frontend/libretro.c

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