claunia/libcdio-osx
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Add mode1 reading in a hacky way.

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rocky
2004-03-20 03:34:12 +00:00
parent b0bc1182d0
commit 20d26ec45a
1 changed files with 55 additions and 8 deletions
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63
lib/_cdio_bsdi.c
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@@ -1,8 +1,8 @@
/*
$Id: _cdio_bsdi.c,v 1.19 2003/10/03 17:29:59 rocky Exp $
$Id: _cdio_bsdi.c,v 1.20 2004/03/20 03:34:12 rocky Exp $
Copyright (C) 2001 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2002,2003 Rocky Bernstein <rocky@panix.com>
Copyright (C) 2002, 2003, 2004 Rocky Bernstein <rocky@panix.com>
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
@@ -27,7 +27,7 @@
# include "config.h"
#endif
static const char _rcsid[] = "$Id: _cdio_bsdi.c,v 1.19 2003/10/03 17:29:59 rocky Exp $";
static const char _rcsid[] = "$Id: _cdio_bsdi.c,v 1.20 2004/03/20 03:34:12 rocky Exp $";
#include <cdio/sector.h>
#include <cdio/util.h>
@@ -195,13 +195,58 @@ _read_audio_sectors (void *env, void *data, lsn_t lsn,
return 0;
}
/*!
Reads a single mode1 sector from cd device into data starting
from lsn. Returns 0 if no error.
*/
static int
_cdio_read_mode1_sector (void *env, void *data, lsn_t lsn,
bool b_form2)
{
char buf[M2RAW_SECTOR_SIZE] = { 0, };
#if FIXED
do something here.
#else
if (0 > cdio_generic_lseek(env, CDIO_CD_FRAMESIZE*lsn, SEEK_SET))
return -1;
if (0 > cdio_generic_read(env, buf, CDIO_CD_FRAMESIZE))
return -1;
memcpy (data, buf, b_form2 ? M2RAW_SECTOR_SIZE: CDIO_CD_FRAMESIZE);
#endif
return 0;
}
/*!
Reads nblocks of mode2 sectors from cd device into data starting
from lsn.
Returns 0 if no error.
*/
static int
_cdio_read_mode1_sectors (void *env, void *data, lsn_t lsn,
bool b_form2, unsigned int nblocks)
{
_img_private_t *_obj = env;
unsigned int i;
int retval;
unsigned int blocksize = b_form2 ? M2RAW_SECTOR_SIZE : CDIO_CD_FRAMESIZE;
for (i = 0; i < nblocks; i++) {
if ( (retval = _cdio_read_mode1_sector (_obj,
((char *)data) + (blocksize * i),
lsn + i, b_form2)) )
return retval;
}
return 0;
}
/*!
Reads a single mode2 sector from cd device into data starting
from lsn. Returns 0 if no error.
*/
static int
_cdio_read_mode2_sector (void *env, void *data, lsn_t lsn,
bool mode2_form2)
bool b_form2)
{
char buf[M2RAW_SECTOR_SIZE] = { 0, };
struct cdrom_msf *msf = (struct cdrom_msf *) &buf;
@@ -246,7 +291,7 @@ _cdio_read_mode2_sector (void *env, void *data, lsn_t lsn,
break;
}
if (mode2_form2)
if (b_form2)
memcpy (data, buf, M2RAW_SECTOR_SIZE);
else
memcpy (((char *)data), buf + CDIO_CD_SUBHEADER_SIZE, CDIO_CD_FRAMESIZE);
@@ -261,14 +306,14 @@ _cdio_read_mode2_sector (void *env, void *data, lsn_t lsn,
*/
static int
_cdio_read_mode2_sectors (void *env, void *data, lsn_t lsn,
bool mode2_form2, unsigned int nblocks)
bool b_form2, unsigned int nblocks)
{
_img_private_t *_obj = env;
int i;
int retval;
for (i = 0; i < nblocks; i++) {
if (mode2_form2) {
if (b_form2) {
if ( (retval = _cdio_read_mode2_sector (_obj,
((char *)data) + (M2RAW_SECTOR_SIZE * i),
lsn + i, true)) )
@@ -667,8 +712,10 @@ cdio_open_bsdi (const char *source_name)
.get_track_msf = _cdio_get_track_msf,
.lseek = cdio_generic_lseek,
.read = cdio_generic_read,
.read_mode2_sector = _cdio_read_mode2_sector,
.read_audio_sectors = _read_audio_sectors,
.read_mode1_sector = _cdio_read_mode1_sector,
.read_mode1_sectors = _cdio_read_mode1_sectors,
.read_mode2_sector = _cdio_read_mode2_sector,
.read_mode2_sectors = _cdio_read_mode2_sectors,
.set_arg = _cdio_set_arg,
.stat_size = _cdio_stat_size