X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fsound%2Fsoundmgr_openal.cxx;h=ea5e44db0f4c69100b24ceb8a4a8ca9bb47f3f0a;hb=1fe9755d01b9b0c06e8cfd05272e17a3ce0f1bf3;hp=bfe0a2e7d91cde00807ca097fe33ea1a8a7641d0;hpb=84dc82506a2b57ab1871ba313072238bc38d47af;p=simgear.git diff --git a/simgear/sound/soundmgr_openal.cxx b/simgear/sound/soundmgr_openal.cxx index bfe0a2e7..ea5e44db 100644 --- a/simgear/sound/soundmgr_openal.cxx +++ b/simgear/sound/soundmgr_openal.cxx @@ -45,6 +45,7 @@ #include #include +extern bool isNaN(float *v); #define MAX_SOURCES 128 @@ -62,10 +63,13 @@ SGSoundMgr::SGSoundMgr() : _volume(0.0), _device(NULL), _context(NULL), - _position(SGVec3d::zeros()), + _absolute_pos(SGVec3d::zeros()), + _offset_pos(SGVec3d::zeros()), + _base_pos(SGVec3d::zeros()), + _geod_pos(SGGeod::fromCart(SGVec3d::zeros())), _velocity(SGVec3d::zeros()), _orientation(SGQuatd::zeros()), - _devname(NULL) + _bad_doppler(false) { #if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1 if (_alut_init == 0) { @@ -92,13 +96,16 @@ SGSoundMgr::~SGSoundMgr() { } // initialize the sound manager -void SGSoundMgr::init() { +void SGSoundMgr::init(const char *devname) { SG_LOG( SG_GENERAL, SG_INFO, "Initializing OpenAL sound manager" ); - ALCdevice *device = alcOpenDevice(_devname); - if ( testForError(device, "No default audio device available.") ) { - return; + ALCdevice *device = alcOpenDevice(devname); + if ( testForError(device, "Audio device not available, trying default") ) { + device = alcOpenDevice(NULL); + if (testForError(device, "Default Audio device not available.") ) { + return; + } } ALCcontext *context = alcCreateContext(device, NULL); @@ -130,11 +137,9 @@ void SGSoundMgr::init() { alDopplerFactor(1.0); alDopplerVelocity(340.3); // speed of sound in meters per second. - if ( alIsExtensionPresent((const ALchar*)"EXT_exponent_distance") ) { - alDistanceModel(AL_EXPONENT_DISTANCE); - } else { - alDistanceModel(AL_INVERSE_DISTANCE); - } + // gain = AL_REFERENCE_DISTANCE / (AL_REFERENCE_DISTANCE + + // AL_ROLLOFF_FACTOR * (distance - AL_REFERENCE_DISTANCE)); + alDistanceModel(AL_INVERSE_DISTANCE_CLAMPED); testForALError("listener initialization"); @@ -153,6 +158,15 @@ void SGSoundMgr::init() { else break; } + string vendor = alGetString(AL_VENDOR); + string renderer = alGetString(AL_RENDERER); + if ( vendor != "OpenAL Community" || + (renderer != "Software" && renderer != "OpenAL Sample Implementation") + ) + { + _bad_doppler = true; + } + if (_free_sources.size() == 0) { SG_LOG(SG_GENERAL, SG_ALERT, "Unable to grab any OpenAL sources!"); } @@ -172,24 +186,40 @@ void SGSoundMgr::activate() { // stop the sound manager void SGSoundMgr::stop() { + + // first stop all sample groups + sample_group_map_iterator sample_grp_current = _sample_groups.begin(); + sample_group_map_iterator sample_grp_end = _sample_groups.end(); + for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) { + SGSampleGroup *sgrp = sample_grp_current->second; + sgrp->stop(); + } + + // clear all OpenAL sources + for (unsigned int i=0; i<_free_sources.size(); i++) { + ALuint source = _free_sources[i]; + alDeleteSources( 1 , &source ); + } + _free_sources.clear(); + + // clear any OpenAL buffers before shutting down + buffer_map_iterator buffers_current = _buffers.begin(); + buffer_map_iterator buffers_end = _buffers.end(); + for ( ; buffers_current != buffers_end; ++buffers_current ) { + refUint ref = buffers_current->second; + ALuint buffer = ref.id; + alDeleteBuffers(1, &buffer); + } + _buffers.clear(); + if (_working) { _working = false; _active = false; - - // clear any OpenAL buffers before shutting down - buffer_map_iterator buffers_current = _buffers.begin(); - buffer_map_iterator buffers_end = _buffers.end(); - for ( ; buffers_current != buffers_end; ++buffers_current ) { - refUint ref = buffers_current->second; - ALuint buffer = ref.id; - alDeleteBuffers(1, &buffer); - } - _buffers.clear(); - _context = alcGetCurrentContext(); _device = alcGetContextsDevice(_context); alcDestroyContext(_context); alcCloseDevice(_device); + _context = NULL; } } @@ -199,7 +229,7 @@ void SGSoundMgr::suspend() { sample_group_map_iterator sample_grp_end = _sample_groups.end(); for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) { SGSampleGroup *sgrp = sample_grp_current->second; - sgrp->suspend(); + sgrp->stop(); } _active = false; } @@ -241,8 +271,14 @@ void SGSoundMgr::unbind () } // run the audio scheduler -void SGSoundMgr::update_late( double dt ) { +void SGSoundMgr::update( double dt ) { if (_active) { + alcSuspendContext(_context); + + if (_changed) { + update_pos_and_orientation(); + } + sample_group_map_iterator sample_grp_current = _sample_groups.begin(); sample_group_map_iterator sample_grp_end = _sample_groups.end(); for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) { @@ -251,21 +287,32 @@ void SGSoundMgr::update_late( double dt ) { } if (_changed) { - alListenerf( AL_GAIN, _volume ); #if 0 - alListenerfv( AL_ORIENTATION, _at_up_vec ); +if (isNaN(_at_up_vec)) printf("NaN in listener orientation\n"); +if (isNaN(toVec3f(_absolute_pos).data())) printf("NaN in listener position\n"); +if (isNaN(_velocity.data())) printf("NaN in listener velocity\n"); #endif -double *pos = _position.data(); -if (isnan(pos[0]) || isnan(pos[1]) || isnan(pos[2])) printf("NaN detected in listener position\n"); - alListenerfv( AL_POSITION, toVec3f(_position).data() ); + alListenerf( AL_GAIN, _volume ); + alListenerfv( AL_ORIENTATION, _at_up_vec ); + // alListenerfv( AL_POSITION, toVec3f(_absolute_pos).data() ); + + SGQuatd hlOr = SGQuatd::fromLonLat( _geod_pos ); + SGVec3d velocity = SGVec3d::zeros(); + if ( _velocity[0] || _velocity[1] || _velocity[2] ) { + velocity = hlOr.backTransform(_velocity*SG_FEET_TO_METER); + } + + if ( _bad_doppler ) { + velocity *= 100.0f; + } -double *vel = _velocity.data(); -if (isnan(vel[0]) || isnan(vel[1]) || isnan(vel[2])) printf("NaN detected in listener velocity\n"); - alListenerfv( AL_VELOCITY, toVec3f(_velocity).data() ); + alListenerfv( AL_VELOCITY, toVec3f(velocity).data() ); // alDopplerVelocity(340.3); // TODO: altitude dependent testForALError("update"); _changed = false; } + + alcProcessContext(_context); } } @@ -320,6 +367,7 @@ SGSampleGroup *SGSoundMgr::find( const string &refname, bool create ) { // sample group was not found. if (create) { SGSampleGroup* sgrp = new SGSampleGroup(this, refname); + add( sgrp, refname ); return sgrp; } else @@ -338,32 +386,6 @@ void SGSoundMgr::set_volume( float v ) _changed = true; } -/** - * set the orientation of the listener (in opengl coordinates) - * - * Description: ORIENTATION is a pair of 3-tuples representing the - * 'at' direction vector and 'up' direction of the Object in - * Cartesian space. AL expects two vectors that are orthogonal to - * each other. These vectors are not expected to be normalized. If - * one or more vectors have zero length, implementation behavior - * is undefined. If the two vectors are linearly dependent, - * behavior is undefined. - */ -void SGSoundMgr::set_orientation( SGQuatd ori ) -{ - _orientation = ori; - - SGVec3d sgv_up = ori.rotate(SGVec3d::e2()); - SGVec3d sgv_at = ori.rotate(SGVec3d::e3()); - _at_up_vec[0] = sgv_at[0]; - _at_up_vec[1] = sgv_at[1]; - _at_up_vec[2] = sgv_at[2]; - _at_up_vec[3] = sgv_up[0]; - _at_up_vec[4] = sgv_up[1]; - _at_up_vec[5] = sgv_up[2]; - _changed = true; -} - // Get an unused source id // // The Sound Manager should keep track of the sources in use, the distance @@ -415,6 +437,7 @@ unsigned int SGSoundMgr::request_buffer(SGSoundSample *sample) if ( !sample->is_valid_buffer() ) { // sample was not yet loaded or removed again string sample_name = sample->get_sample_name(); + void *sample_data = NULL; // see if the sample name is already cached buffer_map_iterator buffer_it = _buffers.find( sample_name ); @@ -427,32 +450,31 @@ unsigned int SGSoundMgr::request_buffer(SGSoundSample *sample) // sample name was not found in the buffer cache. if ( sample->is_file() ) { - size_t size; int freq, format; - void *data; + size_t size; + bool res; + + res = load(sample_name, &sample_data, &format, &size, &freq); + if (res == false) return buffer; - load(sample_name, &data, &format, &size, &freq); - sample->set_data( &data ); sample->set_frequency( freq ); sample->set_format( format ); sample->set_size( size ); } + else + sample_data = sample->get_data(); // create an OpenAL buffer handle alGenBuffers(1, &buffer); if ( !testForALError("generate buffer") ) { // Copy data to the internal OpenAL buffer - const ALvoid *data = sample->get_data(); ALenum format = sample->get_format(); ALsizei size = sample->get_size(); ALsizei freq = sample->get_frequency(); - alBufferData( buffer, format, data, size, freq ); + alBufferData( buffer, format, sample_data, size, freq ); - // If this sample was read from a file we have all the information - // needed to read it again. For data buffers provided by the - // program we don't; so don't delete it's data. - if ( sample->is_file() ) sample->free_data(); + if ( sample->is_file() ) free(sample_data); if ( !testForALError("buffer add data") ) { sample->set_buffer(buffer); @@ -486,6 +508,33 @@ void SGSoundMgr::release_buffer(SGSoundSample *sample) } } +void SGSoundMgr::update_pos_and_orientation() { + /** + * Description: ORIENTATION is a pair of 3-tuples representing the + * 'at' direction vector and 'up' direction of the Object in + * Cartesian space. AL expects two vectors that are orthogonal to + * each other. These vectors are not expected to be normalized. If + * one or more vectors have zero length, implementation behavior + * is undefined. If the two vectors are linearly dependent, + * behavior is undefined. + * + * This is in the same coordinate system as OpenGL; y=up, z=back, x=right. + */ + SGVec3d sgv_at = _orientation.backTransform(-SGVec3d::e3()); + SGVec3d sgv_up = _orientation.backTransform(SGVec3d::e2()); + _at_up_vec[0] = sgv_at[0]; + _at_up_vec[1] = sgv_at[1]; + _at_up_vec[2] = sgv_at[2]; + _at_up_vec[3] = sgv_up[0]; + _at_up_vec[4] = sgv_up[1]; + _at_up_vec[5] = sgv_up[2]; + + // static const SGQuatd q(-0.5, -0.5, 0.5, 0.5); + // SGQuatd hlOr = SGQuatd::fromLonLat(SGGeod::fromCart(_base_pos)); + // SGQuatd ec2body = hlOr*_orientation; + _absolute_pos = _base_pos; // + ec2body.backTransform( _offset_pos ); +} + bool SGSoundMgr::load(string &samplepath, void **dbuf, int *fmt, size_t *sz, int *frq ) { @@ -533,6 +582,32 @@ bool SGSoundMgr::load(string &samplepath, void **dbuf, int *fmt, return true; } +vector SGSoundMgr::get_available_devices() +{ + vector devices; + const ALCchar *s; + + if (alcIsExtensionPresent(NULL, "ALC_enumerate_all_EXT") == AL_TRUE) { + s = alcGetString(NULL, ALC_ALL_DEVICES_SPECIFIER); + } else { + s = alcGetString(NULL, ALC_DEVICE_SPECIFIER); + } + + if (s) { + ALCchar *nptr, *ptr = (ALCchar *)s; + + nptr = ptr; + while (*(nptr += strlen(ptr)+1) != 0) + { + devices.push_back(ptr); + ptr = nptr; + } + devices.push_back(ptr); + } + + return devices; +} + bool SGSoundMgr::testForError(void *p, string s) {