4 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
6 // This program is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public License
8 // as published by the Free Software Foundation; either version 2
9 // of the License, or (at your option) any later version.
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 #ifndef __SOUND_MANAGER_H__
20 #define __SOUND_MANAGER_H__
30 #include <OpenAL/alc.h>
31 #include <OpenAL/al.h>
34 #include "math/vector.hpp"
38 class StreamSoundSource;
39 class OpenALSoundSource;
45 virtual ~SoundManager();
47 void enable_sound(bool sound_enabled);
49 * Creates a new sound source object which plays the specified soundfile.
50 * You are responsible for deleting the sound source later (this will stop the
52 * This function never throws exceptions, but might return a DummySoundSource
54 SoundSource* create_sound_source(const std::string& filename);
56 * Convenience function to simply play a sound at a given position.
58 void play(const std::string& name, const Vector& pos = Vector(-1, -1));
60 * Adds the source to the list of managed sources (= the source gets deleted
61 * when it finished playing)
63 void manage_source(SoundSource* source);
64 /// preloads a sound, so that you don't get a lag later when playing it
65 void preload(const std::string& name);
67 void set_listener_position(const Vector& position);
68 void set_listener_velocity(const Vector& velocity);
70 void enable_music(bool music_enabled);
71 void play_music(const std::string& filename, bool fade = false);
72 void stop_music(float fadetime = 0);
74 bool is_music_enabled() { return music_enabled; }
75 bool is_sound_enabled() { return sound_enabled; }
77 bool is_audio_enabled() {
78 return device != 0 && context != 0;
84 * Tell soundmanager to call update() for stream_sound_source.
86 void register_for_update( StreamSoundSource* sss );
88 * Unsubscribe from updates for stream_sound_source.
90 void remove_from_update( StreamSoundSource* sss );
93 friend class OpenALSoundSource;
94 friend class StreamSoundSource;
96 /** creates a new sound source, might throw exceptions, never returns NULL */
97 OpenALSoundSource* intern_create_sound_source(const std::string& filename);
98 static ALuint load_file_into_buffer(SoundFile* file);
99 static ALenum get_sample_format(SoundFile* file);
101 void print_openal_version();
102 void check_alc_error(const char* message);
103 static void check_al_error(const char* message);
109 typedef std::map<std::string, ALuint> SoundBuffers;
110 SoundBuffers buffers;
111 typedef std::vector<OpenALSoundSource*> SoundSources;
112 SoundSources sources;
114 typedef std::vector<StreamSoundSource*> StreamSoundSources;
115 StreamSoundSources update_list;
117 StreamSoundSource* music_source;
120 std::string current_music;
123 extern SoundManager* sound_manager;