mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 15:27:46 -04:00
332 lines
8.1 KiB
C
332 lines
8.1 KiB
C
#include <sys/stat.h>
|
|
#include "cd_file.h"
|
|
|
|
#include "../PicoInt.h"
|
|
|
|
#define cdprintf dprintf
|
|
//#define cdprintf(x...)
|
|
#define DEBUG_CD
|
|
|
|
// TODO: check refs, move 2 context
|
|
struct _file_track Tracks[100];
|
|
char Track_Played;
|
|
|
|
|
|
int FILE_Init(void)
|
|
{
|
|
// MP3_Init(); // TODO
|
|
Unload_ISO();
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void FILE_End(void)
|
|
{
|
|
Unload_ISO();
|
|
}
|
|
|
|
|
|
int Load_ISO(const char *iso_name, int is_bin)
|
|
{
|
|
struct stat file_stat;
|
|
int i, j, num_track, Cur_LBA, index, ret, iso_name_len;
|
|
_scd_track *SCD_TOC_Tracks = Pico_mcd->scd.TOC.Tracks;
|
|
FILE *tmp_file;
|
|
char tmp_name[1024], tmp_ext[10];
|
|
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].Type = is_bin ? TYPE_BIN : TYPE_ISO;
|
|
|
|
ret = stat(iso_name, &file_stat);
|
|
if (ret != 0) return -1;
|
|
|
|
Tracks[0].Length = file_stat.st_size;
|
|
|
|
if (Tracks[0].Type == TYPE_ISO) Tracks[0].Length >>= 11; // size in sectors
|
|
else Tracks[0].Length /= 2352; // size in sectors
|
|
|
|
|
|
Tracks[0].F = fopen(iso_name, "rb");
|
|
if (Tracks[0].F == NULL)
|
|
{
|
|
Tracks[0].Type = 0;
|
|
Tracks[0].Length = 0;
|
|
return -1;
|
|
}
|
|
|
|
if (Tracks[0].Type == TYPE_ISO) fseek(Tracks[0].F, 0x100, SEEK_SET);
|
|
else fseek(Tracks[0].F, 0x110, SEEK_SET);
|
|
|
|
// fread(buf, 1, 0x200, Tracks[0].F);
|
|
fseek(Tracks[0].F, 0, SEEK_SET);
|
|
|
|
Pico_mcd->scd.TOC.First_Track = 1;
|
|
|
|
SCD_TOC_Tracks[0].Num = 1;
|
|
SCD_TOC_Tracks[0].Type = 1; // DATA
|
|
|
|
SCD_TOC_Tracks[0].MSF.M = 0; // minutes
|
|
SCD_TOC_Tracks[0].MSF.S = 2; // seconds
|
|
SCD_TOC_Tracks[0].MSF.F = 0; // frames
|
|
|
|
cdprintf("Track 0 - %02d:%02d:%02d %s", SCD_TOC_Tracks[0].MSF.M, SCD_TOC_Tracks[0].MSF.S, SCD_TOC_Tracks[0].MSF.F,
|
|
SCD_TOC_Tracks[0].Type ? "DATA" : "AUDIO");
|
|
|
|
Cur_LBA = Tracks[0].Length; // Size in sectors
|
|
|
|
strcpy(tmp_name, iso_name);
|
|
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;
|
|
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)
|
|
{
|
|
// float fs;
|
|
int fs;
|
|
index = num_track - Pico_mcd->scd.TOC.First_Track;
|
|
|
|
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;
|
|
|
|
SCD_TOC_Tracks[index].Num = num_track;
|
|
SCD_TOC_Tracks[index].Type = 0; // AUDIO
|
|
|
|
LBA_to_MSF(Cur_LBA, &(SCD_TOC_Tracks[index].MSF));
|
|
|
|
// MP3 File
|
|
Tracks[index].Type = 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 %s", index, tmp_name, SCD_TOC_Tracks[index].MSF.M,
|
|
SCD_TOC_Tracks[index].MSF.S, SCD_TOC_Tracks[index].MSF.F, fs,
|
|
SCD_TOC_Tracks[index].Type ? "DATA" : "AUDIO");
|
|
|
|
num_track++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
Pico_mcd->scd.TOC.Last_Track = num_track - 1;
|
|
|
|
index = num_track - Pico_mcd->scd.TOC.First_Track;
|
|
SCD_TOC_Tracks[index].Num = num_track;
|
|
SCD_TOC_Tracks[index].Type = 0;
|
|
|
|
LBA_to_MSF(Cur_LBA, &(SCD_TOC_Tracks[index].MSF));
|
|
|
|
cdprintf("End CD - %02d:%02d:%02d\n\n", SCD_TOC_Tracks[index].MSF.M,
|
|
SCD_TOC_Tracks[index].MSF.S, SCD_TOC_Tracks[index].MSF.F);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void Unload_ISO(void)
|
|
{
|
|
int i;
|
|
|
|
Track_Played = 99;
|
|
|
|
for(i = 0; i < 100; i++)
|
|
{
|
|
if (Tracks[i].F) fclose(Tracks[i].F);
|
|
Tracks[i].F = NULL;
|
|
Tracks[i].Length = 0;
|
|
Tracks[i].Type = 0;
|
|
}
|
|
}
|
|
|
|
|
|
int FILE_Read_One_LBA_CDC(void)
|
|
{
|
|
int where_read;
|
|
static char cp_buf[2560];
|
|
|
|
if (Pico_mcd->s68k_regs[0x36] & 1) // DATA
|
|
{
|
|
if (Tracks[0].F == NULL) return -1;
|
|
|
|
if (Pico_mcd->scd.Cur_LBA < 0) where_read = 0;
|
|
else if (Pico_mcd->scd.Cur_LBA >= Tracks[0].Length) where_read = Tracks[0].Length - 1;
|
|
else where_read = Pico_mcd->scd.Cur_LBA;
|
|
|
|
if (Tracks[0].Type == TYPE_ISO) where_read <<= 11;
|
|
else where_read = (where_read * 2352 + 16);
|
|
|
|
fseek(Tracks[0].F, where_read, SEEK_SET);
|
|
fread(cp_buf, 1, 2048, Tracks[0].F);
|
|
|
|
cdprintf("Read file CDC 1 data sector :\n");
|
|
}
|
|
else // AUDIO
|
|
{
|
|
// int rate, channel;
|
|
|
|
if (Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type == 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;
|
|
|
|
memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
|
|
memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], &Pico_mcd->cdc.HEAD, 4);
|
|
|
|
#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
|
|
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 - Pico_mcd->scd.TOC.First_Track;
|
|
|
|
cdprintf("Play FILE Comp");
|
|
|
|
if (Tracks[index].F == NULL)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
if (Tracks[index].Type == TYPE_MP3)
|
|
{
|
|
int pos1000 = 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)
|
|
pos1000 = Track_LBA_Pos * 1024 / Tracks[index].Length;
|
|
|
|
mp3_start_play(Tracks[index].F, pos1000);
|
|
}
|
|
else
|
|
{
|
|
return 3;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|