ref: 4a30ac49c9338a034b76363300cae13330327837
parent: 6cf736d1ac86a82f8cb947abd1f6b007af4ff046
author: qwx <>
date: Fri Jun 1 08:32:44 EDT 2018
cd: preliminary implementation
--- a/cd.c
+++ b/cd.c
@@ -1,415 +1,201 @@
#include <u.h>
#include <libc.h>
#include <stdio.h>
+#include <thread.h>
+#include <regexp.h>
#include "dat.h"
#include "fns.h"
-qboolean cdValid = false;
-qboolean playing = false;
-qboolean wasPlaying = false;
-qboolean initialized = false;
-qboolean enabled = true;
-qboolean playLooping = false;
-float cdvolume;
-byte remap[100];
-byte playTrack;
-byte maxTrack;
-int cdfile = -1;
+static int cdread, cdloop, cdvol;
+static int ntrk, trk, chtrk;
+static char trtype;
+static int ctid = -1;
+static Reprog *pat;
+static cvar_t *ccdvol;
-cvar_t *cd_volume;
-cvar_t *cd_nocd;
-cvar_t *cd_dev;
-
-
-void CDAudio_Eject(void)
+static int
+cdinfo(void)
{- if (cdfile == -1 || !enabled)
- return;
+ int fd, i, n;
+ Dir *d;
- Com_DPrintf("CDAudio_Eject: PORTME\n");- /*
- if ( ioctl(cdfile, CDROMEJECT) == -1 )
- Com_DPrintf("ioctl cdromeject failed\n");- */
-}
+ ntrk = 0;
-void CDAudio_CloseDoor(void)
-{- if (cdfile == -1 || !enabled)
- return;
-
- Com_DPrintf("CDAudio_CloseDoor: PORTME\n");- /*
- if ( ioctl(cdfile, CDROMCLOSETRAY) == -1 )
- Com_DPrintf("ioctl cdromclosetray failed\n");- */
-}
-
-int CDAudio_GetAudioDiskInfo(void)
-{- cdValid = false;
- Com_DPrintf("CDAudio_GetAudioDiskInfo: PORTME\n");- return -1;
-
- /*
- struct cdrom_tochdr tochdr;
-
- if ( ioctl(cdfile, CDROMREADTOCHDR, &tochdr) == -1 )
- {- Com_DPrintf("ioctl cdromreadtochdr failed\n");+ if((fd = open("/mnt/cd", OREAD)) < 0)+ goto err;
+ if((n = dirreadall(fd, &d)) < 0)
+ goto err;
+ close(fd);
+ for(i = 0; i < n; i++)
+ if(regexec(pat, d[i].name, nil, 0)){+ if(!trtype)
+ trtype = d[i].name[0];
+ ntrk++;
+ }
+ free(d);
+ if(ntrk < 1)
return -1;
- }
-
- if (tochdr.cdth_trk0 < 1)
- {- Com_DPrintf("CDAudio: no music tracks\n");- return -1;
- }
-
- cdValid = true;
- maxTrack = tochdr.cdth_trk1;
return 0;
- */
-}
-void CDAudio_Pause(void)
-{- if (cdfile == -1 || !enabled)
- return;
- if (!playing)
- return;
-
- Com_DPrintf("CDAudio_GetAudioDiskInfo: PORTME\n");-
- /*
- if ( ioctl(cdfile, CDROMPAUSE) == -1 )
- Com_DPrintf("ioctl cdrompause failed\n");-
- wasPlaying = playing;
- playing = false;
- */
+err:
+ close(fd);
+ fprint(2, "cdinfo: %r\n");
+ return -1;
}
-void CDAudio_Play(int track, qboolean looping)
+static void
+cproc(void *)
{- if (cdfile == -1 || !enabled)
- return;
- if (!cdValid)
- {- CDAudio_GetAudioDiskInfo();
- if (!cdValid)
- return;
- }
+ int a, n, afd, fd;
+ char s[24];
+ uchar buf[Nsbuf];
+ short *p, *e;
- track = remap[track];
- if (track < 1 || track > maxTrack)
- {- Com_DPrintf("CDAudio: Bad track number %u.\n", track);+ if((afd = open("/dev/audio", OWRITE)) < 0)return;
+ fd = -1;
+ for(;;){+ if(chtrk > 0){+ close(fd);
+ trk = chtrk;
+ snprint(s, sizeof s, "/mnt/cd/%c%03ud", trtype, trk);
+ if((fd = open(s, OREAD)) < 0)
+ fprint(2, "cproc: %r");
+ chtrk = 0;
+ }
+ if(!cdread || fd < 0){+ sleep(1);
+ continue;
+ }
+ if((n = read(fd, buf, sizeof buf)) < 0)
+ break;
+ if(n == 0){+ if(cdloop)
+ seek(fd, 0, 0);
+ else{+ close(fd);
+ fd = -1;
+ }
+ continue;
+ }
+ p = (short *)buf;
+ e = (short *)(buf+sizeof buf);
+ while(p < e){+ a = *p * cdvol >> 8;
+ if(a < (short)0x8000)
+ a = 0x8000;
+ *p++ = a;
+ }
+ if(write(afd, buf, n) != n)
+ break;
}
+}
- USED(looping);
- Com_DPrintf("CDAudio_Play: PORTME\n");-
- /*
- struct cdrom_tocentry entry;
- struct cdrom_ti ti;
-
- // don't try to play a non-audio track
- entry.cdte_track = track;
- entry.cdte_format = CDROM_MSF;
- if ( ioctl(cdfile, CDROMREADTOCENTRY, &entry) == -1 )
- {- Com_DPrintf("ioctl cdromreadtocentry failed\n");+void
+CDAudio_Play(int nt, qboolean loop)
+{+ if(ctid < 0)
return;
- }
- if (entry.cdte_ctrl == CDROM_DATA_TRACK)
- {- Com_Printf("CDAudio: track %i is not audio\n", track);+ nt -= 1; /* d001 was assumed part of the track list */
+ if(nt < 1 || nt > ntrk){+ Com_Printf("cd: invalid track number %d\n", nt);return;
}
- if (playing)
- {- if (playTrack == track)
- return;
- CDAudio_Stop();
- }
-
- ti.cdti_trk0 = track;
- ti.cdti_trk1 = track;
- ti.cdti_ind0 = 1;
- ti.cdti_ind1 = 99;
- if ( ioctl(cdfile, CDROMPLAYTRKIND, &ti) == -1 )
- {- Com_DPrintf("ioctl cdromplaytrkind failed\n");- return;
- }
- if ( ioctl(cdfile, CDROMRESUME) == -1 )
- Com_DPrintf("ioctl cdromresume failed\n");-
- playLooping = looping;
- playTrack = track;
- playing = true;
-
- if (cd_volume->value == 0.0)
- CDAudio_Pause ();
- */
+ chtrk = nt;
+ cdloop = loop;
+ if(cdvol > 0)
+ cdread = 1;
}
-
-void CDAudio_Stop(void)
+void
+CDAudio_Stop(void)
{- if (cdfile == -1 || !enabled)
- return;
- if (!playing)
- return;
-
- Com_DPrintf("CDAudio_Stop: PORTME\n");-
- /*
- if ( ioctl(cdfile, CDROMSTOP) == -1 )
- Com_DPrintf("ioctl cdromstop failed (%d)\n", errno);-
- wasPlaying = false;
- playing = false;
- */
+ cdread = 0;
+ cdloop = 0;
}
-void CDAudio_Resume(void)
+void
+CDAudio_Pause(void)
{- if (cdfile == -1 || !enabled)
- return;
- if (!cdValid)
- return;
- if (!wasPlaying)
- return;
+ cdread = 0;
+}
- Com_DPrintf("CDAudio_Stop: PORTME\n");-
- /*
- if ( ioctl(cdfile, CDROMRESUME) == -1 )
- Com_DPrintf("ioctl cdromresume failed\n");- playing = true;
- */
+void
+CDAudio_Resume(void)
+{+ cdread = 1;
}
-static void CD_f (void)
+void
+CD_f(void)
{- char *command;
- int n, ret;
+ char *cmd;
- if (Cmd_Argc() < 2)
+ if(Cmd_Argc() < 2)
return;
-
- command = Cmd_Argv (1);
-
- if (cistrcmp(command, "on") == 0)
- {- enabled = true;
+ cmd = Cmd_Argv(1);
+ if(cistrcmp(cmd, "play") == 0){+ CDAudio_Play(atoi(Cmd_Argv(2)), false);
return;
- }
-
- if (cistrcmp(command, "off") == 0)
- {- if (playing)
- CDAudio_Stop();
- enabled = false;
+ }else if(cistrcmp(cmd, "loop") == 0){+ CDAudio_Play(atoi(Cmd_Argv(2)), true);
return;
- }
-
- if (cistrcmp(command, "reset") == 0)
- {- enabled = true;
- if (playing)
- CDAudio_Stop();
- for (n = 0; n < 100; n++)
- remap[n] = n;
- CDAudio_GetAudioDiskInfo();
- return;
- }
-
- if (cistrcmp(command, "remap") == 0)
- {- ret = Cmd_Argc() - 2;
- if (ret <= 0)
- {- for (n = 1; n < 100; n++)
- if (remap[n] != n)
- Com_Printf(" %u -> %u\n", n, remap[n]);- return;
- }
- for (n = 1; n <= ret; n++)
- remap[n] = atoi(Cmd_Argv (n+1));
- return;
- }
-
- if (cistrcmp(command, "close") == 0)
- {- CDAudio_CloseDoor();
- return;
- }
-
- if (!cdValid)
- {- CDAudio_GetAudioDiskInfo();
- if (!cdValid)
- {- Com_Printf("No CD in player.\n");- return;
- }
- }
-
- if (cistrcmp(command, "play") == 0)
- {- CDAudio_Play((byte)atoi(Cmd_Argv (2)), false);
- return;
- }
-
- if (cistrcmp(command, "loop") == 0)
- {- CDAudio_Play((byte)atoi(Cmd_Argv (2)), true);
- return;
- }
-
- if (cistrcmp(command, "stop") == 0)
- {+ }else if(cistrcmp(cmd, "stop") == 0){CDAudio_Stop();
return;
- }
-
- if (cistrcmp(command, "pause") == 0)
- {+ }else if(cistrcmp(cmd, "pause") == 0){CDAudio_Pause();
return;
- }
-
- if (cistrcmp(command, "resume") == 0)
- {+ }else if(cistrcmp(cmd, "resume") == 0){CDAudio_Resume();
return;
- }
-
- if (cistrcmp(command, "eject") == 0)
- {- if (playing)
- CDAudio_Stop();
- CDAudio_Eject();
- cdValid = false;
+ }else if(cistrcmp(cmd, "info") == 0){+ Com_Printf("track %d/%d; loop %d; vol %d\n", trk, ntrk, cdloop, cdvol);return;
}
-
- if (cistrcmp(command, "info") == 0)
- {- Com_Printf("%u tracks\n", maxTrack);- if (playing)
- Com_Printf("Currently %s track %u\n", playLooping ? "looping" : "playing", playTrack);- else if (wasPlaying)
- Com_Printf("Paused %s track %u\n", playLooping ? "looping" : "playing", playTrack);- Com_Printf("Volume is %f\n", cdvolume);- return;
- }
}
-void CDAudio_Update(void)
+void
+CDAudio_Update(void)
{- if (cdfile == -1 || !enabled)
- return;
- if (cd_volume && cd_volume->value != cdvolume)
- {- if (cdvolume)
- {- Cvar_SetValue ("cd_volume", 0.0);- cdvolume = cd_volume->value;
- CDAudio_Pause ();
- }
- else
- {- Cvar_SetValue ("cd_volume", 1.0);- cdvolume = cd_volume->value;
- CDAudio_Resume ();
- }
- }
+ int v;
- Com_DPrintf("CDAudio_Stop: PORTME\n");-
- /*
- struct cdrom_subchnl subchnl;
- static time_t lastchk;
-
- if (playing && lastchk < time(NULL)) {- lastchk = time(NULL) + 2; //two seconds between chks
- subchnl.cdsc_format = CDROM_MSF;
- if (ioctl(cdfile, CDROMSUBCHNL, &subchnl) == -1 ) {- Com_DPrintf("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);
- }
- }
- */
+ if(ctid < 0)
+ return;
+ v = cdvol;
+ cdvol = ccdvol->value * 256;
+ if(v <= 0 && cdvol > 0)
+ cdread = 1;
+ else if(v > 0 && cdvol <= 0)
+ cdread = 0;
}
-int CDAudio_Init(void)
+int
+CDAudio_Init(void)
{- int i;
- cvar_t *cv;
-
- cv = Cvar_Get ("nocdaudio", "0", CVAR_NOSET);- if (cv->value)
+ pat = regcomp("[au][0-9][0-9][0-9]");+ if(cdinfo() < 0)
return -1;
+ ccdvol = Cvar_Get("cdvol", "1", CVAR_ARCHIVE);+ if((ctid = proccreate(cproc, nil, 16384)) < 0)
+ sysfatal("proccreate: %r");+ Cmd_AddCommand("cd", CD_f);- cd_nocd = Cvar_Get ("cd_nocd", "0", CVAR_ARCHIVE );- if ( cd_nocd->value)
- return -1;
-
- cd_volume = Cvar_Get ("cd_volume", "1", CVAR_ARCHIVE);-
- cd_dev = Cvar_Get("cd_dev", "/dev/cdrom", CVAR_ARCHIVE);-
- if((cdfile = open(cd_dev->string, OREAD)) < 0){- fprint(2, "CDAudio_Init: %r\n");
- Com_Printf("CDAudio_Init: failed to open \"%s\"\n", cd_dev->string);- cdfile = -1;
- return -1;
- }
-
- for (i = 0; i < 100; i++)
- remap[i] = i;
- initialized = true;
- enabled = true;
-
- if (CDAudio_GetAudioDiskInfo())
- {- Com_Printf("CDAudio_Init: No CD in player.\n");- cdValid = false;
- }
-
- Cmd_AddCommand ("cd", CD_f);-
Com_Printf("CD Audio Initialized\n");-
return 0;
}
-void CDAudio_Activate (qboolean active)
+void
+CDAudio_Shutdown(void)
{- if (active)
- CDAudio_Resume ();
- else
- CDAudio_Pause ();
-}
-
-void CDAudio_Shutdown(void)
-{- if (!initialized)
+ if(ctid < 0)
return;
+
CDAudio_Stop();
- close(cdfile);
- cdfile = -1;
+ postnote(PNPROC, ctid, "shutdown");
+ ctid = -1;
+ free(pat);
+ pat = nil;
+ cdread = cdloop = 0;
}