[4597] | 1 | /* |
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[4504] | 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: Benjamin Grauer |
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| 13 | co-programmer: ... |
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| 14 | |
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| 15 | code has been taken from http://www.devmaster.net/articles.php?catID=6 |
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| 16 | The code has been applied to our needs, and many things have been changed. |
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| 17 | */ |
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| 18 | |
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| 19 | //#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_WORLD_ENTITY |
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| 20 | |
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| 21 | #include "sound_engine.h" |
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| 22 | |
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| 23 | //#include <AL/alc.h> // maybe later |
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| 24 | |
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| 25 | #include "p_node.h" |
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| 26 | #include "list.h" |
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| 27 | #include "resource_manager.h" |
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| 28 | #include "debug.h" |
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| 29 | |
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| 30 | using namespace std; |
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| 31 | |
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| 32 | |
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| 33 | ////////////////// |
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| 34 | /* SOUND-BUFFER */ |
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| 35 | ////////////////// |
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| 36 | /** |
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[4836] | 37 | * Creates a Soundbuffer out of an inputfile |
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| 38 | * @param fileName The name of the File |
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[4504] | 39 | */ |
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| 40 | SoundBuffer::SoundBuffer(const char* fileName) |
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| 41 | { |
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[4597] | 42 | this->setClassID(CL_SOUND_BUFFER, "SoundBuffer"); |
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| 43 | this->setName(fileName); |
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| 44 | |
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[4504] | 45 | SoundEngine::getInstance()->addBuffer(this); |
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| 46 | |
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| 47 | ALenum format; |
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| 48 | ALvoid* data; |
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| 49 | ALsizei freq; |
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[4597] | 50 | |
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[4504] | 51 | ALenum result; |
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| 52 | |
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| 53 | // generate a Buffer |
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| 54 | alGenBuffers(1, &this->bufferID); |
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| 55 | if ((result = alGetError()) != AL_NO_ERROR) |
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| 56 | SoundEngine::PrintALErrorString(result); |
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| 57 | |
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| 58 | // read in the wav data |
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[4601] | 59 | /* according to http://www.edenwaith.com/products/pige/tutorials/openal.php the alutLoadWAVFile differs from platform to platform*/ |
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[4605] | 60 | #ifdef __APPLE__ |
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| 61 | alutLoadWAVFile(fileName, &format, &data, &this->size, &freq); |
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[4601] | 62 | #elifdef __WIN32__ |
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| 63 | alutLoadWAVFile(fileName, &format, &data, &size, &freq, &this->loop); |
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[4605] | 64 | #else |
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| 65 | alutLoadWAVFile((ALbyte*)fileName, &format, &data, &this->size, &freq, &this->loop); |
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[4601] | 66 | #endif |
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[4504] | 67 | if ((result = alGetError()) != AL_NO_ERROR) |
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| 68 | SoundEngine::PrintALErrorString(result); |
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[4597] | 69 | |
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[4504] | 70 | // send the loaded wav data to the buffer |
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| 71 | alBufferData(this->bufferID, format, data, this->size, freq); |
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| 72 | if ((result = alGetError()) != AL_NO_ERROR) |
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| 73 | SoundEngine::PrintALErrorString(result); |
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| 74 | |
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| 75 | // remove the wav data (redundant) |
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| 76 | alutUnloadWAV(format, data, this->size, freq); |
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| 77 | if ((result = alGetError()) != AL_NO_ERROR) |
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| 78 | SoundEngine::PrintALErrorString(result); |
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| 79 | } |
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| 80 | |
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[4746] | 81 | SoundBuffer::~SoundBuffer() |
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[4504] | 82 | { |
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| 83 | SoundEngine::getInstance()->removeBuffer(this); |
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| 84 | alDeleteBuffers(1, &this->bufferID); |
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| 85 | } |
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| 86 | |
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| 87 | ////////////////// |
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| 88 | /* SOUND-SOURCE */ |
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| 89 | ////////////////// |
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| 90 | /** |
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[4836] | 91 | * creates a SoundSource at position sourceNode with the SoundBuffer buffer |
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[4504] | 92 | */ |
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[4885] | 93 | SoundSource::SoundSource(const PNode* sourceNode, const SoundBuffer* buffer) |
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[4504] | 94 | { |
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[4597] | 95 | this->setClassID(CL_SOUND_SOURCE, "SoundSource"); |
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| 96 | |
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[4504] | 97 | ALenum result; |
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| 98 | |
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| 99 | // adding the Source to the SourcesList of the SoundEngine |
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| 100 | SoundEngine::getInstance()->addSource(this); |
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| 101 | |
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| 102 | this->buffer = buffer; |
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| 103 | this->sourceNode = sourceNode; |
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| 104 | |
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| 105 | alGenSources(1, &this->sourceID); |
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| 106 | if ((result = alGetError()) != AL_NO_ERROR) |
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| 107 | SoundEngine::PrintALErrorString(result); |
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[4885] | 108 | if (this->buffer != NULL) |
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| 109 | alSourcei (this->sourceID, AL_BUFFER, this->buffer->getID()); |
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[4504] | 110 | alSourcef (this->sourceID, AL_PITCH, 1.0 ); |
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| 111 | alSourcef (this->sourceID, AL_GAIN, 1.0 ); |
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| 112 | alSourcei (sourceID, AL_LOOPING, AL_FALSE ); |
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| 113 | } |
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| 114 | |
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| 115 | /** |
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[4836] | 116 | * deletes a SoundSource |
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[4504] | 117 | */ |
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[4746] | 118 | SoundSource::~SoundSource() |
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[4504] | 119 | { |
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| 120 | SoundEngine::getInstance()->removeSource(this); |
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| 121 | alDeleteSources(1, &this->sourceID); |
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| 122 | } |
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| 123 | |
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| 124 | /** |
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[4836] | 125 | * Plays back a SoundSource |
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[4504] | 126 | */ |
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| 127 | void SoundSource::play() |
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| 128 | { |
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| 129 | alSourcePlay(this->sourceID); |
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| 130 | } |
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| 131 | |
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| 132 | /** |
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[4885] | 133 | * Plays back buffer on this Source |
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| 134 | * @param buffer the buffer to play back on this Source |
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| 135 | */ |
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| 136 | void SoundSource::play(const SoundBuffer* buffer) |
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| 137 | { |
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| 138 | alSourcei (this->sourceID, AL_BUFFER, buffer->getID()); |
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| 139 | alSourcePlay(this->sourceID); |
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| 140 | |
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| 141 | if (unlikely(this->buffer != NULL)) |
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| 142 | alSourcei (this->sourceID, AL_BUFFER, this->buffer->getID()); |
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| 143 | } |
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| 144 | |
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| 145 | /** |
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[4836] | 146 | * Stops playback of a SoundSource |
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[4504] | 147 | */ |
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| 148 | void SoundSource::stop() |
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| 149 | { |
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| 150 | alSourceStop(this->sourceID); |
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| 151 | } |
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| 152 | |
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| 153 | /** |
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[4836] | 154 | * Pauses Playback of a SoundSource |
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[4504] | 155 | */ |
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| 156 | void SoundSource::pause() |
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| 157 | { |
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| 158 | alSourcePause(this->sourceID); |
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| 159 | } |
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| 160 | |
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| 161 | /** |
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[4836] | 162 | * Rewinds Playback of a SoundSource |
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[4504] | 163 | */ |
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| 164 | void SoundSource::rewind() |
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| 165 | { |
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| 166 | alSourceRewind(this->sourceID); |
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| 167 | } |
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| 168 | |
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| 169 | /** |
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[4836] | 170 | * sets the RolloffFactor of the Sound emitted from the SoundSource |
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| 171 | * @param rolloffFactor The Factor described |
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[4504] | 172 | |
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| 173 | this tells openAL how fast the Sounds decay outward from the Source |
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| 174 | */ |
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| 175 | void SoundSource::setRolloffFactor(ALfloat rolloffFactor) |
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| 176 | { |
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| 177 | alSourcef(this->sourceID, AL_ROLLOFF_FACTOR, rolloffFactor); |
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| 178 | } |
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| 179 | |
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| 180 | |
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| 181 | |
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| 182 | ////////////////// |
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| 183 | /* SOUND-ENGINE */ |
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| 184 | ////////////////// |
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| 185 | /** |
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[4836] | 186 | * standard constructor |
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[4504] | 187 | */ |
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[4597] | 188 | SoundEngine::SoundEngine () |
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[4504] | 189 | { |
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[4597] | 190 | this->setClassID(CL_SOUND_ENGINE, "SoundEngine"); |
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| 191 | this->setName("SoundEngine"); |
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| 192 | |
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[4504] | 193 | this->listener = NULL; |
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| 194 | this->bufferList = new tList<SoundBuffer>; |
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| 195 | this->sourceList = new tList<SoundSource>; |
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| 196 | } |
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| 197 | |
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| 198 | /** |
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[4836] | 199 | * the singleton reference to this class |
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[4504] | 200 | */ |
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| 201 | SoundEngine* SoundEngine::singletonRef = NULL; |
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| 202 | |
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| 203 | /** |
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[4836] | 204 | * standard deconstructor |
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[4504] | 205 | |
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| 206 | */ |
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[4597] | 207 | SoundEngine::~SoundEngine () |
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[4504] | 208 | { |
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| 209 | SoundEngine::singletonRef = NULL; |
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| 210 | |
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| 211 | // deleting all the SoundSources |
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| 212 | tIterator<SoundSource>* sourceIterator = this->sourceList->getIterator(); |
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| 213 | SoundSource* enumSource = sourceIterator->nextElement(); |
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| 214 | while (enumSource) |
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| 215 | { |
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| 216 | delete enumSource; |
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| 217 | enumSource = sourceIterator->nextElement(); |
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| 218 | } |
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| 219 | delete sourceIterator; |
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| 220 | |
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| 221 | // deleting all the SoundBuffers |
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| 222 | tIterator<SoundBuffer>* bufferIterator = this->bufferList->getIterator(); |
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| 223 | SoundBuffer* enumBuffer = bufferIterator->nextElement(); |
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| 224 | while (enumBuffer) |
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| 225 | { |
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| 226 | ResourceManager::getInstance()->unload(enumBuffer); |
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| 227 | enumBuffer = bufferIterator->nextElement(); |
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| 228 | } |
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| 229 | delete bufferIterator; |
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| 230 | |
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| 231 | // removing openAL from AudioResource |
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| 232 | alutExit(); |
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| 233 | } |
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| 234 | |
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| 235 | /** |
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[4836] | 236 | * creates a new SoundSource. |
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| 237 | * @param fileName The Name to load the SoundBuffer from |
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| 238 | * @param sourceNode The sourceNode to bind this SoundSource to. |
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| 239 | * @returns The newly created SoundSource |
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[4504] | 240 | |
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| 241 | acctualy this is nothing more than a wrapper around the ResourceManager. |
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| 242 | */ |
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| 243 | SoundSource* SoundEngine::createSource(const char* fileName, PNode* sourceNode) |
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| 244 | { |
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[4885] | 245 | return new SoundSource(sourceNode, (SoundBuffer*)ResourceManager::getInstance()->load(fileName, WAV, RP_LEVEL)); |
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[4504] | 246 | } |
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| 247 | |
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| 248 | |
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| 249 | /** |
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[4836] | 250 | * sets The listener (normaly the Camera) |
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[4504] | 251 | */ |
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| 252 | void SoundEngine::setListener(PNode* listener) |
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| 253 | { |
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| 254 | this->listener = listener; |
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| 255 | } |
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| 256 | |
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| 257 | /** |
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[4836] | 258 | * Sets the doppler values of openAL |
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| 259 | * @param dopplerFactor the extent of the doppler-effect |
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| 260 | * @param dopplerVelocity the Speed the sound travels |
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[4504] | 261 | */ |
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| 262 | void SoundEngine::setDopplerValues(ALfloat dopplerFactor, ALfloat dopplerVelocity) |
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| 263 | { |
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| 264 | alDopplerFactor(dopplerFactor); |
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| 265 | alDopplerVelocity(dopplerVelocity); |
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| 266 | } |
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| 267 | |
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| 268 | |
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| 269 | /** |
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[4836] | 270 | * adds a SoundBuffer to the bufferList of the SoundEngine |
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| 271 | * @param buffer The buffer to add to the bufferList |
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[4504] | 272 | */ |
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| 273 | void SoundEngine::addBuffer(SoundBuffer* buffer) |
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| 274 | { |
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| 275 | this->bufferList->add(buffer); |
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| 276 | } |
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| 277 | |
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| 278 | /** |
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[4836] | 279 | * removes a SoundBuffer from the bufferList of the SoundEngine |
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| 280 | * @param buffer The buffer to delete from the SoundEngine |
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[4504] | 281 | */ |
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| 282 | void SoundEngine::removeBuffer(SoundBuffer* buffer) |
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| 283 | { |
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| 284 | // look if there are any sources that have the buffer still loaded |
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| 285 | tIterator<SoundSource>* sourceIterator = this->sourceList->getIterator(); |
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| 286 | SoundSource* enumSource = sourceIterator->nextElement(); |
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| 287 | while (enumSource) |
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| 288 | { |
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| 289 | if (buffer == enumSource->getBuffer()) |
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[4597] | 290 | delete enumSource; |
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[4504] | 291 | enumSource = sourceIterator->nextElement(); |
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| 292 | } |
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| 293 | delete sourceIterator; |
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| 294 | |
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| 295 | // remove the Buffer |
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| 296 | this->bufferList->remove(buffer); |
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| 297 | } |
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| 298 | |
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| 299 | /** |
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[4836] | 300 | * adds a SoundSource to the sourceList of the SoundEngine |
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| 301 | * @param source The source to add to the sourceList |
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[4504] | 302 | */ |
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| 303 | void SoundEngine::addSource(SoundSource* source) |
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| 304 | { |
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| 305 | this->sourceList->add(source); |
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| 306 | } |
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| 307 | |
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| 308 | /** |
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[4836] | 309 | * removes a SoundSource from the sourceList of the SoundEngine |
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| 310 | * @param source The source to delete from the SoundEngine |
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[4504] | 311 | */ |
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| 312 | void SoundEngine::removeSource(SoundSource* source) |
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| 313 | { |
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| 314 | this->sourceList->remove(source); |
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| 315 | } |
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| 316 | |
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| 317 | |
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| 318 | /** |
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[4836] | 319 | * updates all The positions, Directions and Velocities of all Sounds |
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[4504] | 320 | */ |
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[4746] | 321 | void SoundEngine::update() |
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[4504] | 322 | { |
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| 323 | |
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| 324 | // updating the Listeners Position |
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| 325 | if (likely(this->listener != NULL)) |
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| 326 | { |
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| 327 | alListener3f(AL_POSITION, |
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[4597] | 328 | this->listener->getAbsCoor().x, |
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| 329 | this->listener->getAbsCoor().y, |
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| 330 | this->listener->getAbsCoor().z); |
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[4504] | 331 | alListener3f(AL_VELOCITY, |
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[4597] | 332 | this->listener->getVelocity().x, |
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| 333 | this->listener->getVelocity().y, |
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| 334 | this->listener->getVelocity().z); |
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[4504] | 335 | Vector absDirV = this->listener->getAbsDirV(); |
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| 336 | ALfloat orientation [6] = {1,0,0, absDirV.x, absDirV.y, absDirV.z}; |
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| 337 | alListenerfv(AL_ORIENTATION, orientation); |
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| 338 | } |
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| 339 | else |
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| 340 | PRINTF(2)("no listener defined\n"); |
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| 341 | |
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| 342 | // updating all the Sources positions |
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| 343 | tIterator<SoundSource>* iterator = this->sourceList->getIterator(); |
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| 344 | SoundSource* enumSource = iterator->nextElement(); |
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| 345 | while (enumSource) |
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| 346 | { |
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| 347 | if (likely(enumSource->getNode()!=NULL)) |
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| 348 | { |
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[4597] | 349 | alSource3f(enumSource->getID(), AL_POSITION, |
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| 350 | enumSource->getNode()->getAbsCoor().x, |
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| 351 | enumSource->getNode()->getAbsCoor().y, |
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| 352 | enumSource->getNode()->getAbsCoor().z); |
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| 353 | alSource3f(enumSource->getID(), AL_VELOCITY, |
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| 354 | enumSource->getNode()->getVelocity().x, |
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| 355 | enumSource->getNode()->getVelocity().y, |
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| 356 | enumSource->getNode()->getVelocity().z); |
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[4504] | 357 | } |
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| 358 | enumSource = iterator->nextElement(); |
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| 359 | } |
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| 360 | delete iterator; |
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| 361 | } |
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| 362 | |
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| 363 | /** |
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[4836] | 364 | * Removes all the Buffers that are not anymore needed by any Sources |
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[4504] | 365 | */ |
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[4746] | 366 | void SoundEngine::flushUnusedBuffers() |
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[4504] | 367 | { |
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| 368 | tIterator<SoundBuffer>* bufferIterator = this->bufferList->getIterator(); |
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| 369 | SoundBuffer* enumBuffer = bufferIterator->nextElement(); |
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| 370 | while (enumBuffer) |
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| 371 | { |
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| 372 | tIterator<SoundSource>* sourceIterator = this->sourceList->getIterator(); |
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| 373 | SoundSource* enumSource = sourceIterator->nextElement(); |
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| 374 | while (enumSource) |
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[4597] | 375 | { |
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| 376 | if (enumBuffer == enumSource->getBuffer()) |
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| 377 | break; |
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| 378 | enumSource = sourceIterator->nextElement(); |
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| 379 | } |
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[4504] | 380 | delete sourceIterator; |
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| 381 | if (enumSource == NULL) |
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[4597] | 382 | ResourceManager::getInstance()->unload(enumBuffer); |
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[4504] | 383 | enumBuffer = bufferIterator->nextElement(); |
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| 384 | } |
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| 385 | delete bufferIterator; |
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| 386 | } |
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| 387 | |
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| 388 | /** |
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[4836] | 389 | * SourceEngine::flushAllBuffers |
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[4504] | 390 | */ |
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[4746] | 391 | void SoundEngine::flushAllBuffers() |
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[4504] | 392 | { |
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[4830] | 393 | tIterator<SoundBuffer>* bufferIterator = this->bufferList->getIterator(); |
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[4504] | 394 | SoundBuffer* enumBuffer = bufferIterator->nextElement(); |
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| 395 | while (enumBuffer) |
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| 396 | { |
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| 397 | ResourceManager::getInstance()->unload(enumBuffer, RP_LEVEL); |
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| 398 | enumBuffer = bufferIterator->nextElement(); |
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| 399 | } |
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| 400 | delete bufferIterator; |
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| 401 | } |
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| 402 | |
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| 403 | /** |
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[4836] | 404 | * SourceEngine::flushAllBuffers |
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[4830] | 405 | */ |
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| 406 | void SoundEngine::flushAllSources() |
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| 407 | { |
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| 408 | tIterator<SoundSource>* Iterator = this->sourceList->getIterator(); |
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| 409 | SoundSource* enumSource = Iterator->nextElement(); |
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| 410 | while (enumSource) |
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| 411 | { |
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| 412 | delete enumSource; |
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| 413 | enumSource = Iterator->nextElement(); |
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| 414 | } |
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| 415 | delete Iterator; |
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| 416 | } |
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| 417 | |
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| 418 | |
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| 419 | /** |
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[4836] | 420 | * initializes Audio in general |
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[4504] | 421 | */ |
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[4746] | 422 | bool SoundEngine::initAudio() |
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[4504] | 423 | { |
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| 424 | ALenum result; |
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| 425 | |
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| 426 | PRINTF(3)("Initialisazing openAL sound library\n"); |
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| 427 | |
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| 428 | alutInit(NULL, 0); |
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| 429 | if ((result = alGetError()) != AL_NO_ERROR) |
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| 430 | SoundEngine::PrintALErrorString(result); |
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| 431 | |
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| 432 | this->setDopplerValues(SOUND_DOPPLER_FACTOR, SOUND_DOPPLER_VELOCITY); |
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| 433 | } |
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| 434 | |
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| 435 | /** |
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[4836] | 436 | * Transforms AL-errors into something readable |
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| 437 | * @param err The error found |
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[4504] | 438 | */ |
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| 439 | void SoundEngine::PrintALErrorString(ALenum err) |
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| 440 | { |
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| 441 | switch(err) |
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| 442 | { |
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| 443 | case AL_NO_ERROR: |
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| 444 | PRINTF(4)("AL_NO_ERROR\n"); |
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| 445 | break; |
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[4597] | 446 | |
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[4504] | 447 | case AL_INVALID_NAME: |
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| 448 | PRINTF(2)("AL_INVALID_NAME\n"); |
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| 449 | break; |
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| 450 | |
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| 451 | case AL_INVALID_ENUM: |
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| 452 | PRINTF(2)("AL_INVALID_ENUM\n"); |
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| 453 | break; |
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| 454 | |
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| 455 | case AL_INVALID_VALUE: |
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| 456 | PRINTF(2)("AL_INVALID_VALUE\n"); |
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| 457 | break; |
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| 458 | |
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| 459 | case AL_INVALID_OPERATION: |
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| 460 | PRINTF(2)("AL_INVALID_OPERATION\n"); |
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| 461 | break; |
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| 462 | |
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| 463 | case AL_OUT_OF_MEMORY: |
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| 464 | PRINTF(2)("AL_OUT_OF_MEMORY\n"); |
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| 465 | break; |
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| 466 | }; |
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| 467 | } |
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| 468 | |
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[4959] | 469 | void SoundEngine::listDevices() |
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| 470 | { |
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| 471 | |
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| 472 | printf("%s\n",(const char*)alcGetString(NULL, ALC_DEVICE_SPECIFIER)); |
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| 473 | } |
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| 474 | |
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[4504] | 475 | /* |
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| 476 | void SoundEngine::PrintALCErrorString(ALenum err) |
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| 477 | { |
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| 478 | switch(err) |
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| 479 | { |
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| 480 | case ALC_NO_ERROR: |
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| 481 | PRINTF(4)("AL_NO_ERROR\n"); |
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| 482 | break; |
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| 483 | |
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| 484 | case ALC_INVALID_DEVICE: |
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| 485 | PRINTF(2)("ALC_INVALID_DEVICE\n"); |
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| 486 | break; |
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| 487 | |
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| 488 | case ALC_INVALID_CONTEXT: |
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| 489 | PRINTF(2)("ALC_INVALID_CONTEXT\n"); |
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| 490 | break; |
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| 491 | |
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| 492 | case ALC_INVALID_ENUM: |
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| 493 | PRINTF(2)("ALC_INVALID_ENUM\n"); |
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| 494 | break; |
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| 495 | |
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| 496 | case ALC_INVALID_VALUE: |
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| 497 | PRINTF(2)("ALC_INVALID_VALUE\n"); |
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| 498 | break; |
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| 499 | |
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| 500 | case ALC_OUT_OF_MEMORY: |
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| 501 | PRINTF(2)("ALC_OUT_OF_MEMORY\n"); |
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| 502 | break; |
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| 503 | }; |
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| 504 | } |
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| 505 | */ |
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