contrib/src/mmedia/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 "wx/wxprec.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/defs.h"
  19 #endif
  20
  21 #ifdef __BORLANDC__
  22     #pragma hdrstop
  23 #endif
  24
  25 // ---------------------------------------------------------------------------
  26 // MMedia headers
  27 // ---------------------------------------------------------------------------
  28
  29 #include "wx/mmedia/cdbase.h"
  30 #include "wx/mmedia/cdunix.h"
  31
  32 // ---------------------------------------------------------------------------
  33 // System headers
  34 // ---------------------------------------------------------------------------
  35
  36 #include <sys/types.h>
  37 #include <sys/ioctl.h>
  38 #include <stdio.h>
  39 #include <fcntl.h>
  40 #include <unistd.h>
  41
  42 #ifdef __linux__
  43 #include <linux/cdrom.h>
  44 #else
  45 // For Solaris
  46 #include <sys/cdio.h>
  47 #endif
  48
  49 // ---------------------------------------------------------------------------
  50 // Implementation
  51 // ---------------------------------------------------------------------------
  52
  53 IMPLEMENT_DYNAMIC_CLASS(wxCDAudioLinux, wxCDAudio)
  54
  55 wxCDAudioLinux::wxCDAudioLinux()
  56     : wxCDAudio(), m_fd(-1)
  57 {
  58   OpenDevice(wxT("/dev/cdrom"));
  59 }
  60
  61 wxCDAudioLinux::wxCDAudioLinux(const wxString& dev_name)
  62     : wxCDAudio(), m_fd(-1)
  63 {
  64   OpenDevice(dev_name);
  65 }
  66
  67 wxCDAudioLinux::~wxCDAudioLinux()
  68 {
  69   if (m_fd != -1) {
  70     close(m_fd);
  71     wxDELETE(m_trksize);
  72     wxDELETE(m_trkpos);
  73   }
  74 }
  75
  76 void wxCDAudioLinux::OpenDevice(const wxString& dev_name)
  77 {
  78   struct cdrom_tocentry entry, old_entry;
  79   struct cdrom_tochdr diskinf;
  80   struct cdrom_msf0 *msf = &entry.cdte_addr.msf,
  81                     *old_msf = &old_entry.cdte_addr.msf;
  82   wxCDtime *the_track;
  83   wxCDtime tot_tm;
  84   wxUint8 nb_tracks, i;
  85   int hour, minute, second;
  86
  87   if (m_fd != -1)
  88     return;
  89
  90   m_fd = open(dev_name.mb_str(), O_RDONLY);
  91   if (m_fd == -1) {
  92     m_toc = NULL;
  93     return;
  94   }
  95   m_status = STOPPED;
  96
  97   ioctl(m_fd, CDROMREADTOCHDR, &diskinf);
  98
  99   nb_tracks = diskinf.cdth_trk1-diskinf.cdth_trk0+1;
 100   m_trksize = new wxCDtime[nb_tracks+1];
 101   m_trkpos  = new wxCDtime[nb_tracks+1];
 102
 103   old_msf->minute = 0;
 104   old_msf->second = 0;
 105   for (i=diskinf.cdth_trk0;i<=diskinf.cdth_trk1;i++) {
 106     entry.cdte_track = i;
 107     entry.cdte_format = CDROM_MSF;
 108     ioctl(m_fd, CDROMREADTOCENTRY, &entry);
 109
 110     minute = msf->minute - old_msf->minute;
 111     second = msf->second - old_msf->second;
 112     if (second < 0) {
 113       minute--;
 114       second += 60;
 115     }
 116
 117     hour = minute / 60;
 118     minute %= 60;
 119
 120     the_track = &m_trksize[i-diskinf.cdth_trk0];
 121     the_track->track = i-diskinf.cdth_trk0;
 122     the_track->hour = hour;
 123     the_track->min = minute;
 124     the_track->sec = second;
 125
 126     the_track = &m_trkpos[i-diskinf.cdth_trk0];
 127     the_track->track = i-diskinf.cdth_trk0;
 128     the_track->hour = old_msf->minute / 60;
 129     the_track->min = old_msf->minute % 60;
 130     the_track->sec = old_msf->second;
 131     old_entry = entry;
 132   }
 133
 134   entry.cdte_track = CDROM_LEADOUT;
 135   entry.cdte_format = CDROM_MSF;
 136   ioctl(m_fd, CDROMREADTOCENTRY, &entry);
 137
 138   tot_tm.track = nb_tracks;
 139   tot_tm.hour = msf->minute / 60;
 140   tot_tm.min = msf->minute % 60;
 141   tot_tm.sec = msf->second % 60;
 142
 143   m_trksize[nb_tracks].track = nb_tracks;
 144   minute = msf->minute - old_msf->minute;
 145   second = msf->second - old_msf->second;
 146   if (second < 0) {
 147     minute--;
 148     second += 60;
 149   }
 150   hour = minute / 60;
 151   minute %= 60;
 152
 153   m_trksize[nb_tracks].hour = hour;
 154   m_trksize[nb_tracks].min  = minute;
 155   m_trksize[nb_tracks].sec  = second;
 156   m_trkpos[nb_tracks].track = nb_tracks;
 157   m_trkpos[nb_tracks].hour  = old_msf->minute / 60;
 158   m_trkpos[nb_tracks].min   = old_msf->minute % 60;
 159   m_trkpos[nb_tracks].sec   = old_msf->second;
 160
 161   m_toc = new CDtoc(tot_tm, m_trksize, m_trkpos);
 162 }
 163
 164 bool wxCDAudioLinux::Play(const wxCDtime& beg_time, const wxCDtime& end_time)
 165 {
 166   struct cdrom_msf track_msf;
 167
 168   track_msf.cdmsf_min0 = beg_time.hour * 60 + beg_time.min;
 169   track_msf.cdmsf_sec0 = beg_time.sec;
 170   track_msf.cdmsf_frame0 = 0;
 171   track_msf.cdmsf_min1 = end_time.hour * 60 + end_time.min;
 172   track_msf.cdmsf_sec1 = end_time.sec;
 173   track_msf.cdmsf_frame1 = 0;
 174   return (ioctl(m_fd, CDROMPLAYMSF, &track_msf) != -1);
 175 }
 176
 177 bool wxCDAudioLinux::Pause()
 178 {
 179   return (ioctl(m_fd, CDROMPAUSE, 0) != -1);
 180 }
 181
 182 bool wxCDAudioLinux::Resume()
 183 {
 184   return (ioctl(m_fd, CDROMRESUME, 0) != -1);
 185 }
 186
 187 wxCDAudio::CDstatus wxCDAudioLinux::GetStatus()
 188 {
 189   struct cdrom_subchnl subchnl;
 190   ioctl(m_fd, CDROMSUBCHNL, &subchnl);
 191   switch (subchnl.cdsc_audiostatus) {
 192   case CDROM_AUDIO_PLAY: return PLAYING;
 193   case CDROM_AUDIO_PAUSED: return PAUSED;
 194   case CDROM_AUDIO_COMPLETED: return STOPPED;
 195   }
 196
 197   return STOPPED;
 198 }
 199
 200 wxCDtime wxCDAudioLinux::GetTime()
 201 {
 202   wxCDtime cdtime;
 203   struct cdrom_subchnl subchnl;
 204
 205   ioctl(m_fd, CDROMSUBCHNL, &subchnl);
 206   cdtime.track = subchnl.cdsc_trk;
 207   cdtime.min = subchnl.cdsc_reladdr.msf.minute;
 208   cdtime.hour = cdtime.min / 60;
 209   cdtime.min %= 60;
 210   cdtime.sec = subchnl.cdsc_reladdr.msf.second;
 211
 212   return cdtime;
 213 }
 214
 215 wxCDAudio::CDtoc& wxCDAudioLinux::GetToc()
 216 {
 217   return *m_toc;
 218 }