utils/wxMMedia2/lib/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 "cdbase.h"
  34 #include "cdunix.h"
  35
  36 IMPLEMENT_DYNAMIC_CLASS(wxCDAudioLinux, wxCDAudio)
  37
  38 wxCDAudioLinux::wxCDAudioLinux()
  39   : wxCDAudio(), m_fd(-1)
  40 {
  41   OpenDevice("/dev/cdrom");
  42 }
  43
  44 wxCDAudioLinux::wxCDAudioLinux(const char *dev_name)
  45   : wxCDAudio(), m_fd(-1)
  46 {
  47   OpenDevice(dev_name);
  48 }
  49
  50 wxCDAudioLinux::~wxCDAudioLinux()
  51 {
  52   if (m_fd != -1) {
  53     close(m_fd);
  54     wxDELETE(m_trksize);
  55     wxDELETE(m_trkpos);
  56   }
  57 }
  58
  59 void wxCDAudioLinux::OpenDevice(const char *dev_name)
  60 {
  61   struct cdrom_tocentry entry, old_entry;
  62   struct cdrom_tochdr diskinf;
  63   struct cdrom_msf0 *msf = &entry.cdte_addr.msf,
  64                     *old_msf = &old_entry.cdte_addr.msf;
  65   wxCDtime *the_track;
  66   wxCDtime tot_tm;
  67   wxUint8 nb_tracks, i;
  68   int hour, minute, second;
  69
  70   if (m_fd != -1)
  71     return;
  72
  73   m_fd = open(dev_name, O_RDONLY);
  74   if (m_fd == -1) {
  75     m_toc = NULL;
  76     return;
  77   }
  78   m_status = STOPPED;
  79
  80   ioctl(m_fd, CDROMREADTOCHDR, &diskinf);
  81
  82   nb_tracks = diskinf.cdth_trk1-diskinf.cdth_trk0+1;
  83   m_trksize = new wxCDtime[nb_tracks+1];
  84   m_trkpos  = new wxCDtime[nb_tracks+1];
  85
  86   old_msf->minute = 0;
  87   old_msf->second = 0;
  88   for (i=diskinf.cdth_trk0;i<=diskinf.cdth_trk1;i++) {
  89     entry.cdte_track = i;
  90     entry.cdte_format = CDROM_MSF;
  91     ioctl(m_fd, CDROMREADTOCENTRY, &entry);
  92
  93     minute = msf->minute - old_msf->minute;
  94     second = msf->second - old_msf->second;
  95     if (second < 0) {
  96       minute--;
  97       second += 60;
  98     }
  99
 100     hour = minute / 60;
 101     minute %= 60;
 102
 103     the_track = &m_trksize[i-diskinf.cdth_trk0];
 104     the_track->track = i-diskinf.cdth_trk0;
 105     the_track->hour = hour;
 106     the_track->min = minute;
 107     the_track->sec = second;
 108
 109     the_track = &m_trkpos[i-diskinf.cdth_trk0];
 110     the_track->track = i-diskinf.cdth_trk0;
 111     the_track->hour = old_msf->minute / 60;
 112     the_track->min = old_msf->minute % 60;
 113     the_track->sec = old_msf->second;
 114     old_entry = entry;
 115   }
 116
 117   entry.cdte_track = CDROM_LEADOUT;
 118   entry.cdte_format = CDROM_MSF;
 119   ioctl(m_fd, CDROMREADTOCENTRY, &entry);
 120
 121   tot_tm.track = nb_tracks;
 122   tot_tm.hour = msf->minute / 60;
 123   tot_tm.min = msf->minute % 60;
 124   tot_tm.sec = msf->second % 60;
 125
 126   m_trksize[nb_tracks].track = nb_tracks;
 127   minute = msf->minute - old_msf->minute;
 128   second = msf->second - old_msf->second;
 129   if (second < 0) {
 130     minute--;
 131     second += 60;
 132   }
 133   hour = minute / 60;
 134   minute %= 60;
 135
 136   m_trksize[nb_tracks].hour = hour;
 137   m_trksize[nb_tracks].min  = minute;
 138   m_trksize[nb_tracks].sec  = second;
 139   m_trkpos[nb_tracks].track = nb_tracks;
 140   m_trkpos[nb_tracks].hour  = old_msf->minute / 60;
 141   m_trkpos[nb_tracks].min   = old_msf->minute % 60;
 142   m_trkpos[nb_tracks].sec   = old_msf->second;
 143
 144   m_toc = new CDtoc(tot_tm, m_trksize, m_trkpos);
 145 }
 146
 147 bool wxCDAudioLinux::Play(const wxCDtime& beg_time, const wxCDtime& end_time)
 148 {
 149   struct cdrom_msf track_msf;
 150
 151   track_msf.cdmsf_min0 = beg_time.hour * 60 + beg_time.min;
 152   track_msf.cdmsf_sec0 = beg_time.sec;
 153   track_msf.cdmsf_frame0 = 0;
 154   track_msf.cdmsf_min1 = end_time.hour * 60 + end_time.min;
 155   track_msf.cdmsf_sec1 = end_time.sec;
 156   track_msf.cdmsf_frame1 = 0;
 157   return (ioctl(m_fd, CDROMPLAYMSF, &track_msf) != -1);
 158 }
 159
 160 bool wxCDAudioLinux::Pause()
 161 {
 162   return (ioctl(m_fd, CDROMPAUSE, 0) != -1);
 163 }
 164
 165 bool wxCDAudioLinux::Resume()
 166 {
 167   return (ioctl(m_fd, CDROMRESUME, 0) != -1);
 168 }
 169
 170 wxCDAudio::CDstatus wxCDAudioLinux::GetStatus()
 171 {
 172   struct cdrom_subchnl subchnl;
 173   ioctl(m_fd, CDROMSUBCHNL, &subchnl);
 174   switch (subchnl.cdsc_audiostatus) {
 175   case CDROM_AUDIO_PLAY: return PLAYING;
 176   case CDROM_AUDIO_PAUSED: return PAUSED;
 177   case CDROM_AUDIO_COMPLETED: return STOPPED;
 178   }
 179
 180   return STOPPED;
 181 }
 182
 183 wxCDtime wxCDAudioLinux::GetTime()
 184 {
 185   wxCDtime cdtime;
 186   struct cdrom_subchnl subchnl;
 187
 188   ioctl(m_fd, CDROMSUBCHNL, &subchnl);
 189   cdtime.track = subchnl.cdsc_trk;
 190   cdtime.min = subchnl.cdsc_reladdr.msf.minute;
 191   cdtime.hour = cdtime.min / 60;
 192   cdtime.min %= 60;
 193   cdtime.sec = subchnl.cdsc_reladdr.msf.second;
 194
 195   return cdtime;
 196 }
 197
 198 wxCDAudio::CDtoc& wxCDAudioLinux::GetToc()
 199 {
 200   return *m_toc;
 201 }