Huge engine change, replace all std::shared_ptrs

Create a new shared pointer type stdext::shared_object_ptr and stdext::shared_obj
using boost::intrusive_ptr

Advantages:
 * half memory usage
 * faster and lightweight

Disadvantages:
 * using weak_ptr is not supported anymore
 * compiling seems slower

src/framework/sound/declarations.h

@@ -38,11 +38,11 @@ class StreamSoundSource;
 class CombinedSoundSource;
 class OggSoundFile;
 
-typedef std::shared_ptr<SoundSource> SoundSourcePtr;
-typedef std::shared_ptr<SoundFile> SoundFilePtr;
-typedef std::shared_ptr<SoundBuffer> SoundBufferPtr;
-typedef std::shared_ptr<StreamSoundSource> StreamSoundSourcePtr;
-typedef std::shared_ptr<CombinedSoundSource> CombinedSoundSourcePtr;
-typedef std::shared_ptr<OggSoundFile> OggSoundFilePtr;
+typedef stdext::shared_object_ptr<SoundSource> SoundSourcePtr;
+typedef stdext::shared_object_ptr<SoundFile> SoundFilePtr;
+typedef stdext::shared_object_ptr<SoundBuffer> SoundBufferPtr;
+typedef stdext::shared_object_ptr<StreamSoundSource> StreamSoundSourcePtr;
+typedef stdext::shared_object_ptr<CombinedSoundSource> CombinedSoundSourcePtr;
+typedef stdext::shared_object_ptr<OggSoundFile> OggSoundFilePtr;
 
 #endif

src/framework/sound/soundbuffer.h

@@ -27,7 +27,7 @@
 
 #include <framework/util/databuffer.h>
 
-class SoundBuffer
+class SoundBuffer : public stdext::shared_object
 {
 public:
     SoundBuffer();

src/framework/sound/soundfile.h

@@ -26,7 +26,7 @@
 #include "declarations.h"
 #include <framework/core/filestream.h>
 
-class SoundFile
+class SoundFile : public stdext::shared_object
 {
 public:
     SoundFile(const FileStreamPtr& fileStream);

src/framework/sound/soundsource.h

@@ -24,8 +24,9 @@
 #define SOUNDSOURCE_H
 
 #include "declarations.h"
+#include "soundbuffer.h"
 
-class SoundSource
+class SoundSource : public stdext::shared_object
 {
 protected:
     SoundSource(uint sourceId) : m_sourceId(sourceId) { }