/* ** music_cd.cpp ** **--------------------------------------------------------------------------- ** Copyright 1999-2003 Randy Heit ** All rights reserved. ** ** Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions ** are met: ** ** 1. Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** 2. Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in the ** documentation and/or other materials provided with the distribution. ** 3. The name of the author may not be used to endorse or promote products ** derived from this software without specific prior written permission. ** ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. **--------------------------------------------------------------------------- ** */ #include "i_musicinterns.h" #include "i_cd.h" #include "files.h" void CDSong::Play (bool looping, int subsong) { m_Status = STATE_Stopped; m_Looping = looping; if (m_Track != 0 ? CD_Play (m_Track, looping) : CD_PlayCD (looping)) { m_Status = STATE_Playing; } } void CDSong::Pause () { if (m_Status == STATE_Playing) { CD_Pause (); m_Status = STATE_Paused; } } void CDSong::Resume () { if (m_Status == STATE_Paused) { if (CD_Resume ()) m_Status = STATE_Playing; } } void CDSong::Stop () { if (m_Status != STATE_Stopped) { m_Status = STATE_Stopped; CD_Stop (); } } CDSong::~CDSong () { Stop (); m_Inited = false; } CDSong::CDSong (int track, int id) { bool success; m_Inited = false; if (id != 0) { success = CD_InitID (id); } else { success = CD_Init (); } if (success && (track == 0 || CD_CheckTrack (track))) { m_Inited = true; m_Track = track; } } bool CDSong::IsPlaying () { if (m_Status == STATE_Playing) { if (CD_GetMode () != CDMode_Play) { Stop (); } } return m_Status != STATE_Stopped; } CDDAFile::CDDAFile (MusicIO::FileInterface* reader) : CDSong () { uint32_t chunk; uint16_t track; uint32_t discid; auto endpos = reader->tell() + reader->filelength() - 8; // I_RegisterSong already identified this as a CDDA file, so we // just need to check the contents we're interested in. reader->seek(12, SEEK_CUR); while (reader->tell() < endpos) { reader->read(&chunk, 4); if (chunk != (('f')|(('m')<<8)|(('t')<<16)|((' ')<<24))) { reader->read(&chunk, 4); reader->seek(LittleLong(chunk), SEEK_CUR); } else { reader->seek(6, SEEK_CUR); reader->read(&track, 2); reader->read(&discid, 4); if (CD_InitID (LittleLong(discid)) && CD_CheckTrack (LittleShort(track))) { m_Inited = true; m_Track = track; } return; } } }