From 25c4d9b6202be1a116787ec4e228f3c5c8a6587d Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Mon, 26 Aug 2002 20:46:13 +0000
Subject: [PATCH] Minor tweaks to sound subsystem update rates.

---
 src/Main/main.cxx        | 13 ++-----------
 src/Scenery/newcache.cxx |  6 +++---
 src/Sound/soundmgr.cxx   | 16 ++++------------
 src/Sound/soundmgr.hxx   |  1 -
 4 files changed, 9 insertions(+), 27 deletions(-)

diff --git a/src/Main/main.cxx b/src/Main/main.cxx
index 2e1df4a68..508398564 100644
--- a/src/Main/main.cxx
+++ b/src/Main/main.cxx
@@ -1087,17 +1087,8 @@ static void fgMainLoop( void ) {
 #ifdef ENABLE_AUDIO_SUPPORT
     if ( fgGetBool("/sim/sound/audible")
            && globals->get_soundmgr()->is_working() ) {
-        static double dt = 0.0;
-        static double sound_update_rate = 0.05;
-
-        dt += delta_time_sec;
-
-	// Updating four times a second should be enough
-        if ( dt >= sound_update_rate ) {
-	    globals->get_fx()->update( dt );
-	    globals->get_soundmgr()->update( dt );
-            dt = 0.0;
-        }
+        globals->get_fx()->update( delta_time_sec );
+        globals->get_soundmgr()->update( delta_time_sec );
     }
 #endif
 
diff --git a/src/Scenery/newcache.cxx b/src/Scenery/newcache.cxx
index 5b822595a..5b3c31492 100644
--- a/src/Scenery/newcache.cxx
+++ b/src/Scenery/newcache.cxx
@@ -206,9 +206,9 @@ long FGNewCache::get_oldest_tile() {
         }
     }
 
-    SG_LOG( SG_TERRAIN, SG_INFO, "    min_time = " << min_time );
-    SG_LOG( SG_TERRAIN, SG_INFO, "    index = " << min_index );
-    SG_LOG( SG_TERRAIN, SG_INFO, "    max_time = " << max_time );
+    SG_LOG( SG_TERRAIN, SG_DEBUG, "    min_time = " << min_time );
+    SG_LOG( SG_TERRAIN, SG_DEBUG, "    index = " << min_index );
+    SG_LOG( SG_TERRAIN, SG_DEBUG, "    max_time = " << max_time );
 
     return min_index;
 }
diff --git a/src/Sound/soundmgr.cxx b/src/Sound/soundmgr.cxx
index 2b7e25576..7faa4be4a 100644
--- a/src/Sound/soundmgr.cxx
+++ b/src/Sound/soundmgr.cxx
@@ -146,7 +146,6 @@ FGSoundMgr::~FGSoundMgr() {
 
 // initialize the sound manager
 void FGSoundMgr::init() {
-    last.stamp();
     safety = FG_MAX_SOUND_SAFETY;
 
     // audio_mixer -> setMasterVolume ( 80 ) ;  /* 80% of max volume. */
@@ -191,18 +190,11 @@ void FGSoundMgr::unbind ()
 
 
 // run the audio scheduler
-void FGSoundMgr::update(double dt) {
-				// FIXME: use dt supplied (seconds)
-    SGTimeStamp current;
-    current.stamp();
-
-    double elapsed = (double)(current - last) / 1000000.0;
-    last = current;
-
-    if ( elapsed > safety ) {
-	safety = elapsed;
+void FGSoundMgr::update( double dt ) {
+    if ( dt > safety ) {
+	safety = dt;
     } else {
-	safety = safety * 0.99 + elapsed * 0.01;
+	safety = safety * 0.99 + dt * 0.01;
     }
     if ( safety > FG_MAX_SOUND_SAFETY ) {
 	safety = FG_MAX_SOUND_SAFETY;
diff --git a/src/Sound/soundmgr.hxx b/src/Sound/soundmgr.hxx
index d9e9dd8fb..3e89b225b 100644
--- a/src/Sound/soundmgr.hxx
+++ b/src/Sound/soundmgr.hxx
@@ -114,7 +114,6 @@ class FGSoundMgr : public FGSubsystem
     sound_map sounds;
     sample_map samples;
 
-    SGTimeStamp last;
     double safety;
 
 public:
-- 
2.39.5