Handle<Value> ALUTLoadMemoryFromFileCallback(const Arguments& args) {
//if less that nbr of formal parameters then do nothing
if (args.Length() < 4)
return v8::Undefined();
//get arguments
String::Utf8Value value0(args[0]);
char* arg0 = *value0;
Handle<Array> arg1 = Array::Cast(args[1]);
Handle<Array> arg2 = Array::Cast(args[2]);
Handle<Array> arg3 = Array::Cast(args[3]);
//make call
alutLoadMemoryFromFile((const char*)arg0, (ALenum*)arg1, (ALsizei*)arg2, (ALfloat*)arg3);
return v8::Undefined();
}
Sound::Sound()
{
// Init openAL
alutInit(0, NULL);
// Clear Error Code (so we can catch any new errors)
if (alGetError() != AL_NO_ERROR) std::cerr << "Error in Sound class!\n";
alGenBuffers(NUM_SOUNDS, buffers_);
alGenSources(NUM_SOUNDS, source_);
if (alGetError() != AL_NO_ERROR) std::cerr << "Error in Sound class!\n";
std::cout << "Loading sound files";
float zeros[3] = {0.0f, 0.0f, 0.0f};
for (unsigned int i = 0; i < NUM_SOUNDS; ++i) {
ALenum format;
ALsizei size;
ALfloat freq;
ALvoid* data = alutLoadMemoryFromFile(
SoundFiles[i].c_str(), &format, &size, &freq);
alBufferData(buffers_[i],format,data,size,freq);
//free(data);
if (alGetError() != AL_NO_ERROR) std::cerr << "Error in Sound class!\n";
alSourcei(source_[i], AL_BUFFER, buffers_[i]);
alSourcefv (source_[i], AL_VELOCITY, zeros);
alSourcefv (source_[i], AL_DIRECTION, zeros);
std::cout << "..";
}
std::cout << "done." << std::endl;
alListenerfv(AL_POSITION,zeros);
alListenerfv(AL_VELOCITY,zeros);
float orientation[6] = {
1.0f, 0.0f, 1.0f,
0.0f, 1.0f, 0.0f
};
alListenerfv(AL_ORIENTATION,orientation);
}
//based on http://ffainelli.github.io/openal-example/
Sound::Sound(std::string path)
{
int LOAD_OK = 1;
ALenum format;
ALsizei size;
ALvoid* data;
ALfloat freq;
if(alGetError() != AL_NO_ERROR)
LOAD_OK = 0;
audioBuffer = 0;
audioSource = 0;
if(LOAD_OK == 1)
{
alGenBuffers(1,&audioBuffer);
if (alGetError() != AL_NO_ERROR)
LOAD_OK = 0;
}
if(LOAD_OK == 1)
{
alGenSources(1,&audioSource);
if(alGetError() != AL_NO_ERROR)
LOAD_OK = 0;
}
if(LOAD_OK == 1)
{
data = alutLoadMemoryFromFile(path.c_str(),&format,&size,&freq);
LOAD_OK = (data!=NULL) ? 1:0;
}
if(LOAD_OK == 1)
{
alBufferData(audioBuffer, format, data, size, (ALsizei)freq);
if(alGetError() != AL_NO_ERROR)
LOAD_OK = 0;
}
if(LOAD_OK == 1)
{
// Unload the WAV file. It's not needed now.
alutUnloadWAV(format, data, size,(ALsizei)freq);
if(alGetError() != AL_NO_ERROR)
LOAD_OK = 0;
}
if(LOAD_OK == 1)
{
alSourcei(audioSource,AL_BUFFER,audioBuffer);
if (alGetError()!=AL_NO_ERROR)
LOAD_OK = 0;
}
if(LOAD_OK == 1)
{
// Position of the source of the sound.
ALfloat sourcePosition[] = { 0.0f, 0.0f, 0.0f };
// Velocity of the source of the sound.
ALfloat sourceVelocity[] = { 0.0f, 0.0f, 0.0f };
alSourcef(audioSource, AL_PITCH, 1.0f);
alSourcef(audioSource, AL_GAIN, 1.0f);
alSourcefv(audioSource, AL_POSITION, sourcePosition);
alSourcefv(audioSource, AL_VELOCITY, sourceVelocity);
if(alGetError() != AL_NO_ERROR)
LOAD_OK = 0;
}
if(!LOAD_OK)
{
printf("Failed to load sound: %s\n", path.c_str());
loaded = false;
} else {
loaded = true;
}
}
