IsStreamingFromDisk

stepmania/src/RageSound.cpp

@@ -156,8 +156,9 @@ public:
 	int SetPosition_Accurate(int ms)  { return 0; }
 	int SetPosition_Fast(int ms) { return 0; }
 	int Read(char *buf, unsigned len) { return 0; }
-	int GetSampleRate() const { return 44100; }
 	SoundReader *Copy() const { return new RageSoundReader_Silence; }
+	int GetSampleRate() const { return 44100; }
+	bool IsStreamingFromDisk() const { return false; }
 };
 
 
@@ -790,6 +791,11 @@ int RageSound::GetSampleRate() const
 	return Sample->GetSampleRate();
 }
 
+bool RageSound::IsStreamingFromDisk() const
+{
+	ASSERT( Sample );
+	return Sample->IsStreamingFromDisk();
+}
 
 bool RageSound::SetPositionFrames( int frames )
 {

stepmania/src/RageSound.h

@@ -22,6 +22,7 @@ public:
 	virtual float GetVolume() const = 0;
 	virtual int GetID() const = 0;
 	virtual CString GetLoadedFilePath() const = 0;
+	virtual bool IsStreamingFromDisk() const = 0;
 };
 
 /* These are parameters to play a sound.  These are normally changed before playing begins,
@@ -104,6 +105,7 @@ public:
 	float GetLengthSeconds();
 	float GetPositionSeconds( bool *approximate=NULL, RageTimer *Timestamp=NULL ) const;
 	int GetSampleRate() const;
+	bool IsStreamingFromDisk() const;
 	bool SetPositionSeconds( float fSeconds );
 	CString GetLoadedFilePath() const { return m_sFilePath; }
 	bool IsPlaying() const { return playing; }

stepmania/src/RageSoundReader.h

@@ -22,6 +22,7 @@ public:
 	virtual SoundReader *Copy() const = 0;
 	virtual int GetSampleRate() const = 0;
 	virtual unsigned GetNumChannels() const { return 2; } /* 1 or 2 */
+	virtual bool IsStreamingFromDisk() const = 0;
 
 	bool Error() const { return !error.empty(); }
 	string GetError() const { return error; }

stepmania/src/RageSoundReader_FileReader.h

@@ -23,6 +23,7 @@ public:
 		OPEN_FATAL_ERROR=2,
 	};
 	virtual OpenResult Open(CString filename) = 0;
+	virtual bool IsStreamingFromDisk() const { return true; }
 
 	static SoundReader *OpenFile( CString filename, CString &error );
 private:

stepmania/src/RageSoundReader_Preload.h

@@ -46,6 +46,7 @@ public:
 	int Read(char *buf, unsigned len);
 	int GetSampleRate() const { return samplerate; }
 	unsigned GetNumChannels() const { return channels; }
+	bool IsStreamingFromDisk() const { return false; }
 
 	SoundReader *Copy() const;
 	~SoundReader_Preload() { }

stepmania/src/RageSoundReader_Resample_Fast.h

@@ -33,6 +33,7 @@ public:
 
 	int GetSampleRate() const { return samplerate; }
 	unsigned GetNumChannels() const { return source->GetNumChannels(); }
+	bool IsStreamingFromDisk() const { return source->IsStreamingFromDisk(); }
 };
 
 #endif

stepmania/src/RageSoundReader_Resample_Good.h

@@ -25,6 +25,7 @@ public:
 
 	int GetSampleRate() const { return samplerate; }
 	unsigned GetNumChannels() const { return source->GetNumChannels(); }
+	bool IsStreamingFromDisk() const { return source->IsStreamingFromDisk(); }
 
 	enum { BUFSIZE = 4096 };