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/*
* PSX-Tools Bundle Pack
* Copyright (C) 1998 Heiko Eissfeldt
* portions used& Chris Smith
* First modified by Yazoo, then by
* Nicolas "Pixel" Noble
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __YAZEDC_H__
#include "Exceptions.h"
#define RS_L12_BITS 8
/* audio sector definitions for CIRC */
#define FRAMES_PER_SECTOR 98
/* user data bytes per frame */
#define L1_RAW 24
/* parity bytes with 8 bit */
#define L1_Q 4
#define L1_P 4
/* data sector definitions for RSPC */
/* user data bytes per frame */
#define L2_RAW (1024*2)
/* parity bytes for 16 bit units */
#define L2_Q (26*2*2)
#define L2_P (43*2*2)
/* known sector types */
#define MODE_0 0
#define MODE_1 1
#define MODE_2 2
#define MODE_2_FORM_1 3
#define MODE_2_FORM_2 4
/* r-w sub channel definitions */
#define RS_SUB_RW_BITS 6
#define PACKETS_PER_SUBCHANNELFRAME 4
#define LSUB_RAW 18
#define LSUB_QRAW 2
/* 6 bit */
#define LSUB_Q 2
#define LSUB_P 4
class yazedc : public Base {
public:
yazedc();
/* set one of the MODE_* constants for subsequent data sector formatting */
int set_sector_type(int st);
/* get the current sector type setting for data sector formatting */
int get_sector_type(void);
/* data sector layer 2 Reed-Solomon Product Code encoder */
/* encode the given data portion depending on sector type (see
get/set_sector_type() functions). Use the given address for the header.
The returned data is __unscrambled__ and not in F2-frame format (for that
see function scramble_L2()).
Supported sector types:
MODE_0: a 12-byte sync field, a header and 2336 zeros are returned.
MODE_1: the user data portion (2048 bytes) has to be given
at offset 16 in the inout array.
Sync-, header-, edc-, spare-, p- and q- fields will be added.
MODE_2: the user data portion (2336 bytes) has to be given
at offset 16 in the inout array.
Sync- and header- fields will be added.
MODE_2_FORM_1: the user data portion (8 bytes subheader followed
by 2048 bytes data) has to be given at offset 16
in the inout array.
Sync-, header-, edc-, p- and q- fields will be added.
MODE_2_FORM_2: the user data portion (8 bytes subheader followed
by 2324 bytes data) has to be given at offset 16
in the inout array.
Sync-, header- and edc- fields will be added.
*/
int do_encode_L2(unsigned char *inout, int sectortype, unsigned address);
/* generates f2 frames from otherwise fully formatted sectors (generated by
do_encode_L2()). */
int scramble_L2(unsigned char *inout);
unsigned char minute, second, frame;
private:
int sectortype;
int build_address(unsigned char inout[], int sectortype, unsigned address);
};
#endif
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