pico/cd/cd_file.c

   1 /***********************************************************
   2  *                                                         *
   3  * This source was taken from the Gens project             *
   4  * Written by Stéphane Dallongeville                       *
   5  * Copyright (c) 2002 by Stéphane Dallongeville            *
   6  * Modified/adapted for PicoDrive by notaz, 2007           *
   7  *                                                         *
   8  ***********************************************************/
   9
  10 #include "../pico_int.h"
  11 #include "cd_file.h"
  12 #include "cue.h"
  13
  14 //#define cdprintf(f,...) printf(f "\n",##__VA_ARGS__) // tmp
  15
  16 static void to_upper(char *d, const char *s)
  17 {
  18         for (; *s != 0; d++, s++) {
  19                 if ('a' <= *s && *s <= 'z')
  20                         *d = *s - 'a' + 'A';
  21                 else
  22                         *d = *s;
  23         }
  24 }
  25
  26 static int audio_track_mp3(const char *fname, int index)
  27 {
  28         _scd_track *Tracks = Pico_mcd->TOC.Tracks;
  29         FILE *tmp_file;
  30         int fs, ret;
  31
  32         tmp_file = fopen(fname, "rb");
  33         if (tmp_file == NULL)
  34                 return -1;
  35
  36         ret = fseek(tmp_file, 0, SEEK_END);
  37         fs = ftell(tmp_file);                           // used to calculate length
  38         fseek(tmp_file, 0, SEEK_SET);
  39
  40 #ifdef _PSP_FW_VERSION
  41         // some systems (like PSP) can't have many open files at a time,
  42         // so we work with their names instead.
  43         fclose(tmp_file);
  44         tmp_file = (void *) strdup(fname);
  45 #endif
  46         Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs);
  47         Tracks[index].KBtps >>= 3;
  48         if (ret != 0 || Tracks[index].KBtps <= 0)
  49         {
  50                 elprintf(EL_STATUS, "track %2i: mp3 bitrate %i", index+1, Tracks[index].KBtps);
  51 #ifdef _PSP_FW_VERSION
  52                 free(tmp_file);
  53 #else
  54                 fclose(tmp_file);
  55 #endif
  56                 return -1;
  57         }
  58
  59         Tracks[index].F = tmp_file;
  60
  61         // MP3 File
  62         Tracks[index].ftype = CT_MP3;
  63         fs *= 75;
  64         fs /= Tracks[index].KBtps * 1000;
  65         Tracks[index].Length = fs;
  66         Tracks[index].Offset = 0;
  67
  68         return 0;
  69 }
  70
  71 PICO_INTERNAL int Load_CD_Image(const char *cd_img_name, cd_img_type type)
  72 {
  73         int i, j, num_track, Cur_LBA, index, ret;
  74         int iso_name_len, missed, cd_img_sectors;
  75         _scd_track *Tracks = Pico_mcd->TOC.Tracks;
  76         char tmp_name[256], tmp_ext[10], tmp_ext_u[10];
  77         cue_data_t *cue_data = NULL;
  78         pm_file *pmf;
  79         static const char *exts[] = {
  80                 "%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3",
  81                 "%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3",
  82         };
  83
  84         if (PicoCDLoadProgressCB != NULL)
  85                 PicoCDLoadProgressCB(cd_img_name, 1);
  86
  87         Unload_ISO();
  88
  89         /* is this a .cue? */
  90         cue_data = cue_parse(cd_img_name);
  91         if (cue_data != NULL) {
  92                 cd_img_name = cue_data->tracks[1].fname;
  93                 Tracks[0].ftype = cue_data->tracks[1].type;
  94         }
  95         else
  96                 Tracks[0].ftype = type == CIT_BIN ? CT_BIN : CT_ISO;
  97
  98         Tracks[0].F = pmf = pm_open(cd_img_name);
  99         if (Tracks[0].F == NULL)
 100         {
 101                 Tracks[0].ftype = 0;
 102                 Tracks[0].Length = 0;
 103                 if (cue_data != NULL)
 104                         cue_destroy(cue_data);
 105                 return -1;
 106         }
 107
 108         if (Tracks[0].ftype == CT_ISO)
 109              cd_img_sectors = pmf->size >>= 11; // size in sectors
 110         else cd_img_sectors = pmf->size /= 2352;
 111         Tracks[0].Offset = 0;
 112
 113         Tracks[0].MSF.M = 0; // minutes
 114         Tracks[0].MSF.S = 2; // seconds
 115         Tracks[0].MSF.F = 0; // frames
 116
 117         elprintf(EL_STATUS, "Track  1: %02d:%02d:%02d %9i DATA  %s",
 118                 Tracks[0].MSF.M, Tracks[0].MSF.S, Tracks[0].MSF.F,
 119                 Tracks[0].Length, cd_img_name);
 120
 121         Cur_LBA = Tracks[0].Length = cd_img_sectors;
 122
 123         if (cue_data != NULL)
 124         {
 125                 if (cue_data->tracks[2].fname == NULL) { // NULL means track2 is in same file as track1
 126                         Cur_LBA = Tracks[0].Length = cue_data->tracks[2].sector_offset;
 127                 }
 128                 i = 100 / cue_data->track_count+1;
 129                 for (num_track = 2; num_track <= cue_data->track_count; num_track++)
 130                 {
 131                         if (PicoCDLoadProgressCB != NULL)
 132                                 PicoCDLoadProgressCB(cd_img_name, i * num_track);
 133                         index = num_track - 1;
 134                         Cur_LBA += cue_data->tracks[num_track].pregap;
 135                         if (cue_data->tracks[num_track].type == CT_MP3) {
 136                                 ret = audio_track_mp3(cue_data->tracks[num_track].fname, index);
 137                                 if (ret != 0) break;
 138                         }
 139                         else
 140                         {
 141                                 Tracks[index].ftype = cue_data->tracks[num_track].type;
 142                                 if (cue_data->tracks[num_track].fname != NULL)
 143                                 {
 144                                         pm_file *pmfn = pm_open(cue_data->tracks[num_track].fname);
 145                                         if (pmfn != NULL)
 146                                         {
 147                                                 // addume raw, ignore header for wav..
 148                                                 Tracks[index].F = pmfn;
 149                                                 Tracks[index].Length = pmfn->size / 2352;
 150                                                 Tracks[index].Offset = cue_data->tracks[num_track].sector_offset;
 151                                         }
 152                                         else
 153                                         {
 154                                                 elprintf(EL_STATUS, "track %2i (%s): can't determine length",
 155                                                         num_track, cue_data->tracks[num_track].fname);
 156                                                 Tracks[index].Length = 2*75;
 157                                                 Tracks[index].Offset = 0;
 158                                         }
 159                                 }
 160                                 else
 161                                 {
 162                                         if (num_track < cue_data->track_count)
 163                                                 Tracks[index].Length = cue_data->tracks[num_track+1].sector_offset -
 164                                                         cue_data->tracks[num_track].sector_offset;
 165                                         else
 166                                                 Tracks[index].Length = cd_img_sectors - cue_data->tracks[num_track].sector_offset;
 167                                         Tracks[index].Offset = cue_data->tracks[num_track].sector_offset;
 168                                 }
 169                         }
 170
 171                         if (cue_data->tracks[num_track].sector_xlength != 0)
 172                                 // overriden by custom cue command
 173                                 Tracks[index].Length = cue_data->tracks[num_track].sector_xlength;
 174
 175                         LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
 176                         Cur_LBA += Tracks[index].Length;
 177
 178                         elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO %s", num_track, Tracks[index].MSF.M,
 179                                 Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length,
 180                                 cue_data->tracks[num_track].fname);
 181                 }
 182                 cue_destroy(cue_data);
 183                 goto finish;
 184         }
 185
 186         /* mp3 track autosearch, Gens-like */
 187         iso_name_len = strlen(cd_img_name);
 188         if (iso_name_len >= sizeof(tmp_name))
 189                 iso_name_len = sizeof(tmp_name) - 1;
 190
 191         for (num_track = 2, i = 0, missed = 0; i < 100 && missed < 4; i++)
 192         {
 193                 if (PicoCDLoadProgressCB != NULL && i > 1)
 194                         PicoCDLoadProgressCB(cd_img_name, i + (100-i)*missed/4);
 195
 196                 for (j = 0; j < sizeof(exts)/sizeof(char *); j++)
 197                 {
 198                         int ext_len;
 199                         char *p;
 200
 201                         index = num_track - 1;
 202
 203                         sprintf(tmp_ext, exts[j], i);
 204                         ext_len = strlen(tmp_ext);
 205                         to_upper(tmp_ext_u, tmp_ext);
 206
 207                         memcpy(tmp_name, cd_img_name, iso_name_len + 1);
 208                         p = tmp_name + iso_name_len - 4;
 209
 210                         strcpy(p, tmp_ext);
 211                         ret = audio_track_mp3(tmp_name, index);
 212                         if (ret != 0) {
 213                                 strcpy(p, tmp_ext_u);
 214                                 ret = audio_track_mp3(tmp_name, index);
 215                         }
 216
 217                         if (ret != 0 && i > 1 && iso_name_len > ext_len) {
 218                                 p = tmp_name + iso_name_len - ext_len;
 219                                 strcpy(p, tmp_ext);
 220                                 ret = audio_track_mp3(tmp_name, index);
 221                                 if (ret != 0) {
 222                                         strcpy(p, tmp_ext_u);
 223                                         ret = audio_track_mp3(tmp_name, index);
 224                                 }
 225                         }
 226
 227                         if (ret == 0)
 228                         {
 229                                 LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
 230                                 Cur_LBA += Tracks[index].Length;
 231
 232                                 elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", num_track, Tracks[index].MSF.M,
 233                                         Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length, tmp_name);
 234
 235                                 num_track++;
 236                                 missed = 0;
 237                                 break;
 238                         }
 239                 }
 240                 if (ret != 0 && i > 1) missed++;
 241         }
 242
 243 finish:
 244         Pico_mcd->TOC.Last_Track = num_track - 1;
 245
 246         index = num_track - 1;
 247
 248         LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
 249
 250         elprintf(EL_STATUS, "End CD -  %02d:%02d:%02d\n", Tracks[index].MSF.M,
 251                 Tracks[index].MSF.S, Tracks[index].MSF.F);
 252
 253         if (PicoCDLoadProgressCB != NULL)
 254                 PicoCDLoadProgressCB(cd_img_name, 100);
 255
 256         return 0;
 257 }
 258
 259
 260 PICO_INTERNAL void Unload_ISO(void)
 261 {
 262         int i;
 263
 264         if (Pico_mcd == NULL) return;
 265
 266         if (Pico_mcd->TOC.Tracks[0].F) pm_close(Pico_mcd->TOC.Tracks[0].F);
 267
 268         for(i = 1; i < 100; i++)
 269         {
 270                 if (Pico_mcd->TOC.Tracks[i].F != NULL)
 271                 {
 272                         if (Pico_mcd->TOC.Tracks[i].ftype == CT_MP3)
 273 #ifdef _PSP_FW_VERSION
 274                                 free(Pico_mcd->TOC.Tracks[i].F);
 275 #else
 276                                 fclose(Pico_mcd->TOC.Tracks[i].F);
 277 #endif
 278                         else
 279                                 pm_close(Pico_mcd->TOC.Tracks[i].F);
 280                 }
 281         }
 282         memset(Pico_mcd->TOC.Tracks, 0, sizeof(Pico_mcd->TOC.Tracks));
 283 }
 284
 285 #if 1*0
 286
 287 PICO_INTERNAL int FILE_Read_One_LBA_CDC(void)
 288 {
 289         if (Pico_mcd->s68k_regs[0x36] & 1)                                      // DATA
 290         {
 291                 if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1;
 292
 293                 // moved below..
 294                 //fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
 295                 //fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F);
 296
 297                 cdprintf("Read file CDC 1 data sector :\n");
 298         }
 299         else                                                                    // AUDIO
 300         {
 301                 cdprintf("Read file CDC 1 audio sector :\n");
 302         }
 303
 304         // Update CDC stuff
 305
 306         CDC_Update_Header();
 307
 308         if (Pico_mcd->s68k_regs[0x36] & 1)              // DATA track
 309         {
 310                 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80)             // DECEN = decoding enable
 311                 {
 312                         if (Pico_mcd->cdc.CTRL.B.B0 & 0x04)     // WRRQ : this bit enable write to buffer
 313                         {
 314                                 int where_read = 0;
 315
 316                                 // CAUTION : lookahead bit not implemented
 317
 318                                 if (Pico_mcd->scd.Cur_LBA < 0)
 319                                         where_read = 0;
 320                                 else if (Pico_mcd->scd.Cur_LBA >= Pico_mcd->TOC.Tracks[0].Length)
 321                                         where_read = Pico_mcd->TOC.Tracks[0].Length - 1;
 322                                 else where_read = Pico_mcd->scd.Cur_LBA;
 323
 324                                 Pico_mcd->scd.Cur_LBA++;
 325
 326                                 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF;              // add one sector to WA
 327                                 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
 328
 329                                 *(unsigned int *)(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N) = Pico_mcd->cdc.HEAD.N;
 330                                 //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
 331
 332                                 //pm_seek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
 333                                 //pm_read(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 2048, Pico_mcd->TOC.Tracks[0].F);
 334                                 PicoCDBufferRead(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, where_read);
 335
 336                                 cdprintf("Read -> WA = %d  Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
 337                                 cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0,
 338                                         Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3);
 339                                 cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n",
 340                                         Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF],
 341                                         Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF],
 342                                         Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF],
 343                                         Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF],
 344                                         Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF],
 345                                         Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]);
 346                         }
 347
 348                 }
 349         }
 350         else            // music track
 351         {
 352                 Pico_mcd->scd.Cur_LBA++;
 353
 354                 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF;              // add one sector to WA
 355                 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
 356
 357                 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80)             // DECEN = decoding enable
 358                 {
 359                         if (Pico_mcd->cdc.CTRL.B.B0 & 0x04)     // WRRQ : this bit enable write to buffer
 360                         {
 361                                 // CAUTION : lookahead bit not implemented
 362
 363                                 // this is pretty rough, but oh well - not much depends on this anyway
 364                                 memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cdda_out_buffer, 2352);
 365                         }
 366                 }
 367         }
 368
 369         if (Pico_mcd->cdc.CTRL.B.B0 & 0x80)             // DECEN = decoding enable
 370         {
 371                 Pico_mcd->cdc.STAT.B.B0 = 0x80;
 372
 373                 if (Pico_mcd->cdc.CTRL.B.B0 & 0x10)     // determine form bit form sub header ?
 374                 {
 375                         Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08;
 376                 }
 377                 else
 378                 {
 379                         Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C;
 380                 }
 381
 382                 if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20;     // ECC done
 383                 else Pico_mcd->cdc.STAT.B.B3 = 0x00;    // ECC not done
 384
 385                 if (Pico_mcd->cdc.IFCTRL & 0x20)
 386                 {
 387                         if (Pico_mcd->s68k_regs[0x33] & (1<<5))
 388                         {
 389                                 elprintf(EL_INTS, "cdc dec irq 5");
 390                                 SekInterruptS68k(5);
 391                         }
 392
 393                         Pico_mcd->cdc.IFSTAT &= ~0x20;          // DEC interrupt happen
 394                         Pico_mcd->cdc.Decode_Reg_Read = 0;      // Reset read after DEC int
 395                 }
 396         }
 397
 398
 399         return 0;
 400 }
 401
 402 #endif