frontend/libretro.c

   1 /*
   2  * (C) notaz, 2012,2014,2015
   3  *
   4  * This work is licensed under the terms of the GNU GPLv2 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #define _GNU_SOURCE 1 // strcasestr
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <strings.h>
  13 #ifdef __MACH__
  14 #include <unistd.h>
  15 #include <sys/syscall.h>
  16 #endif
  17
  18 #include "../libpcsxcore/misc.h"
  19 #include "../libpcsxcore/psxcounters.h"
  20 #include "../libpcsxcore/psxmem_map.h"
  21 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
  22 #include "../libpcsxcore/cdrom.h"
  23 #include "../libpcsxcore/cdriso.h"
  24 #include "../libpcsxcore/cheat.h"
  25 #include "../libpcsxcore/r3000a.h"
  26 #include "../plugins/dfsound/out.h"
  27 #include "../plugins/dfsound/spu_config.h"
  28 #include "../plugins/dfinput/externals.h"
  29 #include "cspace.h"
  30 #include "main.h"
  31 #include "menu.h"
  32 #include "plugin.h"
  33 #include "plugin_lib.h"
  34 #include "arm_features.h"
  35 #include "revision.h"
  36
  37 #include <libretro.h>
  38 #include "libretro_core_options.h"
  39
  40 #ifdef _3DS
  41 #include "3ds/3ds_utils.h"
  42 #endif
  43
  44 #define PORTS_NUMBER 8
  45
  46 #ifndef MIN
  47 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  48 #endif
  49
  50 #ifndef MAX
  51 #define MAX(a, b) ((a) > (b) ? (a) : (b))
  52 #endif
  53
  54 #define ISHEXDEC ((buf[cursor]>='0') && (buf[cursor]<='9')) || ((buf[cursor]>='a') && (buf[cursor]<='f')) || ((buf[cursor]>='A') && (buf[cursor]<='F'))
  55
  56 #define INTERNAL_FPS_SAMPLE_PERIOD 64
  57
  58 //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
  59 static int rebootemu = 0;
  60
  61 static retro_video_refresh_t video_cb;
  62 static retro_input_poll_t input_poll_cb;
  63 static retro_input_state_t input_state_cb;
  64 static retro_environment_t environ_cb;
  65 static retro_audio_sample_batch_t audio_batch_cb;
  66 static retro_set_rumble_state_t rumble_cb;
  67 static struct retro_log_callback logging;
  68 static retro_log_printf_t log_cb;
  69
  70 static void *vout_buf;
  71 static void * vout_buf_ptr;
  72 static int vout_width, vout_height;
  73 static int vout_doffs_old, vout_fb_dirty;
  74 static bool vout_can_dupe;
  75 static bool duping_enable;
  76 static bool found_bios;
  77 static bool display_internal_fps = false;
  78 static unsigned frame_count = 0;
  79 static bool libretro_supports_bitmasks = false;
  80 static int show_advanced_gpu_peops_settings = -1;
  81
  82 static unsigned previous_width = 0;
  83 static unsigned previous_height = 0;
  84
  85 static int plugins_opened;
  86 static int is_pal_mode;
  87
  88 /* memory card data */
  89 extern char Mcd1Data[MCD_SIZE];
  90 extern char Mcd2Data[MCD_SIZE];
  91 extern char McdDisable[2];
  92
  93 /* PCSX ReARMed core calls and stuff */
  94 int in_type[8] =  { PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
  95                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
  96                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
  97                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE };
  98 int in_analog_left[8][2] = {{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 }};
  99 int in_analog_right[8][2] = {{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 }};
 100 unsigned short in_keystate[PORTS_NUMBER];
 101 int multitap1 = 0;
 102 int multitap2 = 0;
 103 int in_enable_vibration = 1;
 104
 105 // NegCon adjustment parameters
 106 // > The NegCon 'twist' action is somewhat awkward when mapped
 107 //   to a standard analog stick -> user should be able to tweak
 108 //   response/deadzone for comfort
 109 // > When response is linear, 'additional' deadzone (set here)
 110 //   may be left at zero, since this is normally handled via in-game
 111 //   options menus
 112 // > When response is non-linear, deadzone should be set to match the
 113 //   controller being used (otherwise precision may be lost)
 114 // > negcon_linearity:
 115 //   - 1: Response is linear - recommended when using racing wheel
 116 //        peripherals, not recommended for standard gamepads
 117 //   - 2: Response is quadratic - optimal setting for gamepads
 118 //   - 3: Response is cubic - enables precise fine control, but
 119 //        difficult to use...
 120 #define NEGCON_RANGE 0x7FFF
 121 static int negcon_deadzone = 0;
 122 static int negcon_linearity = 1;
 123
 124 /* PSX max resolution is 640x512, but with enhancement it's 1024x512 */
 125 #define VOUT_MAX_WIDTH 1024
 126 #define VOUT_MAX_HEIGHT 512
 127
 128 //Dummy functions
 129 bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info){return false;}
 130 void retro_unload_game(void){}
 131 static int vout_open(void){return 0;}
 132 static void vout_close(void){}
 133 static int snd_init(void){return 0;}
 134 static void snd_finish(void){}
 135 static int snd_busy(void){return 0;}
 136
 137 #define GPU_PEOPS_ODD_EVEN_BIT         (1 << 0)
 138 #define GPU_PEOPS_EXPAND_SCREEN_WIDTH  (1 << 1)
 139 #define GPU_PEOPS_IGNORE_BRIGHTNESS    (1 << 2)
 140 #define GPU_PEOPS_DISABLE_COORD_CHECK  (1 << 3)
 141 #define GPU_PEOPS_LAZY_SCREEN_UPDATE   (1 << 6)
 142 #define GPU_PEOPS_OLD_FRAME_SKIP       (1 << 7)
 143 #define GPU_PEOPS_REPEATED_TRIANGLES   (1 << 8)
 144 #define GPU_PEOPS_QUADS_WITH_TRIANGLES (1 << 9)
 145 #define GPU_PEOPS_FAKE_BUSY_STATE      (1 << 10)
 146
 147 static void init_memcard(char *mcd_data)
 148 {
 149         unsigned off = 0;
 150         unsigned i;
 151
 152         memset(mcd_data, 0, MCD_SIZE);
 153
 154         mcd_data[off++] = 'M';
 155         mcd_data[off++] = 'C';
 156         off += 0x7d;
 157         mcd_data[off++] = 0x0e;
 158
 159         for (i = 0; i < 15; i++) {
 160                 mcd_data[off++] = 0xa0;
 161                 off += 0x07;
 162                 mcd_data[off++] = 0xff;
 163                 mcd_data[off++] = 0xff;
 164                 off += 0x75;
 165                 mcd_data[off++] = 0xa0;
 166         }
 167
 168         for (i = 0; i < 20; i++) {
 169                 mcd_data[off++] = 0xff;
 170                 mcd_data[off++] = 0xff;
 171                 mcd_data[off++] = 0xff;
 172                 mcd_data[off++] = 0xff;
 173                 off += 0x04;
 174                 mcd_data[off++] = 0xff;
 175                 mcd_data[off++] = 0xff;
 176                 off += 0x76;
 177         }
 178 }
 179
 180 static void set_vout_fb()
 181 {
 182   struct retro_framebuffer fb = {0};
 183
 184   fb.width           = vout_width;
 185   fb.height          = vout_height;
 186   fb.access_flags    = RETRO_MEMORY_ACCESS_WRITE;
 187
 188   if (environ_cb(RETRO_ENVIRONMENT_GET_CURRENT_SOFTWARE_FRAMEBUFFER, &fb) && fb.format == RETRO_PIXEL_FORMAT_RGB565)
 189      vout_buf_ptr = (uint16_t*)fb.data;
 190   else
 191      vout_buf_ptr = vout_buf;
 192 }
 193
 194 static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
 195 {
 196   vout_width = w;
 197   vout_height = h;
 198
 199         if (previous_width != vout_width || previous_height != vout_height)
 200         {
 201                 previous_width = vout_width;
 202                 previous_height = vout_height;
 203
 204         struct retro_system_av_info info;
 205         retro_get_system_av_info(&info);
 206         environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &info.geometry);
 207         }
 208
 209   set_vout_fb();
 210 }
 211
 212 #ifndef FRONTEND_SUPPORTS_RGB565
 213 static void convert(void *buf, size_t bytes)
 214 {
 215         unsigned int i, v, *p = buf;
 216
 217         for (i = 0; i < bytes / 4; i++) {
 218                 v = p[i];
 219                 p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
 220         }
 221 }
 222 #endif
 223
 224 static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
 225 {
 226         unsigned short *dest = vout_buf_ptr;
 227         const unsigned short *src = vram;
 228         int dstride = vout_width, h1 = h;
 229         int doffs;
 230
 231         if (vram == NULL) {
 232                 // blanking
 233                 memset(vout_buf_ptr, 0, dstride * h * 2);
 234                 goto out;
 235         }
 236
 237         doffs = (vout_height - h) * dstride;
 238         doffs += (dstride - w) / 2 & ~1;
 239         if (doffs != vout_doffs_old) {
 240                 // clear borders
 241                 memset(vout_buf_ptr, 0, dstride * h * 2);
 242                 vout_doffs_old = doffs;
 243         }
 244         dest += doffs;
 245
 246         if (bgr24)
 247         {
 248                 // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
 249                 for (; h1-- > 0; dest += dstride, src += stride)
 250                 {
 251                         bgr888_to_rgb565(dest, src, w * 3);
 252                 }
 253         }
 254         else
 255         {
 256                 for (; h1-- > 0; dest += dstride, src += stride)
 257                 {
 258                         bgr555_to_rgb565(dest, src, w * 2);
 259                 }
 260         }
 261
 262 out:
 263 #ifndef FRONTEND_SUPPORTS_RGB565
 264         convert(vout_buf_ptr, vout_width * vout_height * 2);
 265 #endif
 266         vout_fb_dirty = 1;
 267         pl_rearmed_cbs.flip_cnt++;
 268 }
 269
 270 #ifdef _3DS
 271 typedef struct
 272 {
 273    void* buffer;
 274    uint32_t target_map;
 275    size_t size;
 276    enum psxMapTag tag;
 277 }psx_map_t;
 278
 279 psx_map_t custom_psx_maps[] = {
 280    {NULL, 0x13000000, 0x210000, MAP_TAG_RAM},   // 0x80000000
 281    {NULL, 0x12800000, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 282    {NULL, 0x12c00000, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 283    {NULL, 0x11000000, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 284    {NULL, 0x12000000, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 285 };
 286
 287 void* pl_3ds_mmap(unsigned long addr, size_t size, int is_fixed,
 288         enum psxMapTag tag)
 289 {
 290    (void)is_fixed;
 291    (void)addr;
 292
 293    if (__ctr_svchax)
 294    {
 295       psx_map_t* custom_map = custom_psx_maps;
 296
 297       for (; custom_map->size; custom_map++)
 298       {
 299          if ((custom_map->size == size) && (custom_map->tag == tag))
 300          {
 301             uint32_t ptr_aligned, tmp;
 302
 303             custom_map->buffer = malloc(size + 0x1000);
 304             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 305
 306             if(svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_MAP, 0x3) < 0)
 307             {
 308                SysPrintf("could not map memory @0x%08X\n", custom_map->target_map);
 309                exit(1);
 310             }
 311
 312             return (void*)custom_map->target_map;
 313          }
 314       }
 315    }
 316
 317    return malloc(size);
 318 }
 319
 320 void pl_3ds_munmap(void *ptr, size_t size, enum psxMapTag tag)
 321 {
 322    (void)tag;
 323
 324    if (__ctr_svchax)
 325    {
 326       psx_map_t* custom_map = custom_psx_maps;
 327
 328       for (; custom_map->size; custom_map++)
 329       {
 330          if ((custom_map->target_map == (uint32_t)ptr))
 331          {
 332             uint32_t ptr_aligned, tmp;
 333
 334             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 335
 336             svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0x3);
 337
 338             free(custom_map->buffer);
 339             custom_map->buffer = NULL;
 340             return;
 341          }
 342       }
 343    }
 344
 345    free(ptr);
 346 }
 347 #endif
 348
 349 #ifdef VITA
 350 typedef struct
 351 {
 352    void* buffer;
 353    uint32_t target_map;
 354    size_t size;
 355    enum psxMapTag tag;
 356 }psx_map_t;
 357
 358 void* addr = NULL;
 359
 360 psx_map_t custom_psx_maps[] = {
 361    {NULL, NULL, 0x210000, MAP_TAG_RAM},   // 0x80000000
 362    {NULL, NULL, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 363    {NULL, NULL, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 364    {NULL, NULL, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 365    {NULL, NULL, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 366 };
 367
 368 int init_vita_mmap(){
 369   int n;
 370   void * tmpaddr;
 371   addr = malloc(64*1024*1024);
 372   if(addr==NULL)
 373     return -1;
 374   tmpaddr = ((u32)(addr+0xFFFFFF))&~0xFFFFFF;
 375   custom_psx_maps[0].buffer=tmpaddr+0x2000000;
 376   custom_psx_maps[1].buffer=tmpaddr+0x1800000;
 377   custom_psx_maps[2].buffer=tmpaddr+0x1c00000;
 378   custom_psx_maps[3].buffer=tmpaddr+0x0000000;
 379   custom_psx_maps[4].buffer=tmpaddr+0x1000000;
 380 #if 0
 381   for(n = 0; n < 5; n++){
 382     sceClibPrintf("addr reserved %x\n",custom_psx_maps[n].buffer);
 383   }
 384 #endif
 385   return 0;
 386 }
 387
 388 void deinit_vita_mmap(){
 389   free(addr);
 390 }
 391
 392 void* pl_vita_mmap(unsigned long addr, size_t size, int is_fixed,
 393         enum psxMapTag tag)
 394 {
 395    (void)is_fixed;
 396    (void)addr;
 397
 398
 399     psx_map_t* custom_map = custom_psx_maps;
 400
 401     for (; custom_map->size; custom_map++)
 402     {
 403        if ((custom_map->size == size) && (custom_map->tag == tag))
 404        {
 405           return custom_map->buffer;
 406        }
 407     }
 408
 409
 410    return malloc(size);
 411 }
 412
 413 void pl_vita_munmap(void *ptr, size_t size, enum psxMapTag tag)
 414 {
 415    (void)tag;
 416
 417    psx_map_t* custom_map = custom_psx_maps;
 418
 419   for (; custom_map->size; custom_map++)
 420   {
 421      if ((custom_map->buffer == ptr))
 422      {
 423         return;
 424      }
 425   }
 426
 427    free(ptr);
 428 }
 429 #endif
 430
 431 static void *pl_mmap(unsigned int size)
 432 {
 433         return psxMap(0, size, 0, MAP_TAG_VRAM);
 434 }
 435
 436 static void pl_munmap(void *ptr, unsigned int size)
 437 {
 438         psxUnmap(ptr, size, MAP_TAG_VRAM);
 439 }
 440
 441 struct rearmed_cbs pl_rearmed_cbs = {
 442         .pl_vout_open = vout_open,
 443         .pl_vout_set_mode = vout_set_mode,
 444         .pl_vout_flip = vout_flip,
 445         .pl_vout_close = vout_close,
 446         .mmap = pl_mmap,
 447         .munmap = pl_munmap,
 448         /* from psxcounters */
 449         .gpu_hcnt = &hSyncCount,
 450         .gpu_frame_count = &frame_counter,
 451 };
 452
 453 void pl_frame_limit(void)
 454 {
 455         /* called once per frame, make psxCpu->Execute() above return */
 456         stop = 1;
 457 }
 458
 459 void pl_timing_prepare(int is_pal)
 460 {
 461         is_pal_mode = is_pal;
 462 }
 463
 464 void plat_trigger_vibrate(int pad, int low, int high)
 465 {
 466         if (!rumble_cb)
 467                 return;
 468
 469         if (in_enable_vibration)
 470         {
 471                 rumble_cb(pad, RETRO_RUMBLE_STRONG, high << 8);
 472                 rumble_cb(pad, RETRO_RUMBLE_WEAK, low ? 0xffff : 0x0);
 473     }
 474 }
 475
 476 void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in)
 477 {
 478 }
 479
 480 /* sound calls */
 481 static void snd_feed(void *buf, int bytes)
 482 {
 483         if (audio_batch_cb != NULL)
 484                 audio_batch_cb(buf, bytes / 4);
 485 }
 486
 487 void out_register_libretro(struct out_driver *drv)
 488 {
 489         drv->name = "libretro";
 490         drv->init = snd_init;
 491         drv->finish = snd_finish;
 492         drv->busy = snd_busy;
 493         drv->feed = snd_feed;
 494 }
 495
 496 /* libretro */
 497 void retro_set_environment(retro_environment_t cb)
 498 {
 499    environ_cb = cb;
 500
 501    if (cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &logging))
 502       log_cb = logging.log;
 503
 504    libretro_set_core_options(environ_cb);
 505 }
 506
 507 void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
 508 void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
 509 void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
 510 void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
 511 void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
 512
 513 unsigned retro_api_version(void)
 514 {
 515         return RETRO_API_VERSION;
 516 }
 517
 518 static int controller_port_variable(unsigned port, struct retro_variable *var)
 519 {
 520         if (port >= PORTS_NUMBER)
 521                 return 0;
 522
 523         if (!environ_cb)
 524                 return 0;
 525
 526         var->value = NULL;
 527         switch (port) {
 528         case 0:
 529                 var->key = "pcsx_rearmed_pad1type";
 530                 break;
 531         case 1:
 532                 var->key = "pcsx_rearmed_pad2type";
 533                 break;
 534         case 2:
 535                 var->key = "pcsx_rearmed_pad3type";
 536                 break;
 537         case 3:
 538                 var->key = "pcsx_rearmed_pad4type";
 539                 break;
 540         case 4:
 541                 var->key = "pcsx_rearmed_pad5type";
 542                 break;
 543         case 5:
 544                 var->key = "pcsx_rearmed_pad6type";
 545                 break;
 546         case 6:
 547                 var->key = "pcsx_rearmed_pad7type";
 548                 break;
 549         case 7:
 550                 var->key = "pcsx_rearmed_pad8type";
 551                 break;
 552         }
 553
 554         return environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, var) || var->value;
 555 }
 556
 557 static void update_controller_port_variable(unsigned port)
 558 {
 559         if (port >= PORTS_NUMBER)
 560                 return;
 561
 562         struct retro_variable var;
 563
 564         if (controller_port_variable(port, &var))
 565         {
 566                 if (strcmp(var.value, "standard") == 0)
 567                         in_type[port] = PSE_PAD_TYPE_STANDARD;
 568                 else if (strcmp(var.value, "analog") == 0)
 569                         in_type[port] = PSE_PAD_TYPE_ANALOGJOY;
 570                 else if (strcmp(var.value, "dualshock") == 0)
 571                         in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 572                 else if (strcmp(var.value, "negcon") == 0)
 573                         in_type[port] = PSE_PAD_TYPE_NEGCON;
 574                 else if (strcmp(var.value, "guncon") == 0)
 575                         in_type[port] = PSE_PAD_TYPE_GUNCON;
 576                 else if (strcmp(var.value, "none") == 0)
 577                         in_type[port] = PSE_PAD_TYPE_NONE;
 578                 // else 'default' case, do nothing
 579         }
 580 }
 581
 582 static void update_controller_port_device(unsigned port, unsigned device)
 583 {
 584         if (port >= PORTS_NUMBER)
 585                 return;
 586
 587         struct retro_variable var;
 588
 589         if (!controller_port_variable(port, &var))
 590                 return;
 591
 592         if (strcmp(var.value, "default") != 0)
 593                 return;
 594
 595         switch (device)
 596         {
 597         case RETRO_DEVICE_JOYPAD:
 598                 in_type[port] = PSE_PAD_TYPE_STANDARD;
 599                 break;
 600         case RETRO_DEVICE_ANALOG:
 601                 in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 602                 break;
 603         case RETRO_DEVICE_MOUSE:
 604                 in_type[port] = PSE_PAD_TYPE_MOUSE;
 605                 break;
 606         case RETRO_DEVICE_LIGHTGUN:
 607                 in_type[port] = PSE_PAD_TYPE_GUN;
 608                 break;
 609         case RETRO_DEVICE_NONE:
 610         default:
 611                 in_type[port] = PSE_PAD_TYPE_NONE;
 612         }
 613 }
 614
 615 static void update_multitap()
 616 {
 617         struct retro_variable var;
 618         int auto_case, port;
 619
 620         var.value = NULL;
 621         var.key = "pcsx_rearmed_multitap1";
 622         auto_case = 0;
 623         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 624         {
 625                 if (strcmp(var.value, "enabled") == 0)
 626                         multitap1 = 1;
 627                 else if (strcmp(var.value, "disabled") == 0)
 628                         multitap1 = 0;
 629                 else // 'auto' case
 630                         auto_case = 1;
 631         }
 632         else
 633                 auto_case = 1;
 634
 635         if (auto_case)
 636         {
 637                 // If a gamepad is plugged after port 2, we need a first multitap.
 638                 multitap1 = 0;
 639                 for (port = 2; port < PORTS_NUMBER; port++)
 640                         multitap1 |= in_type[port] != PSE_PAD_TYPE_NONE;
 641         }
 642
 643         var.value = NULL;
 644         var.key = "pcsx_rearmed_multitap2";
 645         auto_case = 0;
 646         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 647         {
 648                 if (strcmp(var.value, "enabled") == 0)
 649                         multitap2 = 1;
 650                 else if (strcmp(var.value, "disabled") == 0)
 651                         multitap2 = 0;
 652                 else // 'auto' case
 653                         auto_case = 1;
 654         }
 655         else
 656                 auto_case = 1;
 657
 658         if (auto_case)
 659         {
 660                 // If a gamepad is plugged after port 4, we need a second multitap.
 661                 multitap2 = 0;
 662                 for (port = 4; port < PORTS_NUMBER; port++)
 663                         multitap2 |= in_type[port] != PSE_PAD_TYPE_NONE;
 664         }
 665 }
 666
 667 void retro_set_controller_port_device(unsigned port, unsigned device)
 668 {
 669         SysPrintf("port %u  device %u",port,device);
 670
 671         if (port >= PORTS_NUMBER)
 672                 return;
 673
 674         update_controller_port_device(port, device);
 675         update_multitap();
 676 }
 677
 678 void retro_get_system_info(struct retro_system_info *info)
 679 {
 680         memset(info, 0, sizeof(*info));
 681         info->library_name = "PCSX-ReARMed";
 682 #ifndef GIT_VERSION
 683 #define GIT_VERSION ""
 684 #endif
 685         info->library_version = "r22" GIT_VERSION;
 686         info->valid_extensions = "bin|cue|img|mdf|pbp|toc|cbn|m3u|chd";
 687         info->need_fullpath = true;
 688 }
 689
 690 void retro_get_system_av_info(struct retro_system_av_info *info)
 691 {
 692
 693         unsigned geom_height = vout_height > 0 ? vout_height : 240;
 694         unsigned geom_width = vout_width > 0 ? vout_width : 320;
 695
 696         memset(info, 0, sizeof(*info));
 697         info->timing.fps            = is_pal_mode ? 50 : 60;
 698         info->timing.sample_rate    = 44100;
 699         info->geometry.base_width   = geom_width;
 700         info->geometry.base_height  = geom_height;
 701         info->geometry.max_width    = VOUT_MAX_WIDTH;
 702         info->geometry.max_height   = VOUT_MAX_HEIGHT;
 703         info->geometry.aspect_ratio = 4.0 / 3.0;
 704 }
 705
 706 /* savestates */
 707 size_t retro_serialize_size(void)
 708 {
 709         // it's currently 4380651-4397047 bytes,
 710         // but have some reserved for future
 711         return 0x440000;
 712 }
 713
 714 struct save_fp {
 715         char *buf;
 716         size_t pos;
 717         int is_write;
 718 };
 719
 720 static void *save_open(const char *name, const char *mode)
 721 {
 722         struct save_fp *fp;
 723
 724         if (name == NULL || mode == NULL)
 725                 return NULL;
 726
 727         fp = malloc(sizeof(*fp));
 728         if (fp == NULL)
 729                 return NULL;
 730
 731         fp->buf = (char *)name;
 732         fp->pos = 0;
 733         fp->is_write = (mode[0] == 'w' || mode[1] == 'w');
 734
 735         return fp;
 736 }
 737
 738 static int save_read(void *file, void *buf, u32 len)
 739 {
 740         struct save_fp *fp = file;
 741         if (fp == NULL || buf == NULL)
 742                 return -1;
 743
 744         memcpy(buf, fp->buf + fp->pos, len);
 745         fp->pos += len;
 746         return len;
 747 }
 748
 749 static int save_write(void *file, const void *buf, u32 len)
 750 {
 751         struct save_fp *fp = file;
 752         if (fp == NULL || buf == NULL)
 753                 return -1;
 754
 755         memcpy(fp->buf + fp->pos, buf, len);
 756         fp->pos += len;
 757         return len;
 758 }
 759
 760 static long save_seek(void *file, long offs, int whence)
 761 {
 762         struct save_fp *fp = file;
 763         if (fp == NULL)
 764                 return -1;
 765
 766         switch (whence) {
 767         case SEEK_CUR:
 768                 fp->pos += offs;
 769                 return fp->pos;
 770         case SEEK_SET:
 771                 fp->pos = offs;
 772                 return fp->pos;
 773         default:
 774                 return -1;
 775         }
 776 }
 777
 778 static void save_close(void *file)
 779 {
 780         struct save_fp *fp = file;
 781         size_t r_size = retro_serialize_size();
 782         if (fp == NULL)
 783                 return;
 784
 785         if (fp->pos > r_size)
 786                 SysPrintf("ERROR: save buffer overflow detected\n");
 787         else if (fp->is_write && fp->pos < r_size)
 788                 // make sure we don't save trash in leftover space
 789                 memset(fp->buf + fp->pos, 0, r_size - fp->pos);
 790         free(fp);
 791 }
 792
 793 bool retro_serialize(void *data, size_t size)
 794 {
 795         int ret = SaveState(data);
 796         return ret == 0 ? true : false;
 797 }
 798
 799 bool retro_unserialize(const void *data, size_t size)
 800 {
 801         int ret = LoadState(data);
 802         return ret == 0 ? true : false;
 803 }
 804
 805 /* cheats */
 806 void retro_cheat_reset(void)
 807 {
 808         ClearAllCheats();
 809 }
 810
 811 void retro_cheat_set(unsigned index, bool enabled, const char *code)
 812 {
 813         char buf[256];
 814         int ret;
 815
 816         // cheat funcs are destructive, need a copy..
 817         strncpy(buf, code, sizeof(buf));
 818         buf[sizeof(buf) - 1] = 0;
 819
 820         //Prepare buffered cheat for PCSX's AddCheat fucntion.
 821         int cursor=0;
 822         int nonhexdec=0;
 823         while (buf[cursor]){
 824                 if (!(ISHEXDEC)){
 825                         if (++nonhexdec%2){
 826                                 buf[cursor]=' ';
 827                         } else {
 828                                 buf[cursor]='\n';
 829                         }
 830                 }
 831                 cursor++;
 832         }
 833
 834
 835         if (index < NumCheats)
 836                 ret = EditCheat(index, "", buf);
 837         else
 838                 ret = AddCheat("", buf);
 839
 840         if (ret != 0)
 841                 SysPrintf("Failed to set cheat %#u\n", index);
 842         else if (index < NumCheats)
 843                 Cheats[index].Enabled = enabled;
 844 }
 845
 846 /* multidisk support */
 847 static bool disk_ejected;
 848 static unsigned int disk_current_index;
 849 static unsigned int disk_count;
 850 static struct disks_state {
 851         char *fname;
 852         int internal_index; // for multidisk eboots
 853 } disks[8];
 854
 855 static bool disk_set_eject_state(bool ejected)
 856 {
 857         // weird PCSX API..
 858         SetCdOpenCaseTime(ejected ? -1 : (time(NULL) + 2));
 859         LidInterrupt();
 860
 861         disk_ejected = ejected;
 862         return true;
 863 }
 864
 865 static bool disk_get_eject_state(void)
 866 {
 867         /* can't be controlled by emulated software */
 868         return disk_ejected;
 869 }
 870
 871 static unsigned int disk_get_image_index(void)
 872 {
 873         return disk_current_index;
 874 }
 875
 876 static bool disk_set_image_index(unsigned int index)
 877 {
 878         if (index >= sizeof(disks) / sizeof(disks[0]))
 879                 return false;
 880
 881         CdromId[0] = '\0';
 882         CdromLabel[0] = '\0';
 883
 884         if (disks[index].fname == NULL) {
 885                 SysPrintf("missing disk #%u\n", index);
 886                 CDR_shutdown();
 887
 888                 // RetroArch specifies "no disk" with index == count,
 889                 // so don't fail here..
 890                 disk_current_index = index;
 891                 return true;
 892         }
 893
 894         SysPrintf("switching to disk %u: \"%s\" #%d\n", index,
 895                 disks[index].fname, disks[index].internal_index);
 896
 897         cdrIsoMultidiskSelect = disks[index].internal_index;
 898         set_cd_image(disks[index].fname);
 899         if (ReloadCdromPlugin() < 0) {
 900                 SysPrintf("failed to load cdr plugin\n");
 901                 return false;
 902         }
 903         if (CDR_open() < 0) {
 904                 SysPrintf("failed to open cdr plugin\n");
 905                 return false;
 906         }
 907
 908         if (!disk_ejected) {
 909                 SetCdOpenCaseTime(time(NULL) + 2);
 910                 LidInterrupt();
 911         }
 912
 913         disk_current_index = index;
 914         return true;
 915 }
 916
 917 static unsigned int disk_get_num_images(void)
 918 {
 919         return disk_count;
 920 }
 921
 922 static bool disk_replace_image_index(unsigned index,
 923         const struct retro_game_info *info)
 924 {
 925         char *old_fname;
 926         bool ret = true;
 927
 928         if (index >= sizeof(disks) / sizeof(disks[0]))
 929                 return false;
 930
 931         old_fname = disks[index].fname;
 932         disks[index].fname = NULL;
 933         disks[index].internal_index = 0;
 934
 935         if (info != NULL) {
 936                 disks[index].fname = strdup(info->path);
 937                 if (index == disk_current_index)
 938                         ret = disk_set_image_index(index);
 939         }
 940
 941         if (old_fname != NULL)
 942                 free(old_fname);
 943
 944         return ret;
 945 }
 946
 947 static bool disk_add_image_index(void)
 948 {
 949         if (disk_count >= 8)
 950                 return false;
 951
 952         disk_count++;
 953         return true;
 954 }
 955
 956 static struct retro_disk_control_callback disk_control = {
 957         .set_eject_state = disk_set_eject_state,
 958         .get_eject_state = disk_get_eject_state,
 959         .get_image_index = disk_get_image_index,
 960         .set_image_index = disk_set_image_index,
 961         .get_num_images = disk_get_num_images,
 962         .replace_image_index = disk_replace_image_index,
 963         .add_image_index = disk_add_image_index,
 964 };
 965
 966 // just in case, maybe a win-rt port in the future?
 967 #ifdef _WIN32
 968 #define SLASH '\\'
 969 #else
 970 #define SLASH '/'
 971 #endif
 972
 973 #ifndef PATH_MAX
 974 #define PATH_MAX  4096
 975 #endif
 976
 977 static char base_dir[1024];
 978
 979 static bool read_m3u(const char *file)
 980 {
 981         char line[1024];
 982         char name[PATH_MAX];
 983         FILE *f = fopen(file, "r");
 984         if (!f)
 985                 return false;
 986
 987         while (fgets(line, sizeof(line), f) && disk_count < sizeof(disks) / sizeof(disks[0])) {
 988                 if (line[0] == '#')
 989                         continue;
 990                 char *carrige_return = strchr(line, '\r');
 991                 if (carrige_return)
 992                         *carrige_return = '\0';
 993                 char *newline = strchr(line, '\n');
 994                 if (newline)
 995                         *newline = '\0';
 996
 997                 if (line[0] != '\0')
 998                 {
 999                         snprintf(name, sizeof(name), "%s%c%s", base_dir, SLASH, line);
1000                         disks[disk_count++].fname = strdup(name);
1001                 }
1002         }
1003
1004         fclose(f);
1005         return (disk_count != 0);
1006 }
1007
1008 static void extract_directory(char *buf, const char *path, size_t size)
1009 {
1010    char *base;
1011    strncpy(buf, path, size - 1);
1012    buf[size - 1] = '\0';
1013
1014    base = strrchr(buf, '/');
1015    if (!base)
1016       base = strrchr(buf, '\\');
1017
1018    if (base)
1019       *base = '\0';
1020    else
1021    {
1022       buf[0] = '.';
1023       buf[1] = '\0';
1024    }
1025 }
1026
1027 #if defined(__QNX__) || defined(_WIN32)
1028 /* Blackberry QNX doesn't have strcasestr */
1029
1030 /*
1031  * Find the first occurrence of find in s, ignore case.
1032  */
1033 char *
1034 strcasestr(const char *s, const char*find)
1035 {
1036         char c, sc;
1037         size_t len;
1038
1039         if ((c = *find++) != 0) {
1040                 c = tolower((unsigned char)c);
1041                 len = strlen(find);
1042                 do {
1043                         do {
1044                                 if ((sc = *s++) == 0)
1045                                         return (NULL);
1046                         } while ((char)tolower((unsigned char)sc) != c);
1047                 } while (strncasecmp(s, find, len) != 0);
1048                 s--;
1049         }
1050         return ((char *)s);
1051 }
1052 #endif
1053
1054 bool retro_load_game(const struct retro_game_info *info)
1055 {
1056         size_t i;
1057         bool is_m3u = (strcasestr(info->path, ".m3u") != NULL);
1058
1059    struct retro_input_descriptor desc[] = {
1060       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1061       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1062       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1063       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1064       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1065       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1066       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1067       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1068       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1069       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1070       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1071       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1072       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1073       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1074       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1075       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1076       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1077       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1078       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1079       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1080
1081
1082       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1083       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1084       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1085       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1086       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1087       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1088       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1089       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1090       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1091       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1092       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1093       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1094       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1095       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1096       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1097       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1098       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1099       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1100       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1101       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1102
1103       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1104       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1105       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1106       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1107       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1108       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1109       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1110       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1111       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1112       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1113       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1114       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1115       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1116       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1117       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1118       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1119       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1120       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1121       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1122       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1123
1124       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1125       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1126       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1127       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1128       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1129       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1130       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1131       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1132       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1133       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1134       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1135       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1136       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1137       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1138       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1139       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1140       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1141       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1142       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1143       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1144
1145       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1146       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1147       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1148       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1149       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1150       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1151       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1152       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1153       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1154       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1155       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1156       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1157       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1158       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1159       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1160       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1161       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1162       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1163       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1164       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1165
1166       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1167       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1168       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1169       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1170       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1171       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1172       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1173       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1174       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1175       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1176       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1177       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1178       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1179       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1180       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1181       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1182       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1183       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1184       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1185       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1186
1187       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1188       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1189       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1190       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1191       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1192       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1193       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1194       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1195       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1196       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1197       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1198       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1199       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1200       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1201       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1202       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1203       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1204       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1205       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1206       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1207
1208       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1209       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1210       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1211       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1212       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1213       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1214       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1215       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1216       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1217       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1218       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1219       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1220       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1221       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1222       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1223       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1224       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1225       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1226       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1227       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1228
1229       { 0 },
1230    };
1231
1232          frame_count = 0;
1233
1234    environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
1235
1236 #ifdef FRONTEND_SUPPORTS_RGB565
1237         enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
1238         if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
1239                 SysPrintf("RGB565 supported, using it\n");
1240         }
1241 #endif
1242
1243         if (info == NULL || info->path == NULL) {
1244                 SysPrintf("info->path required\n");
1245                 return false;
1246         }
1247
1248         if (plugins_opened) {
1249                 ClosePlugins();
1250                 plugins_opened = 0;
1251         }
1252
1253         for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) {
1254                 if (disks[i].fname != NULL) {
1255                         free(disks[i].fname);
1256                         disks[i].fname = NULL;
1257                 }
1258                 disks[i].internal_index = 0;
1259         }
1260
1261         disk_current_index = 0;
1262         extract_directory(base_dir, info->path, sizeof(base_dir));
1263
1264         if (is_m3u) {
1265                 if (!read_m3u(info->path)) {
1266                         log_cb(RETRO_LOG_INFO, "failed to read m3u file\n");
1267                         return false;
1268                 }
1269         } else {
1270                 disk_count = 1;
1271                 disks[0].fname = strdup(info->path);
1272         }
1273
1274         set_cd_image(disks[0].fname);
1275
1276         /* have to reload after set_cd_image for correct cdr plugin */
1277         if (LoadPlugins() == -1) {
1278                 log_cb(RETRO_LOG_INFO, "failed to load plugins\n");
1279                 return false;
1280         }
1281
1282         plugins_opened = 1;
1283         NetOpened = 0;
1284
1285         if (OpenPlugins() == -1) {
1286                 log_cb(RETRO_LOG_INFO, "failed to open plugins\n");
1287                 return false;
1288         }
1289
1290         plugin_call_rearmed_cbs();
1291         dfinput_activate();
1292
1293         if (CheckCdrom() == -1) {
1294         log_cb(RETRO_LOG_INFO, "unsupported/invalid CD image: %s\n", info->path);
1295                 return false;
1296         }
1297
1298         SysReset();
1299
1300         if (LoadCdrom() == -1) {
1301                 log_cb(RETRO_LOG_INFO, "could not load CD\n");
1302                 return false;
1303         }
1304         emu_on_new_cd(0);
1305
1306         // multidisk images
1307         if (!is_m3u) {
1308                 disk_count = cdrIsoMultidiskCount < 8 ? cdrIsoMultidiskCount : 8;
1309                 for (i = 1; i < sizeof(disks) / sizeof(disks[0]) && i < cdrIsoMultidiskCount; i++) {
1310                         disks[i].fname = strdup(info->path);
1311                         disks[i].internal_index = i;
1312                 }
1313         }
1314
1315         return true;
1316 }
1317
1318 unsigned retro_get_region(void)
1319 {
1320         return is_pal_mode ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
1321 }
1322
1323 void *retro_get_memory_data(unsigned id)
1324 {
1325         if (id == RETRO_MEMORY_SAVE_RAM)
1326                 return Mcd1Data;
1327         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1328                 return psxM;
1329         else
1330                 return NULL;
1331 }
1332
1333 size_t retro_get_memory_size(unsigned id)
1334 {
1335         if (id == RETRO_MEMORY_SAVE_RAM)
1336                 return MCD_SIZE;
1337         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1338                 return 0x200000;
1339         else
1340                 return 0;
1341 }
1342
1343 void retro_reset(void)
1344 {
1345    //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
1346    rebootemu = 1;
1347         //SysReset();
1348 }
1349
1350 static const unsigned short retro_psx_map[] = {
1351         [RETRO_DEVICE_ID_JOYPAD_B]      = 1 << DKEY_CROSS,
1352         [RETRO_DEVICE_ID_JOYPAD_Y]      = 1 << DKEY_SQUARE,
1353         [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT,
1354         [RETRO_DEVICE_ID_JOYPAD_START]  = 1 << DKEY_START,
1355         [RETRO_DEVICE_ID_JOYPAD_UP]     = 1 << DKEY_UP,
1356         [RETRO_DEVICE_ID_JOYPAD_DOWN]   = 1 << DKEY_DOWN,
1357         [RETRO_DEVICE_ID_JOYPAD_LEFT]   = 1 << DKEY_LEFT,
1358         [RETRO_DEVICE_ID_JOYPAD_RIGHT]  = 1 << DKEY_RIGHT,
1359         [RETRO_DEVICE_ID_JOYPAD_A]      = 1 << DKEY_CIRCLE,
1360         [RETRO_DEVICE_ID_JOYPAD_X]      = 1 << DKEY_TRIANGLE,
1361         [RETRO_DEVICE_ID_JOYPAD_L]      = 1 << DKEY_L1,
1362         [RETRO_DEVICE_ID_JOYPAD_R]      = 1 << DKEY_R1,
1363         [RETRO_DEVICE_ID_JOYPAD_L2]     = 1 << DKEY_L2,
1364         [RETRO_DEVICE_ID_JOYPAD_R2]     = 1 << DKEY_R2,
1365         [RETRO_DEVICE_ID_JOYPAD_L3]     = 1 << DKEY_L3,
1366         [RETRO_DEVICE_ID_JOYPAD_R3]     = 1 << DKEY_R3,
1367 };
1368 #define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0]))
1369
1370 static void update_variables(bool in_flight)
1371 {
1372    struct retro_variable var;
1373    int i;
1374    int gpu_peops_fix = 0;
1375
1376    var.value = NULL;
1377    var.key = "pcsx_rearmed_frameskip";
1378    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1379       pl_rearmed_cbs.frameskip = atoi(var.value);
1380
1381    var.value = NULL;
1382    var.key = "pcsx_rearmed_region";
1383    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1384    {
1385       Config.PsxAuto = 0;
1386       if (strcmp(var.value, "auto") == 0)
1387          Config.PsxAuto = 1;
1388       else if (strcmp(var.value, "NTSC") == 0)
1389          Config.PsxType = 0;
1390       else if (strcmp(var.value, "PAL") == 0)
1391          Config.PsxType = 1;
1392    }
1393
1394    for (i = 0; i < PORTS_NUMBER; i++)
1395       update_controller_port_variable(i);
1396
1397    update_multitap();
1398
1399    var.value = NULL;
1400    var.key = "pcsx_rearmed_negcon_deadzone";
1401    negcon_deadzone = 0;
1402    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1403    {
1404       negcon_deadzone = (int)(atoi(var.value) * 0.01f * NEGCON_RANGE);
1405    }
1406
1407    var.value = NULL;
1408    var.key = "pcsx_rearmed_negcon_response";
1409    negcon_linearity = 1;
1410    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1411    {
1412       if (strcmp(var.value, "quadratic") == 0){
1413          negcon_linearity = 2;
1414       } else if (strcmp(var.value, "cubic") == 0){
1415          negcon_linearity = 3;
1416       }
1417    }
1418
1419    var.value = NULL;
1420    var.key = "pcsx_rearmed_vibration";
1421
1422    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1423    {
1424       if (strcmp(var.value, "disabled") == 0)
1425          in_enable_vibration = 0;
1426       else if (strcmp(var.value, "enabled") == 0)
1427          in_enable_vibration = 1;
1428    }
1429
1430    var.value = NULL;
1431    var.key = "pcsx_rearmed_dithering";
1432
1433    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1434    {
1435       if (strcmp(var.value, "disabled") == 0) {
1436          pl_rearmed_cbs.gpu_peops.iUseDither = 0;
1437          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 0;
1438 #ifdef __ARM_NEON__
1439          pl_rearmed_cbs.gpu_neon.allow_dithering = 0;
1440 #endif
1441       }
1442       else if (strcmp(var.value, "enabled") == 0) {
1443          pl_rearmed_cbs.gpu_peops.iUseDither = 1;
1444          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 1;
1445 #ifdef __ARM_NEON__
1446          pl_rearmed_cbs.gpu_neon.allow_dithering = 1;
1447 #endif
1448       }
1449    }
1450
1451 #ifdef __ARM_NEON__
1452    var.value = "NULL";
1453    var.key = "pcsx_rearmed_neon_interlace_enable";
1454
1455    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1456    {
1457       if (strcmp(var.value, "disabled") == 0)
1458          pl_rearmed_cbs.gpu_neon.allow_interlace = 0;
1459       else if (strcmp(var.value, "enabled") == 0)
1460          pl_rearmed_cbs.gpu_neon.allow_interlace = 1;
1461    }
1462
1463    var.value = NULL;
1464    var.key = "pcsx_rearmed_neon_enhancement_enable";
1465
1466    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1467    {
1468       if (strcmp(var.value, "disabled") == 0)
1469          pl_rearmed_cbs.gpu_neon.enhancement_enable = 0;
1470       else if (strcmp(var.value, "enabled") == 0)
1471          pl_rearmed_cbs.gpu_neon.enhancement_enable = 1;
1472    }
1473
1474    var.value = NULL;
1475    var.key = "pcsx_rearmed_neon_enhancement_no_main";
1476
1477    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1478    {
1479       if (strcmp(var.value, "disabled") == 0)
1480          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 0;
1481       else if (strcmp(var.value, "enabled") == 0)
1482          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 1;
1483    }
1484 #endif
1485
1486    var.value = "NULL";
1487    var.key = "pcsx_rearmed_duping_enable";
1488
1489    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1490    {
1491       if (strcmp(var.value, "disabled") == 0)
1492          duping_enable = false;
1493       else if (strcmp(var.value, "enabled") == 0)
1494          duping_enable = true;
1495    }
1496
1497    var.value = "NULL";
1498    var.key = "pcsx_rearmed_display_internal_fps";
1499
1500    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1501    {
1502       if (strcmp(var.value, "disabled") == 0)
1503          display_internal_fps = false;
1504       else if (strcmp(var.value, "enabled") == 0)
1505          display_internal_fps = true;
1506    }
1507
1508 #ifndef DRC_DISABLE
1509    var.value = NULL;
1510    var.key = "pcsx_rearmed_drc";
1511
1512    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1513    {
1514       R3000Acpu *prev_cpu = psxCpu;
1515
1516 #ifdef _3DS
1517       if(!__ctr_svchax)
1518          Config.Cpu = CPU_INTERPRETER;
1519       else
1520 #endif
1521       if (strcmp(var.value, "disabled") == 0)
1522          Config.Cpu = CPU_INTERPRETER;
1523       else if (strcmp(var.value, "enabled") == 0)
1524          Config.Cpu = CPU_DYNAREC;
1525
1526       psxCpu = (Config.Cpu == CPU_INTERPRETER) ? &psxInt : &psxRec;
1527       if (psxCpu != prev_cpu) {
1528          prev_cpu->Shutdown();
1529          psxCpu->Init();
1530          psxCpu->Reset(); // not really a reset..
1531       }
1532    }
1533 #endif
1534
1535    var.value = "NULL";
1536    var.key = "pcsx_rearmed_spu_reverb";
1537
1538    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1539    {
1540       if (strcmp(var.value, "disabled") == 0)
1541          spu_config.iUseReverb = false;
1542       else if (strcmp(var.value, "enabled") == 0)
1543          spu_config.iUseReverb = true;
1544    }
1545
1546    var.value = "NULL";
1547    var.key = "pcsx_rearmed_spu_interpolation";
1548
1549    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1550    {
1551       if (strcmp(var.value, "simple") == 0)
1552          spu_config.iUseInterpolation = 1;
1553       else if (strcmp(var.value, "gaussian") == 0)
1554          spu_config.iUseInterpolation = 2;
1555       else if (strcmp(var.value, "cubic") == 0)
1556          spu_config.iUseInterpolation = 3;
1557       else if (strcmp(var.value, "off") == 0)
1558          spu_config.iUseInterpolation = 0;
1559    }
1560
1561    var.value = "NULL";
1562    var.key = "pcsx_rearmed_pe2_fix";
1563
1564    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1565    {
1566       if (strcmp(var.value, "disabled") == 0)
1567          Config.RCntFix = 0;
1568       else if (strcmp(var.value, "enabled") == 0)
1569          Config.RCntFix = 1;
1570    }
1571
1572    var.value = "NULL";
1573    var.key = "pcsx_rearmed_idiablofix";
1574
1575    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1576    {
1577       if (strcmp(var.value, "disabled") == 0)
1578          spu_config.idiablofix = 0;
1579       else if (strcmp(var.value, "enabled") == 0)
1580          spu_config.idiablofix = 1;
1581    }
1582
1583    var.value = "NULL";
1584    var.key = "pcsx_rearmed_inuyasha_fix";
1585
1586    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1587    {
1588       if (strcmp(var.value, "disabled") == 0)
1589          Config.VSyncWA = 0;
1590       else if (strcmp(var.value, "enabled") == 0)
1591          Config.VSyncWA = 1;
1592    }
1593
1594    var.value = NULL;
1595    var.key = "pcsx_rearmed_noxadecoding";
1596    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1597    {
1598       if (strcmp(var.value, "disabled") == 0)
1599          Config.Xa = 1;
1600       else
1601          Config.Xa = 0;
1602    }
1603
1604    var.value = NULL;
1605    var.key = "pcsx_rearmed_nocdaudio";
1606    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1607    {
1608       if (strcmp(var.value, "disabled") == 0)
1609          Config.Cdda = 1;
1610       else
1611          Config.Cdda = 0;
1612    }
1613
1614 #ifndef DRC_DISABLE
1615    var.value = NULL;
1616    var.key = "pcsx_rearmed_nosmccheck";
1617    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1618    {
1619       if (strcmp(var.value, "enabled") == 0)
1620          new_dynarec_hacks |= NDHACK_NO_SMC_CHECK;
1621       else
1622          new_dynarec_hacks &= ~NDHACK_NO_SMC_CHECK;
1623    }
1624
1625    var.value = NULL;
1626    var.key = "pcsx_rearmed_gteregsunneeded";
1627    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1628    {
1629       if (strcmp(var.value, "enabled") == 0)
1630          new_dynarec_hacks |= NDHACK_GTE_UNNEEDED;
1631       else
1632          new_dynarec_hacks &= ~NDHACK_GTE_UNNEEDED;
1633    }
1634
1635    var.value = NULL;
1636    var.key = "pcsx_rearmed_nogteflags";
1637    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1638    {
1639       if (strcmp(var.value, "enabled") == 0)
1640          new_dynarec_hacks |= NDHACK_GTE_NO_FLAGS;
1641       else
1642          new_dynarec_hacks &= ~NDHACK_GTE_NO_FLAGS;
1643    }
1644 #endif
1645
1646 #ifdef GPU_PEOPS
1647    var.value = "NULL";
1648    var.key = "pcsx_rearmed_gpu_peops_odd_even_bit";
1649
1650    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1651    {
1652       if (strcmp(var.value, "enabled") == 0)
1653          gpu_peops_fix |= GPU_PEOPS_ODD_EVEN_BIT;
1654    }
1655
1656    var.value = "NULL";
1657    var.key = "pcsx_rearmed_gpu_peops_expand_screen_width";
1658
1659    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1660    {
1661       if (strcmp(var.value, "enabled") == 0)
1662          gpu_peops_fix |= GPU_PEOPS_EXPAND_SCREEN_WIDTH;
1663    }
1664
1665    var.value = "NULL";
1666    var.key = "pcsx_rearmed_gpu_peops_ignore_brightness";
1667
1668    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1669    {
1670       if (strcmp(var.value, "enabled") == 0)
1671          gpu_peops_fix |= GPU_PEOPS_IGNORE_BRIGHTNESS;
1672    }
1673
1674    var.value = "NULL";
1675    var.key = "pcsx_rearmed_gpu_peops_disable_coord_check";
1676
1677    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1678    {
1679       if (strcmp(var.value, "enabled") == 0)
1680          gpu_peops_fix |= GPU_PEOPS_DISABLE_COORD_CHECK;
1681    }
1682
1683    var.value = "NULL";
1684    var.key = "pcsx_rearmed_gpu_peops_lazy_screen_update";
1685
1686    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1687    {
1688       if (strcmp(var.value, "enabled") == 0)
1689          gpu_peops_fix |= GPU_PEOPS_LAZY_SCREEN_UPDATE;
1690    }
1691
1692    var.value = "NULL";
1693    var.key = "pcsx_rearmed_gpu_peops_old_frame_skip";
1694
1695    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1696    {
1697       if (strcmp(var.value, "enabled") == 0)
1698          gpu_peops_fix |= GPU_PEOPS_OLD_FRAME_SKIP;
1699    }
1700
1701    var.value = "NULL";
1702    var.key = "pcsx_rearmed_gpu_peops_repeated_triangles";
1703
1704    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1705    {
1706       if (strcmp(var.value, "enabled") == 0)
1707          gpu_peops_fix |= GPU_PEOPS_REPEATED_TRIANGLES;
1708    }
1709
1710    var.value = "NULL";
1711    var.key = "pcsx_rearmed_gpu_peops_quads_with_triangles";
1712
1713    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1714    {
1715       if (strcmp(var.value, "enabled") == 0)
1716          gpu_peops_fix |= GPU_PEOPS_QUADS_WITH_TRIANGLES;
1717    }
1718
1719    var.value = "NULL";
1720    var.key = "pcsx_rearmed_gpu_peops_fake_busy_state";
1721
1722    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1723    {
1724       if (strcmp(var.value, "enabled") == 0)
1725          gpu_peops_fix |= GPU_PEOPS_FAKE_BUSY_STATE;
1726    }
1727
1728    if (pl_rearmed_cbs.gpu_peops.dwActFixes != gpu_peops_fix)
1729       pl_rearmed_cbs.gpu_peops.dwActFixes = gpu_peops_fix;
1730
1731
1732    /* Show/hide core options */
1733
1734    var.key = "pcsx_rearmed_show_gpu_peops_settings";
1735    var.value = NULL;
1736
1737    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1738    {
1739       int show_advanced_gpu_peops_settings_prev = show_advanced_gpu_peops_settings;
1740
1741       show_advanced_gpu_peops_settings = 1;
1742       if (strcmp(var.value, "disabled") == 0)
1743          show_advanced_gpu_peops_settings = 0;
1744
1745       if (show_advanced_gpu_peops_settings != show_advanced_gpu_peops_settings_prev)
1746       {
1747          unsigned i;
1748          struct retro_core_option_display option_display;
1749          char gpu_peops_option[9][45] = {
1750             "pcsx_rearmed_gpu_peops_odd_even_bit",
1751             "pcsx_rearmed_gpu_peops_expand_screen_width",
1752             "pcsx_rearmed_gpu_peops_ignore_brightness",
1753             "pcsx_rearmed_gpu_peops_disable_coord_check",
1754             "pcsx_rearmed_gpu_peops_lazy_screen_update",
1755             "pcsx_rearmed_gpu_peops_old_frame_skip",
1756             "pcsx_rearmed_gpu_peops_repeated_triangles",
1757             "pcsx_rearmed_gpu_peops_quads_with_triangles",
1758             "pcsx_rearmed_gpu_peops_fake_busy_state",
1759          };
1760
1761          option_display.visible = show_advanced_gpu_peops_settings;
1762
1763          for (i = 0; i < 9; i++)
1764          {
1765             option_display.key = gpu_peops_option[i];
1766             environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
1767          }
1768       }
1769    }
1770 #endif
1771
1772    if (in_flight) {
1773       // inform core things about possible config changes
1774       plugin_call_rearmed_cbs();
1775
1776       if (GPU_open != NULL && GPU_close != NULL) {
1777          GPU_close();
1778          GPU_open(&gpuDisp, "PCSX", NULL);
1779       }
1780
1781       dfinput_activate();
1782    }
1783    else
1784    {
1785       //not yet running
1786
1787       //bootlogo display hack
1788       if (found_bios) {
1789          var.value = "NULL";
1790          var.key = "pcsx_rearmed_show_bios_bootlogo";
1791          if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1792          {
1793             Config.SlowBoot = 0;
1794             rebootemu = 0;
1795             if (strcmp(var.value, "enabled") == 0)
1796             {
1797                Config.SlowBoot = 1;
1798                rebootemu = 1;
1799             }
1800          }
1801       }
1802 #ifndef DRC_DISABLE
1803       var.value = "NULL";
1804       var.key = "pcsx_rearmed_psxclock";
1805       if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1806       {
1807          int psxclock = atoi(var.value);
1808          cycle_multiplier = 10000 / psxclock;
1809       }
1810 #endif
1811    }
1812 }
1813
1814 // Taken from beetle-psx-libretro
1815 static uint16_t get_analog_button(int16_t ret, retro_input_state_t input_state_cb, int player_index, int id)
1816 {
1817         // NOTE: Analog buttons were added Nov 2017. Not all front-ends support this
1818         // feature (or pre-date it) so we need to handle this in a graceful way.
1819
1820         // First, try and get an analog value using the new libretro API constant
1821         uint16_t button = input_state_cb(player_index,
1822                                                                         RETRO_DEVICE_ANALOG,
1823                                                                         RETRO_DEVICE_INDEX_ANALOG_BUTTON,
1824                                                                         id);
1825         button = MIN(button / 128, 255);
1826
1827         if (button == 0)
1828         {
1829                 // If we got exactly zero, we're either not pressing the button, or the front-end
1830                 // is not reporting analog values. We need to do a second check using the classic
1831                 // digital API method, to at least get some response - better than nothing.
1832
1833                 // NOTE: If we're really just not holding the button, we're still going to get zero.
1834
1835                 button = (ret & (1 << id)) ? 255 : 0;
1836         }
1837
1838         return button;
1839 }
1840
1841 void retro_run(void)
1842 {
1843         int i;
1844         //SysReset must be run while core is running,Not in menu (Locks up Retroarch)
1845         if (rebootemu != 0) {
1846                 rebootemu = 0;
1847                 SysReset();
1848                 if (!Config.HLE && !Config.SlowBoot) {
1849                         // skip BIOS logos
1850                         psxRegs.pc = psxRegs.GPR.n.ra;
1851                 }
1852         }
1853
1854         if (display_internal_fps) {
1855                 frame_count++;
1856
1857                 if (frame_count % INTERNAL_FPS_SAMPLE_PERIOD == 0) {
1858                         unsigned internal_fps = pl_rearmed_cbs.flip_cnt * (is_pal_mode ? 50 : 60) / INTERNAL_FPS_SAMPLE_PERIOD;
1859                         char str[64];
1860                         const char *strc = (const char*)str;
1861                         struct retro_message msg =
1862                         {
1863                                 strc,
1864                                 180
1865                         };
1866
1867                         str[0] = '\0';
1868
1869                         snprintf(str, sizeof(str), "Internal FPS: %2d", internal_fps);
1870
1871                         pl_rearmed_cbs.flip_cnt = 0;
1872
1873                         environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &msg);
1874                 }
1875         }
1876    else
1877                 frame_count = 0;
1878
1879         input_poll_cb();
1880
1881         bool updated = false;
1882         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
1883                 update_variables(true);
1884
1885         // reset all keystate, query libretro for keystate
1886         int j;
1887         int lsx;
1888         int rsy;
1889         float negcon_twist_amplitude;
1890         int negcon_i_rs;
1891         int negcon_ii_rs;
1892         for(i = 0; i < PORTS_NUMBER; i++)
1893    {
1894       int16_t ret    = 0;
1895                 in_keystate[i] = 0;
1896
1897                 if (in_type[i] == PSE_PAD_TYPE_NONE)
1898                         continue;
1899
1900       if (libretro_supports_bitmasks)
1901          ret = input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
1902       else
1903       {
1904          unsigned j;
1905          for (j = 0; j < (RETRO_DEVICE_ID_JOYPAD_R3+1); j++)
1906          {
1907             if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, j))
1908                ret |= (1 << j);
1909          }
1910       }
1911
1912                 if (in_type[i] == PSE_PAD_TYPE_GUNCON)
1913                 {
1914                         //ToDo move across to:
1915                         //RETRO_DEVICE_ID_LIGHTGUN_SCREEN_X
1916                         //RETRO_DEVICE_ID_LIGHTGUN_SCREEN_Y
1917                         //RETRO_DEVICE_ID_LIGHTGUN_TRIGGER
1918                         //RETRO_DEVICE_ID_LIGHTGUN_RELOAD
1919                         //RETRO_DEVICE_ID_LIGHTGUN_AUX_A
1920                         //RETRO_DEVICE_ID_LIGHTGUN_AUX_B
1921                         //Though not sure these are hooked up properly on the Pi
1922
1923                         //ToDo
1924                         //Put the controller index back to i instead of hardcoding to 1 when the libretro overlay crash bug is fixed
1925                         //This is required for 2 player
1926
1927                         //GUNCON has 3 controls, Trigger,A,B which equal Circle,Start,Cross
1928
1929                         // Trigger
1930                         //The 1 is hardcoded instead of i to prevent the overlay mouse button libretro crash bug
1931                         if (input_state_cb(1, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT)){
1932                                 in_keystate[i] |= (1 << DKEY_CIRCLE);
1933                         }
1934
1935                         // A
1936                         if (input_state_cb(1, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT)){
1937                                 in_keystate[i] |= (1 << DKEY_START);
1938                         }
1939
1940                         // B
1941                         if (input_state_cb(1, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE)){
1942                                 in_keystate[i] |= (1 << DKEY_CROSS);
1943                         }
1944
1945                         //The 1 is hardcoded instead of i to prevent the overlay mouse button libretro crash bug
1946                         int gunx = input_state_cb(1, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X);
1947                         int guny = input_state_cb(1, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y);
1948
1949                         //This adjustment process gives the user the ability to manually align the mouse up better
1950                         //with where the shots are in the emulator.
1951
1952                         //Percentage distance of screen to adjust
1953                         int GunconAdjustX = 0;
1954                         int GunconAdjustY = 0;
1955
1956                         //Used when out by a percentage
1957                         float GunconAdjustRatioX = 1;
1958                         float GunconAdjustRatioY = 1;
1959
1960                         struct retro_variable var;
1961                         var.value = NULL;
1962                         var.key = "pcsx_rearmed_gunconadjustx";
1963                         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1964                         {
1965                                 GunconAdjustX = atoi(var.value);
1966                         }
1967
1968                         var.value = NULL;
1969                         var.key = "pcsx_rearmed_gunconadjusty";
1970                         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1971                         {
1972                                 GunconAdjustY = atoi(var.value);
1973                         }
1974
1975
1976                         var.value = NULL;
1977                         var.key = "pcsx_rearmed_gunconadjustratiox";
1978                         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1979                         {
1980                                 GunconAdjustRatioX = atof(var.value);
1981                         }
1982
1983
1984                         var.value = NULL;
1985                         var.key = "pcsx_rearmed_gunconadjustratioy";
1986                         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1987                         {
1988                                 GunconAdjustRatioY = atof(var.value);
1989                         }
1990
1991                         //Mouse range is -32767 -> 32767
1992                         //1% is about 655
1993                         //Use the left analog stick field to store the absolute coordinates
1994                         in_analog_left[0][0] = (gunx*GunconAdjustRatioX) + (GunconAdjustX * 655);
1995                         in_analog_left[0][1] = (guny*GunconAdjustRatioY) + (GunconAdjustY * 655);
1996
1997
1998                 }
1999                 if (in_type[i] == PSE_PAD_TYPE_NEGCON)
2000                 {
2001                         // Query digital inputs
2002                         //
2003                         // > Pad-Up
2004                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_UP))
2005                                 in_keystate[i] |= (1 << DKEY_UP);
2006                         // > Pad-Right
2007                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT))
2008                                 in_keystate[i] |= (1 << DKEY_RIGHT);
2009                         // > Pad-Down
2010                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN))
2011                                 in_keystate[i] |= (1 << DKEY_DOWN);
2012                         // > Pad-Left
2013                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT))
2014                                 in_keystate[i] |= (1 << DKEY_LEFT);
2015                         // > Start
2016                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
2017                                 in_keystate[i] |= (1 << DKEY_START);
2018                         // > neGcon A
2019                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_A))
2020                                 in_keystate[i] |= (1 << DKEY_CIRCLE);
2021                         // > neGcon B
2022                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_X))
2023                                 in_keystate[i] |= (1 << DKEY_TRIANGLE);
2024                         // > neGcon R shoulder (digital)
2025                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_R))
2026                                 in_keystate[i] |= (1 << DKEY_R1);
2027                         // Query analog inputs
2028                         //
2029                         // From studying 'libpcsxcore/plugins.c' and 'frontend/plugin.c':
2030                         // >> pad->leftJoyX  == in_analog_left[i][0]  == NeGcon II
2031                         // >> pad->leftJoyY  == in_analog_left[i][1]  == NeGcon L
2032                         // >> pad->rightJoyX == in_analog_right[i][0] == NeGcon twist
2033                         // >> pad->rightJoyY == in_analog_right[i][1] == NeGcon I
2034                         // So we just have to map in_analog_left/right to more
2035                         // appropriate inputs...
2036                         //
2037                         // > NeGcon twist
2038                         // >> Get raw analog stick value and account for deadzone
2039                         lsx = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X);
2040                         if (lsx > negcon_deadzone)
2041                                 lsx = lsx - negcon_deadzone;
2042                         else if (lsx < -negcon_deadzone)
2043                                 lsx = lsx + negcon_deadzone;
2044                         else
2045                                 lsx = 0;
2046                         // >> Convert to an 'amplitude' [-1.0,1.0] and adjust response
2047                         negcon_twist_amplitude = (float)lsx / (float)(NEGCON_RANGE - negcon_deadzone);
2048                         if (negcon_linearity == 2)
2049          {
2050                                 if (negcon_twist_amplitude < 0.0)
2051                                         negcon_twist_amplitude = -(negcon_twist_amplitude * negcon_twist_amplitude);
2052             else
2053                                         negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude;
2054                         }
2055          else if (negcon_linearity == 3)
2056                                 negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude * negcon_twist_amplitude;
2057                         // >> Convert to final 'in_analog' integer value [0,255]
2058                         in_analog_right[i][0] = MAX(MIN((int)(negcon_twist_amplitude * 128.0f) + 128, 255), 0);
2059                         // > NeGcon I + II
2060                         // >> Handle right analog stick vertical axis mapping...
2061                         //    - Up (-Y) == accelerate == neGcon I
2062                         //    - Down (+Y) == brake == neGcon II
2063                         negcon_i_rs = 0;
2064                         negcon_ii_rs = 0;
2065                         rsy = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y);
2066                         if (rsy >= 0){
2067                                 // Account for deadzone
2068                                 // (Note: have never encountered a gamepad with significant differences
2069                                 // in deadzone between left/right analog sticks, so use the regular 'twist'
2070                                 // deadzone here)
2071                                 if (rsy > negcon_deadzone)
2072                                         rsy = rsy - negcon_deadzone;
2073             else
2074                                         rsy = 0;
2075                                 // Convert to 'in_analog' integer value [0,255]
2076                                 negcon_ii_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2077                         } else {
2078                                 if (rsy < -negcon_deadzone)
2079                                         rsy = -1 * (rsy + negcon_deadzone);
2080             else
2081                                         rsy = 0;
2082                                 negcon_i_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2083                         }
2084                         // >> NeGcon I
2085                         in_analog_right[i][1] = MAX(
2086                                 MAX(
2087                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_R2),
2088                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_B)
2089                                 ),
2090                                 negcon_i_rs
2091                         );
2092                         // >> NeGcon II
2093                         in_analog_left[i][0] = MAX(
2094                                 MAX(
2095                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L2),
2096                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_Y)
2097                                 ),
2098                                 negcon_ii_rs
2099                         );
2100                         // > NeGcon L
2101                         in_analog_left[i][1] = get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L);
2102                 }
2103                 if (in_type[i] != PSE_PAD_TYPE_NEGCON && in_type[i] != PSE_PAD_TYPE_GUNCON)
2104                 {
2105                         // Query digital inputs
2106                         for (j = 0; j < RETRO_PSX_MAP_LEN; j++)
2107                                 if (ret & (1 << j))
2108                                         in_keystate[i] |= retro_psx_map[j];
2109
2110                         // Query analog inputs
2111                         if (in_type[i] == PSE_PAD_TYPE_ANALOGJOY || in_type[i] == PSE_PAD_TYPE_ANALOGPAD)
2112                         {
2113                                 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);
2114                                 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);
2115                                 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);
2116                                 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);
2117                         }
2118                 }
2119         }
2120
2121         stop = 0;
2122         psxCpu->Execute();
2123
2124         video_cb((vout_fb_dirty || !vout_can_dupe || !duping_enable) ? vout_buf_ptr : NULL,
2125                 vout_width, vout_height, vout_width * 2);
2126         vout_fb_dirty = 0;
2127
2128     set_vout_fb();
2129 }
2130
2131 static bool try_use_bios(const char *path)
2132 {
2133         FILE *f;
2134         long size;
2135         const char *name;
2136
2137         f = fopen(path, "rb");
2138         if (f == NULL)
2139                 return false;
2140
2141         fseek(f, 0, SEEK_END);
2142         size = ftell(f);
2143         fclose(f);
2144
2145         if (size != 512 * 1024)
2146                 return false;
2147
2148         name = strrchr(path, SLASH);
2149         if (name++ == NULL)
2150                 name = path;
2151         snprintf(Config.Bios, sizeof(Config.Bios), "%s", name);
2152         return true;
2153 }
2154
2155 #ifndef VITA
2156 #include <sys/types.h>
2157 #include <dirent.h>
2158
2159 static bool find_any_bios(const char *dirpath, char *path, size_t path_size)
2160 {
2161         DIR *dir;
2162         struct dirent *ent;
2163         bool ret = false;
2164
2165         dir = opendir(dirpath);
2166         if (dir == NULL)
2167                 return false;
2168
2169         while ((ent = readdir(dir))) {
2170                 if ((strncasecmp(ent->d_name, "scph", 4) != 0) && (strncasecmp(ent->d_name, "psx", 3) != 0))
2171                         continue;
2172
2173                 snprintf(path, path_size, "%s%c%s", dirpath, SLASH, ent->d_name);
2174                 ret = try_use_bios(path);
2175                 if (ret)
2176                         break;
2177         }
2178         closedir(dir);
2179         return ret;
2180 }
2181 #else
2182 #define find_any_bios(...) false
2183 #endif
2184
2185 static void check_system_specs(void)
2186 {
2187    unsigned level = 6;
2188    environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
2189 }
2190
2191 static int init_memcards(void)
2192 {
2193         int ret = 0;
2194         const char *dir;
2195         struct retro_variable var = { .key="pcsx_rearmed_memcard2", .value=NULL };
2196         static const char CARD2_FILE[] = "pcsx-card2.mcd";
2197
2198         // Memcard2 will be handled and is re-enabled if needed using core
2199         // operations.
2200         // Memcard1 is handled by libretro, doing this will set core to
2201         // skip file io operations for memcard1 like SaveMcd
2202         snprintf(Config.Mcd1, sizeof(Config.Mcd1), "none");
2203         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "none");
2204         init_memcard(Mcd1Data);
2205         // Memcard 2 is managed by the emulator on the filesystem,
2206         // There is no need to initialize Mcd2Data like Mcd1Data.
2207
2208         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2209                 SysPrintf("Memcard 2: %s\n", var.value);
2210                 if (memcmp(var.value, "enabled", 7) == 0) {
2211                         if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir) {
2212                                 if (strlen(dir) + strlen(CARD2_FILE) + 2 > sizeof(Config.Mcd2)) {
2213                                         SysPrintf("Path '%s' is too long. Cannot use memcard 2. Use a shorter path.\n", dir);
2214                                         ret = -1;
2215                                 } else {
2216                                         McdDisable[1] = 0;
2217                                         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "%s/%s", dir, CARD2_FILE);
2218                                         SysPrintf("Use memcard 2: %s\n", Config.Mcd2);
2219                                 }
2220                         } else {
2221                                 SysPrintf("Could not get save directory! Could not create memcard 2.");
2222                                 ret = -1;
2223                         }
2224                 }
2225         }
2226         return ret;
2227 }
2228
2229 static void loadPSXBios(void)
2230 {
2231         const char *dir;
2232         char path[PATH_MAX];
2233         unsigned useHLE = 0;
2234
2235         const char *bios[] = {
2236                 "PSXONPSP660", "psxonpsp660",
2237                 "SCPH101", "scph101",
2238                 "SCPH5501", "scph5501",
2239                 "SCPH7001", "scph7001",
2240                 "SCPH1001", "scph1001"
2241         };
2242
2243         struct retro_variable var = {
2244                 .key = "pcsx_rearmed_bios",
2245                 .value = NULL
2246         };
2247
2248         found_bios = 0;
2249
2250         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2251                 if (!strcmp(var.value, "HLE"))
2252                         useHLE = 1;
2253         }
2254
2255         if (!useHLE)
2256         {
2257                 if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
2258                 {
2259                         unsigned i;
2260                         snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s", dir);
2261
2262                         for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) {
2263                                 snprintf(path, sizeof(path), "%s%c%s.bin", dir, SLASH, bios[i]);
2264                                 found_bios = try_use_bios(path);
2265                                 if (found_bios)
2266                                         break;
2267                         }
2268
2269                         if (!found_bios)
2270                                 found_bios = find_any_bios(dir, path, sizeof(path));
2271                 }
2272                 if (found_bios) {
2273                         SysPrintf("found BIOS file: %s\n", Config.Bios);
2274                 }
2275         }
2276
2277         if (useHLE || !found_bios)
2278         {
2279                 SysPrintf("no BIOS files found.\n");
2280                 struct retro_message msg =
2281                 {
2282                         "No PlayStation BIOS file found - add for better compatibility",
2283                         180
2284                 };
2285                 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, (void*)&msg);
2286         }
2287 }
2288
2289 void retro_init(void)
2290 {
2291         struct retro_rumble_interface rumble;
2292         int ret;
2293
2294 #ifdef __MACH__
2295         // magic sauce to make the dynarec work on iOS
2296         syscall(SYS_ptrace, 0 /*PTRACE_TRACEME*/, 0, 0, 0);
2297 #endif
2298
2299 #ifdef _3DS
2300    psxMapHook = pl_3ds_mmap;
2301    psxUnmapHook = pl_3ds_munmap;
2302 #endif
2303 #ifdef VITA
2304    if(init_vita_mmap()<0)
2305       abort();
2306    psxMapHook = pl_vita_mmap;
2307    psxUnmapHook = pl_vita_munmap;
2308 #endif
2309         ret = emu_core_preinit();
2310 #ifdef _3DS
2311    /* emu_core_preinit sets the cpu to dynarec */
2312    if(!__ctr_svchax)
2313       Config.Cpu = CPU_INTERPRETER;
2314 #endif
2315         ret |= init_memcards();
2316
2317         ret |= emu_core_init();
2318         if (ret != 0) {
2319                 SysPrintf("PCSX init failed.\n");
2320                 exit(1);
2321         }
2322
2323 #ifdef _3DS
2324    vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80);
2325 #elif defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L) && !defined(VITA)
2326         posix_memalign(&vout_buf, 16, VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2327 #else
2328         vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2329 #endif
2330
2331         vout_buf_ptr = vout_buf;
2332
2333         loadPSXBios();
2334
2335         environ_cb(RETRO_ENVIRONMENT_GET_CAN_DUPE, &vout_can_dupe);
2336         environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control);
2337
2338         rumble_cb = NULL;
2339         if (environ_cb(RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE, &rumble))
2340                 rumble_cb = rumble.set_rumble_state;
2341
2342         /* Set how much slower PSX CPU runs * 100 (so that 200 is 2 times)
2343          * we have to do this because cache misses and some IO penalties
2344          * are not emulated. Warning: changing this may break compatibility. */
2345         cycle_multiplier = 175;
2346 #ifdef HAVE_PRE_ARMV7
2347         cycle_multiplier = 200;
2348 #endif
2349         pl_rearmed_cbs.gpu_peops.iUseDither = 1;
2350         pl_rearmed_cbs.gpu_peops.dwActFixes = GPU_PEOPS_OLD_FRAME_SKIP;
2351         spu_config.iUseFixedUpdates = 1;
2352
2353         SaveFuncs.open = save_open;
2354         SaveFuncs.read = save_read;
2355         SaveFuncs.write = save_write;
2356         SaveFuncs.seek = save_seek;
2357         SaveFuncs.close = save_close;
2358
2359    if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL))
2360       libretro_supports_bitmasks = true;
2361
2362         update_variables(false);
2363         check_system_specs();
2364 }
2365
2366 void retro_deinit(void)
2367 {
2368         ClosePlugins();
2369         SysClose();
2370 #ifdef _3DS
2371    linearFree(vout_buf);
2372 #else
2373         free(vout_buf);
2374 #endif
2375         vout_buf = NULL;
2376
2377 #ifdef VITA
2378   deinit_vita_mmap();
2379 #endif
2380    libretro_supports_bitmasks = false;
2381 }
2382
2383 #ifdef VITA
2384 #include <psp2/kernel/threadmgr.h>
2385 int usleep (unsigned long us)
2386 {
2387    sceKernelDelayThread(us);
2388 }
2389 #endif
2390
2391 void SysPrintf(const char *fmt, ...) {
2392         va_list list;
2393         char msg[512];
2394
2395         va_start(list, fmt);
2396         vsprintf(msg, fmt, list);
2397         va_end(list);
2398
2399         if (log_cb)
2400                 log_cb(RETRO_LOG_INFO, "%s", msg);
2401 }