+
+ /**
+ * set overall volume for the application.
+ * @param vol 1.0 is default, must be greater than 0
+ */
+ inline void set_volume( const ALfloat vol ) {
+ if ( vol > 0.0 ) {
+ alListenerf( AL_GAIN, vol );
+ }
+ }
+
+ /**
+ * set the position of the listener (in opengl coordinates)
+ */
+ inline void set_listener_pos( ALfloat *pos ) {
+ listener_pos[0] = pos[0];
+ listener_pos[1] = pos[1];
+ listener_pos[2] = pos[2];
+ alListenerfv( AL_POSITION, listener_pos );
+ }
+
+ /**
+ * set the velocity of the listener (in opengl coordinates)
+ */
+ inline void set_listener_vel( ALfloat *vel ) {
+ listener_vel[0] = vel[0];
+ listener_vel[1] = vel[1];
+ listener_vel[2] = vel[2];
+#ifdef USE_OPEN_AL_DOPPLER
+ alListenerfv( AL_VELOCITY, listener_vel );
+#endif
+ }
+
+ /**
+ * 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.
+ */
+ inline void set_listener_orientation( ALfloat *ori ) {
+ listener_ori[0] = ori[0];
+ listener_ori[1] = ori[1];
+ listener_ori[2] = ori[2];
+ listener_ori[3] = ori[3];
+ listener_ori[4] = ori[4];
+ listener_ori[5] = ori[5];
+ alListenerfv( AL_ORIENTATION, listener_ori );
+ }
+
+ /**
+ * set the positions of all managaged sound sources
+ */
+ void set_source_pos_all( ALfloat *pos );
+
+ /**
+ * set the velocities of all managaged sound sources
+ */
+ void set_source_vel_all( ALfloat *pos );