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 #define _SCSI_DEBUG_LOG
  20 #define _CDROM_DEBUG_LOG
  21 // 0-99 is reserved for SCSI_DEV class
  22 #define EVENT_CDDA                                              100
  23 #define EVENT_CDDA_DELAY_PLAY                   101
  24 #define EVENT_CDROM_SEEK_SCSI                   102
  25 #define EVENT_CDROM_DELAY_INTERRUPT_ON  103
  26 #define EVENT_CDROM_DELAY_INTERRUPT_OFF 104
  27 #define EVENT_CDDA_DELAY_STOP                   105
  28
  29 void SCSI_CDROM::initialize()
  30 {
  31         SCSI_DEV::initialize();
  32         fio_img = new FILEIO();
  33
  34         if(44100 % emu->get_sound_rate() == 0) {
  35                 mix_loop_num = 44100 / emu->get_sound_rate();
  36         } else {
  37                 mix_loop_num = 0;
  38         }
  39         event_cdda = -1;
  40         event_cdda_delay_play = -1;
  41         event_delay_interrupt = -1;
  42         cdda_status = CDDA_OFF;
  43         is_cue = false;
  44         current_track = 0;
  45         read_sectors = 0;
  46         for(int i = 0; i < 99; i++) {
  47                 memset(track_data_path[i], 0x00, _MAX_PATH * sizeof(_TCHAR));
  48         }
  49 }
  50
  51 void SCSI_CDROM::release()
  52 {
  53         if(fio_img->IsOpened()) {
  54                 fio_img->Fclose();
  55         }
  56         delete fio_img;
  57         SCSI_DEV::release();
  58 }
  59
  60 void SCSI_CDROM::reset()
  61 {
  62         touch_sound();
  63         if(event_delay_interrupt != -1) cancel_event(this, event_delay_interrupt);
  64         if(event_cdda_delay_play != -1) cancel_event(this, event_cdda_delay_play);
  65         if(event_cdda != -1) cancel_event(this, event_cdda);
  66         event_cdda = -1;
  67         event_cdda_delay_play = -1;
  68         event_delay_interrupt = -1;
  69         SCSI_DEV::reset();
  70         set_cdda_status(CDDA_OFF);
  71         read_sectors = 0;
  72         // Q: Does not seek to track 0? 20181118 K.O
  73         //current_track = 0;
  74
  75 }
  76
  77 uint32_t SCSI_CDROM::read_signal(int id)
  78 {
  79         switch(id) {
  80         case SIG_SCSI_CDROM_PLAYING:
  81                 return (cdda_status == CDDA_PLAYING && cdda_interrupt) ? 0xffffffff : 0;
  82
  83         case SIG_SCSI_CDROM_SAMPLE_L:
  84                 return (uint32_t)abs(cdda_sample_l);
  85
  86         case SIG_SCSI_CDROM_SAMPLE_R:
  87                 return (uint32_t)abs(cdda_sample_r);
  88         }
  89         return SCSI_DEV::read_signal(id);
  90 }
  91
  92 void SCSI_CDROM::event_callback(int event_id, int err)
  93 {
  94         switch (event_id) {
  95         case EVENT_CDROM_DELAY_INTERRUPT_ON:
  96                 write_signals(&outputs_done, 0xffffffff);
  97                 event_delay_interrupt = -1;
  98                 break;
  99         case EVENT_CDROM_DELAY_INTERRUPT_OFF:
 100                 write_signals(&outputs_done, 0x00000000);
 101                 event_delay_interrupt = -1;
 102                 break;
 103         case EVENT_CDDA_DELAY_PLAY:
 104                 if(cdda_status != CDDA_PLAYING) {
 105                         set_cdda_status(CDDA_PLAYING);
 106                 }
 107                 event_cdda_delay_play = -1;
 108                 break;
 109         case EVENT_CDROM_SEEK_SCSI:
 110                 seek_time = 10.0;
 111                 event_cdda_delay_play = -1;
 112                 SCSI_DEV::start_command();
 113                 break;
 114         case EVENT_CDDA:
 115                 if(event_cdda_delay_play > -1) return; // WAIT for SEEK COMPLETED
 116                 // read 16bit 2ch samples in the cd-da buffer, called 44100 times/sec
 117
 118                 cdda_sample_l = (int)(int16_t)(cdda_buffer[cdda_buffer_ptr + 0] + cdda_buffer[cdda_buffer_ptr + 1] * 0x100);
 119                 cdda_sample_r = (int)(int16_t)(cdda_buffer[cdda_buffer_ptr + 2] + cdda_buffer[cdda_buffer_ptr + 3] * 0x100);
 120                 // ToDo: CLEAR IRQ Line (for PCE)
 121                 if((cdda_buffer_ptr += 4) % 2352 == 0) {
 122                         // one frame finished
 123                         if(++cdda_playing_frame == cdda_end_frame) {
 124                                 // reached to end frame
 125                                 #ifdef _CDROM_DEBUG_LOG
 126                                 this->out_debug_log(_T("Reaches to the end of track.(FRAME %d). START_FRAME=%d END_FRAME=%d REPEAT=%s INTERRUPT=%s\n"),
 127                                                                         cdda_playing_frame, cdda_start_frame, cdda_end_frame,
 128                                                                         (cdda_repeat) ? _T("YES") : _T("NO"), (cdda_interrupt) ? _T("YES") : _T("NO"));
 129                                 #endif
 130                                 if(cdda_repeat) {
 131                                         // reload buffer
 132                                         if(is_cue) {
 133                                                 fio_img->Fclose();
 134                                                 //current_track = 0;
 135                                                 //int trk = get_track(cdda_start_frame);
 136                                                 int trk = current_track;
 137                                                 fio_img->Fseek((cdda_start_frame - toc_table[trk].lba_offset) * 2352, FILEIO_SEEK_SET);
 138                                         } else {
 139                                                 fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 140                                         }
 141                                         read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t) , array_length(cdda_buffer) / 2352);
 142                                         cdda_buffer_ptr = 0;
 143                                         cdda_playing_frame = cdda_start_frame;
 144                                         access = true;
 145                                 } else {
 146                                         // Stop
 147                                         //if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 148                                         set_cdda_status(CDDA_OFF);
 149                                         //register_event(this, EVENT_CDDA_DELAY_STOP, 1000.0, false, &event_cdda_delay_play);
 150                                 }
 151                         } else if((cdda_buffer_ptr % 2352) == 0) {
 152                                 // refresh buffer
 153                                 read_sectors--;
 154                                 if(read_sectors <= 0) {
 155                                         read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 156                                         cdda_buffer_ptr = 0;
 157                                         access = true;
 158                                 } else {
 159                                 }
 160                         }
 161                 }
 162                 break;
 163         case EVENT_CDDA_DELAY_STOP:
 164                 if(cdda_interrupt) {
 165                         write_signals(&outputs_done, 0xffffffff);
 166                 }
 167                 set_cdda_status(CDDA_OFF);
 168                 event_cdda_delay_play = -1;
 169                 break;
 170         default:
 171                 SCSI_DEV::event_callback(event_id, err);
 172                 break;
 173         }
 174 }
 175
 176 void SCSI_CDROM::set_cdda_status(uint8_t status)
 177 {
 178         if(status == CDDA_PLAYING) {
 179                 if(mix_loop_num == 0) {
 180                         if(event_cdda == -1) {
 181                                 register_event(this, EVENT_CDDA, 1000000.0 / 44100.0, true, &event_cdda);
 182                         }
 183                 }
 184                 if(cdda_status != CDDA_PLAYING) {
 185                         //// Notify to release bus.
 186                         write_signals(&outputs_done, 0x00000000);
 187                         if(cdda_status == CDDA_OFF) {
 188                                 //get_track_by_track_num(current_track); // Re-Play
 189                                 //memset(cdda_buffer, 0x00, sizeof(cdda_buffer));
 190                                 cdda_playing_frame = cdda_start_frame;
 191                                 get_track(cdda_playing_frame);
 192                                 cdda_buffer_ptr = 0;
 193                         } else if(cdda_status == CDDA_PAUSED) {
 194                                 // Unpause
 195                                 access = true;
 196                         }
 197                         touch_sound();
 198                         set_realtime_render(this, true);
 199                         #ifdef _CDROM_DEBUG_LOG
 200                                 this->out_debug_log(_T("Play CDDA from %s.\n"), (cdda_status == CDDA_PAUSED) ? _T("PAUSED") : _T("STOPPED"));
 201                         #endif
 202                 }
 203         } else {
 204                 if(event_cdda != -1) {
 205                         cancel_event(this, event_cdda);
 206                         event_cdda = -1;
 207                 }
 208                 if(cdda_status == CDDA_PLAYING) {
 209                         // Notify to release bus.
 210                         write_signals(&outputs_done, 0x00000000);
 211                         //if(event_delay_interrupt >= 0) cancel_event(this, event_delay_interrupt);
 212                         //register_event(this, EVENT_CDROM_DELAY_INTERRUPT_OFF, 1.0e6 / (44100.0 * 2352), false, &event_delay_interrupt);
 213                         if(status == CDDA_OFF) {
 214                                 memset(cdda_buffer, 0x00, sizeof(cdda_buffer));
 215                                 cdda_buffer_ptr = 0;
 216                                 read_sectors = 0;
 217                                 //if(is_cue) {
 218                                 //      if(fio_img->IsOpened()) fio_img->Fclose();
 219                                 //}
 220                                 //current_track = 0;
 221                         }
 222                         touch_sound();
 223                         set_realtime_render(this, false);
 224                         #ifdef _CDROM_DEBUG_LOG
 225                                 this->out_debug_log(_T("%s playing CDDA.\n"), (status == CDDA_PAUSED) ? _T("PAUSE") : _T("STOP"));
 226                         #endif
 227                 }
 228         }
 229         cdda_status = status;
 230 }
 231
 232 void SCSI_CDROM::reset_device()
 233 {
 234         set_cdda_status(CDDA_OFF);
 235         SCSI_DEV::reset_device();
 236 }
 237
 238 bool SCSI_CDROM::is_device_ready()
 239 {
 240         return mounted();
 241 }
 242
 243 int SCSI_CDROM::get_command_length(int value)
 244 {
 245         switch(value) {
 246         case 0xd8:
 247         case 0xd9:
 248         case 0xda:
 249         case 0xdd:
 250         case 0xde:
 251                 return 10;
 252         }
 253         return SCSI_DEV::get_command_length(value);
 254 }
 255
 256 void SCSI_CDROM::get_track_by_track_num(int track)
 257 {
 258         if((track <= 0) || (track >= track_num)) {
 259                 if(is_cue) {
 260                         if(fio_img->IsOpened()) fio_img->Fclose();
 261                 }
 262                 //if(track <= 0) current_track = 0;
 263                 //if(track >= track_num)current_track = track_num;
 264                 current_track = 0;
 265                 return;
 266         }
 267         if(is_cue) {
 268                 // ToDo: Apply audio with some codecs.
 269                 if((current_track != track) || !(fio_img->IsOpened())){
 270                         if(fio_img->IsOpened()) {
 271                                 fio_img->Fclose();
 272                         }
 273                 #ifdef _CDROM_DEBUG_LOG
 274                         this->out_debug_log(_T("LOAD TRK #%02d from %s\n"), track, track_data_path[track - 1]);
 275                 #endif
 276
 277                         if((track > 0) && (track < 100) && (track < track_num)) {
 278                                 if((strlen(track_data_path[track - 1]) <= 0) ||
 279                                    !(fio_img->Fopen(track_data_path[track - 1], FILEIO_READ_BINARY))) {
 280                                         track = 0;
 281                                 }
 282                         } else {
 283                                 track = 0;
 284                         }
 285                 }
 286         }
 287         current_track = track;
 288 }
 289
 290 // Detect only track num.
 291 int SCSI_CDROM::get_track_noop(uint32_t lba)
 292 {
 293         int track = 0;
 294         for(int i = 0; i < track_num; i++) {
 295                 if(lba >= toc_table[i].index0) {
 296                         track = i;
 297                 } else {
 298                         break;
 299                 }
 300         }
 301         return track;
 302 }
 303
 304 int SCSI_CDROM::get_track(uint32_t lba)
 305 {
 306         int track = 0;
 307         track = get_track_noop(lba);
 308         if(is_cue) {
 309                 get_track_by_track_num(track);
 310         } else {
 311                 current_track = track;
 312         }
 313         return track;
 314 }
 315
 316 double SCSI_CDROM::get_seek_time(uint32_t lba)
 317 {
 318         if(fio_img->IsOpened()) {
 319                 uint32_t cur_position = (uint32_t)fio_img->Ftell();
 320                 int distance;
 321                 if(is_cue) {
 322                         int track = 0;
 323                         for(int i = 0; i < track_num; i++) {
 324                                 if(lba >= toc_table[i].index0) {
 325                                         track = i;
 326                                 } else {
 327                                         break;
 328                                 }
 329                         }
 330                         distance = abs((int)(lba * physical_block_size()) - (int)(cur_position + toc_table[current_track].lba_offset * physical_block_size()));
 331                         if(track != current_track) {
 332                                 current_track = get_track(lba);
 333                         }
 334                 } else {
 335                         distance = abs((int)(lba * physical_block_size()) - (int)cur_position);
 336                 }
 337                 double ratio = ((double)distance / 333000.0) / physical_block_size(); // 333000: sectors in media
 338                 return max(10, (int)(400000 * 2 * ratio));
 339         } else {
 340                 return 400000; // 400msec
 341         }
 342 }
 343
 344 uint32_t SCSI_CDROM::lba_to_msf(uint32_t lba)
 345 {
 346         uint8_t m = lba / (60 * 75);
 347         lba -= m * (60 * 75);
 348         uint8_t s = lba / 75;
 349         uint8_t f = lba % 75;
 350
 351         return ((m / 10) << 20) | ((m % 10) << 16) | ((s / 10) << 12) | ((s % 10) << 8) | ((f / 10) << 4) | ((f % 10) << 0);
 352 }
 353
 354 uint32_t SCSI_CDROM::lba_to_msf_alt(uint32_t lba)
 355 {
 356         uint32_t ret = 0;
 357         ret |= ((lba / (60 * 75)) & 0xff) << 16;
 358         ret |= (((lba / 75) % 60) & 0xff) <<  8;
 359         ret |= ((lba % 75)        & 0xff) <<  0;
 360         return ret;
 361 }
 362
 363 void SCSI_CDROM::start_command()
 364 {
 365         touch_sound();
 366         #ifdef _SCSI_DEBUG_LOG
 367 //      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]);
 368         #endif
 369         switch(command[0]) {
 370         case SCSI_CMD_READ6:
 371                 //seek_time = 10;//get_seek_time((command[1] & 0x1f) * 0x10000 + command[2] * 0x100 + command[3]);
 372                 seek_time = get_seek_time((command[1] & 0x1f) * 0x10000 + command[2] * 0x100 + command[3]);
 373                 set_cdda_status(CDDA_OFF);
 374                 if(seek_time > 10.0) {
 375                         if(event_cdda_delay_play >= 0) {
 376                                 cancel_event(this, event_cdda_delay_play);
 377                                 event_cdda_delay_play = -1;
 378                         }
 379                         register_event(this, EVENT_CDROM_SEEK_SCSI, seek_time - 10.0, false, &event_cdda_delay_play);
 380                         return;
 381                 } else {
 382                         seek_time = 10.0;
 383                 }
 384                 break;
 385         case SCSI_CMD_READ10:
 386         case SCSI_CMD_READ12:
 387                 seek_time = get_seek_time((command[1] & 0x1f) * 0x10000 + command[2] * 0x100 + command[3]);
 388                 set_cdda_status(CDDA_OFF);
 389                 if(seek_time > 10.0) {
 390                         if(event_cdda_delay_play >= 0) {
 391                                 cancel_event(this, event_cdda_delay_play);
 392                                 event_cdda_delay_play = -1;
 393                         }
 394                         register_event(this, EVENT_CDROM_SEEK_SCSI, seek_time - 10.0, false, &event_cdda_delay_play);
 395                         return;
 396                 } else {
 397                         seek_time = 10.0;
 398                 }
 399                 break;
 400
 401         case 0xd8:
 402                 #ifdef _SCSI_DEBUG_LOG
 403                 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]);
 404                 #endif
 405                 if(is_device_ready()) {
 406                         if(command[2] == 0 && command[3] == 0 && command[4] == 0) {
 407                                 // stop cd-da if all params are zero
 408                                 cdda_start_frame = 0;
 409                                 cdda_end_frame = toc_table[track_num].index0; // end of disc
 410                                 double seek_time = get_seek_time(cdda_end_frame);
 411                                 if(is_cue) {
 412                                         get_track_by_track_num(track_num);
 413                                 }
 414                                 //set_cdda_status(CDDA_OFF);
 415                                 if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 416                                 register_event(this, EVENT_CDDA_DELAY_STOP, (seek_time > 10.0) ? seek_time : 10.0, false, &event_cdda_delay_play);
 417                         } else {
 418                                 uint32_t seek_offset = 0;
 419                                 switch(command[9] & 0xc0) {
 420                                 case 0x00:
 421                                         cdda_start_frame = (command[2] << 16) | (command[3] << 8) | command[4];
 422                                         break;
 423                                 case 0x40:
 424                                         {
 425                                                 uint8_t m = FROM_BCD(command[2]);
 426                                                 uint8_t s = FROM_BCD(command[3]);
 427                                                 uint8_t f = FROM_BCD(command[4]);
 428                                                 cdda_start_frame = f + 75 * (s + m * 60);
 429
 430                                                 // PCE tries to be clever here and set (start of track + track pregap size) to skip the pregap
 431                                                 // (I guess it wants the TOC to have the real start sector for data tracks and the start of the pregap for audio?)
 432                                                 int track = get_track(cdda_start_frame);
 433                                                 if(cdda_start_frame >= toc_table[track].pregap) {
 434                                                         cdda_start_frame -= toc_table[track].pregap;
 435                                                 }
 436                                                 if(cdda_start_frame < toc_table[track].index0) {
 437                                                         cdda_start_frame = toc_table[track].index0; // don't play pregap
 438                                                 } else if(cdda_start_frame > max_logical_block) {
 439                                                         cdda_start_frame = 0;
 440                                                 }
 441                                         }
 442                                         break;
 443                                 case 0x80:
 444                                         {
 445                                                 int8_t track = FROM_BCD(command[2] - 1);
 446                                                 cdda_start_frame = toc_table[track].index1;
 447                                                 if(cdda_start_frame >= toc_table[track].pregap) {
 448                                                         cdda_start_frame -= toc_table[track].pregap;
 449                                                 }
 450                                         }
 451                                         break;
 452                                 default:
 453                                         cdda_start_frame = 0;
 454                                         break;
 455                                 }
 456 //                              if(cdda_status == CDDA_PAUSED) {
 457 //                                      cdda_end_frame = toc_table[track_num].index0; // end of disc
 458 //                                      set_cdda_status(CDDA_OFF);
 459 //                              } else
 460                                 double delay_time = get_seek_time(cdda_start_frame);
 461                                 if((command[1] & 3) != 0) {
 462                                         if((is_cue) && (current_track != track_num)){
 463                                                 get_track_by_track_num(track_num);
 464                                         }
 465                                         cdda_end_frame = toc_table[track_num].index0; // end of disc
 466                                         double seek_time = get_seek_time(cdda_start_frame);
 467                                         if(event_cdda_delay_play >= 0) {
 468                                                 cancel_event(this, event_cdda_delay_play);
 469                                                 event_cdda_delay_play = -1;
 470                                         }
 471                                         //set_cdda_status(CDDA_PLAYING);
 472                                         register_event(this, EVENT_CDROM_SEEK_SCSI, seek_time, false, &event_cdda_delay_play);
 473                                 } else {
 474                                         uint32_t _sframe = cdda_start_frame;
 475                                         //cdda_end_frame = toc_table[get_track(_sframe) + 1].index1; // end of this track
 476                                         //cdda_end_frame = toc_table[get_track(_sframe)].index1; // end of this track
 477                                         set_cdda_status(CDDA_PAUSED);
 478                                 }
 479                                 cdda_repeat = false;
 480                                 cdda_interrupt = ((command[1] & 3) == 2);
 481
 482                                 // read buffer
 483                                 //double delay_time = 10.0;
 484 #if 1
 485                                 if(is_cue) {
 486                                         //if(cdda_start_frame > 150) cdda_start_frame = cdda_start_frame - 150;
 487                                         fio_img->Fseek((cdda_start_frame - toc_table[current_track].index0) * 2352, FILEIO_SEEK_SET);
 488                                 } else {
 489                                         fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 490                                 }
 491 #endif
 492                                 read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 493                                 cdda_buffer_ptr = 0;
 494                                 cdda_playing_frame = cdda_start_frame;
 495                                 access = true;
 496
 497                                 // change to status phase
 498                                 set_dat(SCSI_STATUS_GOOD);
 499                                 // From Mame 0.203
 500                                 if(event_delay_interrupt >= 0) cancel_event(this, event_delay_interrupt);
 501                                 register_event(this, EVENT_CDROM_DELAY_INTERRUPT_ON, delay_time, false, &event_delay_interrupt);
 502                                 //set_phase_delay(SCSI_PHASE_STATUS, delay_time + 10.0);
 503                                 //write_signals(&outputs_done, 0xffffffff);
 504                                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 505                                 return;
 506                         }
 507                 }
 508                 // change to status phase
 509                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 510                 // From Mame 0.203
 511                 //if(is_device_ready()) write_signals(&outputs_done, 0xffffffff);
 512                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 513
 514                 return;
 515
 516         case 0xd9:
 517                 #ifdef _SCSI_DEBUG_LOG
 518                 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]);
 519                 #endif
 520                 if(is_device_ready()) {
 521
 522                         switch(command[9] & 0xc0) {
 523                         case 0x00:
 524                                 cdda_end_frame = (command[3] << 16) | (command[4] << 8) | command[5];
 525                                 break;
 526                         case 0x40:
 527                                 {
 528                                         uint8_t m = FROM_BCD(command[2]);
 529                                         uint8_t s = FROM_BCD(command[3]);
 530                                         uint8_t f = FROM_BCD(command[4]);
 531                                         cdda_end_frame = f + 75 * (s + m * 60);
 532
 533                                         // PCE tries to be clever here and set (start of track + track pregap size) to skip the pregap
 534                                         // (I guess it wants the TOC to have the real start sector for data tracks and the start of the pregap for audio?)
 535
 536 //                                      int track = get_track(cdda_start_frame);
 537                                         int track = current_track;
 538                                         cdda_playing_frame = cdda_start_frame;
 539 //                                      if(is_cue) {
 540 //                                              fio_img->Fseek((cdda_start_frame - toc_table[current_track].lba_offset) * 2352, FILEIO_SEEK_SET);
 541 //                                      } else {
 542 //                                              fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 543 //                                      }
 544                                         //read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 545
 546                                         if(cdda_end_frame > toc_table[track + 1].index1 && (cdda_end_frame - toc_table[track].pregap) <= toc_table[track + 1].index1) {
 547                                                 cdda_end_frame = toc_table[track + 1].index1;
 548                                         }
 549                                         cdda_buffer_ptr = 0;
 550                                 }
 551                                 break;
 552                         case 0x80:
 553                                 {
 554                                         int _track = FROM_BCD(command[2]) - 1;
 555                                         if(_track >= 0) {
 556                                                 cdda_end_frame = toc_table[_track].index0;
 557                                                 if(is_cue) {
 558                                                         if(current_track != _track) {
 559                                                                 get_track_by_track_num(_track);
 560                                                                 cdda_start_frame = toc_table[_track].index0;
 561                                                                 cdda_end_frame = toc_table[_track].lba_size + toc_table[_track].lba_offset;
 562                                                                 cdda_playing_frame = cdda_start_frame;
 563                                                                 if(is_cue) {
 564                                                                         fio_img->Fseek((cdda_start_frame - toc_table[current_track].lba_offset) * 2352, FILEIO_SEEK_SET);
 565                                                                 } else {
 566                                                                         fio_img->Fseek(cdda_start_frame * 2352, FILEIO_SEEK_SET);
 567                                                                 }
 568                                                                 read_sectors = fio_img->Fread(cdda_buffer, 2352 * sizeof(uint8_t), array_length(cdda_buffer) / 2352);
 569                                                                 cdda_buffer_ptr = 0;
 570                                                         }
 571                                                 }
 572                                         }
 573                                 }
 574                                 break;
 575                         default:
 576                                 break; // ToDo
 577                         }
 578                         if((command[1] & 3) != 0) {
 579                                 cdda_repeat = ((command[1] & 3) == 1);
 580                                 cdda_interrupt = ((command[1] & 3) == 2);
 581
 582                                 if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 583                                 register_event(this, EVENT_CDDA_DELAY_PLAY, 10.0, false, &event_cdda_delay_play);
 584                                 //set_cdda_status(CDDA_PLAYING);
 585                         } else {
 586                                 set_cdda_status(CDDA_OFF);
 587                                 cdda_start_frame = toc_table[track_num].index0;;
 588                                 cdda_end_frame = toc_table[track_num].index1; // end of disc
 589                                 double seek_time = get_seek_time(cdda_start_frame);
 590                                 //double seek_time = 10.0;
 591                                 get_track_by_track_num(track_num); // END OF DISC
 592
 593                                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 594 //                              if(event_cdda_delay_play >= 0) cancel_event(this, event_cdda_delay_play);
 595 //                              register_event(this, EVENT_CDDA_DELAY_STOP, (seek_time > 10.0) ? seek_time : 10.0, false, &event_cdda_delay_play);
 596                                 if(is_device_ready()) {
 597                                         if(event_delay_interrupt >= 0) {
 598                                                 cancel_event(this, event_delay_interrupt);
 599                                                 event_delay_interrupt = -1;
 600                                         }
 601                                         register_event(this, EVENT_CDROM_DELAY_INTERRUPT_ON, (seek_time > 10.0) ? (seek_time + 10.0) : (10.0 + 10.0), false, &event_delay_interrupt);
 602                                 }
 603                                 set_phase_delay(SCSI_PHASE_STATUS, (seek_time > 10.0) ? (seek_time + 10.0) : (10.0 + 10.0));
 604                                 return;
 605                         }
 606                 }
 607                 // change to status phase
 608                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 609                 if(is_device_ready()) {
 610                         write_signals(&outputs_done, 0xffffffff);
 611                         //if(event_delay_interrupt >= 0) cancel_event(this, event_delay_interrupt);
 612                         //register_event(this, EVENT_CDROM_DELAY_INTERRUPT_ON, 10.0, false, &event_delay_interrupt);
 613
 614                 }
 615                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 616                 return;
 617
 618         case 0xda:
 619                 #ifdef _SCSI_DEBUG_LOG
 620                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Pause\n"), scsi_id);
 621                 #endif
 622                 if(is_device_ready()) {
 623                         if(cdda_status == CDDA_PLAYING) {
 624                                 set_cdda_status(CDDA_PAUSED);
 625                         }
 626                 }
 627                 // change to status phase
 628                 set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 629                 if(is_device_ready()) write_signals(&outputs_done, 0xffffffff);
 630                 set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 631                 return;
 632
 633         case 0xdd:
 634                 #ifdef _SCSI_DEBUG_LOG
 635                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Read Sub Channel Q\n"), scsi_id);
 636                 #endif
 637                 if(is_device_ready()) {
 638                         // create track info
 639                         uint32_t frame = (cdda_status == CDDA_OFF) ? cdda_start_frame : cdda_playing_frame;
 640                         uint32_t msf_abs = lba_to_msf_alt(frame);
 641                         int track;
 642                         double delay_time = 10.0;
 643                         track = current_track;
 644                         if((cdda_status == CDDA_OFF) && (toc_table[track].is_audio)) { // OK? (or force ERROR) 20181120 K.O
 645                                 //set_cdda_status(CDDA_PLAYING);
 646                                 delay_time = get_seek_time(frame);
 647                                 //delay_time = 10.0;
 648                                 if(event_cdda_delay_play >= 0) {
 649                                         cancel_event(this, event_cdda_delay_play);
 650                                         event_cdda_delay_play = -1;
 651                                 }
 652                                 register_event(this, EVENT_CDDA_DELAY_PLAY, delay_time, false, &event_cdda_delay_play);
 653                         }
 654                         uint32_t msf_rel = lba_to_msf_alt(frame - toc_table[track].index0);
 655                         buffer->clear();
 656                         buffer->write((cdda_status == CDDA_PLAYING) ? 0x00 : (cdda_status == CDDA_PAUSED) ? 0x02 : 0x03);
 657                         buffer->write(0x01 | (toc_table[track].is_audio ? 0x00 : 0x40));
 658                         buffer->write(TO_BCD(track + 1));               // Track
 659                         buffer->write(0x01);                            // Index
 660                         buffer->write(TO_BCD((msf_rel >> 16) & 0xff));  // M (relative)
 661                         buffer->write(TO_BCD((msf_rel >>  8) & 0xff));  // S (relative)
 662                         buffer->write(TO_BCD((msf_rel >>  0) & 0xff));  // F (relative)
 663                         buffer->write(TO_BCD((msf_abs >> 16) & 0xff));  // M (absolute)
 664                         buffer->write(TO_BCD((msf_abs >>  8) & 0xff));  // S (absolute)
 665                         buffer->write(TO_BCD((msf_abs >>  0) & 0xff));  // F (absolute)
 666                         // transfer length
 667                         remain = buffer->count();
 668                         // set first data
 669                         set_dat(buffer->read());
 670                         // change to data in phase
 671                         set_phase_delay(SCSI_PHASE_DATA_IN, 10.0);
 672                 } else {
 673                         // change to status phase
 674                         set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 675                         set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 676                 }
 677                 return;
 678
 679         case 0xde:
 680                 #ifdef _SCSI_DEBUG_LOG
 681                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Command: NEC Get Dir Info\n"), scsi_id);
 682                 #endif
 683                 if(is_device_ready()) {
 684                         buffer->clear();
 685                 #ifdef _SCSI_DEBUG_LOG
 686                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] CMD=%02x ARG=%02x \n"), scsi_id, command[1], command[2]);
 687                 #endif
 688                         switch(command[1]) {
 689                         case 0x00:      /* Get first and last track numbers */
 690                                 buffer->write(TO_BCD(1));
 691                                 buffer->write(TO_BCD(track_num));
 692                                 break;
 693                         case 0x01:      /* Get total disk size in MSF format */
 694                                 {
 695                                         uint32_t msf = lba_to_msf(toc_table[track_num].index0 + 150);
 696                                         buffer->write((msf >> 16) & 0xff);
 697                                         buffer->write((msf >>  8) & 0xff);
 698                                         buffer->write((msf >>  0) & 0xff);
 699                                 }
 700                                 break;
 701                         case 0x02:      /* Get track information */
 702                                 if(command[2] == 0xaa) {
 703                                         uint32_t msf = lba_to_msf(toc_table[track_num].index0 + 150);
 704                                         buffer->write((msf >> 16) & 0xff);
 705                                         buffer->write((msf >>  8) & 0xff);
 706                                         buffer->write((msf >>  0) & 0xff);
 707                                         buffer->write(0x04); // correct ?
 708                                 } else {
 709                                         int track = max(FROM_BCD(command[2]), 1);
 710                                         uint32_t frame = toc_table[track].index0;
 711                                         // PCE wants the start sector for data tracks to *not* include the pregap
 712                                         if(!toc_table[track].is_audio) {
 713                                                 frame += toc_table[track].pregap;
 714                                         }
 715                                         get_track_by_track_num(track);
 716
 717                                         uint32_t msf = lba_to_msf(toc_table[track].index1 + 150);
 718                                         buffer->write((msf >> 16) & 0xff); // M
 719                                         buffer->write((msf >>  8) & 0xff); // S
 720                                         buffer->write((msf >>  0) & 0xff); // F
 721                                         buffer->write(toc_table[track].is_audio ? 0x00 : 0x04);
 722                                 }
 723                                 break;
 724                         }
 725                         // transfer length
 726                         remain = buffer->count();
 727                         // set first data
 728                         set_dat(buffer->read());
 729                         // change to data in phase
 730                         set_phase_delay(SCSI_PHASE_DATA_IN, 10.0);
 731                 } else {
 732                         // change to status phase
 733                         set_dat(is_device_ready() ? SCSI_STATUS_GOOD : SCSI_STATUS_CHKCOND);
 734                         set_phase_delay(SCSI_PHASE_STATUS, 10.0);
 735                 }
 736                 return;
 737         case 0xff:
 738                 // End of List
 739                 set_dat(SCSI_STATUS_CHKCOND);
 740                 return;
 741         }
 742
 743         // start standard command
 744         SCSI_DEV::start_command();
 745 }
 746
 747 bool SCSI_CDROM::read_buffer(int length)
 748 {
 749         if(!fio_img->IsOpened()) {
 750                 set_sense_code(SCSI_SENSE_NOTREADY);
 751                 return false;
 752         }
 753         uint32_t offset = (uint32_t)(position % 2352);
 754
 755         if(is_cue) {
 756                 // ToDo: Need seek wait.
 757                 #ifdef _CDROM_DEBUG_LOG
 758                         this->out_debug_log(_T("Seek to LBA %d\n"), position / 2352);
 759                 #endif
 760                 if(fio_img->Fseek(((long)position - (long)(toc_table[current_track].lba_offset * 2352)), FILEIO_SEEK_SET) != 0) {
 761                         set_sense_code(SCSI_SENSE_ILLGLBLKADDR); //SCSI_SENSE_SEEKERR
 762                         #ifdef _SCSI_DEBUG_LOG
 763                                 this->out_debug_log(_T("[SCSI_DEV:ID=%d] Error on reading (ILLGLBLKADDR) at line %d\n"), scsi_id, __LINE__);
 764                         #endif
 765                         return false;
 766                 }
 767         } else {
 768                 if(fio_img->Fseek((long)position, FILEIO_SEEK_SET) != 0) {
 769                         set_sense_code(SCSI_SENSE_ILLGLBLKADDR); //SCSI_SENSE_SEEKERR
 770                         #ifdef _SCSI_DEBUG_LOG
 771                                 this->out_debug_log(_T("[SCSI_DEV:ID=%d] Error on reading (ILLGLBLKADDR) at line %d\n"), scsi_id, __LINE__);
 772                         #endif
 773                         return false;
 774                 }
 775         }
 776         while(length > 0) {
 777                 uint8_t tmp_buffer[SCSI_BUFFER_SIZE];
 778                 int tmp_length = min(length, (int)sizeof(tmp_buffer));
 779
 780                 if(fio_img->Fread(tmp_buffer, tmp_length, 1) != 1) {
 781                         #ifdef _SCSI_DEBUG_LOG
 782                         this->out_debug_log(_T("[SCSI_DEV:ID=%d] Error on reading (ILLGLBLKADDR) at line %d\n"), scsi_id, __LINE__);
 783                         #endif
 784
 785                         set_sense_code(SCSI_SENSE_ILLGLBLKADDR); //SCSI_SENSE_NORECORDFND
 786                         return false;
 787                 }
 788                 for(int i = 0; i < tmp_length && length > 0; i++) {
 789                         if(offset >= 16 && offset < 16 + 2048) {
 790                                 int value = tmp_buffer[i];
 791                                 buffer->write(value);
 792                                 length--;
 793                         }
 794                         position++;
 795                         offset = (offset + 1) % 2352;
 796                 }
 797                 access = true;
 798         }
 799         // Is This right? 20181120 K.O
 800         //write_signals(&outputs_done, 0xffffffff); // Maybe don't need "DONE SIGNAL" with reading DATA TRACK. 20181207 K.O
 801         set_sense_code(SCSI_SENSE_NOSENSE);
 802         return true;
 803 }
 804
 805 int get_frames_from_msf(const char *string)
 806 {
 807         const char *ptr = string;
 808         int frames[3] = {0};
 809         int index = 0;
 810
 811         while(1) {
 812                 if(*ptr >= '0' && *ptr <= '9') {
 813                         frames[index] = frames[index] * 10 + (*ptr - '0');
 814                 } else if(*ptr == ':') {
 815                         if(++index == 3) {
 816                                 // abnormal data
 817                                 break;
 818                         }
 819                 } else if(*ptr == '\r' || *ptr == '\n' || *ptr == '\0') {
 820                         // end of line
 821                         break;
 822                 }
 823                 ptr++;
 824         }
 825         return (frames[0] * 60 + frames[1]) * 75 + frames[2]; // 75frames/sec
 826 }
 827
 828 int hexatoi(const char *string)
 829 {
 830         const char *ptr = string;
 831         int value = 0;
 832
 833         while(1) {
 834                 if(*ptr >= '0' && *ptr <= '9') {
 835                         value = value * 16 + (*ptr - '0');
 836                 } else if(*ptr >= 'a' && *ptr <= 'f') {
 837                         value = value * 16 + (*ptr - 'a' + 10);
 838                 } else if(*ptr >= 'A' && *ptr <= 'F') {
 839                         value = value * 16 + (*ptr - 'A' + 10);
 840                 } else if(*ptr == '\r' || *ptr == '\n' || *ptr == '\0') {
 841                         break;
 842                 }
 843                 ptr++;
 844         }
 845         return value;
 846 }
 847
 848 #include <string>
 849
 850 bool SCSI_CDROM::open_cue_file(const _TCHAR* file_path)
 851 {
 852         std::string line_buf;
 853         std::string line_buf_shadow;
 854         std::string image_tmp_data_path;
 855
 856         _TCHAR full_path_cue[_MAX_PATH];
 857         size_t ptr;
 858         int line_count = 0;
 859         int slen;
 860         int nr_current_track = 0;
 861         FILEIO* fio = new FILEIO();
 862         if(fio == NULL) return false;
 863
 864         memset(full_path_cue, 0x00, sizeof(full_path_cue));
 865         image_tmp_data_path.clear();
 866
 867         get_long_full_path_name(file_path, full_path_cue, sizeof(full_path_cue));
 868
 869         _TCHAR *parent_dir = get_parent_dir(full_path_cue);
 870
 871         size_t _arg1_ptr;
 872         size_t _arg2_ptr;
 873         size_t _arg2_ptr_s;
 874         size_t _arg3_ptr;
 875         size_t _arg3_ptr_s;
 876
 877         std::string _arg1;
 878         std::string _arg2;
 879         std::string _arg3;
 880
 881         if(fio->Fopen(file_path, FILEIO_READ_ASCII)) { // ToDo: Support not ASCII cue file (i.e. SJIS/UTF8).20181118 K.O
 882                 line_buf.clear();
 883                 for(int i = 0; i < 100; i++) {
 884                         memset(&(track_data_path[i][0]), 0x00, _MAX_PATH * sizeof(_TCHAR));
 885                 }
 886                 int _c;
 887                 bool is_eof = false;
 888                 int sptr = 0;
 889                 while(1) {
 890                         line_buf.clear();
 891                         int _np = 0;
 892                         _c = EOF;
 893                         do {
 894                                 _c = fio->Fgetc();
 895                                 if((_c == '\0') || (_c == '\n') || (_c == EOF)) break;;
 896                                 if(_c != '\r') line_buf.push_back((char)_c);
 897                         } while(1);
 898                         if(_c == EOF) is_eof = true;
 899                         slen = (int)line_buf.length();
 900                         if(slen <= 0) goto _n_continue;
 901                         // Trim head of Space or TAB
 902                         ptr = 0;
 903                         sptr = 0;
 904                         // Tokenize
 905                         _arg1.clear();
 906                         _arg2.clear();
 907                         _arg3.clear();
 908
 909                         ptr = line_buf.find_first_not_of((const char*)" \t");
 910                         if(ptr == std::string::npos) {
 911                                 goto _n_continue;
 912                         }
 913                         // Token1
 914                         line_buf_shadow = line_buf.substr(ptr);
 915
 916                         _arg1_ptr = line_buf_shadow.find_first_of((const char *)" \t");
 917                         _arg1 = line_buf_shadow.substr(0, _arg1_ptr);
 918                         _arg2 = line_buf_shadow.substr(_arg1_ptr);
 919                         std::transform(_arg1.begin(), _arg1.end(), _arg1.begin(),
 920                                                    [](unsigned char c) -> unsigned char{ return std::toupper(c); });
 921
 922                         _arg2_ptr = _arg2.find_first_not_of((const char *)" \t");
 923
 924                         if(_arg2_ptr != std::string::npos) {
 925                                 _arg2 = _arg2.substr(_arg2_ptr);
 926                         }
 927
 928                         if(_arg1 == "REM") {
 929                                 // REM
 930                                 goto _n_continue;
 931                         } else if(_arg1 == "FILE") {
 932                                 _arg2_ptr = _arg2.find_first_of((const char *)"\"") + 1;
 933                                 if(_arg2_ptr == std::string::npos) goto _n_continue;
 934
 935                                 _arg2 = _arg2.substr(_arg2_ptr);
 936                                 _arg3_ptr = _arg2.find_first_of((const char *)"\"");
 937                                 if(_arg3_ptr == std::string::npos) goto _n_continue;
 938                                 _arg2 = _arg2.substr(0, _arg3_ptr);
 939
 940                                 image_tmp_data_path.clear();
 941                                 image_tmp_data_path = std::string(parent_dir);
 942                                 image_tmp_data_path.append(_arg2);
 943
 944                                 #ifdef _CDROM_DEBUG_LOG
 945                                         this->out_debug_log(_T("**FILE %s\n"), image_tmp_data_path.c_str());
 946                                 #endif
 947                                 goto _n_continue; // ToDo: Check ARG2 (BINARY etc..) 20181118 K.O
 948                         } else if(_arg1 == "TRACK") {
 949                                 _arg2_ptr_s = _arg2.find_first_of((const char *)" \t");
 950
 951                                 _arg3 = _arg2.substr(_arg2_ptr_s);
 952                                 _arg2 = _arg2.substr(0, _arg2_ptr_s);
 953                                 _arg3_ptr = _arg3.find_first_not_of((const char *)" \t");
 954                                 int _nr_num = atoi(_arg2.c_str());
 955
 956                                 // Set image file
 957                                 if((_nr_num > 0) && (_nr_num < 100) && (_arg3_ptr != std::string::npos)) {
 958                                         nr_current_track = _nr_num;
 959                                         _arg3 = _arg3.substr(_arg3_ptr);
 960
 961                                         memset(track_data_path[_nr_num - 1], 0x00, sizeof(_TCHAR) * _MAX_PATH);
 962                                         strncpy((char *)(track_data_path[_nr_num - 1]), image_tmp_data_path.c_str(), _MAX_PATH);
 963
 964                                         _arg3_ptr_s = _arg3.find_first_of((const char *)" \t\n");
 965                                         _arg3.substr(0, _arg3_ptr_s);
 966
 967                                         std::transform(_arg3.begin(), _arg3.end(), _arg3.begin(),
 968                                                                    [](unsigned char c) -> unsigned char{ return std::toupper(c); });
 969
 970                                         toc_table[nr_current_track].is_audio = false;
 971                                         toc_table[nr_current_track].index0 = 0;
 972                                         toc_table[nr_current_track].index1 = 0;
 973                                         toc_table[nr_current_track].pregap = 0;
 974
 975                                         if(_arg3.compare("AUDIO") == 0) {
 976                                                 toc_table[nr_current_track].is_audio = true;
 977                                         } else if(_arg3.compare("MODE1/2352") == 0) {
 978                                                 toc_table[nr_current_track].is_audio = false;
 979                                         } else {
 980                                                 // ToDo:  another type
 981                                         }
 982                                         if(track_num < (_nr_num + 1)) track_num = _nr_num + 1;
 983                                 } else {
 984                                         // ToDo: 20181118 K.Ohta
 985                                         nr_current_track = 0;
 986                                 }
 987                                 goto _n_continue;
 988                         } else if(_arg1 == "INDEX") {
 989
 990                                 if((nr_current_track > 0) && (nr_current_track < 100)) {
 991                                         _arg2_ptr_s = _arg2.find_first_of((const char *)" \t");
 992                                         if(_arg2_ptr_s == std::string::npos) goto _n_continue;
 993
 994                                         _arg3 = _arg2.substr(_arg2_ptr_s);
 995                                         _arg2 = _arg2.substr(0, _arg2_ptr_s);
 996                                         _arg3_ptr = _arg3.find_first_not_of((const char *)" \t");
 997                                         if(_arg3_ptr == std::string::npos) goto _n_continue;
 998
 999                                         _arg3 = _arg3.substr(_arg3_ptr);
1000                                         _arg3_ptr_s = _arg3.find_first_of((const char *)" \t");
1001                                         _arg3.substr(0, _arg3_ptr_s);
1002                                         int index_type = atoi(_arg2.c_str());
1003
1004                                         switch(index_type) {
1005                                         case 0:
1006                                                 toc_table[nr_current_track].index0 = get_frames_from_msf(_arg3.c_str());
1007                                                 break;
1008                                         case 1:
1009                                                 toc_table[nr_current_track].index1 = get_frames_from_msf(_arg3.c_str());
1010                                                 break;
1011                                         default:
1012                                                 break;
1013                                         }
1014                                         goto _n_continue;
1015                                 } else {
1016                                         goto _n_continue;
1017                                 }
1018                         } else if(_arg1 == "PREGAP") {
1019                                 if((nr_current_track > 0) && (nr_current_track < 100)) {
1020                                         _arg2_ptr_s = _arg2.find_first_of((const char *)" \t");
1021                                         _arg2 = _arg2.substr(0, _arg2_ptr_s - 1);
1022
1023                                         toc_table[nr_current_track].pregap = get_frames_from_msf(_arg2.c_str());
1024                                         goto _n_continue;
1025                                 } else {
1026                                         goto _n_continue;
1027                                 }
1028                         }
1029                 _n_continue:
1030                         if(is_eof) break;
1031                         line_buf.clear();
1032                         continue;
1033                 }
1034                 // Finish
1035                 max_logical_block = 0;
1036                 if(track_num > 0) {
1037                         toc_table[0].lba_offset = 0;
1038                         toc_table[0].lba_size = 0;
1039                         toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1040                         // P1: Calc
1041                         int _n = 0;
1042                         for(int i = 1; i < track_num; i++) {
1043
1044                                 if(fio_img->IsOpened()) {
1045                                         fio_img->Fclose();
1046                                 }
1047                                 if(toc_table[i].index1 != 0) {
1048                                         toc_table[i].index0 = toc_table[i].index0 + max_logical_block;
1049                                         toc_table[i].index1 = toc_table[i].index1 + max_logical_block;
1050                                         if(toc_table[i].index0 != max_logical_block) {
1051                                                 if(toc_table[i].pregap == 0) {
1052                                                         toc_table[i].pregap = toc_table[i].index1 - toc_table[i].index0;
1053                                                 }
1054                                         }
1055                                 } else {
1056                                         toc_table[i].index1 = toc_table[i].index1 + max_logical_block;
1057                                         if(toc_table[i].index0 == 0) {
1058                                                 toc_table[i].index0 = toc_table[i].index1 - toc_table[i].pregap;
1059                                         } else {
1060                                                 toc_table[i].index0 = toc_table[i].index0 + max_logical_block;
1061                                                 if(toc_table[i].pregap == 0) {
1062                                                         toc_table[i].pregap = toc_table[i].index1 - toc_table[i].index0;
1063                                                 }
1064                                         }
1065                                 }
1066                                 // Even...
1067                                 if(toc_table[i].pregap <= 0) {
1068                                         toc_table[i].pregap = 150; // Default PREGAP must be 2Sec. From OoTake.(Only with PCE? Not with FM-Towns?)
1069                                 }
1070
1071                                 _n = 0;
1072                                 if(strlen(track_data_path[i - 1]) > 0) {
1073                                         if(fio_img->Fopen(track_data_path[i - 1], FILEIO_READ_BINARY)) {
1074                                                 if((_n = fio_img->FileLength() / 2352) > 0) {
1075                                                         max_logical_block += _n;
1076                                                 } else {
1077                                                         _n = 0;
1078                                                 }
1079                                                 fio_img->Fclose();
1080                                         }
1081                                 }
1082                                 toc_table[i].lba_size = _n;
1083                                 toc_table[i].lba_offset = max_logical_block - _n;
1084
1085
1086                                 //#ifdef _CDROM_DEBUG_LOG
1087                                 this->out_debug_log(_T("TRACK#%02d TYPE=%s PREGAP=%d INDEX0=%d INDEX1=%d LBA_SIZE=%d LBA_OFFSET=%d PATH=%s\n"),
1088                                                                         i, (toc_table[i].is_audio) ? _T("AUDIO") : _T("MODE1/2352"),
1089                                                                         toc_table[i].pregap, toc_table[i].index0, toc_table[i].index1,
1090                                                                         toc_table[i].lba_size, toc_table[i].lba_offset, track_data_path[i - 1]);
1091                                 //#endif
1092                         }
1093                         toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1094 //                      toc_table[track_num].index0 = toc_table[track_num].index1 = max_logical_block;
1095 //                      toc_table[track_num].lba_offset = max_logical_block;
1096 //                      toc_table[track_num].lba_size = 0;
1097
1098                 }
1099                 fio->Fclose();
1100         }
1101         delete fio;
1102
1103         is_cue = false;
1104         if(track_num > 0) is_cue = true;
1105         // Not Cue FILE.
1106         return is_cue;
1107 }
1108
1109 void SCSI_CDROM::open(const _TCHAR* file_path)
1110 {
1111         _TCHAR img_file_path[_MAX_PATH];
1112
1113         close();
1114
1115         if(check_file_extension(file_path, _T(".cue"))) {
1116 #if 1
1117                 is_cue = false;
1118                 current_track = 0;
1119                 open_cue_file(file_path);
1120 #else
1121                 // get image file name
1122                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img"), get_file_path_without_extensiton(file_path));
1123                 if(!FILEIO::IsFileExisting(img_file_path)) {
1124                         my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.bin"), get_file_path_without_extensiton(file_path));
1125                         if(!FILEIO::IsFileExisting(img_file_path)) {
1126                                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.gz"), get_file_path_without_extensiton(file_path));
1127                                 if(!FILEIO::IsFileExisting(img_file_path)) {
1128                                         my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img.gz"), get_file_path_without_extensiton(file_path));
1129                                         if(!FILEIO::IsFileExisting(img_file_path)) {
1130                                                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.bin.gz"), get_file_path_without_extensiton(file_path));
1131                                         }
1132                                 }
1133                         }
1134                 }
1135                 if(fio_img->Fopen(img_file_path, FILEIO_READ_BINARY)) {
1136                         // get image file size
1137                         if((max_logical_block = fio_img->FileLength() / 2352) > 0) {
1138                                 // read cue file
1139                                 FILEIO* fio = new FILEIO();
1140                                 if(fio->Fopen(file_path, FILEIO_READ_BINARY)) {
1141                                         char line[1024], *ptr;
1142                                         int track = -1;
1143                                         while(fio->Fgets(line, 1024) != NULL) {
1144                                                 if(strstr(line, "FILE") != NULL) {
1145                                                         // do nothing
1146                                                 } else if((ptr = strstr(line, "TRACK")) != NULL) {
1147                                                         // "TRACK 01 AUDIO"
1148                                                         // "TRACK 02 MODE1/2352"
1149                                                         ptr += 6;
1150                                                         while(*ptr == ' ' || *ptr == 0x09) {
1151                                                                 ptr++;
1152                                                         }
1153                                                         if((track = atoi(ptr)) > 0) {
1154                                                                 if(track > track_num) {
1155                                                                         track_num = track;
1156                                                                 }
1157                                                                 toc_table[track - 1].is_audio = (strstr(line, "AUDIO") != NULL);
1158                                                         }
1159                                                 } else if((ptr = strstr(line, "PREGAP")) != NULL) {
1160                                                         // "PREGAP 00:02:00"
1161                                                         if(track > 0) {
1162                                                                 toc_table[track - 1].pregap = get_frames_from_msf(ptr + 7);
1163                                                         }
1164                                                 } else if((ptr = strstr(line, "INDEX")) != NULL) {
1165                                                         // "INDEX 01 00:00:00"
1166                                                         if(track > 0) {
1167                                                                 ptr += 6;
1168                                                                 while(*ptr == ' ' || *ptr == 0x09) {
1169                                                                         ptr++;
1170                                                                 }
1171                                                                 int num = atoi(ptr);
1172                                                                 while(*ptr >= '0' && *ptr <= '9') {
1173                                                                         ptr++;
1174                                                                 }
1175                                                                 if(num == 0) {
1176                                                                         toc_table[track - 1].index0 = get_frames_from_msf(ptr);
1177                                                                 } else if(num == 1) {
1178                                                                         toc_table[track - 1].index1 = get_frames_from_msf(ptr);
1179                                                                 }
1180                                                         }
1181                                                 }
1182                                         }
1183                                         if(track_num != 0) {
1184                                                 for(int i = 1; i < track_num; i++) {
1185                                                         if(toc_table[i].index0 == 0) {
1186                                                                 toc_table[i].index0 = toc_table[i].index1 - toc_table[i].pregap;
1187                                                         } else if(toc_table[i].pregap == 0) {
1188                                                                 toc_table[i].pregap = toc_table[i].index1 - toc_table[i].index0;
1189                                                         }
1190                                                 }
1191                                                 toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1192                                                 toc_table[track_num].index0 = toc_table[track_num].index1 = max_logical_block;
1193                                         } else {
1194                                                 fio_img->Fclose();
1195                                         }
1196                                         fio->Fclose();
1197                                 }
1198                                 delete fio;
1199                         }
1200                 }
1201 #endif
1202         } else if(check_file_extension(file_path, _T(".ccd"))) {
1203                 // get image file name
1204                 my_stprintf_s(img_file_path, _MAX_PATH, _T("%s.img"), 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                         }
1210                 }
1211                 if(fio_img->Fopen(img_file_path, FILEIO_READ_BINARY)) {
1212                         is_cue = false;
1213                         current_track = 0;
1214                         // get image file size
1215                         if((max_logical_block = fio_img->FileLength() / 2352) > 0) {
1216                                 // read cue file
1217                                 FILEIO* fio = new FILEIO();
1218                                 if(fio->Fopen(file_path, FILEIO_READ_BINARY)) {
1219                                         char line[1024], *ptr;
1220                                         int track = -1;
1221                                         while(fio->Fgets(line, 1024) != NULL) {
1222                                                 if(strstr(line, "[Session ") != NULL) {
1223                                                         track = -1;
1224                                                 } else if((ptr = strstr(line, "Point=0x")) != NULL) {
1225                                                         if((track = hexatoi(ptr + 8)) > 0 && track < 0xa0) {
1226                                                                 if(track > track_num) {
1227                                                                         track_num = track;
1228                                                                 }
1229                                                         }
1230                                                 } else if((ptr = strstr(line, "Control=0x")) != NULL) {
1231                                                         if(track > 0 && track < 0xa0) {
1232                                                                 toc_table[track - 1].is_audio = (hexatoi(ptr + 10) != 4);
1233                                                         }
1234                                                 } else if((ptr = strstr(line, "ALBA=-")) != NULL) {
1235                                                         if(track > 0 && track < 0xa0) {
1236                                                                 toc_table[track - 1].pregap = atoi(ptr + 6);
1237                                                         }
1238                                                 } else if((ptr = strstr(line, "PLBA=")) != NULL) {
1239                                                         if(track > 0 && track < 0xa0) {
1240                                                                 toc_table[track - 1].index1 = atoi(ptr + 5);
1241                                                         }
1242                                                 }
1243                                         }
1244                                         if(track_num != 0) {
1245                                                 toc_table[0].lba_offset = 0;
1246                                                 toc_table[0].pregap = 0;
1247                                                 for(int i = 1; i < track_num; i++) {
1248                                                         toc_table[i].index0 = toc_table[i].index1 - toc_table[i].pregap;
1249                                                         toc_table[i].lba_offset = toc_table[i].pregap;
1250                                                         toc_table[i - 1].lba_size = toc_table[i].pregap - toc_table[i - 1].pregap;
1251                                                 }
1252                                                 toc_table[0].index0 = toc_table[0].index1 = toc_table[0].pregap = 0;
1253                                                 toc_table[track_num].index0 = toc_table[track_num].index1 = max_logical_block;
1254                                                 if(track_num > 0) {
1255                                                         toc_table[track_num].lba_size = max_logical_block - toc_table[track_num - 1].lba_offset;
1256                                                 } else {
1257                                                         toc_table[track_num].lba_size = 0;
1258                                                 }
1259                                         } else {
1260                                                 fio_img->Fclose();
1261                                         }
1262                                         fio->Fclose();
1263                                 }
1264                                 delete fio;
1265                         }
1266                 }
1267         }
1268 #ifdef _SCSI_DEBUG_LOG
1269         if(mounted()) {
1270                 for(int i = 0; i < track_num + 1; i++) {
1271                         uint32_t idx0_msf = lba_to_msf(toc_table[i].index0);
1272                         uint32_t idx1_msf = lba_to_msf(toc_table[i].index1);
1273                         uint32_t pgap_msf = lba_to_msf(toc_table[i].pregap);
1274                         this->out_debug_log(_T("Track%02d: Index0=%02x:%02x:%02x Index1=%02x:%02x:%02x PreGpap=%02x:%02x:%02x\n"), i + 1,
1275                         (idx0_msf >> 16) & 0xff, (idx0_msf >> 8) & 0xff, idx0_msf & 0xff,
1276                         (idx1_msf >> 16) & 0xff, (idx1_msf >> 8) & 0xff, idx1_msf & 0xff,
1277                         (pgap_msf >> 16) & 0xff, (pgap_msf >> 8) & 0xff, pgap_msf & 0xff);
1278                 }
1279         }
1280 #endif
1281 }
1282
1283 void SCSI_CDROM::close()
1284 {
1285         if(fio_img->IsOpened()) {
1286                 fio_img->Fclose();
1287         }
1288         memset(toc_table, 0, sizeof(toc_table));
1289         track_num = 0;
1290         is_cue = false;
1291         current_track = 0;
1292         set_cdda_status(CDDA_OFF);
1293 }
1294
1295 bool SCSI_CDROM::mounted()
1296 {
1297         if(is_cue) return true;
1298         return fio_img->IsOpened();
1299 }
1300
1301 bool SCSI_CDROM::accessed()
1302 {
1303         bool value = access;
1304         access = false;
1305         return value;
1306 }
1307
1308 void SCSI_CDROM::mix(int32_t* buffer, int cnt)
1309 {
1310         if(cdda_status == CDDA_PLAYING) {
1311                 if(mix_loop_num != 0) {
1312                         int tmp_l = 0, tmp_r = 0;
1313                         for(int i = 0; i < mix_loop_num; i++) {
1314                                 event_callback(EVENT_CDDA, 0);
1315                                 tmp_l += cdda_sample_l;
1316                                 tmp_r += cdda_sample_r;
1317                         }
1318                         cdda_sample_l = tmp_l / mix_loop_num;
1319                         cdda_sample_r = tmp_r / mix_loop_num;
1320                 }
1321                 int32_t val_l = apply_volume(apply_volume(cdda_sample_l, volume_m), volume_l);
1322                 int32_t val_r = apply_volume(apply_volume(cdda_sample_r, volume_m), volume_r);
1323
1324                 for(int i = 0; i < cnt; i++) {
1325                         *buffer++ += val_l; // L
1326                         *buffer++ += val_r; // R
1327                 }
1328         }
1329 }
1330
1331 void SCSI_CDROM::set_volume(int ch, int decibel_l, int decibel_r)
1332 {
1333         volume_l = decibel_to_volume(decibel_l + 3.0);
1334         volume_r = decibel_to_volume(decibel_r + 3.0);
1335 }
1336
1337 void SCSI_CDROM::set_volume(int volume)
1338 {
1339         volume_m = (int)(1024.0 * (max(0, min(100, volume)) / 100.0));
1340 }
1341
1342 #define STATE_VERSION   4
1343
1344 // Q: If loading state when using another (saved) image? 20181013 K.O
1345 //    May need close() and open() (or ...?).
1346 bool SCSI_CDROM::process_state(FILEIO* state_fio, bool loading)
1347 {
1348         uint32_t offset = 0;
1349
1350         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
1351                 return false;
1352         }
1353         if(!state_fio->StateCheckInt32(this_device_id)) {
1354                 return false;
1355         }
1356         state_fio->StateValue(cdda_start_frame);
1357         state_fio->StateValue(cdda_end_frame);
1358         state_fio->StateValue(cdda_playing_frame);
1359         state_fio->StateValue(cdda_status);
1360         state_fio->StateValue(cdda_repeat);
1361         state_fio->StateValue(cdda_interrupt);
1362         state_fio->StateArray(cdda_buffer, sizeof(cdda_buffer), 1);
1363         state_fio->StateValue(cdda_buffer_ptr);
1364         state_fio->StateValue(cdda_sample_l);
1365         state_fio->StateValue(cdda_sample_r);
1366         state_fio->StateValue(event_cdda);
1367         state_fio->StateValue(event_cdda_delay_play);
1368         state_fio->StateValue(event_delay_interrupt);
1369         state_fio->StateValue(read_sectors);
1370 //      state_fio->StateValue(mix_loop_num);
1371         state_fio->StateValue(volume_m);
1372         if(loading) {
1373                 offset = state_fio->FgetUint32_LE();
1374         } else {
1375                 if(fio_img->IsOpened()) {
1376                         offset = fio_img->Ftell();
1377                 }
1378                 state_fio->FputUint32_LE(offset);
1379         }
1380
1381         state_fio->StateValue(is_cue);
1382         state_fio->StateValue(current_track);
1383         // ToDo: Re-Open Image.20181118 K.O
1384         // post process
1385         if(loading && fio_img->IsOpened()) {
1386                 fio_img->Fseek(offset, FILEIO_SEEK_SET);
1387         }
1388         return SCSI_DEV::process_state(state_fio, loading);
1389 }