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 | |
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18 | using namespace std; |
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19 | |
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20 | SoundControl* SoundControl::sound = SoundControl::getInstance(); |
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21 | SoundControl* SoundControl::singletonRef = NULL; |
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22 | |
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23 | |
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24 | /** |
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25 | \brief standard constructor |
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26 | This constructor builds a SoundControl Object and initialises it . |
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27 | All sound output is handled by this singleton object. |
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28 | */ |
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29 | SoundControl::SoundControl() { |
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30 | if(SDL_Init(SDL_INIT_AUDIO)<0) { |
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31 | printf("SDL_Init: INIT_AUDIO error.\n"); |
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32 | } |
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33 | if(Mix_OpenAudio(audio_rate, audio_format, audio_channels, audio_buffers)) { |
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34 | printf("Mix_OpenAudio: Failed to open audio!\n"); |
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35 | } |
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36 | init(); |
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37 | } |
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38 | |
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39 | /** |
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40 | \brief Default destructor |
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41 | */ |
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42 | SoundControl::~SoundControl() |
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43 | { |
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44 | singletonRef = NULL; |
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45 | } |
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46 | |
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47 | /** |
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48 | \brief Returns a reference to the SoundControl singleton |
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49 | */ |
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50 | SoundControl* SoundControl::getInstance() { |
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51 | if (SoundControl::singletonRef) |
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52 | return singletonRef; |
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53 | else |
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54 | return singletonRef = new SoundControl; |
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55 | } |
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56 | |
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57 | /** |
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58 | \brief Is called by SoundControl object to initiate all values and to output some text |
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59 | */ |
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60 | void SoundControl::init(void) |
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61 | { |
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62 | this->sfx_channel1 = -1; |
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63 | this->sfx_channel2 = -1; |
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64 | this->finished = 0; |
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65 | this->volume = SDL_MIX_MAXVOLUME; |
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66 | this->track_number = 1; |
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67 | this->music = NULL; |
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68 | this->audio_rate = 44100; |
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69 | this->audio_channels = MIX_DEFAULT_CHANNELS; |
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70 | this->audio_buffers = 16384; |
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71 | this->bits = 0; |
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72 | this->audio_format = MIX_DEFAULT_FORMAT; |
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73 | |
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74 | |
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75 | Mix_QuerySpec(&audio_rate, &audio_format, &audio_channels); |
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76 | bits=audio_format&0xFF; |
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77 | 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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78 | Mix_VolumeMusic(volume); |
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79 | } |
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80 | |
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81 | /** |
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82 | \brief Sets the number of output Channels |
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83 | */ |
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84 | void SoundControl::setNumberOfChannels(int number_of_channels) { |
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85 | Mix_AllocateChannels(number_of_channels); |
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86 | } |
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87 | |
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88 | /** |
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89 | \brief Static function to play a .xm file |
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90 | \param filename: self-explanatory |
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91 | */ |
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92 | void SoundControl::playMod(char* fileName) { |
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93 | Mix_Chunk* chunk = Mix_LoadWAV(fileName); |
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94 | if(Mix_PlayChannel(-1, chunk, 0) == -1) { |
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95 | printf("Mix_PlayChannel: %s\n", Mix_GetError()); |
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96 | } |
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97 | } |
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98 | |
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99 | /** |
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100 | \brief Static function to play a .wav file |
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101 | \param filename: self-explanatory |
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102 | */ |
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103 | void SoundControl::playWav(char* fileName) { |
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104 | Mix_Chunk* chunk = Mix_LoadWAV(fileName); |
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105 | if(Mix_PlayChannel(-1, chunk, 0) == -1) { |
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106 | printf("Mix_PlayChannel: %s\n", Mix_GetError()); |
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107 | } |
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108 | } |
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109 | |
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110 | /** |
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111 | \brief Static function to play an .ogg file |
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112 | \param filename: self-explanatory |
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113 | */ |
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114 | void SoundControl::playOgg(char* fileName) { |
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115 | Mix_Music* music = NULL; |
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116 | music = Mix_LoadMUS(fileName); |
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117 | if(Mix_PlayMusic(music, 1) == -1) { |
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118 | printf("Mix_PlayMusic: %s\n",Mix_GetError()); |
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119 | } |
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120 | Mix_HookMusicFinished(musicDone); |
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121 | } |
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122 | |
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123 | /** |
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124 | \brief Heightens the overall volume of output |
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125 | */ |
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126 | void SoundControl::volumeUp() { |
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127 | volume = (volume + 1) << 1; |
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128 | if(volume > SDL_MIX_MAXVOLUME) |
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129 | volume = SDL_MIX_MAXVOLUME; |
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130 | Mix_VolumeMusic(volume); |
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131 | } |
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132 | |
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133 | |
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134 | /** |
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135 | \brief Lowers the overall volume of output |
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136 | */ |
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137 | void SoundControl::volumeDown() { |
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138 | volume >>= 1; |
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139 | Mix_VolumeMusic(volume); |
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140 | } |
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141 | |
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142 | /** |
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143 | \brief Rewinds music to the beginning |
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144 | */ |
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145 | void SoundControl::trackRewind() { |
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146 | Mix_RewindMusic(); |
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147 | } |
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148 | |
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149 | /** |
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150 | \brief Rewinds the music 5 seconds |
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151 | */ |
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152 | void SoundControl::forwardMusic() { |
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153 | Mix_SetMusicPosition(+5); |
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154 | } |
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155 | |
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156 | /** |
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157 | \brief Forwards the music 5 seconds |
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158 | */ |
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159 | void SoundControl::rewindMusic () { |
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160 | Mix_SetMusicPosition(-5); |
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161 | } |
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162 | |
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163 | /** |
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164 | \brief Pauses music output |
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165 | */ |
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166 | void SoundControl::pauseMusic() { |
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167 | Mix_PauseMusic(); |
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168 | } |
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169 | |
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170 | /** |
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171 | \brief Pauses music output |
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172 | */ |
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173 | void SoundControl::resumeMusic() { |
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174 | Mix_ResumeMusic(); |
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175 | } |
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176 | |
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177 | /** |
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178 | \brief Fades in music |
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179 | */ |
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180 | void fadeInMusic(int time) { |
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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 Fades out music |
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186 | */ |
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187 | void SoundControl::fadeOutMusic(int time) { |
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188 | |
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189 | } |
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190 | |
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191 | /** |
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192 | \brief Hooked by playOgg at end of .ogg playback |
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193 | */ |
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194 | void SoundControl::musicDone() |
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195 | { |
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196 | Mix_Music* music = SoundControl::getInstance()->music; |
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197 | Mix_HaltMusic(); |
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198 | Mix_FreeMusic(music); |
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199 | music = NULL; |
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200 | } |
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201 | |
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