frontend/libretro.c

   1 /*
   2  * (C) notaz, 2012,2014,2015
   3  *
   4  * This work is licensed under the terms of the GNU GPLv2 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #define _GNU_SOURCE 1 // strcasestr
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <strings.h>
  13 #ifdef __MACH__
  14 #include <unistd.h>
  15 #include <sys/syscall.h>
  16 #endif
  17
  18 #ifdef SWITCH
  19 #include <switch.h>
  20 #endif
  21
  22 #include "../libpcsxcore/misc.h"
  23 #include "../libpcsxcore/psxcounters.h"
  24 #include "../libpcsxcore/psxmem_map.h"
  25 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
  26 #include "../libpcsxcore/cdrom.h"
  27 #include "../libpcsxcore/cdriso.h"
  28 #include "../libpcsxcore/cheat.h"
  29 #include "../libpcsxcore/r3000a.h"
  30 #include "../plugins/dfsound/out.h"
  31 #include "../plugins/dfsound/spu_config.h"
  32 #include "../plugins/dfinput/externals.h"
  33 #include "cspace.h"
  34 #include "main.h"
  35 #include "menu.h"
  36 #include "plugin.h"
  37 #include "plugin_lib.h"
  38 #include "arm_features.h"
  39 #include "revision.h"
  40
  41 #include <libretro.h>
  42 #include "libretro_core_options.h"
  43
  44 #ifdef _3DS
  45 #include "3ds/3ds_utils.h"
  46 #endif
  47
  48 #define PORTS_NUMBER 8
  49
  50 #ifndef MIN
  51 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  52 #endif
  53
  54 #ifndef MAX
  55 #define MAX(a, b) ((a) > (b) ? (a) : (b))
  56 #endif
  57
  58 #define ISHEXDEC ((buf[cursor]>='0') && (buf[cursor]<='9')) || ((buf[cursor]>='a') && (buf[cursor]<='f')) || ((buf[cursor]>='A') && (buf[cursor]<='F'))
  59
  60 #define INTERNAL_FPS_SAMPLE_PERIOD 64
  61
  62 //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
  63 static int rebootemu = 0;
  64
  65 static retro_video_refresh_t video_cb;
  66 static retro_input_poll_t input_poll_cb;
  67 static retro_input_state_t input_state_cb;
  68 static retro_environment_t environ_cb;
  69 static retro_audio_sample_batch_t audio_batch_cb;
  70 static retro_set_rumble_state_t rumble_cb;
  71 static struct retro_log_callback logging;
  72 static retro_log_printf_t log_cb;
  73
  74 static void *vout_buf;
  75 static void * vout_buf_ptr;
  76 static int vout_width, vout_height;
  77 static int vout_doffs_old, vout_fb_dirty;
  78 static bool vout_can_dupe;
  79 static bool duping_enable;
  80 static bool found_bios;
  81 static bool display_internal_fps = false;
  82 static unsigned frame_count = 0;
  83 static bool libretro_supports_bitmasks = false;
  84 static int show_advanced_gpu_peops_settings = -1;
  85 static int show_advanced_gpu_unai_settings  = -1;
  86
  87 static unsigned previous_width = 0;
  88 static unsigned previous_height = 0;
  89
  90 static int plugins_opened;
  91 static int is_pal_mode;
  92
  93 /* memory card data */
  94 extern char Mcd1Data[MCD_SIZE];
  95 extern char Mcd2Data[MCD_SIZE];
  96 extern char McdDisable[2];
  97
  98 /* PCSX ReARMed core calls and stuff */
  99 int in_type[8] =  { PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
 100                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
 101                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE,
 102                   PSE_PAD_TYPE_NONE, PSE_PAD_TYPE_NONE };
 103 int in_analog_left[8][2] = {{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 }};
 104 int in_analog_right[8][2] = {{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 },{ 127, 127 }};
 105 unsigned short in_keystate[PORTS_NUMBER];
 106 int multitap1 = 0;
 107 int multitap2 = 0;
 108 int in_enable_vibration = 1;
 109
 110 // NegCon adjustment parameters
 111 // > The NegCon 'twist' action is somewhat awkward when mapped
 112 //   to a standard analog stick -> user should be able to tweak
 113 //   response/deadzone for comfort
 114 // > When response is linear, 'additional' deadzone (set here)
 115 //   may be left at zero, since this is normally handled via in-game
 116 //   options menus
 117 // > When response is non-linear, deadzone should be set to match the
 118 //   controller being used (otherwise precision may be lost)
 119 // > negcon_linearity:
 120 //   - 1: Response is linear - recommended when using racing wheel
 121 //        peripherals, not recommended for standard gamepads
 122 //   - 2: Response is quadratic - optimal setting for gamepads
 123 //   - 3: Response is cubic - enables precise fine control, but
 124 //        difficult to use...
 125 #define NEGCON_RANGE 0x7FFF
 126 static int negcon_deadzone = 0;
 127 static int negcon_linearity = 1;
 128
 129 /* PSX max resolution is 640x512, but with enhancement it's 1024x512 */
 130 #define VOUT_MAX_WIDTH 1024
 131 #define VOUT_MAX_HEIGHT 512
 132
 133 //Dummy functions
 134 bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info){return false;}
 135 void retro_unload_game(void){}
 136 static int vout_open(void){return 0;}
 137 static void vout_close(void){}
 138 static int snd_init(void){return 0;}
 139 static void snd_finish(void){}
 140 static int snd_busy(void){return 0;}
 141
 142 #define GPU_PEOPS_ODD_EVEN_BIT         (1 << 0)
 143 #define GPU_PEOPS_EXPAND_SCREEN_WIDTH  (1 << 1)
 144 #define GPU_PEOPS_IGNORE_BRIGHTNESS    (1 << 2)
 145 #define GPU_PEOPS_DISABLE_COORD_CHECK  (1 << 3)
 146 #define GPU_PEOPS_LAZY_SCREEN_UPDATE   (1 << 6)
 147 #define GPU_PEOPS_OLD_FRAME_SKIP       (1 << 7)
 148 #define GPU_PEOPS_REPEATED_TRIANGLES   (1 << 8)
 149 #define GPU_PEOPS_QUADS_WITH_TRIANGLES (1 << 9)
 150 #define GPU_PEOPS_FAKE_BUSY_STATE      (1 << 10)
 151
 152 static void init_memcard(char *mcd_data)
 153 {
 154         unsigned off = 0;
 155         unsigned i;
 156
 157         memset(mcd_data, 0, MCD_SIZE);
 158
 159         mcd_data[off++] = 'M';
 160         mcd_data[off++] = 'C';
 161         off += 0x7d;
 162         mcd_data[off++] = 0x0e;
 163
 164         for (i = 0; i < 15; i++) {
 165                 mcd_data[off++] = 0xa0;
 166                 off += 0x07;
 167                 mcd_data[off++] = 0xff;
 168                 mcd_data[off++] = 0xff;
 169                 off += 0x75;
 170                 mcd_data[off++] = 0xa0;
 171         }
 172
 173         for (i = 0; i < 20; i++) {
 174                 mcd_data[off++] = 0xff;
 175                 mcd_data[off++] = 0xff;
 176                 mcd_data[off++] = 0xff;
 177                 mcd_data[off++] = 0xff;
 178                 off += 0x04;
 179                 mcd_data[off++] = 0xff;
 180                 mcd_data[off++] = 0xff;
 181                 off += 0x76;
 182         }
 183 }
 184
 185 static void set_vout_fb()
 186 {
 187   struct retro_framebuffer fb = {0};
 188
 189   fb.width           = vout_width;
 190   fb.height          = vout_height;
 191   fb.access_flags    = RETRO_MEMORY_ACCESS_WRITE;
 192
 193   if (environ_cb(RETRO_ENVIRONMENT_GET_CURRENT_SOFTWARE_FRAMEBUFFER, &fb) && fb.format == RETRO_PIXEL_FORMAT_RGB565)
 194      vout_buf_ptr = (uint16_t*)fb.data;
 195   else
 196      vout_buf_ptr = vout_buf;
 197 }
 198
 199 static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
 200 {
 201   vout_width = w;
 202   vout_height = h;
 203
 204         if (previous_width != vout_width || previous_height != vout_height)
 205         {
 206                 previous_width = vout_width;
 207                 previous_height = vout_height;
 208
 209         struct retro_system_av_info info;
 210         retro_get_system_av_info(&info);
 211         environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &info.geometry);
 212         }
 213
 214   set_vout_fb();
 215 }
 216
 217 #ifndef FRONTEND_SUPPORTS_RGB565
 218 static void convert(void *buf, size_t bytes)
 219 {
 220         unsigned int i, v, *p = buf;
 221
 222         for (i = 0; i < bytes / 4; i++) {
 223                 v = p[i];
 224                 p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
 225         }
 226 }
 227 #endif
 228
 229 static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
 230 {
 231         unsigned short *dest = vout_buf_ptr;
 232         const unsigned short *src = vram;
 233         int dstride = vout_width, h1 = h;
 234         int doffs;
 235
 236         if (vram == NULL) {
 237                 // blanking
 238                 memset(vout_buf_ptr, 0, dstride * h * 2);
 239                 goto out;
 240         }
 241
 242         doffs = (vout_height - h) * dstride;
 243         doffs += (dstride - w) / 2 & ~1;
 244         if (doffs != vout_doffs_old) {
 245                 // clear borders
 246                 memset(vout_buf_ptr, 0, dstride * h * 2);
 247                 vout_doffs_old = doffs;
 248         }
 249         dest += doffs;
 250
 251         if (bgr24)
 252         {
 253                 // XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
 254                 for (; h1-- > 0; dest += dstride, src += stride)
 255                 {
 256                         bgr888_to_rgb565(dest, src, w * 3);
 257                 }
 258         }
 259         else
 260         {
 261                 for (; h1-- > 0; dest += dstride, src += stride)
 262                 {
 263                         bgr555_to_rgb565(dest, src, w * 2);
 264                 }
 265         }
 266
 267 out:
 268 #ifndef FRONTEND_SUPPORTS_RGB565
 269         convert(vout_buf_ptr, vout_width * vout_height * 2);
 270 #endif
 271         vout_fb_dirty = 1;
 272         pl_rearmed_cbs.flip_cnt++;
 273 }
 274
 275 #ifdef _3DS
 276 typedef struct
 277 {
 278    void* buffer;
 279    uint32_t target_map;
 280    size_t size;
 281    enum psxMapTag tag;
 282 }psx_map_t;
 283
 284 psx_map_t custom_psx_maps[] = {
 285    {NULL, 0x13000000, 0x210000, MAP_TAG_RAM},   // 0x80000000
 286    {NULL, 0x12800000, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 287    {NULL, 0x12c00000, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 288    {NULL, 0x11000000, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 289    {NULL, 0x12000000, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 290 };
 291
 292 void* pl_3ds_mmap(unsigned long addr, size_t size, int is_fixed,
 293         enum psxMapTag tag)
 294 {
 295    (void)is_fixed;
 296    (void)addr;
 297
 298    if (__ctr_svchax)
 299    {
 300       psx_map_t* custom_map = custom_psx_maps;
 301
 302       for (; custom_map->size; custom_map++)
 303       {
 304          if ((custom_map->size == size) && (custom_map->tag == tag))
 305          {
 306             uint32_t ptr_aligned, tmp;
 307
 308             custom_map->buffer = malloc(size + 0x1000);
 309             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 310
 311             if(svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_MAP, 0x3) < 0)
 312             {
 313                SysPrintf("could not map memory @0x%08X\n", custom_map->target_map);
 314                exit(1);
 315             }
 316
 317             return (void*)custom_map->target_map;
 318          }
 319       }
 320    }
 321
 322    return malloc(size);
 323 }
 324
 325 void pl_3ds_munmap(void *ptr, size_t size, enum psxMapTag tag)
 326 {
 327    (void)tag;
 328
 329    if (__ctr_svchax)
 330    {
 331       psx_map_t* custom_map = custom_psx_maps;
 332
 333       for (; custom_map->size; custom_map++)
 334       {
 335          if ((custom_map->target_map == (uint32_t)ptr))
 336          {
 337             uint32_t ptr_aligned, tmp;
 338
 339             ptr_aligned = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
 340
 341             svcControlMemory(&tmp, (void*)custom_map->target_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0x3);
 342
 343             free(custom_map->buffer);
 344             custom_map->buffer = NULL;
 345             return;
 346          }
 347       }
 348    }
 349
 350    free(ptr);
 351 }
 352 #endif
 353
 354 #ifdef VITA
 355 typedef struct
 356 {
 357    void* buffer;
 358    uint32_t target_map;
 359    size_t size;
 360    enum psxMapTag tag;
 361 }psx_map_t;
 362
 363 void* addr = NULL;
 364
 365 psx_map_t custom_psx_maps[] = {
 366    {NULL, NULL, 0x210000, MAP_TAG_RAM},   // 0x80000000
 367    {NULL, NULL, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
 368    {NULL, NULL, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
 369    {NULL, NULL, 0x800000, MAP_TAG_LUTS},  // 0x08000000
 370    {NULL, NULL, 0x200000, MAP_TAG_VRAM},  // 0x00000000
 371 };
 372
 373 int init_vita_mmap(){
 374   int n;
 375   void * tmpaddr;
 376   addr = malloc(64*1024*1024);
 377   if(addr==NULL)
 378     return -1;
 379   tmpaddr = ((u32)(addr+0xFFFFFF))&~0xFFFFFF;
 380   custom_psx_maps[0].buffer=tmpaddr+0x2000000;
 381   custom_psx_maps[1].buffer=tmpaddr+0x1800000;
 382   custom_psx_maps[2].buffer=tmpaddr+0x1c00000;
 383   custom_psx_maps[3].buffer=tmpaddr+0x0000000;
 384   custom_psx_maps[4].buffer=tmpaddr+0x1000000;
 385 #if 0
 386   for(n = 0; n < 5; n++){
 387     sceClibPrintf("addr reserved %x\n",custom_psx_maps[n].buffer);
 388   }
 389 #endif
 390   return 0;
 391 }
 392
 393 void deinit_vita_mmap(){
 394   free(addr);
 395 }
 396
 397 void* pl_vita_mmap(unsigned long addr, size_t size, int is_fixed,
 398         enum psxMapTag tag)
 399 {
 400    (void)is_fixed;
 401    (void)addr;
 402
 403
 404     psx_map_t* custom_map = custom_psx_maps;
 405
 406     for (; custom_map->size; custom_map++)
 407     {
 408        if ((custom_map->size == size) && (custom_map->tag == tag))
 409        {
 410           return custom_map->buffer;
 411        }
 412     }
 413
 414
 415    return malloc(size);
 416 }
 417
 418 void pl_vita_munmap(void *ptr, size_t size, enum psxMapTag tag)
 419 {
 420    (void)tag;
 421
 422    psx_map_t* custom_map = custom_psx_maps;
 423
 424   for (; custom_map->size; custom_map++)
 425   {
 426      if ((custom_map->buffer == ptr))
 427      {
 428         return;
 429      }
 430   }
 431
 432    free(ptr);
 433 }
 434 #endif
 435
 436 static void *pl_mmap(unsigned int size)
 437 {
 438         return psxMap(0, size, 0, MAP_TAG_VRAM);
 439 }
 440
 441 static void pl_munmap(void *ptr, unsigned int size)
 442 {
 443         psxUnmap(ptr, size, MAP_TAG_VRAM);
 444 }
 445
 446 struct rearmed_cbs pl_rearmed_cbs = {
 447         .pl_vout_open = vout_open,
 448         .pl_vout_set_mode = vout_set_mode,
 449         .pl_vout_flip = vout_flip,
 450         .pl_vout_close = vout_close,
 451         .mmap = pl_mmap,
 452         .munmap = pl_munmap,
 453         /* from psxcounters */
 454         .gpu_hcnt = &hSyncCount,
 455         .gpu_frame_count = &frame_counter,
 456 };
 457
 458 void pl_frame_limit(void)
 459 {
 460         /* called once per frame, make psxCpu->Execute() above return */
 461         stop = 1;
 462 }
 463
 464 void pl_timing_prepare(int is_pal)
 465 {
 466         is_pal_mode = is_pal;
 467 }
 468
 469 void plat_trigger_vibrate(int pad, int low, int high)
 470 {
 471         if (!rumble_cb)
 472                 return;
 473
 474         if (in_enable_vibration)
 475         {
 476                 rumble_cb(pad, RETRO_RUMBLE_STRONG, high << 8);
 477                 rumble_cb(pad, RETRO_RUMBLE_WEAK, low ? 0xffff : 0x0);
 478     }
 479 }
 480
 481 void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in)
 482 {
 483 }
 484
 485 /* sound calls */
 486 static void snd_feed(void *buf, int bytes)
 487 {
 488         if (audio_batch_cb != NULL)
 489                 audio_batch_cb(buf, bytes / 4);
 490 }
 491
 492 void out_register_libretro(struct out_driver *drv)
 493 {
 494         drv->name = "libretro";
 495         drv->init = snd_init;
 496         drv->finish = snd_finish;
 497         drv->busy = snd_busy;
 498         drv->feed = snd_feed;
 499 }
 500
 501 /* libretro */
 502 void retro_set_environment(retro_environment_t cb)
 503 {
 504    environ_cb = cb;
 505
 506    if (cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &logging))
 507       log_cb = logging.log;
 508
 509    libretro_set_core_options(environ_cb);
 510 }
 511
 512 void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
 513 void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
 514 void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
 515 void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
 516 void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
 517
 518 unsigned retro_api_version(void)
 519 {
 520         return RETRO_API_VERSION;
 521 }
 522
 523 static int controller_port_variable(unsigned port, struct retro_variable *var)
 524 {
 525         if (port >= PORTS_NUMBER)
 526                 return 0;
 527
 528         if (!environ_cb)
 529                 return 0;
 530
 531         var->value = NULL;
 532         switch (port) {
 533         case 0:
 534                 var->key = "pcsx_rearmed_pad1type";
 535                 break;
 536         case 1:
 537                 var->key = "pcsx_rearmed_pad2type";
 538                 break;
 539         case 2:
 540                 var->key = "pcsx_rearmed_pad3type";
 541                 break;
 542         case 3:
 543                 var->key = "pcsx_rearmed_pad4type";
 544                 break;
 545         case 4:
 546                 var->key = "pcsx_rearmed_pad5type";
 547                 break;
 548         case 5:
 549                 var->key = "pcsx_rearmed_pad6type";
 550                 break;
 551         case 6:
 552                 var->key = "pcsx_rearmed_pad7type";
 553                 break;
 554         case 7:
 555                 var->key = "pcsx_rearmed_pad8type";
 556                 break;
 557         }
 558
 559         return environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, var) || var->value;
 560 }
 561
 562 static void update_controller_port_variable(unsigned port)
 563 {
 564         if (port >= PORTS_NUMBER)
 565                 return;
 566
 567         struct retro_variable var;
 568
 569         if (controller_port_variable(port, &var))
 570         {
 571                 if (strcmp(var.value, "standard") == 0)
 572                         in_type[port] = PSE_PAD_TYPE_STANDARD;
 573                 else if (strcmp(var.value, "analog") == 0)
 574                         in_type[port] = PSE_PAD_TYPE_ANALOGJOY;
 575                 else if (strcmp(var.value, "dualshock") == 0)
 576                         in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 577                 else if (strcmp(var.value, "negcon") == 0)
 578                         in_type[port] = PSE_PAD_TYPE_NEGCON;
 579                 else if (strcmp(var.value, "guncon") == 0)
 580                         in_type[port] = PSE_PAD_TYPE_GUNCON;
 581                 else if (strcmp(var.value, "none") == 0)
 582                         in_type[port] = PSE_PAD_TYPE_NONE;
 583                 // else 'default' case, do nothing
 584         }
 585 }
 586
 587 static void update_controller_port_device(unsigned port, unsigned device)
 588 {
 589         if (port >= PORTS_NUMBER)
 590                 return;
 591
 592         struct retro_variable var;
 593
 594         if (!controller_port_variable(port, &var))
 595                 return;
 596
 597         if (strcmp(var.value, "default") != 0)
 598                 return;
 599
 600         switch (device)
 601         {
 602         case RETRO_DEVICE_JOYPAD:
 603                 in_type[port] = PSE_PAD_TYPE_STANDARD;
 604                 break;
 605         case RETRO_DEVICE_ANALOG:
 606                 in_type[port] = PSE_PAD_TYPE_ANALOGPAD;
 607                 break;
 608         case RETRO_DEVICE_MOUSE:
 609                 in_type[port] = PSE_PAD_TYPE_MOUSE;
 610                 break;
 611         case RETRO_DEVICE_LIGHTGUN:
 612                 in_type[port] = PSE_PAD_TYPE_GUN;
 613                 break;
 614         case RETRO_DEVICE_NONE:
 615         default:
 616                 in_type[port] = PSE_PAD_TYPE_NONE;
 617         }
 618 }
 619
 620 static void update_multitap()
 621 {
 622         struct retro_variable var;
 623         int auto_case, port;
 624
 625         var.value = NULL;
 626         var.key = "pcsx_rearmed_multitap1";
 627         auto_case = 0;
 628         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 629         {
 630                 if (strcmp(var.value, "enabled") == 0)
 631                         multitap1 = 1;
 632                 else if (strcmp(var.value, "disabled") == 0)
 633                         multitap1 = 0;
 634                 else // 'auto' case
 635                         auto_case = 1;
 636         }
 637         else
 638                 auto_case = 1;
 639
 640         if (auto_case)
 641         {
 642                 // If a gamepad is plugged after port 2, we need a first multitap.
 643                 multitap1 = 0;
 644                 for (port = 2; port < PORTS_NUMBER; port++)
 645                         multitap1 |= in_type[port] != PSE_PAD_TYPE_NONE;
 646         }
 647
 648         var.value = NULL;
 649         var.key = "pcsx_rearmed_multitap2";
 650         auto_case = 0;
 651         if (environ_cb && (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value))
 652         {
 653                 if (strcmp(var.value, "enabled") == 0)
 654                         multitap2 = 1;
 655                 else if (strcmp(var.value, "disabled") == 0)
 656                         multitap2 = 0;
 657                 else // 'auto' case
 658                         auto_case = 1;
 659         }
 660         else
 661                 auto_case = 1;
 662
 663         if (auto_case)
 664         {
 665                 // If a gamepad is plugged after port 4, we need a second multitap.
 666                 multitap2 = 0;
 667                 for (port = 4; port < PORTS_NUMBER; port++)
 668                         multitap2 |= in_type[port] != PSE_PAD_TYPE_NONE;
 669         }
 670 }
 671
 672 void retro_set_controller_port_device(unsigned port, unsigned device)
 673 {
 674         SysPrintf("port %u  device %u",port,device);
 675
 676         if (port >= PORTS_NUMBER)
 677                 return;
 678
 679         update_controller_port_device(port, device);
 680         update_multitap();
 681 }
 682
 683 void retro_get_system_info(struct retro_system_info *info)
 684 {
 685         memset(info, 0, sizeof(*info));
 686         info->library_name = "PCSX-ReARMed";
 687 #ifndef GIT_VERSION
 688 #define GIT_VERSION ""
 689 #endif
 690         info->library_version = "r22" GIT_VERSION;
 691         info->valid_extensions = "bin|cue|img|mdf|pbp|toc|cbn|m3u|chd";
 692         info->need_fullpath = true;
 693 }
 694
 695 void retro_get_system_av_info(struct retro_system_av_info *info)
 696 {
 697
 698         unsigned geom_height = vout_height > 0 ? vout_height : 240;
 699         unsigned geom_width = vout_width > 0 ? vout_width : 320;
 700
 701         memset(info, 0, sizeof(*info));
 702         info->timing.fps            = is_pal_mode ? 50 : 60;
 703         info->timing.sample_rate    = 44100;
 704         info->geometry.base_width   = geom_width;
 705         info->geometry.base_height  = geom_height;
 706         info->geometry.max_width    = VOUT_MAX_WIDTH;
 707         info->geometry.max_height   = VOUT_MAX_HEIGHT;
 708         info->geometry.aspect_ratio = 4.0 / 3.0;
 709 }
 710
 711 /* savestates */
 712 size_t retro_serialize_size(void)
 713 {
 714         // it's currently 4380651-4397047 bytes,
 715         // but have some reserved for future
 716         return 0x440000;
 717 }
 718
 719 struct save_fp {
 720         char *buf;
 721         size_t pos;
 722         int is_write;
 723 };
 724
 725 static void *save_open(const char *name, const char *mode)
 726 {
 727         struct save_fp *fp;
 728
 729         if (name == NULL || mode == NULL)
 730                 return NULL;
 731
 732         fp = malloc(sizeof(*fp));
 733         if (fp == NULL)
 734                 return NULL;
 735
 736         fp->buf = (char *)name;
 737         fp->pos = 0;
 738         fp->is_write = (mode[0] == 'w' || mode[1] == 'w');
 739
 740         return fp;
 741 }
 742
 743 static int save_read(void *file, void *buf, u32 len)
 744 {
 745         struct save_fp *fp = file;
 746         if (fp == NULL || buf == NULL)
 747                 return -1;
 748
 749         memcpy(buf, fp->buf + fp->pos, len);
 750         fp->pos += len;
 751         return len;
 752 }
 753
 754 static int save_write(void *file, const void *buf, u32 len)
 755 {
 756         struct save_fp *fp = file;
 757         if (fp == NULL || buf == NULL)
 758                 return -1;
 759
 760         memcpy(fp->buf + fp->pos, buf, len);
 761         fp->pos += len;
 762         return len;
 763 }
 764
 765 static long save_seek(void *file, long offs, int whence)
 766 {
 767         struct save_fp *fp = file;
 768         if (fp == NULL)
 769                 return -1;
 770
 771         switch (whence) {
 772         case SEEK_CUR:
 773                 fp->pos += offs;
 774                 return fp->pos;
 775         case SEEK_SET:
 776                 fp->pos = offs;
 777                 return fp->pos;
 778         default:
 779                 return -1;
 780         }
 781 }
 782
 783 static void save_close(void *file)
 784 {
 785         struct save_fp *fp = file;
 786         size_t r_size = retro_serialize_size();
 787         if (fp == NULL)
 788                 return;
 789
 790         if (fp->pos > r_size)
 791                 SysPrintf("ERROR: save buffer overflow detected\n");
 792         else if (fp->is_write && fp->pos < r_size)
 793                 // make sure we don't save trash in leftover space
 794                 memset(fp->buf + fp->pos, 0, r_size - fp->pos);
 795         free(fp);
 796 }
 797
 798 bool retro_serialize(void *data, size_t size)
 799 {
 800         int ret = SaveState(data);
 801         return ret == 0 ? true : false;
 802 }
 803
 804 bool retro_unserialize(const void *data, size_t size)
 805 {
 806         int ret = LoadState(data);
 807         return ret == 0 ? true : false;
 808 }
 809
 810 /* cheats */
 811 void retro_cheat_reset(void)
 812 {
 813         ClearAllCheats();
 814 }
 815
 816 void retro_cheat_set(unsigned index, bool enabled, const char *code)
 817 {
 818         char buf[256];
 819         int ret;
 820
 821         // cheat funcs are destructive, need a copy..
 822         strncpy(buf, code, sizeof(buf));
 823         buf[sizeof(buf) - 1] = 0;
 824
 825         //Prepare buffered cheat for PCSX's AddCheat fucntion.
 826         int cursor=0;
 827         int nonhexdec=0;
 828         while (buf[cursor]){
 829                 if (!(ISHEXDEC)){
 830                         if (++nonhexdec%2){
 831                                 buf[cursor]=' ';
 832                         } else {
 833                                 buf[cursor]='\n';
 834                         }
 835                 }
 836                 cursor++;
 837         }
 838
 839
 840         if (index < NumCheats)
 841                 ret = EditCheat(index, "", buf);
 842         else
 843                 ret = AddCheat("", buf);
 844
 845         if (ret != 0)
 846                 SysPrintf("Failed to set cheat %#u\n", index);
 847         else if (index < NumCheats)
 848                 Cheats[index].Enabled = enabled;
 849 }
 850
 851 /* multidisk support */
 852 static bool disk_ejected;
 853 static unsigned int disk_current_index;
 854 static unsigned int disk_count;
 855 static struct disks_state {
 856         char *fname;
 857         int internal_index; // for multidisk eboots
 858 } disks[8];
 859
 860 static bool disk_set_eject_state(bool ejected)
 861 {
 862         // weird PCSX API..
 863         SetCdOpenCaseTime(ejected ? -1 : (time(NULL) + 2));
 864         LidInterrupt();
 865
 866         disk_ejected = ejected;
 867         return true;
 868 }
 869
 870 static bool disk_get_eject_state(void)
 871 {
 872         /* can't be controlled by emulated software */
 873         return disk_ejected;
 874 }
 875
 876 static unsigned int disk_get_image_index(void)
 877 {
 878         return disk_current_index;
 879 }
 880
 881 static bool disk_set_image_index(unsigned int index)
 882 {
 883         if (index >= sizeof(disks) / sizeof(disks[0]))
 884                 return false;
 885
 886         CdromId[0] = '\0';
 887         CdromLabel[0] = '\0';
 888
 889         if (disks[index].fname == NULL) {
 890                 SysPrintf("missing disk #%u\n", index);
 891                 CDR_shutdown();
 892
 893                 // RetroArch specifies "no disk" with index == count,
 894                 // so don't fail here..
 895                 disk_current_index = index;
 896                 return true;
 897         }
 898
 899         SysPrintf("switching to disk %u: \"%s\" #%d\n", index,
 900                 disks[index].fname, disks[index].internal_index);
 901
 902         cdrIsoMultidiskSelect = disks[index].internal_index;
 903         set_cd_image(disks[index].fname);
 904         if (ReloadCdromPlugin() < 0) {
 905                 SysPrintf("failed to load cdr plugin\n");
 906                 return false;
 907         }
 908         if (CDR_open() < 0) {
 909                 SysPrintf("failed to open cdr plugin\n");
 910                 return false;
 911         }
 912
 913         if (!disk_ejected) {
 914                 SetCdOpenCaseTime(time(NULL) + 2);
 915                 LidInterrupt();
 916         }
 917
 918         disk_current_index = index;
 919         return true;
 920 }
 921
 922 static unsigned int disk_get_num_images(void)
 923 {
 924         return disk_count;
 925 }
 926
 927 static bool disk_replace_image_index(unsigned index,
 928         const struct retro_game_info *info)
 929 {
 930         char *old_fname;
 931         bool ret = true;
 932
 933         if (index >= sizeof(disks) / sizeof(disks[0]))
 934                 return false;
 935
 936         old_fname = disks[index].fname;
 937         disks[index].fname = NULL;
 938         disks[index].internal_index = 0;
 939
 940         if (info != NULL) {
 941                 disks[index].fname = strdup(info->path);
 942                 if (index == disk_current_index)
 943                         ret = disk_set_image_index(index);
 944         }
 945
 946         if (old_fname != NULL)
 947                 free(old_fname);
 948
 949         return ret;
 950 }
 951
 952 static bool disk_add_image_index(void)
 953 {
 954         if (disk_count >= 8)
 955                 return false;
 956
 957         disk_count++;
 958         return true;
 959 }
 960
 961 static struct retro_disk_control_callback disk_control = {
 962         .set_eject_state = disk_set_eject_state,
 963         .get_eject_state = disk_get_eject_state,
 964         .get_image_index = disk_get_image_index,
 965         .set_image_index = disk_set_image_index,
 966         .get_num_images = disk_get_num_images,
 967         .replace_image_index = disk_replace_image_index,
 968         .add_image_index = disk_add_image_index,
 969 };
 970
 971 // just in case, maybe a win-rt port in the future?
 972 #ifdef _WIN32
 973 #define SLASH '\\'
 974 #else
 975 #define SLASH '/'
 976 #endif
 977
 978 #ifndef PATH_MAX
 979 #define PATH_MAX  4096
 980 #endif
 981
 982 static char base_dir[1024];
 983
 984 static bool read_m3u(const char *file)
 985 {
 986         char line[1024];
 987         char name[PATH_MAX];
 988         FILE *f = fopen(file, "r");
 989         if (!f)
 990                 return false;
 991
 992         while (fgets(line, sizeof(line), f) && disk_count < sizeof(disks) / sizeof(disks[0])) {
 993                 if (line[0] == '#')
 994                         continue;
 995                 char *carrige_return = strchr(line, '\r');
 996                 if (carrige_return)
 997                         *carrige_return = '\0';
 998                 char *newline = strchr(line, '\n');
 999                 if (newline)
1000                         *newline = '\0';
1001
1002                 if (line[0] != '\0')
1003                 {
1004                         snprintf(name, sizeof(name), "%s%c%s", base_dir, SLASH, line);
1005                         disks[disk_count++].fname = strdup(name);
1006                 }
1007         }
1008
1009         fclose(f);
1010         return (disk_count != 0);
1011 }
1012
1013 static void extract_directory(char *buf, const char *path, size_t size)
1014 {
1015    char *base;
1016    strncpy(buf, path, size - 1);
1017    buf[size - 1] = '\0';
1018
1019    base = strrchr(buf, '/');
1020    if (!base)
1021       base = strrchr(buf, '\\');
1022
1023    if (base)
1024       *base = '\0';
1025    else
1026    {
1027       buf[0] = '.';
1028       buf[1] = '\0';
1029    }
1030 }
1031
1032 #if defined(__QNX__) || defined(_WIN32)
1033 /* Blackberry QNX doesn't have strcasestr */
1034
1035 /*
1036  * Find the first occurrence of find in s, ignore case.
1037  */
1038 char *
1039 strcasestr(const char *s, const char*find)
1040 {
1041         char c, sc;
1042         size_t len;
1043
1044         if ((c = *find++) != 0) {
1045                 c = tolower((unsigned char)c);
1046                 len = strlen(find);
1047                 do {
1048                         do {
1049                                 if ((sc = *s++) == 0)
1050                                         return (NULL);
1051                         } while ((char)tolower((unsigned char)sc) != c);
1052                 } while (strncasecmp(s, find, len) != 0);
1053                 s--;
1054         }
1055         return ((char *)s);
1056 }
1057 #endif
1058
1059 static void set_retro_memmap(void)
1060 {
1061         struct retro_memory_map retromap = { 0 };
1062         struct retro_memory_descriptor mmap =
1063         {
1064                 0, psxM, 0, 0, 0, 0, 0x200000
1065         };
1066
1067         retromap.descriptors = &mmap;
1068         retromap.num_descriptors = 1;
1069
1070     environ_cb(RETRO_ENVIRONMENT_SET_MEMORY_MAPS, &retromap);
1071 }
1072
1073 bool retro_load_game(const struct retro_game_info *info)
1074 {
1075         size_t i;
1076         bool is_m3u = (strcasestr(info->path, ".m3u") != NULL);
1077
1078    struct retro_input_descriptor desc[] = {
1079       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1080       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1081       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1082       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1083       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1084       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1085       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1086       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1087       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1088       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1089       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1090       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1091       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1092       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1093       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1094       { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1095       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1096       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1097       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1098       { 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1099
1100
1101       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1102       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1103       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1104       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1105       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1106       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1107       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1108       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1109       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1110       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1111       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1112       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1113       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1114       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1115       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1116       { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1117       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1118       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1119       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1120       { 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1121
1122       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1123       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1124       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1125       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1126       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1127       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1128       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1129       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1130       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1131       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1132       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1133       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1134       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1135       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1136       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1137       { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1138       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1139       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1140       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1141       { 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1142
1143       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1144       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1145       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1146       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1147       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1148       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1149       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1150       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1151       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1152       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1153       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1154       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1155       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1156       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1157       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1158       { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1159       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1160       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1161       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1162       { 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1163
1164       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1165       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1166       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1167       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1168       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1169       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1170       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1171       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1172       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1173       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1174       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1175       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1176       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1177       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1178       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1179       { 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1180       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1181       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1182       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1183       { 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1184
1185       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1186       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1187       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1188       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1189       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1190       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1191       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1192       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1193       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1194       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1195       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1196       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1197       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1198       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1199       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1200       { 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1201       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1202       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1203       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1204       { 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1205
1206       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1207       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1208       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1209       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1210       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1211       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1212       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1213       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1214       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1215       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1216       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1217       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1218       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1219       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1220       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1221       { 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1222       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1223       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1224       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1225       { 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1226
1227       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
1228       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
1229       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
1230       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
1231       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "Cross" },
1232       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "Circle" },
1233       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X,     "Triangle" },
1234       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y,     "Square" },
1235       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L,     "L1" },
1236       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2,    "L2" },
1237       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3,    "L3" },
1238       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R,     "R1" },
1239       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2,    "R2" },
1240       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3,    "R3" },
1241       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,    "Select" },
1242       { 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
1243       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
1244       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
1245       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
1246       { 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
1247
1248       { 0 },
1249    };
1250
1251          frame_count = 0;
1252
1253    environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
1254
1255 #ifdef FRONTEND_SUPPORTS_RGB565
1256         enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
1257         if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
1258                 SysPrintf("RGB565 supported, using it\n");
1259         }
1260 #endif
1261
1262         if (info == NULL || info->path == NULL) {
1263                 SysPrintf("info->path required\n");
1264                 return false;
1265         }
1266
1267         if (plugins_opened) {
1268                 ClosePlugins();
1269                 plugins_opened = 0;
1270         }
1271
1272         for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) {
1273                 if (disks[i].fname != NULL) {
1274                         free(disks[i].fname);
1275                         disks[i].fname = NULL;
1276                 }
1277                 disks[i].internal_index = 0;
1278         }
1279
1280         disk_current_index = 0;
1281         extract_directory(base_dir, info->path, sizeof(base_dir));
1282
1283         if (is_m3u) {
1284                 if (!read_m3u(info->path)) {
1285                         log_cb(RETRO_LOG_INFO, "failed to read m3u file\n");
1286                         return false;
1287                 }
1288         } else {
1289                 disk_count = 1;
1290                 disks[0].fname = strdup(info->path);
1291         }
1292
1293         set_cd_image(disks[0].fname);
1294
1295         /* have to reload after set_cd_image for correct cdr plugin */
1296         if (LoadPlugins() == -1) {
1297                 log_cb(RETRO_LOG_INFO, "failed to load plugins\n");
1298                 return false;
1299         }
1300
1301         plugins_opened = 1;
1302         NetOpened = 0;
1303
1304         if (OpenPlugins() == -1) {
1305                 log_cb(RETRO_LOG_INFO, "failed to open plugins\n");
1306                 return false;
1307         }
1308
1309         plugin_call_rearmed_cbs();
1310         dfinput_activate();
1311
1312         if (CheckCdrom() == -1) {
1313         log_cb(RETRO_LOG_INFO, "unsupported/invalid CD image: %s\n", info->path);
1314                 return false;
1315         }
1316
1317         SysReset();
1318
1319         if (LoadCdrom() == -1) {
1320                 log_cb(RETRO_LOG_INFO, "could not load CD\n");
1321                 return false;
1322         }
1323         emu_on_new_cd(0);
1324
1325         // multidisk images
1326         if (!is_m3u) {
1327                 disk_count = cdrIsoMultidiskCount < 8 ? cdrIsoMultidiskCount : 8;
1328                 for (i = 1; i < sizeof(disks) / sizeof(disks[0]) && i < cdrIsoMultidiskCount; i++) {
1329                         disks[i].fname = strdup(info->path);
1330                         disks[i].internal_index = i;
1331                 }
1332         }
1333
1334         set_retro_memmap();
1335
1336         return true;
1337 }
1338
1339 unsigned retro_get_region(void)
1340 {
1341         return is_pal_mode ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
1342 }
1343
1344 void *retro_get_memory_data(unsigned id)
1345 {
1346         if (id == RETRO_MEMORY_SAVE_RAM)
1347                 return Mcd1Data;
1348         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1349                 return psxM;
1350         else
1351                 return NULL;
1352 }
1353
1354 size_t retro_get_memory_size(unsigned id)
1355 {
1356         if (id == RETRO_MEMORY_SAVE_RAM)
1357                 return MCD_SIZE;
1358         else if (id == RETRO_MEMORY_SYSTEM_RAM)
1359                 return 0x200000;
1360         else
1361                 return 0;
1362 }
1363
1364 void retro_reset(void)
1365 {
1366    //hack to prevent retroarch freezing when reseting in the menu but not while running with the hot key
1367    rebootemu = 1;
1368         //SysReset();
1369 }
1370
1371 static const unsigned short retro_psx_map[] = {
1372         [RETRO_DEVICE_ID_JOYPAD_B]      = 1 << DKEY_CROSS,
1373         [RETRO_DEVICE_ID_JOYPAD_Y]      = 1 << DKEY_SQUARE,
1374         [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT,
1375         [RETRO_DEVICE_ID_JOYPAD_START]  = 1 << DKEY_START,
1376         [RETRO_DEVICE_ID_JOYPAD_UP]     = 1 << DKEY_UP,
1377         [RETRO_DEVICE_ID_JOYPAD_DOWN]   = 1 << DKEY_DOWN,
1378         [RETRO_DEVICE_ID_JOYPAD_LEFT]   = 1 << DKEY_LEFT,
1379         [RETRO_DEVICE_ID_JOYPAD_RIGHT]  = 1 << DKEY_RIGHT,
1380         [RETRO_DEVICE_ID_JOYPAD_A]      = 1 << DKEY_CIRCLE,
1381         [RETRO_DEVICE_ID_JOYPAD_X]      = 1 << DKEY_TRIANGLE,
1382         [RETRO_DEVICE_ID_JOYPAD_L]      = 1 << DKEY_L1,
1383         [RETRO_DEVICE_ID_JOYPAD_R]      = 1 << DKEY_R1,
1384         [RETRO_DEVICE_ID_JOYPAD_L2]     = 1 << DKEY_L2,
1385         [RETRO_DEVICE_ID_JOYPAD_R2]     = 1 << DKEY_R2,
1386         [RETRO_DEVICE_ID_JOYPAD_L3]     = 1 << DKEY_L3,
1387         [RETRO_DEVICE_ID_JOYPAD_R3]     = 1 << DKEY_R3,
1388 };
1389 #define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0]))
1390
1391 static void update_variables(bool in_flight)
1392 {
1393    struct retro_variable var;
1394    int i;
1395    int gpu_peops_fix = 0;
1396
1397    var.value = NULL;
1398    var.key = "pcsx_rearmed_frameskip";
1399    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1400       pl_rearmed_cbs.frameskip = atoi(var.value);
1401
1402    var.value = NULL;
1403    var.key = "pcsx_rearmed_region";
1404    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1405    {
1406       Config.PsxAuto = 0;
1407       if (strcmp(var.value, "auto") == 0)
1408          Config.PsxAuto = 1;
1409       else if (strcmp(var.value, "NTSC") == 0)
1410          Config.PsxType = 0;
1411       else if (strcmp(var.value, "PAL") == 0)
1412          Config.PsxType = 1;
1413    }
1414
1415    for (i = 0; i < PORTS_NUMBER; i++)
1416       update_controller_port_variable(i);
1417
1418    update_multitap();
1419
1420    var.value = NULL;
1421    var.key = "pcsx_rearmed_negcon_deadzone";
1422    negcon_deadzone = 0;
1423    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1424    {
1425       negcon_deadzone = (int)(atoi(var.value) * 0.01f * NEGCON_RANGE);
1426    }
1427
1428    var.value = NULL;
1429    var.key = "pcsx_rearmed_negcon_response";
1430    negcon_linearity = 1;
1431    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1432    {
1433       if (strcmp(var.value, "quadratic") == 0){
1434          negcon_linearity = 2;
1435       } else if (strcmp(var.value, "cubic") == 0){
1436          negcon_linearity = 3;
1437       }
1438    }
1439
1440    var.value = NULL;
1441    var.key = "pcsx_rearmed_vibration";
1442
1443    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1444    {
1445       if (strcmp(var.value, "disabled") == 0)
1446          in_enable_vibration = 0;
1447       else if (strcmp(var.value, "enabled") == 0)
1448          in_enable_vibration = 1;
1449    }
1450
1451    var.value = NULL;
1452    var.key = "pcsx_rearmed_dithering";
1453
1454    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1455    {
1456       if (strcmp(var.value, "disabled") == 0) {
1457          pl_rearmed_cbs.gpu_peops.iUseDither = 0;
1458          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 0;
1459          pl_rearmed_cbs.gpu_unai.dithering = 0;
1460 #ifdef __ARM_NEON__
1461          pl_rearmed_cbs.gpu_neon.allow_dithering = 0;
1462 #endif
1463       }
1464       else if (strcmp(var.value, "enabled") == 0) {
1465          pl_rearmed_cbs.gpu_peops.iUseDither = 1;
1466          pl_rearmed_cbs.gpu_peopsgl.bDrawDither = 1;
1467          pl_rearmed_cbs.gpu_unai.dithering = 1;
1468 #ifdef __ARM_NEON__
1469          pl_rearmed_cbs.gpu_neon.allow_dithering = 1;
1470 #endif
1471       }
1472    }
1473
1474 #ifdef __ARM_NEON__
1475    var.value = "NULL";
1476    var.key = "pcsx_rearmed_neon_interlace_enable";
1477
1478    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1479    {
1480       if (strcmp(var.value, "disabled") == 0)
1481          pl_rearmed_cbs.gpu_neon.allow_interlace = 0;
1482       else if (strcmp(var.value, "enabled") == 0)
1483          pl_rearmed_cbs.gpu_neon.allow_interlace = 1;
1484    }
1485
1486    var.value = NULL;
1487    var.key = "pcsx_rearmed_neon_enhancement_enable";
1488
1489    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1490    {
1491       if (strcmp(var.value, "disabled") == 0)
1492          pl_rearmed_cbs.gpu_neon.enhancement_enable = 0;
1493       else if (strcmp(var.value, "enabled") == 0)
1494          pl_rearmed_cbs.gpu_neon.enhancement_enable = 1;
1495    }
1496
1497    var.value = NULL;
1498    var.key = "pcsx_rearmed_neon_enhancement_no_main";
1499
1500    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1501    {
1502       if (strcmp(var.value, "disabled") == 0)
1503          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 0;
1504       else if (strcmp(var.value, "enabled") == 0)
1505          pl_rearmed_cbs.gpu_neon.enhancement_no_main = 1;
1506    }
1507 #endif
1508
1509    var.value = "NULL";
1510    var.key = "pcsx_rearmed_duping_enable";
1511
1512    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1513    {
1514       if (strcmp(var.value, "disabled") == 0)
1515          duping_enable = false;
1516       else if (strcmp(var.value, "enabled") == 0)
1517          duping_enable = true;
1518    }
1519
1520    var.value = "NULL";
1521    var.key = "pcsx_rearmed_display_internal_fps";
1522
1523    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1524    {
1525       if (strcmp(var.value, "disabled") == 0)
1526          display_internal_fps = false;
1527       else if (strcmp(var.value, "enabled") == 0)
1528          display_internal_fps = true;
1529    }
1530
1531 #ifndef DRC_DISABLE
1532    var.value = NULL;
1533    var.key = "pcsx_rearmed_drc";
1534
1535    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1536    {
1537       R3000Acpu *prev_cpu = psxCpu;
1538
1539 #ifdef _3DS
1540       if(!__ctr_svchax)
1541          Config.Cpu = CPU_INTERPRETER;
1542       else
1543 #endif
1544       if (strcmp(var.value, "disabled") == 0)
1545          Config.Cpu = CPU_INTERPRETER;
1546       else if (strcmp(var.value, "enabled") == 0)
1547          Config.Cpu = CPU_DYNAREC;
1548
1549       psxCpu = (Config.Cpu == CPU_INTERPRETER) ? &psxInt : &psxRec;
1550       if (psxCpu != prev_cpu) {
1551          prev_cpu->Shutdown();
1552          psxCpu->Init();
1553          psxCpu->Reset(); // not really a reset..
1554       }
1555    }
1556 #endif
1557
1558    var.value = "NULL";
1559    var.key = "pcsx_rearmed_spu_reverb";
1560
1561    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1562    {
1563       if (strcmp(var.value, "disabled") == 0)
1564          spu_config.iUseReverb = false;
1565       else if (strcmp(var.value, "enabled") == 0)
1566          spu_config.iUseReverb = true;
1567    }
1568
1569    var.value = "NULL";
1570    var.key = "pcsx_rearmed_spu_interpolation";
1571
1572    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1573    {
1574       if (strcmp(var.value, "simple") == 0)
1575          spu_config.iUseInterpolation = 1;
1576       else if (strcmp(var.value, "gaussian") == 0)
1577          spu_config.iUseInterpolation = 2;
1578       else if (strcmp(var.value, "cubic") == 0)
1579          spu_config.iUseInterpolation = 3;
1580       else if (strcmp(var.value, "off") == 0)
1581          spu_config.iUseInterpolation = 0;
1582    }
1583
1584    var.value = "NULL";
1585    var.key = "pcsx_rearmed_pe2_fix";
1586
1587    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1588    {
1589       if (strcmp(var.value, "disabled") == 0)
1590          Config.RCntFix = 0;
1591       else if (strcmp(var.value, "enabled") == 0)
1592          Config.RCntFix = 1;
1593    }
1594
1595    var.value = "NULL";
1596    var.key = "pcsx_rearmed_idiablofix";
1597
1598    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1599    {
1600       if (strcmp(var.value, "disabled") == 0)
1601          spu_config.idiablofix = 0;
1602       else if (strcmp(var.value, "enabled") == 0)
1603          spu_config.idiablofix = 1;
1604    }
1605
1606    var.value = "NULL";
1607    var.key = "pcsx_rearmed_inuyasha_fix";
1608
1609    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1610    {
1611       if (strcmp(var.value, "disabled") == 0)
1612          Config.VSyncWA = 0;
1613       else if (strcmp(var.value, "enabled") == 0)
1614          Config.VSyncWA = 1;
1615    }
1616
1617    var.value = NULL;
1618    var.key = "pcsx_rearmed_noxadecoding";
1619    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1620    {
1621       if (strcmp(var.value, "disabled") == 0)
1622          Config.Xa = 1;
1623       else
1624          Config.Xa = 0;
1625    }
1626
1627    var.value = NULL;
1628    var.key = "pcsx_rearmed_nocdaudio";
1629    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1630    {
1631       if (strcmp(var.value, "disabled") == 0)
1632          Config.Cdda = 1;
1633       else
1634          Config.Cdda = 0;
1635    }
1636
1637    var.value = NULL;
1638    var.key = "pcsx_rearmed_spuirq";
1639    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1640    {
1641       if (strcmp(var.value, "disabled") == 0)
1642          Config.SpuIrq = 0;
1643       else
1644          Config.SpuIrq = 1;
1645    }
1646
1647 #ifndef DRC_DISABLE
1648    var.value = NULL;
1649    var.key = "pcsx_rearmed_nosmccheck";
1650    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1651    {
1652       if (strcmp(var.value, "enabled") == 0)
1653          new_dynarec_hacks |= NDHACK_NO_SMC_CHECK;
1654       else
1655          new_dynarec_hacks &= ~NDHACK_NO_SMC_CHECK;
1656    }
1657
1658    var.value = NULL;
1659    var.key = "pcsx_rearmed_gteregsunneeded";
1660    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1661    {
1662       if (strcmp(var.value, "enabled") == 0)
1663          new_dynarec_hacks |= NDHACK_GTE_UNNEEDED;
1664       else
1665          new_dynarec_hacks &= ~NDHACK_GTE_UNNEEDED;
1666    }
1667
1668    var.value = NULL;
1669    var.key = "pcsx_rearmed_nogteflags";
1670    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1671    {
1672       if (strcmp(var.value, "enabled") == 0)
1673          new_dynarec_hacks |= NDHACK_GTE_NO_FLAGS;
1674       else
1675          new_dynarec_hacks &= ~NDHACK_GTE_NO_FLAGS;
1676    }
1677 #endif
1678
1679 #ifdef GPU_PEOPS
1680    var.value = "NULL";
1681    var.key = "pcsx_rearmed_gpu_peops_odd_even_bit";
1682
1683    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1684    {
1685       if (strcmp(var.value, "enabled") == 0)
1686          gpu_peops_fix |= GPU_PEOPS_ODD_EVEN_BIT;
1687    }
1688
1689    var.value = "NULL";
1690    var.key = "pcsx_rearmed_gpu_peops_expand_screen_width";
1691
1692    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1693    {
1694       if (strcmp(var.value, "enabled") == 0)
1695          gpu_peops_fix |= GPU_PEOPS_EXPAND_SCREEN_WIDTH;
1696    }
1697
1698    var.value = "NULL";
1699    var.key = "pcsx_rearmed_gpu_peops_ignore_brightness";
1700
1701    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1702    {
1703       if (strcmp(var.value, "enabled") == 0)
1704          gpu_peops_fix |= GPU_PEOPS_IGNORE_BRIGHTNESS;
1705    }
1706
1707    var.value = "NULL";
1708    var.key = "pcsx_rearmed_gpu_peops_disable_coord_check";
1709
1710    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1711    {
1712       if (strcmp(var.value, "enabled") == 0)
1713          gpu_peops_fix |= GPU_PEOPS_DISABLE_COORD_CHECK;
1714    }
1715
1716    var.value = "NULL";
1717    var.key = "pcsx_rearmed_gpu_peops_lazy_screen_update";
1718
1719    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1720    {
1721       if (strcmp(var.value, "enabled") == 0)
1722          gpu_peops_fix |= GPU_PEOPS_LAZY_SCREEN_UPDATE;
1723    }
1724
1725    var.value = "NULL";
1726    var.key = "pcsx_rearmed_gpu_peops_old_frame_skip";
1727
1728    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1729    {
1730       if (strcmp(var.value, "enabled") == 0)
1731          gpu_peops_fix |= GPU_PEOPS_OLD_FRAME_SKIP;
1732    }
1733
1734    var.value = "NULL";
1735    var.key = "pcsx_rearmed_gpu_peops_repeated_triangles";
1736
1737    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1738    {
1739       if (strcmp(var.value, "enabled") == 0)
1740          gpu_peops_fix |= GPU_PEOPS_REPEATED_TRIANGLES;
1741    }
1742
1743    var.value = "NULL";
1744    var.key = "pcsx_rearmed_gpu_peops_quads_with_triangles";
1745
1746    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1747    {
1748       if (strcmp(var.value, "enabled") == 0)
1749          gpu_peops_fix |= GPU_PEOPS_QUADS_WITH_TRIANGLES;
1750    }
1751
1752    var.value = "NULL";
1753    var.key = "pcsx_rearmed_gpu_peops_fake_busy_state";
1754
1755    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1756    {
1757       if (strcmp(var.value, "enabled") == 0)
1758          gpu_peops_fix |= GPU_PEOPS_FAKE_BUSY_STATE;
1759    }
1760
1761    if (pl_rearmed_cbs.gpu_peops.dwActFixes != gpu_peops_fix)
1762       pl_rearmed_cbs.gpu_peops.dwActFixes = gpu_peops_fix;
1763
1764
1765    /* Show/hide core options */
1766
1767    var.key = "pcsx_rearmed_show_gpu_peops_settings";
1768    var.value = NULL;
1769
1770    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1771    {
1772       int show_advanced_gpu_peops_settings_prev = show_advanced_gpu_peops_settings;
1773
1774       show_advanced_gpu_peops_settings = 1;
1775       if (strcmp(var.value, "disabled") == 0)
1776          show_advanced_gpu_peops_settings = 0;
1777
1778       if (show_advanced_gpu_peops_settings != show_advanced_gpu_peops_settings_prev)
1779       {
1780          unsigned i;
1781          struct retro_core_option_display option_display;
1782          char gpu_peops_option[9][45] = {
1783             "pcsx_rearmed_gpu_peops_odd_even_bit",
1784             "pcsx_rearmed_gpu_peops_expand_screen_width",
1785             "pcsx_rearmed_gpu_peops_ignore_brightness",
1786             "pcsx_rearmed_gpu_peops_disable_coord_check",
1787             "pcsx_rearmed_gpu_peops_lazy_screen_update",
1788             "pcsx_rearmed_gpu_peops_old_frame_skip",
1789             "pcsx_rearmed_gpu_peops_repeated_triangles",
1790             "pcsx_rearmed_gpu_peops_quads_with_triangles",
1791             "pcsx_rearmed_gpu_peops_fake_busy_state",
1792          };
1793
1794          option_display.visible = show_advanced_gpu_peops_settings;
1795
1796          for (i = 0; i < 9; i++)
1797          {
1798             option_display.key = gpu_peops_option[i];
1799             environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
1800          }
1801       }
1802    }
1803 #endif
1804
1805 #ifdef GPU_UNAI
1806    var.key = "pcsx_rearmed_gpu_unai_ilace_force";
1807    var.value = NULL;
1808
1809    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1810    {
1811       if (strcmp(var.value, "disabled") == 0)
1812          pl_rearmed_cbs.gpu_unai.ilace_force = 0;
1813       else if (strcmp(var.value, "enabled") == 0)
1814          pl_rearmed_cbs.gpu_unai.ilace_force = 1;
1815    }
1816
1817    var.key = "pcsx_rearmed_gpu_unai_pixel_skip";
1818    var.value = NULL;
1819
1820    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1821    {
1822       if (strcmp(var.value, "disabled") == 0)
1823          pl_rearmed_cbs.gpu_unai.pixel_skip = 0;
1824       else if (strcmp(var.value, "enabled") == 0)
1825          pl_rearmed_cbs.gpu_unai.pixel_skip = 1;
1826    }
1827
1828    var.key = "pcsx_rearmed_gpu_unai_lighting";
1829    var.value = NULL;
1830
1831    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1832    {
1833       if (strcmp(var.value, "disabled") == 0)
1834          pl_rearmed_cbs.gpu_unai.lighting = 0;
1835       else if (strcmp(var.value, "enabled") == 0)
1836          pl_rearmed_cbs.gpu_unai.lighting = 1;
1837    }
1838
1839    var.key = "pcsx_rearmed_gpu_unai_fast_lighting";
1840    var.value = NULL;
1841
1842    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1843    {
1844       if (strcmp(var.value, "disabled") == 0)
1845          pl_rearmed_cbs.gpu_unai.fast_lighting = 0;
1846       else if (strcmp(var.value, "enabled") == 0)
1847          pl_rearmed_cbs.gpu_unai.fast_lighting = 1;
1848    }
1849
1850    var.key = "pcsx_rearmed_gpu_unai_blending";
1851    var.value = NULL;
1852
1853    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1854    {
1855       if (strcmp(var.value, "disabled") == 0)
1856          pl_rearmed_cbs.gpu_unai.blending = 0;
1857       else if (strcmp(var.value, "enabled") == 0)
1858          pl_rearmed_cbs.gpu_unai.blending = 1;
1859    }
1860
1861    var.key = "pcsx_rearmed_show_gpu_unai_settings";
1862    var.value = NULL;
1863
1864    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
1865    {
1866       int show_advanced_gpu_unai_settings_prev = show_advanced_gpu_unai_settings;
1867
1868       show_advanced_gpu_unai_settings = 1;
1869       if (strcmp(var.value, "disabled") == 0)
1870          show_advanced_gpu_unai_settings = 0;
1871
1872       if (show_advanced_gpu_unai_settings != show_advanced_gpu_unai_settings_prev)
1873       {
1874          unsigned i;
1875          struct retro_core_option_display option_display;
1876          char gpu_unai_option[5][40] = {
1877             "pcsx_rearmed_gpu_unai_blending",
1878             "pcsx_rearmed_gpu_unai_lighting",
1879             "pcsx_rearmed_gpu_unai_fast_lighting",
1880             "pcsx_rearmed_gpu_unai_ilace_force",
1881             "pcsx_rearmed_gpu_unai_pixel_skip",
1882          };
1883
1884          option_display.visible = show_advanced_gpu_unai_settings;
1885
1886          for (i = 0; i < 5; i++)
1887          {
1888             option_display.key = gpu_unai_option[i];
1889             environ_cb(RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY, &option_display);
1890          }
1891       }
1892    }
1893 #endif // GPU_UNAI
1894
1895    if (in_flight) {
1896       // inform core things about possible config changes
1897       plugin_call_rearmed_cbs();
1898
1899       if (GPU_open != NULL && GPU_close != NULL) {
1900          GPU_close();
1901          GPU_open(&gpuDisp, "PCSX", NULL);
1902       }
1903
1904       dfinput_activate();
1905    }
1906    else
1907    {
1908       //not yet running
1909
1910       //bootlogo display hack
1911       if (found_bios) {
1912          var.value = "NULL";
1913          var.key = "pcsx_rearmed_show_bios_bootlogo";
1914          if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1915          {
1916             Config.SlowBoot = 0;
1917             rebootemu = 0;
1918             if (strcmp(var.value, "enabled") == 0)
1919             {
1920                Config.SlowBoot = 1;
1921                rebootemu = 1;
1922             }
1923          }
1924       }
1925 #ifndef DRC_DISABLE
1926       var.value = "NULL";
1927       var.key = "pcsx_rearmed_psxclock";
1928       if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
1929       {
1930          int psxclock = atoi(var.value);
1931          cycle_multiplier = 10000 / psxclock;
1932       }
1933 #endif
1934    }
1935 }
1936
1937 // Taken from beetle-psx-libretro
1938 static uint16_t get_analog_button(int16_t ret, retro_input_state_t input_state_cb, int player_index, int id)
1939 {
1940         // NOTE: Analog buttons were added Nov 2017. Not all front-ends support this
1941         // feature (or pre-date it) so we need to handle this in a graceful way.
1942
1943         // First, try and get an analog value using the new libretro API constant
1944         uint16_t button = input_state_cb(player_index,
1945                                                                         RETRO_DEVICE_ANALOG,
1946                                                                         RETRO_DEVICE_INDEX_ANALOG_BUTTON,
1947                                                                         id);
1948         button = MIN(button / 128, 255);
1949
1950         if (button == 0)
1951         {
1952                 // If we got exactly zero, we're either not pressing the button, or the front-end
1953                 // is not reporting analog values. We need to do a second check using the classic
1954                 // digital API method, to at least get some response - better than nothing.
1955
1956                 // NOTE: If we're really just not holding the button, we're still going to get zero.
1957
1958                 button = (ret & (1 << id)) ? 255 : 0;
1959         }
1960
1961         return button;
1962 }
1963
1964 void retro_run(void)
1965 {
1966         int i;
1967         //SysReset must be run while core is running,Not in menu (Locks up Retroarch)
1968         if (rebootemu != 0) {
1969                 rebootemu = 0;
1970                 SysReset();
1971                 if (!Config.HLE && !Config.SlowBoot) {
1972                         // skip BIOS logos
1973                         psxRegs.pc = psxRegs.GPR.n.ra;
1974                 }
1975         }
1976
1977         if (display_internal_fps) {
1978                 frame_count++;
1979
1980                 if (frame_count % INTERNAL_FPS_SAMPLE_PERIOD == 0) {
1981                         unsigned internal_fps = pl_rearmed_cbs.flip_cnt * (is_pal_mode ? 50 : 60) / INTERNAL_FPS_SAMPLE_PERIOD;
1982                         char str[64];
1983                         const char *strc = (const char*)str;
1984                         struct retro_message msg =
1985                         {
1986                                 strc,
1987                                 180
1988                         };
1989
1990                         str[0] = '\0';
1991
1992                         snprintf(str, sizeof(str), "Internal FPS: %2d", internal_fps);
1993
1994                         pl_rearmed_cbs.flip_cnt = 0;
1995
1996                         environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &msg);
1997                 }
1998         }
1999    else
2000                 frame_count = 0;
2001
2002         input_poll_cb();
2003
2004         bool updated = false;
2005         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
2006                 update_variables(true);
2007
2008         // reset all keystate, query libretro for keystate
2009         int j;
2010         int lsx;
2011         int rsy;
2012         float negcon_twist_amplitude;
2013         int negcon_i_rs;
2014         int negcon_ii_rs;
2015         for(i = 0; i < PORTS_NUMBER; i++)
2016    {
2017       int16_t ret    = 0;
2018                 in_keystate[i] = 0;
2019
2020                 if (in_type[i] == PSE_PAD_TYPE_NONE)
2021                         continue;
2022
2023       if (libretro_supports_bitmasks)
2024          ret = input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
2025       else
2026       {
2027          unsigned j;
2028          for (j = 0; j < (RETRO_DEVICE_ID_JOYPAD_R3+1); j++)
2029          {
2030             if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, j))
2031                ret |= (1 << j);
2032          }
2033       }
2034
2035                 if (in_type[i] == PSE_PAD_TYPE_GUNCON)
2036                 {
2037                         //ToDo move across to:
2038                         //RETRO_DEVICE_ID_LIGHTGUN_SCREEN_X
2039                         //RETRO_DEVICE_ID_LIGHTGUN_SCREEN_Y
2040                         //RETRO_DEVICE_ID_LIGHTGUN_TRIGGER
2041                         //RETRO_DEVICE_ID_LIGHTGUN_RELOAD
2042                         //RETRO_DEVICE_ID_LIGHTGUN_AUX_A
2043                         //RETRO_DEVICE_ID_LIGHTGUN_AUX_B
2044                         //Though not sure these are hooked up properly on the Pi
2045
2046                         //ToDo
2047                         //Put the controller index back to i instead of hardcoding to 1 when the libretro overlay crash bug is fixed
2048                         //This is required for 2 player
2049
2050                         //GUNCON has 3 controls, Trigger,A,B which equal Circle,Start,Cross
2051
2052                         // Trigger
2053                         //The 1 is hardcoded instead of i to prevent the overlay mouse button libretro crash bug
2054                         if (input_state_cb(1, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT)){
2055                                 in_keystate[i] |= (1 << DKEY_CIRCLE);
2056                         }
2057
2058                         // A
2059                         if (input_state_cb(1, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT)){
2060                                 in_keystate[i] |= (1 << DKEY_START);
2061                         }
2062
2063                         // B
2064                         if (input_state_cb(1, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE)){
2065                                 in_keystate[i] |= (1 << DKEY_CROSS);
2066                         }
2067
2068                         //The 1 is hardcoded instead of i to prevent the overlay mouse button libretro crash bug
2069                         int gunx = input_state_cb(1, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X);
2070                         int guny = input_state_cb(1, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y);
2071
2072                         //This adjustment process gives the user the ability to manually align the mouse up better
2073                         //with where the shots are in the emulator.
2074
2075                         //Percentage distance of screen to adjust
2076                         int GunconAdjustX = 0;
2077                         int GunconAdjustY = 0;
2078
2079                         //Used when out by a percentage
2080                         float GunconAdjustRatioX = 1;
2081                         float GunconAdjustRatioY = 1;
2082
2083                         struct retro_variable var;
2084                         var.value = NULL;
2085                         var.key = "pcsx_rearmed_gunconadjustx";
2086                         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
2087                         {
2088                                 GunconAdjustX = atoi(var.value);
2089                         }
2090
2091                         var.value = NULL;
2092                         var.key = "pcsx_rearmed_gunconadjusty";
2093                         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
2094                         {
2095                                 GunconAdjustY = atoi(var.value);
2096                         }
2097
2098
2099                         var.value = NULL;
2100                         var.key = "pcsx_rearmed_gunconadjustratiox";
2101                         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
2102                         {
2103                                 GunconAdjustRatioX = atof(var.value);
2104                         }
2105
2106
2107                         var.value = NULL;
2108                         var.key = "pcsx_rearmed_gunconadjustratioy";
2109                         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
2110                         {
2111                                 GunconAdjustRatioY = atof(var.value);
2112                         }
2113
2114                         //Mouse range is -32767 -> 32767
2115                         //1% is about 655
2116                         //Use the left analog stick field to store the absolute coordinates
2117                         in_analog_left[0][0] = (gunx*GunconAdjustRatioX) + (GunconAdjustX * 655);
2118                         in_analog_left[0][1] = (guny*GunconAdjustRatioY) + (GunconAdjustY * 655);
2119
2120
2121                 }
2122                 if (in_type[i] == PSE_PAD_TYPE_NEGCON)
2123                 {
2124                         // Query digital inputs
2125                         //
2126                         // > Pad-Up
2127                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_UP))
2128                                 in_keystate[i] |= (1 << DKEY_UP);
2129                         // > Pad-Right
2130                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT))
2131                                 in_keystate[i] |= (1 << DKEY_RIGHT);
2132                         // > Pad-Down
2133                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN))
2134                                 in_keystate[i] |= (1 << DKEY_DOWN);
2135                         // > Pad-Left
2136                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT))
2137                                 in_keystate[i] |= (1 << DKEY_LEFT);
2138                         // > Start
2139                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
2140                                 in_keystate[i] |= (1 << DKEY_START);
2141                         // > neGcon A
2142                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_A))
2143                                 in_keystate[i] |= (1 << DKEY_CIRCLE);
2144                         // > neGcon B
2145                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_X))
2146                                 in_keystate[i] |= (1 << DKEY_TRIANGLE);
2147                         // > neGcon R shoulder (digital)
2148                         if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_R))
2149                                 in_keystate[i] |= (1 << DKEY_R1);
2150                         // Query analog inputs
2151                         //
2152                         // From studying 'libpcsxcore/plugins.c' and 'frontend/plugin.c':
2153                         // >> pad->leftJoyX  == in_analog_left[i][0]  == NeGcon II
2154                         // >> pad->leftJoyY  == in_analog_left[i][1]  == NeGcon L
2155                         // >> pad->rightJoyX == in_analog_right[i][0] == NeGcon twist
2156                         // >> pad->rightJoyY == in_analog_right[i][1] == NeGcon I
2157                         // So we just have to map in_analog_left/right to more
2158                         // appropriate inputs...
2159                         //
2160                         // > NeGcon twist
2161                         // >> Get raw analog stick value and account for deadzone
2162                         lsx = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X);
2163                         if (lsx > negcon_deadzone)
2164                                 lsx = lsx - negcon_deadzone;
2165                         else if (lsx < -negcon_deadzone)
2166                                 lsx = lsx + negcon_deadzone;
2167                         else
2168                                 lsx = 0;
2169                         // >> Convert to an 'amplitude' [-1.0,1.0] and adjust response
2170                         negcon_twist_amplitude = (float)lsx / (float)(NEGCON_RANGE - negcon_deadzone);
2171                         if (negcon_linearity == 2)
2172          {
2173                                 if (negcon_twist_amplitude < 0.0)
2174                                         negcon_twist_amplitude = -(negcon_twist_amplitude * negcon_twist_amplitude);
2175             else
2176                                         negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude;
2177                         }
2178          else if (negcon_linearity == 3)
2179                                 negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude * negcon_twist_amplitude;
2180                         // >> Convert to final 'in_analog' integer value [0,255]
2181                         in_analog_right[i][0] = MAX(MIN((int)(negcon_twist_amplitude * 128.0f) + 128, 255), 0);
2182                         // > NeGcon I + II
2183                         // >> Handle right analog stick vertical axis mapping...
2184                         //    - Up (-Y) == accelerate == neGcon I
2185                         //    - Down (+Y) == brake == neGcon II
2186                         negcon_i_rs = 0;
2187                         negcon_ii_rs = 0;
2188                         rsy = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y);
2189                         if (rsy >= 0){
2190                                 // Account for deadzone
2191                                 // (Note: have never encountered a gamepad with significant differences
2192                                 // in deadzone between left/right analog sticks, so use the regular 'twist'
2193                                 // deadzone here)
2194                                 if (rsy > negcon_deadzone)
2195                                         rsy = rsy - negcon_deadzone;
2196             else
2197                                         rsy = 0;
2198                                 // Convert to 'in_analog' integer value [0,255]
2199                                 negcon_ii_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2200                         } else {
2201                                 if (rsy < -negcon_deadzone)
2202                                         rsy = -1 * (rsy + negcon_deadzone);
2203             else
2204                                         rsy = 0;
2205                                 negcon_i_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
2206                         }
2207                         // >> NeGcon I
2208                         in_analog_right[i][1] = MAX(
2209                                 MAX(
2210                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_R2),
2211                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_B)
2212                                 ),
2213                                 negcon_i_rs
2214                         );
2215                         // >> NeGcon II
2216                         in_analog_left[i][0] = MAX(
2217                                 MAX(
2218                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L2),
2219                                         get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_Y)
2220                                 ),
2221                                 negcon_ii_rs
2222                         );
2223                         // > NeGcon L
2224                         in_analog_left[i][1] = get_analog_button(ret, input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L);
2225                 }
2226                 if (in_type[i] != PSE_PAD_TYPE_NEGCON && in_type[i] != PSE_PAD_TYPE_GUNCON)
2227                 {
2228                         // Query digital inputs
2229                         for (j = 0; j < RETRO_PSX_MAP_LEN; j++)
2230                                 if (ret & (1 << j))
2231                                         in_keystate[i] |= retro_psx_map[j];
2232
2233                         // Query analog inputs
2234                         if (in_type[i] == PSE_PAD_TYPE_ANALOGJOY || in_type[i] == PSE_PAD_TYPE_ANALOGPAD)
2235                         {
2236                                 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);
2237                                 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);
2238                                 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);
2239                                 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);
2240                         }
2241                 }
2242         }
2243
2244         stop = 0;
2245         psxCpu->Execute();
2246
2247         video_cb((vout_fb_dirty || !vout_can_dupe || !duping_enable) ? vout_buf_ptr : NULL,
2248                 vout_width, vout_height, vout_width * 2);
2249         vout_fb_dirty = 0;
2250
2251     set_vout_fb();
2252 }
2253
2254 static bool try_use_bios(const char *path)
2255 {
2256         FILE *f;
2257         long size;
2258         const char *name;
2259
2260         f = fopen(path, "rb");
2261         if (f == NULL)
2262                 return false;
2263
2264         fseek(f, 0, SEEK_END);
2265         size = ftell(f);
2266         fclose(f);
2267
2268         if (size != 512 * 1024)
2269                 return false;
2270
2271         name = strrchr(path, SLASH);
2272         if (name++ == NULL)
2273                 name = path;
2274         snprintf(Config.Bios, sizeof(Config.Bios), "%s", name);
2275         return true;
2276 }
2277
2278 #ifndef VITA
2279 #include <sys/types.h>
2280 #include <dirent.h>
2281
2282 static bool find_any_bios(const char *dirpath, char *path, size_t path_size)
2283 {
2284         DIR *dir;
2285         struct dirent *ent;
2286         bool ret = false;
2287
2288         dir = opendir(dirpath);
2289         if (dir == NULL)
2290                 return false;
2291
2292         while ((ent = readdir(dir))) {
2293                 if ((strncasecmp(ent->d_name, "scph", 4) != 0) && (strncasecmp(ent->d_name, "psx", 3) != 0))
2294                         continue;
2295
2296                 snprintf(path, path_size, "%s%c%s", dirpath, SLASH, ent->d_name);
2297                 ret = try_use_bios(path);
2298                 if (ret)
2299                         break;
2300         }
2301         closedir(dir);
2302         return ret;
2303 }
2304 #else
2305 #define find_any_bios(...) false
2306 #endif
2307
2308 static void check_system_specs(void)
2309 {
2310    unsigned level = 6;
2311    environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
2312 }
2313
2314 static int init_memcards(void)
2315 {
2316         int ret = 0;
2317         const char *dir;
2318         struct retro_variable var = { .key="pcsx_rearmed_memcard2", .value=NULL };
2319         static const char CARD2_FILE[] = "pcsx-card2.mcd";
2320
2321         // Memcard2 will be handled and is re-enabled if needed using core
2322         // operations.
2323         // Memcard1 is handled by libretro, doing this will set core to
2324         // skip file io operations for memcard1 like SaveMcd
2325         snprintf(Config.Mcd1, sizeof(Config.Mcd1), "none");
2326         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "none");
2327         init_memcard(Mcd1Data);
2328         // Memcard 2 is managed by the emulator on the filesystem,
2329         // There is no need to initialize Mcd2Data like Mcd1Data.
2330
2331         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2332                 SysPrintf("Memcard 2: %s\n", var.value);
2333                 if (memcmp(var.value, "enabled", 7) == 0) {
2334                         if (environ_cb(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir) {
2335                                 if (strlen(dir) + strlen(CARD2_FILE) + 2 > sizeof(Config.Mcd2)) {
2336                                         SysPrintf("Path '%s' is too long. Cannot use memcard 2. Use a shorter path.\n", dir);
2337                                         ret = -1;
2338                                 } else {
2339                                         McdDisable[1] = 0;
2340                                         snprintf(Config.Mcd2, sizeof(Config.Mcd2), "%s/%s", dir, CARD2_FILE);
2341                                         SysPrintf("Use memcard 2: %s\n", Config.Mcd2);
2342                                 }
2343                         } else {
2344                                 SysPrintf("Could not get save directory! Could not create memcard 2.");
2345                                 ret = -1;
2346                         }
2347                 }
2348         }
2349         return ret;
2350 }
2351
2352 static void loadPSXBios(void)
2353 {
2354         const char *dir;
2355         char path[PATH_MAX];
2356         unsigned useHLE = 0;
2357
2358         const char *bios[] = {
2359                 "PSXONPSP660", "psxonpsp660",
2360                 "SCPH101", "scph101",
2361                 "SCPH5501", "scph5501",
2362                 "SCPH7001", "scph7001",
2363                 "SCPH1001", "scph1001"
2364         };
2365
2366         struct retro_variable var = {
2367                 .key = "pcsx_rearmed_bios",
2368                 .value = NULL
2369         };
2370
2371         found_bios = 0;
2372
2373         if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
2374                 if (!strcmp(var.value, "HLE"))
2375                         useHLE = 1;
2376         }
2377
2378         if (!useHLE)
2379         {
2380                 if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
2381                 {
2382                         unsigned i;
2383                         snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s", dir);
2384
2385                         for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) {
2386                                 snprintf(path, sizeof(path), "%s%c%s.bin", dir, SLASH, bios[i]);
2387                                 found_bios = try_use_bios(path);
2388                                 if (found_bios)
2389                                         break;
2390                         }
2391
2392                         if (!found_bios)
2393                                 found_bios = find_any_bios(dir, path, sizeof(path));
2394                 }
2395                 if (found_bios) {
2396                         SysPrintf("found BIOS file: %s\n", Config.Bios);
2397                 }
2398         }
2399
2400         if (useHLE || !found_bios)
2401         {
2402                 SysPrintf("no BIOS files found.\n");
2403                 struct retro_message msg =
2404                 {
2405                         "No PlayStation BIOS file found - add for better compatibility",
2406                         180
2407                 };
2408                 environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, (void*)&msg);
2409         }
2410 }
2411
2412 void retro_init(void)
2413 {
2414         struct retro_rumble_interface rumble;
2415         int ret;
2416
2417 #ifdef __MACH__
2418         // magic sauce to make the dynarec work on iOS
2419         syscall(SYS_ptrace, 0 /*PTRACE_TRACEME*/, 0, 0, 0);
2420 #endif
2421
2422 #ifdef _3DS
2423    psxMapHook = pl_3ds_mmap;
2424    psxUnmapHook = pl_3ds_munmap;
2425 #endif
2426 #ifdef VITA
2427    if(init_vita_mmap()<0)
2428       abort();
2429    psxMapHook = pl_vita_mmap;
2430    psxUnmapHook = pl_vita_munmap;
2431 #endif
2432         ret = emu_core_preinit();
2433 #ifdef _3DS
2434    /* emu_core_preinit sets the cpu to dynarec */
2435    if(!__ctr_svchax)
2436       Config.Cpu = CPU_INTERPRETER;
2437 #endif
2438         ret |= init_memcards();
2439
2440         ret |= emu_core_init();
2441         if (ret != 0) {
2442                 SysPrintf("PCSX init failed.\n");
2443                 exit(1);
2444         }
2445
2446 #ifdef _3DS
2447    vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80);
2448 #elif defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L) && !defined(VITA) && !defined(__SWITCH__)
2449         posix_memalign(&vout_buf, 16, VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2450 #else
2451         vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
2452 #endif
2453
2454         vout_buf_ptr = vout_buf;
2455
2456         loadPSXBios();
2457
2458         environ_cb(RETRO_ENVIRONMENT_GET_CAN_DUPE, &vout_can_dupe);
2459         environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control);
2460
2461         rumble_cb = NULL;
2462         if (environ_cb(RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE, &rumble))
2463                 rumble_cb = rumble.set_rumble_state;
2464
2465         /* Set how much slower PSX CPU runs * 100 (so that 200 is 2 times)
2466          * we have to do this because cache misses and some IO penalties
2467          * are not emulated. Warning: changing this may break compatibility. */
2468         cycle_multiplier = 175;
2469 #ifdef HAVE_PRE_ARMV7
2470         cycle_multiplier = 200;
2471 #endif
2472         pl_rearmed_cbs.gpu_peops.iUseDither = 1;
2473         pl_rearmed_cbs.gpu_peops.dwActFixes = GPU_PEOPS_OLD_FRAME_SKIP;
2474         spu_config.iUseFixedUpdates = 1;
2475
2476         SaveFuncs.open = save_open;
2477         SaveFuncs.read = save_read;
2478         SaveFuncs.write = save_write;
2479         SaveFuncs.seek = save_seek;
2480         SaveFuncs.close = save_close;
2481
2482    if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL))
2483       libretro_supports_bitmasks = true;
2484
2485         update_variables(false);
2486         check_system_specs();
2487 }
2488
2489 void retro_deinit(void)
2490 {
2491         ClosePlugins();
2492         SysClose();
2493 #ifdef _3DS
2494    linearFree(vout_buf);
2495 #else
2496         free(vout_buf);
2497 #endif
2498         vout_buf = NULL;
2499
2500 #ifdef VITA
2501   deinit_vita_mmap();
2502 #endif
2503    libretro_supports_bitmasks = false;
2504 }
2505
2506 #ifdef VITA
2507 #include <psp2/kernel/threadmgr.h>
2508 int usleep (unsigned long us)
2509 {
2510    sceKernelDelayThread(us);
2511 }
2512 #endif
2513
2514 void SysPrintf(const char *fmt, ...) {
2515         va_list list;
2516         char msg[512];
2517
2518         va_start(list, fmt);
2519         vsprintf(msg, fmt, list);
2520         va_end(list);
2521
2522         if (log_cb)
2523                 log_cb(RETRO_LOG_INFO, "%s", msg);
2524 }