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 #ifdef SWITCH
  19 #include <switch.h>
  20 #endif
  21
  22 #include "../libpcsxcore/misc.h"
  23 #include "../libpcsxcore/psxcounters.h"
  24 #include "../libpcsxcore/psxmem_map.h"
  25 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
  26 #include "../libpcsxcore/cdrom.h"
  27 #include "../libpcsxcore/cdriso.h"
  28 #include "../libpcsxcore/cheat.h"
  29 #include "../libpcsxcore/r3000a.h"
  30 #include "../plugins/dfsound/out.h"
  31 #include "../plugins/dfsound/spu_config.h"
  32 #include "../plugins/dfinput/externals.h"
  33 #include "cspace.h"
  34 #include "main.h"
  35 #include "menu.h"
  36 #include "plugin.h"
  37 #include "plugin_lib.h"
  38 #include "arm_features.h"
  39 #include "revision.h"
  40
  41 #include <libretro.h>
  42 #include "libretro_core_options.h"
  43
  44 #ifdef _3DS
  45 #include "3ds/3ds_utils.h"
  46 #endif
  47
  48 #define PORTS_NUMBER 8
  49
  50 #ifndef MIN
  51 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  52 #endif
  53
  54 #ifndef MAX
  55 #define MAX(a, b) ((a) > (b) ? (a) : (b))
  56 #endif
  57
  58 #define ISHEXDEC ((buf[cursor]>='0') && (buf[cursor]<='9')) || ((buf[cursor]>='a') && (buf[cursor]<='f')) || ((buf[cursor]>='A') && (buf[cursor]<='F'))
  59
  60 #define INTERNAL_FPS_SAMPLE_PERIOD 64
  61
  62 //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
  63 static int rebootemu = 0;
  64
  65 static retro_video_refresh_t video_cb;
  66 static retro_input_poll_t input_poll_cb;
  67 static retro_input_state_t input_state_cb;
  68 static retro_environment_t environ_cb;
  69 static retro_audio_sample_batch_t audio_batch_cb;
  70 static retro_set_rumble_state_t rumble_cb;
  71 static struct retro_log_callback logging;
  72 static retro_log_printf_t log_cb;
  73
  74 static void *vout_buf;
  75 static void * vout_buf_ptr;
  76 static int vout_width, vout_height;
  77 static int vout_doffs_old, vout_fb_dirty;
  78 static bool vout_can_dupe;
  79 static bool duping_enable;
  80 static bool found_bios;
  81 static bool display_internal_fps = false;
  82 static unsigned frame_count = 0;
  83 static bool libretro_supports_bitmasks = false;
  84 static int show_advanced_gpu_peops_settings = -1;
  85 static int show_advanced_gpu_unai_settings  = -1;
  86
  87 static unsigned previous_width = 0;
  88 static unsigned previous_height = 0;
  89
  90 static int plugins_opened;
  91 static int is_pal_mode;
  92
  93 /* memory card data */
  94 extern char Mcd1Data[MCD_SIZE];
  95 extern char Mcd2Data[MCD_SIZE];
  96 extern char McdDisable[2];
  97
  98 /* PCSX ReARMed core calls and stuff */
  99 int in_type[8] =  { PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
 100                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
 101                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
 102                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE };
 103 int in_analog_left[8][2] = {{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 }};
 104 int in_analog_right[8][2] = {{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 }};
 105 unsigned short in_keystate[PORTS_NUMBER];
 106 int multitap1 = 0;
 107 int multitap2 = 0;
 108 int in_enable_vibration = 1;
 109
 110 // NegCon adjustment parameters
 111 // > The NegCon 'twist' action is somewhat awkward when mapped
 112 //   to a standard analog stick -> user should be able to tweak
 113 //   response/deadzone for comfort
 114 // > When response is linear, 'additional' deadzone (set here)
 115 //   may be left at zero, since this is normally handled via in-game
 116 //   options menus
 117 // > When response is non-linear, deadzone should be set to match the
 118 //   controller being used (otherwise precision may be lost)
 119 // > negcon_linearity:
 120 //   - 1: Response is linear - recommended when using racing wheel
 121 //        peripherals, not recommended for standard gamepads
 122 //   - 2: Response is quadratic - optimal setting for gamepads
 123 //   - 3: Response is cubic - enables precise fine control, but
 124 //        difficult to use...
 125 #define NEGCON_RANGE 0x7FFF
 126 static int negcon_deadzone = 0;
 127 static int negcon_linearity = 1;
 128
 129 /* PSX max resolution is 640x512, but with enhancement it's 1024x512 */
 130 #define VOUT_MAX_WIDTH 1024
 131 #define VOUT_MAX_HEIGHT 512
 132
 133 //Dummy functions
 134 bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info){return false;}
 135 void retro_unload_game(void){}
 136 static int vout_open(void){return 0;}
 137 static void vout_close(void){}
 138 static int snd_init(void){return 0;}
 139 static void snd_finish(void){}
 140 static int snd_busy(void){return 0;}
 141
 142 #define GPU_PEOPS_ODD_EVEN_BIT         (1 << 0)
 143 #define GPU_PEOPS_EXPAND_SCREEN_WIDTH  (1 << 1)
 144 #define GPU_PEOPS_IGNORE_BRIGHTNESS    (1 << 2)
 145 #define GPU_PEOPS_DISABLE_COORD_CHECK  (1 << 3)
 146 #define GPU_PEOPS_LAZY_SCREEN_UPDATE   (1 << 6)
 147 #define GPU_PEOPS_OLD_FRAME_SKIP       (1 << 7)
 148 #define GPU_PEOPS_REPEATED_TRIANGLES   (1 << 8)
 149 #define GPU_PEOPS_QUADS_WITH_TRIANGLES (1 << 9)
 150 #define GPU_PEOPS_FAKE_BUSY_STATE      (1 << 10)
 151
 152 static void init_memcard(char *mcd_data)
 153 {
 154         unsigned off = 0;
 155         unsigned i;
 156
 157         memset(mcd_data, 0, MCD_SIZE);
 158
 159         mcd_data[off++] = 'M';
 160         mcd_data[off++] = 'C';
 161         off += 0x7d;
 162         mcd_data[off++] = 0x0e;
 163
 164         for (i = 0; i < 15; i++) {
 165                 mcd_data[off++] = 0xa0;
 166                 off += 0x07;
 167                 mcd_data[off++] = 0xff;
 168                 mcd_data[off++] = 0xff;
 169                 off += 0x75;
 170                 mcd_data[off++] = 0xa0;
 171         }
 172
 173         for (i = 0; i < 20; i++) {
 174                 mcd_data[off++] = 0xff;
 175                 mcd_data[off++] = 0xff;
 176                 mcd_data[off++] = 0xff;
 177                 mcd_data[off++] = 0xff;
 178                 off += 0x04;
 179                 mcd_data[off++] = 0xff;
 180                 mcd_data[off++] = 0xff;
 181                 off += 0x76;
 182         }
 183 }
 184
 185 static void set_vout_fb()
 186 {
 187   struct retro_framebuffer fb = {0};
 188
 189   fb.width           = vout_width;
 190   fb.height          = vout_height;
 191   fb.access_flags    = RETRO_MEMORY_ACCESS_WRITE;
 192
 193   if (environ_cb(RETRO_ENVIRONMENT_GET_CURRENT_SOFTWARE_FRAMEBUFFER, &fb) && fb.format == RETRO_PIXEL_FORMAT_RGB565)
 194      vout_buf_ptr = (uint16_t*)fb.data;
 195   else
 196      vout_buf_ptr = vout_buf;
 197 }
 198
 199 static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
 200 {
 201   vout_width = w;
 202   vout_height = h;
 203
 204         if (previous_width != vout_width || previous_height != vout_height)
 205         {
 206                 previous_width = vout_width;
 207                 previous_height = vout_height;
 208
 209         struct retro_system_av_info info;
 210         retro_get_system_av_info(&info);
 211         environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &info.geometry);
 212         }
 213
 214   set_vout_fb();
 215 }
 216
 217 #ifndef FRONTEND_SUPPORTS_RGB565
 218 static void convert(void *buf, size_t bytes)
 219 {
 220         unsigned int i, v, *p = buf;
 221
 222         for (i = 0; i < bytes / 4; i++) {
 223                 v = p[i];
 224                 p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
 225         }
 226 }
 227 #endif
 228
 229 static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
 230 {
 231         unsigned short *dest = vout_buf_ptr;
 232         const unsigned short *src = vram;
 233         int dstride = vout_width, h1 = h;
 234         int doffs;
 235
 236         if (vram == NULL) {
 237                 // blanking
 238                 memset(vout_buf_ptr, 0, dstride * h * 2);
 239                 goto out;
 240         }
 241
 242         doffs = (vout_height - h) * dstride;
 243         doffs += (dstride - w) / 2 & ~1;
 244         if (doffs != vout_doffs_old) {
 245                 // clear borders
 246                 memset(vout_buf_ptr, 0, dstride * h * 2);
 247                 vout_doffs_old = doffs;
 248         }
 249         dest += doffs;
 250
 251         if (bgr24)
 252         {
 253                 // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
 254                 for (; h1-- > 0; dest += dstride, src += stride)
 255                 {
 256                         bgr888_to_rgb565(dest, src, w * 3);
 257                 }
 258         }
 259         else
 260         {
 261                 for (; h1-- > 0; dest += dstride, src += stride)
 262                 {
 263                         bgr555_to_rgb565(dest, src, w * 2);
 264                 }
 265         }
 266
 267 out:
 268 #ifndef FRONTEND_SUPPORTS_RGB565
 269         convert(vout_buf_ptr, vout_width * vout_height * 2);
 270 #endif
 271         vout_fb_dirty = 1;
 272         pl_rearmed_cbs.flip_cnt++;
 273 }
 274
 275 #ifdef _3DS
 276 typedef struct
 277 {
 278    void* buffer;
 279    uint32_t target_map;
 280    size_t size;
 281    enum psxMapTag tag;
 282 }psx_map_t;
 283
 284 psx_map_t custom_psx_maps[] = {
 285    {NULL, 0x13000000, 0x210000, MAP_TAG_RAM},   // 0x80000000
 286    {NULL, 0x12800000, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 287    {NULL, 0x12c00000, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 288    {NULL, 0x11000000, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 289    {NULL, 0x12000000, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 290 };
 291
 292 void* pl_3ds_mmap(unsigned long addr, size_t size, int is_fixed,
 293         enum psxMapTag tag)
 294 {
 295    (void)is_fixed;
 296    (void)addr;
 297
 298    if (__ctr_svchax)
 299    {
 300       psx_map_t* custom_map = custom_psx_maps;
 301
 302       for (; custom_map->size; custom_map++)
 303       {
 304          if ((custom_map->size == size) && (custom_map->tag == tag))
 305          {
 306             uint32_t ptr_aligned, tmp;
 307
 308             custom_map->buffer = malloc(size + 0x1000);
 309             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 310
 311             if(svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_MAP, 0x3) < 0)
 312             {
 313                SysPrintf("could not map memory @0x%08X\n", custom_map->target_map);
 314                exit(1);
 315             }
 316
 317             return (void*)custom_map->target_map;
 318          }
 319       }
 320    }
 321
 322    return malloc(size);
 323 }
 324
 325 void pl_3ds_munmap(void *ptr, size_t size, enum psxMapTag tag)
 326 {
 327    (void)tag;
 328
 329    if (__ctr_svchax)
 330    {
 331       psx_map_t* custom_map = custom_psx_maps;
 332
 333       for (; custom_map->size; custom_map++)
 334       {
 335          if ((custom_map->target_map == (uint32_t)ptr))
 336          {
 337             uint32_t ptr_aligned, tmp;
 338
 339             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 340
 341             svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0x3);
 342
 343             free(custom_map->buffer);
 344             custom_map->buffer = NULL;
 345             return;
 346          }
 347       }
 348    }
 349
 350    free(ptr);
 351 }
 352 #endif
 353
 354 #ifdef VITA
 355 typedef struct
 356 {
 357    void* buffer;
 358    uint32_t target_map;
 359    size_t size;
 360    enum psxMapTag tag;
 361 }psx_map_t;
 362
 363 void* addr = NULL;
 364
 365 psx_map_t custom_psx_maps[] = {
 366    {NULL, NULL, 0x210000, MAP_TAG_RAM},   // 0x80000000
 367    {NULL, NULL, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 368    {NULL, NULL, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 369    {NULL, NULL, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 370    {NULL, NULL, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 371 };
 372
 373 int init_vita_mmap(){
 374   int n;
 375   void * tmpaddr;
 376   addr = malloc(64*1024*1024);
 377   if(addr==NULL)
 378     return -1;
 379   tmpaddr = ((u32)(addr+0xFFFFFF))&~0xFFFFFF;
 380   custom_psx_maps[0].buffer=tmpaddr+0x2000000;
 381   custom_psx_maps[1].buffer=tmpaddr+0x1800000;
 382   custom_psx_maps[2].buffer=tmpaddr+0x1c00000;
 383   custom_psx_maps[3].buffer=tmpaddr+0x0000000;
 384   custom_psx_maps[4].buffer=tmpaddr+0x1000000;
 385 #if 0
 386   for(n = 0; n < 5; n++){
 387     sceClibPrintf("addr reserved %x\n",custom_psx_maps[n].buffer);
 388   }
 389 #endif
 390   return 0;
 391 }
 392
 393 void deinit_vita_mmap(){
 394   free(addr);
 395 }
 396
 397 void* pl_vita_mmap(unsigned long addr, size_t size, int is_fixed,
 398         enum psxMapTag tag)
 399 {
 400    (void)is_fixed;
 401    (void)addr;
 402
 403
 404     psx_map_t* custom_map = custom_psx_maps;
 405
 406     for (; custom_map->size; custom_map++)
 407     {
 408        if ((custom_map->size == size) && (custom_map->tag == tag))
 409        {
 410           return custom_map->buffer;
 411        }
 412     }
 413
 414
 415    return malloc(size);
 416 }
 417
 418 void pl_vita_munmap(void *ptr, size_t size, enum psxMapTag tag)
 419 {
 420    (void)tag;
 421
 422    psx_map_t* custom_map = custom_psx_maps;
 423
 424   for (; custom_map->size; custom_map++)
 425   {
 426      if ((custom_map->buffer == ptr))
 427      {
 428         return;
 429      }
 430   }
 431
 432    free(ptr);
 433 }
 434 #endif
 435
 436 static void *pl_mmap(unsigned int size)
 437 {
 438         return psxMap(0, size, 0, MAP_TAG_VRAM);
 439 }
 440
 441 static void pl_munmap(void *ptr, unsigned int size)
 442 {
 443         psxUnmap(ptr, size, MAP_TAG_VRAM);
 444 }
 445
 446 struct rearmed_cbs pl_rearmed_cbs = {
 447         .pl_vout_open = vout_open,
 448         .pl_vout_set_mode = vout_set_mode,
 449         .pl_vout_flip = vout_flip,
 450         .pl_vout_close = vout_close,
 451         .mmap = pl_mmap,
 452         .munmap = pl_munmap,
 453         /* from psxcounters */
 454         .gpu_hcnt = &hSyncCount,
 455         .gpu_frame_count = &frame_counter,
 456 };
 457
 458 void pl_frame_limit(void)
 459 {
 460         /* called once per frame, make psxCpu->Execute() above return */
 461         stop = 1;
 462 }
 463
 464 void pl_timing_prepare(int is_pal)
 465 {
 466         is_pal_mode = is_pal;
 467 }
 468
 469 void plat_trigger_vibrate(int pad, int low, int high)
 470 {
 471         if (!rumble_cb)
 472                 return;
 473
 474         if (in_enable_vibration)
 475         {
 476                 rumble_cb(pad, RETRO_RUMBLE_STRONG, high << 8);
 477                 rumble_cb(pad, RETRO_RUMBLE_WEAK, low ? 0xffff : 0x0);
 478     }
 479 }
 480
 481 void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in)
 482 {
 483 }
 484
 485 /* sound calls */
 486 static void snd_feed(void *buf, int bytes)
 487 {
 488         if (audio_batch_cb != NULL)
 489                 audio_batch_cb(buf, bytes / 4);
 490 }
 491
 492 void out_register_libretro(struct out_driver *drv)
 493 {
 494         drv->name = "libretro";
 495         drv->init = snd_init;
 496         drv->finish = snd_finish;
 497         drv->busy = snd_busy;
 498         drv->feed = snd_feed;
 499 }
 500
 501 /* libretro */
 502 void retro_set_environment(retro_environment_t cb)
 503 {
 504    environ_cb = cb;
 505
 506    if (cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &logging))
 507       log_cb = logging.log;
 508
 509    libretro_set_core_options(environ_cb);
 510 }
 511
 512 void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
 513 void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
 514 void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
 515 void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
 516 void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
 517
 518 unsigned retro_api_version(void)
 519 {
 520         return RETRO_API_VERSION;
 521 }
 522
 523 static int controller_port_variable(unsigned port, struct retro_variable *var)
 524 {
 525         if (port >= PORTS_NUMBER)
 526                 return 0;
 527
 528         if (!environ_cb)
 529                 return 0;
 530
 531         var->value = NULL;
 532         switch (port) {
 533         case 0:
 534                 var->key = "pcsx_rearmed_pad1type";
 535                 break;
 536         case 1:
 537                 var->key = "pcsx_rearmed_pad2type";
 538                 break;
 539         case 2:
 540                 var->key = "pcsx_rearmed_pad3type";
 541                 break;
 542         case 3:
 543                 var->key = "pcsx_rearmed_pad4type";
 544                 break;
 545         case 4:
 546                 var->key = "pcsx_rearmed_pad5type";
 547                 break;
 548         case 5:
 549                 var->key = "pcsx_rearmed_pad6type";
 550                 break;
 551         case 6:
 552                 var->key = "pcsx_rearmed_pad7type";
 553                 break;
 554         case 7:
 555                 var->key = "pcsx_rearmed_pad8type";
 556                 break;
 557         }
 558
 559         return environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, var) || var->value;
 560 }
 561
 562 static void update_controller_port_variable(unsigned port)
 563 {
 564         if (port >= PORTS_NUMBER)
 565                 return;
 566
 567         struct retro_variable var;
 568
 569         if (controller_port_variable(port, &var))
 570         {
 571                 if (strcmp(var.value, "standard") == 0)
 572                         in_type[port] = PSE_PAD_TYPE_STANDARD;
 573                 else if (strcmp(var.value, "analog") == 0)
 574                         in_type[port] = PSE_PAD_TYPE_ANALOGJOY;
 575                 else if (strcmp(var.value, "dualshock") == 0)
 576                         in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 577                 else if (strcmp(var.value, "negcon") == 0)
 578                         in_type[port] = PSE_PAD_TYPE_NEGCON;
 579                 else if (strcmp(var.value, "none") == 0)
 580                         in_type[port] = PSE_PAD_TYPE_NONE;
 581                 // else 'default' case, do nothing
 582         }
 583 }
 584
 585 static void update_controller_port_device(unsigned port, unsigned device)
 586 {
 587         if (port >= PORTS_NUMBER)
 588                 return;
 589
 590         struct retro_variable var;
 591
 592         if (!controller_port_variable(port, &var))
 593                 return;
 594
 595         if (strcmp(var.value, "default") != 0)
 596                 return;
 597
 598         switch (device)
 599         {
 600         case RETRO_DEVICE_JOYPAD:
 601                 in_type[port] = PSE_PAD_TYPE_STANDARD;
 602                 break;
 603         case RETRO_DEVICE_ANALOG:
 604                 in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 605                 break;
 606         case RETRO_DEVICE_MOUSE:
 607                 in_type[port] = PSE_PAD_TYPE_MOUSE;
 608                 break;
 609         case RETRO_DEVICE_LIGHTGUN:
 610                 in_type[port] = PSE_PAD_TYPE_GUN;
 611                 break;
 612         case RETRO_DEVICE_NONE:
 613         default:
 614                 in_type[port] = PSE_PAD_TYPE_NONE;
 615         }
 616 }
 617
 618 static void update_multitap()
 619 {
 620         struct retro_variable var;
 621         int auto_case, port;
 622
 623         var.value = NULL;
 624         var.key = "pcsx_rearmed_multitap1";
 625         auto_case = 0;
 626         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 627         {
 628                 if (strcmp(var.value, "enabled") == 0)
 629                         multitap1 = 1;
 630                 else if (strcmp(var.value, "disabled") == 0)
 631                         multitap1 = 0;
 632                 else // 'auto' case
 633                         auto_case = 1;
 634         }
 635         else
 636                 auto_case = 1;
 637
 638         if (auto_case)
 639         {
 640                 // If a gamepad is plugged after port 2, we need a first multitap.
 641                 multitap1 = 0;
 642                 for (port = 2; port < PORTS_NUMBER; port++)
 643                         multitap1 |= in_type[port] != PSE_PAD_TYPE_NONE;
 644         }
 645
 646         var.value = NULL;
 647         var.key = "pcsx_rearmed_multitap2";
 648         auto_case = 0;
 649         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 650         {
 651                 if (strcmp(var.value, "enabled") == 0)
 652                         multitap2 = 1;
 653                 else if (strcmp(var.value, "disabled") == 0)
 654                         multitap2 = 0;
 655                 else // 'auto' case
 656                         auto_case = 1;
 657         }
 658         else
 659                 auto_case = 1;
 660
 661         if (auto_case)
 662         {
 663                 // If a gamepad is plugged after port 4, we need a second multitap.
 664                 multitap2 = 0;
 665                 for (port = 4; port < PORTS_NUMBER; port++)
 666                         multitap2 |= in_type[port] != PSE_PAD_TYPE_NONE;
 667         }
 668 }
 669
 670 void retro_set_controller_port_device(unsigned port, unsigned device)
 671 {
 672         SysPrintf("port %u  device %u",port,device);
 673
 674         if (port >= PORTS_NUMBER)
 675                 return;
 676
 677         update_controller_port_device(port, device);
 678         update_multitap();
 679 }
 680
 681 void retro_get_system_info(struct retro_system_info *info)
 682 {
 683         memset(info, 0, sizeof(*info));
 684         info->library_name = "PCSX-ReARMed";
 685 #ifndef GIT_VERSION
 686 #define GIT_VERSION ""
 687 #endif
 688         info->library_version = "r22" GIT_VERSION;
 689         info->valid_extensions = "bin|cue|img|mdf|pbp|toc|cbn|m3u|chd";
 690         info->need_fullpath = true;
 691 }
 692
 693 void retro_get_system_av_info(struct retro_system_av_info *info)
 694 {
 695
 696         unsigned geom_height = vout_height > 0 ? vout_height : 240;
 697         unsigned geom_width = vout_width > 0 ? vout_width : 320;
 698
 699         memset(info, 0, sizeof(*info));
 700         info->timing.fps            = is_pal_mode ? 50 : 60;
 701         info->timing.sample_rate    = 44100;
 702         info->geometry.base_width   = geom_width;
 703         info->geometry.base_height  = geom_height;
 704         info->geometry.max_width    = VOUT_MAX_WIDTH;
 705         info->geometry.max_height   = VOUT_MAX_HEIGHT;
 706         info->geometry.aspect_ratio = 4.0 / 3.0;
 707 }
 708
 709 /* savestates */
 710 size_t retro_serialize_size(void)
 711 {
 712         // it's currently 4380651-4397047 bytes,
 713         // but have some reserved for future
 714         return 0x440000;
 715 }
 716
 717 struct save_fp {
 718         char *buf;
 719         size_t pos;
 720         int is_write;
 721 };
 722
 723 static void *save_open(const char *name, const char *mode)
 724 {
 725         struct save_fp *fp;
 726
 727         if (name == NULL || mode == NULL)
 728                 return NULL;
 729
 730         fp = malloc(sizeof(*fp));
 731         if (fp == NULL)
 732                 return NULL;
 733
 734         fp->buf = (char *)name;
 735         fp->pos = 0;
 736         fp->is_write = (mode[0] == 'w' || mode[1] == 'w');
 737
 738         return fp;
 739 }
 740
 741 static int save_read(void *file, void *buf, u32 len)
 742 {
 743         struct save_fp *fp = file;
 744         if (fp == NULL || buf == NULL)
 745                 return -1;
 746
 747         memcpy(buf, fp->buf + fp->pos, len);
 748         fp->pos += len;
 749         return len;
 750 }
 751
 752 static int save_write(void *file, const void *buf, u32 len)
 753 {
 754         struct save_fp *fp = file;
 755         if (fp == NULL || buf == NULL)
 756                 return -1;
 757
 758         memcpy(fp->buf + fp->pos, buf, len);
 759         fp->pos += len;
 760         return len;
 761 }
 762
 763 static long save_seek(void *file, long offs, int whence)
 764 {
 765         struct save_fp *fp = file;
 766         if (fp == NULL)
 767                 return -1;
 768
 769         switch (whence) {
 770         case SEEK_CUR:
 771                 fp->pos += offs;
 772                 return fp->pos;
 773         case SEEK_SET:
 774                 fp->pos = offs;
 775                 return fp->pos;
 776         default:
 777                 return -1;
 778         }
 779 }
 780
 781 static void save_close(void *file)
 782 {
 783         struct save_fp *fp = file;
 784         size_t r_size = retro_serialize_size();
 785         if (fp == NULL)
 786                 return;
 787
 788         if (fp->pos > r_size)
 789                 SysPrintf("ERROR: save buffer overflow detected\n");
 790         else if (fp->is_write && fp->pos < r_size)
 791                 // make sure we don't save trash in leftover space
 792                 memset(fp->buf + fp->pos, 0, r_size - fp->pos);
 793         free(fp);
 794 }
 795
 796 bool retro_serialize(void *data, size_t size)
 797 {
 798         int ret = SaveState(data);
 799         return ret == 0 ? true : false;
 800 }
 801
 802 bool retro_unserialize(const void *data, size_t size)
 803 {
 804         int ret = LoadState(data);
 805         return ret == 0 ? true : false;
 806 }
 807
 808 /* cheats */
 809 void retro_cheat_reset(void)
 810 {
 811         ClearAllCheats();
 812 }
 813
 814 void retro_cheat_set(unsigned index, bool enabled, const char *code)
 815 {
 816         char buf[256];
 817         int ret;
 818
 819         // cheat funcs are destructive, need a copy..
 820         strncpy(buf, code, sizeof(buf));
 821         buf[sizeof(buf) - 1] = 0;
 822
 823         //Prepare buffered cheat for PCSX's AddCheat fucntion.
 824         int cursor=0;
 825         int nonhexdec=0;
 826         while (buf[cursor]){
 827                 if (!(ISHEXDEC)){
 828                         if (++nonhexdec%2){
 829                                 buf[cursor]=' ';
 830                         } else {
 831                                 buf[cursor]='\n';
 832                         }
 833                 }
 834                 cursor++;
 835         }
 836
 837
 838         if (index < NumCheats)
 839                 ret = EditCheat(index, "", buf);
 840         else
 841                 ret = AddCheat("", buf);
 842
 843         if (ret != 0)
 844                 SysPrintf("Failed to set cheat %#u\n", index);
 845         else if (index < NumCheats)
 846                 Cheats[index].Enabled = enabled;
 847 }
 848
 849 /* multidisk support */
 850 static bool disk_ejected;
 851 static unsigned int disk_current_index;
 852 static unsigned int disk_count;
 853 static struct disks_state {
 854         char *fname;
 855         int internal_index; // for multidisk eboots
 856 } disks[8];
 857
 858 static bool disk_set_eject_state(bool ejected)
 859 {
 860         // weird PCSX API..
 861         SetCdOpenCaseTime(ejected ? -1 : (time(NULL) + 2));
 862         LidInterrupt();
 863
 864         disk_ejected = ejected;
 865         return true;
 866 }
 867
 868 static bool disk_get_eject_state(void)
 869 {
 870         /* can't be controlled by emulated software */
 871         return disk_ejected;
 872 }
 873
 874 static unsigned int disk_get_image_index(void)
 875 {
 876         return disk_current_index;
 877 }
 878
 879 static bool disk_set_image_index(unsigned int index)
 880 {
 881         if (index >= sizeof(disks) / sizeof(disks[0]))
 882                 return false;
 883
 884         CdromId[0] = '\0';
 885         CdromLabel[0] = '\0';
 886
 887         if (disks[index].fname == NULL) {
 888                 SysPrintf("missing disk #%u\n", index);
 889                 CDR_shutdown();
 890
 891                 // RetroArch specifies "no disk" with index == count,
 892                 // so don't fail here..
 893                 disk_current_index = index;
 894                 return true;
 895         }
 896
 897         SysPrintf("switching to disk %u: \"%s\" #%d\n", index,
 898                 disks[index].fname, disks[index].internal_index);
 899
 900         cdrIsoMultidiskSelect = disks[index].internal_index;
 901         set_cd_image(disks[index].fname);
 902         if (ReloadCdromPlugin() < 0) {
 903                 SysPrintf("failed to load cdr plugin\n");
 904                 return false;
 905         }
 906         if (CDR_open() < 0) {
 907                 SysPrintf("failed to open cdr plugin\n");
 908                 return false;
 909         }
 910
 911         if (!disk_ejected) {
 912                 SetCdOpenCaseTime(time(NULL) + 2);
 913                 LidInterrupt();
 914         }
 915
 916         disk_current_index = index;
 917         return true;
 918 }
 919
 920 static unsigned int disk_get_num_images(void)
 921 {
 922         return disk_count;
 923 }
 924
 925 static bool disk_replace_image_index(unsigned index,
 926         const struct retro_game_info *info)
 927 {
 928         char *old_fname;
 929         bool ret = true;
 930
 931         if (index >= sizeof(disks) / sizeof(disks[0]))
 932                 return false;
 933
 934         old_fname = disks[index].fname;
 935         disks[index].fname = NULL;
 936         disks[index].internal_index = 0;
 937
 938         if (info != NULL) {
 939                 disks[index].fname = strdup(info->path);
 940                 if (index == disk_current_index)
 941                         ret = disk_set_image_index(index);
 942         }
 943
 944         if (old_fname != NULL)
 945                 free(old_fname);
 946
 947         return ret;
 948 }
 949
 950 static bool disk_add_image_index(void)
 951 {
 952         if (disk_count >= 8)
 953                 return false;
 954
 955         disk_count++;
 956         return true;
 957 }
 958
 959 static struct retro_disk_control_callback disk_control = {
 960         .set_eject_state = disk_set_eject_state,
 961         .get_eject_state = disk_get_eject_state,
 962         .get_image_index = disk_get_image_index,
 963         .set_image_index = disk_set_image_index,
 964         .get_num_images = disk_get_num_images,
 965         .replace_image_index = disk_replace_image_index,
 966         .add_image_index = disk_add_image_index,
 967 };
 968
 969 // just in case, maybe a win-rt port in the future?
 970 #ifdef _WIN32
 971 #define SLASH '\\'
 972 #else
 973 #define SLASH '/'
 974 #endif
 975
 976 #ifndef PATH_MAX
 977 #define PATH_MAX  4096
 978 #endif
 979
 980 static char base_dir[1024];
 981
 982 static bool read_m3u(const char *file)
 983 {
 984         char line[1024];
 985         char name[PATH_MAX];
 986         FILE *f = fopen(file, "r");
 987         if (!f)
 988                 return false;
 989
 990         while (fgets(line, sizeof(line), f) && disk_count < sizeof(disks) / sizeof(disks[0])) {
 991                 if (line[0] == '#')
 992                         continue;
 993                 char *carrige_return = strchr(line, '\r');
 994                 if (carrige_return)
 995                         *carrige_return = '\0';
 996                 char *newline = strchr(line, '\n');
 997                 if (newline)
 998                         *newline = '\0';
 999
1000                 if (line[0] != '\0')
1001                 {
1002                         snprintf(name, sizeof(name), "%s%c%s", base_dir, SLASH, line);
1003                         disks[disk_count++].fname = strdup(name);
1004                 }
1005         }
1006
1007         fclose(f);
1008         return (disk_count != 0);
1009 }
1010
1011 static void extract_directory(char *buf, const char *path, size_t size)
1012 {
1013    char *base;
1014    strncpy(buf, path, size - 1);
1015    buf[size - 1] = '\0';
1016
1017    base = strrchr(buf, '/');
1018    if (!base)
1019       base = strrchr(buf, '\\');
1020
1021    if (base)
1022       *base = '\0';
1023    else
1024    {
1025       buf[0] = '.';
1026       buf[1] = '\0';
1027    }
1028 }
1029
1030 #if defined(__QNX__) || defined(_WIN32)
1031 /* Blackberry QNX doesn't have strcasestr */
1032
1033 /*
1034  * Find the first occurrence of find in s, ignore case.
1035  */
1036 char *
1037 strcasestr(const char *s, const char*find)
1038 {
1039         char c, sc;
1040         size_t len;
1041
1042         if ((c = *find++) != 0) {
1043                 c = tolower((unsigned char)c);
1044                 len = strlen(find);
1045                 do {
1046                         do {
1047                                 if ((sc = *s++) == 0)
1048                                         return (NULL);
1049                         } while ((char)tolower((unsigned char)sc) != c);
1050                 } while (strncasecmp(s, find, len) != 0);
1051                 s--;
1052         }
1053         return ((char *)s);
1054 }
1055 #endif
1056
1057 bool retro_load_game(const struct retro_game_info *info)
1058 {
1059         size_t i;
1060         bool is_m3u = (strcasestr(info->path, ".m3u") != NULL);
1061
1062    struct retro_input_descriptor desc[] = {
1063       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1064       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1065       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1066       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1067       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1068       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1069       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1070       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1071       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1072       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1073       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1074       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1075       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1076       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1077       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1078       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1079       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1080       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1081       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1082       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1083
1084
1085       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1086       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1087       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1088       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1089       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1090       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1091       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1092       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1093       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1094       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1095       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1096       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1097       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1098       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1099       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1100       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1101       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1102       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1103       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1104       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1105
1106       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1107       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1108       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1109       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1110       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1111       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1112       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1113       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1114       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1115       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1116       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1117       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1118       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1119       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1120       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1121       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1122       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1123       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1124       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1125       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1126
1127       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1128       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1129       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1130       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1131       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1132       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1133       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1134       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1135       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1136       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1137       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1138       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1139       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1140       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1141       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1142       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1143       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1144       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1145       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1146       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1147
1148       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1149       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1150       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1151       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1152       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1153       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1154       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1155       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1156       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1157       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1158       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1159       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1160       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1161       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1162       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1163       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1164       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1165       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1166       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1167       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1168
1169       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1170       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1171       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1172       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1173       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1174       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1175       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1176       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1177       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1178       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1179       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1180       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1181       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1182       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1183       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1184       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1185       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1186       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1187       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1188       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1189
1190       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1191       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1192       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1193       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1194       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1195       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1196       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1197       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1198       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1199       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1200       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1201       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1202       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1203       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1204       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1205       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1206       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1207       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1208       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1209       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1210
1211       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1212       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1213       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1214       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1215       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1216       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1217       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1218       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1219       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1220       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1221       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1222       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1223       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1224       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1225       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1226       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1227       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1228       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1229       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1230       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1231
1232       { 0 },
1233    };
1234
1235          frame_count = 0;
1236
1237    environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
1238
1239 #ifdef FRONTEND_SUPPORTS_RGB565
1240         enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
1241         if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
1242                 SysPrintf("RGB565 supported, using it\n");
1243         }
1244 #endif
1245
1246         if (info == NULL || info->path == NULL) {
1247                 SysPrintf("info->path required\n");
1248                 return false;
1249         }
1250
1251         if (plugins_opened) {
1252                 ClosePlugins();
1253                 plugins_opened = 0;
1254         }
1255
1256         for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) {
1257                 if (disks[i].fname != NULL) {
1258                         free(disks[i].fname);
1259                         disks[i].fname = NULL;
1260                 }
1261                 disks[i].internal_index = 0;
1262         }
1263
1264         disk_current_index = 0;
1265         extract_directory(base_dir, info->path, sizeof(base_dir));
1266
1267         if (is_m3u) {
1268                 if (!read_m3u(info->path)) {
1269                         log_cb(RETRO_LOG_INFO, "failed to read m3u file\n");
1270                         return false;
1271                 }
1272         } else {
1273                 disk_count = 1;
1274                 disks[0].fname = strdup(info->path);
1275         }
1276
1277         set_cd_image(disks[0].fname);
1278
1279         /* have to reload after set_cd_image for correct cdr plugin */
1280         if (LoadPlugins() == -1) {
1281                 log_cb(RETRO_LOG_INFO, "failed to load plugins\n");
1282                 return false;
1283         }
1284
1285         plugins_opened = 1;
1286         NetOpened = 0;
1287
1288         if (OpenPlugins() == -1) {
1289                 log_cb(RETRO_LOG_INFO, "failed to open plugins\n");
1290                 return false;
1291         }
1292
1293         plugin_call_rearmed_cbs();
1294         dfinput_activate();
1295
1296         if (CheckCdrom() == -1) {
1297         log_cb(RETRO_LOG_INFO, "unsupported/invalid CD image: %s\n", info->path);
1298                 return false;
1299         }
1300
1301         SysReset();
1302
1303         if (LoadCdrom() == -1) {
1304                 log_cb(RETRO_LOG_INFO, "could not load CD\n");
1305                 return false;
1306         }
1307         emu_on_new_cd(0);
1308
1309         // multidisk images
1310         if (!is_m3u) {
1311                 disk_count = cdrIsoMultidiskCount < 8 ? cdrIsoMultidiskCount : 8;
1312                 for (i = 1; i < sizeof(disks) / sizeof(disks[0]) && i < cdrIsoMultidiskCount; i++) {
1313                         disks[i].fname = strdup(info->path);
1314                         disks[i].internal_index = i;
1315                 }
1316         }
1317
1318         return true;
1319 }
1320
1321 unsigned retro_get_region(void)
1322 {
1323         return is_pal_mode ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
1324 }
1325
1326 void *retro_get_memory_data(unsigned id)
1327 {
1328         if (id == RETRO_MEMORY_SAVE_RAM)
1329                 return Mcd1Data;
1330         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1331                 return psxM;
1332         else
1333                 return NULL;
1334 }
1335
1336 size_t retro_get_memory_size(unsigned id)
1337 {
1338         if (id == RETRO_MEMORY_SAVE_RAM)
1339                 return MCD_SIZE;
1340         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1341                 return 0x200000;
1342         else
1343                 return 0;
1344 }
1345
1346 void retro_reset(void)
1347 {
1348    //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
1349    rebootemu = 1;
1350         //SysReset();
1351 }
1352
1353 static const unsigned short retro_psx_map[] = {
1354         [RETRO_DEVICE_ID_JOYPAD_B]      = 1 << DKEY_CROSS,
1355         [RETRO_DEVICE_ID_JOYPAD_Y]      = 1 << DKEY_SQUARE,
1356         [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT,
1357         [RETRO_DEVICE_ID_JOYPAD_START]  = 1 << DKEY_START,
1358         [RETRO_DEVICE_ID_JOYPAD_UP]     = 1 << DKEY_UP,
1359         [RETRO_DEVICE_ID_JOYPAD_DOWN]   = 1 << DKEY_DOWN,
1360         [RETRO_DEVICE_ID_JOYPAD_LEFT]   = 1 << DKEY_LEFT,
1361         [RETRO_DEVICE_ID_JOYPAD_RIGHT]  = 1 << DKEY_RIGHT,
1362         [RETRO_DEVICE_ID_JOYPAD_A]      = 1 << DKEY_CIRCLE,
1363         [RETRO_DEVICE_ID_JOYPAD_X]      = 1 << DKEY_TRIANGLE,
1364         [RETRO_DEVICE_ID_JOYPAD_L]      = 1 << DKEY_L1,
1365         [RETRO_DEVICE_ID_JOYPAD_R]      = 1 << DKEY_R1,
1366         [RETRO_DEVICE_ID_JOYPAD_L2]     = 1 << DKEY_L2,
1367         [RETRO_DEVICE_ID_JOYPAD_R2]     = 1 << DKEY_R2,
1368         [RETRO_DEVICE_ID_JOYPAD_L3]     = 1 << DKEY_L3,
1369         [RETRO_DEVICE_ID_JOYPAD_R3]     = 1 << DKEY_R3,
1370 };
1371 #define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0]))
1372
1373 static void update_variables(bool in_flight)
1374 {
1375    struct retro_variable var;
1376    int i;
1377    int gpu_peops_fix = 0;
1378
1379    var.value = NULL;
1380    var.key = "pcsx_rearmed_frameskip";
1381    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1382       pl_rearmed_cbs.frameskip = atoi(var.value);
1383
1384    var.value = NULL;
1385    var.key = "pcsx_rearmed_region";
1386    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1387    {
1388       Config.PsxAuto = 0;
1389       if (strcmp(var.value, "auto") == 0)
1390          Config.PsxAuto = 1;
1391       else if (strcmp(var.value, "NTSC") == 0)
1392          Config.PsxType = 0;
1393       else if (strcmp(var.value, "PAL") == 0)
1394          Config.PsxType = 1;
1395    }
1396
1397    for (i = 0; i < PORTS_NUMBER; i++)
1398       update_controller_port_variable(i);
1399
1400    update_multitap();
1401
1402    var.value = NULL;
1403    var.key = "pcsx_rearmed_negcon_deadzone";
1404    negcon_deadzone = 0;
1405    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1406    {
1407       negcon_deadzone = (int)(atoi(var.value) * 0.01f * NEGCON_RANGE);
1408    }
1409
1410    var.value = NULL;
1411    var.key = "pcsx_rearmed_negcon_response";
1412    negcon_linearity = 1;
1413    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1414    {
1415       if (strcmp(var.value, "quadratic") == 0){
1416          negcon_linearity = 2;
1417       } else if (strcmp(var.value, "cubic") == 0){
1418          negcon_linearity = 3;
1419       }
1420    }
1421
1422    var.value = NULL;
1423    var.key = "pcsx_rearmed_vibration";
1424
1425    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1426    {
1427       if (strcmp(var.value, "disabled") == 0)
1428          in_enable_vibration = 0;
1429       else if (strcmp(var.value, "enabled") == 0)
1430          in_enable_vibration = 1;
1431    }
1432
1433    var.value = NULL;
1434    var.key = "pcsx_rearmed_dithering";
1435
1436    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1437    {
1438       if (strcmp(var.value, "disabled") == 0) {
1439          pl_rearmed_cbs.gpu_peops.iUseDither = 0;
1440          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 0;
1441          pl_rearmed_cbs.gpu_unai.dithering = 0;
1442 #ifdef __ARM_NEON__
1443          pl_rearmed_cbs.gpu_neon.allow_dithering = 0;
1444 #endif
1445       }
1446       else if (strcmp(var.value, "enabled") == 0) {
1447          pl_rearmed_cbs.gpu_peops.iUseDither = 1;
1448          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 1;
1449          pl_rearmed_cbs.gpu_unai.dithering = 1;
1450 #ifdef __ARM_NEON__
1451          pl_rearmed_cbs.gpu_neon.allow_dithering = 1;
1452 #endif
1453       }
1454    }
1455
1456 #ifdef __ARM_NEON__
1457    var.value = "NULL";
1458    var.key = "pcsx_rearmed_neon_interlace_enable";
1459
1460    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1461    {
1462       if (strcmp(var.value, "disabled") == 0)
1463          pl_rearmed_cbs.gpu_neon.allow_interlace = 0;
1464       else if (strcmp(var.value, "enabled") == 0)
1465          pl_rearmed_cbs.gpu_neon.allow_interlace = 1;
1466    }
1467
1468    var.value = NULL;
1469    var.key = "pcsx_rearmed_neon_enhancement_enable";
1470
1471    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1472    {
1473       if (strcmp(var.value, "disabled") == 0)
1474          pl_rearmed_cbs.gpu_neon.enhancement_enable = 0;
1475       else if (strcmp(var.value, "enabled") == 0)
1476          pl_rearmed_cbs.gpu_neon.enhancement_enable = 1;
1477    }
1478
1479    var.value = NULL;
1480    var.key = "pcsx_rearmed_neon_enhancement_no_main";
1481
1482    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1483    {
1484       if (strcmp(var.value, "disabled") == 0)
1485          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 0;
1486       else if (strcmp(var.value, "enabled") == 0)
1487          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 1;
1488    }
1489 #endif
1490
1491    var.value = "NULL";
1492    var.key = "pcsx_rearmed_duping_enable";
1493
1494    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1495    {
1496       if (strcmp(var.value, "disabled") == 0)
1497          duping_enable = false;
1498       else if (strcmp(var.value, "enabled") == 0)
1499          duping_enable = true;
1500    }
1501
1502    var.value = "NULL";
1503    var.key = "pcsx_rearmed_display_internal_fps";
1504
1505    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1506    {
1507       if (strcmp(var.value, "disabled") == 0)
1508          display_internal_fps = false;
1509       else if (strcmp(var.value, "enabled") == 0)
1510          display_internal_fps = true;
1511    }
1512
1513 #ifndef DRC_DISABLE
1514    var.value = NULL;
1515    var.key = "pcsx_rearmed_drc";
1516
1517    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1518    {
1519       R3000Acpu *prev_cpu = psxCpu;
1520
1521 #ifdef _3DS
1522       if(!__ctr_svchax)
1523          Config.Cpu = CPU_INTERPRETER;
1524       else
1525 #endif
1526       if (strcmp(var.value, "disabled") == 0)
1527          Config.Cpu = CPU_INTERPRETER;
1528       else if (strcmp(var.value, "enabled") == 0)
1529          Config.Cpu = CPU_DYNAREC;
1530
1531       psxCpu = (Config.Cpu == CPU_INTERPRETER) ? &psxInt : &psxRec;
1532       if (psxCpu != prev_cpu) {
1533          prev_cpu->Shutdown();
1534          psxCpu->Init();
1535          psxCpu->Reset(); // not really a reset..
1536       }
1537    }
1538 #endif
1539
1540    var.value = "NULL";
1541    var.key = "pcsx_rearmed_spu_reverb";
1542
1543    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1544    {
1545       if (strcmp(var.value, "disabled") == 0)
1546          spu_config.iUseReverb = false;
1547       else if (strcmp(var.value, "enabled") == 0)
1548          spu_config.iUseReverb = true;
1549    }
1550
1551    var.value = "NULL";
1552    var.key = "pcsx_rearmed_spu_interpolation";
1553
1554    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1555    {
1556       if (strcmp(var.value, "simple") == 0)
1557          spu_config.iUseInterpolation = 1;
1558       else if (strcmp(var.value, "gaussian") == 0)
1559          spu_config.iUseInterpolation = 2;
1560       else if (strcmp(var.value, "cubic") == 0)
1561          spu_config.iUseInterpolation = 3;
1562       else if (strcmp(var.value, "off") == 0)
1563          spu_config.iUseInterpolation = 0;
1564    }
1565
1566    var.value = "NULL";
1567    var.key = "pcsx_rearmed_pe2_fix";
1568
1569    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1570    {
1571       if (strcmp(var.value, "disabled") == 0)
1572          Config.RCntFix = 0;
1573       else if (strcmp(var.value, "enabled") == 0)
1574          Config.RCntFix = 1;
1575    }
1576
1577    var.value = "NULL";
1578    var.key = "pcsx_rearmed_idiablofix";
1579
1580    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1581    {
1582       if (strcmp(var.value, "disabled") == 0)
1583          spu_config.idiablofix = 0;
1584       else if (strcmp(var.value, "enabled") == 0)
1585          spu_config.idiablofix = 1;
1586    }
1587
1588    var.value = "NULL";
1589    var.key = "pcsx_rearmed_inuyasha_fix";
1590
1591    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1592    {
1593       if (strcmp(var.value, "disabled") == 0)
1594          Config.VSyncWA = 0;
1595       else if (strcmp(var.value, "enabled") == 0)
1596          Config.VSyncWA = 1;
1597    }
1598
1599    var.value = NULL;
1600    var.key = "pcsx_rearmed_noxadecoding";
1601    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1602    {
1603       if (strcmp(var.value, "disabled") == 0)
1604          Config.Xa = 1;
1605       else
1606          Config.Xa = 0;
1607    }
1608
1609    var.value = NULL;
1610    var.key = "pcsx_rearmed_nocdaudio";
1611    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1612    {
1613       if (strcmp(var.value, "disabled") == 0)
1614          Config.Cdda = 1;
1615       else
1616          Config.Cdda = 0;
1617    }
1618
1619 #ifndef DRC_DISABLE
1620    var.value = NULL;
1621    var.key = "pcsx_rearmed_nosmccheck";
1622    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1623    {
1624       if (strcmp(var.value, "enabled") == 0)
1625          new_dynarec_hacks |= NDHACK_NO_SMC_CHECK;
1626       else
1627          new_dynarec_hacks &= ~NDHACK_NO_SMC_CHECK;
1628    }
1629
1630    var.value = NULL;
1631    var.key = "pcsx_rearmed_gteregsunneeded";
1632    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1633    {
1634       if (strcmp(var.value, "enabled") == 0)
1635          new_dynarec_hacks |= NDHACK_GTE_UNNEEDED;
1636       else
1637          new_dynarec_hacks &= ~NDHACK_GTE_UNNEEDED;
1638    }
1639
1640    var.value = NULL;
1641    var.key = "pcsx_rearmed_nogteflags";
1642    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1643    {
1644       if (strcmp(var.value, "enabled") == 0)
1645          new_dynarec_hacks |= NDHACK_GTE_NO_FLAGS;
1646       else
1647          new_dynarec_hacks &= ~NDHACK_GTE_NO_FLAGS;
1648    }
1649 #endif
1650
1651 #ifdef GPU_PEOPS
1652    var.value = "NULL";
1653    var.key = "pcsx_rearmed_gpu_peops_odd_even_bit";
1654
1655    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1656    {
1657       if (strcmp(var.value, "enabled") == 0)
1658          gpu_peops_fix |= GPU_PEOPS_ODD_EVEN_BIT;
1659    }
1660
1661    var.value = "NULL";
1662    var.key = "pcsx_rearmed_gpu_peops_expand_screen_width";
1663
1664    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1665    {
1666       if (strcmp(var.value, "enabled") == 0)
1667          gpu_peops_fix |= GPU_PEOPS_EXPAND_SCREEN_WIDTH;
1668    }
1669
1670    var.value = "NULL";
1671    var.key = "pcsx_rearmed_gpu_peops_ignore_brightness";
1672
1673    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1674    {
1675       if (strcmp(var.value, "enabled") == 0)
1676          gpu_peops_fix |= GPU_PEOPS_IGNORE_BRIGHTNESS;
1677    }
1678
1679    var.value = "NULL";
1680    var.key = "pcsx_rearmed_gpu_peops_disable_coord_check";
1681
1682    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1683    {
1684       if (strcmp(var.value, "enabled") == 0)
1685          gpu_peops_fix |= GPU_PEOPS_DISABLE_COORD_CHECK;
1686    }
1687
1688    var.value = "NULL";
1689    var.key = "pcsx_rearmed_gpu_peops_lazy_screen_update";
1690
1691    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1692    {
1693       if (strcmp(var.value, "enabled") == 0)
1694          gpu_peops_fix |= GPU_PEOPS_LAZY_SCREEN_UPDATE;
1695    }
1696
1697    var.value = "NULL";
1698    var.key = "pcsx_rearmed_gpu_peops_old_frame_skip";
1699
1700    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1701    {
1702       if (strcmp(var.value, "enabled") == 0)
1703          gpu_peops_fix |= GPU_PEOPS_OLD_FRAME_SKIP;
1704    }
1705
1706    var.value = "NULL";
1707    var.key = "pcsx_rearmed_gpu_peops_repeated_triangles";
1708
1709    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1710    {
1711       if (strcmp(var.value, "enabled") == 0)
1712          gpu_peops_fix |= GPU_PEOPS_REPEATED_TRIANGLES;
1713    }
1714
1715    var.value = "NULL";
1716    var.key = "pcsx_rearmed_gpu_peops_quads_with_triangles";
1717
1718    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1719    {
1720       if (strcmp(var.value, "enabled") == 0)
1721          gpu_peops_fix |= GPU_PEOPS_QUADS_WITH_TRIANGLES;
1722    }
1723
1724    var.value = "NULL";
1725    var.key = "pcsx_rearmed_gpu_peops_fake_busy_state";
1726
1727    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1728    {
1729       if (strcmp(var.value, "enabled") == 0)
1730          gpu_peops_fix |= GPU_PEOPS_FAKE_BUSY_STATE;
1731    }
1732
1733    if (pl_rearmed_cbs.gpu_peops.dwActFixes != gpu_peops_fix)
1734       pl_rearmed_cbs.gpu_peops.dwActFixes = gpu_peops_fix;
1735
1736
1737    /* Show/hide core options */
1738
1739    var.key = "pcsx_rearmed_show_gpu_peops_settings";
1740    var.value = NULL;
1741
1742    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1743    {
1744       int show_advanced_gpu_peops_settings_prev = show_advanced_gpu_peops_settings;
1745
1746       show_advanced_gpu_peops_settings = 1;
1747       if (strcmp(var.value, "disabled") == 0)
1748          show_advanced_gpu_peops_settings = 0;
1749
1750       if (show_advanced_gpu_peops_settings != show_advanced_gpu_peops_settings_prev)
1751       {
1752          unsigned i;
1753          struct retro_core_option_display option_display;
1754          char gpu_peops_option[9][45] = {
1755             "pcsx_rearmed_gpu_peops_odd_even_bit",
1756             "pcsx_rearmed_gpu_peops_expand_screen_width",
1757             "pcsx_rearmed_gpu_peops_ignore_brightness",
1758             "pcsx_rearmed_gpu_peops_disable_coord_check",
1759             "pcsx_rearmed_gpu_peops_lazy_screen_update",
1760             "pcsx_rearmed_gpu_peops_old_frame_skip",
1761             "pcsx_rearmed_gpu_peops_repeated_triangles",
1762             "pcsx_rearmed_gpu_peops_quads_with_triangles",
1763             "pcsx_rearmed_gpu_peops_fake_busy_state",
1764          };
1765
1766          option_display.visible = show_advanced_gpu_peops_settings;
1767
1768          for (i = 0; i < 9; i++)
1769          {
1770             option_display.key = gpu_peops_option[i];
1771             environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
1772          }
1773       }
1774    }
1775 #endif
1776
1777 #ifdef GPU_UNAI
1778    var.key = "pcsx_rearmed_gpu_unai_ilace_force";
1779    var.value = NULL;
1780
1781    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1782    {
1783       if (strcmp(var.value, "disabled") == 0)
1784          pl_rearmed_cbs.gpu_unai.ilace_force = 0;
1785       else if (strcmp(var.value, "enabled") == 0)
1786          pl_rearmed_cbs.gpu_unai.ilace_force = 1;
1787    }
1788
1789    var.key = "pcsx_rearmed_gpu_unai_pixel_skip";
1790    var.value = NULL;
1791
1792    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1793    {
1794       if (strcmp(var.value, "disabled") == 0)
1795          pl_rearmed_cbs.gpu_unai.pixel_skip = 0;
1796       else if (strcmp(var.value, "enabled") == 0)
1797          pl_rearmed_cbs.gpu_unai.pixel_skip = 1;
1798    }
1799
1800    var.key = "pcsx_rearmed_gpu_unai_lighting";
1801    var.value = NULL;
1802
1803    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1804    {
1805       if (strcmp(var.value, "disabled") == 0)
1806          pl_rearmed_cbs.gpu_unai.lighting = 0;
1807       else if (strcmp(var.value, "enabled") == 0)
1808          pl_rearmed_cbs.gpu_unai.lighting = 1;
1809    }
1810
1811    var.key = "pcsx_rearmed_gpu_unai_fast_lighting";
1812    var.value = NULL;
1813
1814    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1815    {
1816       if (strcmp(var.value, "disabled") == 0)
1817          pl_rearmed_cbs.gpu_unai.fast_lighting = 0;
1818       else if (strcmp(var.value, "enabled") == 0)
1819          pl_rearmed_cbs.gpu_unai.fast_lighting = 1;
1820    }
1821
1822    var.key = "pcsx_rearmed_gpu_unai_blending";
1823    var.value = NULL;
1824
1825    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1826    {
1827       if (strcmp(var.value, "disabled") == 0)
1828          pl_rearmed_cbs.gpu_unai.blending = 0;
1829       else if (strcmp(var.value, "enabled") == 0)
1830          pl_rearmed_cbs.gpu_unai.blending = 1;
1831    }
1832
1833    var.key = "pcsx_rearmed_show_gpu_unai_settings";
1834    var.value = NULL;
1835
1836    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1837    {
1838       int show_advanced_gpu_unai_settings_prev = show_advanced_gpu_unai_settings;
1839
1840       show_advanced_gpu_unai_settings = 1;
1841       if (strcmp(var.value, "disabled") == 0)
1842          show_advanced_gpu_unai_settings = 0;
1843
1844       if (show_advanced_gpu_unai_settings != show_advanced_gpu_unai_settings_prev)
1845       {
1846          unsigned i;
1847          struct retro_core_option_display option_display;
1848          char gpu_unai_option[5][40] = {
1849             "pcsx_rearmed_gpu_unai_blending",
1850             "pcsx_rearmed_gpu_unai_lighting",
1851             "pcsx_rearmed_gpu_unai_fast_lighting",
1852             "pcsx_rearmed_gpu_unai_ilace_force",
1853             "pcsx_rearmed_gpu_unai_pixel_skip",
1854          };
1855
1856          option_display.visible = show_advanced_gpu_unai_settings;
1857
1858          for (i = 0; i < 5; i++)
1859          {
1860             option_display.key = gpu_unai_option[i];
1861             environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
1862          }
1863       }
1864    }
1865 #endif // GPU_UNAI
1866
1867    if (in_flight) {
1868       // inform core things about possible config changes
1869       plugin_call_rearmed_cbs();
1870
1871       if (GPU_open != NULL && GPU_close != NULL) {
1872          GPU_close();
1873          GPU_open(&gpuDisp, "PCSX", NULL);
1874       }
1875
1876       dfinput_activate();
1877    }
1878    else
1879    {
1880       //not yet running
1881
1882       //bootlogo display hack
1883       if (found_bios) {
1884          var.value = "NULL";
1885          var.key = "pcsx_rearmed_show_bios_bootlogo";
1886          if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1887          {
1888             Config.SlowBoot = 0;
1889             rebootemu = 0;
1890             if (strcmp(var.value, "enabled") == 0)
1891             {
1892                Config.SlowBoot = 1;
1893                rebootemu = 1;
1894             }
1895          }
1896       }
1897 #ifndef DRC_DISABLE
1898       var.value = "NULL";
1899       var.key = "pcsx_rearmed_psxclock";
1900       if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1901       {
1902          int psxclock = atoi(var.value);
1903          cycle_multiplier = 10000 / psxclock;
1904       }
1905 #endif
1906    }
1907 }
1908
1909 // Taken from beetle-psx-libretro
1910 static uint16_t get_analog_button(int16_t ret, retro_input_state_t input_state_cb, int player_index, int id)
1911 {
1912         // NOTE: Analog buttons were added Nov 2017. Not all front-ends support this
1913         // feature (or pre-date it) so we need to handle this in a graceful way.
1914
1915         // First, try and get an analog value using the new libretro API constant
1916         uint16_t button = input_state_cb(player_index,
1917                                                                         RETRO_DEVICE_ANALOG,
1918                                                                         RETRO_DEVICE_INDEX_ANALOG_BUTTON,
1919                                                                         id);
1920         button = MIN(button / 128, 255);
1921
1922         if (button == 0)
1923         {
1924                 // If we got exactly zero, we're either not pressing the button, or the front-end
1925                 // is not reporting analog values. We need to do a second check using the classic
1926                 // digital API method, to at least get some response - better than nothing.
1927
1928                 // NOTE: If we're really just not holding the button, we're still going to get zero.
1929
1930                 button = (ret & (1 << id)) ? 255 : 0;
1931         }
1932
1933         return button;
1934 }
1935
1936 void retro_run(void)
1937 {
1938         int i;
1939         //SysReset must be run while core is running,Not in menu (Locks up Retroarch)
1940         if (rebootemu != 0) {
1941                 rebootemu = 0;
1942                 SysReset();
1943                 if (!Config.HLE && !Config.SlowBoot) {
1944                         // skip BIOS logos
1945                         psxRegs.pc = psxRegs.GPR.n.ra;
1946                 }
1947         }
1948
1949         if (display_internal_fps) {
1950                 frame_count++;
1951
1952                 if (frame_count % INTERNAL_FPS_SAMPLE_PERIOD == 0) {
1953                         unsigned internal_fps = pl_rearmed_cbs.flip_cnt * (is_pal_mode ? 50 : 60) / INTERNAL_FPS_SAMPLE_PERIOD;
1954                         char str[64];
1955                         const char *strc = (const char*)str;
1956                         struct retro_message msg =
1957                         {
1958                                 strc,
1959                                 180
1960                         };
1961
1962                         str[0] = '\0';
1963
1964                         snprintf(str, sizeof(str), "Internal FPS: %2d", internal_fps);
1965
1966                         pl_rearmed_cbs.flip_cnt = 0;
1967
1968                         environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &msg);
1969                 }
1970         }
1971    else
1972                 frame_count = 0;
1973
1974         input_poll_cb();
1975
1976         bool updated = false;
1977         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
1978                 update_variables(true);
1979
1980         // reset all keystate, query libretro for keystate
1981         int j;
1982         int lsx;
1983         int rsy;
1984         float negcon_twist_amplitude;
1985         int negcon_i_rs;
1986         int negcon_ii_rs;
1987         for(i = 0; i < PORTS_NUMBER; i++)
1988    {
1989       int16_t ret    = 0;
1990                 in_keystate[i] = 0;
1991
1992                 if (in_type[i] == PSE_PAD_TYPE_NONE)
1993                         continue;
1994
1995       if (libretro_supports_bitmasks)
1996          ret = input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
1997       else
1998       {
1999          unsigned j;
2000          for (j = 0; j < (RETRO_DEVICE_ID_JOYPAD_R3+1); j++)
2001          {
2002             if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, j))
2003                ret |= (1 << j);
2004          }
2005       }
2006
2007                 if (in_type[i] == PSE_PAD_TYPE_NEGCON)
2008                 {
2009                         // Query digital inputs
2010                         //
2011                         // > Pad-Up
2012                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_UP))
2013                                 in_keystate[i] |= (1 << DKEY_UP);
2014                         // > Pad-Right
2015                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT))
2016                                 in_keystate[i] |= (1 << DKEY_RIGHT);
2017                         // > Pad-Down
2018                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN))
2019                                 in_keystate[i] |= (1 << DKEY_DOWN);
2020                         // > Pad-Left
2021                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT))
2022                                 in_keystate[i] |= (1 << DKEY_LEFT);
2023                         // > Start
2024                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
2025                                 in_keystate[i] |= (1 << DKEY_START);
2026                         // > neGcon A
2027                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_A))
2028                                 in_keystate[i] |= (1 << DKEY_CIRCLE);
2029                         // > neGcon B
2030                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_X))
2031                                 in_keystate[i] |= (1 << DKEY_TRIANGLE);
2032                         // > neGcon R shoulder (digital)
2033                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_R))
2034                                 in_keystate[i] |= (1 << DKEY_R1);
2035                         // Query analog inputs
2036                         //
2037                         // From studying 'libpcsxcore/plugins.c' and 'frontend/plugin.c':
2038                         // >> pad->leftJoyX  == in_analog_left[i][0]  == NeGcon II
2039                         // >> pad->leftJoyY  == in_analog_left[i][1]  == NeGcon L
2040                         // >> pad->rightJoyX == in_analog_right[i][0] == NeGcon twist
2041                         // >> pad->rightJoyY == in_analog_right[i][1] == NeGcon I
2042                         // So we just have to map in_analog_left/right to more
2043                         // appropriate inputs...
2044                         //
2045                         // > NeGcon twist
2046                         // >> Get raw analog stick value and account for deadzone
2047                         lsx = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X);
2048                         if (lsx > negcon_deadzone)
2049                                 lsx = lsx - negcon_deadzone;
2050                         else if (lsx < -negcon_deadzone)
2051                                 lsx = lsx + negcon_deadzone;
2052                         else
2053                                 lsx = 0;
2054                         // >> Convert to an 'amplitude' [-1.0,1.0] and adjust response
2055                         negcon_twist_amplitude = (float)lsx / (float)(NEGCON_RANGE - negcon_deadzone);
2056                         if (negcon_linearity == 2)
2057          {
2058                                 if (negcon_twist_amplitude < 0.0)
2059                                         negcon_twist_amplitude = -(negcon_twist_amplitude * negcon_twist_amplitude);
2060             else
2061                                         negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude;
2062                         }
2063          else if (negcon_linearity == 3)
2064                                 negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude * negcon_twist_amplitude;
2065                         // >> Convert to final 'in_analog' integer value [0,255]
2066                         in_analog_right[i][0] = MAX(MIN((int)(negcon_twist_amplitude * 128.0f) + 128, 255), 0);
2067                         // > NeGcon I + II
2068                         // >> Handle right analog stick vertical axis mapping...
2069                         //    - Up (-Y) == accelerate == neGcon I
2070                         //    - Down (+Y) == brake == neGcon II
2071                         negcon_i_rs = 0;
2072                         negcon_ii_rs = 0;
2073                         rsy = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y);
2074                         if (rsy >= 0){
2075                                 // Account for deadzone
2076                                 // (Note: have never encountered a gamepad with significant differences
2077                                 // in deadzone between left/right analog sticks, so use the regular 'twist'
2078                                 // deadzone here)
2079                                 if (rsy > negcon_deadzone)
2080                                         rsy = rsy - negcon_deadzone;
2081             else
2082                                         rsy = 0;
2083                                 // Convert to 'in_analog' integer value [0,255]
2084                                 negcon_ii_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2085                         } else {
2086                                 if (rsy < -negcon_deadzone)
2087                                         rsy = -1 * (rsy + negcon_deadzone);
2088             else
2089                                         rsy = 0;
2090                                 negcon_i_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2091                         }
2092                         // >> NeGcon I
2093                         in_analog_right[i][1] = MAX(
2094                                 MAX(
2095                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_R2),
2096                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_B)
2097                                 ),
2098                                 negcon_i_rs
2099                         );
2100                         // >> NeGcon II
2101                         in_analog_left[i][0] = MAX(
2102                                 MAX(
2103                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L2),
2104                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_Y)
2105                                 ),
2106                                 negcon_ii_rs
2107                         );
2108                         // > NeGcon L
2109                         in_analog_left[i][1] = get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L);
2110                 }
2111                 else
2112                 {
2113                         // Query digital inputs
2114                         for (j = 0; j < RETRO_PSX_MAP_LEN; j++)
2115                                 if (ret & (1 << j))
2116                                         in_keystate[i] |= retro_psx_map[j];
2117
2118                         // Query analog inputs
2119                         if (in_type[i] == PSE_PAD_TYPE_ANALOGJOY || in_type[i] == PSE_PAD_TYPE_ANALOGPAD)
2120                         {
2121                                 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);
2122                                 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);
2123                                 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);
2124                                 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);
2125                         }
2126                 }
2127         }
2128
2129         stop = 0;
2130         psxCpu->Execute();
2131
2132         video_cb((vout_fb_dirty || !vout_can_dupe || !duping_enable) ? vout_buf_ptr : NULL,
2133                 vout_width, vout_height, vout_width * 2);
2134         vout_fb_dirty = 0;
2135
2136     set_vout_fb();
2137 }
2138
2139 static bool try_use_bios(const char *path)
2140 {
2141         FILE *f;
2142         long size;
2143         const char *name;
2144
2145         f = fopen(path, "rb");
2146         if (f == NULL)
2147                 return false;
2148
2149         fseek(f, 0, SEEK_END);
2150         size = ftell(f);
2151         fclose(f);
2152
2153         if (size != 512 * 1024)
2154                 return false;
2155
2156         name = strrchr(path, SLASH);
2157         if (name++ == NULL)
2158                 name = path;
2159         snprintf(Config.Bios, sizeof(Config.Bios), "%s", name);
2160         return true;
2161 }
2162
2163 #ifndef VITA
2164 #include <sys/types.h>
2165 #include <dirent.h>
2166
2167 static bool find_any_bios(const char *dirpath, char *path, size_t path_size)
2168 {
2169         DIR *dir;
2170         struct dirent *ent;
2171         bool ret = false;
2172
2173         dir = opendir(dirpath);
2174         if (dir == NULL)
2175                 return false;
2176
2177         while ((ent = readdir(dir))) {
2178                 if ((strncasecmp(ent->d_name, "scph", 4) != 0) && (strncasecmp(ent->d_name, "psx", 3) != 0))
2179                         continue;
2180
2181                 snprintf(path, path_size, "%s%c%s", dirpath, SLASH, ent->d_name);
2182                 ret = try_use_bios(path);
2183                 if (ret)
2184                         break;
2185         }
2186         closedir(dir);
2187         return ret;
2188 }
2189 #else
2190 #define find_any_bios(...) false
2191 #endif
2192
2193 static void check_system_specs(void)
2194 {
2195    unsigned level = 6;
2196    environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
2197 }
2198
2199 static int init_memcards(void)
2200 {
2201         int ret = 0;
2202         const char *dir;
2203         struct retro_variable var = { .key="pcsx_rearmed_memcard2", .value=NULL };
2204         static const char CARD2_FILE[] = "pcsx-card2.mcd";
2205
2206         // Memcard2 will be handled and is re-enabled if needed using core
2207         // operations.
2208         // Memcard1 is handled by libretro, doing this will set core to
2209         // skip file io operations for memcard1 like SaveMcd
2210         snprintf(Config.Mcd1, sizeof(Config.Mcd1), "none");
2211         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "none");
2212         init_memcard(Mcd1Data);
2213         // Memcard 2 is managed by the emulator on the filesystem,
2214         // There is no need to initialize Mcd2Data like Mcd1Data.
2215
2216         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2217                 SysPrintf("Memcard 2: %s\n", var.value);
2218                 if (memcmp(var.value, "enabled", 7) == 0) {
2219                         if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir) {
2220                                 if (strlen(dir) + strlen(CARD2_FILE) + 2 > sizeof(Config.Mcd2)) {
2221                                         SysPrintf("Path '%s' is too long. Cannot use memcard 2. Use a shorter path.\n", dir);
2222                                         ret = -1;
2223                                 } else {
2224                                         McdDisable[1] = 0;
2225                                         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "%s/%s", dir, CARD2_FILE);
2226                                         SysPrintf("Use memcard 2: %s\n", Config.Mcd2);
2227                                 }
2228                         } else {
2229                                 SysPrintf("Could not get save directory! Could not create memcard 2.");
2230                                 ret = -1;
2231                         }
2232                 }
2233         }
2234         return ret;
2235 }
2236
2237 static void loadPSXBios(void)
2238 {
2239         const char *dir;
2240         char path[PATH_MAX];
2241         unsigned useHLE = 0;
2242
2243         const char *bios[] = {
2244                 "PSXONPSP660", "psxonpsp660",
2245                 "SCPH101", "scph101",
2246                 "SCPH5501", "scph5501",
2247                 "SCPH7001", "scph7001",
2248                 "SCPH1001", "scph1001"
2249         };
2250
2251         struct retro_variable var = {
2252                 .key = "pcsx_rearmed_bios",
2253                 .value = NULL
2254         };
2255
2256         found_bios = 0;
2257
2258         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2259                 if (!strcmp(var.value, "HLE"))
2260                         useHLE = 1;
2261         }
2262
2263         if (!useHLE)
2264         {
2265                 if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
2266                 {
2267                         unsigned i;
2268                         snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s", dir);
2269
2270                         for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) {
2271                                 snprintf(path, sizeof(path), "%s%c%s.bin", dir, SLASH, bios[i]);
2272                                 found_bios = try_use_bios(path);
2273                                 if (found_bios)
2274                                         break;
2275                         }
2276
2277                         if (!found_bios)
2278                                 found_bios = find_any_bios(dir, path, sizeof(path));
2279                 }
2280                 if (found_bios) {
2281                         SysPrintf("found BIOS file: %s\n", Config.Bios);
2282                 }
2283         }
2284
2285         if (useHLE || !found_bios)
2286         {
2287                 SysPrintf("no BIOS files found.\n");
2288                 struct retro_message msg =
2289                 {
2290                         "No PlayStation BIOS file found - add for better compatibility",
2291                         180
2292                 };
2293                 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, (void*)&msg);
2294         }
2295 }
2296
2297 void retro_init(void)
2298 {
2299         struct retro_rumble_interface rumble;
2300         int ret;
2301
2302 #ifdef __MACH__
2303         // magic sauce to make the dynarec work on iOS
2304         syscall(SYS_ptrace, 0 /*PTRACE_TRACEME*/, 0, 0, 0);
2305 #endif
2306
2307 #ifdef _3DS
2308    psxMapHook = pl_3ds_mmap;
2309    psxUnmapHook = pl_3ds_munmap;
2310 #endif
2311 #ifdef VITA
2312    if(init_vita_mmap()<0)
2313       abort();
2314    psxMapHook = pl_vita_mmap;
2315    psxUnmapHook = pl_vita_munmap;
2316 #endif
2317         ret = emu_core_preinit();
2318 #ifdef _3DS
2319    /* emu_core_preinit sets the cpu to dynarec */
2320    if(!__ctr_svchax)
2321       Config.Cpu = CPU_INTERPRETER;
2322 #endif
2323         ret |= init_memcards();
2324
2325         ret |= emu_core_init();
2326         if (ret != 0) {
2327                 SysPrintf("PCSX init failed.\n");
2328                 exit(1);
2329         }
2330
2331 #ifdef _3DS
2332    vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80);
2333 #elif defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L) && !defined(VITA) && !defined(__SWITCH__)
2334         posix_memalign(&vout_buf, 16, VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2335 #else
2336         vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2337 #endif
2338
2339         vout_buf_ptr = vout_buf;
2340
2341         loadPSXBios();
2342
2343         environ_cb(RETRO_ENVIRONMENT_GET_CAN_DUPE, &vout_can_dupe);
2344         environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control);
2345
2346         rumble_cb = NULL;
2347         if (environ_cb(RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE, &rumble))
2348                 rumble_cb = rumble.set_rumble_state;
2349
2350         /* Set how much slower PSX CPU runs * 100 (so that 200 is 2 times)
2351          * we have to do this because cache misses and some IO penalties
2352          * are not emulated. Warning: changing this may break compatibility. */
2353         cycle_multiplier = 175;
2354 #ifdef HAVE_PRE_ARMV7
2355         cycle_multiplier = 200;
2356 #endif
2357         pl_rearmed_cbs.gpu_peops.iUseDither = 1;
2358         pl_rearmed_cbs.gpu_peops.dwActFixes = GPU_PEOPS_OLD_FRAME_SKIP;
2359         spu_config.iUseFixedUpdates = 1;
2360
2361         SaveFuncs.open = save_open;
2362         SaveFuncs.read = save_read;
2363         SaveFuncs.write = save_write;
2364         SaveFuncs.seek = save_seek;
2365         SaveFuncs.close = save_close;
2366
2367    if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL))
2368       libretro_supports_bitmasks = true;
2369
2370         update_variables(false);
2371         check_system_specs();
2372 }
2373
2374 void retro_deinit(void)
2375 {
2376         ClosePlugins();
2377         SysClose();
2378 #ifdef _3DS
2379    linearFree(vout_buf);
2380 #else
2381         free(vout_buf);
2382 #endif
2383         vout_buf = NULL;
2384
2385 #ifdef VITA
2386   deinit_vita_mmap();
2387 #endif
2388    libretro_supports_bitmasks = false;
2389 }
2390
2391 #ifdef VITA
2392 #include <psp2/kernel/threadmgr.h>
2393 int usleep (unsigned long us)
2394 {
2395    sceKernelDelayThread(us);
2396 }
2397 #endif
2398
2399 void SysPrintf(const char *fmt, ...) {
2400         va_list list;
2401         char msg[512];
2402
2403         va_start(list, fmt);
2404         vsprintf(msg, fmt, list);
2405         va_end(list);
2406
2407         if (log_cb)
2408                 log_cb(RETRO_LOG_INFO, "%s", msg);
2409 }