# include <AL/alut.h>
#endif
+#ifndef ALC_ALL_DEVICES_SPECIFIER
+# define ALC_ALL_DEVICES_SPECIFIER 0x1013
+#endif
+
#include <simgear/compiler.h>
#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/math/SGMathFwd.hxx>
SGSoundMgr();
~SGSoundMgr();
- void init();
+ void init(const char *devname = NULL);
void bind();
void unbind();
- void update(double dt) {};
- void update_late(double dt);
+ void update(double dt);
void suspend();
void resume();
SGSampleGroup *find( const string& refname, bool create = false );
/**
- * Set the position of the sound manager.
- * This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
+ * Set the Cartesian position of the sound manager.
* @param pos OpenAL listener position
*/
- void set_position( const SGVec3d& pos ) {
- _position = pos;
- _changed = true;
+ void set_position( const SGVec3d& pos, const SGGeod& pos_geod ) {
+ _base_pos = pos; _geod_pos = pos_geod; _changed = true;
+ }
+
+ void set_position_offset( const SGVec3d& pos ) {
+ _offset_pos = pos; _changed = true;
}
/**
* This is in the same coordinate system as OpenGL; y=up, z=back, x=right
* @return OpenAL listener position
*/
- SGVec3f get_position() { return toVec3f(_position); }
+ SGVec3d& get_position() { return _absolute_pos; }
/**
- * Set the velocity vector of the sound manager
- * This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
- * @param vel Velocity vector of the OpenAL listener
+ * Set the velocity vector (in meters per second) of the sound manager
+ * This is the horizontal local frame; x=north, y=east, z=down
+ * @param Velocity vector
*/
- void set_velocity( SGVec3d& dir ) {
- _velocity = dir;
- _changed = true;
+ void set_velocity( const SGVec3d& vel ) {
+ _velocity = vel; _changed = true;
}
/**
* Set the orientation of the sound manager
* @param ori Quaternation containing the orientation information
*/
- void set_orientation( SGQuatd ori );
+ void set_orientation( const SGQuatd& ori ) {
+ _orientation = ori; _changed = true;
+ }
/**
* Get the orientation of the sound manager
*/
inline bool has_changed() { return _changed; }
+ /**
+ * Some implementations seem to need the velocity miltyplied by a
+ * factor of 100 to make them distinct. I've not found if this is
+ * a problem in the implementation or in out code. Until then
+ * this function is used to detect the problematic implementations.
+ */
+ inline bool bad_doppler_effect() { return _bad_doppler; }
+
/**
* Load a sample file and return it's configuration and data.
* @param samplepath Path to the file to load
bool load(string &samplepath, void **data, int *format,
size_t *size, int *freq );
+ /**
+ * Get a list of available playback devices.
+ */
+ vector<const char*> get_available_devices();
+
+ /**
+ * Get the current OpenAL vendor or rendering backend.
+ */
+ const string& get_vendor() { return _vendor; }
+ const string& get_renderer() { return _renderer; }
+
private:
static int _alut_init;
ALCcontext *_context;
// Position of the listener.
- SGVec3d _position;
+ SGVec3d _absolute_pos;
+ SGVec3d _offset_pos;
+ SGVec3d _base_pos;
+ SGGeod _geod_pos;
// Velocity of the listener.
SGVec3d _velocity;
vector<ALuint> _free_sources;
vector<ALuint> _sources_in_use;
- char *_devname;
+ bool _bad_doppler;
+ string _renderer;
+ string _vendor;
bool testForALError(string s);
bool testForALCError(string s);
bool testForALUTError(string s);
bool testForError(void *p, string s);
+ void update_pos_and_orientation();
void update_sample_config( SGSampleGroup *sound );
};