Detect AeonWave and if it is installed use it, otherwise fall back to OpenAL. Also let get_available_devices() use C++ strings instead of const char*

CMakeLists.txt

@@ -126,7 +126,7 @@ option(ENABLE_RTI       "Set to ON to build SimGear with RTI support" OFF)
 option(ENABLE_GDAL      "Set to ON to build SimGear with GDAL support" OFF)
 option(ENABLE_TESTS     "Set to OFF to disable building SimGear's test applications" ON)
 option(ENABLE_SOUND     "Set to OFF to disable building SimGear's sound support" ON)
-option(USE_AEONWAVE     "Set to ON to use AeonWave instead of OpenAL" OFF)
+option(USE_AEONWAVE     "Set to ON to use AeonWave instead of OpenAL" ON)
 option(ENABLE_PKGUTIL   "Set to ON to build the sg_pkgutil application (default)" ON)
 option(ENABLE_DNS       "Set to ON to use udns library and DNS service resolver" ON)
 option(ENABLE_SIMD      "Enable SSE/SSE2 support for x86 compilers" ON)
@@ -222,12 +222,18 @@ else()
 
     if (ENABLE_SOUND)
         if (USE_AEONWAVE)
-            find_package(AAX COMPONENTS aax REQUIRED)
+            find_package(AAX)
-        else()
+        endif()
+
+        if(NOT AAX_FOUND)
             find_package(OpenAL REQUIRED)
         endif()
 
-        message(STATUS "Sound support: ENABLED")
+        if(AAX_FOUND)
+            message(STATUS "Sound support: AeonWave")
+        else()
+            message(STATUS "Sound support: OpenAL")
+        endif()
     endif(ENABLE_SOUND)
 
     find_package(OpenSceneGraph 3.2.0 REQUIRED osgText osgSim osgDB osgParticle osgGA osgViewer osgUtil)

CMakeModules/FindAAX.cmake

@@ -1,14 +1,19 @@
-# Locate AAX
+# Try to find AAX (AeonWave)
 # This module defines
-# AAX_LIBRARIES
+#
-# AAX_FOUND, if false, do not try to link to AAX 
+# AAX_FOUND - if false, do not try to link to AAX
-# AAX_INCLUDE_DIR, where to find the headers
+# AAX_INCLUDE_DIR - where to find the headers
+# AAX_LIBRARIES - Link these to use AAX
+#
+# Copyright (C) 2016-2018 by Erik Hofman.
+# Copyright (C) 2016-2018 by Adalin B.V.
 #
 # $AAXDIR is an environment variable that would
 # correspond to the ./configure --prefix=$AAXDIR
 # used in building AAX.
 #
-# Created by Erik Hofman.
+# This file is Public Domain (www.unlicense.org)
+# This is free and unencumbered software released into the public domain.
 
 FIND_PATH(AAX_INCLUDE_DIR aax/aax.h
   HINTS

README.OpenAL

@@ -1,20 +0,0 @@
-[This file is mirrored in both the FlightGear and SimGear packages.]
-
-You *must* have the development components of OpenAL installed on your system
-to build FlightGear!"  You can get a copy here:
-
-      http://connect.creativelabs.com/openal/default.aspx
-
-Build notes:
-
-You can download a versioned release of the openal library from 
-http://www.openal.org/downloads.html. Download the openal source,
-release 0.0.8 (dated February 11, 2006) and run:  
-tar xjvf openal-soft-1.5.304.tar.bz2
-cd openal-soft-1.5.304/
-ccmake .
-
-[ While running ccmake: press 'c' to configure, press 'c' once more, and
-  then press 'g' to generate and exit ]
-
-

README.sound

@@ -0,0 +1,39 @@
+[This file is mirrored in both the FlightGear and SimGear packages.]
+
+For Sound support FlightGear requires one of the two following packages:
+- OpenAL
+- AeonWave
+
+== OpenAL ===
+
+You *must* have the development components of OpenAL installed on your system
+to build FlightGear!"  You can get a copy here:
+
+      http://connect.creativelabs.com/openal/default.aspx
+
+Build notes:
+
+You can download a versioned release of the openal library from
+http://www.openal.org/downloads.html. Download the openal source,
+release 0.0.8 (dated February 11, 2006) and run:
+tar xjvf openal-soft-1.5.304.tar.bz2
+cd openal-soft-1.5.304/
+ccmake .
+
+[ While running ccmake: press 'c' to configure, press 'c' once more, and
+  then press 'g' to generate and exit ]
+
+
+== AeonWave ===
+
+For FlightGear AeonWave has a number of advantages over OpenAL:
+* Correct Doppler effect behavior
+* Default distance attenuation frequency filtering
+* Native support for 29 types of audio formats.
+* Native support for wav, mp3, vorbis and raw file formats.
+
+The source code of AeonWave can be found on GitHub:
+https://github.com/adalinbv
+
+Optimized binary packages are available at:
+http://www.adalin.com/

simgear/simgear_config_cmake.h.in

@@ -25,5 +25,6 @@
 
 #cmakedefine SYSTEM_EXPAT
 #cmakedefine ENABLE_SOUND
+#cmakedefine USE_AEONWAVE
 #cmakedefine ENABLE_SIMD
 #cmakedefine ENABLE_GDAL

simgear/sound/soundmgr.hxx

@@ -314,7 +314,7 @@ public:
     /**
      * Get a list of available playback devices.
      */
-    std::vector<const char*> get_available_devices();
+    std::vector<std::string> get_available_devices();
 
     /**
      * Get the current OpenAL vendor or rendering backend.

simgear/sound/soundmgr_aeonwave.cxx

@@ -75,10 +75,6 @@ public:
 
     ~SoundManagerPrivate()
     {
-        for (auto it = _devices.begin(); it != _devices.end(); ++it) {
-            free((void*)*it);
-        }
-        _devices.clear();
         _sample_groups.clear();
     }
 
@@ -125,8 +121,6 @@ public:
     }
 
     sample_group_map _sample_groups;
-
-    std::vector<const char*> _devices;
 };
 
 
@@ -444,7 +438,7 @@ unsigned int  SGSoundMgr::request_buffer(SGSoundSample *sample)
         std::string sample_name = sample->get_sample_name();
 
         aax::Buffer& buf = d->_aax.buffer(sample_name);
-        if (!buf) {
+        if (sample->is_file() && !buf) {
             SG_LOG(SG_SOUND, SG_ALERT,
                    "Unable to create buffer: " << sample_name);
             sample->set_buffer( SGSoundMgr::FAILED_BUFFER );
@@ -561,6 +555,7 @@ void SGSoundMgr::sample_play( SGSoundSample *sample )
         if (bufid == SGSoundMgr::FAILED_BUFFER ||
             bufid == SGSoundMgr::NO_BUFFER)
         {
+printf("A: release: %i, bufid: %i (%i, %i)\n", sample->get_source(), bufid, SGSoundMgr::FAILED_BUFFER, SGSoundMgr::NO_BUFFER);
             release_source(sample->get_source());
             return;
         }
@@ -646,6 +641,8 @@ void SGSoundMgr::update_sample_config( SGSoundSample *sample, SGVec3d& position,
     aax::Emitter& emitter = d->get_emitter(sample->get_source());
     aax::dsp dsp;
 
+    if (emitter != d->nullEmitter)
+    {
         aax::Vector64 pos = position.data();
         aax::Vector ori = orientation.data();
         aax::Vector vel = velocity.data();
@@ -675,10 +672,15 @@ void SGSoundMgr::update_sample_config( SGSoundSample *sample, SGVec3d& position,
             TRY( emitter.set(dsp) );
        }
     }
+    else {
+        SG_LOG( SG_SOUND, SG_ALERT, "Error: source: " << sample->get_source() << " not found");
+    }
+}
 
 
-vector<const char*> SGSoundMgr::get_available_devices()
+vector<std::string> SGSoundMgr::get_available_devices()
 {
+    vector<std::string> devices;
 #ifdef ENABLE_SOUND
     std::string on = " on ";
     std::string colon = ": ";
@@ -690,12 +692,12 @@ vector<const char*> SGSoundMgr::get_available_devices()
                 else if (*r) name += on + r;
                 else if (*i) name += colon + i;
 
-                d->_devices.push_back( strdup(name.c_str()) );
+                devices.push_back( name );
             }
         }
     }
 #endif
-    return d->_devices;
+    return devices;
 }
 
 

simgear/sound/soundmgr_openal.cxx

@@ -821,9 +821,9 @@ bool SGSoundMgr::load( const std::string &samplepath,
     return true;
 }
 
-vector<const char*> SGSoundMgr::get_available_devices()
+vector<std::string> SGSoundMgr::get_available_devices()
 {
-    vector<const char*> devices;
+    vector<std::string> devices;
 #ifdef ENABLE_SOUND
     const ALCchar *s;