#include <simgear/misc/sg_path.hxx>
#include <simgear/math/SGMath.hxx>
+extern bool isNaN(float *v);
#define MAX_SOURCES 128
_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) {
}
// 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);
return;
}
+ if (_context != NULL)
+ SG_LOG(SG_GENERAL, SG_ALERT, "context is already assigned");
_context = context;
_working = true;
_at_up_vec[0] = 0.0; _at_up_vec[1] = 0.0; _at_up_vec[2] = -1.0;
_at_up_vec[3] = 0.0; _at_up_vec[4] = 1.0; _at_up_vec[5] = 0.0;
- alListenerf( AL_GAIN, 0.2f );
+ alListenerf( AL_GAIN, 0.0f );
alListenerfv( AL_ORIENTATION, _at_up_vec );
alListenerfv( AL_POSITION, SGVec3f::zeros().data() );
alListenerfv( AL_VELOCITY, SGVec3f::zeros().data() );
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");
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!");
}
+}
+
+void SGSoundMgr::activate() {
+ if ( _working ) {
+ _active = true;
+ 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->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->activate();
+ sgrp->stop();
}
-}
-// stop the sound manager
-void SGSoundMgr::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;
- while(_buffers.size()){
- buffers_current = _buffers.begin();
- refUint ref = buffers_current->second;
- ALuint buffer = ref.id;
- alDeleteBuffers(1, &buffer);
- _buffers.erase( buffers_current );
- }
-
_context = alcGetCurrentContext();
_device = alcGetContextsDevice(_context);
alcDestroyContext(_context);
alcCloseDevice(_device);
+ _context = NULL;
}
}
void SGSoundMgr::suspend() {
- if (_active) {
+ if (_working) {
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->suspend();
+ sgrp->stop();
}
_active = false;
}
}
void SGSoundMgr::resume() {
- if (!_active) {
+ if (_working) {
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 ) {
// delete free sources
for (unsigned int i=0; i<_free_sources.size(); i++) {
- ALuint source = _free_sources.at( i );
+ ALuint source = _free_sources[i];
alDeleteSources( 1 , &source );
}
}
// 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 ) {
}
if (_changed) {
+#if 0
+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
alListenerf( AL_GAIN, _volume );
alListenerfv( AL_ORIENTATION, _at_up_vec );
- alListenerfv( AL_POSITION, toVec3f(_position).data() );
- alListenerfv( AL_VELOCITY, toVec3f(_velocity).data() );
+ // 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;
+ }
+
+ alListenerfv( AL_VELOCITY, toVec3f(velocity).data() );
// alDopplerVelocity(340.3); // TODO: altitude dependent
testForALError("update");
_changed = false;
}
+
+ alcProcessContext(_context);
}
}
return false;
}
- if (_working) sgrp->activate();
+ if (_active) sgrp->activate();
_sample_groups[refname] = sgrp;
return true;
return false;
}
- _sample_groups.erase( refname );
+ _sample_groups.erase( sample_grp_it );
return true;
}
// sample group was not found.
if (create) {
SGSampleGroup* sgrp = new SGSampleGroup(this, refname);
+ add( sgrp, refname );
return sgrp;
}
else
_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
_free_sources.pop_back();
_sources_in_use.push_back(source);
}
+ else
+ SG_LOG( SG_GENERAL, SG_INFO, "No more free sources available\n");
return source;
}
alSourceStop( source );
testForALError("release source");
- _free_sources.push_back(source);
- _sources_in_use.erase(it, it+1);
+ alSourcei( source, AL_BUFFER, 0 );
+ _free_sources.push_back( source );
+ _sources_in_use.erase( it );
}
}
void *data;
load(sample_name, &data, &format, &size, &freq);
- sample->set_data( (unsigned char *)data );
+ sample->set_data( &data );
sample->set_frequency( freq );
sample->set_format( format );
sample->set_size( size );
// 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() ) sample->free_data();
if ( !testForALError("buffer add data") ) {
sample->set_buffer(buffer);
}
}
}
- else
+ else {
buffer = sample->get_buffer();
+}
return buffer;
}
void SGSoundMgr::release_buffer(SGSoundSample *sample)
{
string sample_name = sample->get_sample_name();
-
buffer_map_iterator buffer_it = _buffers.find( sample_name );
if ( buffer_it == _buffers.end() ) {
// buffer was not found
buffer_it->second.refctr--;
if (buffer_it->second.refctr == 0) {
ALuint buffer = buffer_it->second.id;
- _buffers.erase( buffer_it );
alDeleteBuffers(1, &buffer);
+ _buffers.erase( buffer_it );
testForALError("release buffer");
}
}
+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 )
{
+ if ( !_working ) return false;
+
ALenum format;
ALsizei size;
ALsizei freq;
ALenum error = alGetError();
if ( error != AL_NO_ERROR ) {
string msg = "Failed to load wav file: ";
- msg.append(alutGetErrorString(error));
+ msg.append(alGetString(error));
throw sg_io_exception(msg.c_str(), sg_location(samplepath));
return false;
}
return true;
}
+vector<const char*> SGSoundMgr::get_available_devices()
+{
+ vector<const char*> 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)
{
projects / simgear.git / blobdiff