BIG REORGANIZATION.
Reorganize directory structure for inclusion of cd-paranoia. Works for GNU/Linux. Other OS's may be broken. Regression test output needs to be adjusted too. Move: lib/driver (split off of lib) lib/iso9660 (split off of lib) Add from paranoia: lib/cdda_interface lib/paranoia src/paranoia Also made some small changes to capability indentification to show more reading capabilties and show that. cd-info now shows the total disc size.
This commit is contained in:
rocky
199
lib/cdda_interface/toc.c
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199
lib/cdda_interface/toc.c
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/*
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$Id: toc.c,v 1.1 2004/12/18 17:29:32 rocky Exp $
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Copyright (C) 1998 Monty xiphmont@mit.edu
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derived from code (C) 1994-1996 Heiko Eissfeldt
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/******************************************************************
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* Table of contents convenience functions
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******************************************************************/
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#include "low_interface.h"
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#include "utils.h"
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long
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cdda_track_firstsector(cdrom_drive_t *d,int track)
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{
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if(!d->opened){
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cderror(d,"400: Device not open\n");
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return(-1);
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}
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if (track == 0) {
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if (d->disc_toc[0].dwStartSector == 0) {
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/* first track starts at lba 0 -> no pre-gap */
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cderror(d,"401: Invalid track number\n");
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return(-1);
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}
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else {
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return 0; /* pre-gap of first track always starts at lba 0 */
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}
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}
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if(track<0 || track>d->tracks){
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cderror(d,"401: Invalid track number\n");
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return(-1);
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}
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return(d->disc_toc[track-1].dwStartSector);
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}
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long
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cdda_disc_firstsector(cdrom_drive_t *d)
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{
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int i;
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if(!d->opened){
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cderror(d,"400: Device not open\n");
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return(-1);
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}
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/* look for an audio track */
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for(i=0;i<d->tracks;i++)
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if(cdda_track_audiop(d,i+1)==1) {
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if (i == 0) /* disc starts at lba 0 if first track is an audio track */
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return 0;
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else
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return(cdda_track_firstsector(d,i+1));
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}
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cderror(d,"403: No audio tracks on disc\n");
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return(-1);
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}
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long
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cdda_track_lastsector(cdrom_drive_t *d,int track)
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{
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if(!d->opened){
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cderror(d,"400: Device not open\n");
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return(-1);
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}
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if (track == 0) {
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if (d->disc_toc[0].dwStartSector == 0) {
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/* first track starts at lba 0 -> no pre-gap */
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cderror(d,"401: Invalid track number\n");
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return(-1);
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}
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else {
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return d->disc_toc[0].dwStartSector-1;
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}
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}
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if(track<1 || track>d->tracks){
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cderror(d,"401: Invalid track number\n");
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return(-1);
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}
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/* Safe, we've always the leadout at disc_toc[tracks] */
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return(d->disc_toc[track].dwStartSector-1);
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}
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long
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cdda_disc_lastsector(cdrom_drive_t *d)
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{
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int i;
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if(!d->opened){
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cderror(d,"400: Device not open\n");
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return(-1);
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}
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/* look for an audio track */
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for(i=d->tracks-1;i>=0;i--)
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if(cdda_track_audiop(d,i+1)==1)
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return(cdda_track_lastsector(d,i+1));
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cderror(d,"403: No audio tracks on disc\n");
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return(-1);
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}
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long
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cdda_tracks(cdrom_drive_t *d)
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{
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if(!d->opened){
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cderror(d,"400: Device not open\n");
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return(-1);
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}
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return(d->tracks);
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}
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int
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cdda_sector_gettrack(cdrom_drive_t *d,long sector)
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{
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if(!d->opened){
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cderror(d,"400: Device not open\n");
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return(-1);
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}else{
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int i;
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if (sector < d->disc_toc[0].dwStartSector)
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return 0; /* We're in the pre-gap of first track */
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for(i=0;i<d->tracks;i++){
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if(d->disc_toc[i].dwStartSector<=sector &&
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d->disc_toc[i+1].dwStartSector>sector)
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return (i+1);
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}
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cderror(d,"401: Invalid track number\n");
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return -1;
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}
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}
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static int
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cdda_track_bitmap(cdrom_drive_t *d,int track,int bit,int set,int clear)
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{
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if(!d->opened){
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cderror(d,"400: Device not open\n");
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return(-1);
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}
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if (track == 0)
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track = 1; /* map to first track number */
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if(track<1 || track>d->tracks){
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cderror(d,"401: Invalid track number\n");
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return(-1);
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}
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if ((d->disc_toc[track-1].bFlags & bit))
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return(set);
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else
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return(clear);
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}
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int
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cdda_track_channels(cdrom_drive_t *d,int track)
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{
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return(cdda_track_bitmap(d,track,8,4,2));
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}
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int
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cdda_track_audiop(cdrom_drive_t *d,int track)
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{
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return(cdda_track_bitmap(d,track,4,0,1));
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}
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int
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cdda_track_copyp(cdrom_drive_t *d,int track)
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{
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return(cdda_track_bitmap(d,track,2,1,0));
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}
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int
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cdda_track_preemp(cdrom_drive_t *d, int track)
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{
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return(cdda_track_bitmap(d,track,1,1,0));
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}
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