quakeforge-old/common/cd_linux.c

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/*
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Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 1999,2000 contributors of the QuakeForge project
Please see the file "AUTHORS" for a list of contributors
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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.
*/
// Quake is a trademark of Id Software, Inc., (c) 1996 Id Software, Inc. All
// rights reserved.
#include "quakedef.h"
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#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/types.h>
#include <fcntl.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#ifdef USE_LINUX_CD
# include <linux/cdrom.h>
#endif
#ifdef USE_BSD_CD
# include <sys/cdio.h>
#endif
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static qboolean cdValid = false;
static qboolean playing = false;
static qboolean wasPlaying = false;
static qboolean initialized = false;
static qboolean enabled = true;
static qboolean playLooping = false;
static float cdvolume;
static byte remap[100];
static byte playTrack;
static byte maxTrack;
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static int cdfile = -1;
static char cd_dev[64] = "/dev/cdrom";
#ifdef USE_BSD_CD
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# define CDROMEJECT CDIOCEJECT
# define CDROMCLOSETRAY CDIOCCLOSE
# define CDROMREADTOCHDR CDIOREADTOCHEADER
# define CDROMREADTOCENTRY CDIOREADTOCENTRY
# define CDROMPLAYTRKIND CDIOCPLAYTRACKS
# define CDROMRESUME CDIOCRESUME
# define CDROMSTOP CDIOCSTOP
# define CDROMPAUSE CDIOCPAUSE
# define CDROMSUBCHNL CDIOCREADSUBCHANNEL
#endif
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static void CDAudio_Eject(void)
{
if (cdfile == -1 || !enabled)
return; // no cd init'd
if ( ioctl(cdfile, CDROMEJECT) == -1 )
Con_DPrintf("CD eject ioctl failed\n");
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}
static void CDAudio_CloseDoor(void)
{
if (cdfile == -1 || !enabled)
return; // no cd init'd
if ( ioctl(cdfile, CDROMCLOSETRAY) == -1 )
Con_DPrintf("CD close ioctl failed\n");
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}
static int CDAudio_GetAudioDiskInfo(void)
{
#if defined(USE_LINUX_CD)
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struct cdrom_tochdr tochdr;
#elif defined(USE_BSD_CD)
struct ioc_toc_header tochdr;
#endif
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cdValid = false;
if ( ioctl(cdfile, CDROMREADTOCHDR, &tochdr) == -1 )
{
Con_DPrintf("CD readtochdr ioctl failed\n");
return -1;
}
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#if defined(USE_LINUX_CD)
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if (tochdr.cdth_trk0 < 1)
#elif defined(USE_BSD_CD)
if (tochdr.starting_track < 1)
#endif
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{
Con_DPrintf("CDAudio: no music tracks\n");
return -1;
}
cdValid = true;
#if defined(USE_LINUX_CD)
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maxTrack = tochdr.cdth_trk1;
#elif defined(USE_BSD_CD)
maxTrack = tochdr.ending_track;
#endif
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return 0;
}
void CDAudio_Play(byte track, qboolean looping)
{
#if defined(USE_LINUX_CD)
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struct cdrom_tocentry entry;
struct cdrom_ti ti;
#elif defined(USE_BSD_CD)
#ifdef HAVE_STRUCT_IOC_READ_TOC_SINGLE_ENTRY_ENTRY
struct ioc_read_toc_single_entry entry;
#endif
struct ioc_play_track ti;
#endif
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if (cdfile == -1 || !enabled)
return;
if (!cdValid)
{
CDAudio_GetAudioDiskInfo();
if (!cdValid)
return;
}
track = remap[track];
if (track < 1 || track > maxTrack)
{
Con_DPrintf("CDAudio: Bad track number %u.\n", track);
return;
}
#if !defined(USE_BSD_CD) || defined(HAVE_STRUCT_IOC_READ_TOC_SINGLE_ENTRY_ENTRY)
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// don't try to play a non-audio track
#if defined(USE_LINUX_CD)
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entry.cdte_track = track;
entry.cdte_format = CDROM_MSF;
#elif defined(USE_BSD_CD)
entry.track = track;
entry.address_format = CD_MSF_FORMAT;
#endif
if ( ioctl(cdfile, CDROMREADTOCENTRY, &entry) == -1 )
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{
Con_DPrintf("ioctl cdromreadtocentry failed\n");
return;
}
#if defined(USE_LINUX_CD)
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if (entry.cdte_ctrl == CDROM_DATA_TRACK)
#elif defined(USE_BSD_CD)
/* XXX: Is this magic number really necessary? */
if (entry.entry.control & 4)
#endif
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{
Con_Printf("CDAudio: track %i is not audio\n", track);
return;
}
#endif /* HAVE_STRUCT_IOC_READ_TOC_SINGLE_ENTRY_ENTRY */
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if (playing)
{
if (playTrack == track)
return;
CDAudio_Stop();
}
#if defined(USE_LINUX_CD)
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ti.cdti_trk0 = track;
ti.cdti_trk1 = track;
ti.cdti_ind0 = 1;
ti.cdti_ind1 = 99;
#elif defined(USE_BSD_CD)
ti.start_track = track;
ti.end_track = track;
ti.start_index = 1;
ti.end_index = 99;
#endif
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#ifdef USE_BSD_CD
if (ioctl(cdfile, CDIOCSTART) == -1) {
Con_DPrintf("CD start ioctl failed\n");
}
#endif
if (ioctl(cdfile, CDROMPLAYTRKIND, &ti) == -1) {
Con_DPrintf("CD play ioctl failed\n");
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return;
}
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if ( ioctl(cdfile, CDROMRESUME) == -1 )
Con_DPrintf("CD resume ioctl failed\n");
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playLooping = looping;
playTrack = track;
playing = true;
if (cdvolume == 0.0)
CDAudio_Pause ();
}
void CDAudio_Stop(void)
{
if (cdfile == -1 || !enabled)
return;
if (!playing)
return;
if ( ioctl(cdfile, CDROMSTOP) == -1 )
Con_DPrintf("CD stop ioctl failed (%d)\n", errno);
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wasPlaying = false;
playing = false;
}
void CDAudio_Pause(void)
{
if (cdfile == -1 || !enabled)
return;
if (!playing)
return;
if ( ioctl(cdfile, CDROMPAUSE) == -1 )
Con_DPrintf("CD pause ioctl failed\n");
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wasPlaying = playing;
playing = false;
}
void CDAudio_Resume(void)
{
if (cdfile == -1 || !enabled)
return;
if (!cdValid)
return;
if (!wasPlaying)
return;
if ( ioctl(cdfile, CDROMRESUME) == -1 )
Con_DPrintf("CD resume ioctl failed\n");
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playing = true;
}
void CDAudio_Update(void)
{
#if defined(USE_LINUX_CD)
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struct cdrom_subchnl subchnl;
#elif defined(USE_BSD_CD)
struct ioc_read_subchannel subchnl;
struct cd_sub_channel_info subchnldata;
#endif
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static time_t lastchk;
if (!enabled)
return;
if (bgmvolume.value != cdvolume)
{
if (cdvolume)
{
Cvar_SetValue ("bgmvolume", 0.0);
cdvolume = bgmvolume.value;
CDAudio_Pause ();
}
else
{
Cvar_SetValue ("bgmvolume", 1.0);
cdvolume = bgmvolume.value;
CDAudio_Resume ();
}
}
if (playing && lastchk < time(NULL)) {
lastchk = time(NULL) + 2; //two seconds between chks
#if defined(USE_LINUX_CD)
subchnl.cdsc_format = CDROM_MSF;
#elif defined(USE_BSD_CD)
subchnl.address_format = CD_MSF_FORMAT;
subchnl.data_format = CD_CURRENT_POSITION;
subchnl.track = 0;
subchnl.data_len = sizeof(subchnldata);
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subchnl.data = &subchnldata;
#endif
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if (ioctl(cdfile, CDROMSUBCHNL, &subchnl) == -1 ) {
Con_DPrintf("CD subcchannel ioctl failed\n");
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playing = false;
return;
}
#if defined(USE_LINUX_CD)
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if (subchnl.cdsc_audiostatus != CDROM_AUDIO_PLAY &&
subchnl.cdsc_audiostatus != CDROM_AUDIO_PAUSED)
#elif defined(USE_BSD_CD)
if (subchnl.data->header.audio_status != CD_AS_PLAY_IN_PROGRESS
&& subchnl.data->header.audio_status != CD_AS_PLAY_PAUSED)
#endif
{
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playing = false;
if (playLooping)
CDAudio_Play(playTrack, true);
}
}
}
int CDAudio_Init(void)
{
int i;
#ifndef QUAKEWORLD
if (cls.state == ca_dedicated)
return -1;
#endif
if (COM_CheckParm("-nocdaudio"))
return -1;
if ((i = COM_CheckParm("-cddev")) != 0 && i < com_argc - 1) {
strncpy(cd_dev, com_argv[i + 1], sizeof(cd_dev));
cd_dev[sizeof(cd_dev) - 1] = 0;
}
if ((cdfile = open(cd_dev, O_RDONLY)) == -1) {
Con_Printf("CDAudio_Init: open of \"%s\" failed (%i)\n", cd_dev, errno);
cdfile = -1;
return -1;
}
for (i = 0; i < 100; i++)
remap[i] = i;
initialized = true;
enabled = true;
if (CDAudio_GetAudioDiskInfo())
{
Con_Printf("CDAudio_Init: No CD in player.\n");
cdValid = false;
}
Cmd_AddCommand ("cd", CD_f);
Con_Printf("CD Audio Initialized\n");
return 0;
}
void CDAudio_Shutdown(void)
{
if (!initialized)
return;
CDAudio_Stop();
close(cdfile);
cdfile = -1;
}