utils/wxMMedia/cdunix.cpp

   1 ////////////////////////////////////////////////////////////////////////////////
   2 // Name:       cdlinux.cpp
   3 // Purpose:    wxMMedia
   4 // Author:     Guilhem Lavaux
   5 // Created:    1997
   6 // Updated:    1998
   7 // Copyright:  (C) 1997, 1998, Guilhem Lavaux
   8 // CVS Id: $Id$
   9 // License:    wxWindows license
  10 ////////////////////////////////////////////////////////////////////////////////
  11 #ifdef __GNUG__
  12 #pragma implementation "cdunix.h"
  13 #endif
  14
  15 #include <sys/types.h>
  16 #include <sys/ioctl.h>
  17 #include <stdio.h>
  18 #include <fcntl.h>
  19 #include <unistd.h>
  20
  21 #ifdef __linux__
  22 #include <linux/cdrom.h>
  23 #else
  24 // For Solaris
  25 #include <sys/cdio.h>
  26 #endif
  27
  28 #ifdef WX_PRECOMP
  29 #include "wx/wxprec.h"
  30 #else
  31 #include "wx/wx.h"
  32 #endif
  33 #include "mmtype.h"
  34 #include "cdunix.h"
  35
  36 wxCDAudioLinux::wxCDAudioLinux()
  37   : wxCDAudio(), m_fd(-1)
  38 {
  39   OpenDevice("/dev/cdrom");
  40 }
  41
  42 wxCDAudioLinux::wxCDAudioLinux(const char *dev_name)
  43   : wxCDAudio(), m_fd(-1)
  44 {
  45   OpenDevice(dev_name);
  46 }
  47
  48 wxCDAudioLinux::~wxCDAudioLinux()
  49 {
  50   if (m_fd != -1) {
  51     close(m_fd);
  52     wxDELETE(m_trksize);
  53     wxDELETE(m_trkpos);
  54   }
  55 }
  56
  57 void wxCDAudioLinux::OpenDevice(const char *dev_name)
  58 {
  59   struct cdrom_tocentry entry, old_entry;
  60   struct cdrom_tochdr diskinf;
  61   struct cdrom_msf0 *msf = &entry.cdte_addr.msf,
  62                     *old_msf = &old_entry.cdte_addr.msf;
  63   wxCDtime *the_track;
  64   wxCDtime tot_tm;
  65   wxUint8 nb_tracks, i;
  66   int hour, minute, second;
  67
  68   if (m_fd != -1)
  69     return;
  70
  71   m_fd = open(dev_name, O_RDONLY);
  72   if (m_fd == -1) {
  73     m_toc = NULL;
  74     return;
  75   }
  76   m_status = STOPPED;
  77
  78   ioctl(m_fd, CDROMREADTOCHDR, &diskinf);
  79
  80   nb_tracks = diskinf.cdth_trk1-diskinf.cdth_trk0+1;
  81   m_trksize = new wxCDtime[nb_tracks+1];
  82   m_trkpos  = new wxCDtime[nb_tracks+1];
  83
  84   old_msf->minute = 0;
  85   old_msf->second = 0;
  86   for (i=diskinf.cdth_trk0;i<=diskinf.cdth_trk1;i++) {
  87     entry.cdte_track = i;
  88     entry.cdte_format = CDROM_MSF;
  89     ioctl(m_fd, CDROMREADTOCENTRY, &entry);
  90
  91     minute = msf->minute - old_msf->minute;
  92     second = msf->second - old_msf->second;
  93     if (second < 0) {
  94       minute--;
  95       second += 60;
  96     }
  97
  98     hour = minute / 60;
  99     minute %= 60;
 100
 101     the_track = &m_trksize[i-diskinf.cdth_trk0];
 102     the_track->track = i-diskinf.cdth_trk0;
 103     the_track->hour = hour;
 104     the_track->min = minute;
 105     the_track->sec = second;
 106
 107     the_track = &m_trkpos[i-diskinf.cdth_trk0];
 108     the_track->track = i-diskinf.cdth_trk0;
 109     the_track->hour = old_msf->minute / 60;
 110     the_track->min = old_msf->minute % 60;
 111     the_track->sec = old_msf->second;
 112     old_entry = entry;
 113   }
 114
 115   entry.cdte_track = CDROM_LEADOUT;
 116   entry.cdte_format = CDROM_MSF;
 117   ioctl(m_fd, CDROMREADTOCENTRY, &entry);
 118
 119   tot_tm.track = nb_tracks;
 120   tot_tm.hour = msf->minute / 60;
 121   tot_tm.min = msf->minute % 60;
 122   tot_tm.sec = msf->second % 60;
 123
 124   m_trksize[nb_tracks].track = nb_tracks;
 125   minute = msf->minute - old_msf->minute;
 126   second = msf->second - old_msf->second;
 127   if (second < 0) {
 128     minute--;
 129     second += 60;
 130   }
 131   hour = minute / 60;
 132   minute %= 60;
 133
 134   m_trksize[nb_tracks].hour = hour;
 135   m_trksize[nb_tracks].min  = minute;
 136   m_trksize[nb_tracks].sec  = second;
 137   m_trkpos[nb_tracks].track = nb_tracks;
 138   m_trkpos[nb_tracks].hour  = old_msf->minute / 60;
 139   m_trkpos[nb_tracks].min   = old_msf->minute % 60;
 140   m_trkpos[nb_tracks].sec   = old_msf->second;
 141
 142   m_toc = new CDtoc(tot_tm, m_trksize, m_trkpos);
 143 }
 144
 145 bool wxCDAudioLinux::Play(const wxCDtime& beg_time, const wxCDtime& end_time)
 146 {
 147   struct cdrom_msf track_msf;
 148
 149   track_msf.cdmsf_min0 = beg_time.hour * 60 + beg_time.min;
 150   track_msf.cdmsf_sec0 = beg_time.sec;
 151   track_msf.cdmsf_frame0 = 0;
 152   track_msf.cdmsf_min1 = end_time.hour * 60 + end_time.min;
 153   track_msf.cdmsf_sec1 = end_time.sec;
 154   track_msf.cdmsf_frame1 = 0;
 155   return (ioctl(m_fd, CDROMPLAYMSF, &track_msf) != -1);
 156 }
 157
 158 bool wxCDAudioLinux::Pause()
 159 {
 160   return (ioctl(m_fd, CDROMPAUSE, 0) != -1);
 161 }
 162
 163 bool wxCDAudioLinux::Resume()
 164 {
 165   return (ioctl(m_fd, CDROMRESUME, 0) != -1);
 166 }
 167
 168 wxCDAudio::CDstatus wxCDAudioLinux::GetStatus()
 169 {
 170   struct cdrom_subchnl subchnl;
 171   ioctl(m_fd, CDROMSUBCHNL, &subchnl);
 172   switch (subchnl.cdsc_audiostatus) {
 173   case CDROM_AUDIO_PLAY: return PLAYING;
 174   case CDROM_AUDIO_PAUSED: return PAUSED;
 175   case CDROM_AUDIO_COMPLETED: return STOPPED;
 176   }
 177
 178   return STOPPED;
 179 }
 180
 181 wxCDtime wxCDAudioLinux::GetTime()
 182 {
 183   wxCDtime cdtime;
 184   struct cdrom_subchnl subchnl;
 185
 186   ioctl(m_fd, CDROMSUBCHNL, &subchnl);
 187   cdtime.track = subchnl.cdsc_trk;
 188   cdtime.min = subchnl.cdsc_reladdr.msf.minute;
 189   cdtime.hour = cdtime.min / 60;
 190   cdtime.min %= 60;
 191   cdtime.sec = subchnl.cdsc_reladdr.msf.second;
 192
 193   return cdtime;
 194 }
 195
 196 wxCDAudio::CDtoc& wxCDAudioLinux::GetToc()
 197 {
 198   return *m_toc;
 199 }