added dynamic sound lib

panda/src/audio/audioManager.cxx

@@ -20,18 +20,59 @@
 #include "config_audio.h"
 #include "audioManager.h"
 
-#ifdef HAVE_SYS_SOUNDCARD_H
-  #include "linuxAudioManager.h"
-#elif defined(HAVE_RAD_MSS)
-  #include "milesAudioManager.h"
-#else
-  #include "nullAudioManager.h"
-#endif
+#include "nullAudioManager.h"
+
+#include "load_dso.h"
+
+namespace {
+  AudioManager* create_NullAudioManger() {
+    audio_debug("create_NullAudioManger()");
+    return new NullAudioManager();
+  }
+}
+
+Create_AudioManager_proc* AudioManager::_create_AudioManager=create_NullAudioManger;
+
+void AudioManager::
+register_AudioManager_creator(Create_AudioManager_proc* proc) {
+  nassertv(_create_AudioManager==create_NullAudioManger);
+  _create_AudioManager=proc;
+}
 
 
 // Factory method for getting a platform specific AudioManager:
-AudioManager* AudioManager::create_AudioManager() {
-  return new NAME_MACRO_FOR_AUDIO_MANAGER();
+AudioManager* AudioManager::
+create_AudioManager() {
+  audio_debug("create_AudioManager()\n  audio_library_name=\""
+      <<*audio_library_name<<"\"");
+  static lib_load;
+  if (!lib_load) {
+    lib_load=1;
+    if (!audio_library_name->empty() && *audio_library_name != "null") {
+      Filename dl_name = Filename::dso_filename("lib"+*audio_library_name+".so");
+      dl_name.to_os_specific();
+      audio_debug("  dl_name=\""<<dl_name<<"\"");
+      void* lib = load_dso(dl_name);
+      if (!lib) {
+        audio_error("  LoadLibrary() failed, will use NullAudioManager");
+        audio_error("    "<<load_dso_error());
+        nassertr(_create_AudioManager==create_NullAudioManger, 0);
+      } else {
+        // ...the library will register itself with the AudioManager.
+        #if defined(WIN32) && !defined(NDEBUG) //[
+          const int bufLen=256;
+          char path[bufLen];
+          DWORD count = GetModuleFileName((HMODULE)lib, path, bufLen);
+          if (count) {
+            audio_debug("  GetModuleFileName() \""<<path<<"\"");
+          } else {
+            audio_debug("  GetModuleFileName() failed.");
+          }
+        #endif //]
+      }
+    }
+  }
+  return (*_create_AudioManager)();
 }
 
 

panda/src/audio/audioManager.h

@@ -23,6 +23,9 @@
 #include "config_audio.h"
 #include "audioSound.h"
 
+typedef AudioManager* Create_AudioManager_proc();
+
+
 class EXPCL_PANDA AudioManager {
 PUBLISHED:
   // Create an AudioManager for each category of sounds you have.
@@ -62,7 +65,12 @@ PUBLISHED:
   virtual void set_active(bool flag) = 0;
   virtual bool get_active() = 0;
 
+public:
+  static void register_AudioManager_creator(Create_AudioManager_proc* proc);
+
 protected:
+  static Create_AudioManager_proc* _create_AudioManager;
+
   AudioManager() {
     // intentionally blank.
   }