Remove VolumeLUT; SoundMacro mixing appears to be linear

CMakeLists.txt

@@ -27,7 +27,6 @@ set(SOURCES
     lib/SongConverter.cpp
     lib/SongState.cpp
     lib/Voice.cpp
-    lib/VolumeLUT.c
     lib/Submix.cpp
     lib/Studio.cpp
     lib/EffectReverb.cpp

lib/Engine.cpp

@@ -384,12 +384,10 @@ std::shared_ptr<Sequencer> Engine::seqPlay(int groupId, int songId, const unsign
     return {};
 }
 
-extern "C" const float VolumeLUT[];
-
 /** Set total volume of engine */
 void Engine::setVolume(float vol)
 {
-    m_backend.setVolume(VolumeLUT[int(clamp(0.f, vol, 1.f) * 65536)] * 1.46245869f);
+    m_backend.setVolume(vol);
 }
 
 /** Find voice from VoiceId */

lib/Voice.cpp

@@ -12,7 +12,6 @@
 
 namespace amuse
 {
-extern "C" const float VolumeLUT[];
 
 void Voice::_destroy()
 {
@@ -193,8 +192,7 @@ std::list<std::shared_ptr<Voice>>::iterator Voice::_destroyVoice(std::list<std::
 template <typename T>
 static T ApplyVolume(float vol, T samp)
 {
-    /* -10dB to 0dB mapped to full volume range */
-    return samp * VolumeLUT[int(vol * 65536)];
+    return samp * 0.5f * vol;
 }
 
 void Voice::_procSamplePre(int16_t& samp)