1 // $Id: music_manager.cpp 827 2004-04-29 00:15:11Z grumbel $
2 //
3 // SuperTux
4 // Copyright (C) 2004 Ingo Ruhnke <grumbel@gmx.de>
5 //
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.
10 //
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.
15 //
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
20 #include <assert.h>
21 #include "music_manager.h"
22 #include "musicref.h"
23 #include "sound.h"
24 #include "setup.h"
25
MusicManager()26 MusicManager::MusicManager()
27 : current_music(0), music_enabled(true)
28 { }
29
~MusicManager()30 MusicManager::~MusicManager()
31 {
32 if(audio_device)
33 Mix_HaltMusic();
34 }
35
36 MusicRef
load_music(const std::string & file)37 MusicManager::load_music(const std::string& file)
38 {
39 if(!audio_device)
40 return MusicRef(0);
41
42 if(!exists_music(file))
43 st_abort("Couldn't load musicfile ", file.c_str());
44
45 std::map<std::string, MusicResource>::iterator i = musics.find(file);
46 assert(i != musics.end());
47 return MusicRef(& (i->second));
48 }
49
50 bool
exists_music(const std::string & file)51 MusicManager::exists_music(const std::string& file)
52 {
53 if(!audio_device)
54 return true;
55
56 // song already loaded?
57 std::map<std::string, MusicResource>::iterator i = musics.find(file);
58 if(i != musics.end()) {
59 return true;
60 }
61
62 Mix_Music* song = Mix_LoadMUS(file.c_str());
63 if(song == 0)
64 return false;
65
66 // insert into music list
67 std::pair<std::map<std::string, MusicResource>::iterator, bool> result =
68 musics.insert(
69 std::make_pair<std::string, MusicResource> (std::string(file), MusicResource()));
70 MusicResource& resource = result.first->second;
71 resource.manager = this;
72 resource.music = song;
73
74 return true;
75 }
76
77 void
free_music(MusicResource *)78 MusicManager::free_music(MusicResource* )
79 {
80 // TODO free music, currently we can't do this since SDL_mixer seems to have
81 // some bugs if you load/free alot of mod files.
82 }
83
84 void
play_music(const MusicRef & musicref,int loops)85 MusicManager::play_music(const MusicRef& musicref, int loops)
86 {
87 if(!audio_device)
88 return;
89
90 if(musicref.music == 0 || current_music == musicref.music)
91 return;
92
93 if(current_music)
94 current_music->refcount--;
95
96 current_music = musicref.music;
97 current_music->refcount++;
98
99 if(music_enabled)
100 Mix_PlayMusic(current_music->music, loops);
101 }
102
103 void
halt_music()104 MusicManager::halt_music()
105 {
106 if(!audio_device)
107 return;
108
109 Mix_HaltMusic();
110
111 if(current_music) {
112 current_music->refcount--;
113 if(current_music->refcount == 0)
114 free_music(current_music);
115 current_music = 0;
116 }
117 }
118
119 void
enable_music(bool enable)120 MusicManager::enable_music(bool enable)
121 {
122 if(!audio_device)
123 return;
124
125 if(enable == music_enabled)
126 return;
127
128 music_enabled = enable;
129 if(music_enabled == false) {
130 Mix_HaltMusic();
131 } else {
132 Mix_PlayMusic(current_music->music, -1);
133 }
134 }
135
~MusicResource()136 MusicManager::MusicResource::~MusicResource()
137 {
138 // buggy SDL_mixer :-/
139 // Mix_FreeMusic(music);
140 }
141
142