-// sample.cxx -- Sound sample encapsulation class
+// sample_openal.cxx -- Audio sample encapsulation class
//
// Written by Curtis Olson, started April 2004.
+// Modified to match the new SoundSystem by Erik Hofman, October 2009
//
// Copyright (C) 2004 Curtis L. Olson - http://www.flightgear.org/~curt
+// Copyright (C) 2009 Erik Hofman <erik@ehofman.com>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
# include <simgear_config.h>
#endif
+#include <stdlib.h> // rand()
+
#include <simgear/debug/logstream.hxx>
#include <simgear/structure/exception.hxx>
#include <simgear/misc/sg_path.hxx>
// empty constructor
SGSoundSample::SGSoundSample() :
- _absolute_pos(SGVec3d::zeros().data()),
- _relative_pos(SGVec3f::zeros().data()),
- _base_pos(SGVec3d::zeros().data()),
- _direction(SGVec3f::zeros().data()),
- _velocity(SGVec3f::zeros().data()),
- _sample_name(""),
+ _absolute_pos(SGVec3d::zeros()),
+ _relative_pos(SGVec3d::zeros()),
+ _direction(SGVec3d::zeros()),
+ _velocity(SGVec3d::zeros()),
+ _orientation(SGQuatd::zeros()),
+ _orivec(SGVec3f::zeros()),
+ _base_pos(SGGeod()),
+ _refname(random_string()),
_data(NULL),
_format(AL_FORMAT_MONO8),
_size(0),
// constructor
SGSoundSample::SGSoundSample( const char *path, const char *file ) :
- _absolute_pos(SGVec3d::zeros().data()),
- _relative_pos(SGVec3f::zeros().data()),
- _base_pos(SGVec3d::zeros().data()),
- _direction(SGVec3f::zeros().data()),
- _velocity(SGVec3f::zeros().data()),
+ _absolute_pos(SGVec3d::zeros()),
+ _relative_pos(SGVec3d::zeros()),
+ _direction(SGVec3d::zeros()),
+ _velocity(SGVec3d::zeros()),
+ _orientation(SGQuatd::zeros()),
+ _orivec(SGVec3f::zeros()),
+ _base_pos(SGGeod()),
_format(AL_FORMAT_MONO8),
_size(0),
_freq(0),
if ( strlen(file) ) {
samplepath.append( file );
}
- _sample_name = samplepath.str();
+ _refname = samplepath.str();
SG_LOG( SG_GENERAL, SG_DEBUG, "From file sounds sample = "
<< samplepath.str() );
}
// constructor
-SGSoundSample::SGSoundSample( unsigned char *data, int len, int freq, int format ) :
- _absolute_pos(SGVec3d::zeros().data()),
- _relative_pos(SGVec3f::zeros().data()),
- _base_pos(SGVec3d::zeros().data()),
- _direction(SGVec3f::zeros().data()),
- _velocity(SGVec3f::zeros().data()),
- _data(data),
+SGSoundSample::SGSoundSample( std::auto_ptr<unsigned char>& data,
+ int len, int freq, int format ) :
+ _absolute_pos(SGVec3d::zeros()),
+ _relative_pos(SGVec3d::zeros()),
+ _direction(SGVec3d::zeros()),
+ _velocity(SGVec3d::zeros()),
+ _orientation(SGQuatd::zeros()),
+ _orivec(SGVec3f::zeros()),
+ _base_pos(SGGeod()),
+ _refname(random_string()),
+ _data(data.release()),
_format(format),
_size(len),
_freq(freq),
_static_changed(true),
_is_file(false)
{
- _sample_name = "unknown, data supplied by caller";
SG_LOG( SG_GENERAL, SG_DEBUG, "In memory sounds sample" );
}
// destructor
SGSoundSample::~SGSoundSample() {
-#if 0
- if (_data != NULL) {
- delete[] _data;
- _data = NULL;
- }
-#endif
}
-void SGSoundSample::set_base_position( SGVec3d pos ) {
- _base_pos = pos;
+void SGSoundSample::set_orientation( const SGQuatd& ori ) {
+ _orientation = ori;
update_absolute_position();
_changed = true;
}
-void SGSoundSample::set_relative_position( SGVec3f pos ) {
- _relative_pos = pos;
+void SGSoundSample::set_direction( const SGVec3d& dir ) {
+ _direction = dir;
update_absolute_position();
_changed = true;
}
-void SGSoundSample::set_orientation( SGVec3f dir ) {
- _direction = dir;
+void SGSoundSample::set_relative_position( const SGVec3f& pos ) {
+ _relative_pos = toVec3d(pos);
+ update_absolute_position();
+ _changed = true;
+}
+
+void SGSoundSample::set_position( const SGGeod& pos ) {
+ _base_pos = pos;
update_absolute_position();
_changed = true;
}
void SGSoundSample::update_absolute_position() {
- SGQuatf orient = SGQuatf::fromAngleAxis(_direction);
- SGVec3f modified_relative_pos = orient.transform(_relative_pos);
- _absolute_pos = _base_pos + toVec3d(modified_relative_pos);
+ SGQuatd orient = SGQuatd::fromLonLat(_base_pos) * _orientation;
+ _orivec = -toVec3f(orient.rotate(_direction));
+
+ orient = SGQuatd::fromRealImag(0, _relative_pos) * _orientation;
+ _absolute_pos = -SGVec3d::fromGeod(_base_pos); // -orient.rotate(SGVec3d::e1());
+}
+
+string SGSoundSample::random_string() {
+ static const char *r = "0123456789abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+ string rstr;
+ for (int i=0; i<10; i++) {
+ rstr.push_back( r[rand() % strlen(r)] );
+ }
+
+ return rstr;
}