//
// C++-ified by Curtis Olson, started March 2001.
//
-// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2001 Curtis L. Olson - http://www.flightgear.org/~curt
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
//
// $Id$
-#include <iostream>
+#include <simgear/compiler.h>
#if defined(__APPLE__)
# include <OpenAL/al.h>
# include <AL/alc.h>
#endif
+#if defined (__APPLE__)
+// any C++ header file undefines isinf and isnan
+// so this should be included before <iostream>
+inline int (isinf)(double r) { return isinf(r); }
+inline int (isnan)(double r) { return isnan(r); }
+#endif
+
+#if defined(__MINGW32__)
+#define isnan(x) _isnan(x)
+#endif
+
+#if defined (__FreeBSD__)
+# if __FreeBSD_version < 500000
+ extern "C" {
+ inline int isnan(double r) { return !(r <= 0 || r >= 0); }
+ }
+# endif
+#endif
+
+#include STL_IOSTREAM
+
#include <simgear/debug/logstream.hxx>
#include <simgear/misc/sg_path.hxx>
// constructor
SGSoundMgr::SGSoundMgr() {
- SG_LOG( SG_GENERAL, SG_ALERT, "Initializing OpenAL sound manager" );
+ SG_LOG( SG_GENERAL, SG_INFO, "Initializing OpenAL sound manager" );
// initialize OpenAL
alutInit( 0, NULL );
- alGetError();
+ atexit(alutExit);
+
if ( alGetError() == AL_NO_ERROR) {
working = true;
} else {
listener_ori[4] = 1.0;
listener_ori[5] = 0.0;
+ alListenerf( AL_GAIN, 0.0f );
alListenerfv( AL_POSITION, listener_pos );
alListenerfv( AL_VELOCITY, listener_vel );
alListenerfv( AL_ORIENTATION, listener_ori );
SG_LOG( SG_GENERAL, SG_ALERT,
"Oops AL error after audio initialization!" );
}
+
+ // exaggerate the ear candy?
+ alDopplerFactor(1.0);
+ alDopplerVelocity(340.0); // speed of sound in meters per second.
}
// destructor
SGSoundSample *sample = sample_current->second;
delete sample;
}
-
- alutExit();
}
return true;
}
}
+
+
+// set source position of all managed sounds
+void SGSoundMgr::set_source_pos_all( ALfloat *pos ) {
+ if ( isnan(pos[0]) || isnan(pos[1]) || isnan(pos[2]) ) {
+ // bail if a bad position is passed in
+ return;
+ }
+
+ sample_map_iterator sample_current = samples.begin();
+ sample_map_iterator sample_end = samples.end();
+ for ( ; sample_current != sample_end; ++sample_current ) {
+ SGSoundSample *sample = sample_current->second;
+ sample->set_source_pos( pos );
+ }
+}
+
+
+// set source velocity of all managed sounds
+void SGSoundMgr::set_source_vel_all( ALfloat *vel ) {
+ if ( isnan(vel[0]) || isnan(vel[1]) || isnan(vel[2]) ) {
+ // bail if a bad velocity is passed in
+ return;
+ }
+
+ sample_map_iterator sample_current = samples.begin();
+ sample_map_iterator sample_end = samples.end();
+ for ( ; sample_current != sample_end; ++sample_current ) {
+ SGSoundSample *sample = sample_current->second;
+ sample->set_source_vel( vel );
+ }
+}