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App/util/Sound.h

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+/* Copyright 2003-2014 ROBLOX Corporation, All Rights Reserved */
+
+#pragma once
+
+#include "v8tree/Instance.h"
+#include "Reflection/Event.h"
+
+#define FMOD_RESOURCES_FREED_STRING "FMOD System already closed.  Resources previously freed."
+
+namespace FMOD
+{
+	class System;
+	class Sound;
+	class Channel;
+	class ChannelGroup;
+	class DSP;
+}
+
+namespace RBX 
+{
+	namespace Soundscape
+	{
+		// A wrapper of contentId we expose to lua as a type
+		class SoundId : public ContentId
+		{
+		public:
+			SoundId(const ContentId& id):ContentId(id) {}
+			SoundId(const char* id):ContentId(id) {}
+			SoundId(const std::string& id):ContentId(id) {}
+			SoundId() {}
+		};
+
+		// essentially a wrapper for FMOD::Sound with some extra info
+		class Sound : boost::noncopyable
+		{
+			FMOD::Sound* fmod_sound;
+			shared_ptr<FMOD::System> const system;
+			int refCount;  // Sadly, we can't use shared_ptr logic to manage the lifetime of fmod_sound
+			bool isStreaming;
+
+		public:
+			SoundId const id;
+			bool const is3D;
+			Sound(shared_ptr<FMOD::System>& system, SoundId id, bool is3D):fmod_sound(0),system(system),id(id),is3D(is3D),refCount(0),isStreaming(false) {}
+			~Sound() { release(); }
+			FMOD::Sound* get() {return fmod_sound;}
+			FMOD::Sound* tryLoad(const RBX::Instance* context);
+			void detatch() { fmod_sound = 0; }
+			void release();
+
+			bool isReferenced() const { return refCount > 0; }
+			void acquire() { ++refCount; }
+			void unacquire() { refCount = std::max(0, refCount - 1); }
+
+			bool getIsStreaming() const { return isStreaming; }
+		};
+	} // namespace Soundscape
+} // namespace RBX