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Code Issues Releases Wiki Activity

Add a method to stream a sound in 3D

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This commit is contained in:
Chris Robinson 2012-03-19 07:28:03 -07:00
parent ae8218bf03
commit 4f69972a9c
3 changed files with 48 additions and 0 deletions
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44
apps/openmw/mwsound/openal_output.cpp
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@ -583,6 +583,50 @@ Sound* OpenAL_Output::streamSound(const std::string &fname, float volume, float
return sound.release();
}
Sound* OpenAL_Output::streamSound3D(const std::string &fname, const float *pos, float volume, float pitch,
float min, float max)
{
throwALerror();
std::auto_ptr<OpenAL_SoundStream> sound;
ALuint src;
if(mFreeSources.empty())
fail("No free sources");
src = mFreeSources.back();
mFreeSources.pop_back();
try
{
DecoderPtr decoder = mManager.getDecoder();
decoder->open(fname);
sound.reset(new OpenAL_SoundStream(*this, src, decoder));
}
catch(std::exception &e)
{
mFreeSources.push_back(src);
throw;
}
alSource3f(src, AL_POSITION, pos[0], pos[2], -pos[1]);
alSource3f(src, AL_DIRECTION, 0.0f, 0.0f, 0.0f);
alSource3f(src, AL_VELOCITY, 0.0f, 0.0f, 0.0f);
alSourcef(src, AL_REFERENCE_DISTANCE, min);
alSourcef(src, AL_MAX_DISTANCE, max);
alSourcef(src, AL_ROLLOFF_FACTOR, 1.0f);
alSourcef(src, AL_GAIN, volume);
alSourcef(src, AL_PITCH, pitch);
alSourcei(src, AL_SOURCE_RELATIVE, AL_FALSE);
alSourcei(src, AL_LOOPING, AL_FALSE);
throwALerror();
sound->play();
return sound.release();
}
void OpenAL_Output::updateListener(const float *pos, const float *atdir, const float *updir)
{

2
apps/openmw/mwsound/openal_output.hpp
View file

@ -30,6 +30,8 @@ namespace MWSound
float min, float max, bool loop);
virtual Sound *streamSound(const std::string &fname, float volume, float pitch);
virtual Sound *streamSound3D(const std::string &fname, const float *pos, float volume, float pitch,
float min, float max);
virtual void updateListener(const float *pos, const float *atdir, const float *updir);

2
apps/openmw/mwsound/sound_output.hpp
View file

@ -23,6 +23,8 @@ namespace MWSound
virtual Sound *playSound3D(const std::string &fname, const float *pos, float volume, float pitch,
float min, float max, bool loop) = 0;
virtual Sound *streamSound(const std::string &fname, float volume, float pitch) = 0;
virtual Sound *streamSound3D(const std::string &fname, const float *pos, float volume, float pitch,
float min, float max) = 0;
virtual void updateListener(const float *pos, const float *atdir, const float *updir) = 0;