target_map;
 304          }
 305       }
 306    }
 307
 308    return malloc(size);
 309 }
 310
 311 void pl_3ds_munmap(void *ptr, size_t size, enum psxMapTag tag)
 312 {
 313    (void)tag;
 314
 315    if (__ctr_svchax)
 316    {
 317       psx_map_t* custom_map = custom_psx_maps;
 318
 319       for (; custom_map->size; custom_map++)
 320       {
 321          if ((custom_map->target_map == (uint32_t)ptr))
 322          {
 323             uint32_t ptr_aligned, tmp;
 324
 325             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 326
 327             svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0x3);
 328
 329             free(custom_map->buffer);
 330             custom_map->buffer = NULL;
 331             return;
 332          }
 333       }
 334    }
 335
 336    free(ptr);
 337 }
 338 #endif
 339
 340 #ifdef VITA
 341 typedef struct
 342 {
 343    void* buffer;
 344    uint32_t target_map;
 345    size_t size;
 346    enum psxMapTag tag;
 347 }psx_map_t;
 348
 349 void* addr = NULL;
 350
 351 psx_map_t custom_psx_maps[] = {
 352    {NULL, NULL, 0x210000, MAP_TAG_RAM},   // 0x80000000
 353    {NULL, NULL, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 354    {NULL, NULL, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 355    {NULL, NULL, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 356    {NULL, NULL, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 357 };
 358
 359 int init_vita_mmap(){
 360   int n;
 361   void * tmpaddr;
 362   addr = malloc(64*1024*1024);
 363   if(addr==NULL)
 364     return -1;
 365   tmpaddr = ((u32)(addr+0xFFFFFF))&~0xFFFFFF;
 366   custom_psx_maps[0].buffer=tmpaddr+0x2000000;
 367   custom_psx_maps[1].buffer=tmpaddr+0x1800000;
 368   custom_psx_maps[2].buffer=tmpaddr+0x1c00000;
 369   custom_psx_maps[3].buffer=tmpaddr+0x0000000;
 370   custom_psx_maps[4].buffer=tmpaddr+0x1000000;
 371 #if 0
 372   for(n = 0; n < 5; n++){
 373     sceClibPrintf("addr reserved %x\n",custom_psx_maps[n].buffer);
 374   }
 375 #endif
 376   return 0;
 377 }
 378
 379 void deinit_vita_mmap(){
 380   free(addr);
 381 }
 382
 383 void* pl_vita_mmap(unsigned long addr, size_t size, int is_fixed,
 384         enum psxMapTag tag)
 385 {
 386    (void)is_fixed;
 387    (void)addr;
 388
 389
 390     psx_map_t* custom_map = custom_psx_maps;
 391
 392     for (; custom_map->size; custom_map++)
 393     {
 394        if ((custom_map->size == size) && (custom_map->tag == tag))
 395        {
 396           return custom_map->buffer;
 397        }
 398     }
 399
 400
 401    return malloc(size);
 402 }
 403
 404 void pl_vita_munmap(void *ptr, size_t size, enum psxMapTag tag)
 405 {
 406    (void)tag;
 407
 408    psx_map_t* custom_map = custom_psx_maps;
 409
 410   for (; custom_map->size; custom_map++)
 411   {
 412      if ((custom_map->buffer == ptr))
 413      {
 414         return;
 415      }
 416   }
 417
 418    free(ptr);
 419 }
 420 #endif
 421
 422 static void *pl_mmap(unsigned int size)
 423 {
 424         return psxMap(0, size, 0, MAP_TAG_VRAM);
 425 }
 426
 427 static void pl_munmap(void *ptr, unsigned int size)
 428 {
 429         psxUnmap(ptr, size, MAP_TAG_VRAM);
 430 }
 431
 432 struct rearmed_cbs pl_rearmed_cbs = {
 433         .pl_vout_open = vout_open,
 434         .pl_vout_set_mode = vout_set_mode,
 435         .pl_vout_flip = vout_flip,
 436         .pl_vout_close = vout_close,
 437         .mmap = pl_mmap,
 438         .munmap = pl_munmap,
 439         /* from psxcounters */
 440         .gpu_hcnt = &hSyncCount,
 441         .gpu_frame_count = &frame_counter,
 442 };
 443
 444 void pl_frame_limit(void)
 445 {
 446         /* called once per frame, make psxCpu->Execute() above return */
 447         stop = 1;
 448 }
 449
 450 void pl_timing_prepare(int is_pal)
 451 {
 452         is_pal_mode = is_pal;
 453 }
 454
 455 void plat_trigger_vibrate(int pad, int low, int high)
 456 {
 457         if (!rumble_cb)
 458                 return;
 459
 460         if (in_enable_vibration)
 461         {
 462                 rumble_cb(pad, RETRO_RUMBLE_STRONG, high << 8);
 463                 rumble_cb(pad, RETRO_RUMBLE_WEAK, low ? 0xffff : 0x0);
 464     }
 465 }
 466
 467 void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in)
 468 {
 469 }
 470
 471 /* sound calls */
 472 static void snd_feed(void *buf, int bytes)
 473 {
 474         if (audio_batch_cb != NULL)
 475                 audio_batch_cb(buf, bytes / 4);
 476 }
 477
 478 void out_register_libretro(struct out_driver *drv)
 479 {
 480         drv->name = "libretro";
 481         drv->init = snd_init;
 482         drv->finish = snd_finish;
 483         drv->busy = snd_busy;
 484         drv->feed = snd_feed;
 485 }
 486
 487 /* libretro */
 488 void retro_set_environment(retro_environment_t cb)
 489 {
 490    environ_cb = cb;
 491
 492    if (cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &logging))
 493       log_cb = logging.log;
 494
 495    libretro_set_core_options(environ_cb);
 496 }
 497
 498 void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
 499 void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
 500 void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
 501 void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
 502 void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
 503
 504 unsigned retro_api_version(void)
 505 {
 506         return RETRO_API_VERSION;
 507 }
 508
 509 static int controller_port_variable(unsigned port, struct retro_variable *var)
 510 {
 511         if (port >= PORTS_NUMBER)
 512                 return 0;
 513
 514         if (!environ_cb)
 515                 return 0;
 516
 517         var->value = NULL;
 518         switch (port) {
 519         case 0:
 520                 var->key = "pcsx_rearmed_pad1type";
 521                 break;
 522         case 1:
 523                 var->key = "pcsx_rearmed_pad2type";
 524                 break;
 525         case 2:
 526                 var->key = "pcsx_rearmed_pad3type";
 527                 break;
 528         case 3:
 529                 var->key = "pcsx_rearmed_pad4type";
 530                 break;
 531         case 4:
 532                 var->key = "pcsx_rearmed_pad5type";
 533                 break;
 534         case 5:
 535                 var->key = "pcsx_rearmed_pad6type";
 536                 break;
 537         case 6:
 538                 var->key = "pcsx_rearmed_pad7type";
 539                 break;
 540         case 7:
 541                 var->key = "pcsx_rearmed_pad8type";
 542                 break;
 543         }
 544
 545         return environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, var) || var->value;
 546 }
 547
 548 static void update_controller_port_variable(unsigned port)
 549 {
 550         if (port >= PORTS_NUMBER)
 551                 return;
 552
 553         struct retro_variable var;
 554
 555         if (controller_port_variable(port, &var))
 556         {
 557                 if (strcmp(var.value, "standard") == 0)
 558                         in_type[port] = PSE_PAD_TYPE_STANDARD;
 559                 else if (strcmp(var.value, "analog") == 0)
 560                         in_type[port] = PSE_PAD_TYPE_ANALOGJOY;
 561                 else if (strcmp(var.value, "dualshock") == 0)
 562                         in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 563                 else if (strcmp(var.value, "negcon") == 0)
 564                         in_type[port] = PSE_PAD_TYPE_NEGCON;
 565                 else if (strcmp(var.value, "none") == 0)
 566                         in_type[port] = PSE_PAD_TYPE_NONE;
 567                 // else 'default' case, do nothing
 568         }
 569 }
 570
 571 static void update_controller_port_device(unsigned port, unsigned device)
 572 {
 573         if (port >= PORTS_NUMBER)
 574                 return;
 575
 576         struct retro_variable var;
 577
 578         if (!controller_port_variable(port, &var))
 579                 return;
 580
 581         if (strcmp(var.value, "default") != 0)
 582                 return;
 583
 584         switch (device)
 585         {
 586         case RETRO_DEVICE_JOYPAD:
 587                 in_type[port] = PSE_PAD_TYPE_STANDARD;
 588                 break;
 589         case RETRO_DEVICE_ANALOG:
 590                 in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 591                 break;
 592         case RETRO_DEVICE_MOUSE:
 593                 in_type[port] = PSE_PAD_TYPE_MOUSE;
 594                 break;
 595         case RETRO_DEVICE_LIGHTGUN:
 596                 in_type[port] = PSE_PAD_TYPE_GUN;
 597                 break;
 598         case RETRO_DEVICE_NONE:
 599         default:
 600                 in_type[port] = PSE_PAD_TYPE_NONE;
 601         }
 602 }
 603
 604 static void update_multitap()
 605 {
 606         struct retro_variable var;
 607         int auto_case, port;
 608
 609         var.value = NULL;
 610         var.key = "pcsx_rearmed_multitap1";
 611         auto_case = 0;
 612         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 613         {
 614                 if (strcmp(var.value, "enabled") == 0)
 615                         multitap1 = 1;
 616                 else if (strcmp(var.value, "disabled") == 0)
 617                         multitap1 = 0;
 618                 else // 'auto' case
 619                         auto_case = 1;
 620         }
 621         else
 622                 auto_case = 1;
 623
 624         if (auto_case)
 625         {
 626                 // If a gamepad is plugged after port 2, we need a first multitap.
 627                 multitap1 = 0;
 628                 for (port = 2; port < PORTS_NUMBER; port++)
 629                         multitap1 |= in_type[port] != PSE_PAD_TYPE_NONE;
 630         }
 631
 632         var.value = NULL;
 633         var.key = "pcsx_rearmed_multitap2";
 634         auto_case = 0;
 635         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 636         {
 637                 if (strcmp(var.value, "enabled") == 0)
 638                         multitap2 = 1;
 639                 else if (strcmp(var.value, "disabled") == 0)
 640                         multitap2 = 0;
 641                 else // 'auto' case
 642                         auto_case = 1;
 643         }
 644         else
 645                 auto_case = 1;
 646
 647         if (auto_case)
 648         {
 649                 // If a gamepad is plugged after port 4, we need a second multitap.
 650                 multitap2 = 0;
 651                 for (port = 4; port < PORTS_NUMBER; port++)
 652                         multitap2 |= in_type[port] != PSE_PAD_TYPE_NONE;
 653         }
 654 }
 655
 656 void retro_set_controller_port_device(unsigned port, unsigned device)
 657 {
 658         SysPrintf("port %u  device %u",port,device);
 659
 660         if (port >= PORTS_NUMBER)
 661                 return;
 662
 663         update_controller_port_device(port, device);
 664         update_multitap();
 665 }
 666
 667 void retro_get_system_info(struct retro_system_info *info)
 668 {
 669         memset(info, 0, sizeof(*info));
 670         info->library_name = "PCSX-ReARMed";
 671 #ifndef GIT_VERSION
 672 #define GIT_VERSION ""
 673 #endif
 674         info->library_version = "r22" GIT_VERSION;
 675         info->valid_extensions = "bin|cue|img|mdf|pbp|toc|cbn|m3u|chd";
 676         info->need_fullpath = true;
 677 }
 678
 679 void retro_get_system_av_info(struct retro_system_av_info *info)
 680 {
 681
 682         unsigned geom_height = vout_height > 0 ? vout_height : 240;
 683         unsigned geom_width = vout_width > 0 ? vout_width : 320;
 684
 685         memset(info, 0, sizeof(*info));
 686         info->timing.fps            = is_pal_mode ? 50 : 60;
 687         info->timing.sample_rate    = 44100;
 688         info->geometry.base_width   = geom_width;
 689         info->geometry.base_height  = geom_height;
 690         info->geometry.max_width    = VOUT_MAX_WIDTH;
 691         info->geometry.max_height   = VOUT_MAX_HEIGHT;
 692         info->geometry.aspect_ratio = 4.0 / 3.0;
 693 }
 694
 695 /* savestates */
 696 size_t retro_serialize_size(void)
 697 {
 698         // it's currently 4380651-4397047 bytes,
 699         // but have some reserved for future
 700         return 0x440000;
 701 }
 702
 703 struct save_fp {
 704         char *buf;
 705         size_t pos;
 706         int is_write;
 707 };
 708
 709 static void *save_open(const char *name, const char *mode)
 710 {
 711         struct save_fp *fp;
 712
 713         if (name == NULL || mode == NULL)
 714                 return NULL;
 715
 716         fp = malloc(sizeof(*fp));
 717         if (fp == NULL)
 718                 return NULL;
 719
 720         fp->buf = (char *)name;
 721         fp->pos = 0;
 722         fp->is_write = (mode[0] == 'w' || mode[1] == 'w');
 723
 724         return fp;
 725 }
 726
 727 static int save_read(void *file, void *buf, u32 len)
 728 {
 729         struct save_fp *fp = file;
 730         if (fp == NULL || buf == NULL)
 731                 return -1;
 732
 733         memcpy(buf, fp->buf + fp->pos, len);
 734         fp->pos += len;
 735         return len;
 736 }
 737
 738 static int save_write(void *file, const void *buf, u32 len)
 739 {
 740         struct save_fp *fp = file;
 741         if (fp == NULL || buf == NULL)
 742                 return -1;
 743
 744         memcpy(fp->buf + fp->pos, buf, len);
 745         fp->pos += len;
 746         return len;
 747 }
 748
 749 static long save_seek(void *file, long offs, int whence)
 750 {
 751         struct save_fp *fp = file;
 752         if (fp == NULL)
 753                 return -1;
 754
 755         switch (whence) {
 756         case SEEK_CUR:
 757                 fp->pos += offs;
 758                 return fp->pos;
 759         case SEEK_SET:
 760                 fp->pos = offs;
 761                 return fp->pos;
 762         default:
 763                 return -1;
 764         }
 765 }
 766
 767 static void save_close(void *file)
 768 {
 769         struct save_fp *fp = file;
 770         size_t r_size = retro_serialize_size();
 771         if (fp == NULL)
 772                 return;
 773
 774         if (fp->pos > r_size)
 775                 SysPrintf("ERROR: save buffer overflow detected\n");
 776         else if (fp->is_write && fp->pos < r_size)
 777                 // make sure we don't save trash in leftover space
 778                 memset(fp->buf + fp->pos, 0, r_size - fp->pos);
 779         free(fp);
 780 }
 781
 782 bool retro_serialize(void *data, size_t size)
 783 {
 784         int ret = SaveState(data);
 785         return ret == 0 ? true : false;
 786 }
 787
 788 bool retro_unserialize(const void *data, size_t size)
 789 {
 790         int ret = LoadState(data);
 791         return ret == 0 ? true : false;
 792 }
 793
 794 /* cheats */
 795 void retro_cheat_reset(void)
 796 {
 797         ClearAllCheats();
 798 }
 799
 800 void retro_cheat_set(unsigned index, bool enabled, const char *code)
 801 {
 802         char buf[256];
 803         int ret;
 804
 805         // cheat funcs are destructive, need a copy..
 806         strncpy(buf, code, sizeof(buf));
 807         buf[sizeof(buf) - 1] = 0;
 808
 809         //Prepare buffered cheat for PCSX's AddCheat fucntion.
 810         int cursor=0;
 811         int nonhexdec=0;
 812         while (buf[cursor]){
 813                 if (!(ISHEXDEC)){
 814                         if (++nonhexdec%2){
 815                                 buf[cursor]=' ';
 816                         } else {
 817                                 buf[cursor]='\n';
 818                         }
 819                 }
 820                 cursor++;
 821         }
 822
 823
 824         if (index < NumCheats)
 825                 ret = EditCheat(index, "", buf);
 826         else
 827                 ret = AddCheat("", buf);
 828
 829         if (ret != 0)
 830                 SysPrintf("Failed to set cheat %#u\n", index);
 831         else if (index < NumCheats)
 832                 Cheats[index].Enabled = enabled;
 833 }
 834
 835 /* multidisk support */
 836 static bool disk_ejected;
 837 static unsigned int disk_current_index;
 838 static unsigned int disk_count;
 839 static struct disks_state {
 840         char *fname;
 841         int internal_index; // for multidisk eboots
 842 } disks[8];
 843
 844 static bool disk_set_eject_state(bool ejected)
 845 {
 846         // weird PCSX API..
 847         SetCdOpenCaseTime(ejected ? -1 : (time(NULL) + 2));
 848         LidInterrupt();
 849
 850         disk_ejected = ejected;
 851         return true;
 852 }
 853
 854 static bool disk_get_eject_state(void)
 855 {
 856         /* can't be controlled by emulated software */
 857         return disk_ejected;
 858 }
 859
 860 static unsigned int disk_get_image_index(void)
 861 {
 862         return disk_current_index;
 863 }
 864
 865 static bool disk_set_image_index(unsigned int index)
 866 {
 867         if (index >= sizeof(disks) / sizeof(disks[0]))
 868                 return false;
 869
 870         CdromId[0] = '\0';
 871         CdromLabel[0] = '\0';
 872
 873         if (disks[index].fname == NULL) {
 874                 SysPrintf("missing disk #%u\n", index);
 875                 CDR_shutdown();
 876
 877                 // RetroArch specifies "no disk" with index == count,
 878                 // so don't fail here..
 879                 disk_current_index = index;
 880                 return true;
 881         }
 882
 883         SysPrintf("switching to disk %u: \"%s\" #%d\n", index,
 884                 disks[index].fname, disks[index].internal_index);
 885
 886         cdrIsoMultidiskSelect = disks[index].internal_index;
 887         set_cd_image(disks[index].fname);
 888         if (ReloadCdromPlugin() < 0) {
 889                 SysPrintf("failed to load cdr plugin\n");
 890                 return false;
 891         }
 892         if (CDR_open() < 0) {
 893                 SysPrintf("failed to open cdr plugin\n");
 894                 return false;
 895         }
 896
 897         if (!disk_ejected) {
 898                 SetCdOpenCaseTime(time(NULL) + 2);
 899                 LidInterrupt();
 900         }
 901
 902         disk_current_index = index;
 903         return true;
 904 }
 905
 906 static unsigned int disk_get_num_images(void)
 907 {
 908         return disk_count;
 909 }
 910
 911 static bool disk_replace_image_index(unsigned index,
 912         const struct retro_game_info *info)
 913 {
 914         char *old_fname;
 915         bool ret = true;
 916
 917         if (index >= sizeof(disks) / sizeof(disks[0]))
 918                 return false;
 919
 920         old_fname = disks[index].fname;
 921         disks[index].fname = NULL;
 922         disks[index].internal_index = 0;
 923
 924         if (info != NULL) {
 925                 disks[index].fname = strdup(info->path);
 926                 if (index == disk_current_index)
 927                         ret = disk_set_image_index(index);
 928         }
 929
 930         if (old_fname != NULL)
 931                 free(old_fname);
 932
 933         return ret;
 934 }
 935
 936 static bool disk_add_image_index(void)
 937 {
 938         if (disk_count >= 8)
 939                 return false;
 940
 941         disk_count++;
 942         return true;
 943 }
 944
 945 static struct retro_disk_control_callback disk_control = {
 946         .set_eject_state = disk_set_eject_state,
 947         .get_eject_state = disk_get_eject_state,
 948         .get_image_index = disk_get_image_index,
 949         .set_image_index = disk_set_image_index,
 950         .get_num_images = disk_get_num_images,
 951         .replace_image_index = disk_replace_image_index,
 952         .add_image_index = disk_add_image_index,
 953 };
 954
 955 // just in case, maybe a win-rt port in the future?
 956 #ifdef _WIN32
 957 #define SLASH '\\'
 958 #else
 959 #define SLASH '/'
 960 #endif
 961
 962 #ifndef PATH_MAX
 963 #define PATH_MAX  4096
 964 #endif
 965
 966 static char base_dir[PATH_MAX];
 967
 968 static bool read_m3u(const char *file)
 969 {
 970         char line[PATH_MAX];
 971         char name[PATH_MAX];
 972         FILE *f = fopen(file, "r");
 973         if (!f)
 974                 return false;
 975
 976         while (fgets(line, sizeof(line), f) && disk_count < sizeof(disks) / sizeof(disks[0])) {
 977                 if (line[0] == '#')
 978                         continue;
 979                 char *carrige_return = strchr(line, '\r');
 980                 if (carrige_return)
 981                         *carrige_return = '\0';
 982                 char *newline = strchr(line, '\n');
 983                 if (newline)
 984                         *newline = '\0';
 985
 986                 if (line[0] != '\0')
 987                 {
 988                         snprintf(name, sizeof(name), "%s%c%s", base_dir, SLASH, line);
 989                         disks[disk_count++].fname = strdup(name);
 990                 }
 991         }
 992
 993         fclose(f);
 994         return (disk_count != 0);
 995 }
 996
 997 static void extract_directory(char *buf, const char *path, size_t size)
 998 {
 999    char *base;
1000    strncpy(buf, path, size - 1);
1001    buf[size - 1] = '\0';
1002
1003    base = strrchr(buf, '/');
1004    if (!base)
1005       base = strrchr(buf, '\\');
1006
1007    if (base)
1008       *base = '\0';
1009    else
1010    {
1011       buf[0] = '.';
1012       buf[1] = '\0';
1013    }
1014 }
1015
1016 #if defined(__QNX__) || defined(_WIN32)
1017 /* Blackberry QNX doesn't have strcasestr */
1018
1019 /*
1020  * Find the first occurrence of find in s, ignore case.
1021  */
1022 char *
1023 strcasestr(const char *s, const char*find)
1024 {
1025         char c, sc;
1026         size_t len;
1027
1028         if ((c = *find++) != 0) {
1029                 c = tolower((unsigned char)c);
1030                 len = strlen(find);
1031                 do {
1032                         do {
1033                                 if ((sc = *s++) == 0)
1034                                         return (NULL);
1035                         } while ((char)tolower((unsigned char)sc) != c);
1036                 } while (strncasecmp(s, find, len) != 0);
1037                 s--;
1038         }
1039         return ((char *)s);
1040 }
1041 #endif
1042
1043 bool retro_load_game(const struct retro_game_info *info)
1044 {
1045         size_t i;
1046         bool is_m3u = (strcasestr(info->path, ".m3u") != NULL);
1047
1048    struct retro_input_descriptor desc[] = {
1049       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1050       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1051       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1052       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1053       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1054       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1055       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1056       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1057       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1058       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1059       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1060       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1061       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1062       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1063       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1064       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1065       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1066       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1067       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1068       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1069
1070
1071       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1072       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1073       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1074       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1075       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1076       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1077       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1078       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1079       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1080       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1081       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1082       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1083       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1084       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1085       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1086       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1087       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1088       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1089       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1090       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1091
1092       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1093       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1094       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1095       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1096       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1097       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1098       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1099       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1100       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1101       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1102       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1103       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1104       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1105       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1106       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1107       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1108       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1109       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1110       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1111       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1112
1113       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1114       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1115       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1116       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1117       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1118       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1119       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1120       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1121       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1122       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1123       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1124       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1125       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1126       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1127       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1128       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1129       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1130       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1131       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1132       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1133
1134       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1135       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1136       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1137       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1138       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1139       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1140       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1141       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1142       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1143       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1144       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1145       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1146       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1147       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1148       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1149       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1150       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1151       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1152       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1153       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1154
1155       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1156       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1157       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1158       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1159       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1160       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1161       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1162       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1163       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1164       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1165       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1166       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1167       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1168       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1169       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1170       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1171       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1172       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1173       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1174       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1175
1176       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1177       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1178       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1179       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1180       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1181       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1182       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1183       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1184       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1185       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1186       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1187       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1188       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1189       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1190       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1191       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1192       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1193       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1194       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1195       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1196
1197       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1198       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1199       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1200       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1201       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1202       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1203       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1204       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1205       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1206       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1207       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1208       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1209       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1210       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1211       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1212       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1213       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1214       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1215       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1216       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1217
1218       { 0 },
1219    };
1220
1221          frame_count = 0;
1222
1223    environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
1224
1225 #ifdef FRONTEND_SUPPORTS_RGB565
1226         enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
1227         if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
1228                 SysPrintf("RGB565 supported, using it\n");
1229         }
1230 #endif
1231
1232         if (info == NULL || info->path == NULL) {
1233                 SysPrintf("info->path required\n");
1234                 return false;
1235         }
1236
1237         if (plugins_opened) {
1238                 ClosePlugins();
1239                 plugins_opened = 0;
1240         }
1241
1242         for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) {
1243                 if (disks[i].fname != NULL) {
1244                         free(disks[i].fname);
1245                         disks[i].fname = NULL;
1246                 }
1247                 disks[i].internal_index = 0;
1248         }
1249
1250         disk_current_index = 0;
1251         extract_directory(base_dir, info->path, sizeof(base_dir));
1252
1253         if (is_m3u) {
1254                 if (!read_m3u(info->path)) {
1255                         log_cb(RETRO_LOG_INFO, "failed to read m3u file\n");
1256                         return false;
1257                 }
1258         } else {
1259                 disk_count = 1;
1260                 disks[0].fname = strdup(info->path);
1261         }
1262
1263         set_cd_image(disks[0].fname);
1264
1265         /* have to reload after set_cd_image for correct cdr plugin */
1266         if (LoadPlugins() == -1) {
1267                 log_cb(RETRO_LOG_INFO, "failed to load plugins\n");
1268                 return false;
1269         }
1270
1271         plugins_opened = 1;
1272         NetOpened = 0;
1273
1274         if (OpenPlugins() == -1) {
1275                 log_cb(RETRO_LOG_INFO, "failed to open plugins\n");
1276                 return false;
1277         }
1278
1279         plugin_call_rearmed_cbs();
1280         dfinput_activate();
1281
1282         if (CheckCdrom() == -1) {
1283         log_cb(RETRO_LOG_INFO, "unsupported/invalid CD image: %s\n", info->path);
1284                 return false;
1285         }
1286
1287         SysReset();
1288
1289         if (LoadCdrom() == -1) {
1290                 log_cb(RETRO_LOG_INFO, "could not load CD\n");
1291                 return false;
1292         }
1293         emu_on_new_cd(0);
1294
1295         // multidisk images
1296         if (!is_m3u) {
1297                 disk_count = cdrIsoMultidiskCount < 8 ? cdrIsoMultidiskCount : 8;
1298                 for (i = 1; i < sizeof(disks) / sizeof(disks[0]) && i < cdrIsoMultidiskCount; i++) {
1299                         disks[i].fname = strdup(info->path);
1300                         disks[i].internal_index = i;
1301                 }
1302         }
1303
1304         return true;
1305 }
1306
1307 unsigned retro_get_region(void)
1308 {
1309         return is_pal_mode ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
1310 }
1311
1312 void *retro_get_memory_data(unsigned id)
1313 {
1314         if (id == RETRO_MEMORY_SAVE_RAM)
1315                 return Mcd1Data;
1316         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1317                 return psxM;
1318         else
1319                 return NULL;
1320 }
1321
1322 size_t retro_get_memory_size(unsigned id)
1323 {
1324         if (id == RETRO_MEMORY_SAVE_RAM)
1325                 return MCD_SIZE;
1326         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1327                 return 0x210000;
1328         else
1329                 return 0;
1330 }
1331
1332 void retro_reset(void)
1333 {
1334    //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
1335    rebootemu = 1;
1336         //SysReset();
1337 }
1338
1339 static const unsigned short retro_psx_map[] = {
1340         [RETRO_DEVICE_ID_JOYPAD_B]      = 1 << DKEY_CROSS,
1341         [RETRO_DEVICE_ID_JOYPAD_Y]      = 1 << DKEY_SQUARE,
1342         [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT,
1343         [RETRO_DEVICE_ID_JOYPAD_START]  = 1 << DKEY_START,
1344         [RETRO_DEVICE_ID_JOYPAD_UP]     = 1 << DKEY_UP,
1345         [RETRO_DEVICE_ID_JOYPAD_DOWN]   = 1 << DKEY_DOWN,
1346         [RETRO_DEVICE_ID_JOYPAD_LEFT]   = 1 << DKEY_LEFT,
1347         [RETRO_DEVICE_ID_JOYPAD_RIGHT]  = 1 << DKEY_RIGHT,
1348         [RETRO_DEVICE_ID_JOYPAD_A]      = 1 << DKEY_CIRCLE,
1349         [RETRO_DEVICE_ID_JOYPAD_X]      = 1 << DKEY_TRIANGLE,
1350         [RETRO_DEVICE_ID_JOYPAD_L]      = 1 << DKEY_L1,
1351         [RETRO_DEVICE_ID_JOYPAD_R]      = 1 << DKEY_R1,
1352         [RETRO_DEVICE_ID_JOYPAD_L2]     = 1 << DKEY_L2,
1353         [RETRO_DEVICE_ID_JOYPAD_R2]     = 1 << DKEY_R2,
1354         [RETRO_DEVICE_ID_JOYPAD_L3]     = 1 << DKEY_L3,
1355         [RETRO_DEVICE_ID_JOYPAD_R3]     = 1 << DKEY_R3,
1356 };
1357 #define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0]))
1358
1359 static void update_variables(bool in_flight)
1360 {
1361    struct retro_variable var;
1362    int i;
1363    int gpu_peops_fix = 0;
1364
1365    var.value = NULL;
1366    var.key = "pcsx_rearmed_frameskip";
1367    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1368       pl_rearmed_cbs.frameskip = atoi(var.value);
1369
1370    var.value = NULL;
1371    var.key = "pcsx_rearmed_region";
1372    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1373    {
1374       Config.PsxAuto = 0;
1375       if (strcmp(var.value, "auto") == 0)
1376          Config.PsxAuto = 1;
1377       else if (strcmp(var.value, "NTSC") == 0)
1378          Config.PsxType = 0;
1379       else if (strcmp(var.value, "PAL") == 0)
1380          Config.PsxType = 1;
1381    }
1382
1383    for (i = 0; i < PORTS_NUMBER; i++)
1384       update_controller_port_variable(i);
1385
1386    update_multitap();
1387
1388    var.value = NULL;
1389    var.key = "pcsx_rearmed_negcon_deadzone";
1390    negcon_deadzone = 0;
1391    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1392    {
1393       negcon_deadzone = (int)(atoi(var.value) * 0.01f * NEGCON_RANGE);
1394    }
1395
1396    var.value = NULL;
1397    var.key = "pcsx_rearmed_negcon_response";
1398    negcon_linearity = 1;
1399    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1400    {
1401       if (strcmp(var.value, "quadratic") == 0){
1402          negcon_linearity = 2;
1403       } else if (strcmp(var.value, "cubic") == 0){
1404          negcon_linearity = 3;
1405       }
1406    }
1407
1408    var.value = NULL;
1409    var.key = "pcsx_rearmed_vibration";
1410
1411    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1412    {
1413       if (strcmp(var.value, "disabled") == 0)
1414          in_enable_vibration = 0;
1415       else if (strcmp(var.value, "enabled") == 0)
1416          in_enable_vibration = 1;
1417    }
1418
1419    var.value = NULL;
1420    var.key = "pcsx_rearmed_dithering";
1421
1422    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1423    {
1424       if (strcmp(var.value, "disabled") == 0) {
1425          pl_rearmed_cbs.gpu_peops.iUseDither = 0;
1426          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 0;
1427          pl_rearmed_cbs.gpu_unai.dithering = 0;
1428 #ifdef __ARM_NEON__
1429          pl_rearmed_cbs.gpu_neon.allow_dithering = 0;
1430 #endif
1431       }
1432       else if (strcmp(var.value, "enabled") == 0) {
1433          pl_rearmed_cbs.gpu_peops.iUseDither = 1;
1434          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 1;
1435          pl_rearmed_cbs.gpu_unai.dithering = 1;
1436 #ifdef __ARM_NEON__
1437          pl_rearmed_cbs.gpu_neon.allow_dithering = 1;
1438 #endif
1439       }
1440    }
1441
1442 #ifdef __ARM_NEON__
1443    var.value = "NULL";
1444    var.key = "pcsx_rearmed_neon_interlace_enable";
1445
1446    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1447    {
1448       if (strcmp(var.value, "disabled") == 0)
1449          pl_rearmed_cbs.gpu_neon.allow_interlace = 0;
1450       else if (strcmp(var.value, "enabled") == 0)
1451          pl_rearmed_cbs.gpu_neon.allow_interlace = 1;
1452    }
1453
1454    var.value = NULL;
1455    var.key = "pcsx_rearmed_neon_enhancement_enable";
1456
1457    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1458    {
1459       if (strcmp(var.value, "disabled") == 0)
1460          pl_rearmed_cbs.gpu_neon.enhancement_enable = 0;
1461       else if (strcmp(var.value, "enabled") == 0)
1462          pl_rearmed_cbs.gpu_neon.enhancement_enable = 1;
1463    }
1464
1465    var.value = NULL;
1466    var.key = "pcsx_rearmed_neon_enhancement_no_main";
1467
1468    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1469    {
1470       if (strcmp(var.value, "disabled") == 0)
1471          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 0;
1472       else if (strcmp(var.value, "enabled") == 0)
1473          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 1;
1474    }
1475 #endif
1476
1477    var.value = "NULL";
1478    var.key = "pcsx_rearmed_duping_enable";
1479
1480    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1481    {
1482       if (strcmp(var.value, "disabled") == 0)
1483          duping_enable = false;
1484       else if (strcmp(var.value, "enabled") == 0)
1485          duping_enable = true;
1486    }
1487
1488    var.value = "NULL";
1489    var.key = "pcsx_rearmed_display_internal_fps";
1490
1491    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1492    {
1493       if (strcmp(var.value, "disabled") == 0)
1494          display_internal_fps = false;
1495       else if (strcmp(var.value, "enabled") == 0)
1496          display_internal_fps = true;
1497    }
1498
1499 #ifndef DRC_DISABLE
1500    var.value = NULL;
1501    var.key = "pcsx_rearmed_drc";
1502
1503    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1504    {
1505       R3000Acpu *prev_cpu = psxCpu;
1506
1507 #ifdef _3DS
1508       if(!__ctr_svchax)
1509          Config.Cpu = CPU_INTERPRETER;
1510       else
1511 #endif
1512       if (strcmp(var.value, "disabled") == 0)
1513          Config.Cpu = CPU_INTERPRETER;
1514       else if (strcmp(var.value, "enabled") == 0)
1515          Config.Cpu = CPU_DYNAREC;
1516
1517       psxCpu = (Config.Cpu == CPU_INTERPRETER) ? &psxInt : &psxRec;
1518       if (psxCpu != prev_cpu) {
1519          prev_cpu->Shutdown();
1520          psxCpu->Init();
1521          psxCpu->Reset(); // not really a reset..
1522       }
1523    }
1524 #endif
1525
1526    var.value = "NULL";
1527    var.key = "pcsx_rearmed_spu_reverb";
1528
1529    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1530    {
1531       if (strcmp(var.value, "disabled") == 0)
1532          spu_config.iUseReverb = false;
1533       else if (strcmp(var.value, "enabled") == 0)
1534          spu_config.iUseReverb = true;
1535    }
1536
1537    var.value = "NULL";
1538    var.key = "pcsx_rearmed_spu_interpolation";
1539
1540    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1541    {
1542       if (strcmp(var.value, "simple") == 0)
1543          spu_config.iUseInterpolation = 1;
1544       else if (strcmp(var.value, "gaussian") == 0)
1545          spu_config.iUseInterpolation = 2;
1546       else if (strcmp(var.value, "cubic") == 0)
1547          spu_config.iUseInterpolation = 3;
1548       else if (strcmp(var.value, "off") == 0)
1549          spu_config.iUseInterpolation = 0;
1550    }
1551
1552    var.value = "NULL";
1553    var.key = "pcsx_rearmed_pe2_fix";
1554
1555    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1556    {
1557       if (strcmp(var.value, "disabled") == 0)
1558          Config.RCntFix = 0;
1559       else if (strcmp(var.value, "enabled") == 0)
1560          Config.RCntFix = 1;
1561    }
1562
1563    var.value = "NULL";
1564    var.key = "pcsx_rearmed_idiablofix";
1565
1566    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1567    {
1568       if (strcmp(var.value, "disabled") == 0)
1569          spu_config.idiablofix = 0;
1570       else if (strcmp(var.value, "enabled") == 0)
1571          spu_config.idiablofix = 1;
1572    }
1573
1574    var.value = "NULL";
1575    var.key = "pcsx_rearmed_inuyasha_fix";
1576
1577    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1578    {
1579       if (strcmp(var.value, "disabled") == 0)
1580          Config.VSyncWA = 0;
1581       else if (strcmp(var.value, "enabled") == 0)
1582          Config.VSyncWA = 1;
1583    }
1584
1585    var.value = NULL;
1586    var.key = "pcsx_rearmed_noxadecoding";
1587    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1588    {
1589       if (strcmp(var.value, "disabled") == 0)
1590          Config.Xa = 1;
1591       else
1592          Config.Xa = 0;
1593    }
1594
1595    var.value = NULL;
1596    var.key = "pcsx_rearmed_nocdaudio";
1597    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1598    {
1599       if (strcmp(var.value, "disabled") == 0)
1600          Config.Cdda = 1;
1601       else
1602          Config.Cdda = 0;
1603    }
1604
1605 #ifndef DRC_DISABLE
1606    var.value = NULL;
1607    var.key = "pcsx_rearmed_nosmccheck";
1608    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1609    {
1610       if (strcmp(var.value, "enabled") == 0)
1611          new_dynarec_hacks |= NDHACK_NO_SMC_CHECK;
1612       else
1613          new_dynarec_hacks &= ~NDHACK_NO_SMC_CHECK;
1614    }
1615
1616    var.value = NULL;
1617    var.key = "pcsx_rearmed_gteregsunneeded";
1618    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1619    {
1620       if (strcmp(var.value, "enabled") == 0)
1621          new_dynarec_hacks |= NDHACK_GTE_UNNEEDED;
1622       else
1623          new_dynarec_hacks &= ~NDHACK_GTE_UNNEEDED;
1624    }
1625
1626    var.value = NULL;
1627    var.key = "pcsx_rearmed_nogteflags";
1628    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1629    {
1630       if (strcmp(var.value, "enabled") == 0)
1631          new_dynarec_hacks |= NDHACK_GTE_NO_FLAGS;
1632       else
1633          new_dynarec_hacks &= ~NDHACK_GTE_NO_FLAGS;
1634    }
1635 #endif
1636
1637 #ifdef GPU_PEOPS
1638    var.value = "NULL";
1639    var.key = "pcsx_rearmed_gpu_peops_fix_0";
1640
1641    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1642    {
1643       if (strcmp(var.value, "enabled") == 0)
1644          gpu_peops_fix |= (1 << 0);
1645    }
1646
1647    var.value = "NULL";
1648    var.key = "pcsx_rearmed_gpu_peops_fix_1";
1649
1650    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1651    {
1652       if (strcmp(var.value, "enabled") == 0)
1653          gpu_peops_fix |= (1 << 1);
1654    }
1655
1656    var.value = "NULL";
1657    var.key = "pcsx_rearmed_gpu_peops_fix_2";
1658
1659    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1660    {
1661       if (strcmp(var.value, "enabled") == 0)
1662          gpu_peops_fix |= (1 << 2);
1663    }
1664
1665    var.value = "NULL";
1666    var.key = "pcsx_rearmed_gpu_peops_fix_3";
1667
1668    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1669    {
1670       if (strcmp(var.value, "enabled") == 0)
1671          gpu_peops_fix |= (1 << 3);
1672    }
1673
1674    var.value = "NULL";
1675    var.key = "pcsx_rearmed_gpu_peops_fix_6";
1676
1677    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1678    {
1679       if (strcmp(var.value, "enabled") == 0)
1680          gpu_peops_fix |= (1 << 6);
1681    }
1682
1683    var.value = "NULL";
1684    var.key = "pcsx_rearmed_gpu_peops_fix_7";
1685
1686    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1687    {
1688       if (strcmp(var.value, "enabled") == 0)
1689          gpu_peops_fix |= (1 << 7);
1690    }
1691
1692    var.value = "NULL";
1693    var.key = "pcsx_rearmed_gpu_peops_fix_8";
1694
1695    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1696    {
1697       if (strcmp(var.value, "enabled") == 0)
1698          gpu_peops_fix |= (1 << 8);
1699    }
1700
1701    var.value = "NULL";
1702    var.key = "pcsx_rearmed_gpu_peops_fix_9";
1703
1704    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1705    {
1706       if (strcmp(var.value, "enabled") == 0)
1707          gpu_peops_fix |= (1 << 9);
1708    }
1709
1710    var.value = "NULL";
1711    var.key = "pcsx_rearmed_gpu_peops_fix_10";
1712
1713    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1714    {
1715       if (strcmp(var.value, "enabled") == 0)
1716          gpu_peops_fix |= (1 << 10);
1717    }
1718
1719    if (pl_rearmed_cbs.gpu_peops.dwActFixes != gpu_peops_fix)
1720       pl_rearmed_cbs.gpu_peops.dwActFixes = gpu_peops_fix;
1721
1722
1723     /* Show/hide core options */
1724
1725    var.key = "pcsx_rearmed_show_gpu_peops_settings";
1726    var.value = NULL;
1727
1728    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1729    {
1730       int show_advanced_gpu_peops_settings_prev = show_advanced_gpu_peops_settings;
1731
1732       show_advanced_gpu_peops_settings = 1;
1733       if (strcmp(var.value, "disabled") == 0)
1734          show_advanced_gpu_peops_settings = 0;
1735
1736       if (show_advanced_gpu_peops_settings != show_advanced_gpu_peops_settings_prev)
1737       {
1738          unsigned i;
1739          struct retro_core_option_display option_display;
1740          char gpu_peops_option[9][32] = {
1741             "pcsx_rearmed_gpu_peops_fix_0",
1742             "pcsx_rearmed_gpu_peops_fix_1",
1743             "pcsx_rearmed_gpu_peops_fix_2",
1744             "pcsx_rearmed_gpu_peops_fix_3",
1745             "pcsx_rearmed_gpu_peops_fix_6",
1746             "pcsx_rearmed_gpu_peops_fix_7",
1747             "pcsx_rearmed_gpu_peops_fix_8",
1748             "pcsx_rearmed_gpu_peops_fix_9",
1749             "pcsx_rearmed_gpu_peops_fix_10",
1750          };
1751
1752          option_display.visible = show_advanced_gpu_peops_settings;
1753
1754          for (i = 0; i < 9; i++)
1755          {
1756             option_display.key = gpu_peops_option[i];
1757             environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
1758          }
1759       }
1760    }
1761 #endif
1762
1763 #ifdef GPU_UNAI
1764    var.key = "pcsx_rearmed_gpu_unai_ilace_force";
1765    var.value = NULL;
1766
1767    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1768    {
1769       if (strcmp(var.value, "disabled") == 0)
1770          pl_rearmed_cbs.gpu_unai.ilace_force = 0;
1771       else if (strcmp(var.value, "enabled") == 0)
1772          pl_rearmed_cbs.gpu_unai.ilace_force = 1;
1773    }
1774
1775    var.key = "pcsx_rearmed_gpu_unai_pixel_skip";
1776    var.value = NULL;
1777
1778    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1779    {
1780       if (strcmp(var.value, "disabled") == 0)
1781          pl_rearmed_cbs.gpu_unai.pixel_skip = 0;
1782       else if (strcmp(var.value, "enabled") == 0)
1783          pl_rearmed_cbs.gpu_unai.pixel_skip = 1;
1784    }
1785
1786    var.key = "pcsx_rearmed_gpu_unai_lighting";
1787    var.value = NULL;
1788
1789    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1790    {
1791       if (strcmp(var.value, "disabled") == 0)
1792          pl_rearmed_cbs.gpu_unai.lighting = 0;
1793       else if (strcmp(var.value, "enabled") == 0)
1794          pl_rearmed_cbs.gpu_unai.lighting = 1;
1795    }
1796
1797    var.key = "pcsx_rearmed_gpu_unai_fast_lighting";
1798    var.value = NULL;
1799
1800    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1801    {
1802       if (strcmp(var.value, "disabled") == 0)
1803          pl_rearmed_cbs.gpu_unai.fast_lighting = 0;
1804       else if (strcmp(var.value, "enabled") == 0)
1805          pl_rearmed_cbs.gpu_unai.fast_lighting = 1;
1806    }
1807
1808    var.key = "pcsx_rearmed_gpu_unai_blending";
1809    var.value = NULL;
1810
1811    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1812    {
1813       if (strcmp(var.value, "disabled") == 0)
1814          pl_rearmed_cbs.gpu_unai.blending = 0;
1815       else if (strcmp(var.value, "enabled") == 0)
1816          pl_rearmed_cbs.gpu_unai.blending = 1;
1817    }
1818
1819    var.key = "pcsx_rearmed_show_gpu_unai_settings";
1820    var.value = NULL;
1821
1822    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1823    {
1824       int show_advanced_gpu_unai_settings_prev = show_advanced_gpu_unai_settings;
1825
1826       show_advanced_gpu_unai_settings = 1;
1827       if (strcmp(var.value, "disabled") == 0)
1828          show_advanced_gpu_unai_settings = 0;
1829
1830       if (show_advanced_gpu_unai_settings != show_advanced_gpu_unai_settings_prev)
1831       {
1832          unsigned i;
1833          struct retro_core_option_display option_display;
1834          char gpu_unai_option[5][40] = {
1835             "pcsx_rearmed_gpu_unai_blending",
1836             "pcsx_rearmed_gpu_unai_lighting",
1837             "pcsx_rearmed_gpu_unai_fast_lighting",
1838             "pcsx_rearmed_gpu_unai_ilace_force",
1839             "pcsx_rearmed_gpu_unai_pixel_skip",
1840          };
1841
1842          option_display.visible = show_advanced_gpu_unai_settings;
1843
1844          for (i = 0; i < 5; i++)
1845          {
1846             option_display.key = gpu_unai_option[i];
1847             environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
1848          }
1849       }
1850    }
1851 #endif // GPU_UNAI
1852
1853    if (in_flight) {
1854       // inform core things about possible config changes
1855       plugin_call_rearmed_cbs();
1856
1857       if (GPU_open != NULL && GPU_close != NULL) {
1858          GPU_close();
1859          GPU_open(&gpuDisp, "PCSX", NULL);
1860       }
1861
1862       dfinput_activate();
1863    }
1864    else
1865    {
1866       //not yet running
1867
1868       //bootlogo display hack
1869       if (found_bios) {
1870          var.value = "NULL";
1871          var.key = "pcsx_rearmed_show_bios_bootlogo";
1872          if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1873          {
1874             Config.SlowBoot = 0;
1875             rebootemu = 0;
1876             if (strcmp(var.value, "enabled") == 0)
1877             {
1878                Config.SlowBoot = 1;
1879                rebootemu = 1;
1880             }
1881          }
1882       }
1883 #ifndef DRC_DISABLE
1884       var.value = "NULL";
1885       var.key = "pcsx_rearmed_psxclock";
1886       if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1887       {
1888          int psxclock = atoi(var.value);
1889          cycle_multiplier = 10000 / psxclock;
1890       }
1891 #endif
1892    }
1893 }
1894
1895 // Taken from beetle-psx-libretro
1896 static uint16_t get_analog_button(int16_t ret, retro_input_state_t input_state_cb, int player_index, int id)
1897 {
1898         // NOTE: Analog buttons were added Nov 2017. Not all front-ends support this
1899         // feature (or pre-date it) so we need to handle this in a graceful way.
1900
1901         // First, try and get an analog value using the new libretro API constant
1902         uint16_t button = input_state_cb(player_index,
1903                                                                         RETRO_DEVICE_ANALOG,
1904                                                                         RETRO_DEVICE_INDEX_ANALOG_BUTTON,
1905                                                                         id);
1906         button = MIN(button / 128, 255);
1907
1908         if (button == 0)
1909         {
1910                 // If we got exactly zero, we're either not pressing the button, or the front-end
1911                 // is not reporting analog values. We need to do a second check using the classic
1912                 // digital API method, to at least get some response - better than nothing.
1913
1914                 // NOTE: If we're really just not holding the button, we're still going to get zero.
1915
1916                 button = (ret & (1 << id)) ? 255 : 0;
1917         }
1918
1919         return button;
1920 }
1921
1922 void retro_run(void)
1923 {
1924         int i;
1925         //SysReset must be run while core is running,Not in menu (Locks up Retroarch)
1926         if (rebootemu != 0) {
1927                 rebootemu = 0;
1928                 SysReset();
1929                 if (!Config.HLE && !Config.SlowBoot) {
1930                         // skip BIOS logos
1931                         psxRegs.pc = psxRegs.GPR.n.ra;
1932                 }
1933         }
1934
1935         if (display_internal_fps) {
1936                 frame_count++;
1937
1938                 if (frame_count % INTERNAL_FPS_SAMPLE_PERIOD == 0) {
1939                         unsigned internal_fps = pl_rearmed_cbs.flip_cnt * (is_pal_mode ? 50 : 60) / INTERNAL_FPS_SAMPLE_PERIOD;
1940                         char str[64];
1941                         const char *strc = (const char*)str;
1942                         struct retro_message msg =
1943                         {
1944                                 strc,
1945                                 180
1946                         };
1947
1948                         str[0] = '\0';
1949
1950                         snprintf(str, sizeof(str), "Internal FPS: %2d", internal_fps);
1951
1952                         pl_rearmed_cbs.flip_cnt = 0;
1953
1954                         environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &msg);
1955                 }
1956         }
1957    else
1958                 frame_count = 0;
1959
1960         input_poll_cb();
1961
1962         bool updated = false;
1963         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
1964                 update_variables(true);
1965
1966         // reset all keystate, query libretro for keystate
1967         int j;
1968         int lsx;
1969         int rsy;
1970         float negcon_twist_amplitude;
1971         int negcon_i_rs;
1972         int negcon_ii_rs;
1973         for(i = 0; i < PORTS_NUMBER; i++)
1974    {
1975       int16_t ret    = 0;
1976                 in_keystate[i] = 0;
1977
1978                 if (in_type[i] == PSE_PAD_TYPE_NONE)
1979                         continue;
1980
1981       if (libretro_supports_bitmasks)
1982          ret = input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
1983       else
1984       {
1985          unsigned j;
1986          for (j = 0; j < (RETRO_DEVICE_ID_JOYPAD_R3+1); j++)
1987          {
1988             if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, j))
1989                ret |= (1 << j);
1990          }
1991       }
1992
1993                 if (in_type[i] == PSE_PAD_TYPE_NEGCON)
1994                 {
1995                         // Query digital inputs
1996                         //
1997                         // > Pad-Up
1998                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_UP))
1999                                 in_keystate[i] |= (1 << DKEY_UP);
2000                         // > Pad-Right
2001                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT))
2002                                 in_keystate[i] |= (1 << DKEY_RIGHT);
2003                         // > Pad-Down
2004                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN))
2005                                 in_keystate[i] |= (1 << DKEY_DOWN);
2006                         // > Pad-Left
2007                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT))
2008                                 in_keystate[i] |= (1 << DKEY_LEFT);
2009                         // > Start
2010                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
2011                                 in_keystate[i] |= (1 << DKEY_START);
2012                         // > neGcon A
2013                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_A))
2014                                 in_keystate[i] |= (1 << DKEY_CIRCLE);
2015                         // > neGcon B
2016                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_X))
2017                                 in_keystate[i] |= (1 << DKEY_TRIANGLE);
2018                         // > neGcon R shoulder (digital)
2019                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_R))
2020                                 in_keystate[i] |= (1 << DKEY_R1);
2021                         // Query analog inputs
2022                         //
2023                         // From studying 'libpcsxcore/plugins.c' and 'frontend/plugin.c':
2024                         // >> pad->leftJoyX  == in_analog_left[i][0]  == NeGcon II
2025                         // >> pad->leftJoyY  == in_analog_left[i][1]  == NeGcon L
2026                         // >> pad->rightJoyX == in_analog_right[i][0] == NeGcon twist
2027                         // >> pad->rightJoyY == in_analog_right[i][1] == NeGcon I
2028                         // So we just have to map in_analog_left/right to more
2029                         // appropriate inputs...
2030                         //
2031                         // > NeGcon twist
2032                         // >> Get raw analog stick value and account for deadzone
2033                         lsx = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X);
2034                         if (lsx > negcon_deadzone)
2035                                 lsx = lsx - negcon_deadzone;
2036                         else if (lsx < -negcon_deadzone)
2037                                 lsx = lsx + negcon_deadzone;
2038                         else
2039                                 lsx = 0;
2040                         // >> Convert to an 'amplitude' [-1.0,1.0] and adjust response
2041                         negcon_twist_amplitude = (float)lsx / (float)(NEGCON_RANGE - negcon_deadzone);
2042                         if (negcon_linearity == 2)
2043          {
2044                                 if (negcon_twist_amplitude < 0.0)
2045                                         negcon_twist_amplitude = -(negcon_twist_amplitude * negcon_twist_amplitude);
2046             else
2047                                         negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude;
2048                         }
2049          else if (negcon_linearity == 3)
2050                                 negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude * negcon_twist_amplitude;
2051                         // >> Convert to final 'in_analog' integer value [0,255]
2052                         in_analog_right[i][0] = MAX(MIN((int)(negcon_twist_amplitude * 128.0f) + 128, 255), 0);
2053                         // > NeGcon I + II
2054                         // >> Handle right analog stick vertical axis mapping...
2055                         //    - Up (-Y) == accelerate == neGcon I
2056                         //    - Down (+Y) == brake == neGcon II
2057                         negcon_i_rs = 0;
2058                         negcon_ii_rs = 0;
2059                         rsy = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y);
2060                         if (rsy >= 0){
2061                                 // Account for deadzone
2062                                 // (Note: have never encountered a gamepad with significant differences
2063                                 // in deadzone between left/right analog sticks, so use the regular 'twist'
2064                                 // deadzone here)
2065                                 if (rsy > negcon_deadzone)
2066                                         rsy = rsy - negcon_deadzone;
2067             else
2068                                         rsy = 0;
2069                                 // Convert to 'in_analog' integer value [0,255]
2070                                 negcon_ii_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2071                         } else {
2072                                 if (rsy < -negcon_deadzone)
2073                                         rsy = -1 * (rsy + negcon_deadzone);
2074             else
2075                                         rsy = 0;
2076                                 negcon_i_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2077                         }
2078                         // >> NeGcon I
2079                         in_analog_right[i][1] = MAX(
2080                                 MAX(
2081                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_R2),
2082                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_B)
2083                                 ),
2084                                 negcon_i_rs
2085                         );
2086                         // >> NeGcon II
2087                         in_analog_left[i][0] = MAX(
2088                                 MAX(
2089                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L2),
2090                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_Y)
2091                                 ),
2092                                 negcon_ii_rs
2093                         );
2094                         // > NeGcon L
2095                         in_analog_left[i][1] = get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L);
2096                 }
2097                 else
2098                 {
2099                         // Query digital inputs
2100                         for (j = 0; j < RETRO_PSX_MAP_LEN; j++)
2101                                 if (ret & (1 << j))
2102                                         in_keystate[i] |= retro_psx_map[j];
2103
2104                         // Query analog inputs
2105                         if (in_type[i] == PSE_PAD_TYPE_ANALOGJOY || in_type[i] == PSE_PAD_TYPE_ANALOGPAD)
2106                         {
2107                                 in_analog_left[i][0] = MIN((input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X) / 255) + 128, 255);
2108                                 in_analog_left[i][1] = MIN((input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y) / 255) + 128, 255);
2109                                 in_analog_right[i][0] = MIN((input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X) / 255) + 128, 255);
2110                                 in_analog_right[i][1] = MIN((input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y) / 255) + 128, 255);
2111                         }
2112                 }
2113         }
2114
2115         stop = 0;
2116         psxCpu->Execute();
2117
2118         video_cb((vout_fb_dirty || !vout_can_dupe || !duping_enable) ? vout_buf_ptr : NULL,
2119                 vout_width, vout_height, vout_width * 2);
2120         vout_fb_dirty = 0;
2121
2122     set_vout_fb();
2123 }
2124
2125 static bool try_use_bios(const char *path)
2126 {
2127         FILE *f;
2128         long size;
2129         const char *name;
2130
2131         f = fopen(path, "rb");
2132         if (f == NULL)
2133                 return false;
2134
2135         fseek(f, 0, SEEK_END);
2136         size = ftell(f);
2137         fclose(f);
2138
2139         if (size != 512 * 1024)
2140                 return false;
2141
2142         name = strrchr(path, SLASH);
2143         if (name++ == NULL)
2144                 name = path;
2145         snprintf(Config.Bios, sizeof(Config.Bios), "%s", name);
2146         return true;
2147 }
2148
2149 #ifndef VITA
2150 #include <sys/types.h>
2151 #include <dirent.h>
2152
2153 static bool find_any_bios(const char *dirpath, char *path, size_t path_size)
2154 {
2155         DIR *dir;
2156         struct dirent *ent;
2157         bool ret = false;
2158
2159         dir = opendir(dirpath);
2160         if (dir == NULL)
2161                 return false;
2162
2163         while ((ent = readdir(dir))) {
2164                 if (strncasecmp(ent->d_name, "scph", 4) != 0)
2165                         continue;
2166
2167                 snprintf(path, path_size, "%s%c%s", dirpath, SLASH, ent->d_name);
2168                 ret = try_use_bios(path);
2169                 if (ret)
2170                         break;
2171         }
2172         closedir(dir);
2173         return ret;
2174 }
2175 #else
2176 #define find_any_bios(...) false
2177 #endif
2178
2179 static void check_system_specs(void)
2180 {
2181    unsigned level = 6;
2182    environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
2183 }
2184
2185 static int init_memcards(void)
2186 {
2187         int ret = 0;
2188         const char *dir;
2189         struct retro_variable var = { .key="pcsx_rearmed_memcard2", .value=NULL };
2190         static const char CARD2_FILE[] = "pcsx-card2.mcd";
2191
2192         // Memcard2 will be handled and is re-enabled if needed using core
2193         // operations.
2194         // Memcard1 is handled by libretro, doing this will set core to
2195         // skip file io operations for memcard1 like SaveMcd
2196         snprintf(Config.Mcd1, sizeof(Config.Mcd1), "none");
2197         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "none");
2198         init_memcard(Mcd1Data);
2199         // Memcard 2 is managed by the emulator on the filesystem,
2200         // There is no need to initialize Mcd2Data like Mcd1Data.
2201
2202         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2203                 SysPrintf("Memcard 2: %s\n", var.value);
2204                 if (memcmp(var.value, "enabled", 7) == 0) {
2205                         if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir) {
2206                                 if (strlen(dir) + strlen(CARD2_FILE) + 2 > sizeof(Config.Mcd2)) {
2207                                         SysPrintf("Path '%s' is too long. Cannot use memcard 2. Use a shorter path.\n", dir);
2208                                         ret = -1;
2209                                 } else {
2210                                         McdDisable[1] = 0;
2211                                         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "%s/%s", dir, CARD2_FILE);
2212                                         SysPrintf("Use memcard 2: %s\n", Config.Mcd2);
2213                                 }
2214                         } else {
2215                                 SysPrintf("Could not get save directory! Could not create memcard 2.");
2216                                 ret = -1;
2217                         }
2218                 }
2219         }
2220         return ret;
2221 }
2222
2223 static void loadPSXBios(void)
2224 {
2225         const char *dir;
2226         char path[256];
2227         unsigned useHLE = 0;
2228
2229         const char *bios[] = {
2230                 "SCPH101", "scph101",
2231                 "SCPH5501", "scph5501",
2232                 "SCPH7001", "scph7001",
2233                 "SCPH1001", "scph1001"
2234         };
2235
2236         struct retro_variable var = {
2237                 .key = "pcsx_rearmed_bios",
2238                 .value = NULL
2239         };
2240
2241         found_bios = 0;
2242
2243         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2244                 if (!strcmp(var.value, "HLE"))
2245                         useHLE = 1;
2246         }
2247
2248         if (!useHLE)
2249         {
2250                 if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
2251                 {
2252                         unsigned i;
2253                         snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s", dir);
2254
2255                         for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) {
2256                                 snprintf(path, sizeof(path), "%s%c%s.bin", dir, SLASH, bios[i]);
2257                                 found_bios = try_use_bios(path);
2258                                 if (found_bios)
2259                                         break;
2260                         }
2261
2262                         if (!found_bios)
2263                                 found_bios = find_any_bios(dir, path, sizeof(path));
2264                 }
2265                 if (found_bios) {
2266                         SysPrintf("found BIOS file: %s\n", Config.Bios);
2267                 }
2268         }
2269
2270         if (useHLE || !found_bios)
2271         {
2272                 SysPrintf("no BIOS files found.\n");
2273                 struct retro_message msg =
2274                 {
2275                         "No PlayStation BIOS file found - add for better compatibility",
2276                         180
2277                 };
2278                 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, (void*)&msg);
2279         }
2280 }
2281
2282 void retro_init(void)
2283 {
2284         struct retro_rumble_interface rumble;
2285         int ret;
2286
2287 #ifdef __MACH__
2288         // magic sauce to make the dynarec work on iOS
2289         syscall(SYS_ptrace, 0 /*PTRACE_TRACEME*/, 0, 0, 0);
2290 #endif
2291
2292 #ifdef _3DS
2293    psxMapHook = pl_3ds_mmap;
2294    psxUnmapHook = pl_3ds_munmap;
2295 #endif
2296 #ifdef VITA
2297    if(init_vita_mmap()<0)
2298       abort();
2299    psxMapHook = pl_vita_mmap;
2300    psxUnmapHook = pl_vita_munmap;
2301 #endif
2302         ret = emu_core_preinit();
2303 #ifdef _3DS
2304    /* emu_core_preinit sets the cpu to dynarec */
2305    if(!__ctr_svchax)
2306       Config.Cpu = CPU_INTERPRETER;
2307 #endif
2308         ret |= init_memcards();
2309
2310         ret |= emu_core_init();
2311         if (ret != 0) {
2312                 SysPrintf("PCSX init failed.\n");
2313                 exit(1);
2314         }
2315
2316 #ifdef _3DS
2317    vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80);
2318 #elif defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L) && !defined(VITA)
2319         posix_memalign(&vout_buf, 16, VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2320 #else
2321         vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2322 #endif
2323
2324         vout_buf_ptr = vout_buf;
2325
2326         loadPSXBios();
2327
2328         environ_cb(RETRO_ENVIRONMENT_GET_CAN_DUPE, &vout_can_dupe);
2329         environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control);
2330
2331         rumble_cb = NULL;
2332         if (environ_cb(RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE, &rumble))
2333                 rumble_cb = rumble.set_rumble_state;
2334
2335         /* Set how much slower PSX CPU runs * 100 (so that 200 is 2 times)
2336          * we have to do this because cache misses and some IO penalties
2337          * are not emulated. Warning: changing this may break compatibility. */
2338         cycle_multiplier = 175;
2339 #ifdef HAVE_PRE_ARMV7
2340         cycle_multiplier = 200;
2341 #endif
2342         pl_rearmed_cbs.gpu_peops.iUseDither = 1;
2343    pl_rearmed_cbs.gpu_peops.dwActFixes = 1 << 7;
2344         spu_config.iUseFixedUpdates = 1;
2345
2346         SaveFuncs.open = save_open;
2347         SaveFuncs.read = save_read;
2348         SaveFuncs.write = save_write;
2349         SaveFuncs.seek = save_seek;
2350         SaveFuncs.close = save_close;
2351
2352    if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL))
2353       libretro_supports_bitmasks = true;
2354
2355         update_variables(false);
2356         check_system_specs();
2357 }
2358
2359 void retro_deinit(void)
2360 {
2361         SysClose();
2362 #ifdef _3DS
2363    linearFree(vout_buf);
2364 #else
2365         free(vout_buf);
2366 #endif
2367         vout_buf = NULL;
2368
2369 #ifdef VITA
2370   deinit_vita_mmap();
2371 #endif
2372    libretro_supports_bitmasks = false;
2373 }
2374
2375 #ifdef VITA
2376 #include <psp2/kernel/threadmgr.h>
2377 int usleep (unsigned long us)
2378 {
2379    sceKernelDelayThread(us);
2380 }
2381 #endif
2382
2383 void SysPrintf(const char *fmt, ...) {
2384         va_list list;
2385         char msg[512];
2386
2387         va_start(list, fmt);
2388         vsprintf(msg, fmt, list);
2389         va_end(list);
2390
2391         if (log_cb)
2392                 log_cb(RETRO_LOG_INFO, "%s", msg);
2393 }