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- #include <sys/stat.h>
- #include "cd_file.h"
- #include "../PicoInt.h"
- #define cdprintf dprintf
- //#define cdprintf(x...)
- #define DEBUG_CD
- void FILE_End(void)
- {
- Unload_ISO();
- }
- int Load_ISO(const char *iso_name, int is_bin)
- {
- int i, j, num_track, Cur_LBA, index, ret, iso_name_len;
- _scd_track *Tracks = Pico_mcd->TOC.Tracks;
- char tmp_name[1024], tmp_ext[10];
- pm_file *pmf;
- static char *exts[] = {
- "%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3",
- "%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3",
- "%02d.MP3", " %02d.MP3", "-%02d.MP3", "_%02d.MP3", " - %02d.MP3",
- /* "%02d.wav", " %02d.wav", "-%02d.wav", "_%02d.wav", " - %02d.wav",
- "%d.wav", " %d.wav", "-%d.wav", "_%d.wav", " - %2d.wav" */
- };
- Unload_ISO();
- Tracks[0].ftype = is_bin ? TYPE_BIN : TYPE_ISO;
- Tracks[0].F = pmf = pm_open(iso_name);
- if (Tracks[0].F == NULL)
- {
- Tracks[0].ftype = 0;
- Tracks[0].Length = 0;
- return -1;
- }
- if (Tracks[0].ftype == TYPE_ISO)
- Tracks[0].Length = pmf->size >>= 11; // size in sectors
- else Tracks[0].Length = pmf->size /= 2352;
- Tracks[0].MSF.M = 0; // minutes
- Tracks[0].MSF.S = 2; // seconds
- Tracks[0].MSF.F = 0; // frames
- cdprintf("Track 0 - %02d:%02d:%02d DATA", Tracks[0].MSF.M, Tracks[0].MSF.S, Tracks[0].MSF.F);
- Cur_LBA = Tracks[0].Length; // Size in sectors
- iso_name_len = strlen(iso_name);
- for (num_track = 2, i = 0; i < 100; i++)
- {
- for(j = 0; j < sizeof(exts)/sizeof(char *); j++)
- {
- int ext_len;
- FILE *tmp_file;
- sprintf(tmp_ext, exts[j], i);
- ext_len = strlen(tmp_ext);
- memcpy(tmp_name, iso_name, iso_name_len + 1);
- tmp_name[iso_name_len - 4] = 0;
- strcat(tmp_name, tmp_ext);
- tmp_file = fopen(tmp_name, "rb");
- if (!tmp_file && i > 1 && iso_name_len > ext_len) {
- tmp_name[iso_name_len - ext_len] = 0;
- strcat(tmp_name, tmp_ext);
- tmp_file = fopen(tmp_name, "rb");
- }
- if (tmp_file)
- {
- int fs;
- struct stat file_stat;
- index = num_track - 1;
- ret = stat(tmp_name, &file_stat);
- fs = file_stat.st_size; // used to calculate lenght
- Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs);
- Tracks[index].KBtps >>= 3;
- if (ret != 0 || Tracks[index].KBtps <= 0)
- {
- cdprintf("Error track %i: stat %i, rate %i", index, ret, Tracks[index].KBtps);
- fclose(tmp_file);
- continue;
- }
- Tracks[index].F = tmp_file;
- LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
- // MP3 File
- Tracks[index].ftype = TYPE_MP3;
- fs *= 75;
- fs /= Tracks[index].KBtps * 1000;
- Tracks[index].Length = fs;
- Cur_LBA += Tracks[index].Length;
- cdprintf("Track %i: %s - %02d:%02d:%02d len=%i AUDIO", index, tmp_name, Tracks[index].MSF.M,
- Tracks[index].MSF.S, Tracks[index].MSF.F, fs);
- num_track++;
- break;
- }
- }
- }
- Pico_mcd->TOC.Last_Track = num_track - 1;
- index = num_track - 1;
- LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
- cdprintf("End CD - %02d:%02d:%02d\n\n", Tracks[index].MSF.M,
- Tracks[index].MSF.S, Tracks[index].MSF.F);
- return 0;
- }
- void Unload_ISO(void)
- {
- int i;
- if (Pico_mcd == NULL) return;
- if (Pico_mcd->TOC.Tracks[0].F) pm_close(Pico_mcd->TOC.Tracks[0].F);
- for(i = 1; i < 100; i++)
- {
- if (Pico_mcd->TOC.Tracks[i].F) fclose(Pico_mcd->TOC.Tracks[i].F);
- }
- memset(Pico_mcd->TOC.Tracks, 0, sizeof(Pico_mcd->TOC.Tracks));
- }
- int FILE_Read_One_LBA_CDC(void)
- {
- int where_read = 0;
- // static char cp_buf[2560];
- if (Pico_mcd->s68k_regs[0x36] & 1) // DATA
- {
- if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1;
- if (Pico_mcd->scd.Cur_LBA < 0)
- where_read = 0;
- else if (Pico_mcd->scd.Cur_LBA >= Pico_mcd->TOC.Tracks[0].Length)
- where_read = Pico_mcd->TOC.Tracks[0].Length - 1;
- else where_read = Pico_mcd->scd.Cur_LBA;
- if (Pico_mcd->TOC.Tracks[0].ftype == TYPE_ISO) where_read <<= 11;
- else where_read = (where_read * 2352 + 16);
- // moved below..
- //fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
- //fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F);
- cdprintf("Read file CDC 1 data sector :\n");
- }
- else // AUDIO
- {
- // int rate, channel;
- if (Pico_mcd->TOC.Tracks[Pico_mcd->scd.Cur_Track - 1].ftype == TYPE_MP3)
- {
- // TODO
- // MP3_Update(cp_buf, &rate, &channel, 0);
- // Write_CD_Audio((short *) cp_buf, rate, channel, 588);
- }
- cdprintf("Read file CDC 1 audio sector :\n");
- }
- // Update CDC stuff
- CDC_Update_Header();
- if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track
- {
- if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
- {
- if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
- {
- // CAUTION : lookahead bit not implemented
- Pico_mcd->scd.Cur_LBA++;
- Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
- Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
- *(unsigned int *)(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N) = Pico_mcd->cdc.HEAD.N;
- //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
- pm_seek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
- pm_read(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 2048, Pico_mcd->TOC.Tracks[0].F);
- #ifdef DEBUG_CD
- cdprintf("Read -> WA = %d Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
- cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0,
- Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3);
- cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n",
- Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF],
- Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF],
- Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF],
- Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF],
- Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF],
- Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]);
- #endif
- }
- }
- }
- else // music track
- {
- Pico_mcd->scd.Cur_LBA++;
- Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
- Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
- if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
- {
- if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
- {
- // CAUTION : lookahead bit not implemented
- //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352);
- }
- }
- }
- if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
- {
- Pico_mcd->cdc.STAT.B.B0 = 0x80;
- if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ?
- {
- Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08;
- }
- else
- {
- Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C;
- }
- if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20; // ECC done
- else Pico_mcd->cdc.STAT.B.B3 = 0x00; // ECC not done
- if (Pico_mcd->cdc.IFCTRL & 0x20)
- {
- if (Pico_mcd->s68k_regs[0x33] & (1<<5))
- {
- dprintf("cdc dec irq 5");
- SekInterruptS68k(5);
- }
- Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen
- Pico_mcd->cdc.Decode_Reg_Read = 0; // Reset read after DEC int
- }
- }
- return 0;
- }
- int FILE_Play_CD_LBA(void)
- {
- int index = Pico_mcd->scd.Cur_Track - 1;
- Pico_mcd->m.audio_track = index;
- cdprintf("Play track #%i", Pico_mcd->scd.Cur_Track);
- if (Pico_mcd->TOC.Tracks[index].F == NULL)
- {
- return 1;
- }
- if (Pico_mcd->TOC.Tracks[index].ftype == TYPE_MP3)
- {
- int pos1024 = 0;
- int Track_LBA_Pos = Pico_mcd->scd.Cur_LBA - Track_to_LBA(Pico_mcd->scd.Cur_Track);
- if (Track_LBA_Pos < 0) Track_LBA_Pos = 0;
- if (Track_LBA_Pos)
- pos1024 = Track_LBA_Pos * 1024 / Pico_mcd->TOC.Tracks[index].Length;
- mp3_start_play(Pico_mcd->TOC.Tracks[index].F, pos1024);
- }
- else
- {
- return 3;
- }
- return 0;
- }
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