nkeynes@1097: /**
nkeynes@1097:  * $Id$
nkeynes@1097:  *
nkeynes@1097:  * Copyright (c) 2009 Nathan Keynes.
nkeynes@1097:  *
nkeynes@1097:  * This program is free software; you can redistribute it and/or modify
nkeynes@1097:  * it under the terms of the GNU General Public License as published by
nkeynes@1097:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@1097:  * (at your option) any later version.
nkeynes@1097:  *
nkeynes@1097:  * This program is distributed in the hope that it will be useful,
nkeynes@1097:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@1097:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@1097:  * GNU General Public License for more details.
nkeynes@1097:  */
nkeynes@1097: 
nkeynes@1097: #include <assert.h>
nkeynes@1097: #include <errno.h>
nkeynes@1097: #include <fcntl.h>
nkeynes@1097: #include <stdio.h>
nkeynes@1097: #include <string.h>
nkeynes@1097: #include <glib/gmem.h>
nkeynes@1097: #include <glib/gstrfuncs.h>
nkeynes@1097: #include "lxdream.h"
nkeynes@1097: #include "drivers/cdrom/cdrom.h"
nkeynes@1097: #include "drivers/cdrom/cdimpl.h"
nkeynes@1108: #include "drivers/cdrom/isofs.h"
nkeynes@1097: 
nkeynes@1097: extern struct cdrom_disc_factory linux_cdrom_drive_factory;
nkeynes@1097: extern struct cdrom_disc_factory nrg_disc_factory;
nkeynes@1097: extern struct cdrom_disc_factory cdi_disc_factory;
nkeynes@1097: extern struct cdrom_disc_factory gdi_disc_factory;
nkeynes@1097: 
nkeynes@1097: cdrom_disc_factory_t cdrom_disc_factories[] = {
nkeynes@1097: #ifdef HAVE_LINUX_CDROM
nkeynes@1097:         &linux_cdrom_drive_factory,
nkeynes@1097: #endif
nkeynes@1097:         &nrg_disc_factory,
nkeynes@1097:         &cdi_disc_factory,
nkeynes@1097:         &gdi_disc_factory,
nkeynes@1097:         NULL };
nkeynes@1097: 
nkeynes@1097: /********************* Implementation Support functions ************************/
nkeynes@1097: 
nkeynes@1097: cdrom_error_t default_image_read_blocks( sector_source_t source, cdrom_lba_t lba, cdrom_count_t count,
nkeynes@1097:                                          unsigned char *buf )
nkeynes@1097: {
nkeynes@1097:     assert( 0 && "read_blocks called on a cdrom disc" );
nkeynes@1097:     return CDROM_ERROR_BADREAD;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: cdrom_error_t default_image_read_sectors( sector_source_t source, cdrom_lba_t lba, cdrom_count_t count,
nkeynes@1097:                                           cdrom_read_mode_t mode, unsigned char *buf, size_t *length )
nkeynes@1097: {
nkeynes@1097:     assert( IS_SECTOR_SOURCE_TYPE(source,DISC_SECTOR_SOURCE) );
nkeynes@1097:     cdrom_disc_t disc = (cdrom_disc_t)source;
nkeynes@1097:     size_t len = 0, tmplen;
nkeynes@1097:     cdrom_count_t current = 0;
nkeynes@1097: 
nkeynes@1097:     while( current < count ) {
nkeynes@1097:         cdrom_track_t track = cdrom_disc_get_track_by_lba( disc, lba + current );
nkeynes@1097:         if( track == NULL )
nkeynes@1097:             return CDROM_ERROR_BADREAD;
nkeynes@1097:         uint32_t track_size = cdrom_disc_get_track_size( disc, track );
nkeynes@1097:         cdrom_lba_t track_offset = lba + current - track->lba;
nkeynes@1097:         cdrom_count_t sub_count = count - current;
nkeynes@1097:         if( track_size - track_offset < sub_count )
nkeynes@1097:             /* Read breaks across track boundaries. This will probably fail (due
nkeynes@1097:              * to inter-track gaps), but try it just in case
nkeynes@1097:              */
nkeynes@1097:             sub_count = track_size - track_offset;
nkeynes@1097:         cdrom_error_t err = track->source->read_sectors( track->source, track_offset, sub_count, mode, &buf[len], &tmplen );
nkeynes@1097:         if( err != CDROM_ERROR_OK )
nkeynes@1097:             return err;
nkeynes@1097:         len += tmplen;
nkeynes@1097:         current += sub_count;
nkeynes@1097:     }
nkeynes@1099:     if( length != NULL )
nkeynes@1099:         *length = len;
nkeynes@1097:     return CDROM_ERROR_OK;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: void default_cdrom_disc_destroy( sector_source_t source )
nkeynes@1097: {
nkeynes@1097:     assert( IS_SECTOR_SOURCE_TYPE(source,DISC_SECTOR_SOURCE) );
nkeynes@1097:     cdrom_disc_t disc = (cdrom_disc_t)source;
nkeynes@1097:     int i;
nkeynes@1097: 
nkeynes@1097:     for( i=0; i<disc->track_count; i++ ) {
nkeynes@1097:         sector_source_unref( disc->track[i].source );
nkeynes@1097:     }
nkeynes@1097:     sector_source_unref( disc->base_source );
nkeynes@1097:     g_free( (char *)disc->name );
nkeynes@1097: 
nkeynes@1097:     default_sector_source_destroy( source );
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: cdrom_disc_t cdrom_disc_init( cdrom_disc_t disc, const char *filename )
nkeynes@1097: {
nkeynes@1097:     sector_source_init( &disc->source, DISC_SECTOR_SOURCE, SECTOR_UNKNOWN, 0, default_image_read_blocks,
nkeynes@1097:             default_cdrom_disc_destroy );
nkeynes@1097:     disc->source.read_sectors = default_image_read_sectors;
nkeynes@1097:     disc->disc_type = CDROM_DISC_NONE;
nkeynes@1097:     disc->track_count = disc->session_count = 0;
nkeynes@1097:     for( int i=0; i<99; i++ ) {
nkeynes@1097:         disc->track[i].trackno = i+1;
nkeynes@1097:     }
nkeynes@1097:     if( filename != NULL )
nkeynes@1097:         disc->name = g_strdup(filename);
nkeynes@1097:     return disc;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: cdrom_disc_t cdrom_disc_new( const char *name, ERROR *err )
nkeynes@1097: {
nkeynes@1097:     cdrom_disc_t disc = g_malloc0( sizeof(struct cdrom_disc) );
nkeynes@1097:     if( disc != NULL ) {
nkeynes@1097:         cdrom_disc_init( disc, name );
nkeynes@1097:     } else {
nkeynes@1097:         SET_ERROR(err, ENOMEM, "Unable to allocate memory for cdrom disc");
nkeynes@1097:     }
nkeynes@1097:     return disc;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: /**
nkeynes@1097:  * Construct a new image-based disc using the given filename as the base source.
nkeynes@1097:  * TOC is initialized to the empty values.
nkeynes@1097:  */
nkeynes@1097: static cdrom_disc_t cdrom_disc_image_new( const char *filename, ERROR *err )
nkeynes@1097: {
nkeynes@1097:     cdrom_disc_t disc = cdrom_disc_new( filename, err );
nkeynes@1097:     if( disc != NULL && filename != NULL ) {
nkeynes@1097:         disc->base_source = file_sector_source_new_filename( filename, SECTOR_UNKNOWN, 0, FILE_SECTOR_FULL_FILE );
nkeynes@1097:         if( disc->base_source == NULL ) {
nkeynes@1097:             SET_ERROR( err, errno, "Unable to open cdrom file '%s': %s", filename, strerror(errno) );
nkeynes@1097:             cdrom_disc_unref(disc);
nkeynes@1097:             disc = NULL;
nkeynes@1097:         } else {
nkeynes@1097:             sector_source_ref(disc->base_source);
nkeynes@1097:         }
nkeynes@1097: 
nkeynes@1097:     }
nkeynes@1097:     return disc;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: cdrom_lba_t cdrom_disc_compute_leadout( cdrom_disc_t disc )
nkeynes@1097: {
nkeynes@1097:     if( disc->track_count == 0 ) {
nkeynes@1097:         disc->leadout = 0;
nkeynes@1097:     } else {
nkeynes@1097:         cdrom_track_t last_track = &disc->track[disc->track_count-1];
nkeynes@1097:         if( last_track->source != NULL ) {
nkeynes@1097:             cdrom_lba_t leadout = last_track->lba + last_track->source->size;
nkeynes@1097:             if( leadout > disc->leadout )
nkeynes@1097:                 disc->leadout = leadout;
nkeynes@1097:         }
nkeynes@1097:     }
nkeynes@1097:     return disc->leadout;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: 
nkeynes@1097: void cdrom_disc_set_default_disc_type( cdrom_disc_t disc )
nkeynes@1097: {
nkeynes@1097:     int type = CDROM_DISC_NONE, i;
nkeynes@1097:     for( i=0; i<disc->track_count; i++ ) {
nkeynes@1097:         if( (disc->track[i].flags & TRACK_FLAG_DATA == 0) ) {
nkeynes@1097:             if( type == CDROM_DISC_NONE )
nkeynes@1097:                 type = CDROM_DISC_AUDIO;
nkeynes@1097:         } else if( disc->track[i].source != NULL &&
nkeynes@1097:                    (disc->track[i].source->mode == SECTOR_MODE1 ||
nkeynes@1097:                     disc->track[i].source->mode == SECTOR_RAW_NONXA) ) {
nkeynes@1097:             if( type != CDROM_DISC_XA )
nkeynes@1097:                 type = CDROM_DISC_NONXA;
nkeynes@1097:         } else {
nkeynes@1097:             type = CDROM_DISC_XA;
nkeynes@1097:             break;
nkeynes@1097:         }
nkeynes@1097:     }
nkeynes@1097:     disc->disc_type = type;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: void cdrom_disc_clear_toc( cdrom_disc_t disc )
nkeynes@1097: {
nkeynes@1097:     disc->disc_type = CDROM_DISC_NONE;
nkeynes@1097:     disc->leadout = 0;
nkeynes@1097:     disc->track_count = 0;
nkeynes@1097:     disc->session_count = 0;
nkeynes@1097:     for( unsigned i=0; i< CDROM_MAX_TRACKS; i++ ) {
nkeynes@1097:         if( disc->track[i].source != NULL ) {
nkeynes@1097:             sector_source_unref( disc->track[i].source );
nkeynes@1097:             disc->track[i].source = NULL;
nkeynes@1097:         }
nkeynes@1097:     }
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: gboolean cdrom_disc_read_toc( cdrom_disc_t disc, ERROR *err )
nkeynes@1097: {
nkeynes@1108:     if( disc->read_toc != NULL ) {
nkeynes@1108:         /* First set the defaults for an empty disc */
nkeynes@1108:         cdrom_disc_clear_toc(disc);
nkeynes@1097: 
nkeynes@1108:         if( disc->read_toc(disc, err ) ) {
nkeynes@1108:             /* Success - update disc type and leadout if the TOC read didn't set them */
nkeynes@1108:             if( disc->disc_type == CDROM_DISC_NONE )
nkeynes@1108:                 cdrom_disc_set_default_disc_type(disc);
nkeynes@1108:             cdrom_disc_compute_leadout(disc);
nkeynes@1108:             return TRUE;
nkeynes@1108:         } else {
nkeynes@1108:             /* Reset to an empty disc in case the reader left things in an
nkeynes@1108:              * inconsistent state */
nkeynes@1108:             cdrom_disc_clear_toc(disc);
nkeynes@1108:             return FALSE;
nkeynes@1108:         }
nkeynes@1108:     } else {
nkeynes@1097:         return TRUE;
nkeynes@1097:     }
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: FILE *cdrom_disc_get_base_file( cdrom_disc_t disc )
nkeynes@1097: {
nkeynes@1097:     return file_sector_source_get_file(disc->base_source);
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: /*************************** Public functions ***************************/
nkeynes@1097: 
nkeynes@1097: cdrom_disc_t cdrom_disc_open( const char *inFilename, ERROR *err )
nkeynes@1097: {
nkeynes@1097:     const gchar *filename = inFilename;
nkeynes@1097:     const gchar *ext = strrchr(filename, '.');
nkeynes@1097:     int i;
nkeynes@1097:     cdrom_disc_factory_t extclz = NULL;
nkeynes@1097: 
nkeynes@1097:     /* Ask the drive list if it recognizes the name first */
nkeynes@1097:     cdrom_drive_t drive = cdrom_drive_find(inFilename);
nkeynes@1097:     if( drive != NULL ) {
nkeynes@1097:         return cdrom_drive_open(drive, err);
nkeynes@1097:     }
nkeynes@1097: 
nkeynes@1097:     cdrom_disc_t disc = cdrom_disc_image_new( filename, err );
nkeynes@1097:     if( disc == NULL )
nkeynes@1097:         return NULL;
nkeynes@1097: 
nkeynes@1097:     /* check file extensions first */
nkeynes@1097:     FILE *f = file_sector_source_get_file(disc->base_source);
nkeynes@1097:     if( ext != NULL ) {
nkeynes@1097:         ext++; /* Skip the '.' */
nkeynes@1097:         for( i=0; cdrom_disc_factories[i] != NULL; i++ ) {
nkeynes@1097:             if( cdrom_disc_factories[i]->extension != NULL &&
nkeynes@1097:                     strcasecmp( cdrom_disc_factories[i]->extension, ext ) == 0 ) {
nkeynes@1097:                 extclz = cdrom_disc_factories[i];
nkeynes@1097:                 if( extclz->is_valid_file(f) ) {
nkeynes@1097:                     disc->read_toc = extclz->read_toc;
nkeynes@1097:                 }
nkeynes@1097:                 break;
nkeynes@1097:             }
nkeynes@1097:         }
nkeynes@1097:     }
nkeynes@1097: 
nkeynes@1097:     if( disc->read_toc == NULL ) {
nkeynes@1097:         /* Okay, fall back to magic */
nkeynes@1097:         for( i=0; cdrom_disc_factories[i] != NULL; i++ ) {
nkeynes@1097:             if( cdrom_disc_factories[i] != extclz &&
nkeynes@1097:                 cdrom_disc_factories[i]->is_valid_file(f) ) {
nkeynes@1097:                 disc->read_toc = cdrom_disc_factories[i]->read_toc;
nkeynes@1097:                 break;
nkeynes@1097:             }
nkeynes@1097:         }
nkeynes@1097:     }
nkeynes@1097: 
nkeynes@1097:     if( disc->read_toc != NULL && cdrom_disc_read_toc( disc, err ) ) {
nkeynes@1097:         /* All good */
nkeynes@1097:         return disc;
nkeynes@1097:     } else {
nkeynes@1097:         /* No handler found for file */
nkeynes@1097:         cdrom_disc_unref( disc );
nkeynes@1097:         SET_ERROR( err, EINVAL, "File '%s' could not be recognized as any known image file or device type" );
nkeynes@1097:         return NULL;
nkeynes@1097:     }
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: /**
nkeynes@1108:  * Construct a disc around a source track.
nkeynes@1108:  * @param type Disc type, which must be compatible with the track mode
nkeynes@1108:  * @param track The source of data for the main track
nkeynes@1108:  * @param lba The position on disc of the main track. If non-zero,
nkeynes@1108:  * a filler track is added before it, in 2 separate sessions.
nkeynes@1108:  */
nkeynes@1108: cdrom_disc_t cdrom_disc_new_from_track( cdrom_disc_type_t type, sector_source_t track, cdrom_lba_t lba )
nkeynes@1108: {
nkeynes@1108:     cdrom_disc_t disc = cdrom_disc_new( NULL, NULL );
nkeynes@1108:     if( disc != NULL ) {
nkeynes@1108:         disc->disc_type = type;
nkeynes@1108:         int trackno = 0;
nkeynes@1108:         if( lba != 0 ) {
nkeynes@1108:             cdrom_count_t size = lba - 150;
nkeynes@1108:             if( lba < 150 )
nkeynes@1108:                 size = lba;
nkeynes@1108:             disc->track[0].trackno = 1;
nkeynes@1108:             disc->track[0].sessionno = 1;
nkeynes@1108:             disc->track[0].lba = 0;
nkeynes@1108:             disc->track[0].flags = 0;
nkeynes@1108:             disc->track[0].source = null_sector_source_new( SECTOR_CDDA, size );
nkeynes@1108:             sector_source_ref( disc->track[0].source );
nkeynes@1108:             trackno++;
nkeynes@1108:         }
nkeynes@1108:         disc->track[trackno].trackno = trackno+1;
nkeynes@1108:         disc->track[trackno].sessionno = trackno+1;
nkeynes@1108:         disc->track[trackno].lba = lba;
nkeynes@1108:         disc->track[trackno].flags = (track->mode == SECTOR_CDDA ? 0 : TRACK_FLAG_DATA);
nkeynes@1108:         disc->track[trackno].source = track;
nkeynes@1108:         sector_source_ref(track);
nkeynes@1108: 
nkeynes@1108:         disc->track_count = trackno+1;
nkeynes@1108:         disc->session_count = trackno+1;
nkeynes@1108:         cdrom_disc_compute_leadout(disc);
nkeynes@1108:     }
nkeynes@1108:     return disc;
nkeynes@1108: }
nkeynes@1108: 
nkeynes@1108: /**
nkeynes@1108:  * Construct a disc around an IsoImage track (convenience function)
nkeynes@1108:  */
nkeynes@1108: cdrom_disc_t cdrom_disc_new_from_iso_image( cdrom_disc_type_t type, IsoImage *iso, cdrom_lba_t lba,
nkeynes@1108:                                             const char *bootstrap, ERROR *err )
nkeynes@1108: {
nkeynes@1108:     sector_mode_t mode = (type == CDROM_DISC_NONXA ? SECTOR_MODE1 : SECTOR_MODE2_FORM1 );
nkeynes@1108:     sector_source_t source = iso_sector_source_new( iso, mode, lba, bootstrap, err );
nkeynes@1108:     if( source != NULL ) {
nkeynes@1108:         cdrom_disc_t disc = cdrom_disc_new_from_track(type, source, lba);
nkeynes@1108:         if( disc == NULL ) {
nkeynes@1108:             sector_source_unref( source );
nkeynes@1108:         } else {
nkeynes@1108:             return disc;
nkeynes@1108:         }
nkeynes@1108:     }
nkeynes@1108:     return NULL;
nkeynes@1108: }
nkeynes@1108: 
nkeynes@1108: /**
nkeynes@1097:  * Get the track information for the given track. If there is no such track,
nkeynes@1097:  * return NULL;
nkeynes@1097:  */
nkeynes@1097: cdrom_track_t cdrom_disc_get_track( cdrom_disc_t disc, cdrom_trackno_t track )
nkeynes@1097: {
nkeynes@1097:     if( track < 1 || track >= disc->track_count )
nkeynes@1097:         return NULL;
nkeynes@1097:     return &disc->track[track-1];
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: /**
nkeynes@1097:  * Get the track information for the first track of the given session. If there
nkeynes@1097:  * is no such session, return NULL;
nkeynes@1097:  */
nkeynes@1097: cdrom_track_t cdrom_disc_get_session( cdrom_disc_t disc, cdrom_sessionno_t session )
nkeynes@1097: {
nkeynes@1097:     for( unsigned i=0; i< disc->track_count; i++ ) {
nkeynes@1097:         if( disc->track[i].sessionno == session )
nkeynes@1097:             return &disc->track[i];
nkeynes@1097:     }
nkeynes@1097:     return NULL;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: cdrom_count_t cdrom_disc_get_track_size( cdrom_disc_t disc, cdrom_track_t track )
nkeynes@1097: {
nkeynes@1097:     if( track->trackno == disc->track_count )
nkeynes@1097:         return disc->leadout - track->lba;
nkeynes@1097:     else
nkeynes@1097:         return disc->track[track->trackno].lba - track->lba;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: cdrom_track_t cdrom_disc_get_last_track( cdrom_disc_t disc )
nkeynes@1097: {
nkeynes@1097:     if( disc->track_count == 0 )
nkeynes@1097:         return NULL;
nkeynes@1097:     return &disc->track[disc->track_count-1];
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1099: cdrom_track_t cdrom_disc_get_last_data_track( cdrom_disc_t disc )
nkeynes@1099: {
nkeynes@1099:     for( unsigned i=disc->track_count; i>0; i-- ) {
nkeynes@1099:         if( disc->track[i-1].flags & TRACK_FLAG_DATA ) {
nkeynes@1099:             return &disc->track[i-1];
nkeynes@1099:         }
nkeynes@1099:     }
nkeynes@1099:     return NULL;
nkeynes@1099: }
nkeynes@1097: cdrom_track_t cdrom_disc_prev_track( cdrom_disc_t disc, cdrom_track_t track )
nkeynes@1097: {
nkeynes@1097:     if( track->trackno <= 1 )
nkeynes@1097:         return NULL;
nkeynes@1097:     return cdrom_disc_get_track( disc, track->trackno-1 );
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: cdrom_track_t cdrom_disc_next_track( cdrom_disc_t disc, cdrom_track_t track )
nkeynes@1097: {
nkeynes@1097:     if( track->trackno >= disc->track_count )
nkeynes@1097:         return NULL;
nkeynes@1097:     return cdrom_disc_get_track( disc, track->trackno+1 );
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: /**
nkeynes@1097:  * Find the track containing the sector specified by LBA.
nkeynes@1097:  * Note: this function does not check for media change.
nkeynes@1097:  * @return The track, or NULL if no track contains the sector.
nkeynes@1097:  */
nkeynes@1097: cdrom_track_t cdrom_disc_get_track_by_lba( cdrom_disc_t disc, cdrom_lba_t lba )
nkeynes@1097: {
nkeynes@1097:     if( disc->track_count == 0 || disc->track[0].lba > lba || lba >= disc->leadout )
nkeynes@1097:         return NULL; /* LBA outside disc bounds */
nkeynes@1097: 
nkeynes@1097:     for( unsigned i=1; i< disc->track_count; i++ ) {
nkeynes@1097:         if( lba < disc->track[i].lba )
nkeynes@1097:             return &disc->track[i-1];
nkeynes@1097:     }
nkeynes@1097:     return &disc->track[disc->track_count-1];
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: cdrom_error_t cdrom_disc_read_sectors( cdrom_disc_t disc, cdrom_lba_t lba, cdrom_count_t count,
nkeynes@1097:                                        cdrom_read_mode_t mode, unsigned char *buf, size_t *length )
nkeynes@1097: {
nkeynes@1097:     return disc->source.read_sectors( &disc->source, lba, count, mode, buf, length );
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: /**
nkeynes@1097:  * Check if the disc contains valid media.
nkeynes@1097:  * @return CDROM_ERROR_OK if disc is present, otherwise CDROM_ERROR_NODISC
nkeynes@1097:  */
nkeynes@1097: cdrom_error_t cdrom_disc_check_media( cdrom_disc_t disc )
nkeynes@1097: {
nkeynes@1097:     if( disc == NULL )
nkeynes@1097:         return CDROM_ERROR_NODISC;
nkeynes@1097:     if( disc->check_media != NULL )
nkeynes@1097:         disc->check_media(disc);
nkeynes@1097:     return disc->disc_type == CDROM_DISC_NONE ? CDROM_ERROR_NODISC : CDROM_ERROR_OK;
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: void cdrom_disc_print_toc( FILE *f, cdrom_disc_t disc )
nkeynes@1097: {
nkeynes@1097:     int i;
nkeynes@1097:     int session = 0;
nkeynes@1097: 
nkeynes@1097:     if( disc == NULL || disc->track_count == 0 ) {
nkeynes@1097:         fprintf( f, "No disc\n" );
nkeynes@1097:         return;
nkeynes@1097:     }
nkeynes@1097:     for( i=0; i<disc->track_count; i++ ) {
nkeynes@1097:         cdrom_track_t track = &disc->track[i];
nkeynes@1097:         if( track->sessionno != session ) {
nkeynes@1097:             session = disc->track[i].sessionno;
nkeynes@1097:             fprintf( f, "Session %d:\n", session );
nkeynes@1097:         }
nkeynes@1097:         fprintf( f, "  %02d. %6d %02x\n", track->trackno, track->lba, track->flags );
nkeynes@1097:     }
nkeynes@1097: }
nkeynes@1097: 
nkeynes@1097: void cdrom_disc_dump_toc( cdrom_disc_t disc )
nkeynes@1097: {
nkeynes@1097:     cdrom_disc_print_toc( stderr, disc );
nkeynes@1097: }