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                 read_mode = (command[4] != 0);
 434                 break;
 435
 436         case 0xd8:
 437                 #ifdef _SCSI_DEBUG_LOG
 438                 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]);
 439                 #endif
 440                 if(is_device_ready()) {
 441                         if(command[2] == 0 && command[3] == 0 && command[4] == 0) {
 442                                 // stop cd-da if all params are zero
 443                                 cdda_start_frame = 0;
 444                                 cdda_end_frame = toc_table[track_num].index0; // end of disc
 445                                 double seek_time = get_seek_time(cdda_end_frame);
 446                                 if(is_cue) {
 447                                         get_track_by_track_num(track_num);
 448                                 }
 449                                 //set_cdda_status(CDDA_OFF);
 450                                 if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 451                                 register_event(this, EVENT_CDDA_DELAY_STOP, (seek_time > 10.0) ? seek_time : 10.0, false, &event_cdda_delay_play);
 452                         } else {
 453                                 uint32_t seek_offset = 0;
 454                                 switch(command[9] & 0xc0) {
 455                                 case 0x00:
 456                                         cdda_start_frame = (command[2] << 16) | (command[3] << 8) | command[4];
 457                                         break;
 458                                 case 0x40:
 459                                         {
 460                                                 uint8_t m = FROM_BCD(command[2]);
 461                                                 uint8_t s = FROM_BCD(command[3]);
 462                                                 uint8_t f = FROM_BCD(command[4]);
 463                                                 cdda_start_frame = f + 75 * (s + m * 60);
 464
 465                                                 // PCE tries to be clever here and set (start of track + track pregap size) to skip the pregap
 466                                                 // (I guess it wants the TOC to have the real start sector for data tracks and the start of the pregap for audio?)
 467                                                 int track = get_track(cdda_start_frame);
 468                                                 if(cdda_start_frame >= toc_table[track].pregap) {
 469                                                         cdda_start_frame -= toc_table[track].pregap;
 470                                                 }
 471                                                 if(cdda_start_frame < toc_table[track].index0) {
 472                                                         cdda_start_frame = toc_table[track].index0; // don't play pregap
 473                                                 } else if(cdda_start_frame > max_logical_block) {
 474                                                         cdda_start_frame = 0;
 475                                                 }
 476                                         }
 477                                         break;
 478                                 case 0x80:
 479                                         {
 480                                                 int8_t track = FROM_BCD(command[2] - 1);
 481                                                 cdda_start_frame = toc_table[track].index1;
 482                                                 if(cdda_start_frame >= toc_table[track].pregap) {
 483                                                         cdda_start_frame -= toc_table[track].pregap;
 484                                                 }
 485                                         }
 486                                         break;
 487                                 default:
 488                                         cdda_start_frame = 0;
 489                                         break;
 490                                 }
 491 //                              if(cdda_status == CDDA_PAUSED) {
 492 //                                      cdda_end_frame = toc_table[track_num].index0; // end of disc
 493 //                                      set_cdda_status(CDDA_OFF);
 494 //                              } else
 495                                 double delay_time = get_seek_time(cdda_start_frame);
 496                                 if((command[1] & 3) != 0) {
 497                                         if((is_cue) && (current_track != track_num)){
 498                                                 get_track_by_track_num(track_num);
 499                                         }
 500                                         cdda_end_frame = toc_table[track_num].index0; // end of disc
 501                                         double seek_time = get_seek_time(cdda_start_frame);
 502                                         if(event_cdda_delay_play >= 0) {
 503                                                 cancel_event(this, event_cdda_delay_play);
 504                                                 event_cdda_delay_play = -1;
 505                                         }
 506                                         //set_cdda_status(CDDA_PLAYING);
 507                                         register_event(this, EVENT_CDROM_SEEK_SCSI, seek_time, false, &event_cdda_delay_play);
 508                                 } else {
 509                                         uint32_t _sframe = cdda_start_frame;
 510                                         //cdda_end_frame = toc_table[get_track(_sframe) + 1].index1; // end of this track
 511                                         //cdda_end_frame = toc_table[get_track(_sframe)].index1; // end of this track
 512                                         set_cdda_status(CDDA_PAUSED);
 513                                 }
 514                                 cdda_repeat = false;
 515                                 cdda_interrupt = ((command[1] & 3) == 2);
 516
 517                                 // read buffer
 518                                 //double delay_time = 10.0;
 519 #if 1
 520                                 if(is_cue) {
 521                                         //if(cdda_start_frame > 150) cdda_start_frame = cdda_start_frame - 150;
 522                                         fio_img->Fseek((cdda_start_frame - toc_table[current_track].index0) * 2352, FILEIO_SEEK_SET);
 523                                 } else {
 524                                         fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 525                                 }
 526 #endif
 527                                 read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 528                                 cdda_buffer_ptr = 0;
 529                                 cdda_playing_frame = cdda_start_frame;
 530                                 access = true;
 531
 532                                 // change to status phase
 533                                 set_dat(SCSI_STATUS_GOOD);
 534                                 // From Mame 0.203
 535                                 if(event_delay_interrupt >= 0) cancel_event(this, event_delay_interrupt);
 536                                 register_event(this, EVENT_CDROM_DELAY_INTERRUPT_ON, delay_time, false, &event_delay_interrupt);
 537                                 //set_phase_delay(SCSI_PHASE_STATUS, delay_time + 10.0);
 538                                 //write_signals(&outputs_done, 0xffffffff);
 539                                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 540                                 return;
 541                         }
 542                 }
 543                 // change to status phase
 544                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 545                 // From Mame 0.203
 546                 //if(is_device_ready()) write_signals(&outputs_done, 0xffffffff);
 547                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 548
 549                 return;
 550
 551         case 0xd9:
 552                 #ifdef _SCSI_DEBUG_LOG
 553                 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]);
 554                 #endif
 555                 if(is_device_ready()) {
 556
 557                         switch(command[9] & 0xc0) {
 558                         case 0x00:
 559                                 cdda_end_frame = (command[3] << 16) | (command[4] << 8) | command[5];
 560                                 break;
 561                         case 0x40:
 562                                 {
 563                                         uint8_t m = FROM_BCD(command[2]);
 564                                         uint8_t s = FROM_BCD(command[3]);
 565                                         uint8_t f = FROM_BCD(command[4]);
 566                                         cdda_end_frame = f + 75 * (s + m * 60);
 567
 568                                         // PCE tries to be clever here and set (start of track + track pregap size) to skip the pregap
 569                                         // (I guess it wants the TOC to have the real start sector for data tracks and the start of the pregap for audio?)
 570
 571 //                                      int track = get_track(cdda_start_frame);
 572                                         int track = current_track;
 573                                         cdda_playing_frame = cdda_start_frame;
 574 //                                      if(is_cue) {
 575 //                                              fio_img->Fseek((cdda_start_frame - toc_table[current_track].lba_offset) * 2352, FILEIO_SEEK_SET);
 576 //                                      } else {
 577 //                                              fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 578 //                                      }
 579                                         //read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 580
 581                                         if(cdda_end_frame > toc_table[track + 1].index1 && (cdda_end_frame - toc_table[track].pregap) <= toc_table[track + 1].index1) {
 582                                                 cdda_end_frame = toc_table[track + 1].index1;
 583                                         }
 584                                         cdda_buffer_ptr = 0;
 585                                 }
 586                                 break;
 587                         case 0x80:
 588                                 {
 589                                         int _track = FROM_BCD(command[2]) - 1;
 590                                         if(_track >= 0) {
 591                                                 cdda_end_frame = toc_table[_track].index0;
 592                                                 if(is_cue) {
 593                                                         if(current_track != _track) {
 594                                                                 get_track_by_track_num(_track);
 595                                                                 cdda_start_frame = toc_table[_track].index0;
 596                                                                 cdda_end_frame = toc_table[_track].lba_size + toc_table[_track].lba_offset;
 597                                                                 cdda_playing_frame = cdda_start_frame;
 598                                                                 if(is_cue) {
 599                                                                         fio_img->Fseek((cdda_start_frame - toc_table[current_track].lba_offset) * 2352, FILEIO_SEEK_SET);
 600                                                                 } else {
 601                                                                         fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 602                                                                 }
 603                                                                 read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 604                                                                 cdda_buffer_ptr = 0;
 605                                                         }
 606                                                 }
 607                                         }
 608                                 }
 609                                 break;
 610                         default:
 611                                 break; // ToDo
 612                         }
 613                         if((command[1] & 3) != 0) {
 614                                 cdda_repeat = ((command[1] & 3) == 1);
 615                                 cdda_interrupt = ((command[1] & 3) == 2);
 616
 617                                 if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 618                                 register_event(this, EVENT_CDDA_DELAY_PLAY, 10.0, false, &event_cdda_delay_play);
 619                                 //set_cdda_status(CDDA_PLAYING);
 620                         } else {
 621                                 set_cdda_status(CDDA_OFF);
 622                                 cdda_start_frame = toc_table[track_num].index0;;
 623                                 cdda_end_frame = toc_table[track_num].index1; // end of disc
 624                                 double seek_time = get_seek_time(cdda_start_frame);
 625                                 //double seek_time = 10.0;
 626                                 get_track_by_track_num(track_num); // END OF DISC
 627
 628                                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 629 //                              if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 630 //                              register_event(this, EVENT_CDDA_DELAY_STOP, (seek_time > 10.0) ? seek_time : 10.0, false, &event_cdda_delay_play);
 631                                 if(is_device_ready()) {
 632                                         if(event_delay_interrupt >= 0) {
 633                                                 cancel_event(this, event_delay_interrupt);
 634                                                 event_delay_interrupt = -1;
 635                                         }
 636                                         register_event(this, EVENT_CDROM_DELAY_INTERRUPT_ON, (seek_time > 10.0) ? (seek_time + 10.0) : (10.0 + 10.0), false, &event_delay_interrupt);
 637                                 }
 638                                 set_phase_delay(SCSI_PHASE_STATUS, (seek_time > 10.0) ? (seek_time + 10.0) : (10.0 + 10.0));
 639                                 return;
 640                         }
 641                 }
 642                 // change to status phase
 643                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 644                 if(is_device_ready()) {
 645                         write_signals(&outputs_done, 0xffffffff);
 646                         //if(event_delay_interrupt >= 0) cancel_event(this, event_delay_interrupt);
 647                         //register_event(this, EVENT_CDROM_DELAY_INTERRUPT_ON, 10.0, false, &event_delay_interrupt);
 648
 649                 }
 650                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 651                 return;
 652
 653         case 0xda:
 654                 #ifdef _SCSI_DEBUG_LOG
 655                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Pause\n"), scsi_id);
 656                 #endif
 657                 if(is_device_ready()) {
 658                         if(cdda_status == CDDA_PLAYING) {
 659                                 set_cdda_status(CDDA_PAUSED);
 660                         }
 661                 }
 662                 // change to status phase
 663                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 664                 if(is_device_ready()) write_signals(&outputs_done, 0xffffffff);
 665                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 666                 return;
 667
 668         case 0xdd:
 669                 #ifdef _SCSI_DEBUG_LOG
 670                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Read Sub Channel Q\n"), scsi_id);
 671                 #endif
 672                 if(is_device_ready()) {
 673                         // create track info
 674                         uint32_t frame = (cdda_status == CDDA_OFF) ? cdda_start_frame : cdda_playing_frame;
 675                         uint32_t msf_abs = lba_to_msf_alt(frame);
 676                         int track;
 677                         double delay_time = 10.0;
 678                         track = current_track;
 679                         if((cdda_status == CDDA_OFF) && (toc_table[track].is_audio)) { // OK? (or force ERROR) 20181120 K.O
 680                                 //set_cdda_status(CDDA_PLAYING);
 681                                 delay_time = get_seek_time(frame);
 682                                 //delay_time = 10.0;
 683                                 if(event_cdda_delay_play >= 0) {
 684                                         cancel_event(this, event_cdda_delay_play);
 685                                         event_cdda_delay_play = -1;
 686                                 }
 687                                 register_event(this, EVENT_CDDA_DELAY_PLAY, delay_time, false, &event_cdda_delay_play);
 688                         }
 689                         uint32_t msf_rel = lba_to_msf_alt(frame - toc_table[track].index0);
 690                         buffer->clear();
 691                         buffer->write((cdda_status == CDDA_PLAYING) ? 0x00 : (cdda_status == CDDA_PAUSED) ? 0x02 : 0x03);
 692                         buffer->write(0x01 | (toc_table[track].is_audio ? 0x00 : 0x40));
 693                         buffer->write(TO_BCD(track + 1));               // Track
 694                         buffer->write(0x01);                            // Index
 695                         buffer->write(TO_BCD((msf_rel >> 16) & 0xff));  // M (relative)
 696                         buffer->write(TO_BCD((msf_rel >>  8) & 0xff));  // S (relative)
 697                         buffer->write(TO_BCD((msf_rel >>  0) & 0xff));  // F (relative)
 698                         buffer->write(TO_BCD((msf_abs >> 16) & 0xff));  // M (absolute)
 699                         buffer->write(TO_BCD((msf_abs >>  8) & 0xff));  // S (absolute)
 700                         buffer->write(TO_BCD((msf_abs >>  0) & 0xff));  // F (absolute)
 701                         // transfer length
 702                         remain = buffer->count();
 703                         // set first data
 704                         set_dat(buffer->read());
 705                         // change to data in phase
 706                         set_phase_delay(SCSI_PHASE_DATA_IN, 10.0);
 707                 } else {
 708                         // change to status phase
 709                         set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 710                         set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 711                 }
 712                 return;
 713
 714         case 0xde:
 715                 #ifdef _SCSI_DEBUG_LOG
 716                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Get Dir Info\n"), scsi_id);
 717                 #endif
 718                 if(is_device_ready()) {
 719                         buffer->clear();
 720                 #ifdef _SCSI_DEBUG_LOG
 721                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] CMD=%02x ARG=%02x \n"), scsi_id, command[1], command[2]);
 722                 #endif
 723                         switch(command[1]) {
 724                         case 0x00:      /* Get first and last track numbers */
 725                                 buffer->write(TO_BCD(1));
 726                                 buffer->write(TO_BCD(track_num));
 727                                 break;
 728                         case 0x01:      /* Get total disk size in MSF format */
 729                                 {
 730                                         uint32_t msf = lba_to_msf(toc_table[track_num].index0 + 150);
 731                                         buffer->write((msf >> 16) & 0xff);
 732                                         buffer->write((msf >>  8) & 0xff);
 733                                         buffer->write((msf >>  0) & 0xff);
 734                                 }
 735                                 break;
 736                         case 0x02:      /* Get track information */
 737                                 if(command[2] == 0xaa) {
 738                                         uint32_t msf = lba_to_msf(toc_table[track_num].index0 + 150);
 739                                         buffer->write((msf >> 16) & 0xff);
 740                                         buffer->write((msf >>  8) & 0xff);
 741                                         buffer->write((msf >>  0) & 0xff);
 742                                         buffer->write(0x04); // correct ?
 743                                 } else {
 744                                         int track = max(FROM_BCD(command[2]), 1);
 745                                         uint32_t frame = toc_table[track].index0;
 746                                         // PCE wants the start sector for data tracks to *not* include the pregap
 747                                         if(!toc_table[track].is_audio) {
 748                                                 frame += toc_table[track].pregap;
 749                                         }
 750                                         get_track_by_track_num(track);
 751
 752                                         uint32_t msf = lba_to_msf(toc_table[track].index1 + 150);
 753                                         buffer->write((msf >> 16) & 0xff); // M
 754                                         buffer->write((msf >>  8) & 0xff); // S
 755                                         buffer->write((msf >>  0) & 0xff); // F
 756                                         buffer->write(toc_table[track].is_audio ? 0x00 : 0x04);
 757                                 }
 758                                 break;
 759                         }
 760                         // transfer length
 761                         remain = buffer->count();
 762                         // set first data
 763                         set_dat(buffer->read());
 764                         // change to data in phase
 765                         set_phase_delay(SCSI_PHASE_DATA_IN, 10.0);
 766                 } else {
 767                         // change to status phase
 768                         set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 769                         set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 770                 }
 771                 return;
 772         case 0xff:
 773                 // End of List
 774                 set_dat(SCSI_STATUS_CHKCOND);
 775                 return;
 776         }
 777
 778         // start standard command
 779         SCSI_DEV::start_command();
 780 }
 781
 782 bool SCSI_CDROM::read_buffer(int length)
 783 {
 784         if(!fio_img->IsOpened()) {
 785                 set_sense_code(SCSI_SENSE_NOTREADY);
 786                 return false;
 787         }
 788         uint32_t offset = (uint32_t)(position % 2352);
 789
 790         if(is_cue) {
 791                 // ToDo: Need seek wait.
 792                 #ifdef _CDROM_DEBUG_LOG
 793                         this->out_debug_log(_T("Seek to LBA %d\n"), position / 2352);
 794                 #endif
 795                 if(fio_img->Fseek(((long)position - (long)(toc_table[current_track].lba_offset * 2352)), FILEIO_SEEK_SET) != 0) {
 796                         set_sense_code(SCSI_SENSE_ILLGLBLKADDR); //SCSI_SENSE_SEEKERR
 797                         #ifdef _SCSI_DEBUG_LOG
 798                                 this->out_debug_log(_T("[SCSI_DEV:ID=%d] Error on reading (ILLGLBLKADDR) at line %d\n"), scsi_id, __LINE__);
 799                         #endif
 800                         return false;
 801                 }
 802         } else {
 803                 if(fio_img->Fseek((long)position, FILEIO_SEEK_SET) != 0) {
 804                         set_sense_code(SCSI_SENSE_ILLGLBLKADDR); //SCSI_SENSE_SEEKERR
 805                         #ifdef _SCSI_DEBUG_LOG
 806                                 this->out_debug_log(_T("[SCSI_DEV:ID=%d] Error on reading (ILLGLBLKADDR) at line %d\n"), scsi_id, __LINE__);
 807                         #endif
 808                         return false;
 809                 }
 810         }
 811         while(length > 0) {
 812                 uint8_t tmp_buffer[SCSI_BUFFER_SIZE];
 813                 int tmp_length = min(length, (int)sizeof(tmp_buffer));
 814
 815                 if(fio_img->Fread(tmp_buffer, tmp_length, 1) != 1) {
 816                         #ifdef _SCSI_DEBUG_LOG
 817                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Error on reading (ILLGLBLKADDR) at line %d\n"), scsi_id, __LINE__);
 818                         #endif
 819
 820                         set_sense_code(SCSI_SENSE_ILLGLBLKADDR); //SCSI_SENSE_NORECORDFND
 821                         return false;
 822                 }
 823                 for(int i = 0; i < tmp_length && length > 0; i++) {
 824                         if(offset >= 16 && offset < 16 + 2048) {
 825                                 int value = tmp_buffer[i];
 826                                 buffer->write(value);
 827                                 length--;
 828                         }
 829                         position++;
 830                         offset = (offset + 1) % 2352;
 831                 }
 832                 access = true;
 833         }
 834         // Is This right? 20181120 K.O
 835         //write_signals(&outputs_done, 0xffffffff); // Maybe don't need "DONE SIGNAL" with reading DATA TRACK. 20181207 K.O
 836         set_sense_code(SCSI_SENSE_NOSENSE);
 837         return true;
 838 }
 839
 840 int get_frames_from_msf(const char *string)
 841 {
 842         const char *ptr = string;
 843         int frames[3] = {0};
 844         int index = 0;
 845
 846         while(1) {
 847                 if(*ptr >= '0' && *ptr <= '9') {
 848                         frames[index] = frames[index] * 10 + (*ptr - '0');
 849                 } else if(*ptr == ':') {
 850                         if(++index == 3) {
 851                                 // abnormal data
 852                                 break;
 853                         }
 854                 } else if(*ptr == '\r' || *ptr == '\n' || *ptr == '\0') {
 855                         // end of line
 856                         break;
 857                 }
 858                 ptr++;
 859         }
 860         return (frames[0] * 60 + frames[1]) * 75 + frames[2]; // 75frames/sec
 861 }
 862
 863 int hexatoi(const char *string)
 864 {
 865         const char *ptr = string;
 866         int value = 0;
 867
 868         while(1) {
 869                 if(*ptr >= '0' && *ptr <= '9') {
 870                         value = value * 16 + (*ptr - '0');
 871                 } else if(*ptr >= 'a' && *ptr <= 'f') {
 872                         value = value * 16 + (*ptr - 'a' + 10);
 873                 } else if(*ptr >= 'A' && *ptr <= 'F') {
 874                         value = value * 16 + (*ptr - 'A' + 10);
 875                 } else if(*ptr == '\r' || *ptr == '\n' || *ptr == '\0') {
 876                         break;
 877                 }
 878                 ptr++;
 879         }
 880         return value;
 881 }
 882
 883 #include <string>
 884
 885 bool SCSI_CDROM::open_cue_file(const _TCHAR* file_path)
 886 {
 887         std::string line_buf;
 888         std::string line_buf_shadow;
 889         std::string image_tmp_data_path;
 890
 891         _TCHAR full_path_cue[_MAX_PATH];
 892         size_t ptr;
 893         int line_count = 0;
 894         int slen;
 895         int nr_current_track = 0;
 896         FILEIO* fio = new FILEIO();
 897         if(fio == NULL) return false;
 898
 899         memset(full_path_cue, 0x00, sizeof(full_path_cue));
 900         image_tmp_data_path.clear();
 901
 902         get_long_full_path_name(file_path, full_path_cue, sizeof(full_path_cue));
 903
 904         _TCHAR *parent_dir = get_parent_dir(full_path_cue);
 905
 906         size_t _arg1_ptr;
 907         size_t _arg2_ptr;
 908         size_t _arg2_ptr_s;
 909         size_t _arg3_ptr;
 910         size_t _arg3_ptr_s;
 911
 912         std::string _arg1;
 913         std::string _arg2;
 914         std::string _arg3;
 915
 916         if(fio->Fopen(file_path, FILEIO_READ_ASCII)) { // ToDo: Support not ASCII cue file (i.e. SJIS/UTF8).20181118 K.O
 917                 line_buf.clear();
 918                 for(int i = 0; i < 100; i++) {
 919                         memset(&(track_data_path[i][0]), 0x00, _MAX_PATH * sizeof(_TCHAR));
 920                 }
 921                 int _c;
 922                 bool is_eof = false;
 923                 int sptr = 0;
 924                 while(1) {
 925                         line_buf.clear();
 926                         int _np = 0;
 927                         _c = EOF;
 928                         do {
 929                                 _c = fio->Fgetc();
 930                                 if((_c == '\0') || (_c == '\n') || (_c == EOF)) break;;
 931                                 if(_c != '\r') line_buf.push_back((char)_c);
 932                         } while(1);
 933                         if(_c == EOF) is_eof = true;
 934                         slen = (int)line_buf.length();
 935                         if(slen <= 0) goto _n_continue;
 936                         // Trim head of Space or TAB
 937                         ptr = 0;
 938                         sptr = 0;
 939                         // Tokenize
 940                         _arg1.clear();
 941                         _arg2.clear();
 942                         _arg3.clear();
 943
 944                         ptr = line_buf.find_first_not_of((const char*)" \t");
 945                         if(ptr == std::string::npos) {
 946                                 goto _n_continue;
 947                         }
 948                         // Token1
 949                         line_buf_shadow = line_buf.substr(ptr);
 950
 951                         _arg1_ptr = line_buf_shadow.find_first_of((const char *)" \t");
 952                         _arg1 = line_buf_shadow.substr(0, _arg1_ptr);
 953                         _arg2 = line_buf_shadow.substr(_arg1_ptr);
 954                         std::transform(_arg1.begin(), _arg1.end(), _arg1.begin(),
 955                                                    [](unsigned char c) -> unsigned char{ return std::toupper(c); });
 956
 957                         _arg2_ptr = _arg2.find_first_not_of((const char *)" \t");
 958
 959                         if(_arg2_ptr != std::string::npos) {
 960                                 _arg2 = _arg2.substr(_arg2_ptr);
 961                         }
 962
 963                         if(_arg1 == "REM") {
 964                                 // REM
 965                                 goto _n_continue;
 966                         } else if(_arg1 == "FILE") {
 967                                 _arg2_ptr = _arg2.find_first_of((const char *)"\"") + 1;
 968                                 if(_arg2_ptr == std::string::npos) goto _n_continue;
 969
 970                                 _arg2 = _arg2.substr(_arg2_ptr);
 971                                 _arg3_ptr = _arg2.find_first_of((const char *)"\"");
 972                                 if(_arg3_ptr == std::string::npos) goto _n_continue;
 973                                 _arg2 = _arg2.substr(0, _arg3_ptr);
 974
 975                                 image_tmp_data_path.clear();
 976                                 image_tmp_data_path = std::string(parent_dir);
 977                                 image_tmp_data_path.append(_arg2);
 978
 979                                 #ifdef _CDROM_DEBUG_LOG
 980                                         this->out_debug_log(_T("**FILE %s\n"), image_tmp_data_path.c_str());
 981                                 #endif
 982                                 goto _n_continue; // ToDo: Check ARG2 (BINARY etc..) 20181118 K.O
 983                         } else if(_arg1 == "TRACK") {
 984                                 _arg2_ptr_s = _arg2.find_first_of((const char *)" \t");
 985
 986                                 _arg3 = _arg2.substr(_arg2_ptr_s);
 987                                 _arg2 = _arg2.substr(0, _arg2_ptr_s);
 988                                 _arg3_ptr = _arg3.find_first_not_of((const char *)" \t");
 989                                 int _nr_num = atoi(_arg2.c_str());
 990
 991                                 // Set image file
 992                                 if((_nr_num > 0) && (_nr_num < 100) && (_arg3_ptr != std::string::npos)) {
 993                                         nr_current_track = _nr_num;
 994                                         _arg3 = _arg3.substr(_arg3_ptr);
 995
 996                                         memset(track_data_path[_nr_num - 1], 0x00, sizeof(_TCHAR) * _MAX_PATH);
 997                                         strncpy((char *)(track_data_path[_nr_num - 1]), image_tmp_data_path.c_str(), _MAX_PATH);
 998
 999                                         _arg3_ptr_s = _arg3.find_first_of((const char *)" \t\n");
1000                                         _arg3.substr(0, _arg3_ptr_s);
1001
1002                                         std::transform(_arg3.begin(), _arg3.end(), _arg3.begin(),
1003                                                                    [](unsigned char c) -> unsigned char{ return std::toupper(c); });
1004
1005                                         toc_table[nr_current_track].is_audio = false;
1006                                         toc_table[nr_current_track].index0 = 0;
1007                                         toc_table[nr_current_track].index1 = 0;
1008                                         toc_table[nr_current_track].pregap = 0;
1009
1010                                         if(_arg3.compare("AUDIO") == 0) {
1011                                                 toc_table[nr_current_track].is_audio = true;
1012                                         } else if(_arg3.compare("MODE1/2352") == 0) {
1013                                                 toc_table[nr_current_track].is_audio = false;
1014                                         } else {
1015                                                 // ToDo:  another type
1016                                         }
1017                                         if(track_num < (_nr_num + 1)) track_num = _nr_num + 1;
1018                                 } else {
1019                                         // ToDo: 20181118 K.Ohta
1020                                         nr_current_track = 0;
1021                                 }
1022                                 goto _n_continue;
1023                         } else if(_arg1 == "INDEX") {
1024
1025                                 if((nr_current_track > 0) && (nr_current_track < 100)) {
1026                                         _arg2_ptr_s = _arg2.find_first_of((const char *)" \t");
1027                                         if(_arg2_ptr_s == std::string::npos) goto _n_continue;
1028
1029                                         _arg3 = _arg2.substr(_arg2_ptr_s);
1030                                         _arg2 = _arg2.substr(0, _arg2_ptr_s);
1031                                         _arg3_ptr = _arg3.find_first_not_of((const char *)" \t");
1032                                         if(_arg3_ptr == std::string::npos) goto _n_continue;
1033
1034                                         _arg3 = _arg3.substr(_arg3_ptr);
1035                                         _arg3_ptr_s = _arg3.find_first_of((const char *)" \t");
1036                                         _arg3.substr(0, _arg3_ptr_s);
1037                                         int index_type = atoi(_arg2.c_str());
1038
1039                                         switch(index_type) {
1040                                         case 0:
1041                                                 toc_table[nr_current_track].index0 = get_frames_from_msf(_arg3.c_str());
1042                                                 break;
1043                                         case 1:
1044                                                 toc_table[nr_current_track].index1 = get_frames_from_msf(_arg3.c_str());
1045                                                 break;
1046                                         default:
1047                                                 break;
1048                                         }
1049                                         goto _n_continue;
1050                                 } else {
1051                                         goto _n_continue;
1052                                 }
1053                         } else if(_arg1 == "PREGAP") {
1054                                 if((nr_current_track > 0) && (nr_current_track < 100)) {
1055                                         _arg2_ptr_s = _arg2.find_first_of((const char *)" \t");
1056                                         _arg2 = _arg2.substr(0, _arg2_ptr_s - 1);
1057
1058                                         toc_table[nr_current_track].pregap = get_frames_from_msf(_arg2.c_str());
1059                                         goto _n_continue;
1060                                 } else {
1061                                         goto _n_continue;
1062                                 }
1063                         }
1064                 _n_continue:
1065                         if(is_eof) break;
1066                         line_buf.clear();
1067                         continue;
1068                 }
1069                 // Finish
1070                 max_logical_block = 0;
1071                 if(track_num > 0) {
1072                         toc_table[0].lba_offset = 0;
1073                         toc_table[0].lba_size = 0;
1074                         toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1075                         // P1: Calc
1076                         int _n = 0;
1077                         for(int i = 1; i < track_num; i++) {
1078
1079                                 if(fio_img->IsOpened()) {
1080                                         fio_img->Fclose();
1081                                 }
1082                                 if(toc_table[i].index1 != 0) {
1083                                         toc_table[i].index0 = toc_table[i].index0 + max_logical_block;
1084                                         toc_table[i].index1 = toc_table[i].index1 + max_logical_block;
1085                                         if(toc_table[i].index0 != max_logical_block) {
1086                                                 if(toc_table[i].pregap == 0) {
1087                                                         toc_table[i].pregap = toc_table[i].index1 - toc_table[i].index0;
1088                                                 }
1089                                         }
1090                                 } else {
1091                                         toc_table[i].index1 = toc_table[i].index1 + max_logical_block;
1092                                         if(toc_table[i].index0 == 0) {
1093                                                 toc_table[i].index0 = toc_table[i].index1 - toc_table[i].pregap;
1094                                         } else {
1095                                                 toc_table[i].index0 = toc_table[i].index0 + max_logical_block;
1096                                                 if(toc_table[i].pregap == 0) {
1097                                                         toc_table[i].pregap = toc_table[i].index1 - toc_table[i].index0;
1098                                                 }
1099                                         }
1100                                 }
1101                                 // Even...
1102                                 if(toc_table[i].pregap <= 0) {
1103                                         toc_table[i].pregap = 150; // Default PREGAP must be 2Sec. From OoTake.(Only with PCE? Not with FM-Towns?)
1104                                 }
1105
1106                                 _n = 0;
1107                                 if(strlen(track_data_path[i - 1]) > 0) {
1108                                         if(fio_img->Fopen(track_data_path[i - 1], FILEIO_READ_BINARY)) {
1109                                                 if((_n = fio_img->FileLength() / 2352) > 0) {
1110                                                         max_logical_block += _n;
1111                                                 } else {
1112                                                         _n = 0;
1113                                                 }
1114                                                 fio_img->Fclose();
1115                                         }
1116                                 }
1117                                 toc_table[i].lba_size = _n;
1118                                 toc_table[i].lba_offset = max_logical_block - _n;
1119
1120
1121                                 //#ifdef _CDROM_DEBUG_LOG
1122                                 this->out_debug_log(_T("TRACK#%02d TYPE=%s PREGAP=%d INDEX0=%d INDEX1=%d LBA_SIZE=%d LBA_OFFSET=%d PATH=%s\n"),
1123                                                                         i, (toc_table[i].is_audio) ? _T("AUDIO") : _T("MODE1/2352"),
1124                                                                         toc_table[i].pregap, toc_table[i].index0, toc_table[i].index1,
1125                                                                         toc_table[i].lba_size, toc_table[i].lba_offset, track_data_path[i - 1]);
1126                                 //#endif
1127                         }
1128                         toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1129 //                      toc_table[track_num].index0 = toc_table[track_num].index1 = max_logical_block;
1130 //                      toc_table[track_num].lba_offset = max_logical_block;
1131 //                      toc_table[track_num].lba_size = 0;
1132
1133                 }
1134                 fio->Fclose();
1135         }
1136         delete fio;
1137
1138         is_cue = false;
1139         if(track_num > 0) is_cue = true;
1140         // Not Cue FILE.
1141         return is_cue;
1142 }
1143
1144 void SCSI_CDROM::open(const _TCHAR* file_path)
1145 {
1146         _TCHAR img_file_path[_MAX_PATH];
1147
1148         close();
1149
1150         if(check_file_extension(file_path, _T(".cue"))) {
1151 #if 1
1152                 is_cue = false;
1153                 current_track = 0;
1154                 open_cue_file(file_path);
1155 #else
1156                 // get image file name
1157                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img"), get_file_path_without_extensiton(file_path));
1158                 if(!FILEIO::IsFileExisting(img_file_path)) {
1159                         my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.bin"), get_file_path_without_extensiton(file_path));
1160                         if(!FILEIO::IsFileExisting(img_file_path)) {
1161                                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.gz"), get_file_path_without_extensiton(file_path));
1162                                 if(!FILEIO::IsFileExisting(img_file_path)) {
1163                                         my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img.gz"), get_file_path_without_extensiton(file_path));
1164                                         if(!FILEIO::IsFileExisting(img_file_path)) {
1165                                                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.bin.gz"), get_file_path_without_extensiton(file_path));
1166                                         }
1167                                 }
1168                         }
1169                 }
1170                 if(fio_img->Fopen(img_file_path, FILEIO_READ_BINARY)) {
1171                         // get image file size
1172                         if((max_logical_block = fio_img->FileLength() / 2352) > 0) {
1173                                 // read cue file
1174                                 FILEIO* fio = new FILEIO();
1175                                 if(fio->Fopen(file_path, FILEIO_READ_BINARY)) {
1176                                         char line[1024], *ptr;
1177                                         int track = -1;
1178                                         while(fio->Fgets(line, 1024) != NULL) {
1179                                                 if(strstr(line, "FILE") != NULL) {
1180                                                         // do nothing
1181                                                 } else if((ptr = strstr(line, "TRACK")) != NULL) {
1182                                                         // "TRACK 01 AUDIO"
1183                                                         // "TRACK 02 MODE1/2352"
1184                                                         ptr += 6;
1185                                                         while(*ptr == ' ' || *ptr == 0x09) {
1186                                                                 ptr++;
1187                                                         }
1188                                                         if((track = atoi(ptr)) > 0) {
1189                                                                 if(track > track_num) {
1190                                                                         track_num = track;
1191                                                                 }
1192                                                                 toc_table[track - 1].is_audio = (strstr(line, "AUDIO") != NULL);
1193                                                         }
1194                                                 } else if((ptr = strstr(line, "PREGAP")) != NULL) {
1195                                                         // "PREGAP 00:02:00"
1196                                                         if(track > 0) {
1197                                                                 toc_table[track - 1].pregap = get_frames_from_msf(ptr + 7);
1198                                                         }
1199                                                 } else if((ptr = strstr(line, "INDEX")) != NULL) {
1200                                                         // "INDEX 01 00:00:00"
1201                                                         if(track > 0) {
1202                                                                 ptr += 6;
1203                                                                 while(*ptr == ' ' || *ptr == 0x09) {
1204                                                                         ptr++;
1205                                                                 }
1206                                                                 int num = atoi(ptr);
1207                                                                 while(*ptr >= '0' && *ptr <= '9') {
1208                                                                         ptr++;
1209                                                                 }
1210                                                                 if(num == 0) {
1211                                                                         toc_table[track - 1].index0 = get_frames_from_msf(ptr);
1212                                                                 } else if(num == 1) {
1213                                                                         toc_table[track - 1].index1 = get_frames_from_msf(ptr);
1214                                                                 }
1215                                                         }
1216                                                 }
1217                                         }
1218                                         if(track_num != 0) {
1219                                                 for(int i = 1; i < track_num; i++) {
1220                                                         if(toc_table[i].index0 == 0) {
1221                                                                 toc_table[i].index0 = toc_table[i].index1 - toc_table[i].pregap;
1222                                                         } else if(toc_table[i].pregap == 0) {
1223                                                                 toc_table[i].pregap = toc_table[i].index1 - toc_table[i].index0;
1224                                                         }
1225                                                 }
1226                                                 toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1227                                                 toc_table[track_num].index0 = toc_table[track_num].index1 = max_logical_block;
1228                                         } else {
1229                                                 fio_img->Fclose();
1230                                         }
1231                                         fio->Fclose();
1232                                 }
1233                                 delete fio;
1234                         }
1235                 }
1236 #endif
1237         } else if(check_file_extension(file_path, _T(".ccd"))) {
1238                 // get image file name
1239                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img"), get_file_path_without_extensiton(file_path));
1240                 if(!FILEIO::IsFileExisting(img_file_path)) {
1241                         my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.gz"), get_file_path_without_extensiton(file_path));
1242                         if(!FILEIO::IsFileExisting(img_file_path)) {
1243                                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img.gz"), get_file_path_without_extensiton(file_path));
1244                         }
1245                 }
1246                 if(fio_img->Fopen(img_file_path, FILEIO_READ_BINARY)) {
1247                         is_cue = false;
1248                         current_track = 0;
1249                         // get image file size
1250                         if((max_logical_block = fio_img->FileLength() / 2352) > 0) {
1251                                 // read cue file
1252                                 FILEIO* fio = new FILEIO();
1253                                 if(fio->Fopen(file_path, FILEIO_READ_BINARY)) {
1254                                         char line[1024], *ptr;
1255                                         int track = -1;
1256                                         while(fio->Fgets(line, 1024) != NULL) {
1257                                                 if(strstr(line, "[Session ") != NULL) {
1258                                                         track = -1;
1259                                                 } else if((ptr = strstr(line, "Point=0x")) != NULL) {
1260                                                         if((track = hexatoi(ptr + 8)) > 0 && track < 0xa0) {
1261                                                                 if(track > track_num) {
1262                                                                         track_num = track;
1263                                                                 }
1264                                                         }
1265                                                 } else if((ptr = strstr(line, "Control=0x")) != NULL) {
1266                                                         if(track > 0 && track < 0xa0) {
1267                                                                 toc_table[track - 1].is_audio = (hexatoi(ptr + 10) != 4);
1268                                                         }
1269                                                 } else if((ptr = strstr(line, "ALBA=-")) != NULL) {
1270                                                         if(track > 0 && track < 0xa0) {
1271                                                                 toc_table[track - 1].pregap = atoi(ptr + 6);
1272                                                         }
1273                                                 } else if((ptr = strstr(line, "PLBA=")) != NULL) {
1274                                                         if(track > 0 && track < 0xa0) {
1275                                                                 toc_table[track - 1].index1 = atoi(ptr + 5);
1276                                                         }
1277                                                 }
1278                                         }
1279                                         if(track_num != 0) {
1280                                                 toc_table[0].lba_offset = 0;
1281                                                 toc_table[0].pregap = 0;
1282                                                 for(int i = 1; i < track_num; i++) {
1283                                                         toc_table[i].index0 = toc_table[i].index1 - toc_table[i].pregap;
1284                                                         toc_table[i].lba_offset = toc_table[i].pregap;
1285                                                         toc_table[i - 1].lba_size = toc_table[i].pregap - toc_table[i - 1].pregap;
1286                                                 }
1287                                                 toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1288                                                 toc_table[track_num].index0 = toc_table[track_num].index1 = max_logical_block;
1289                                                 if(track_num > 0) {
1290                                                         toc_table[track_num].lba_size = max_logical_block - toc_table[track_num - 1].lba_offset;
1291                                                 } else {
1292                                                         toc_table[track_num].lba_size = 0;
1293                                                 }
1294                                         } else {
1295                                                 fio_img->Fclose();
1296                                         }
1297                                         fio->Fclose();
1298                                 }
1299                                 delete fio;
1300                         }
1301                 }
1302         }
1303 #ifdef _SCSI_DEBUG_LOG
1304         if(mounted()) {
1305                 for(int i = 0; i < track_num + 1; i++) {
1306                         uint32_t idx0_msf = lba_to_msf(toc_table[i].index0);
1307                         uint32_t idx1_msf = lba_to_msf(toc_table[i].index1);
1308                         uint32_t pgap_msf = lba_to_msf(toc_table[i].pregap);
1309                         this->out_debug_log(_T("Track%02d: Index0=%02x:%02x:%02x Index1=%02x:%02x:%02x PreGpap=%02x:%02x:%02x\n"), i + 1,
1310                         (idx0_msf >> 16) & 0xff, (idx0_msf >> 8) & 0xff, idx0_msf & 0xff,
1311                         (idx1_msf >> 16) & 0xff, (idx1_msf >> 8) & 0xff, idx1_msf & 0xff,
1312                         (pgap_msf >> 16) & 0xff, (pgap_msf >> 8) & 0xff, pgap_msf & 0xff);
1313                 }
1314         }
1315 #endif
1316 }
1317
1318 void SCSI_CDROM::close()
1319 {
1320         if(fio_img->IsOpened()) {
1321                 fio_img->Fclose();
1322         }
1323         memset(toc_table, 0, sizeof(toc_table));
1324         track_num = 0;
1325         is_cue = false;
1326         current_track = 0;
1327         set_cdda_status(CDDA_OFF);
1328 }
1329
1330 bool SCSI_CDROM::mounted()
1331 {
1332         if(is_cue) return true;
1333         return fio_img->IsOpened();
1334 }
1335
1336 bool SCSI_CDROM::accessed()
1337 {
1338         bool value = access;
1339         access = false;
1340         return value;
1341 }
1342
1343 void SCSI_CDROM::mix(int32_t* buffer, int cnt)
1344 {
1345         if(cdda_status == CDDA_PLAYING) {
1346                 if(mix_loop_num != 0) {
1347                         int tmp_l = 0, tmp_r = 0;
1348                         for(int i = 0; i < mix_loop_num; i++) {
1349                                 event_callback(EVENT_CDDA, 0);
1350                                 tmp_l += cdda_sample_l;
1351                                 tmp_r += cdda_sample_r;
1352                         }
1353                         cdda_sample_l = tmp_l / mix_loop_num;
1354                         cdda_sample_r = tmp_r / mix_loop_num;
1355                 }
1356                 int32_t val_l = apply_volume(apply_volume(cdda_sample_l, volume_m), volume_l);
1357                 int32_t val_r = apply_volume(apply_volume(cdda_sample_r, volume_m), volume_r);
1358
1359                 for(int i = 0; i < cnt; i++) {
1360                         *buffer++ += val_l; // L
1361                         *buffer++ += val_r; // R
1362                 }
1363         }
1364 }
1365
1366 void SCSI_CDROM::set_volume(int ch, int decibel_l, int decibel_r)
1367 {
1368         volume_l = decibel_to_volume(decibel_l + 3.0);
1369         volume_r = decibel_to_volume(decibel_r + 3.0);
1370 }
1371
1372 void SCSI_CDROM::set_volume(int volume)
1373 {
1374         volume_m = (int)(1024.0 * (max(0, min(100, volume)) / 100.0));
1375 }
1376
1377 #define STATE_VERSION   4
1378
1379 // Q: If loading state when using another (saved) image? 20181013 K.O
1380 //    May need close() and open() (or ...?).
1381 bool SCSI_CDROM::process_state(FILEIO* state_fio, bool loading)
1382 {
1383         uint32_t offset = 0;
1384
1385         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
1386                 return false;
1387         }
1388         if(!state_fio->StateCheckInt32(this_device_id)) {
1389                 return false;
1390         }
1391         state_fio->StateValue(cdda_start_frame);
1392         state_fio->StateValue(cdda_end_frame);
1393         state_fio->StateValue(cdda_playing_frame);
1394         state_fio->StateValue(cdda_status);
1395         state_fio->StateValue(cdda_repeat);
1396         state_fio->StateValue(cdda_interrupt);
1397         state_fio->StateArray(cdda_buffer, sizeof(cdda_buffer), 1);
1398         state_fio->StateValue(cdda_buffer_ptr);
1399         state_fio->StateValue(cdda_sample_l);
1400         state_fio->StateValue(cdda_sample_r);
1401         state_fio->StateValue(event_cdda);
1402         state_fio->StateValue(event_cdda_delay_play);
1403         state_fio->StateValue(event_delay_interrupt);
1404         state_fio->StateValue(read_sectors);
1405 //      state_fio->StateValue(mix_loop_num);
1406         state_fio->StateValue(read_mode);
1407         state_fio->StateValue(volume_m);
1408         if(loading) {
1409                 offset = state_fio->FgetUint32_LE();
1410         } else {
1411                 if(fio_img->IsOpened()) {
1412                         offset = fio_img->Ftell();
1413                 }
1414                 state_fio->FputUint32_LE(offset);
1415         }
1416
1417         state_fio->StateValue(is_cue);
1418         state_fio->StateValue(current_track);
1419         // ToDo: Re-Open Image.20181118 K.O
1420         // post process
1421         if(loading && fio_img->IsOpened()) {
1422                 fio_img->Fseek(offset, FILEIO_SEEK_SET);
1423         }
1424         return SCSI_DEV::process_state(state_fio, loading);
1425 }