[picodrive.git] / Pico / cd / cd_file.c

/***********************************************************
 *                                                         *
 * This source was taken from the Gens project             *
 * Written by Stéphane Dallongeville                       *
 * Copyright (c) 2002 by Stéphane Dallongeville            *
 * Modified/adapted for PicoDrive by notaz, 2007           *
 *                                                         *
 ***********************************************************/

#include "../PicoInt.h"
#include "cd_file.h"
#include "cue.h"

//#define cdprintf(f,...) printf(f "\n",##__VA_ARGS__) // tmp

static int audio_track_mp3(const char *fname, int index)
{
	_scd_track *Tracks = Pico_mcd->TOC.Tracks;
	FILE *tmp_file;
	int fs, ret;

	tmp_file = fopen(fname, "rb");
	if (tmp_file == NULL)
		return -1;

	ret = fseek(tmp_file, 0, SEEK_END);
	fs = ftell(tmp_file);				// used to calculate length
	fseek(tmp_file, 0, SEEK_SET);

#if DONT_OPEN_MANY_FILES
	// some systems (like PSP) can't have many open files at a time,
	// so we work with their names instead.
	fclose(tmp_file);
	tmp_file = (void *) strdup(fname);
#endif
	Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs);
	Tracks[index].KBtps >>= 3;
	if (ret != 0 || Tracks[index].KBtps <= 0)
	{
		elprintf(EL_STATUS, "track %2i: mp3 bitrate %i", index+1, Tracks[index].KBtps);
#if !DONT_OPEN_MANY_FILES
		fclose(tmp_file);
#else
		free(tmp_file);
#endif
		return -1;
	}

	Tracks[index].F = tmp_file;

	// MP3 File
	Tracks[index].ftype = TYPE_MP3;
	fs *= 75;
	fs /= Tracks[index].KBtps * 1000;
	Tracks[index].Length = fs;
	Tracks[index].Offset = 0;

	return 0;
}

PICO_INTERNAL int Load_CD_Image(const char *cd_img_name, cd_img_type type)
{
	int i, j, num_track, Cur_LBA, index, ret, iso_name_len, missed, cd_img_sectors;
	_scd_track *Tracks = Pico_mcd->TOC.Tracks;
	char tmp_name[1024], tmp_ext[10];
	cue_data_t *cue_data = NULL;
	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",
#if CASE_SENSITIVE_FS
		"%02d.MP3", " %02d.MP3", "-%02d.MP3", "_%02d.MP3", " - %02d.MP3",
#endif
	};

	if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(1);

	Unload_ISO();

	/* is this .cue? */
	ret = strlen(cd_img_name);
	if (ret >= 3 && strcasecmp(cd_img_name + ret - 3, "cue") == 0)
		cue_data = cue_parse(cd_img_name);
	if (cue_data != NULL)
		cd_img_name = cue_data->tracks[1].fname;

	Tracks[0].ftype = type == CIT_BIN ? TYPE_BIN : TYPE_ISO;

	Tracks[0].F = pmf = pm_open(cd_img_name);
	if (Tracks[0].F == NULL)
	{
		Tracks[0].ftype = 0;
		Tracks[0].Length = 0;
		if (cue_data != NULL)
			cue_destroy(cue_data);
		return -1;
	}

	if (Tracks[0].ftype == TYPE_ISO)
	     cd_img_sectors = pmf->size >>= 11;	// size in sectors
	else cd_img_sectors = pmf->size /= 2352;
	Tracks[0].Offset = 0;

	Tracks[0].MSF.M = 0; // minutes
	Tracks[0].MSF.S = 2; // seconds
	Tracks[0].MSF.F = 0; // frames

	elprintf(EL_STATUS, "Track  0: %02d:%02d:%02d %9i DATA",
		Tracks[0].MSF.M, Tracks[0].MSF.S, Tracks[0].MSF.F, Tracks[0].Length);

	Cur_LBA = Tracks[0].Length = cd_img_sectors;

	if (cue_data != NULL)
	{
		if (cue_data->tracks[2].fname == NULL) { // NULL means track2 is in same file as track1
			Cur_LBA = Tracks[0].Length = cue_data->tracks[2].sector_offset;
		}
		for (num_track = 2; num_track <= cue_data->track_count; num_track++)
		{
			index = num_track - 1;
			Cur_LBA += cue_data->tracks[num_track].pregap;
			if (cue_data->tracks[num_track].type == CT_MP3) {
				ret = audio_track_mp3(cue_data->tracks[num_track].fname, index);
				if (ret != 0) break;
			}
			else
			{
				Tracks[index].ftype = cue_data->tracks[num_track].type;
				if (cue_data->tracks[num_track].fname != NULL)
				{
					Tracks[index].F = fopen(cue_data->tracks[num_track].fname, "rb");
					elprintf(EL_STATUS, "track %2i (%s): can't determine length",
						cue_data->tracks[num_track].fname);
					Tracks[index].Length = 2*75;
					Tracks[index].Offset = 0;
				} else {
					if (num_track < cue_data->track_count)
						Tracks[index].Length = cue_data->tracks[num_track+1].sector_offset -
							cue_data->tracks[num_track].sector_offset;
					else
						Tracks[index].Length = cd_img_sectors - cue_data->tracks[num_track].sector_offset;
					Tracks[index].Offset = cue_data->tracks[num_track].sector_offset;
				}
			}

			LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
			Cur_LBA += Tracks[index].Length;

			elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", index, Tracks[index].MSF.M,
				Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length,
				cue_data->tracks[num_track].fname);
		}
		cue_destroy(cue_data);
		goto finish;
	}

	/* track autosearch, Gens-like */
	iso_name_len = strlen(cd_img_name);
	if (iso_name_len >= sizeof(tmp_name))
		iso_name_len = sizeof(tmp_name) - 1;

	for (num_track = 2, i = 0, missed = 0; i < 100 && missed < 4; i++)
	{
		if (PicoCDLoadProgressCB != NULL && i > 1) PicoCDLoadProgressCB(i + (100-i)*missed/4);

		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, cd_img_name, iso_name_len + 1);
			tmp_name[iso_name_len - 4] = 0;
			strcat(tmp_name, tmp_ext);

			index = num_track - 1;
			ret = audio_track_mp3(tmp_name, index);
			if (ret != 0 && i > 1 && iso_name_len > ext_len) {
				tmp_name[iso_name_len - ext_len] = 0;
				strcat(tmp_name, tmp_ext);
				ret = audio_track_mp3(tmp_name, index);
			}

			if (ret == 0)
			{
				LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
				Cur_LBA += Tracks[index].Length;

				elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", index, Tracks[index].MSF.M,
					Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length, tmp_name);

				num_track++;
				missed = 0;
				break;
			}
		}
		if (ret != 0) missed++;
	}

finish:
	Pico_mcd->TOC.Last_Track = num_track - 1;

	index = num_track - 1;

	LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);

	elprintf(EL_STATUS, "End CD -  %02d:%02d:%02d\n", Tracks[index].MSF.M,
		Tracks[index].MSF.S, Tracks[index].MSF.F);

	if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(100);

	return 0;
}


PICO_INTERNAL 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 != NULL)
		{
#if DONT_OPEN_MANY_FILES
			if (Pico_mcd->TOC.Tracks[i].type == TYPE_MP3)
				free(Pico_mcd->TOC.Tracks[i].F);
			else
#endif
				fclose(Pico_mcd->TOC.Tracks[i].F);
		}
	}
	memset(Pico_mcd->TOC.Tracks, 0, sizeof(Pico_mcd->TOC.Tracks));
}


PICO_INTERNAL int FILE_Read_One_LBA_CDC(void)
{
//	static char cp_buf[2560];

	if (Pico_mcd->s68k_regs[0x36] & 1)					// DATA
	{
		if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1;

		// 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
			{
				int where_read = 0;

				// CAUTION : lookahead bit not implemented

				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;

				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);
				PicoCDBufferRead(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, where_read);

				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]);
			}

		}
	}
	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))
			{
				elprintf(EL_INTS, "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;
}


PICO_INTERNAL 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;
}
Commit	Line	Data
	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 "../PicoInt.h"
	11	#include "cd_file.h"
	12	#include "cue.h"
	13
	14	//#define cdprintf(f,...) printf(f "\n",##__VA_ARGS__) // tmp
	15
	16	static int audio_track_mp3(const char *fname, int index)
	17	{
	18	_scd_track *Tracks = Pico_mcd->TOC.Tracks;
	19	FILE *tmp_file;
	20	int fs, ret;
	21
	22	tmp_file = fopen(fname, "rb");
	23	if (tmp_file == NULL)
	24	return -1;
	25
	26	ret = fseek(tmp_file, 0, SEEK_END);
	27	fs = ftell(tmp_file); // used to calculate length
	28	fseek(tmp_file, 0, SEEK_SET);
	29
	30	#if DONT_OPEN_MANY_FILES
	31	// some systems (like PSP) can't have many open files at a time,
	32	// so we work with their names instead.
	33	fclose(tmp_file);
	34	tmp_file = (void *) strdup(fname);
	35	#endif
	36	Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs);
	37	Tracks[index].KBtps >>= 3;
	38	if (ret != 0 \|\| Tracks[index].KBtps <= 0)
	39	{
	40	elprintf(EL_STATUS, "track %2i: mp3 bitrate %i", index+1, Tracks[index].KBtps);
	41	#if !DONT_OPEN_MANY_FILES
	42	fclose(tmp_file);
	43	#else
	44	free(tmp_file);
	45	#endif
	46	return -1;
	47	}
	48
	49	Tracks[index].F = tmp_file;
	50
	51	// MP3 File
	52	Tracks[index].ftype = TYPE_MP3;
	53	fs *= 75;
	54	fs /= Tracks[index].KBtps * 1000;
	55	Tracks[index].Length = fs;
	56	Tracks[index].Offset = 0;
	57
	58	return 0;
	59	}
	60
	61	PICO_INTERNAL int Load_CD_Image(const char *cd_img_name, cd_img_type type)
	62	{
	63	int i, j, num_track, Cur_LBA, index, ret, iso_name_len, missed, cd_img_sectors;
	64	_scd_track *Tracks = Pico_mcd->TOC.Tracks;
	65	char tmp_name[1024], tmp_ext[10];
	66	cue_data_t *cue_data = NULL;
	67	pm_file *pmf;
	68	static char *exts[] = {
	69	"%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3",
	70	"%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3",
	71	#if CASE_SENSITIVE_FS
	72	"%02d.MP3", " %02d.MP3", "-%02d.MP3", "_%02d.MP3", " - %02d.MP3",
	73	#endif
	74	};
	75
	76	if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(1);
	77
	78	Unload_ISO();
	79
	80	/* is this .cue? */
	81	ret = strlen(cd_img_name);
	82	if (ret >= 3 && strcasecmp(cd_img_name + ret - 3, "cue") == 0)
	83	cue_data = cue_parse(cd_img_name);
	84	if (cue_data != NULL)
	85	cd_img_name = cue_data->tracks[1].fname;
	86
	87	Tracks[0].ftype = type == CIT_BIN ? TYPE_BIN : TYPE_ISO;
	88
	89	Tracks[0].F = pmf = pm_open(cd_img_name);
	90	if (Tracks[0].F == NULL)
	91	{
	92	Tracks[0].ftype = 0;
	93	Tracks[0].Length = 0;
	94	if (cue_data != NULL)
	95	cue_destroy(cue_data);
	96	return -1;
	97	}
	98
	99	if (Tracks[0].ftype == TYPE_ISO)
	100	cd_img_sectors = pmf->size >>= 11; // size in sectors
	101	else cd_img_sectors = pmf->size /= 2352;
	102	Tracks[0].Offset = 0;
	103
	104	Tracks[0].MSF.M = 0; // minutes
	105	Tracks[0].MSF.S = 2; // seconds
	106	Tracks[0].MSF.F = 0; // frames
	107
	108	elprintf(EL_STATUS, "Track 0: %02d:%02d:%02d %9i DATA",
	109	Tracks[0].MSF.M, Tracks[0].MSF.S, Tracks[0].MSF.F, Tracks[0].Length);
	110
	111	Cur_LBA = Tracks[0].Length = cd_img_sectors;
	112
	113	if (cue_data != NULL)
	114	{
	115	if (cue_data->tracks[2].fname == NULL) { // NULL means track2 is in same file as track1
	116	Cur_LBA = Tracks[0].Length = cue_data->tracks[2].sector_offset;
	117	}
	118	for (num_track = 2; num_track <= cue_data->track_count; num_track++)
	119	{
	120	index = num_track - 1;
	121	Cur_LBA += cue_data->tracks[num_track].pregap;
	122	if (cue_data->tracks[num_track].type == CT_MP3) {
	123	ret = audio_track_mp3(cue_data->tracks[num_track].fname, index);
	124	if (ret != 0) break;
	125	}
	126	else
	127	{
	128	Tracks[index].ftype = cue_data->tracks[num_track].type;
	129	if (cue_data->tracks[num_track].fname != NULL)
	130	{
	131	Tracks[index].F = fopen(cue_data->tracks[num_track].fname, "rb");
	132	elprintf(EL_STATUS, "track %2i (%s): can't determine length",
	133	cue_data->tracks[num_track].fname);
	134	Tracks[index].Length = 2*75;
	135	Tracks[index].Offset = 0;
	136	} else {
	137	if (num_track < cue_data->track_count)
	138	Tracks[index].Length = cue_data->tracks[num_track+1].sector_offset -
	139	cue_data->tracks[num_track].sector_offset;
	140	else
	141	Tracks[index].Length = cd_img_sectors - cue_data->tracks[num_track].sector_offset;
	142	Tracks[index].Offset = cue_data->tracks[num_track].sector_offset;
	143	}
	144	}
	145
	146	LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
	147	Cur_LBA += Tracks[index].Length;
	148
	149	elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", index, Tracks[index].MSF.M,
	150	Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length,
	151	cue_data->tracks[num_track].fname);
	152	}
	153	cue_destroy(cue_data);
	154	goto finish;
	155	}
	156
	157	/* track autosearch, Gens-like */
	158	iso_name_len = strlen(cd_img_name);
	159	if (iso_name_len >= sizeof(tmp_name))
	160	iso_name_len = sizeof(tmp_name) - 1;
	161
	162	for (num_track = 2, i = 0, missed = 0; i < 100 && missed < 4; i++)
	163	{
	164	if (PicoCDLoadProgressCB != NULL && i > 1) PicoCDLoadProgressCB(i + (100-i)*missed/4);
	165
	166	for (j = 0; j < sizeof(exts)/sizeof(char *); j++)
	167	{
	168	int ext_len;
	169	sprintf(tmp_ext, exts[j], i);
	170	ext_len = strlen(tmp_ext);
	171
	172	memcpy(tmp_name, cd_img_name, iso_name_len + 1);
	173	tmp_name[iso_name_len - 4] = 0;
	174	strcat(tmp_name, tmp_ext);
	175
	176	index = num_track - 1;
	177	ret = audio_track_mp3(tmp_name, index);
	178	if (ret != 0 && i > 1 && iso_name_len > ext_len) {
	179	tmp_name[iso_name_len - ext_len] = 0;
	180	strcat(tmp_name, tmp_ext);
	181	ret = audio_track_mp3(tmp_name, index);
	182	}
	183
	184	if (ret == 0)
	185	{
	186	LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
	187	Cur_LBA += Tracks[index].Length;
	188
	189	elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", index, Tracks[index].MSF.M,
	190	Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length, tmp_name);
	191
	192	num_track++;
	193	missed = 0;
	194	break;
	195	}
	196	}
	197	if (ret != 0) missed++;
	198	}
	199
	200	finish:
	201	Pico_mcd->TOC.Last_Track = num_track - 1;
	202
	203	index = num_track - 1;
	204
	205	LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
	206
	207	elprintf(EL_STATUS, "End CD - %02d:%02d:%02d\n", Tracks[index].MSF.M,
	208	Tracks[index].MSF.S, Tracks[index].MSF.F);
	209
	210	if (PicoCDLoadProgressCB != NULL) PicoCDLoadProgressCB(100);
	211
	212	return 0;
	213	}
	214
	215
	216	PICO_INTERNAL void Unload_ISO(void)
	217	{
	218	int i;
	219
	220	if (Pico_mcd == NULL) return;
	221
	222	if (Pico_mcd->TOC.Tracks[0].F) pm_close(Pico_mcd->TOC.Tracks[0].F);
	223
	224	for(i = 1; i < 100; i++)
	225	{
	226	if (Pico_mcd->TOC.Tracks[i].F != NULL)
	227	{
	228	#if DONT_OPEN_MANY_FILES
	229	if (Pico_mcd->TOC.Tracks[i].type == TYPE_MP3)
	230	free(Pico_mcd->TOC.Tracks[i].F);
	231	else
	232	#endif
	233	fclose(Pico_mcd->TOC.Tracks[i].F);
	234	}
	235	}
	236	memset(Pico_mcd->TOC.Tracks, 0, sizeof(Pico_mcd->TOC.Tracks));
	237	}
	238
	239
	240	PICO_INTERNAL int FILE_Read_One_LBA_CDC(void)
	241	{
	242	// static char cp_buf[2560];
	243
	244	if (Pico_mcd->s68k_regs[0x36] & 1) // DATA
	245	{
	246	if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1;
	247
	248	// moved below..
	249	//fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
	250	//fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F);
	251
	252	cdprintf("Read file CDC 1 data sector :\n");
	253	}
	254	else // AUDIO
	255	{
	256	// int rate, channel;
	257
	258	// if (Pico_mcd->TOC.Tracks[Pico_mcd->scd.Cur_Track - 1].ftype == TYPE_MP3)
	259	{
	260	// TODO
	261	// MP3_Update(cp_buf, &rate, &channel, 0);
	262	// Write_CD_Audio((short *) cp_buf, rate, channel, 588);
	263	}
	264
	265	cdprintf("Read file CDC 1 audio sector :\n");
	266	}
	267
	268	// Update CDC stuff
	269
	270	CDC_Update_Header();
	271
	272	if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track
	273	{
	274	if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
	275	{
	276	if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
	277	{
	278	int where_read = 0;
	279
	280	// CAUTION : lookahead bit not implemented
	281
	282	if (Pico_mcd->scd.Cur_LBA < 0)
	283	where_read = 0;
	284	else if (Pico_mcd->scd.Cur_LBA >= Pico_mcd->TOC.Tracks[0].Length)
	285	where_read = Pico_mcd->TOC.Tracks[0].Length - 1;
	286	else where_read = Pico_mcd->scd.Cur_LBA;
	287
	288	Pico_mcd->scd.Cur_LBA++;
	289
	290	Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
	291	Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
	292
	293	(unsigned int )(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N) = Pico_mcd->cdc.HEAD.N;
	294	//memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
	295
	296	//pm_seek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
	297	//pm_read(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 2048, Pico_mcd->TOC.Tracks[0].F);
	298	PicoCDBufferRead(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, where_read);
	299
	300	cdprintf("Read -> WA = %d Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
	301	cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0,
	302	Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3);
	303	cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n",
	304	Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF],
	305	Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF],
	306	Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF],
	307	Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF],
	308	Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF],
	309	Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]);
	310	}
	311
	312	}
	313	}
	314	else // music track
	315	{
	316	Pico_mcd->scd.Cur_LBA++;
	317
	318	Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
	319	Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
	320
	321	if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
	322	{
	323	if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
	324	{
	325	// CAUTION : lookahead bit not implemented
	326
	327	//memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352);
	328	}
	329	}
	330	}
	331
	332	if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
	333	{
	334	Pico_mcd->cdc.STAT.B.B0 = 0x80;
	335
	336	if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ?
	337	{
	338	Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08;
	339	}
	340	else
	341	{
	342	Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C;
	343	}
	344
	345	if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20; // ECC done
	346	else Pico_mcd->cdc.STAT.B.B3 = 0x00; // ECC not done
	347
	348	if (Pico_mcd->cdc.IFCTRL & 0x20)
	349	{
	350	if (Pico_mcd->s68k_regs[0x33] & (1<<5))
	351	{
	352	elprintf(EL_INTS, "cdc dec irq 5");
	353	SekInterruptS68k(5);
	354	}
	355
	356	Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen
	357	Pico_mcd->cdc.Decode_Reg_Read = 0; // Reset read after DEC int
	358	}
	359	}
	360
	361
	362	return 0;
	363	}
	364
	365
	366	PICO_INTERNAL int FILE_Play_CD_LBA(void)
	367	{
	368	int index = Pico_mcd->scd.Cur_Track - 1;
	369	Pico_mcd->m.audio_track = index;
	370
	371	cdprintf("Play track #%i", Pico_mcd->scd.Cur_Track);
	372
	373	if (Pico_mcd->TOC.Tracks[index].F == NULL)
	374	{
	375	return 1;
	376	}
	377
	378	if (Pico_mcd->TOC.Tracks[index].ftype == TYPE_MP3)
	379	{
	380	int pos1024 = 0;
	381	int Track_LBA_Pos = Pico_mcd->scd.Cur_LBA - Track_to_LBA(Pico_mcd->scd.Cur_Track);
	382	if (Track_LBA_Pos < 0) Track_LBA_Pos = 0;
	383	if (Track_LBA_Pos)
	384	pos1024 = Track_LBA_Pos * 1024 / Pico_mcd->TOC.Tracks[index].Length;
	385
	386	mp3_start_play(Pico_mcd->TOC.Tracks[index].F, pos1024);
	387	}
	388	else
	389	{
	390	return 3;
	391	}
	392
	393	return 0;
	394	}
	395