source/src/vm/scsi_cdrom.cpp

   1 /*
   2         Skelton for retropc emulator
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2016.03.06-
   6
   7         [ SCSI CD-ROM drive ]
   8 */
   9
  10 #include "scsi_cdrom.h"
  11 #include "../fifo.h"
  12
  13 #include <algorithm>
  14 #include <cctype>
  15
  16 #define CDDA_OFF        0
  17 #define CDDA_PLAYING    1
  18 #define CDDA_PAUSED     2
  19
  20 #define _SCSI_DEBUG_LOG
  21 #define _CDROM_DEBUG_LOG
  22
  23 // 0-99 is reserved for SCSI_DEV class
  24 #define EVENT_CDDA                                              100
  25 #define EVENT_CDDA_DELAY_PLAY                   101
  26 #define EVENT_CDROM_SEEK_SCSI                   102
  27 #define EVENT_CDROM_DELAY_INTERRUPT_ON  103
  28 #define EVENT_CDROM_DELAY_INTERRUPT_OFF 104
  29 #define EVENT_CDDA_DELAY_STOP                   105
  30
  31 void SCSI_CDROM::initialize()
  32 {
  33         SCSI_DEV::initialize();
  34         fio_img = new FILEIO();
  35
  36         if(44100 % emu->get_sound_rate() == 0) {
  37                 mix_loop_num = 44100 / emu->get_sound_rate();
  38         } else {
  39                 mix_loop_num = 0;
  40         }
  41         event_cdda = -1;
  42         event_cdda_delay_play = -1;
  43         event_delay_interrupt = -1;
  44         cdda_status = CDDA_OFF;
  45         is_cue = false;
  46         current_track = 0;
  47         read_sectors = 0;
  48         for(int i = 0; i < 99; i++) {
  49                 memset(track_data_path[i], 0x00, _MAX_PATH * sizeof(_TCHAR));
  50         }
  51 }
  52
  53 void SCSI_CDROM::release()
  54 {
  55         if(fio_img->IsOpened()) {
  56                 fio_img->Fclose();
  57         }
  58         delete fio_img;
  59         SCSI_DEV::release();
  60 }
  61
  62 void SCSI_CDROM::reset()
  63 {
  64         touch_sound();
  65         if(event_delay_interrupt != -1) cancel_event(this, event_delay_interrupt);
  66         if(event_cdda_delay_play != -1) cancel_event(this, event_cdda_delay_play);
  67         if(event_cdda != -1) cancel_event(this, event_cdda);
  68         event_cdda = -1;
  69         event_cdda_delay_play = -1;
  70         event_delay_interrupt = -1;
  71         SCSI_DEV::reset();
  72         read_mode = false;
  73         set_cdda_status(CDDA_OFF);
  74         read_sectors = 0;
  75         // Q: Does not seek to track 0? 20181118 K.O
  76         //current_track = 0;
  77
  78 }
  79
  80 void SCSI_CDROM::write_signal(int id, uint32_t data, uint32_t mask)
  81 {
  82         bool _b = ((data & mask) != 0);
  83         switch(id) {
  84         case SIG_SCSI_CDROM_CDDA_STOP:
  85                 if(cdda_status != CDDA_OFF) {
  86                         if(_b) set_cdda_status(CDDA_OFF);
  87                 }
  88                 break;
  89         case SIG_SCSI_CDROM_CDDA_PLAY:
  90                 if(cdda_status != CDDA_PLAYING) {
  91                         if(_b) set_cdda_status(CDDA_PLAYING);
  92                 }
  93                 break;
  94         case SIG_SCSI_CDROM_CDDA_PAUSE:
  95                 if(cdda_status != CDDA_PAUSED) {
  96                         if(_b) set_cdda_status(CDDA_PAUSED);
  97                 }
  98                 break;
  99         default:
 100                 SCSI_DEV::write_signal(id, data, mask);
 101                 break;
 102         }
 103 }
 104
 105 uint32_t SCSI_CDROM::read_signal(int id)
 106 {
 107         switch(id) {
 108         case SIG_SCSI_CDROM_PLAYING:
 109                 return (cdda_status == CDDA_PLAYING && cdda_interrupt) ? 0xffffffff : 0;
 110
 111         case SIG_SCSI_CDROM_SAMPLE_L:
 112                 return (uint32_t)abs(cdda_sample_l);
 113
 114         case SIG_SCSI_CDROM_SAMPLE_R:
 115                 return (uint32_t)abs(cdda_sample_r);
 116         }
 117         return SCSI_DEV::read_signal(id);
 118 }
 119
 120 void SCSI_CDROM::event_callback(int event_id, int err)
 121 {
 122         switch (event_id) {
 123         case EVENT_CDROM_DELAY_INTERRUPT_ON:
 124                 write_signals(&outputs_done, 0xffffffff);
 125                 event_delay_interrupt = -1;
 126                 break;
 127         case EVENT_CDROM_DELAY_INTERRUPT_OFF:
 128                 write_signals(&outputs_done, 0x00000000);
 129                 event_delay_interrupt = -1;
 130                 break;
 131         case EVENT_CDDA_DELAY_PLAY:
 132                 if(cdda_status != CDDA_PLAYING) {
 133                         set_cdda_status(CDDA_PLAYING);
 134                 }
 135                 event_cdda_delay_play = -1;
 136                 break;
 137         case EVENT_CDROM_SEEK_SCSI:
 138                 seek_time = 10.0;
 139                 event_cdda_delay_play = -1;
 140                 SCSI_DEV::start_command();
 141                 break;
 142         case EVENT_CDDA:
 143                 if(event_cdda_delay_play > -1) return; // WAIT for SEEK COMPLETED
 144                 // read 16bit 2ch samples in the cd-da buffer, called 44100 times/sec
 145
 146                 cdda_sample_l = (int)(int16_t)(cdda_buffer[cdda_buffer_ptr + 0] + cdda_buffer[cdda_buffer_ptr + 1] * 0x100);
 147                 cdda_sample_r = (int)(int16_t)(cdda_buffer[cdda_buffer_ptr + 2] + cdda_buffer[cdda_buffer_ptr + 3] * 0x100);
 148                 // ToDo: CLEAR IRQ Line (for PCE)
 149                 if((cdda_buffer_ptr += 4) % 2352 == 0) {
 150                         // one frame finished
 151                         if(++cdda_playing_frame == cdda_end_frame) {
 152                                 // reached to end frame
 153                                 #ifdef _CDROM_DEBUG_LOG
 154                                 this->out_debug_log(_T("Reaches to the end of track.(FRAME %d). START_FRAME=%d END_FRAME=%d REPEAT=%s INTERRUPT=%s\n"),
 155                                                                         cdda_playing_frame, cdda_start_frame, cdda_end_frame,
 156                                                                         (cdda_repeat) ? _T("YES") : _T("NO"), (cdda_interrupt) ? _T("YES") : _T("NO"));
 157                                 #endif
 158                                 if(cdda_repeat) {
 159                                         // reload buffer
 160                                         if(is_cue) {
 161                                                 fio_img->Fclose();
 162                                                 //current_track = 0;
 163                                                 //int trk = get_track(cdda_start_frame);
 164                                                 int trk = current_track;
 165                                                 fio_img->Fseek((cdda_start_frame - toc_table[trk].lba_offset) * 2352, FILEIO_SEEK_SET);
 166                                         } else {
 167                                                 fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 168                                         }
 169                                         read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t) , array_length(cdda_buffer) / 2352);
 170                                         cdda_buffer_ptr = 0;
 171                                         cdda_playing_frame = cdda_start_frame;
 172                                         access = true;
 173                                 } else {
 174                                         // Stop
 175                                         //if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 176                                         set_cdda_status(CDDA_OFF);
 177                                         //register_event(this, EVENT_CDDA_DELAY_STOP, 1000.0, false, &event_cdda_delay_play);
 178                                 }
 179                         } else if((cdda_buffer_ptr % 2352) == 0) {
 180                                 // refresh buffer
 181                                 read_sectors--;
 182                                 if(read_sectors <= 0) {
 183                                         read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 184                                         cdda_buffer_ptr = 0;
 185                                         access = true;
 186                                 } else {
 187                                 }
 188                         }
 189                 }
 190                 break;
 191         case EVENT_CDDA_DELAY_STOP:
 192                 if(cdda_interrupt) {
 193                         write_signals(&outputs_done, 0xffffffff);
 194                 }
 195                 set_cdda_status(CDDA_OFF);
 196                 event_cdda_delay_play = -1;
 197                 break;
 198         default:
 199                 SCSI_DEV::event_callback(event_id, err);
 200                 break;
 201         }
 202 }
 203
 204 void SCSI_CDROM::set_cdda_status(uint8_t status)
 205 {
 206         if(status == CDDA_PLAYING) {
 207                 if(mix_loop_num == 0) {
 208                         if(event_cdda == -1) {
 209                                 register_event(this, EVENT_CDDA, 1000000.0 / 44100.0, true, &event_cdda);
 210                         }
 211                 }
 212                 if(cdda_status != CDDA_PLAYING) {
 213                         //// Notify to release bus.
 214                         write_signals(&outputs_done, 0x00000000);
 215                         if(cdda_status == CDDA_OFF) {
 216                                 //get_track_by_track_num(current_track); // Re-Play
 217                                 //memset(cdda_buffer, 0x00, sizeof(cdda_buffer));
 218                                 cdda_playing_frame = cdda_start_frame;
 219                                 get_track(cdda_playing_frame);
 220                                 cdda_buffer_ptr = 0;
 221                         } else if(cdda_status == CDDA_PAUSED) {
 222                                 // Unpause
 223                                 access = true;
 224                         }
 225                         touch_sound();
 226                         set_realtime_render(this, true);
 227                         #ifdef _CDROM_DEBUG_LOG
 228                                 this->out_debug_log(_T("Play CDDA from %s.\n"), (cdda_status == CDDA_PAUSED) ? _T("PAUSED") : _T("STOPPED"));
 229                         #endif
 230                 }
 231         } else {
 232                 if(event_cdda != -1) {
 233                         cancel_event(this, event_cdda);
 234                         event_cdda = -1;
 235                 }
 236                 if(cdda_status == CDDA_PLAYING) {
 237                         // Notify to release bus.
 238                         write_signals(&outputs_done, 0x00000000);
 239                         //if(event_delay_interrupt >= 0) cancel_event(this, event_delay_interrupt);
 240                         //register_event(this, EVENT_CDROM_DELAY_INTERRUPT_OFF, 1.0e6 / (44100.0 * 2352), false, &event_delay_interrupt);
 241                         if(status == CDDA_OFF) {
 242                                 memset(cdda_buffer, 0x00, sizeof(cdda_buffer));
 243                                 cdda_buffer_ptr = 0;
 244                                 read_sectors = 0;
 245                                 //if(is_cue) {
 246                                 //      if(fio_img->IsOpened()) fio_img->Fclose();
 247                                 //}
 248                                 //current_track = 0;
 249                         }
 250                         touch_sound();
 251                         set_realtime_render(this, false);
 252                         #ifdef _CDROM_DEBUG_LOG
 253                                 this->out_debug_log(_T("%s playing CDDA.\n"), (status == CDDA_PAUSED) ? _T("PAUSE") : _T("STOP"));
 254                         #endif
 255                 }
 256         }
 257         cdda_status = status;
 258 }
 259
 260 void SCSI_CDROM::reset_device()
 261 {
 262         set_cdda_status(CDDA_OFF);
 263         SCSI_DEV::reset_device();
 264 }
 265
 266 bool SCSI_CDROM::is_device_ready()
 267 {
 268         return mounted();
 269 }
 270
 271 int SCSI_CDROM::get_command_length(int value)
 272 {
 273         switch(value) {
 274         case 0xd8:
 275         case 0xd9:
 276         case 0xda:
 277         case 0xdd:
 278         case 0xde:
 279                 return 10;
 280         }
 281         return SCSI_DEV::get_command_length(value);
 282 }
 283
 284 void SCSI_CDROM::get_track_by_track_num(int track)
 285 {
 286         if((track <= 0) || (track >= track_num)) {
 287                 if(is_cue) {
 288                         if(fio_img->IsOpened()) fio_img->Fclose();
 289                 }
 290                 //if(track <= 0) current_track = 0;
 291                 //if(track >= track_num)current_track = track_num;
 292                 current_track = 0;
 293                 return;
 294         }
 295         if(is_cue) {
 296                 // ToDo: Apply audio with some codecs.
 297                 if((current_track != track) || !(fio_img->IsOpened())){
 298                         if(fio_img->IsOpened()) {
 299                                 fio_img->Fclose();
 300                         }
 301                 #ifdef _CDROM_DEBUG_LOG
 302                         this->out_debug_log(_T("LOAD TRK #%02d from %s\n"), track, track_data_path[track - 1]);
 303                 #endif
 304
 305                         if((track > 0) && (track < 100) && (track < track_num)) {
 306                                 if((strlen(track_data_path[track - 1]) <= 0) ||
 307                                    !(fio_img->Fopen(track_data_path[track - 1], FILEIO_READ_BINARY))) {
 308                                         track = 0;
 309                                 }
 310                         } else {
 311                                 track = 0;
 312                         }
 313                 }
 314         }
 315         current_track = track;
 316 }
 317
 318 // Detect only track num.
 319 int SCSI_CDROM::get_track_noop(uint32_t lba)
 320 {
 321         int track = 0;
 322         for(int i = 0; i < track_num; i++) {
 323                 if(lba >= toc_table[i].index0) {
 324                         track = i;
 325                 } else {
 326                         break;
 327                 }
 328         }
 329         return track;
 330 }
 331
 332 int SCSI_CDROM::get_track(uint32_t lba)
 333 {
 334         int track = 0;
 335         track = get_track_noop(lba);
 336         if(is_cue) {
 337                 get_track_by_track_num(track);
 338         } else {
 339                 current_track = track;
 340         }
 341         return track;
 342 }
 343
 344 double SCSI_CDROM::get_seek_time(uint32_t lba)
 345 {
 346         if(fio_img->IsOpened()) {
 347                 uint32_t cur_position = (uint32_t)fio_img->Ftell();
 348                 int distance;
 349                 if(is_cue) {
 350                         int track = 0;
 351                         for(int i = 0; i < track_num; i++) {
 352                                 if(lba >= toc_table[i].index0) {
 353                                         track = i;
 354                                 } else {
 355                                         break;
 356                                 }
 357                         }
 358                         distance = abs((int)(lba * physical_block_size()) - (int)(cur_position + toc_table[current_track].lba_offset * physical_block_size()));
 359                         if(track != current_track) {
 360                                 current_track = get_track(lba);
 361                         }
 362                 } else {
 363                         distance = abs((int)(lba * physical_block_size()) - (int)cur_position);
 364                 }
 365                 double ratio = ((double)distance / 333000.0) / physical_block_size(); // 333000: sectors in media
 366                 return max(10, (int)(400000 * 2 * ratio));
 367         } else {
 368                 return 400000; // 400msec
 369         }
 370 }
 371
 372 uint32_t SCSI_CDROM::lba_to_msf(uint32_t lba)
 373 {
 374         uint8_t m = lba / (60 * 75);
 375         lba -= m * (60 * 75);
 376         uint8_t s = lba / 75;
 377         uint8_t f = lba % 75;
 378
 379         return ((m / 10) << 20) | ((m % 10) << 16) | ((s / 10) << 12) | ((s % 10) << 8) | ((f / 10) << 4) | ((f % 10) << 0);
 380 }
 381
 382 uint32_t SCSI_CDROM::lba_to_msf_alt(uint32_t lba)
 383 {
 384         uint32_t ret = 0;
 385         ret |= ((lba / (60 * 75)) & 0xff) << 16;
 386         ret |= (((lba / 75) % 60) & 0xff) <<  8;
 387         ret |= ((lba % 75)        & 0xff) <<  0;
 388         return ret;
 389 }
 390
 391 void SCSI_CDROM::start_command()
 392 {
 393         touch_sound();
 394         #ifdef _SCSI_DEBUG_LOG
 395 //      this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: #%02x %02x %02x %02x %02x %02x\n"), scsi_id, command[0], command[1], command[2], command[3], command[4], command[5]);
 396         #endif
 397         switch(command[0]) {
 398         case SCSI_CMD_READ6:
 399                 //seek_time = 10;//get_seek_time((command[1] & 0x1f) * 0x10000 + command[2] * 0x100 + command[3]);
 400                 seek_time = get_seek_time((command[1] & 0x1f) * 0x10000 + command[2] * 0x100 + command[3]);
 401                 set_cdda_status(CDDA_OFF);
 402                 if(seek_time > 10.0) {
 403                         if(event_cdda_delay_play >= 0) {
 404                                 cancel_event(this, event_cdda_delay_play);
 405                                 event_cdda_delay_play = -1;
 406                         }
 407                         register_event(this, EVENT_CDROM_SEEK_SCSI, seek_time - 10.0, false, &event_cdda_delay_play);
 408                         return;
 409                 } else {
 410                         seek_time = 10.0;
 411                 }
 412                 break;
 413         case SCSI_CMD_READ10:
 414         case SCSI_CMD_READ12:
 415                 seek_time = get_seek_time((command[1] & 0x1f) * 0x10000 + command[2] * 0x100 + command[3]);
 416                 set_cdda_status(CDDA_OFF);
 417                 if(seek_time > 10.0) {
 418                         if(event_cdda_delay_play >= 0) {
 419                                 cancel_event(this, event_cdda_delay_play);
 420                                 event_cdda_delay_play = -1;
 421                         }
 422                         register_event(this, EVENT_CDROM_SEEK_SCSI, seek_time - 10.0, false, &event_cdda_delay_play);
 423                         return;
 424                 } else {
 425                         seek_time = 10.0;
 426                 }
 427                 break;
 428
 429         case SCSI_CMD_MODE_SEL6:
 430                 #ifdef _SCSI_DEBUG_LOG
 431                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Read Mode Select 6-byte\n"), scsi_id);
 432                 #endif
 433                 // start position
 434 //              position = (command[1] & 0x1f) * 0x10000 + command[2] * 0x100 + command[3];
 435 //              position *= physical_block_size();
 436                 position = 0;
 437                 // transfer length
 438 //              remain = command[4];// * logical_block_size();
 439                 remain = 11;
 440                 if(remain != 0) {
 441                         // clear data buffer
 442                         buffer->clear();
 443                         // change to data in phase
 444                         set_phase_delay(SCSI_PHASE_DATA_OUT, seek_time);
 445                 } else {
 446                         // transfer length is zero, change to status phase
 447                         set_dat(SCSI_STATUS_GOOD);
 448                         set_sense_code(SCSI_SENSE_NOSENSE);
 449                         set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 450                 }
 451                 return;
 452
 453         case 0xd8:
 454                 #ifdef _SCSI_DEBUG_LOG
 455                 this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Set Audio Playback Start Position CMD=%02x ARG=%02x %02x %02x %02x\n"), scsi_id, command[9], command[2], command[3], command[4], command[5]);
 456                 #endif
 457                 if(is_device_ready()) {
 458                         if(command[2] == 0 && command[3] == 0 && command[4] == 0) {
 459                                 // stop cd-da if all params are zero
 460                                 cdda_start_frame = 0;
 461                                 cdda_end_frame = toc_table[track_num].index0; // end of disc
 462                                 double seek_time = get_seek_time(cdda_end_frame);
 463                                 if(is_cue) {
 464                                         get_track_by_track_num(track_num);
 465                                 }
 466                                 //set_cdda_status(CDDA_OFF);
 467                                 if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 468                                 register_event(this, EVENT_CDDA_DELAY_STOP, (seek_time > 10.0) ? seek_time : 10.0, false, &event_cdda_delay_play);
 469                         } else {
 470                                 uint32_t seek_offset = 0;
 471                                 switch(command[9] & 0xc0) {
 472                                 case 0x00:
 473                                         cdda_start_frame = (command[2] << 16) | (command[3] << 8) | command[4];
 474                                         break;
 475                                 case 0x40:
 476                                         {
 477                                                 uint8_t m = FROM_BCD(command[2]);
 478                                                 uint8_t s = FROM_BCD(command[3]);
 479                                                 uint8_t f = FROM_BCD(command[4]);
 480                                                 cdda_start_frame = f + 75 * (s + m * 60);
 481
 482                                                 // PCE tries to be clever here and set (start of track + track pregap size) to skip the pregap
 483                                                 // (I guess it wants the TOC to have the real start sector for data tracks and the start of the pregap for audio?)
 484                                                 int track = get_track(cdda_start_frame);
 485                                                 if(cdda_start_frame >= toc_table[track].pregap) {
 486                                                         cdda_start_frame -= toc_table[track].pregap;
 487                                                 }
 488                                                 if(cdda_start_frame < toc_table[track].index0) {
 489                                                         cdda_start_frame = toc_table[track].index0; // don't play pregap
 490                                                 } else if(cdda_start_frame > max_logical_block) {
 491                                                         cdda_start_frame = 0;
 492                                                 }
 493                                         }
 494                                         break;
 495                                 case 0x80:
 496                                         {
 497                                                 int8_t track = FROM_BCD(command[2] - 1);
 498                                                 cdda_start_frame = toc_table[track].index1;
 499                                                 if(cdda_start_frame >= toc_table[track].pregap) {
 500                                                         cdda_start_frame -= toc_table[track].pregap;
 501                                                 }
 502                                         }
 503                                         break;
 504                                 default:
 505                                         cdda_start_frame = 0;
 506                                         break;
 507                                 }
 508 //                              if(cdda_status == CDDA_PAUSED) {
 509 //                                      cdda_end_frame = toc_table[track_num].index0; // end of disc
 510 //                                      set_cdda_status(CDDA_OFF);
 511 //                              } else
 512                                 double delay_time = get_seek_time(cdda_start_frame);
 513                                 if((command[1] & 3) != 0) {
 514                                         if((is_cue) && (current_track != track_num)){
 515                                                 get_track_by_track_num(track_num);
 516                                         }
 517                                         cdda_end_frame = toc_table[track_num].index0; // end of disc
 518                                         double seek_time = get_seek_time(cdda_start_frame);
 519                                         if(event_cdda_delay_play >= 0) {
 520                                                 cancel_event(this, event_cdda_delay_play);
 521                                                 event_cdda_delay_play = -1;
 522                                         }
 523                                         //set_cdda_status(CDDA_PLAYING);
 524                                         register_event(this, EVENT_CDROM_SEEK_SCSI, seek_time, false, &event_cdda_delay_play);
 525                                 } else {
 526                                         uint32_t _sframe = cdda_start_frame;
 527                                         //cdda_end_frame = toc_table[get_track(_sframe) + 1].index1; // end of this track
 528                                         //cdda_end_frame = toc_table[get_track(_sframe)].index1; // end of this track
 529                                         set_cdda_status(CDDA_PAUSED);
 530                                 }
 531                                 cdda_repeat = false;
 532                                 cdda_interrupt = ((command[1] & 3) == 2);
 533
 534                                 // read buffer
 535                                 //double delay_time = 10.0;
 536 #if 1
 537                                 if(is_cue) {
 538                                         //if(cdda_start_frame > 150) cdda_start_frame = cdda_start_frame - 150;
 539                                         fio_img->Fseek((cdda_start_frame - toc_table[current_track].index0) * 2352, FILEIO_SEEK_SET);
 540                                 } else {
 541                                         fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 542                                 }
 543 #endif
 544                                 read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 545                                 cdda_buffer_ptr = 0;
 546                                 cdda_playing_frame = cdda_start_frame;
 547                                 access = true;
 548
 549                                 // change to status phase
 550                                 set_dat(SCSI_STATUS_GOOD);
 551                                 // From Mame 0.203
 552                                 if(event_delay_interrupt >= 0) cancel_event(this, event_delay_interrupt);
 553                                 register_event(this, EVENT_CDROM_DELAY_INTERRUPT_ON, delay_time, false, &event_delay_interrupt);
 554                                 //set_phase_delay(SCSI_PHASE_STATUS, delay_time + 10.0);
 555                                 //write_signals(&outputs_done, 0xffffffff);
 556                                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 557                                 return;
 558                         }
 559                 }
 560                 // change to status phase
 561                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 562                 // From Mame 0.203
 563                 //if(is_device_ready()) write_signals(&outputs_done, 0xffffffff);
 564                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 565
 566                 return;
 567
 568         case 0xd9:
 569                 #ifdef _SCSI_DEBUG_LOG
 570                 this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Set Audio Playback End Position CMD=%02x ARG=%02x %02x %02x %02x\n"), scsi_id, command[9], command[2], command[3], command[4], command[5]);
 571                 #endif
 572                 if(is_device_ready()) {
 573
 574                         switch(command[9] & 0xc0) {
 575                         case 0x00:
 576                                 cdda_end_frame = (command[3] << 16) | (command[4] << 8) | command[5];
 577                                 break;
 578                         case 0x40:
 579                                 {
 580                                         uint8_t m = FROM_BCD(command[2]);
 581                                         uint8_t s = FROM_BCD(command[3]);
 582                                         uint8_t f = FROM_BCD(command[4]);
 583                                         cdda_end_frame = f + 75 * (s + m * 60);
 584
 585                                         // PCE tries to be clever here and set (start of track + track pregap size) to skip the pregap
 586                                         // (I guess it wants the TOC to have the real start sector for data tracks and the start of the pregap for audio?)
 587
 588 //                                      int track = get_track(cdda_start_frame);
 589                                         int track = current_track;
 590                                         cdda_playing_frame = cdda_start_frame;
 591 //                                      if(is_cue) {
 592 //                                              fio_img->Fseek((cdda_start_frame - toc_table[current_track].lba_offset) * 2352, FILEIO_SEEK_SET);
 593 //                                      } else {
 594 //                                              fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 595 //                                      }
 596                                         //read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 597
 598                                         if(cdda_end_frame > toc_table[track + 1].index1 && (cdda_end_frame - toc_table[track].pregap) <= toc_table[track + 1].index1) {
 599                                                 cdda_end_frame = toc_table[track + 1].index1;
 600                                         }
 601                                         cdda_buffer_ptr = 0;
 602                                 }
 603                                 break;
 604                         case 0x80:
 605                                 {
 606                                         int _track = FROM_BCD(command[2]) - 1;
 607                                         if(_track >= 0) {
 608                                                 cdda_end_frame = toc_table[_track].index0;
 609                                                 if(is_cue) {
 610                                                         if(current_track != _track) {
 611                                                                 get_track_by_track_num(_track);
 612                                                                 cdda_start_frame = toc_table[_track].index0;
 613                                                                 cdda_end_frame = toc_table[_track].lba_size + toc_table[_track].lba_offset;
 614                                                                 cdda_playing_frame = cdda_start_frame;
 615                                                                 if(is_cue) {
 616                                                                         fio_img->Fseek((cdda_start_frame - toc_table[current_track].lba_offset) * 2352, FILEIO_SEEK_SET);
 617                                                                 } else {
 618                                                                         fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 619                                                                 }
 620                                                                 read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 621                                                                 cdda_buffer_ptr = 0;
 622                                                         }
 623                                                 }
 624                                         }
 625                                 }
 626                                 break;
 627                         default:
 628                                 break; // ToDo
 629                         }
 630                         if((command[1] & 3) != 0) {
 631                                 cdda_repeat = ((command[1] & 3) == 1);
 632                                 cdda_interrupt = ((command[1] & 3) == 2);
 633
 634                                 if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 635                                 register_event(this, EVENT_CDDA_DELAY_PLAY, 10.0, false, &event_cdda_delay_play);
 636                                 //set_cdda_status(CDDA_PLAYING);
 637                         } else {
 638                                 set_cdda_status(CDDA_OFF);
 639                                 cdda_start_frame = toc_table[track_num].index0;;
 640                                 cdda_end_frame = toc_table[track_num].index1; // end of disc
 641                                 double seek_time = get_seek_time(cdda_start_frame);
 642                                 //double seek_time = 10.0;
 643                                 get_track_by_track_num(track_num); // END OF DISC
 644
 645                                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 646 //                              if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 647 //                              register_event(this, EVENT_CDDA_DELAY_STOP, (seek_time > 10.0) ? seek_time : 10.0, false, &event_cdda_delay_play);
 648                                 if(is_device_ready()) {
 649                                         if(event_delay_interrupt >= 0) {
 650                                                 cancel_event(this, event_delay_interrupt);
 651                                                 event_delay_interrupt = -1;
 652                                         }
 653                                         register_event(this, EVENT_CDROM_DELAY_INTERRUPT_ON, (seek_time > 10.0) ? (seek_time + 10.0) : (10.0 + 10.0), false, &event_delay_interrupt);
 654                                 }
 655                                 set_phase_delay(SCSI_PHASE_STATUS, (seek_time > 10.0) ? (seek_time + 10.0) : (10.0 + 10.0));
 656                                 return;
 657                         }
 658                 }
 659                 // change to status phase
 660                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 661                 if(is_device_ready()) {
 662                         write_signals(&outputs_done, 0xffffffff);
 663                         //if(event_delay_interrupt >= 0) cancel_event(this, event_delay_interrupt);
 664                         //register_event(this, EVENT_CDROM_DELAY_INTERRUPT_ON, 10.0, false, &event_delay_interrupt);
 665
 666                 }
 667                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 668                 return;
 669
 670         case 0xda:
 671                 #ifdef _SCSI_DEBUG_LOG
 672                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Pause\n"), scsi_id);
 673                 #endif
 674                 if(is_device_ready()) {
 675                         if(cdda_status == CDDA_PLAYING) {
 676                                 set_cdda_status(CDDA_PAUSED);
 677                         }
 678                 }
 679                 // change to status phase
 680                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 681                 if(is_device_ready()) write_signals(&outputs_done, 0xffffffff);
 682                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 683                 return;
 684
 685         case 0xdd:
 686                 #ifdef _SCSI_DEBUG_LOG
 687                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Read Sub Channel Q\n"), scsi_id);
 688                 #endif
 689                 if(is_device_ready()) {
 690                         // create track info
 691                         uint32_t frame = (cdda_status == CDDA_OFF) ? cdda_start_frame : cdda_playing_frame;
 692                         uint32_t msf_abs = lba_to_msf_alt(frame);
 693                         int track;
 694                         double delay_time = 10.0;
 695                         track = current_track;
 696                         if((cdda_status == CDDA_OFF) && (toc_table[track].is_audio)) { // OK? (or force ERROR) 20181120 K.O
 697                                 //set_cdda_status(CDDA_PLAYING);
 698                                 delay_time = get_seek_time(frame);
 699                                 //delay_time = 10.0;
 700                                 if(event_cdda_delay_play >= 0) {
 701                                         cancel_event(this, event_cdda_delay_play);
 702                                         event_cdda_delay_play = -1;
 703                                 }
 704                                 register_event(this, EVENT_CDDA_DELAY_PLAY, delay_time, false, &event_cdda_delay_play);
 705                         }
 706                         uint32_t msf_rel = lba_to_msf_alt(frame - toc_table[track].index0);
 707                         buffer->clear();
 708                         buffer->write((cdda_status == CDDA_PLAYING) ? 0x00 : (cdda_status == CDDA_PAUSED) ? 0x02 : 0x03);
 709                         buffer->write(0x01 | (toc_table[track].is_audio ? 0x00 : 0x40));
 710                         buffer->write(TO_BCD(track + 1));               // Track
 711                         buffer->write(0x01);                            // Index
 712                         buffer->write(TO_BCD((msf_rel >> 16) & 0xff));  // M (relative)
 713                         buffer->write(TO_BCD((msf_rel >>  8) & 0xff));  // S (relative)
 714                         buffer->write(TO_BCD((msf_rel >>  0) & 0xff));  // F (relative)
 715                         buffer->write(TO_BCD((msf_abs >> 16) & 0xff));  // M (absolute)
 716                         buffer->write(TO_BCD((msf_abs >>  8) & 0xff));  // S (absolute)
 717                         buffer->write(TO_BCD((msf_abs >>  0) & 0xff));  // F (absolute)
 718                         // transfer length
 719                         remain = buffer->count();
 720                         // set first data
 721                         set_dat(buffer->read());
 722                         // change to data in phase
 723                         set_phase_delay(SCSI_PHASE_DATA_IN, 10.0);
 724                 } else {
 725                         // change to status phase
 726                         set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 727                         set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 728                 }
 729                 return;
 730
 731         case 0xde:
 732                 #ifdef _SCSI_DEBUG_LOG
 733                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Get Dir Info\n"), scsi_id);
 734                 #endif
 735                 if(is_device_ready()) {
 736                         buffer->clear();
 737                 #ifdef _SCSI_DEBUG_LOG
 738                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] CMD=%02x ARG=%02x \n"), scsi_id, command[1], command[2]);
 739                 #endif
 740                         switch(command[1]) {
 741                         case 0x00:      /* Get first and last track numbers */
 742                                 buffer->write(TO_BCD(1));
 743                                 buffer->write(TO_BCD(track_num));
 744                                 // PC-8801 CD BIOS invites 4 bytes ?
 745                                 buffer->write(0);
 746                                 buffer->write(0);
 747                                 break;
 748                         case 0x01:      /* Get total disk size in MSF format */
 749                                 {
 750                                         uint32_t msf = lba_to_msf(toc_table[track_num].index0 + 150);
 751                                         buffer->write((msf >> 16) & 0xff);
 752                                         buffer->write((msf >>  8) & 0xff);
 753                                         buffer->write((msf >>  0) & 0xff);
 754                                         // PC-8801 CD BIOS invites 4 bytes ?
 755                                         buffer->write(0);
 756                                 }
 757                                 break;
 758                         case 0x02:      /* Get track information */
 759                                 if(command[2] == 0xaa) {
 760                                         uint32_t msf = lba_to_msf(toc_table[track_num].index0 + 150);
 761                                         buffer->write((msf >> 16) & 0xff);
 762                                         buffer->write((msf >>  8) & 0xff);
 763                                         buffer->write((msf >>  0) & 0xff);
 764                                         buffer->write(0x04); // correct ?
 765                                 } else {
 766                                         int track = max(FROM_BCD(command[2]), 1);
 767                                         uint32_t frame = toc_table[track].index0;
 768                                         // PCE wants the start sector for data tracks to *not* include the pregap
 769                                         if(!toc_table[track].is_audio) {
 770                                                 frame += toc_table[track].pregap;
 771                                         }
 772                                         get_track_by_track_num(track);
 773
 774                                         uint32_t msf = lba_to_msf(toc_table[track].index1 + 150);
 775                                         buffer->write((msf >> 16) & 0xff); // M
 776                                         buffer->write((msf >>  8) & 0xff); // S
 777                                         buffer->write((msf >>  0) & 0xff); // F
 778                                         buffer->write(toc_table[track].is_audio ? 0x00 : 0x04);
 779                                 }
 780                                 break;
 781                         }
 782                         // transfer length
 783                         remain = buffer->count();
 784                         // set first data
 785                         set_dat(buffer->read());
 786                         // change to data in phase
 787                         set_phase_delay(SCSI_PHASE_DATA_IN, 10.0);
 788                 } else {
 789                         // change to status phase
 790                         set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 791                         set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 792                 }
 793                 return;
 794         case 0xff:
 795                 // End of List
 796                 set_dat(SCSI_STATUS_CHKCOND);
 797                 return;
 798         }
 799
 800         // start standard command
 801         SCSI_DEV::start_command();
 802 }
 803
 804 bool SCSI_CDROM::read_buffer(int length)
 805 {
 806         if(!fio_img->IsOpened()) {
 807                 set_sense_code(SCSI_SENSE_NOTREADY);
 808                 return false;
 809         }
 810         uint32_t offset = (uint32_t)(position % 2352);
 811
 812         if(is_cue) {
 813                 // ToDo: Need seek wait.
 814                 #ifdef _CDROM_DEBUG_LOG
 815                         this->out_debug_log(_T("Seek to LBA %d\n"), position / 2352);
 816                 #endif
 817                 if(fio_img->Fseek(((long)position - (long)(toc_table[current_track].lba_offset * 2352)), FILEIO_SEEK_SET) != 0) {
 818                         set_sense_code(SCSI_SENSE_ILLGLBLKADDR); //SCSI_SENSE_SEEKERR
 819                         #ifdef _SCSI_DEBUG_LOG
 820                                 this->out_debug_log(_T("[SCSI_DEV:ID=%d] Error on reading (ILLGLBLKADDR) at line %d\n"), scsi_id, __LINE__);
 821                         #endif
 822                         return false;
 823                 }
 824         } else {
 825                 if(fio_img->Fseek((long)position, FILEIO_SEEK_SET) != 0) {
 826                         set_sense_code(SCSI_SENSE_ILLGLBLKADDR); //SCSI_SENSE_SEEKERR
 827                         #ifdef _SCSI_DEBUG_LOG
 828                                 this->out_debug_log(_T("[SCSI_DEV:ID=%d] Error on reading (ILLGLBLKADDR) at line %d\n"), scsi_id, __LINE__);
 829                         #endif
 830                         return false;
 831                 }
 832         }
 833         while(length > 0) {
 834                 uint8_t tmp_buffer[2352];
 835 //              int tmp_length = min(length, (int)sizeof(tmp_buffer));
 836                 int tmp_length = 2352 - offset;
 837
 838                 if(fio_img->Fread(tmp_buffer, tmp_length, 1) != 1) {
 839                         #ifdef _SCSI_DEBUG_LOG
 840                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Error on reading (ILLGLBLKADDR) at line %d\n"), scsi_id, __LINE__);
 841                         #endif
 842
 843                         set_sense_code(SCSI_SENSE_ILLGLBLKADDR); //SCSI_SENSE_NORECORDFND
 844                         return false;
 845                 }
 846                 for(int i = 0; i < tmp_length; i++) {
 847                         if(offset >= 16 && offset < 16 + logical_block_size()) {
 848                                 int value = tmp_buffer[i];
 849                                 buffer->write(value);
 850                                 length--;
 851                         }
 852                         position++;
 853                         offset = (offset + 1) % 2352;
 854                 }
 855                 access = true;
 856         }
 857         // Is This right? 20181120 K.O
 858         //write_signals(&outputs_done, 0xffffffff); // Maybe don't need "DONE SIGNAL" with reading DATA TRACK. 20181207 K.O
 859         set_sense_code(SCSI_SENSE_NOSENSE);
 860         return true;
 861 }
 862
 863 bool SCSI_CDROM::write_buffer(int length)
 864 {
 865         for(int i = 0; i < length; i++) {
 866                 int value = buffer->read();
 867                 if(command[0] == SCSI_CMD_MODE_SEL6) {
 868                         if(i == 4) {
 869                                 #ifdef _SCSI_DEBUG_LOG
 870                                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] NEC Read Mode = %02X\n"), scsi_id, value);
 871                                 #endif
 872                                 read_mode = (value != 0);
 873                         } else if(i == 10) {
 874                                 #ifdef _SCSI_DEBUG_LOG
 875                                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] NEC Retry Count = %02X\n"), scsi_id, value);
 876                                 #endif
 877                         }
 878                 }
 879                 position++;
 880         }
 881         set_sense_code(SCSI_SENSE_NOSENSE);
 882         return true;
 883 }
 884
 885 int get_frames_from_msf(const char *string)
 886 {
 887         const char *ptr = string;
 888         int frames[3] = {0};
 889         int index = 0;
 890
 891         while(1) {
 892                 if(*ptr >= '0' && *ptr <= '9') {
 893                         frames[index] = frames[index] * 10 + (*ptr - '0');
 894                 } else if(*ptr == ':') {
 895                         if(++index == 3) {
 896                                 // abnormal data
 897                                 break;
 898                         }
 899                 } else if(*ptr == '\r' || *ptr == '\n' || *ptr == '\0') {
 900                         // end of line
 901                         break;
 902                 }
 903                 ptr++;
 904         }
 905         return (frames[0] * 60 + frames[1]) * 75 + frames[2]; // 75frames/sec
 906 }
 907
 908 int hexatoi(const char *string)
 909 {
 910         const char *ptr = string;
 911         int value = 0;
 912
 913         while(1) {
 914                 if(*ptr >= '0' && *ptr <= '9') {
 915                         value = value * 16 + (*ptr - '0');
 916                 } else if(*ptr >= 'a' && *ptr <= 'f') {
 917                         value = value * 16 + (*ptr - 'a' + 10);
 918                 } else if(*ptr >= 'A' && *ptr <= 'F') {
 919                         value = value * 16 + (*ptr - 'A' + 10);
 920                 } else if(*ptr == '\r' || *ptr == '\n' || *ptr == '\0') {
 921                         break;
 922                 }
 923                 ptr++;
 924         }
 925         return value;
 926 }
 927
 928 #include <string>
 929
 930 bool SCSI_CDROM::open_cue_file(const _TCHAR* file_path)
 931 {
 932         std::string line_buf;
 933         std::string line_buf_shadow;
 934         std::string image_tmp_data_path;
 935
 936         _TCHAR full_path_cue[_MAX_PATH];
 937         size_t ptr;
 938         int line_count = 0;
 939         int slen;
 940         int nr_current_track = 0;
 941         FILEIO* fio = new FILEIO();
 942         if(fio == NULL) return false;
 943
 944         memset(full_path_cue, 0x00, sizeof(full_path_cue));
 945         image_tmp_data_path.clear();
 946
 947         get_long_full_path_name(file_path, full_path_cue, sizeof(full_path_cue));
 948
 949         _TCHAR *parent_dir = get_parent_dir(full_path_cue);
 950
 951         size_t _arg1_ptr;
 952         size_t _arg2_ptr;
 953         size_t _arg2_ptr_s;
 954         size_t _arg3_ptr;
 955         size_t _arg3_ptr_s;
 956
 957         std::string _arg1;
 958         std::string _arg2;
 959         std::string _arg3;
 960
 961         if(fio->Fopen(file_path, FILEIO_READ_ASCII)) { // ToDo: Support not ASCII cue file (i.e. SJIS/UTF8).20181118 K.O
 962                 line_buf.clear();
 963                 for(int i = 0; i < 100; i++) {
 964                         memset(&(track_data_path[i][0]), 0x00, _MAX_PATH * sizeof(_TCHAR));
 965                 }
 966                 int _c;
 967                 bool is_eof = false;
 968                 int sptr = 0;
 969                 while(1) {
 970                         line_buf.clear();
 971                         int _np = 0;
 972                         _c = EOF;
 973                         do {
 974                                 _c = fio->Fgetc();
 975                                 if((_c == '\0') || (_c == '\n') || (_c == EOF)) break;;
 976                                 if(_c != '\r') line_buf.push_back((char)_c);
 977                         } while(1);
 978                         if(_c == EOF) is_eof = true;
 979                         slen = (int)line_buf.length();
 980                         if(slen <= 0) goto _n_continue;
 981                         // Trim head of Space or TAB
 982                         ptr = 0;
 983                         sptr = 0;
 984                         // Tokenize
 985                         _arg1.clear();
 986                         _arg2.clear();
 987                         _arg3.clear();
 988
 989                         ptr = line_buf.find_first_not_of((const char*)" \t");
 990                         if(ptr == std::string::npos) {
 991                                 goto _n_continue;
 992                         }
 993                         // Token1
 994                         line_buf_shadow = line_buf.substr(ptr);
 995
 996                         _arg1_ptr = line_buf_shadow.find_first_of((const char *)" \t");
 997                         _arg1 = line_buf_shadow.substr(0, _arg1_ptr);
 998                         _arg2 = line_buf_shadow.substr(_arg1_ptr);
 999                         std::transform(_arg1.begin(), _arg1.end(), _arg1.begin(),
1000                                                    [](unsigned char c) -> unsigned char{ return std::toupper(c); });
1001
1002                         _arg2_ptr = _arg2.find_first_not_of((const char *)" \t");
1003
1004                         if(_arg2_ptr != std::string::npos) {
1005                                 _arg2 = _arg2.substr(_arg2_ptr);
1006                         }
1007
1008                         if(_arg1 == "REM") {
1009                                 // REM
1010                                 goto _n_continue;
1011                         } else if(_arg1 == "FILE") {
1012                                 _arg2_ptr = _arg2.find_first_of((const char *)"\"") + 1;
1013                                 if(_arg2_ptr == std::string::npos) goto _n_continue;
1014
1015                                 _arg2 = _arg2.substr(_arg2_ptr);
1016                                 _arg3_ptr = _arg2.find_first_of((const char *)"\"");
1017                                 if(_arg3_ptr == std::string::npos) goto _n_continue;
1018                                 _arg2 = _arg2.substr(0, _arg3_ptr);
1019
1020                                 image_tmp_data_path.clear();
1021                                 image_tmp_data_path = std::string(parent_dir);
1022                                 image_tmp_data_path.append(_arg2);
1023
1024                                 #ifdef _CDROM_DEBUG_LOG
1025                                         this->out_debug_log(_T("**FILE %s\n"), image_tmp_data_path.c_str());
1026                                 #endif
1027                                 goto _n_continue; // ToDo: Check ARG2 (BINARY etc..) 20181118 K.O
1028                         } else if(_arg1 == "TRACK") {
1029                                 _arg2_ptr_s = _arg2.find_first_of((const char *)" \t");
1030
1031                                 _arg3 = _arg2.substr(_arg2_ptr_s);
1032                                 _arg2 = _arg2.substr(0, _arg2_ptr_s);
1033                                 _arg3_ptr = _arg3.find_first_not_of((const char *)" \t");
1034                                 int _nr_num = atoi(_arg2.c_str());
1035
1036                                 // Set image file
1037                                 if((_nr_num > 0) && (_nr_num < 100) && (_arg3_ptr != std::string::npos)) {
1038                                         nr_current_track = _nr_num;
1039                                         _arg3 = _arg3.substr(_arg3_ptr);
1040
1041                                         memset(track_data_path[_nr_num - 1], 0x00, sizeof(_TCHAR) * _MAX_PATH);
1042                                         strncpy((char *)(track_data_path[_nr_num - 1]), image_tmp_data_path.c_str(), _MAX_PATH);
1043
1044                                         _arg3_ptr_s = _arg3.find_first_of((const char *)" \t\n");
1045                                         _arg3.substr(0, _arg3_ptr_s);
1046
1047                                         std::transform(_arg3.begin(), _arg3.end(), _arg3.begin(),
1048                                                                    [](unsigned char c) -> unsigned char{ return std::toupper(c); });
1049
1050                                         toc_table[nr_current_track].is_audio = false;
1051                                         toc_table[nr_current_track].index0 = 0;
1052                                         toc_table[nr_current_track].index1 = 0;
1053                                         toc_table[nr_current_track].pregap = 0;
1054
1055                                         if(_arg3.compare("AUDIO") == 0) {
1056                                                 toc_table[nr_current_track].is_audio = true;
1057                                         } else if(_arg3.compare("MODE1/2352") == 0) {
1058                                                 toc_table[nr_current_track].is_audio = false;
1059                                         } else {
1060                                                 // ToDo:  another type
1061                                         }
1062                                         if(track_num < (_nr_num + 1)) track_num = _nr_num + 1;
1063                                 } else {
1064                                         // ToDo: 20181118 K.Ohta
1065                                         nr_current_track = 0;
1066                                 }
1067                                 goto _n_continue;
1068                         } else if(_arg1 == "INDEX") {
1069
1070                                 if((nr_current_track > 0) && (nr_current_track < 100)) {
1071                                         _arg2_ptr_s = _arg2.find_first_of((const char *)" \t");
1072                                         if(_arg2_ptr_s == std::string::npos) goto _n_continue;
1073
1074                                         _arg3 = _arg2.substr(_arg2_ptr_s);
1075                                         _arg2 = _arg2.substr(0, _arg2_ptr_s);
1076                                         _arg3_ptr = _arg3.find_first_not_of((const char *)" \t");
1077                                         if(_arg3_ptr == std::string::npos) goto _n_continue;
1078
1079                                         _arg3 = _arg3.substr(_arg3_ptr);
1080                                         _arg3_ptr_s = _arg3.find_first_of((const char *)" \t");
1081                                         _arg3.substr(0, _arg3_ptr_s);
1082                                         int index_type = atoi(_arg2.c_str());
1083
1084                                         switch(index_type) {
1085                                         case 0:
1086                                                 toc_table[nr_current_track].index0 = get_frames_from_msf(_arg3.c_str());
1087                                                 break;
1088                                         case 1:
1089                                                 toc_table[nr_current_track].index1 = get_frames_from_msf(_arg3.c_str());
1090                                                 break;
1091                                         default:
1092                                                 break;
1093                                         }
1094                                         goto _n_continue;
1095                                 } else {
1096                                         goto _n_continue;
1097                                 }
1098                         } else if(_arg1 == "PREGAP") {
1099                                 if((nr_current_track > 0) && (nr_current_track < 100)) {
1100                                         _arg2_ptr_s = _arg2.find_first_of((const char *)" \t");
1101                                         _arg2 = _arg2.substr(0, _arg2_ptr_s - 1);
1102
1103                                         toc_table[nr_current_track].pregap = get_frames_from_msf(_arg2.c_str());
1104                                         goto _n_continue;
1105                                 } else {
1106                                         goto _n_continue;
1107                                 }
1108                         }
1109                 _n_continue:
1110                         if(is_eof) break;
1111                         line_buf.clear();
1112                         continue;
1113                 }
1114                 // Finish
1115                 max_logical_block = 0;
1116                 if(track_num > 0) {
1117                         toc_table[0].lba_offset = 0;
1118                         toc_table[0].lba_size = 0;
1119                         toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1120                         // P1: Calc
1121                         int _n = 0;
1122                         for(int i = 1; i < track_num; i++) {
1123
1124                                 if(fio_img->IsOpened()) {
1125                                         fio_img->Fclose();
1126                                 }
1127                                 if(toc_table[i].index1 != 0) {
1128                                         toc_table[i].index0 = toc_table[i].index0 + max_logical_block;
1129                                         toc_table[i].index1 = toc_table[i].index1 + max_logical_block;
1130                                         if(toc_table[i].index0 != max_logical_block) {
1131                                                 if(toc_table[i].pregap == 0) {
1132                                                         toc_table[i].pregap = toc_table[i].index1 - toc_table[i].index0;
1133                                                 }
1134                                         }
1135                                 } else {
1136                                         toc_table[i].index1 = toc_table[i].index1 + max_logical_block;
1137                                         if(toc_table[i].index0 == 0) {
1138                                                 toc_table[i].index0 = toc_table[i].index1 - toc_table[i].pregap;
1139                                         } else {
1140                                                 toc_table[i].index0 = toc_table[i].index0 + max_logical_block;
1141                                                 if(toc_table[i].pregap == 0) {
1142                                                         toc_table[i].pregap = toc_table[i].index1 - toc_table[i].index0;
1143                                                 }
1144                                         }
1145                                 }
1146                                 // Even...
1147                                 if(toc_table[i].pregap <= 0) {
1148                                         toc_table[i].pregap = 150; // Default PREGAP must be 2Sec. From OoTake.(Only with PCE? Not with FM-Towns?)
1149                                 }
1150
1151                                 _n = 0;
1152                                 if(strlen(track_data_path[i - 1]) > 0) {
1153                                         if(fio_img->Fopen(track_data_path[i - 1], FILEIO_READ_BINARY)) {
1154                                                 if((_n = fio_img->FileLength() / 2352) > 0) {
1155                                                         max_logical_block += _n;
1156                                                 } else {
1157                                                         _n = 0;
1158                                                 }
1159                                                 fio_img->Fclose();
1160                                         }
1161                                 }
1162                                 toc_table[i].lba_size = _n;
1163                                 toc_table[i].lba_offset = max_logical_block - _n;
1164
1165
1166                                 //#ifdef _CDROM_DEBUG_LOG
1167                                 this->out_debug_log(_T("TRACK#%02d TYPE=%s PREGAP=%d INDEX0=%d INDEX1=%d LBA_SIZE=%d LBA_OFFSET=%d PATH=%s\n"),
1168                                                                         i, (toc_table[i].is_audio) ? _T("AUDIO") : _T("MODE1/2352"),
1169                                                                         toc_table[i].pregap, toc_table[i].index0, toc_table[i].index1,
1170                                                                         toc_table[i].lba_size, toc_table[i].lba_offset, track_data_path[i - 1]);
1171                                 //#endif
1172                         }
1173                         toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1174 //                      toc_table[track_num].index0 = toc_table[track_num].index1 = max_logical_block;
1175 //                      toc_table[track_num].lba_offset = max_logical_block;
1176 //                      toc_table[track_num].lba_size = 0;
1177
1178                 }
1179                 fio->Fclose();
1180         }
1181         delete fio;
1182
1183         is_cue = false;
1184         if(track_num > 0) is_cue = true;
1185         // Not Cue FILE.
1186         return is_cue;
1187 }
1188
1189 void SCSI_CDROM::open(const _TCHAR* file_path)
1190 {
1191         _TCHAR img_file_path[_MAX_PATH];
1192
1193         close();
1194
1195         if(check_file_extension(file_path, _T(".cue"))) {
1196 #if 1
1197                 is_cue = false;
1198                 current_track = 0;
1199                 open_cue_file(file_path);
1200 #else
1201                 // get image file name
1202                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img"), get_file_path_without_extensiton(file_path));
1203                 if(!FILEIO::IsFileExisting(img_file_path)) {
1204                         my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.bin"), get_file_path_without_extensiton(file_path));
1205                         if(!FILEIO::IsFileExisting(img_file_path)) {
1206                                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.gz"), get_file_path_without_extensiton(file_path));
1207                                 if(!FILEIO::IsFileExisting(img_file_path)) {
1208                                         my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img.gz"), get_file_path_without_extensiton(file_path));
1209                                         if(!FILEIO::IsFileExisting(img_file_path)) {
1210                                                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.bin.gz"), get_file_path_without_extensiton(file_path));
1211                                         }
1212                                 }
1213                         }
1214                 }
1215                 if(fio_img->Fopen(img_file_path, FILEIO_READ_BINARY)) {
1216                         // get image file size
1217                         if((max_logical_block = fio_img->FileLength() / 2352) > 0) {
1218                                 // read cue file
1219                                 FILEIO* fio = new FILEIO();
1220                                 if(fio->Fopen(file_path, FILEIO_READ_BINARY)) {
1221                                         char line[1024], *ptr;
1222                                         int track = -1;
1223                                         while(fio->Fgets(line, 1024) != NULL) {
1224                                                 if(strstr(line, "FILE") != NULL) {
1225                                                         // do nothing
1226                                                 } else if((ptr = strstr(line, "TRACK")) != NULL) {
1227                                                         // "TRACK 01 AUDIO"
1228                                                         // "TRACK 02 MODE1/2352"
1229                                                         ptr += 6;
1230                                                         while(*ptr == ' ' || *ptr == 0x09) {
1231                                                                 ptr++;
1232                                                         }
1233                                                         if((track = atoi(ptr)) > 0) {
1234                                                                 if(track > track_num) {
1235                                                                         track_num = track;
1236                                                                 }
1237                                                                 toc_table[track - 1].is_audio = (strstr(line, "AUDIO") != NULL);
1238                                                         }
1239                                                 } else if((ptr = strstr(line, "PREGAP")) != NULL) {
1240                                                         // "PREGAP 00:02:00"
1241                                                         if(track > 0) {
1242                                                                 toc_table[track - 1].pregap = get_frames_from_msf(ptr + 7);
1243                                                         }
1244                                                 } else if((ptr = strstr(line, "INDEX")) != NULL) {
1245                                                         // "INDEX 01 00:00:00"
1246                                                         if(track > 0) {
1247                                                                 ptr += 6;
1248                                                                 while(*ptr == ' ' || *ptr == 0x09) {
1249                                                                         ptr++;
1250                                                                 }
1251                                                                 int num = atoi(ptr);
1252                                                                 while(*ptr >= '0' && *ptr <= '9') {
1253                                                                         ptr++;
1254                                                                 }
1255                                                                 if(num == 0) {
1256                                                                         toc_table[track - 1].index0 = get_frames_from_msf(ptr);
1257                                                                 } else if(num == 1) {
1258                                                                         toc_table[track - 1].index1 = get_frames_from_msf(ptr);
1259                                                                 }
1260                                                         }
1261                                                 }
1262                                         }
1263                                         if(track_num != 0) {
1264                                                 for(int i = 1; i < track_num; i++) {
1265                                                         if(toc_table[i].index0 == 0) {
1266                                                                 toc_table[i].index0 = toc_table[i].index1 - toc_table[i].pregap;
1267                                                         } else if(toc_table[i].pregap == 0) {
1268                                                                 toc_table[i].pregap = toc_table[i].index1 - toc_table[i].index0;
1269                                                         }
1270                                                 }
1271                                                 toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1272                                                 toc_table[track_num].index0 = toc_table[track_num].index1 = max_logical_block;
1273                                         } else {
1274                                                 fio_img->Fclose();
1275                                         }
1276                                         fio->Fclose();
1277                                 }
1278                                 delete fio;
1279                         }
1280                 }
1281 #endif
1282         } else if(check_file_extension(file_path, _T(".ccd"))) {
1283                 // get image file name
1284                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img"), get_file_path_without_extensiton(file_path));
1285                 if(!FILEIO::IsFileExisting(img_file_path)) {
1286                         my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.gz"), get_file_path_without_extensiton(file_path));
1287                         if(!FILEIO::IsFileExisting(img_file_path)) {
1288                                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img.gz"), get_file_path_without_extensiton(file_path));
1289                         }
1290                 }
1291                 if(fio_img->Fopen(img_file_path, FILEIO_READ_BINARY)) {
1292                         is_cue = false;
1293                         current_track = 0;
1294                         // get image file size
1295                         if((max_logical_block = fio_img->FileLength() / 2352) > 0) {
1296                                 // read cue file
1297                                 FILEIO* fio = new FILEIO();
1298                                 if(fio->Fopen(file_path, FILEIO_READ_BINARY)) {
1299                                         char line[1024], *ptr;
1300                                         int track = -1;
1301                                         while(fio->Fgets(line, 1024) != NULL) {
1302                                                 if(strstr(line, "[Session ") != NULL) {
1303                                                         track = -1;
1304                                                 } else if((ptr = strstr(line, "Point=0x")) != NULL) {
1305                                                         if((track = hexatoi(ptr + 8)) > 0 && track < 0xa0) {
1306                                                                 if(track > track_num) {
1307                                                                         track_num = track;
1308                                                                 }
1309                                                         }
1310                                                 } else if((ptr = strstr(line, "Control=0x")) != NULL) {
1311                                                         if(track > 0 && track < 0xa0) {
1312                                                                 toc_table[track - 1].is_audio = (hexatoi(ptr + 10) != 4);
1313                                                         }
1314                                                 } else if((ptr = strstr(line, "ALBA=-")) != NULL) {
1315                                                         if(track > 0 && track < 0xa0) {
1316                                                                 toc_table[track - 1].pregap = atoi(ptr + 6);
1317                                                         }
1318                                                 } else if((ptr = strstr(line, "PLBA=")) != NULL) {
1319                                                         if(track > 0 && track < 0xa0) {
1320                                                                 toc_table[track - 1].index1 = atoi(ptr + 5);
1321                                                         }
1322                                                 }
1323                                         }
1324                                         if(track_num != 0) {
1325                                                 toc_table[0].lba_offset = 0;
1326                                                 toc_table[0].pregap = 0;
1327                                                 for(int i = 1; i < track_num; i++) {
1328                                                         toc_table[i].index0 = toc_table[i].index1 - toc_table[i].pregap;
1329                                                         toc_table[i].lba_offset = toc_table[i].pregap;
1330                                                         toc_table[i - 1].lba_size = toc_table[i].pregap - toc_table[i - 1].pregap;
1331                                                 }
1332                                                 toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1333                                                 toc_table[track_num].index0 = toc_table[track_num].index1 = max_logical_block;
1334                                                 if(track_num > 0) {
1335                                                         toc_table[track_num].lba_size = max_logical_block - toc_table[track_num - 1].lba_offset;
1336                                                 } else {
1337                                                         toc_table[track_num].lba_size = 0;
1338                                                 }
1339                                         } else {
1340                                                 fio_img->Fclose();
1341                                         }
1342                                         fio->Fclose();
1343                                 }
1344                                 delete fio;
1345                         }
1346                 }
1347         }
1348 #ifdef _SCSI_DEBUG_LOG
1349         if(mounted()) {
1350                 for(int i = 0; i < track_num + 1; i++) {
1351                         uint32_t idx0_msf = lba_to_msf(toc_table[i].index0);
1352                         uint32_t idx1_msf = lba_to_msf(toc_table[i].index1);
1353                         uint32_t pgap_msf = lba_to_msf(toc_table[i].pregap);
1354                         this->out_debug_log(_T("Track%02d: Index0=%02x:%02x:%02x Index1=%02x:%02x:%02x PreGpap=%02x:%02x:%02x\n"), i + 1,
1355                         (idx0_msf >> 16) & 0xff, (idx0_msf >> 8) & 0xff, idx0_msf & 0xff,
1356                         (idx1_msf >> 16) & 0xff, (idx1_msf >> 8) & 0xff, idx1_msf & 0xff,
1357                         (pgap_msf >> 16) & 0xff, (pgap_msf >> 8) & 0xff, pgap_msf & 0xff);
1358                 }
1359         }
1360 #endif
1361 }
1362
1363 void SCSI_CDROM::close()
1364 {
1365         if(fio_img->IsOpened()) {
1366                 fio_img->Fclose();
1367         }
1368         memset(toc_table, 0, sizeof(toc_table));
1369         track_num = 0;
1370         is_cue = false;
1371         current_track = 0;
1372         set_cdda_status(CDDA_OFF);
1373 }
1374
1375 bool SCSI_CDROM::mounted()
1376 {
1377         if(is_cue) return true;
1378         return fio_img->IsOpened();
1379 }
1380
1381 bool SCSI_CDROM::accessed()
1382 {
1383         bool value = access;
1384         access = false;
1385         return value;
1386 }
1387
1388 void SCSI_CDROM::mix(int32_t* buffer, int cnt)
1389 {
1390         if(cdda_status == CDDA_PLAYING) {
1391                 if(mix_loop_num != 0) {
1392                         int tmp_l = 0, tmp_r = 0;
1393                         for(int i = 0; i < mix_loop_num; i++) {
1394                                 event_callback(EVENT_CDDA, 0);
1395                                 tmp_l += cdda_sample_l;
1396                                 tmp_r += cdda_sample_r;
1397                         }
1398                         cdda_sample_l = tmp_l / mix_loop_num;
1399                         cdda_sample_r = tmp_r / mix_loop_num;
1400                 }
1401                 int32_t val_l = apply_volume(apply_volume(cdda_sample_l, volume_m), volume_l);
1402                 int32_t val_r = apply_volume(apply_volume(cdda_sample_r, volume_m), volume_r);
1403
1404                 for(int i = 0; i < cnt; i++) {
1405                         *buffer++ += val_l; // L
1406                         *buffer++ += val_r; // R
1407                 }
1408         }
1409 }
1410
1411 void SCSI_CDROM::set_volume(int ch, int decibel_l, int decibel_r)
1412 {
1413         volume_l = decibel_to_volume(decibel_l + 3.0);
1414         volume_r = decibel_to_volume(decibel_r + 3.0);
1415 }
1416
1417 void SCSI_CDROM::set_volume(int volume)
1418 {
1419         volume_m = (int)(1024.0 * (max(0, min(100, volume)) / 100.0));
1420 }
1421
1422 #define STATE_VERSION   4
1423
1424 // Q: If loading state when using another (saved) image? 20181013 K.O
1425 //    May need close() and open() (or ...?).
1426 bool SCSI_CDROM::process_state(FILEIO* state_fio, bool loading)
1427 {
1428         uint32_t offset = 0;
1429
1430         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
1431                 return false;
1432         }
1433         if(!state_fio->StateCheckInt32(this_device_id)) {
1434                 return false;
1435         }
1436         state_fio->StateValue(cdda_start_frame);
1437         state_fio->StateValue(cdda_end_frame);
1438         state_fio->StateValue(cdda_playing_frame);
1439         state_fio->StateValue(cdda_status);
1440         state_fio->StateValue(cdda_repeat);
1441         state_fio->StateValue(cdda_interrupt);
1442         state_fio->StateArray(cdda_buffer, sizeof(cdda_buffer), 1);
1443         state_fio->StateValue(cdda_buffer_ptr);
1444         state_fio->StateValue(cdda_sample_l);
1445         state_fio->StateValue(cdda_sample_r);
1446         state_fio->StateValue(event_cdda);
1447         state_fio->StateValue(event_cdda_delay_play);
1448         state_fio->StateValue(event_delay_interrupt);
1449         state_fio->StateValue(read_sectors);
1450 //      state_fio->StateValue(mix_loop_num);
1451         state_fio->StateValue(read_mode);
1452         state_fio->StateValue(volume_m);
1453         if(loading) {
1454                 offset = state_fio->FgetUint32_LE();
1455         } else {
1456                 if(fio_img->IsOpened()) {
1457                         offset = fio_img->Ftell();
1458                 }
1459                 state_fio->FputUint32_LE(offset);
1460         }
1461
1462         state_fio->StateValue(is_cue);
1463         state_fio->StateValue(current_track);
1464         // ToDo: Re-Open Image.20181118 K.O
1465         // post process
1466         if(loading && fio_img->IsOpened()) {
1467                 fio_img->Fseek(offset, FILEIO_SEEK_SET);
1468         }
1469         return SCSI_DEV::process_state(state_fio, loading);
1470 }