Made OpenAL context management more intelligent, in analogy to OpenGL context management. OpenAL contexts now only exist as long as AlResources require them and are destroyed when they are no longer required. Fixes #30.

include/SFML/Audio/AlResource.hpp

@@ -0,0 +1,70 @@
+////////////////////////////////////////////////////////////
+//
+// SFML - Simple and Fast Multimedia Library
+// Copyright (C) 2007-2014 Laurent Gomila (laurent.gom@gmail.com)
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it freely,
+// subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented;
+//    you must not claim that you wrote the original software.
+//    If you use this software in a product, an acknowledgment
+//    in the product documentation would be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such,
+//    and must not be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+//
+////////////////////////////////////////////////////////////
+
+#ifndef SFML_ALRESOURCE_HPP
+#define SFML_ALRESOURCE_HPP
+
+////////////////////////////////////////////////////////////
+// Headers
+////////////////////////////////////////////////////////////
+#include <SFML/Audio/Export.hpp>
+
+
+namespace sf
+{
+////////////////////////////////////////////////////////////
+/// \brief Base class for classes that require an OpenAL context
+///
+////////////////////////////////////////////////////////////
+class SFML_AUDIO_API AlResource
+{
+protected:
+
+    ////////////////////////////////////////////////////////////
+    /// \brief Default constructor
+    ///
+    ////////////////////////////////////////////////////////////
+    AlResource();
+
+    ////////////////////////////////////////////////////////////
+    /// \brief Destructor
+    ///
+    ////////////////////////////////////////////////////////////
+    ~AlResource();
+};
+
+} // namespace sf
+
+
+#endif // SFML_ALRESOURCE_HPP
+
+////////////////////////////////////////////////////////////
+/// \class sf::AlResource
+/// \ingroup audio
+///
+/// This class is for internal use only, it must be the base
+/// of every class that requires a valid OpenAL context in
+/// order to work.
+///
+////////////////////////////////////////////////////////////

include/SFML/Audio/SoundBuffer.hpp

@@ -29,6 +29,7 @@
 // Headers
 ////////////////////////////////////////////////////////////
 #include <SFML/Audio/Export.hpp>
+#include <SFML/Audio/AlResource.hpp>
 #include <SFML/System/Time.hpp>
 #include <string>
 #include <vector>
@@ -49,7 +50,7 @@ class InputStream;
 /// \brief Storage for audio samples defining a sound
 ///
 ////////////////////////////////////////////////////////////
-class SFML_AUDIO_API SoundBuffer
+class SFML_AUDIO_API SoundBuffer : AlResource
 {
 public:
 

include/SFML/Audio/SoundRecorder.hpp

@@ -29,6 +29,7 @@
 // Headers
 ////////////////////////////////////////////////////////////
 #include <SFML/Audio/Export.hpp>
+#include <SFML/Audio/AlResource.hpp>
 #include <SFML/System/Thread.hpp>
 #include <SFML/System/Time.hpp>
 #include <vector>
@@ -41,7 +42,7 @@ namespace sf
 /// \brief Abstract base class for capturing sound data
 ///
 ////////////////////////////////////////////////////////////
-class SFML_AUDIO_API SoundRecorder
+class SFML_AUDIO_API SoundRecorder : AlResource
 {
 public:
 

include/SFML/Audio/SoundSource.hpp

@@ -29,6 +29,7 @@
 // Headers
 ////////////////////////////////////////////////////////////
 #include <SFML/Audio/Export.hpp>
+#include <SFML/Audio/AlResource.hpp>
 #include <SFML/System/Vector3.hpp>
 
 
@@ -38,7 +39,7 @@ namespace sf
 /// \brief Base class defining a sound's properties
 ///
 ////////////////////////////////////////////////////////////
-class SFML_AUDIO_API SoundSource
+class SFML_AUDIO_API SoundSource : AlResource
 {
 public: