quakeforge/libs/audio/cd/cd_linux.c

465 lines
9 KiB
C

/*
cd_linux.c
(description)
Copyright (C) 1996-1997 Id Software, Inc.
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <time.h>
#include <linux/cdrom.h>
#include "QF/compat.h"
#include "QF/cdaudio.h"
#include "QF/cmd.h"
#include "QF/console.h"
#include "QF/cvar.h"
#include "QF/qargs.h"
#include "QF/sound.h"
static qboolean cdValid = false;
static qboolean playing = false;
static qboolean wasPlaying = false;
static qboolean mus_enabled = false;
static qboolean playLooping = false;
static float cdvolume;
static byte remap[100];
static byte playTrack;
static byte maxTrack;
static int cdfile = -1;
cvar_t *mus_cddevice;
static void
CDAudio_Eject (void)
{
if (cdfile == -1 || !mus_enabled)
return; // no cd init'd
if (ioctl (cdfile, CDROMEJECT) == -1)
Con_DPrintf ("CDAudio: ioctl cdromeject failed\n");
}
static void
CDAudio_CloseDoor (void)
{
if (cdfile == -1 || !mus_enabled)
return; // no cd init'd
if (ioctl (cdfile, CDROMCLOSETRAY) == -1)
Con_DPrintf ("CDAudio: ioctl cdromclosetray failed\n");
}
static int
CDAudio_GetAudioDiskInfo (void)
{
struct cdrom_tochdr tochdr;
cdValid = false;
if (ioctl (cdfile, CDROMREADTOCHDR, &tochdr) == -1) {
Con_DPrintf ("CDAudio: ioctl cdromreadtochdr failed\n");
return -1;
}
if (tochdr.cdth_trk0 < 1) {
Con_DPrintf ("CDAudio: no music tracks\n");
return -1;
}
cdValid = true;
maxTrack = tochdr.cdth_trk1;
return 0;
}
void
CDAudio_Play (byte track, qboolean looping)
{
struct cdrom_tocentry entry0;
struct cdrom_tocentry entry1;
struct cdrom_msf msf;
if (cdfile == -1 || !mus_enabled)
return;
if (!cdValid) {
CDAudio_GetAudioDiskInfo ();
if (!cdValid)
return;
}
track = remap[track];
if (track < 1 || track > maxTrack) {
CDAudio_Stop ();
return;
}
// don't try to play a non-audio track
entry0.cdte_track = track;
entry0.cdte_format = CDROM_MSF;
if (ioctl (cdfile, CDROMREADTOCENTRY, &entry0) == -1) {
Con_DPrintf ("CDAudio: ioctl cdromreadtocentry failed\n");
return;
}
entry1.cdte_track = track + 1;
entry1.cdte_format = CDROM_MSF;
if (entry1.cdte_track > maxTrack) {
entry1.cdte_track = CDROM_LEADOUT;
}
if (ioctl (cdfile, CDROMREADTOCENTRY, &entry1) == -1) {
Con_DPrintf ("CDAudio: ioctl cdromreadtocentry failed\n");
return;
}
if (entry0.cdte_ctrl == CDROM_DATA_TRACK) {
Con_Printf ("track %i is not audio\n", track);
return;
}
if (playing) {
if (playTrack == track)
return;
CDAudio_Stop ();
}
msf.cdmsf_min0 = entry0.cdte_addr.msf.minute;
msf.cdmsf_sec0 = entry0.cdte_addr.msf.second;
msf.cdmsf_frame0 = entry0.cdte_addr.msf.frame;
msf.cdmsf_min1 = entry1.cdte_addr.msf.minute;
msf.cdmsf_sec1 = entry1.cdte_addr.msf.second;
msf.cdmsf_frame1 = entry1.cdte_addr.msf.frame;
Con_DPrintf ("%2d:%02d:%02d %2d:%02d:%02d\n",
msf.cdmsf_min0,
msf.cdmsf_sec0,
msf.cdmsf_frame0,
msf.cdmsf_min1, msf.cdmsf_sec1, msf.cdmsf_frame1);
if (ioctl (cdfile, CDROMPLAYMSF, &msf) == -1) {
Con_DPrintf ("CDAudio: ioctl cdromplaytrkind failed (%s)\n",
strerror (errno));
return;
}
// if ( ioctl(cdfile, CDROMRESUME) == -1 )
// Con_DPrintf("CDAudio: ioctl cdromresume failed\n");
playLooping = looping;
playTrack = track;
playing = true;
if (cdvolume == 0.0)
CDAudio_Pause ();
}
void
CDAudio_Stop (void)
{
if (cdfile == -1 || !mus_enabled)
return;
if (!playing)
return;
if (ioctl (cdfile, CDROMSTOP) == -1)
Con_DPrintf ("CDAudio: ioctl cdromstop failed (%d)\n", errno);
wasPlaying = false;
playing = false;
}
void
CDAudio_Pause (void)
{
if (cdfile == -1 || !mus_enabled)
return;
if (!playing)
return;
if (ioctl (cdfile, CDROMPAUSE) == -1)
Con_DPrintf ("CDAudio: ioctl cdrompause failed\n");
wasPlaying = playing;
playing = false;
}
void
CDAudio_Resume (void)
{
if (cdfile == -1 || !mus_enabled)
return;
if (!cdValid)
return;
if (!wasPlaying)
return;
if (ioctl (cdfile, CDROMRESUME) == -1)
Con_DPrintf ("CDAudio: ioctl cdromresume failed\n");
playing = true;
}
static void
CD_f (void)
{
char *command;
int ret;
int n;
if (Cmd_Argc () < 2)
return;
command = Cmd_Argv (1);
if (strequal (command, "on")) {
mus_enabled = true;
return;
}
if (strequal (command, "off")) {
if (playing)
CDAudio_Stop ();
mus_enabled = false;
return;
}
if (strequal (command, "reset")) {
mus_enabled = true;
if (playing)
CDAudio_Stop ();
for (n = 0; n < 100; n++)
remap[n] = n;
CDAudio_GetAudioDiskInfo ();
return;
}
if (strequal (command, "remap")) {
ret = Cmd_Argc () - 2;
if (ret <= 0) {
for (n = 1; n < 100; n++)
if (remap[n] != n)
Con_Printf (" %u -> %u\n", n, remap[n]);
return;
}
for (n = 1; n <= ret; n++)
remap[n] = atoi (Cmd_Argv (n + 1));
return;
}
if (strequal (command, "close")) {
CDAudio_CloseDoor ();
return;
}
if (!cdValid) {
CDAudio_GetAudioDiskInfo ();
if (!cdValid) {
Con_Printf ("No CD in player.\n");
return;
}
}
if (strequal (command, "play")) {
CDAudio_Play ((byte) atoi (Cmd_Argv (2)), false);
return;
}
if (strequal (command, "loop")) {
CDAudio_Play ((byte) atoi (Cmd_Argv (2)), true);
return;
}
if (strequal (command, "stop")) {
CDAudio_Stop ();
return;
}
if (strequal (command, "pause")) {
CDAudio_Pause ();
return;
}
if (strequal (command, "resume")) {
CDAudio_Resume ();
return;
}
if (strequal (command, "eject")) {
if (playing)
CDAudio_Stop ();
CDAudio_Eject ();
cdValid = false;
return;
}
if (strequal (command, "info")) {
Con_Printf ("%u tracks\n", maxTrack);
if (playing)
Con_Printf ("Currently %s track %u\n",
playLooping ? "looping" : "playing", playTrack);
else if (wasPlaying)
Con_Printf ("Paused %s track %u\n",
playLooping ? "looping" : "playing", playTrack);
Con_Printf ("Volume is %g\n", cdvolume);
return;
}
}
void
CDAudio_Update (void)
{
struct cdrom_subchnl subchnl;
static time_t lastchk;
if (!mus_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
subchnl.cdsc_format = CDROM_MSF;
if (ioctl (cdfile, CDROMSUBCHNL, &subchnl) == -1) {
Con_DPrintf ("CDAudio: ioctl cdromsubchnl failed\n");
playing = false;
return;
}
if (subchnl.cdsc_audiostatus != CDROM_AUDIO_PLAY &&
subchnl.cdsc_audiostatus != CDROM_AUDIO_PAUSED) {
playing = false;
if (playLooping)
CDAudio_Play (playTrack, true);
}
}
}
void
Mus_CDChange (cvar_t *mus_cdaudio)
{
int i;
CDAudio_Shutdown ();
if (strequal(mus_cdaudio->string, "none"))
{
return;
}
cdfile = open (mus_cdaudio->string, O_RDONLY | O_NONBLOCK);
if (cdfile == -1)
{
Con_DPrintf ("Mus_CDInit: open of device \"%s\" failed (error %i)\n",
mus_cdaudio->string, errno);
return;
}
if (CDAudio_GetAudioDiskInfo ())
{
Con_Printf ("CDAudio_Init: No CD in player.\n");
cdValid = false;
}
for (i = 0; i < 100; i++)
remap[i] = i;
mus_enabled = true;
}
int
CDAudio_Init (void)
{
#if 0
if (cls.state == ca_dedicated)
return -1;
#endif
mus_cddevice = Cvar_Get("mus_cddevice", "/dev/cdrom", CVAR_NONE,
Mus_CDChange, "device to use for CD music");
Cmd_AddCommand ("cd", CD_f, "Control the CD player.\n"
"Commands:\n"
"eject - Eject the CD.\n"
"info - Reports information on the CD.\n"
"loop (track number) - Loops the specified track.\n"
"remap (track1) (track2) ... - Remap the current track order.\n"
"reset - Causes the CD audio to re-initialize.\n"
"resume - Will resume playback after pause.\n"
"off - Shuts down the CD audio system..\n"
"on - Re-enables the CD audio system after a cd off command.\n"
"pause - Pause the CD playback.\n"
"play (track number) - Plays the specified track one time.\n"
"stop - Stops the currently playing track.");
Con_Printf ("CD Audio Initialized\n");
return 0;
}
void
CDAudio_Shutdown (void)
{
if (cdfile != -1)
{
CDAudio_Stop ();
close (cdfile);
cdfile = -1;
}
mus_enabled = false;
}