1 | /* |
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2 | orxonox - the future of 3D-vertical-scrollers |
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3 | |
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4 | Copyright (C) 2004 orx |
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5 | |
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6 | This program is free software; you can redistribute it and/or modify |
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7 | it under the terms of the GNU General Public License as published by |
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8 | the Free Software Foundation; either version 2, or (at your option) |
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9 | any later version. |
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10 | |
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11 | ### File Specific: |
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12 | main-programmer: Simon Hofmann |
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13 | co-programmer: |
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14 | */ |
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15 | |
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16 | #include "sound_control.h" |
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17 | #include <string.h> |
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18 | #include "SDL_mixer.h" |
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19 | |
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20 | using namespace std; |
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21 | |
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22 | // global variables |
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23 | |
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24 | SoundControl* SoundControl::instance = 0; // singleton reference |
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25 | int volume = SDL_MIX_MAXVOLUME; // volume |
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26 | int done = 0; // |
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27 | int track_number = 1; |
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28 | Mix_Music* music = NULL; |
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29 | |
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30 | /** |
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31 | \brief standard constructor |
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32 | |
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33 | This constructor builds a SoundControl Object, which waits for callers. |
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34 | All sound output is handled by this singleton object. |
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35 | */ |
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36 | SoundControl::SoundControl () { |
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37 | |
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38 | //setup parameters |
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39 | int audio_rate = MIX_DEFAULT_FREQUENCY, audio_channels = MIX_DEFAULT_CHANNELS, audio_buffers = 8192, bits = 0; |
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40 | Uint16 audio_format = MIX_DEFAULT_FORMAT; |
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41 | |
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42 | //initializing sound and calling Mix_OpenAudio |
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43 | if(SDL_Init(SDL_INIT_AUDIO)<0){ |
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44 | printf("SDL_Init: \n"); |
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45 | exit(1); |
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46 | } |
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47 | |
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48 | if(Mix_OpenAudio(audio_rate, audio_format, audio_channels, audio_buffers)){ |
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49 | printf("Mix_OpenAudio: \n"); |
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50 | exit(1); |
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51 | } |
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52 | |
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53 | initialise(); |
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54 | } |
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55 | |
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56 | |
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57 | /** |
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58 | \brief Destructor for the singleton instance |
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59 | */ |
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60 | SoundControl::~SoundControl () { |
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61 | delete instance; |
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62 | instance = 0; |
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63 | } |
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64 | |
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65 | /** |
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66 | \brief Returns a reference to the singleton |
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67 | */ |
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68 | SoundControl* SoundControl::getInstance() { |
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69 | if (instance == 0) { |
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70 | instance = new SoundControl; |
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71 | } |
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72 | return instance; |
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73 | } |
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74 | |
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75 | void SoundControl::deleteInstance() { |
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76 | ~SoundControl(); |
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77 | } |
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78 | |
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79 | /** |
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80 | \brief Is called by SoundControl object to initiate all values |
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81 | */ |
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82 | void SoundControl::initialise() { |
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83 | |
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84 | // Print some info |
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85 | Mix_QuerySpec(&audio_rate, &audio_format, &audio_channels); |
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86 | bits=audio_format&0xFF; |
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87 | printf("Opened audio at %d Hz %d bit %s, %d bytes audio buffer\n", audio_rate, bits, audio_channels > 1 ? "stereo" : "mono", audio_buffers ); |
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88 | Mix_VolumeMusic(volume); |
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89 | } |
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90 | |
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91 | |
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92 | /** |
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93 | \brief Sets the number of output Channels (should not be used) |
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94 | */ |
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95 | void SoundControl::setNumberOfChannels (int number_of_channels) { |
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96 | Mix_AllocateChannels(number_of_channels); |
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97 | } |
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98 | |
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99 | |
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100 | /** |
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101 | \brief May be called from any WorldEntity to play a .xm file |
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102 | \param filename: self-explanatory |
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103 | */ |
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104 | int SoundControl::playMod (char* fileName) { |
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105 | Mix_Chunk* chunk = NULL; |
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106 | chunk = Mix_LoadWAV(fileName); |
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107 | if(Mix_PlayChannel(-1, chunk, 0) == -1) { |
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108 | printf("Mix_PlayChannel: %s\n", Mix_GetError()); |
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109 | } |
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110 | } |
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111 | |
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112 | |
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113 | /** |
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114 | \brief May be called from any WorldEntity to play a .wav file |
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115 | \param filename: self-explanatory |
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116 | */ |
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117 | int SoundControl::playWav (char* fileName) { |
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118 | Mix_Chunk* chunk = NULL; |
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119 | chunk = Mix_LoadWAV(fileName); |
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120 | if(Mix_PlayChannel(-1, chunk, 0) == -1) { |
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121 | printf("Mix_PlayChannel: %s\n", Mix_GetError()); |
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122 | } |
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123 | } |
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124 | |
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125 | |
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126 | /** |
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127 | \brief May be called from any WorldEntity to play a .ogg file |
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128 | \param filename: self-explanatory |
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129 | */ |
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130 | int SoundControl::playOgg (char* fileName) { |
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131 | Mix_Music* music = NULL; |
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132 | music = Mix_LoadMUS(fileName); |
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133 | if(Mix_PlayMusic(music, 1) == -1){ |
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134 | printf("Mix_PlayMusic: %s\n",Mix_GetError()); |
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135 | } |
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136 | Mix_HookMusicFinished(musicDone); |
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137 | } |
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138 | |
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139 | |
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140 | /** |
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141 | \brief Heightens the overall volume of output |
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142 | */ |
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143 | void SoundControl::volumeUp () { |
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144 | volume = (volume + 1) << 1; |
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145 | if(volume > SDL_MIX_MAXVOLUME) |
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146 | volume = SDL_MIX_MAXVOLUME; |
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147 | Mix_VolumeMusic(volume); |
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148 | } |
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149 | |
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150 | |
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151 | /** |
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152 | \brief Lowers the overall volume of output |
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153 | */ |
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154 | void SoundControl::volumeDown () { |
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155 | volume >>= 1; |
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156 | Mix_VolumeMusic(volume); |
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157 | } |
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158 | |
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159 | |
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160 | /** |
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161 | \brief Rewinds music to the beginning |
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162 | */ |
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163 | void SoundControl::trackRewind () { |
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164 | Mix_RewindMusic(); |
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165 | } |
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166 | |
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167 | |
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168 | /** |
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169 | \brief Rewinds the music 5 seconds |
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170 | */ |
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171 | void SoundControl::forwardMusic () { |
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172 | Mix_SetMusicPosition(+5); |
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173 | } |
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174 | |
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175 | |
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176 | /** |
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177 | \brief Forwards the music 5 seconds |
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178 | */ |
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179 | void SoundControl::rewindMusic () { |
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180 | Mix_SetMusicPosition(-5); |
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181 | } |
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182 | |
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183 | |
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184 | /** |
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185 | \brief Pauses music output |
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186 | */ |
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187 | void SoundControl::pauseMusic () { |
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188 | Mix_PauseMusic() |
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189 | } |
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190 | |
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191 | |
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192 | /** |
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193 | \brief this function pauses music output |
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194 | */ |
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195 | void SoundControl::resumeMusic () { |
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196 | Mix_ResumeMusic() |
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197 | } |
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198 | |
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199 | /** |
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200 | \brief Selects the track of all orxonox tracks |
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201 | */ |
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202 | void SoundControl::trackSelect () { |
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203 | switch (track_number) { |
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204 | case 1: |
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205 | music = Mix_LoadMUS("luke_grey_orxonox1.ogg"); |
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206 | if(Mix_PlayMusic(music, 1) == -1){ |
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207 | printf("Mix_PlayMusic: %s\n",Mix_GetError()); |
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208 | } |
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209 | Mix_HookMusicFinished(musicDone); |
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210 | break; |
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211 | case 2: |
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212 | music = Mix_LoadMUS("luke_grey_orxonox2.ogg"); |
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213 | if(Mix_PlayMusic(music, 1) == -1){ |
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214 | printf("Mix_PlayMusic: %s\n",Mix_GetError()); |
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215 | } |
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216 | Mix_HookMusicFinished(musicDone); |
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217 | break; |
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218 | case 3: |
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219 | music = Mix_LoadMUS("luke_grey_orxonox3.ogg"); |
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220 | if(Mix_PlayMusic(music, 1) == -1){ |
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221 | printf("Mix_PlayMusic: %s\n",Mix_GetError()); |
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222 | } |
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223 | Mix_HookMusicFinished(musicDone); |
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224 | break; |
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225 | case 4: |
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226 | music = Mix_LoadMUS("luke_grey_and_aquarius_orxonox.ogg"); |
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227 | if(Mix_PlayMusic(music, 1) == -1){ |
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228 | printf("Mix_PlayMusic: %s\n",Mix_GetError()); |
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229 | } |
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230 | Mix_HookMusicFinished(musicDone); |
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231 | break; |
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232 | case 5: |
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233 | music = Mix_LoadMUS("nomenes_orxonox.ogg"); |
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234 | if(Mix_PlayMusic(music, 1) == -1){ |
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235 | printf("Mix_PlayMusic: %s\n",Mix_GetError()); |
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236 | } |
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237 | Mix_HookMusicFinished(musicDone); |
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238 | break; |
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239 | case 6: |
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240 | music = Mix_LoadMUS("nomenes_funkadudu.ogg"); |
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241 | if(Mix_PlayMusic(music, 1) == -1){ |
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242 | printf("Mix_PlayMusic: %s\n",Mix_GetError()); |
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243 | } |
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244 | Mix_HookMusicFinished(musicDone); |
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245 | break; |
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246 | } |
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247 | } |
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248 | |
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249 | |
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250 | /** |
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251 | \brief Hooked by playOgg at end of .ogg playback |
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252 | */ |
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253 | void SoundControl::musicDone () { |
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254 | track_number++; |
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255 | Mix_HaltMusic(); |
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256 | Mix_FreeMusic(music); |
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257 | music = NULL; |
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258 | } |
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