2002-04-21 17:46:42 +00:00
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/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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2003-03-06 21:46:56 +00:00
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* Copyright (C) 2001-2003 The ScummVM project
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2002-04-21 17:46:42 +00:00
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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2002-08-18 16:10:38 +00:00
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#ifndef MIXER_H
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#define MIXER_H
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2002-04-14 18:13:08 +00:00
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2003-05-18 13:39:02 +00:00
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#if defined(HAVE_CONFIG_H)
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#include "config.h"
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#endif
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2002-10-27 01:12:10 +00:00
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#ifdef USE_MAD
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2002-04-16 18:33:04 +00:00
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#include <mad.h>
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#endif
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2002-10-27 01:12:10 +00:00
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#ifdef USE_VORBIS
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#include <vorbis/vorbisfile.h>
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#endif
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2003-06-18 21:10:05 +00:00
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#include "stdafx.h"
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2002-09-08 01:08:12 +00:00
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#include "common/scummsys.h"
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#include "common/system.h"
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2003-06-15 01:56:47 +00:00
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2002-04-14 18:13:08 +00:00
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typedef uint32 PlayingSoundHandle;
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2002-08-24 15:31:37 +00:00
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2002-09-02 07:53:43 +00:00
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class File;
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2003-06-21 19:52:12 +00:00
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class SoundMixer;
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2002-09-02 07:53:43 +00:00
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2003-06-15 01:56:47 +00:00
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class Channel {
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2003-06-21 19:52:12 +00:00
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protected:
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SoundMixer *_mixer;
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2003-06-15 01:56:47 +00:00
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public:
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bool _toBeDestroyed;
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int _id;
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2003-06-21 19:52:12 +00:00
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Channel() : _mixer(0), _toBeDestroyed(false), _id(-1) {}
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2003-06-15 01:56:47 +00:00
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virtual void mix(int16 *data, uint len) = 0;
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void destroy() {
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_toBeDestroyed = true;
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}
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virtual void realDestroy() = 0;
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virtual bool soundFinished();
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};
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2002-04-17 20:23:45 +00:00
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2003-06-15 01:56:47 +00:00
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class SoundMixer {
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public:
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typedef void PremixProc (void *param, int16 *data, uint len);
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2002-04-14 18:13:08 +00:00
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2003-06-15 01:56:47 +00:00
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enum {
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NUM_CHANNELS = 16
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2002-10-27 01:12:10 +00:00
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};
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2003-06-15 01:56:47 +00:00
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private:
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2003-03-06 18:30:44 +00:00
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static void onGenerateSamples(void *s, byte *samples, int len);
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2002-04-14 18:13:08 +00:00
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2003-03-06 18:30:44 +00:00
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OSystem *_syst;
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void *_mutex;
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2002-07-07 18:04:03 +00:00
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2003-06-15 01:56:47 +00:00
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void *_premixParam;
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PremixProc *_premixProc;
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PlayingSoundHandle *_handles[NUM_CHANNELS];
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public:
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2002-08-24 15:31:37 +00:00
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uint _outputRate;
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2002-04-14 18:13:08 +00:00
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2003-03-06 18:30:44 +00:00
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int16 *_volumeTable;
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2002-08-24 15:31:37 +00:00
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int _musicVolume;
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2002-04-14 18:13:08 +00:00
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2002-05-01 22:22:22 +00:00
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bool _paused;
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2003-03-06 18:30:44 +00:00
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Channel *_channels[NUM_CHANNELS];
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2002-06-03 21:20:11 +00:00
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2002-10-15 21:55:04 +00:00
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int _beginSlots;
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2003-06-15 01:56:47 +00:00
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public:
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2002-08-18 21:42:22 +00:00
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SoundMixer();
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~SoundMixer();
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2003-03-06 18:30:44 +00:00
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int insertAt(PlayingSoundHandle *handle, int index, Channel *chan);
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void unInsert(Channel *chan);
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2002-10-15 21:55:04 +00:00
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void beginSlots(int index);
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2002-04-14 18:13:08 +00:00
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2002-12-25 00:36:04 +00:00
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// start playing a raw sound
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2002-04-14 18:13:08 +00:00
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enum {
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2002-12-25 00:36:04 +00:00
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// Do *NOT* change any of these flags without looking at the code in mixer.cpp
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2003-03-18 21:46:44 +00:00
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FLAG_UNSIGNED = 1 << 0, // unsigned samples
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FLAG_STEREO = 1 << 1, // sound is in stereo
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FLAG_16BITS = 1 << 2, // sound is 16 bits wide
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FLAG_AUTOFREE = 1 << 3, // sound buffer is freed automagically at the end of playing
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FLAG_REVERSE_STEREO = 1 << 4, // sound should be reverse stereo
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FLAG_LOOP = 1 << 5 // loop the audio
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};
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2003-03-18 21:46:44 +00:00
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int playRaw(PlayingSoundHandle *handle, void *sound, uint32 size, uint rate, byte flags, int id = -1);
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2003-06-21 21:17:08 +00:00
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int playStream(int index, void *sound, uint32 size, uint rate,
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2002-10-15 21:55:04 +00:00
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byte flags, int32 timeout = 3, int32 buffer_size = 2000000);
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2002-10-27 01:12:10 +00:00
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#ifdef USE_MAD
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2003-03-06 18:30:44 +00:00
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int playMP3(PlayingSoundHandle *handle, void *sound, uint32 size, byte flags);
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int playMP3CDTrack(PlayingSoundHandle *handle, File *file, mad_timer_t duration);
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2002-04-16 18:33:04 +00:00
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#endif
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2002-10-27 01:12:10 +00:00
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#ifdef USE_VORBIS
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2003-03-06 18:30:44 +00:00
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int playVorbis(PlayingSoundHandle *handle, OggVorbis_File *ov_file, int duration, bool is_cd_track);
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2002-10-27 01:12:10 +00:00
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#endif
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2002-04-14 18:13:08 +00:00
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2003-06-15 01:56:47 +00:00
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/** Premix procedure, useful when using fmopl adlib */
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2002-08-24 15:31:37 +00:00
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void setupPremix(void * param, PremixProc * proc);
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2002-04-14 18:13:08 +00:00
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2003-06-15 01:56:47 +00:00
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/** mix */
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2002-08-24 15:31:37 +00:00
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void mix(int16 * buf, uint len);
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2002-04-14 18:13:08 +00:00
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2003-06-15 01:56:47 +00:00
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/** stop all currently playing sounds */
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void stopAll();
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2002-04-14 18:13:08 +00:00
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2003-06-15 01:56:47 +00:00
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/** stop playing a specific sound */
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2002-04-27 07:42:14 +00:00
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void stop(int index);
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2002-04-14 18:13:08 +00:00
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2003-06-15 01:56:47 +00:00
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/** stop playing a specific sound */
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2003-03-18 21:46:44 +00:00
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void stopID(int id);
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2003-06-15 01:56:47 +00:00
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/** append to existing sound */
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2003-06-21 21:17:08 +00:00
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int append(int index, void * sound, uint32 size);
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2002-05-12 16:53:13 +00:00
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2003-06-15 01:56:47 +00:00
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/** is any channel active? */
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2002-08-24 15:31:37 +00:00
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bool hasActiveChannel();
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2002-04-14 18:13:08 +00:00
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2003-06-15 01:56:47 +00:00
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/** bind to the OSystem object => mixer will be
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2002-04-14 18:13:08 +00:00
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* invoked automatically when samples need
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* to be generated */
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2002-08-24 15:31:37 +00:00
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bool bindToSystem(OSystem *syst);
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2002-04-14 18:13:08 +00:00
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2003-06-15 01:56:47 +00:00
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/** set the volume, 0-256 */
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2002-08-24 15:31:37 +00:00
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void setVolume(int volume);
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void setMusicVolume(int volume);
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2002-04-14 18:13:08 +00:00
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2003-06-15 01:56:47 +00:00
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/** pause - unpause */
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2002-05-01 22:22:22 +00:00
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void pause(bool paused);
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2002-04-14 18:13:08 +00:00
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};
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2002-08-18 16:10:38 +00:00
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#endif
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