#include #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; }