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 #define GPU_PEOPS_ODD_EVEN_BIT         (1 << 0)
 139 #define GPU_PEOPS_EXPAND_SCREEN_WIDTH  (1 << 1)
 140 #define GPU_PEOPS_IGNORE_BRIGHTNESS    (1 << 2)
 141 #define GPU_PEOPS_DISABLE_COORD_CHECK  (1 << 3)
 142 #define GPU_PEOPS_LAZY_SCREEN_UPDATE   (1 << 6)
 143 #define GPU_PEOPS_OLD_FRAME_SKIP       (1 << 7)
 144 #define GPU_PEOPS_REPEATED_TRIANGLES   (1 << 8)
 145 #define GPU_PEOPS_QUADS_WITH_TRIANGLES (1 << 9)
 146 #define GPU_PEOPS_FAKE_BUSY_STATE      (1 << 10)
 147
 148 static void init_memcard(char *mcd_data)
 149 {
 150         unsigned off = 0;
 151         unsigned i;
 152
 153         memset(mcd_data, 0, MCD_SIZE);
 154
 155         mcd_data[off++] = 'M';
 156         mcd_data[off++] = 'C';
 157         off += 0x7d;
 158         mcd_data[off++] = 0x0e;
 159
 160         for (i = 0; i < 15; i++) {
 161                 mcd_data[off++] = 0xa0;
 162                 off += 0x07;
 163                 mcd_data[off++] = 0xff;
 164                 mcd_data[off++] = 0xff;
 165                 off += 0x75;
 166                 mcd_data[off++] = 0xa0;
 167         }
 168
 169         for (i = 0; i < 20; i++) {
 170                 mcd_data[off++] = 0xff;
 171                 mcd_data[off++] = 0xff;
 172                 mcd_data[off++] = 0xff;
 173                 mcd_data[off++] = 0xff;
 174                 off += 0x04;
 175                 mcd_data[off++] = 0xff;
 176                 mcd_data[off++] = 0xff;
 177                 off += 0x76;
 178         }
 179 }
 180
 181 static void set_vout_fb()
 182 {
 183   struct retro_framebuffer fb = {0};
 184
 185   fb.width           = vout_width;
 186   fb.height          = vout_height;
 187   fb.access_flags    = RETRO_MEMORY_ACCESS_WRITE;
 188
 189   if (environ_cb(RETRO_ENVIRONMENT_GET_CURRENT_SOFTWARE_FRAMEBUFFER, &fb) && fb.format == RETRO_PIXEL_FORMAT_RGB565)
 190      vout_buf_ptr = (uint16_t*)fb.data;
 191   else
 192      vout_buf_ptr = vout_buf;
 193 }
 194
 195 static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
 196 {
 197   vout_width = w;
 198   vout_height = h;
 199
 200         if (previous_width != vout_width || previous_height != vout_height)
 201         {
 202                 previous_width = vout_width;
 203                 previous_height = vout_height;
 204
 205         struct retro_system_av_info info;
 206         retro_get_system_av_info(&info);
 207         environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &info.geometry);
 208         }
 209
 210   set_vout_fb();
 211 }
 212
 213 #ifndef FRONTEND_SUPPORTS_RGB565
 214 static void convert(void *buf, size_t bytes)
 215 {
 216         unsigned int i, v, *p = buf;
 217
 218         for (i = 0; i < bytes / 4; i++) {
 219                 v = p[i];
 220                 p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
 221         }
 222 }
 223 #endif
 224
 225 static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
 226 {
 227         unsigned short *dest = vout_buf_ptr;
 228         const unsigned short *src = vram;
 229         int dstride = vout_width, h1 = h;
 230         int doffs;
 231
 232         if (vram == NULL) {
 233                 // blanking
 234                 memset(vout_buf_ptr, 0, dstride * h * 2);
 235                 goto out;
 236         }
 237
 238         doffs = (vout_height - h) * dstride;
 239         doffs += (dstride - w) / 2 & ~1;
 240         if (doffs != vout_doffs_old) {
 241                 // clear borders
 242                 memset(vout_buf_ptr, 0, dstride * h * 2);
 243                 vout_doffs_old = doffs;
 244         }
 245         dest += doffs;
 246
 247         if (bgr24)
 248         {
 249                 // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
 250                 for (; h1-- > 0; dest += dstride, src += stride)
 251                 {
 252                         bgr888_to_rgb565(dest, src, w * 3);
 253                 }
 254         }
 255         else
 256         {
 257                 for (; h1-- > 0; dest += dstride, src += stride)
 258                 {
 259                         bgr555_to_rgb565(dest, src, w * 2);
 260                 }
 261         }
 262
 263 out:
 264 #ifndef FRONTEND_SUPPORTS_RGB565
 265         convert(vout_buf_ptr, vout_width * vout_height * 2);
 266 #endif
 267         vout_fb_dirty = 1;
 268         pl_rearmed_cbs.flip_cnt++;
 269 }
 270
 271 #ifdef _3DS
 272 typedef struct
 273 {
 274    void* buffer;
 275    uint32_t target_map;
 276    size_t size;
 277    enum psxMapTag tag;
 278 }psx_map_t;
 279
 280 psx_map_t custom_psx_maps[] = {
 281    {NULL, 0x13000000, 0x210000, MAP_TAG_RAM},   // 0x80000000
 282    {NULL, 0x12800000, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 283    {NULL, 0x12c00000, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 284    {NULL, 0x11000000, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 285    {NULL, 0x12000000, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 286 };
 287
 288 void* pl_3ds_mmap(unsigned long addr, size_t size, int is_fixed,
 289         enum psxMapTag tag)
 290 {
 291    (void)is_fixed;
 292    (void)addr;
 293
 294    if (__ctr_svchax)
 295    {
 296       psx_map_t* custom_map = custom_psx_maps;
 297
 298       for (; custom_map->size; custom_map++)
 299       {
 300          if ((custom_map->size == size) && (custom_map->tag == tag))
 301          {
 302             uint32_t ptr_aligned, tmp;
 303
 304             custom_map->buffer = malloc(size + 0x1000);
 305             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 306
 307             if(svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_MAP, 0x3) < 0)
 308             {
 309                SysPrintf("could not map memory @0x%08X\n", custom_map->target_map);
 310                exit(1);
 311             }
 312
 313             return (void*)custom_map->target_map;
 314          }
 315       }
 316    }
 317
 318    return malloc(size);
 319 }
 320
 321 void pl_3ds_munmap(void *ptr, size_t size, enum psxMapTag tag)
 322 {
 323    (void)tag;
 324
 325    if (__ctr_svchax)
 326    {
 327       psx_map_t* custom_map = custom_psx_maps;
 328
 329       for (; custom_map->size; custom_map++)
 330       {
 331          if ((custom_map->target_map == (uint32_t)ptr))
 332          {
 333             uint32_t ptr_aligned, tmp;
 334
 335             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 336
 337             svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0x3);
 338
 339             free(custom_map->buffer);
 340             custom_map->buffer = NULL;
 341             return;
 342          }
 343       }
 344    }
 345
 346    free(ptr);
 347 }
 348 #endif
 349
 350 #ifdef VITA
 351 typedef struct
 352 {
 353    void* buffer;
 354    uint32_t target_map;
 355    size_t size;
 356    enum psxMapTag tag;
 357 }psx_map_t;
 358
 359 void* addr = NULL;
 360
 361 psx_map_t custom_psx_maps[] = {
 362    {NULL, NULL, 0x210000, MAP_TAG_RAM},   // 0x80000000
 363    {NULL, NULL, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 364    {NULL, NULL, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 365    {NULL, NULL, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 366    {NULL, NULL, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 367 };
 368
 369 int init_vita_mmap(){
 370   int n;
 371   void * tmpaddr;
 372   addr = malloc(64*1024*1024);
 373   if(addr==NULL)
 374     return -1;
 375   tmpaddr = ((u32)(addr+0xFFFFFF))&~0xFFFFFF;
 376   custom_psx_maps[0].buffer=tmpaddr+0x2000000;
 377   custom_psx_maps[1].buffer=tmpaddr+0x1800000;
 378   custom_psx_maps[2].buffer=tmpaddr+0x1c00000;
 379   custom_psx_maps[3].buffer=tmpaddr+0x0000000;
 380   custom_psx_maps[4].buffer=tmpaddr+0x1000000;
 381 #if 0
 382   for(n = 0; n < 5; n++){
 383     sceClibPrintf("addr reserved %x\n",custom_psx_maps[n].buffer);
 384   }
 385 #endif
 386   return 0;
 387 }
 388
 389 void deinit_vita_mmap(){
 390   free(addr);
 391 }
 392
 393 void* pl_vita_mmap(unsigned long addr, size_t size, int is_fixed,
 394         enum psxMapTag tag)
 395 {
 396    (void)is_fixed;
 397    (void)addr;
 398
 399
 400     psx_map_t* custom_map = custom_psx_maps;
 401
 402     for (; custom_map->size; custom_map++)
 403     {
 404        if ((custom_map->size == size) && (custom_map->tag == tag))
 405        {
 406           return custom_map->buffer;
 407        }
 408     }
 409
 410
 411    return malloc(size);
 412 }
 413
 414 void pl_vita_munmap(void *ptr, size_t size, enum psxMapTag tag)
 415 {
 416    (void)tag;
 417
 418    psx_map_t* custom_map = custom_psx_maps;
 419
 420   for (; custom_map->size; custom_map++)
 421   {
 422      if ((custom_map->buffer == ptr))
 423      {
 424         return;
 425      }
 426   }
 427
 428    free(ptr);
 429 }
 430 #endif
 431
 432 static void *pl_mmap(unsigned int size)
 433 {
 434         return psxMap(0, size, 0, MAP_TAG_VRAM);
 435 }
 436
 437 static void pl_munmap(void *ptr, unsigned int size)
 438 {
 439         psxUnmap(ptr, size, MAP_TAG_VRAM);
 440 }
 441
 442 struct rearmed_cbs pl_rearmed_cbs = {
 443         .pl_vout_open = vout_open,
 444         .pl_vout_set_mode = vout_set_mode,
 445         .pl_vout_flip = vout_flip,
 446         .pl_vout_close = vout_close,
 447         .mmap = pl_mmap,
 448         .munmap = pl_munmap,
 449         /* from psxcounters */
 450         .gpu_hcnt = &hSyncCount,
 451         .gpu_frame_count = &frame_counter,
 452 };
 453
 454 void pl_frame_limit(void)
 455 {
 456         /* called once per frame, make psxCpu->Execute() above return */
 457         stop = 1;
 458 }
 459
 460 void pl_timing_prepare(int is_pal)
 461 {
 462         is_pal_mode = is_pal;
 463 }
 464
 465 void plat_trigger_vibrate(int pad, int low, int high)
 466 {
 467         if (!rumble_cb)
 468                 return;
 469
 470         if (in_enable_vibration)
 471         {
 472                 rumble_cb(pad, RETRO_RUMBLE_STRONG, high << 8);
 473                 rumble_cb(pad, RETRO_RUMBLE_WEAK, low ? 0xffff : 0x0);
 474     }
 475 }
 476
 477 void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in)
 478 {
 479 }
 480
 481 /* sound calls */
 482 static void snd_feed(void *buf, int bytes)
 483 {
 484         if (audio_batch_cb != NULL)
 485                 audio_batch_cb(buf, bytes / 4);
 486 }
 487
 488 void out_register_libretro(struct out_driver *drv)
 489 {
 490         drv->name = "libretro";
 491         drv->init = snd_init;
 492         drv->finish = snd_finish;
 493         drv->busy = snd_busy;
 494         drv->feed = snd_feed;
 495 }
 496
 497 /* libretro */
 498 void retro_set_environment(retro_environment_t cb)
 499 {
 500    environ_cb = cb;
 501
 502    if (cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &logging))
 503       log_cb = logging.log;
 504
 505    libretro_set_core_options(environ_cb);
 506 }
 507
 508 void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
 509 void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
 510 void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
 511 void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
 512 void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
 513
 514 unsigned retro_api_version(void)
 515 {
 516         return RETRO_API_VERSION;
 517 }
 518
 519 static int controller_port_variable(unsigned port, struct retro_variable *var)
 520 {
 521         if (port >= PORTS_NUMBER)
 522                 return 0;
 523
 524         if (!environ_cb)
 525                 return 0;
 526
 527         var->value = NULL;
 528         switch (port) {
 529         case 0:
 530                 var->key = "pcsx_rearmed_pad1type";
 531                 break;
 532         case 1:
 533                 var->key = "pcsx_rearmed_pad2type";
 534                 break;
 535         case 2:
 536                 var->key = "pcsx_rearmed_pad3type";
 537                 break;
 538         case 3:
 539                 var->key = "pcsx_rearmed_pad4type";
 540                 break;
 541         case 4:
 542                 var->key = "pcsx_rearmed_pad5type";
 543                 break;
 544         case 5:
 545                 var->key = "pcsx_rearmed_pad6type";
 546                 break;
 547         case 6:
 548                 var->key = "pcsx_rearmed_pad7type";
 549                 break;
 550         case 7:
 551                 var->key = "pcsx_rearmed_pad8type";
 552                 break;
 553         }
 554
 555         return environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, var) || var->value;
 556 }
 557
 558 static void update_controller_port_variable(unsigned port)
 559 {
 560         if (port >= PORTS_NUMBER)
 561                 return;
 562
 563         struct retro_variable var;
 564
 565         if (controller_port_variable(port, &var))
 566         {
 567                 if (strcmp(var.value, "standard") == 0)
 568                         in_type[port] = PSE_PAD_TYPE_STANDARD;
 569                 else if (strcmp(var.value, "analog") == 0)
 570                         in_type[port] = PSE_PAD_TYPE_ANALOGJOY;
 571                 else if (strcmp(var.value, "dualshock") == 0)
 572                         in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 573                 else if (strcmp(var.value, "negcon") == 0)
 574                         in_type[port] = PSE_PAD_TYPE_NEGCON;
 575                 else if (strcmp(var.value, "none") == 0)
 576                         in_type[port] = PSE_PAD_TYPE_NONE;
 577                 // else 'default' case, do nothing
 578         }
 579 }
 580
 581 static void update_controller_port_device(unsigned port, unsigned device)
 582 {
 583         if (port >= PORTS_NUMBER)
 584                 return;
 585
 586         struct retro_variable var;
 587
 588         if (!controller_port_variable(port, &var))
 589                 return;
 590
 591         if (strcmp(var.value, "default") != 0)
 592                 return;
 593
 594         switch (device)
 595         {
 596         case RETRO_DEVICE_JOYPAD:
 597                 in_type[port] = PSE_PAD_TYPE_STANDARD;
 598                 break;
 599         case RETRO_DEVICE_ANALOG:
 600                 in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 601                 break;
 602         case RETRO_DEVICE_MOUSE:
 603                 in_type[port] = PSE_PAD_TYPE_MOUSE;
 604                 break;
 605         case RETRO_DEVICE_LIGHTGUN:
 606                 in_type[port] = PSE_PAD_TYPE_GUN;
 607                 break;
 608         case RETRO_DEVICE_NONE:
 609         default:
 610                 in_type[port] = PSE_PAD_TYPE_NONE;
 611         }
 612 }
 613
 614 static void update_multitap()
 615 {
 616         struct retro_variable var;
 617         int auto_case, port;
 618
 619         var.value = NULL;
 620         var.key = "pcsx_rearmed_multitap1";
 621         auto_case = 0;
 622         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 623         {
 624                 if (strcmp(var.value, "enabled") == 0)
 625                         multitap1 = 1;
 626                 else if (strcmp(var.value, "disabled") == 0)
 627                         multitap1 = 0;
 628                 else // 'auto' case
 629                         auto_case = 1;
 630         }
 631         else
 632                 auto_case = 1;
 633
 634         if (auto_case)
 635         {
 636                 // If a gamepad is plugged after port 2, we need a first multitap.
 637                 multitap1 = 0;
 638                 for (port = 2; port < PORTS_NUMBER; port++)
 639                         multitap1 |= in_type[port] != PSE_PAD_TYPE_NONE;
 640         }
 641
 642         var.value = NULL;
 643         var.key = "pcsx_rearmed_multitap2";
 644         auto_case = 0;
 645         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 646         {
 647                 if (strcmp(var.value, "enabled") == 0)
 648                         multitap2 = 1;
 649                 else if (strcmp(var.value, "disabled") == 0)
 650                         multitap2 = 0;
 651                 else // 'auto' case
 652                         auto_case = 1;
 653         }
 654         else
 655                 auto_case = 1;
 656
 657         if (auto_case)
 658         {
 659                 // If a gamepad is plugged after port 4, we need a second multitap.
 660                 multitap2 = 0;
 661                 for (port = 4; port < PORTS_NUMBER; port++)
 662                         multitap2 |= in_type[port] != PSE_PAD_TYPE_NONE;
 663         }
 664 }
 665
 666 void retro_set_controller_port_device(unsigned port, unsigned device)
 667 {
 668         SysPrintf("port %u  device %u",port,device);
 669
 670         if (port >= PORTS_NUMBER)
 671                 return;
 672
 673         update_controller_port_device(port, device);
 674         update_multitap();
 675 }
 676
 677 void retro_get_system_info(struct retro_system_info *info)
 678 {
 679         memset(info, 0, sizeof(*info));
 680         info->library_name = "PCSX-ReARMed";
 681 #ifndef GIT_VERSION
 682 #define GIT_VERSION ""
 683 #endif
 684         info->library_version = "r22" GIT_VERSION;
 685         info->valid_extensions = "bin|cue|img|mdf|pbp|toc|cbn|m3u|chd";
 686         info->need_fullpath = true;
 687 }
 688
 689 void retro_get_system_av_info(struct retro_system_av_info *info)
 690 {
 691
 692         unsigned geom_height = vout_height > 0 ? vout_height : 240;
 693         unsigned geom_width = vout_width > 0 ? vout_width : 320;
 694
 695         memset(info, 0, sizeof(*info));
 696         info->timing.fps            = is_pal_mode ? 50 : 60;
 697         info->timing.sample_rate    = 44100;
 698         info->geometry.base_width   = geom_width;
 699         info->geometry.base_height  = geom_height;
 700         info->geometry.max_width    = VOUT_MAX_WIDTH;
 701         info->geometry.max_height   = VOUT_MAX_HEIGHT;
 702         info->geometry.aspect_ratio = 4.0 / 3.0;
 703 }
 704
 705 /* savestates */
 706 size_t retro_serialize_size(void)
 707 {
 708         // it's currently 4380651-4397047 bytes,
 709         // but have some reserved for future
 710         return 0x440000;
 711 }
 712
 713 struct save_fp {
 714         char *buf;
 715         size_t pos;
 716         int is_write;
 717 };
 718
 719 static void *save_open(const char *name, const char *mode)
 720 {
 721         struct save_fp *fp;
 722
 723         if (name == NULL || mode == NULL)
 724                 return NULL;
 725
 726         fp = malloc(sizeof(*fp));
 727         if (fp == NULL)
 728                 return NULL;
 729
 730         fp->buf = (char *)name;
 731         fp->pos = 0;
 732         fp->is_write = (mode[0] == 'w' || mode[1] == 'w');
 733
 734         return fp;
 735 }
 736
 737 static int save_read(void *file, void *buf, u32 len)
 738 {
 739         struct save_fp *fp = file;
 740         if (fp == NULL || buf == NULL)
 741                 return -1;
 742
 743         memcpy(buf, fp->buf + fp->pos, len);
 744         fp->pos += len;
 745         return len;
 746 }
 747
 748 static int save_write(void *file, const void *buf, u32 len)
 749 {
 750         struct save_fp *fp = file;
 751         if (fp == NULL || buf == NULL)
 752                 return -1;
 753
 754         memcpy(fp->buf + fp->pos, buf, len);
 755         fp->pos += len;
 756         return len;
 757 }
 758
 759 static long save_seek(void *file, long offs, int whence)
 760 {
 761         struct save_fp *fp = file;
 762         if (fp == NULL)
 763                 return -1;
 764
 765         switch (whence) {
 766         case SEEK_CUR:
 767                 fp->pos += offs;
 768                 return fp->pos;
 769         case SEEK_SET:
 770                 fp->pos = offs;
 771                 return fp->pos;
 772         default:
 773                 return -1;
 774         }
 775 }
 776
 777 static void save_close(void *file)
 778 {
 779         struct save_fp *fp = file;
 780         size_t r_size = retro_serialize_size();
 781         if (fp == NULL)
 782                 return;
 783
 784         if (fp->pos > r_size)
 785                 SysPrintf("ERROR: save buffer overflow detected\n");
 786         else if (fp->is_write && fp->pos < r_size)
 787                 // make sure we don't save trash in leftover space
 788                 memset(fp->buf + fp->pos, 0, r_size - fp->pos);
 789         free(fp);
 790 }
 791
 792 bool retro_serialize(void *data, size_t size)
 793 {
 794         int ret = SaveState(data);
 795         return ret == 0 ? true : false;
 796 }
 797
 798 bool retro_unserialize(const void *data, size_t size)
 799 {
 800         int ret = LoadState(data);
 801         return ret == 0 ? true : false;
 802 }
 803
 804 /* cheats */
 805 void retro_cheat_reset(void)
 806 {
 807         ClearAllCheats();
 808 }
 809
 810 void retro_cheat_set(unsigned index, bool enabled, const char *code)
 811 {
 812         char buf[256];
 813         int ret;
 814
 815         // cheat funcs are destructive, need a copy..
 816         strncpy(buf, code, sizeof(buf));
 817         buf[sizeof(buf) - 1] = 0;
 818
 819         //Prepare buffered cheat for PCSX's AddCheat fucntion.
 820         int cursor=0;
 821         int nonhexdec=0;
 822         while (buf[cursor]){
 823                 if (!(ISHEXDEC)){
 824                         if (++nonhexdec%2){
 825                                 buf[cursor]=' ';
 826                         } else {
 827                                 buf[cursor]='\n';
 828                         }
 829                 }
 830                 cursor++;
 831         }
 832
 833
 834         if (index < NumCheats)
 835                 ret = EditCheat(index, "", buf);
 836         else
 837                 ret = AddCheat("", buf);
 838
 839         if (ret != 0)
 840                 SysPrintf("Failed to set cheat %#u\n", index);
 841         else if (index < NumCheats)
 842                 Cheats[index].Enabled = enabled;
 843 }
 844
 845 /* multidisk support */
 846 static bool disk_ejected;
 847 static unsigned int disk_current_index;
 848 static unsigned int disk_count;
 849 static struct disks_state {
 850         char *fname;
 851         int internal_index; // for multidisk eboots
 852 } disks[8];
 853
 854 static bool disk_set_eject_state(bool ejected)
 855 {
 856         // weird PCSX API..
 857         SetCdOpenCaseTime(ejected ? -1 : (time(NULL) + 2));
 858         LidInterrupt();
 859
 860         disk_ejected = ejected;
 861         return true;
 862 }
 863
 864 static bool disk_get_eject_state(void)
 865 {
 866         /* can't be controlled by emulated software */
 867         return disk_ejected;
 868 }
 869
 870 static unsigned int disk_get_image_index(void)
 871 {
 872         return disk_current_index;
 873 }
 874
 875 static bool disk_set_image_index(unsigned int index)
 876 {
 877         if (index >= sizeof(disks) / sizeof(disks[0]))
 878                 return false;
 879
 880         CdromId[0] = '\0';
 881         CdromLabel[0] = '\0';
 882
 883         if (disks[index].fname == NULL) {
 884                 SysPrintf("missing disk #%u\n", index);
 885                 CDR_shutdown();
 886
 887                 // RetroArch specifies "no disk" with index == count,
 888                 // so don't fail here..
 889                 disk_current_index = index;
 890                 return true;
 891         }
 892
 893         SysPrintf("switching to disk %u: \"%s\" #%d\n", index,
 894                 disks[index].fname, disks[index].internal_index);
 895
 896         cdrIsoMultidiskSelect = disks[index].internal_index;
 897         set_cd_image(disks[index].fname);
 898         if (ReloadCdromPlugin() < 0) {
 899                 SysPrintf("failed to load cdr plugin\n");
 900                 return false;
 901         }
 902         if (CDR_open() < 0) {
 903                 SysPrintf("failed to open cdr plugin\n");
 904                 return false;
 905         }
 906
 907         if (!disk_ejected) {
 908                 SetCdOpenCaseTime(time(NULL) + 2);
 909                 LidInterrupt();
 910         }
 911
 912         disk_current_index = index;
 913         return true;
 914 }
 915
 916 static unsigned int disk_get_num_images(void)
 917 {
 918         return disk_count;
 919 }
 920
 921 static bool disk_replace_image_index(unsigned index,
 922         const struct retro_game_info *info)
 923 {
 924         char *old_fname;
 925         bool ret = true;
 926
 927         if (index >= sizeof(disks) / sizeof(disks[0]))
 928                 return false;
 929
 930         old_fname = disks[index].fname;
 931         disks[index].fname = NULL;
 932         disks[index].internal_index = 0;
 933
 934         if (info != NULL) {
 935                 disks[index].fname = strdup(info->path);
 936                 if (index == disk_current_index)
 937                         ret = disk_set_image_index(index);
 938         }
 939
 940         if (old_fname != NULL)
 941                 free(old_fname);
 942
 943         return ret;
 944 }
 945
 946 static bool disk_add_image_index(void)
 947 {
 948         if (disk_count >= 8)
 949                 return false;
 950
 951         disk_count++;
 952         return true;
 953 }
 954
 955 static struct retro_disk_control_callback disk_control = {
 956         .set_eject_state = disk_set_eject_state,
 957         .get_eject_state = disk_get_eject_state,
 958         .get_image_index = disk_get_image_index,
 959         .set_image_index = disk_set_image_index,
 960         .get_num_images = disk_get_num_images,
 961         .replace_image_index = disk_replace_image_index,
 962         .add_image_index = disk_add_image_index,
 963 };
 964
 965 // just in case, maybe a win-rt port in the future?
 966 #ifdef _WIN32
 967 #define SLASH '\\'
 968 #else
 969 #define SLASH '/'
 970 #endif
 971
 972 #ifndef PATH_MAX
 973 #define PATH_MAX  4096
 974 #endif
 975
 976 static char base_dir[1024];
 977
 978 static bool read_m3u(const char *file)
 979 {
 980         char line[1024];
 981         char name[PATH_MAX];
 982         FILE *f = fopen(file, "r");
 983         if (!f)
 984                 return false;
 985
 986         while (fgets(line, sizeof(line), f) && disk_count < sizeof(disks) / sizeof(disks[0])) {
 987                 if (line[0] == '#')
 988                         continue;
 989                 char *carrige_return = strchr(line, '\r');
 990                 if (carrige_return)
 991                         *carrige_return = '\0';
 992                 char *newline = strchr(line, '\n');
 993                 if (newline)
 994                         *newline = '\0';
 995
 996                 if (line[0] != '\0')
 997                 {
 998                         snprintf(name, sizeof(name), "%s%c%s", base_dir, SLASH, line);
 999                         disks[disk_count++].fname = strdup(name);
1000                 }
1001         }
1002
1003         fclose(f);
1004         return (disk_count != 0);
1005 }
1006
1007 static void extract_directory(char *buf, const char *path, size_t size)
1008 {
1009    char *base;
1010    strncpy(buf, path, size - 1);
1011    buf[size - 1] = '\0';
1012
1013    base = strrchr(buf, '/');
1014    if (!base)
1015       base = strrchr(buf, '\\');
1016
1017    if (base)
1018       *base = '\0';
1019    else
1020    {
1021       buf[0] = '.';
1022       buf[1] = '\0';
1023    }
1024 }
1025
1026 #if defined(__QNX__) || defined(_WIN32)
1027 /* Blackberry QNX doesn't have strcasestr */
1028
1029 /*
1030  * Find the first occurrence of find in s, ignore case.
1031  */
1032 char *
1033 strcasestr(const char *s, const char*find)
1034 {
1035         char c, sc;
1036         size_t len;
1037
1038         if ((c = *find++) != 0) {
1039                 c = tolower((unsigned char)c);
1040                 len = strlen(find);
1041                 do {
1042                         do {
1043                                 if ((sc = *s++) == 0)
1044                                         return (NULL);
1045                         } while ((char)tolower((unsigned char)sc) != c);
1046                 } while (strncasecmp(s, find, len) != 0);
1047                 s--;
1048         }
1049         return ((char *)s);
1050 }
1051 #endif
1052
1053 bool retro_load_game(const struct retro_game_info *info)
1054 {
1055         size_t i;
1056         bool is_m3u = (strcasestr(info->path, ".m3u") != NULL);
1057
1058    struct retro_input_descriptor desc[] = {
1059       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1060       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1061       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1062       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1063       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1064       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1065       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1066       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1067       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1068       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1069       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1070       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1071       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1072       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1073       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1074       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1075       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1076       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1077       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1078       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1079
1080
1081       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1082       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1083       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1084       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1085       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1086       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1087       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1088       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1089       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1090       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1091       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1092       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1093       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1094       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1095       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1096       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1097       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1098       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1099       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1100       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1101
1102       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1103       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1104       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1105       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1106       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1107       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1108       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1109       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1110       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1111       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1112       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1113       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1114       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1115       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1116       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1117       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1118       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1119       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1120       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1121       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1122
1123       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1124       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1125       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1126       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1127       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1128       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1129       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1130       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1131       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1132       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1133       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1134       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1135       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1136       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1137       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1138       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1139       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1140       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1141       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1142       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1143
1144       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1145       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1146       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1147       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1148       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1149       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1150       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1151       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1152       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1153       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1154       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1155       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1156       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1157       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1158       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1159       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1160       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1161       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1162       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1163       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1164
1165       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1166       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1167       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1168       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1169       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1170       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1171       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1172       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1173       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1174       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1175       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1176       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1177       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1178       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1179       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1180       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1181       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1182       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1183       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1184       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1185
1186       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1187       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1188       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1189       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1190       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1191       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1192       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1193       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1194       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1195       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1196       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1197       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1198       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1199       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1200       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1201       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1202       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1203       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1204       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1205       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1206
1207       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1208       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1209       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1210       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1211       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1212       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1213       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1214       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1215       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1216       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1217       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1218       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1219       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1220       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1221       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1222       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1223       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1224       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1225       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1226       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1227
1228       { 0 },
1229    };
1230
1231          frame_count = 0;
1232
1233    environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
1234
1235 #ifdef FRONTEND_SUPPORTS_RGB565
1236         enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
1237         if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
1238                 SysPrintf("RGB565 supported, using it\n");
1239         }
1240 #endif
1241
1242         if (info == NULL || info->path == NULL) {
1243                 SysPrintf("info->path required\n");
1244                 return false;
1245         }
1246
1247         if (plugins_opened) {
1248                 ClosePlugins();
1249                 plugins_opened = 0;
1250         }
1251
1252         for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) {
1253                 if (disks[i].fname != NULL) {
1254                         free(disks[i].fname);
1255                         disks[i].fname = NULL;
1256                 }
1257                 disks[i].internal_index = 0;
1258         }
1259
1260         disk_current_index = 0;
1261         extract_directory(base_dir, info->path, sizeof(base_dir));
1262
1263         if (is_m3u) {
1264                 if (!read_m3u(info->path)) {
1265                         log_cb(RETRO_LOG_INFO, "failed to read m3u file\n");
1266                         return false;
1267                 }
1268         } else {
1269                 disk_count = 1;
1270                 disks[0].fname = strdup(info->path);
1271         }
1272
1273         set_cd_image(disks[0].fname);
1274
1275         /* have to reload after set_cd_image for correct cdr plugin */
1276         if (LoadPlugins() == -1) {
1277                 log_cb(RETRO_LOG_INFO, "failed to load plugins\n");
1278                 return false;
1279         }
1280
1281         plugins_opened = 1;
1282         NetOpened = 0;
1283
1284         if (OpenPlugins() == -1) {
1285                 log_cb(RETRO_LOG_INFO, "failed to open plugins\n");
1286                 return false;
1287         }
1288
1289         plugin_call_rearmed_cbs();
1290         dfinput_activate();
1291
1292         if (CheckCdrom() == -1) {
1293         log_cb(RETRO_LOG_INFO, "unsupported/invalid CD image: %s\n", info->path);
1294                 return false;
1295         }
1296
1297         SysReset();
1298
1299         if (LoadCdrom() == -1) {
1300                 log_cb(RETRO_LOG_INFO, "could not load CD\n");
1301                 return false;
1302         }
1303         emu_on_new_cd(0);
1304
1305         // multidisk images
1306         if (!is_m3u) {
1307                 disk_count = cdrIsoMultidiskCount < 8 ? cdrIsoMultidiskCount : 8;
1308                 for (i = 1; i < sizeof(disks) / sizeof(disks[0]) && i < cdrIsoMultidiskCount; i++) {
1309                         disks[i].fname = strdup(info->path);
1310                         disks[i].internal_index = i;
1311                 }
1312         }
1313
1314         return true;
1315 }
1316
1317 unsigned retro_get_region(void)
1318 {
1319         return is_pal_mode ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
1320 }
1321
1322 void *retro_get_memory_data(unsigned id)
1323 {
1324         if (id == RETRO_MEMORY_SAVE_RAM)
1325                 return Mcd1Data;
1326         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1327                 return psxM;
1328         else
1329                 return NULL;
1330 }
1331
1332 size_t retro_get_memory_size(unsigned id)
1333 {
1334         if (id == RETRO_MEMORY_SAVE_RAM)
1335                 return MCD_SIZE;
1336         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1337                 return 0x200000;
1338         else
1339                 return 0;
1340 }
1341
1342 void retro_reset(void)
1343 {
1344    //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
1345    rebootemu = 1;
1346         //SysReset();
1347 }
1348
1349 static const unsigned short retro_psx_map[] = {
1350         [RETRO_DEVICE_ID_JOYPAD_B]      = 1 << DKEY_CROSS,
1351         [RETRO_DEVICE_ID_JOYPAD_Y]      = 1 << DKEY_SQUARE,
1352         [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT,
1353         [RETRO_DEVICE_ID_JOYPAD_START]  = 1 << DKEY_START,
1354         [RETRO_DEVICE_ID_JOYPAD_UP]     = 1 << DKEY_UP,
1355         [RETRO_DEVICE_ID_JOYPAD_DOWN]   = 1 << DKEY_DOWN,
1356         [RETRO_DEVICE_ID_JOYPAD_LEFT]   = 1 << DKEY_LEFT,
1357         [RETRO_DEVICE_ID_JOYPAD_RIGHT]  = 1 << DKEY_RIGHT,
1358         [RETRO_DEVICE_ID_JOYPAD_A]      = 1 << DKEY_CIRCLE,
1359         [RETRO_DEVICE_ID_JOYPAD_X]      = 1 << DKEY_TRIANGLE,
1360         [RETRO_DEVICE_ID_JOYPAD_L]      = 1 << DKEY_L1,
1361         [RETRO_DEVICE_ID_JOYPAD_R]      = 1 << DKEY_R1,
1362         [RETRO_DEVICE_ID_JOYPAD_L2]     = 1 << DKEY_L2,
1363         [RETRO_DEVICE_ID_JOYPAD_R2]     = 1 << DKEY_R2,
1364         [RETRO_DEVICE_ID_JOYPAD_L3]     = 1 << DKEY_L3,
1365         [RETRO_DEVICE_ID_JOYPAD_R3]     = 1 << DKEY_R3,
1366 };
1367 #define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0]))
1368
1369 static void update_variables(bool in_flight)
1370 {
1371    struct retro_variable var;
1372    int i;
1373    int gpu_peops_fix = 0;
1374
1375    var.value = NULL;
1376    var.key = "pcsx_rearmed_frameskip";
1377    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1378       pl_rearmed_cbs.frameskip = atoi(var.value);
1379
1380    var.value = NULL;
1381    var.key = "pcsx_rearmed_region";
1382    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1383    {
1384       Config.PsxAuto = 0;
1385       if (strcmp(var.value, "auto") == 0)
1386          Config.PsxAuto = 1;
1387       else if (strcmp(var.value, "NTSC") == 0)
1388          Config.PsxType = 0;
1389       else if (strcmp(var.value, "PAL") == 0)
1390          Config.PsxType = 1;
1391    }
1392
1393    for (i = 0; i < PORTS_NUMBER; i++)
1394       update_controller_port_variable(i);
1395
1396    update_multitap();
1397
1398    var.value = NULL;
1399    var.key = "pcsx_rearmed_negcon_deadzone";
1400    negcon_deadzone = 0;
1401    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1402    {
1403       negcon_deadzone = (int)(atoi(var.value) * 0.01f * NEGCON_RANGE);
1404    }
1405
1406    var.value = NULL;
1407    var.key = "pcsx_rearmed_negcon_response";
1408    negcon_linearity = 1;
1409    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1410    {
1411       if (strcmp(var.value, "quadratic") == 0){
1412          negcon_linearity = 2;
1413       } else if (strcmp(var.value, "cubic") == 0){
1414          negcon_linearity = 3;
1415       }
1416    }
1417
1418    var.value = NULL;
1419    var.key = "pcsx_rearmed_vibration";
1420
1421    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1422    {
1423       if (strcmp(var.value, "disabled") == 0)
1424          in_enable_vibration = 0;
1425       else if (strcmp(var.value, "enabled") == 0)
1426          in_enable_vibration = 1;
1427    }
1428
1429    var.value = NULL;
1430    var.key = "pcsx_rearmed_dithering";
1431
1432    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1433    {
1434       if (strcmp(var.value, "disabled") == 0) {
1435          pl_rearmed_cbs.gpu_peops.iUseDither = 0;
1436          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 0;
1437          pl_rearmed_cbs.gpu_unai.dithering = 0;
1438 #ifdef __ARM_NEON__
1439          pl_rearmed_cbs.gpu_neon.allow_dithering = 0;
1440 #endif
1441       }
1442       else if (strcmp(var.value, "enabled") == 0) {
1443          pl_rearmed_cbs.gpu_peops.iUseDither = 1;
1444          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 1;
1445          pl_rearmed_cbs.gpu_unai.dithering = 1;
1446 #ifdef __ARM_NEON__
1447          pl_rearmed_cbs.gpu_neon.allow_dithering = 1;
1448 #endif
1449       }
1450    }
1451
1452 #ifdef __ARM_NEON__
1453    var.value = "NULL";
1454    var.key = "pcsx_rearmed_neon_interlace_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.allow_interlace = 0;
1460       else if (strcmp(var.value, "enabled") == 0)
1461          pl_rearmed_cbs.gpu_neon.allow_interlace = 1;
1462    }
1463
1464    var.value = NULL;
1465    var.key = "pcsx_rearmed_neon_enhancement_enable";
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_enable = 0;
1471       else if (strcmp(var.value, "enabled") == 0)
1472          pl_rearmed_cbs.gpu_neon.enhancement_enable = 1;
1473    }
1474
1475    var.value = NULL;
1476    var.key = "pcsx_rearmed_neon_enhancement_no_main";
1477
1478    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1479    {
1480       if (strcmp(var.value, "disabled") == 0)
1481          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 0;
1482       else if (strcmp(var.value, "enabled") == 0)
1483          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 1;
1484    }
1485 #endif
1486
1487    var.value = "NULL";
1488    var.key = "pcsx_rearmed_duping_enable";
1489
1490    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1491    {
1492       if (strcmp(var.value, "disabled") == 0)
1493          duping_enable = false;
1494       else if (strcmp(var.value, "enabled") == 0)
1495          duping_enable = true;
1496    }
1497
1498    var.value = "NULL";
1499    var.key = "pcsx_rearmed_display_internal_fps";
1500
1501    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1502    {
1503       if (strcmp(var.value, "disabled") == 0)
1504          display_internal_fps = false;
1505       else if (strcmp(var.value, "enabled") == 0)
1506          display_internal_fps = true;
1507    }
1508
1509 #ifndef DRC_DISABLE
1510    var.value = NULL;
1511    var.key = "pcsx_rearmed_drc";
1512
1513    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1514    {
1515       R3000Acpu *prev_cpu = psxCpu;
1516
1517 #ifdef _3DS
1518       if(!__ctr_svchax)
1519          Config.Cpu = CPU_INTERPRETER;
1520       else
1521 #endif
1522       if (strcmp(var.value, "disabled") == 0)
1523          Config.Cpu = CPU_INTERPRETER;
1524       else if (strcmp(var.value, "enabled") == 0)
1525          Config.Cpu = CPU_DYNAREC;
1526
1527       psxCpu = (Config.Cpu == CPU_INTERPRETER) ? &psxInt : &psxRec;
1528       if (psxCpu != prev_cpu) {
1529          prev_cpu->Shutdown();
1530          psxCpu->Init();
1531          psxCpu->Reset(); // not really a reset..
1532       }
1533    }
1534 #endif
1535
1536    var.value = "NULL";
1537    var.key = "pcsx_rearmed_spu_reverb";
1538
1539    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1540    {
1541       if (strcmp(var.value, "disabled") == 0)
1542          spu_config.iUseReverb = false;
1543       else if (strcmp(var.value, "enabled") == 0)
1544          spu_config.iUseReverb = true;
1545    }
1546
1547    var.value = "NULL";
1548    var.key = "pcsx_rearmed_spu_interpolation";
1549
1550    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1551    {
1552       if (strcmp(var.value, "simple") == 0)
1553          spu_config.iUseInterpolation = 1;
1554       else if (strcmp(var.value, "gaussian") == 0)
1555          spu_config.iUseInterpolation = 2;
1556       else if (strcmp(var.value, "cubic") == 0)
1557          spu_config.iUseInterpolation = 3;
1558       else if (strcmp(var.value, "off") == 0)
1559          spu_config.iUseInterpolation = 0;
1560    }
1561
1562    var.value = "NULL";
1563    var.key = "pcsx_rearmed_pe2_fix";
1564
1565    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1566    {
1567       if (strcmp(var.value, "disabled") == 0)
1568          Config.RCntFix = 0;
1569       else if (strcmp(var.value, "enabled") == 0)
1570          Config.RCntFix = 1;
1571    }
1572
1573    var.value = "NULL";
1574    var.key = "pcsx_rearmed_idiablofix";
1575
1576    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1577    {
1578       if (strcmp(var.value, "disabled") == 0)
1579          spu_config.idiablofix = 0;
1580       else if (strcmp(var.value, "enabled") == 0)
1581          spu_config.idiablofix = 1;
1582    }
1583
1584    var.value = "NULL";
1585    var.key = "pcsx_rearmed_inuyasha_fix";
1586
1587    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1588    {
1589       if (strcmp(var.value, "disabled") == 0)
1590          Config.VSyncWA = 0;
1591       else if (strcmp(var.value, "enabled") == 0)
1592          Config.VSyncWA = 1;
1593    }
1594
1595    var.value = NULL;
1596    var.key = "pcsx_rearmed_noxadecoding";
1597    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1598    {
1599       if (strcmp(var.value, "disabled") == 0)
1600          Config.Xa = 1;
1601       else
1602          Config.Xa = 0;
1603    }
1604
1605    var.value = NULL;
1606    var.key = "pcsx_rearmed_nocdaudio";
1607    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1608    {
1609       if (strcmp(var.value, "disabled") == 0)
1610          Config.Cdda = 1;
1611       else
1612          Config.Cdda = 0;
1613    }
1614
1615 #ifndef DRC_DISABLE
1616    var.value = NULL;
1617    var.key = "pcsx_rearmed_nosmccheck";
1618    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1619    {
1620       if (strcmp(var.value, "enabled") == 0)
1621          new_dynarec_hacks |= NDHACK_NO_SMC_CHECK;
1622       else
1623          new_dynarec_hacks &= ~NDHACK_NO_SMC_CHECK;
1624    }
1625
1626    var.value = NULL;
1627    var.key = "pcsx_rearmed_gteregsunneeded";
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_UNNEEDED;
1632       else
1633          new_dynarec_hacks &= ~NDHACK_GTE_UNNEEDED;
1634    }
1635
1636    var.value = NULL;
1637    var.key = "pcsx_rearmed_nogteflags";
1638    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1639    {
1640       if (strcmp(var.value, "enabled") == 0)
1641          new_dynarec_hacks |= NDHACK_GTE_NO_FLAGS;
1642       else
1643          new_dynarec_hacks &= ~NDHACK_GTE_NO_FLAGS;
1644    }
1645 #endif
1646
1647 #ifdef GPU_PEOPS
1648    var.value = "NULL";
1649    var.key = "pcsx_rearmed_gpu_peops_odd_even_bit";
1650
1651    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1652    {
1653       if (strcmp(var.value, "enabled") == 0)
1654          gpu_peops_fix |= GPU_PEOPS_ODD_EVEN_BIT;
1655    }
1656
1657    var.value = "NULL";
1658    var.key = "pcsx_rearmed_gpu_peops_expand_screen_width";
1659
1660    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1661    {
1662       if (strcmp(var.value, "enabled") == 0)
1663          gpu_peops_fix |= GPU_PEOPS_EXPAND_SCREEN_WIDTH;
1664    }
1665
1666    var.value = "NULL";
1667    var.key = "pcsx_rearmed_gpu_peops_ignore_brightness";
1668
1669    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1670    {
1671       if (strcmp(var.value, "enabled") == 0)
1672          gpu_peops_fix |= GPU_PEOPS_IGNORE_BRIGHTNESS;
1673    }
1674
1675    var.value = "NULL";
1676    var.key = "pcsx_rearmed_gpu_peops_disable_coord_check";
1677
1678    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1679    {
1680       if (strcmp(var.value, "enabled") == 0)
1681          gpu_peops_fix |= GPU_PEOPS_DISABLE_COORD_CHECK;
1682    }
1683
1684    var.value = "NULL";
1685    var.key = "pcsx_rearmed_gpu_peops_lazy_screen_update";
1686
1687    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1688    {
1689       if (strcmp(var.value, "enabled") == 0)
1690          gpu_peops_fix |= GPU_PEOPS_LAZY_SCREEN_UPDATE;
1691    }
1692
1693    var.value = "NULL";
1694    var.key = "pcsx_rearmed_gpu_peops_old_frame_skip";
1695
1696    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1697    {
1698       if (strcmp(var.value, "enabled") == 0)
1699          gpu_peops_fix |= GPU_PEOPS_OLD_FRAME_SKIP;
1700    }
1701
1702    var.value = "NULL";
1703    var.key = "pcsx_rearmed_gpu_peops_repeated_triangles";
1704
1705    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1706    {
1707       if (strcmp(var.value, "enabled") == 0)
1708          gpu_peops_fix |= GPU_PEOPS_REPEATED_TRIANGLES;
1709    }
1710
1711    var.value = "NULL";
1712    var.key = "pcsx_rearmed_gpu_peops_quads_with_triangles";
1713
1714    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1715    {
1716       if (strcmp(var.value, "enabled") == 0)
1717          gpu_peops_fix |= GPU_PEOPS_QUADS_WITH_TRIANGLES;
1718    }
1719
1720    var.value = "NULL";
1721    var.key = "pcsx_rearmed_gpu_peops_fake_busy_state";
1722
1723    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1724    {
1725       if (strcmp(var.value, "enabled") == 0)
1726          gpu_peops_fix |= GPU_PEOPS_FAKE_BUSY_STATE;
1727    }
1728
1729    if (pl_rearmed_cbs.gpu_peops.dwActFixes != gpu_peops_fix)
1730       pl_rearmed_cbs.gpu_peops.dwActFixes = gpu_peops_fix;
1731
1732
1733    /* Show/hide core options */
1734
1735    var.key = "pcsx_rearmed_show_gpu_peops_settings";
1736    var.value = NULL;
1737
1738    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1739    {
1740       int show_advanced_gpu_peops_settings_prev = show_advanced_gpu_peops_settings;
1741
1742       show_advanced_gpu_peops_settings = 1;
1743       if (strcmp(var.value, "disabled") == 0)
1744          show_advanced_gpu_peops_settings = 0;
1745
1746       if (show_advanced_gpu_peops_settings != show_advanced_gpu_peops_settings_prev)
1747       {
1748          unsigned i;
1749          struct retro_core_option_display option_display;
1750          char gpu_peops_option[9][45] = {
1751             "pcsx_rearmed_gpu_peops_odd_even_bit",
1752             "pcsx_rearmed_gpu_peops_expand_screen_width",
1753             "pcsx_rearmed_gpu_peops_ignore_brightness",
1754             "pcsx_rearmed_gpu_peops_disable_coord_check",
1755             "pcsx_rearmed_gpu_peops_lazy_screen_update",
1756             "pcsx_rearmed_gpu_peops_old_frame_skip",
1757             "pcsx_rearmed_gpu_peops_repeated_triangles",
1758             "pcsx_rearmed_gpu_peops_quads_with_triangles",
1759             "pcsx_rearmed_gpu_peops_fake_busy_state",
1760          };
1761
1762          option_display.visible = show_advanced_gpu_peops_settings;
1763
1764          for (i = 0; i < 9; i++)
1765          {
1766             option_display.key = gpu_peops_option[i];
1767             environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
1768          }
1769       }
1770    }
1771 #endif
1772
1773 #ifdef GPU_UNAI
1774    var.key = "pcsx_rearmed_gpu_unai_ilace_force";
1775    var.value = NULL;
1776
1777    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1778    {
1779       if (strcmp(var.value, "disabled") == 0)
1780          pl_rearmed_cbs.gpu_unai.ilace_force = 0;
1781       else if (strcmp(var.value, "enabled") == 0)
1782          pl_rearmed_cbs.gpu_unai.ilace_force = 1;
1783    }
1784
1785    var.key = "pcsx_rearmed_gpu_unai_pixel_skip";
1786    var.value = NULL;
1787
1788    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1789    {
1790       if (strcmp(var.value, "disabled") == 0)
1791          pl_rearmed_cbs.gpu_unai.pixel_skip = 0;
1792       else if (strcmp(var.value, "enabled") == 0)
1793          pl_rearmed_cbs.gpu_unai.pixel_skip = 1;
1794    }
1795
1796    var.key = "pcsx_rearmed_gpu_unai_lighting";
1797    var.value = NULL;
1798
1799    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1800    {
1801       if (strcmp(var.value, "disabled") == 0)
1802          pl_rearmed_cbs.gpu_unai.lighting = 0;
1803       else if (strcmp(var.value, "enabled") == 0)
1804          pl_rearmed_cbs.gpu_unai.lighting = 1;
1805    }
1806
1807    var.key = "pcsx_rearmed_gpu_unai_fast_lighting";
1808    var.value = NULL;
1809
1810    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1811    {
1812       if (strcmp(var.value, "disabled") == 0)
1813          pl_rearmed_cbs.gpu_unai.fast_lighting = 0;
1814       else if (strcmp(var.value, "enabled") == 0)
1815          pl_rearmed_cbs.gpu_unai.fast_lighting = 1;
1816    }
1817
1818    var.key = "pcsx_rearmed_gpu_unai_blending";
1819    var.value = NULL;
1820
1821    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1822    {
1823       if (strcmp(var.value, "disabled") == 0)
1824          pl_rearmed_cbs.gpu_unai.blending = 0;
1825       else if (strcmp(var.value, "enabled") == 0)
1826          pl_rearmed_cbs.gpu_unai.blending = 1;
1827    }
1828
1829    var.key = "pcsx_rearmed_show_gpu_unai_settings";
1830    var.value = NULL;
1831
1832    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1833    {
1834       int show_advanced_gpu_unai_settings_prev = show_advanced_gpu_unai_settings;
1835
1836       show_advanced_gpu_unai_settings = 1;
1837       if (strcmp(var.value, "disabled") == 0)
1838          show_advanced_gpu_unai_settings = 0;
1839
1840       if (show_advanced_gpu_unai_settings != show_advanced_gpu_unai_settings_prev)
1841       {
1842          unsigned i;
1843          struct retro_core_option_display option_display;
1844          char gpu_unai_option[5][40] = {
1845             "pcsx_rearmed_gpu_unai_blending",
1846             "pcsx_rearmed_gpu_unai_lighting",
1847             "pcsx_rearmed_gpu_unai_fast_lighting",
1848             "pcsx_rearmed_gpu_unai_ilace_force",
1849             "pcsx_rearmed_gpu_unai_pixel_skip",
1850          };
1851
1852          option_display.visible = show_advanced_gpu_unai_settings;
1853
1854          for (i = 0; i < 5; i++)
1855          {
1856             option_display.key = gpu_unai_option[i];
1857             environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
1858          }
1859       }
1860    }
1861 #endif // GPU_UNAI
1862
1863    if (in_flight) {
1864       // inform core things about possible config changes
1865       plugin_call_rearmed_cbs();
1866
1867       if (GPU_open != NULL && GPU_close != NULL) {
1868          GPU_close();
1869          GPU_open(&gpuDisp, "PCSX", NULL);
1870       }
1871
1872       dfinput_activate();
1873    }
1874    else
1875    {
1876       //not yet running
1877
1878       //bootlogo display hack
1879       if (found_bios) {
1880          var.value = "NULL";
1881          var.key = "pcsx_rearmed_show_bios_bootlogo";
1882          if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1883          {
1884             Config.SlowBoot = 0;
1885             rebootemu = 0;
1886             if (strcmp(var.value, "enabled") == 0)
1887             {
1888                Config.SlowBoot = 1;
1889                rebootemu = 1;
1890             }
1891          }
1892       }
1893 #ifndef DRC_DISABLE
1894       var.value = "NULL";
1895       var.key = "pcsx_rearmed_psxclock";
1896       if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1897       {
1898          int psxclock = atoi(var.value);
1899          cycle_multiplier = 10000 / psxclock;
1900       }
1901 #endif
1902    }
1903 }
1904
1905 // Taken from beetle-psx-libretro
1906 static uint16_t get_analog_button(int16_t ret, retro_input_state_t input_state_cb, int player_index, int id)
1907 {
1908         // NOTE: Analog buttons were added Nov 2017. Not all front-ends support this
1909         // feature (or pre-date it) so we need to handle this in a graceful way.
1910
1911         // First, try and get an analog value using the new libretro API constant
1912         uint16_t button = input_state_cb(player_index,
1913                                                                         RETRO_DEVICE_ANALOG,
1914                                                                         RETRO_DEVICE_INDEX_ANALOG_BUTTON,
1915                                                                         id);
1916         button = MIN(button / 128, 255);
1917
1918         if (button == 0)
1919         {
1920                 // If we got exactly zero, we're either not pressing the button, or the front-end
1921                 // is not reporting analog values. We need to do a second check using the classic
1922                 // digital API method, to at least get some response - better than nothing.
1923
1924                 // NOTE: If we're really just not holding the button, we're still going to get zero.
1925
1926                 button = (ret & (1 << id)) ? 255 : 0;
1927         }
1928
1929         return button;
1930 }
1931
1932 void retro_run(void)
1933 {
1934         int i;
1935         //SysReset must be run while core is running,Not in menu (Locks up Retroarch)
1936         if (rebootemu != 0) {
1937                 rebootemu = 0;
1938                 SysReset();
1939                 if (!Config.HLE && !Config.SlowBoot) {
1940                         // skip BIOS logos
1941                         psxRegs.pc = psxRegs.GPR.n.ra;
1942                 }
1943         }
1944
1945         if (display_internal_fps) {
1946                 frame_count++;
1947
1948                 if (frame_count % INTERNAL_FPS_SAMPLE_PERIOD == 0) {
1949                         unsigned internal_fps = pl_rearmed_cbs.flip_cnt * (is_pal_mode ? 50 : 60) / INTERNAL_FPS_SAMPLE_PERIOD;
1950                         char str[64];
1951                         const char *strc = (const char*)str;
1952                         struct retro_message msg =
1953                         {
1954                                 strc,
1955                                 180
1956                         };
1957
1958                         str[0] = '\0';
1959
1960                         snprintf(str, sizeof(str), "Internal FPS: %2d", internal_fps);
1961
1962                         pl_rearmed_cbs.flip_cnt = 0;
1963
1964                         environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &msg);
1965                 }
1966         }
1967    else
1968                 frame_count = 0;
1969
1970         input_poll_cb();
1971
1972         bool updated = false;
1973         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
1974                 update_variables(true);
1975
1976         // reset all keystate, query libretro for keystate
1977         int j;
1978         int lsx;
1979         int rsy;
1980         float negcon_twist_amplitude;
1981         int negcon_i_rs;
1982         int negcon_ii_rs;
1983         for(i = 0; i < PORTS_NUMBER; i++)
1984    {
1985       int16_t ret    = 0;
1986                 in_keystate[i] = 0;
1987
1988                 if (in_type[i] == PSE_PAD_TYPE_NONE)
1989                         continue;
1990
1991       if (libretro_supports_bitmasks)
1992          ret = input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
1993       else
1994       {
1995          unsigned j;
1996          for (j = 0; j < (RETRO_DEVICE_ID_JOYPAD_R3+1); j++)
1997          {
1998             if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, j))
1999                ret |= (1 << j);
2000          }
2001       }
2002
2003                 if (in_type[i] == PSE_PAD_TYPE_NEGCON)
2004                 {
2005                         // Query digital inputs
2006                         //
2007                         // > Pad-Up
2008                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_UP))
2009                                 in_keystate[i] |= (1 << DKEY_UP);
2010                         // > Pad-Right
2011                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT))
2012                                 in_keystate[i] |= (1 << DKEY_RIGHT);
2013                         // > Pad-Down
2014                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN))
2015                                 in_keystate[i] |= (1 << DKEY_DOWN);
2016                         // > Pad-Left
2017                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT))
2018                                 in_keystate[i] |= (1 << DKEY_LEFT);
2019                         // > Start
2020                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
2021                                 in_keystate[i] |= (1 << DKEY_START);
2022                         // > neGcon A
2023                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_A))
2024                                 in_keystate[i] |= (1 << DKEY_CIRCLE);
2025                         // > neGcon B
2026                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_X))
2027                                 in_keystate[i] |= (1 << DKEY_TRIANGLE);
2028                         // > neGcon R shoulder (digital)
2029                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_R))
2030                                 in_keystate[i] |= (1 << DKEY_R1);
2031                         // Query analog inputs
2032                         //
2033                         // From studying 'libpcsxcore/plugins.c' and 'frontend/plugin.c':
2034                         // >> pad->leftJoyX  == in_analog_left[i][0]  == NeGcon II
2035                         // >> pad->leftJoyY  == in_analog_left[i][1]  == NeGcon L
2036                         // >> pad->rightJoyX == in_analog_right[i][0] == NeGcon twist
2037                         // >> pad->rightJoyY == in_analog_right[i][1] == NeGcon I
2038                         // So we just have to map in_analog_left/right to more
2039                         // appropriate inputs...
2040                         //
2041                         // > NeGcon twist
2042                         // >> Get raw analog stick value and account for deadzone
2043                         lsx = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X);
2044                         if (lsx > negcon_deadzone)
2045                                 lsx = lsx - negcon_deadzone;
2046                         else if (lsx < -negcon_deadzone)
2047                                 lsx = lsx + negcon_deadzone;
2048                         else
2049                                 lsx = 0;
2050                         // >> Convert to an 'amplitude' [-1.0,1.0] and adjust response
2051                         negcon_twist_amplitude = (float)lsx / (float)(NEGCON_RANGE - negcon_deadzone);
2052                         if (negcon_linearity == 2)
2053          {
2054                                 if (negcon_twist_amplitude < 0.0)
2055                                         negcon_twist_amplitude = -(negcon_twist_amplitude * negcon_twist_amplitude);
2056             else
2057                                         negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude;
2058                         }
2059          else if (negcon_linearity == 3)
2060                                 negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude * negcon_twist_amplitude;
2061                         // >> Convert to final 'in_analog' integer value [0,255]
2062                         in_analog_right[i][0] = MAX(MIN((int)(negcon_twist_amplitude * 128.0f) + 128, 255), 0);
2063                         // > NeGcon I + II
2064                         // >> Handle right analog stick vertical axis mapping...
2065                         //    - Up (-Y) == accelerate == neGcon I
2066                         //    - Down (+Y) == brake == neGcon II
2067                         negcon_i_rs = 0;
2068                         negcon_ii_rs = 0;
2069                         rsy = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y);
2070                         if (rsy >= 0){
2071                                 // Account for deadzone
2072                                 // (Note: have never encountered a gamepad with significant differences
2073                                 // in deadzone between left/right analog sticks, so use the regular 'twist'
2074                                 // deadzone here)
2075                                 if (rsy > negcon_deadzone)
2076                                         rsy = rsy - negcon_deadzone;
2077             else
2078                                         rsy = 0;
2079                                 // Convert to 'in_analog' integer value [0,255]
2080                                 negcon_ii_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2081                         } else {
2082                                 if (rsy < -negcon_deadzone)
2083                                         rsy = -1 * (rsy + negcon_deadzone);
2084             else
2085                                         rsy = 0;
2086                                 negcon_i_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2087                         }
2088                         // >> NeGcon I
2089                         in_analog_right[i][1] = MAX(
2090                                 MAX(
2091                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_R2),
2092                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_B)
2093                                 ),
2094                                 negcon_i_rs
2095                         );
2096                         // >> NeGcon II
2097                         in_analog_left[i][0] = MAX(
2098                                 MAX(
2099                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L2),
2100                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_Y)
2101                                 ),
2102                                 negcon_ii_rs
2103                         );
2104                         // > NeGcon L
2105                         in_analog_left[i][1] = get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L);
2106                 }
2107                 else
2108                 {
2109                         // Query digital inputs
2110                         for (j = 0; j < RETRO_PSX_MAP_LEN; j++)
2111                                 if (ret & (1 << j))
2112                                         in_keystate[i] |= retro_psx_map[j];
2113
2114                         // Query analog inputs
2115                         if (in_type[i] == PSE_PAD_TYPE_ANALOGJOY || in_type[i] == PSE_PAD_TYPE_ANALOGPAD)
2116                         {
2117                                 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);
2118                                 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);
2119                                 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);
2120                                 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);
2121                         }
2122                 }
2123         }
2124
2125         stop = 0;
2126         psxCpu->Execute();
2127
2128         video_cb((vout_fb_dirty || !vout_can_dupe || !duping_enable) ? vout_buf_ptr : NULL,
2129                 vout_width, vout_height, vout_width * 2);
2130         vout_fb_dirty = 0;
2131
2132     set_vout_fb();
2133 }
2134
2135 static bool try_use_bios(const char *path)
2136 {
2137         FILE *f;
2138         long size;
2139         const char *name;
2140
2141         f = fopen(path, "rb");
2142         if (f == NULL)
2143                 return false;
2144
2145         fseek(f, 0, SEEK_END);
2146         size = ftell(f);
2147         fclose(f);
2148
2149         if (size != 512 * 1024)
2150                 return false;
2151
2152         name = strrchr(path, SLASH);
2153         if (name++ == NULL)
2154                 name = path;
2155         snprintf(Config.Bios, sizeof(Config.Bios), "%s", name);
2156         return true;
2157 }
2158
2159 #ifndef VITA
2160 #include <sys/types.h>
2161 #include <dirent.h>
2162
2163 static bool find_any_bios(const char *dirpath, char *path, size_t path_size)
2164 {
2165         DIR *dir;
2166         struct dirent *ent;
2167         bool ret = false;
2168
2169         dir = opendir(dirpath);
2170         if (dir == NULL)
2171                 return false;
2172
2173         while ((ent = readdir(dir))) {
2174                 if ((strncasecmp(ent->d_name, "scph", 4) != 0) && (strncasecmp(ent->d_name, "psx", 3) != 0))
2175                         continue;
2176
2177                 snprintf(path, path_size, "%s%c%s", dirpath, SLASH, ent->d_name);
2178                 ret = try_use_bios(path);
2179                 if (ret)
2180                         break;
2181         }
2182         closedir(dir);
2183         return ret;
2184 }
2185 #else
2186 #define find_any_bios(...) false
2187 #endif
2188
2189 static void check_system_specs(void)
2190 {
2191    unsigned level = 6;
2192    environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
2193 }
2194
2195 static int init_memcards(void)
2196 {
2197         int ret = 0;
2198         const char *dir;
2199         struct retro_variable var = { .key="pcsx_rearmed_memcard2", .value=NULL };
2200         static const char CARD2_FILE[] = "pcsx-card2.mcd";
2201
2202         // Memcard2 will be handled and is re-enabled if needed using core
2203         // operations.
2204         // Memcard1 is handled by libretro, doing this will set core to
2205         // skip file io operations for memcard1 like SaveMcd
2206         snprintf(Config.Mcd1, sizeof(Config.Mcd1), "none");
2207         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "none");
2208         init_memcard(Mcd1Data);
2209         // Memcard 2 is managed by the emulator on the filesystem,
2210         // There is no need to initialize Mcd2Data like Mcd1Data.
2211
2212         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2213                 SysPrintf("Memcard 2: %s\n", var.value);
2214                 if (memcmp(var.value, "enabled", 7) == 0) {
2215                         if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir) {
2216                                 if (strlen(dir) + strlen(CARD2_FILE) + 2 > sizeof(Config.Mcd2)) {
2217                                         SysPrintf("Path '%s' is too long. Cannot use memcard 2. Use a shorter path.\n", dir);
2218                                         ret = -1;
2219                                 } else {
2220                                         McdDisable[1] = 0;
2221                                         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "%s/%s", dir, CARD2_FILE);
2222                                         SysPrintf("Use memcard 2: %s\n", Config.Mcd2);
2223                                 }
2224                         } else {
2225                                 SysPrintf("Could not get save directory! Could not create memcard 2.");
2226                                 ret = -1;
2227                         }
2228                 }
2229         }
2230         return ret;
2231 }
2232
2233 static void loadPSXBios(void)
2234 {
2235         const char *dir;
2236         char path[PATH_MAX];
2237         unsigned useHLE = 0;
2238
2239         const char *bios[] = {
2240                 "PSXONPSP660", "psxonpsp660",
2241                 "SCPH101", "scph101",
2242                 "SCPH5501", "scph5501",
2243                 "SCPH7001", "scph7001",
2244                 "SCPH1001", "scph1001"
2245         };
2246
2247         struct retro_variable var = {
2248                 .key = "pcsx_rearmed_bios",
2249                 .value = NULL
2250         };
2251
2252         found_bios = 0;
2253
2254         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2255                 if (!strcmp(var.value, "HLE"))
2256                         useHLE = 1;
2257         }
2258
2259         if (!useHLE)
2260         {
2261                 if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
2262                 {
2263                         unsigned i;
2264                         snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s", dir);
2265
2266                         for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) {
2267                                 snprintf(path, sizeof(path), "%s%c%s.bin", dir, SLASH, bios[i]);
2268                                 found_bios = try_use_bios(path);
2269                                 if (found_bios)
2270                                         break;
2271                         }
2272
2273                         if (!found_bios)
2274                                 found_bios = find_any_bios(dir, path, sizeof(path));
2275                 }
2276                 if (found_bios) {
2277                         SysPrintf("found BIOS file: %s\n", Config.Bios);
2278                 }
2279         }
2280
2281         if (useHLE || !found_bios)
2282         {
2283                 SysPrintf("no BIOS files found.\n");
2284                 struct retro_message msg =
2285                 {
2286                         "No PlayStation BIOS file found - add for better compatibility",
2287                         180
2288                 };
2289                 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, (void*)&msg);
2290         }
2291 }
2292
2293 void retro_init(void)
2294 {
2295         struct retro_rumble_interface rumble;
2296         int ret;
2297
2298 #ifdef __MACH__
2299         // magic sauce to make the dynarec work on iOS
2300         syscall(SYS_ptrace, 0 /*PTRACE_TRACEME*/, 0, 0, 0);
2301 #endif
2302
2303 #ifdef _3DS
2304    psxMapHook = pl_3ds_mmap;
2305    psxUnmapHook = pl_3ds_munmap;
2306 #endif
2307 #ifdef VITA
2308    if(init_vita_mmap()<0)
2309       abort();
2310    psxMapHook = pl_vita_mmap;
2311    psxUnmapHook = pl_vita_munmap;
2312 #endif
2313         ret = emu_core_preinit();
2314 #ifdef _3DS
2315    /* emu_core_preinit sets the cpu to dynarec */
2316    if(!__ctr_svchax)
2317       Config.Cpu = CPU_INTERPRETER;
2318 #endif
2319         ret |= init_memcards();
2320
2321         ret |= emu_core_init();
2322         if (ret != 0) {
2323                 SysPrintf("PCSX init failed.\n");
2324                 exit(1);
2325         }
2326
2327 #ifdef _3DS
2328    vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80);
2329 #elif defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L) && !defined(VITA)
2330         posix_memalign(&vout_buf, 16, VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2331 #else
2332         vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2333 #endif
2334
2335         vout_buf_ptr = vout_buf;
2336
2337         loadPSXBios();
2338
2339         environ_cb(RETRO_ENVIRONMENT_GET_CAN_DUPE, &vout_can_dupe);
2340         environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control);
2341
2342         rumble_cb = NULL;
2343         if (environ_cb(RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE, &rumble))
2344                 rumble_cb = rumble.set_rumble_state;
2345
2346         /* Set how much slower PSX CPU runs * 100 (so that 200 is 2 times)
2347          * we have to do this because cache misses and some IO penalties
2348          * are not emulated. Warning: changing this may break compatibility. */
2349         cycle_multiplier = 175;
2350 #ifdef HAVE_PRE_ARMV7
2351         cycle_multiplier = 200;
2352 #endif
2353         pl_rearmed_cbs.gpu_peops.iUseDither = 1;
2354         pl_rearmed_cbs.gpu_peops.dwActFixes = GPU_PEOPS_OLD_FRAME_SKIP;
2355         spu_config.iUseFixedUpdates = 1;
2356
2357         SaveFuncs.open = save_open;
2358         SaveFuncs.read = save_read;
2359         SaveFuncs.write = save_write;
2360         SaveFuncs.seek = save_seek;
2361         SaveFuncs.close = save_close;
2362
2363    if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL))
2364       libretro_supports_bitmasks = true;
2365
2366         update_variables(false);
2367         check_system_specs();
2368 }
2369
2370 void retro_deinit(void)
2371 {
2372         ClosePlugins();
2373         SysClose();
2374 #ifdef _3DS
2375    linearFree(vout_buf);
2376 #else
2377         free(vout_buf);
2378 #endif
2379         vout_buf = NULL;
2380
2381 #ifdef VITA
2382   deinit_vita_mmap();
2383 #endif
2384    libretro_supports_bitmasks = false;
2385 }
2386
2387 #ifdef VITA
2388 #include <psp2/kernel/threadmgr.h>
2389 int usleep (unsigned long us)
2390 {
2391    sceKernelDelayThread(us);
2392 }
2393 #endif
2394
2395 void SysPrintf(const char *fmt, ...) {
2396         va_list list;
2397         char msg[512];
2398
2399         va_start(list, fmt);
2400         vsprintf(msg, fmt, list);
2401         va_end(list);
2402
2403         if (log_cb)
2404                 log_cb(RETRO_LOG_INFO, "%s", msg);
2405 }