fix(simu): SDL sound init in libsimulator (#6456)

Co-authored-by: raphaelcoeffic <1050031+raphaelcoeffic@users.noreply.github.com>

companion/src/CMakeLists.txt

@@ -49,7 +49,7 @@ endif()
 
 if(SDL2_FOUND)
   include_directories(${SDL2_INCLUDE_DIRS})
-  add_definitions(-DJOYSTICKS)
+  add_definitions(-DJOYSTICKS -DSIMU_AUDIO)
   if(TARGET SDL2::SDL2)
     set(SDL2_LIBRARIES SDL2::SDL2)
   endif()

radio/src/audio.cpp

@@ -35,6 +35,10 @@
 #include "model_audio.h"
 #include "hal/audio_driver.h"
 
+#if defined(SIMU) && !defined(SIMU_AUDIO)
+void audioConsumeCurrentBuffer() {}
+#endif
+
 extern mutex_handle_t audioMutex;
 
 // Only first quadrant values - other quadrants calulated taking advantage of symmetry in sine wave.

radio/src/targets/simu/CMakeLists.txt

@@ -7,19 +7,11 @@ endif()
 
 target_compile_options(radiolib_native PUBLIC -DSIMU)
 
-if(SDL2_FOUND)
-  option(SIMU_AUDIO "Enable simulator audio." ON)
-  if(SIMU_AUDIO)
-    target_compile_options(radiolib_native PUBLIC -DSIMU_AUDIO)
-  endif()
-endif()
-
 set(SIMU_DRIVERS
   simpgmspace.cpp
   simufatfs.cpp
   simudisk.cpp
   simulcd.cpp
-  simuaudio.cpp
   switch_driver.cpp
   adc_driver.cpp
   module_drivers.cpp
@@ -47,7 +39,8 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 if(SDL2_FOUND)
   include_directories(${SDL2_INCLUDE_DIRS})
-  add_definitions(-DJOYSTICKS)
+  target_compile_options(radiolib_native PUBLIC -DSIMU_AUDIO)
+  list(APPEND SIMU_DRIVERS simuaudio.cpp)
   if(TARGET SDL2::SDL2)
     set(SDL2_LIBRARIES SDL2::SDL2)
   endif()

radio/src/targets/simu/simuaudio.h

@@ -21,5 +21,10 @@
 
 #pragma once
 
+#if defined(SIMU_AUDIO)
 bool simuAudioInit();
 void simuAudioDeInit();
+#else
+static inline bool simuAudioInit() { return false; }
+static inline void simuAudioDeInit() {}
+#endif