[339] | 1 | #include <iostream> |
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| 2 | #include <string> |
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| 3 | #include "AudioObject.h" |
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| 4 | |
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| 5 | namespace audio |
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| 6 | { |
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| 7 | AudioObject::AudioObject(std::string audioFile) |
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| 8 | { |
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| 9 | audioFile_ = audioFile; |
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| 10 | SourcePos[0]=0; |
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| 11 | SourcePos[1]=0; |
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| 12 | SourcePos[2]=0; |
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| 13 | |
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| 14 | SourceVel[0]=0; |
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| 15 | SourceVel[1]=0; |
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| 16 | SourceVel[2]=0; |
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| 17 | |
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| 18 | ListenerPos[0]=0; |
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| 19 | ListenerPos[1]=0; |
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| 20 | ListenerPos[2]=0; |
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| 21 | |
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| 22 | ListenerVel[0]=0; |
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| 23 | ListenerVel[1]=0; |
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| 24 | ListenerVel[2]=0; |
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| 25 | |
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| 26 | ListenerOri[0]=0; |
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| 27 | ListenerOri[1]=0; |
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| 28 | ListenerOri[2]=-1; |
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| 29 | ListenerOri[3]=0; |
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| 30 | ListenerOri[4]=1; |
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| 31 | ListenerOri[5]=0; |
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| 32 | |
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| 33 | |
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| 34 | // Initialize OpenAL and clear the error bit. |
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| 35 | |
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| 36 | alutInit(NULL, 0); |
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| 37 | alGetError(); |
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| 38 | |
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| 39 | // Load the wav data. |
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| 40 | |
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| 41 | if(LoadALData() == AL_FALSE) |
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| 42 | { |
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| 43 | printf("Error loading sound data."); |
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| 44 | |
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| 45 | } |
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| 46 | |
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| 47 | SetListenerValues(); |
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| 48 | std::cout << "Play sone ambient background sound"; |
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| 49 | } |
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| 50 | |
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| 51 | AudioObject::~AudioObject() |
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| 52 | { |
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| 53 | KillALData(); |
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| 54 | } |
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| 55 | |
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| 56 | ALboolean AudioObject::LoadALData() |
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| 57 | { |
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| 58 | ALenum format; |
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| 59 | ALsizei size; |
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| 60 | ALvoid* data; |
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| 61 | ALsizei freq; |
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| 62 | ALboolean loop; |
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| 63 | |
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| 64 | |
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| 65 | alGenBuffers(1, &Buffer); |
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| 66 | |
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| 67 | if(alGetError() != AL_NO_ERROR) |
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| 68 | return AL_FALSE; |
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| 69 | |
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| 70 | alutLoadWAVFile((ALbyte*)audioFile_.c_str(), &format, &data, &size, &freq, &loop); |
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| 71 | alBufferData(Buffer, format, data, size, freq); |
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| 72 | alutUnloadWAV(format, data, size, freq); |
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| 73 | |
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| 74 | alGenSources(1, &Source); |
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| 75 | |
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| 76 | if(alGetError() != AL_NO_ERROR) |
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| 77 | return AL_FALSE; |
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| 78 | |
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| 79 | alSourcei (Source, AL_BUFFER, Buffer ); |
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| 80 | alSourcef (Source, AL_PITCH, 1.0 ); |
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| 81 | alSourcef (Source, AL_GAIN, 1.0 ); |
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| 82 | alSourcefv(Source, AL_POSITION, SourcePos); |
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| 83 | alSourcefv(Source, AL_VELOCITY, SourceVel); |
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| 84 | alSourcei (Source, AL_LOOPING, loop ); |
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| 85 | |
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| 86 | if(alGetError() == AL_NO_ERROR) |
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| 87 | return AL_TRUE; |
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| 88 | |
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| 89 | |
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| 90 | return AL_FALSE; |
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| 91 | } |
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| 92 | |
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| 93 | void AudioObject::SetListenerValues() |
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| 94 | { |
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| 95 | alListenerfv(AL_POSITION, ListenerPos); |
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| 96 | alListenerfv(AL_VELOCITY, ListenerVel); |
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| 97 | alListenerfv(AL_ORIENTATION, ListenerOri); |
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| 98 | } |
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| 99 | |
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| 100 | void AudioObject::KillALData() |
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| 101 | { |
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| 102 | alDeleteBuffers(1, &Buffer); |
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| 103 | alDeleteSources(1, &Source); |
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| 104 | alutExit(); |
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| 105 | } |
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| 106 | |
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| 107 | void AudioObject::play() |
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| 108 | { |
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| 109 | alSourcePlay(Source); |
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| 110 | |
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| 111 | } |
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| 112 | } |
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| 113 | |
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