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