frontend/libretro.c

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