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