remove cruft - unused _size in audio-buffers

libs/ardour/ardour/audio_buffer.h

@@ -173,7 +173,6 @@ public:
 	void set_data (Sample* data, size_t size) {
 		assert(!_owns_data); // prevent leaks
 		_capacity = size;
-		_size = size;
 		_data = data;
 		_silent = false;
 		_written = false;
@@ -185,8 +184,6 @@ public:
 	 */
 	void resize (size_t nframes);
 
-	bool empty() const { return _size == 0; }
-
 	const Sample* data (framecnt_t offset = 0) const {
 		assert(offset <= _capacity);
 		return _data + offset;
@@ -198,7 +195,7 @@ public:
 		return _data + offset;
 	}
 
-	bool check_silence (pframes_t, bool, pframes_t&) const;
+	bool check_silence (pframes_t, pframes_t&) const;
 
 	void prepare () { _written = false; _silent = false; }
 	bool written() const { return _written; }

libs/ardour/ardour/buffer.h

@@ -46,16 +46,9 @@ public:
 	/** Factory function */
 	static Buffer* create(DataType type, size_t capacity);
 
-	/** Maximum capacity of buffer.
+	/** Maximum capacity of buffer. */
-	 * Note in some cases the entire buffer may not contain valid data, use size. */
 	size_t capacity() const { return _capacity; }
 
-	/** Amount of valid data in buffer.  Use this over capacity almost always. */
-	size_t size() const { return _size; }
-
-	/** Return true if the buffer contains no data, false otherwise */
-	virtual bool empty() const { return _size == 0; }
-
 	/** Type of this buffer.
 	 * Based on this you can static cast a Buffer* to the desired type. */
 	DataType type() const { return _type; }
@@ -80,12 +73,11 @@ public:
 
   protected:
 	Buffer(DataType type)
-		: _type(type), _capacity(0), _size(0), _silent (true)
+		: _type(type), _capacity(0), _silent (true)
 	{}
 
 	DataType  _type;
 	pframes_t _capacity;
-	pframes_t _size;
 	bool      _silent;
 };
 

libs/ardour/ardour/midi_buffer.h

@@ -48,6 +48,8 @@ public:
 	uint8_t* reserve(TimeType time, size_t size);
 
 	void resize(size_t);
+	size_t size() const { return _size; }
+	bool empty() const { return _size == 0; }
 
 	bool merge_in_place(const MidiBuffer &other);
 
@@ -159,6 +161,7 @@ private:
 	friend class iterator_base< const MidiBuffer, const Evoral::MIDIEvent<TimeType> >;
 
 	uint8_t* _data; ///< timestamp, event, timestamp, event, ...
+	pframes_t _size;
 };
 
 

libs/ardour/audio_buffer.cc

@@ -57,12 +57,6 @@ AudioBuffer::resize (size_t size)
 
 	if (_data && size < _capacity) {
 		/* buffer is already large enough */
-		
-		if (size < _size) {
-			/* truncate */
-			_size = size;
-		}
-
 		return;
 	}
 
@@ -71,14 +65,13 @@ AudioBuffer::resize (size_t size)
 	cache_aligned_malloc ((void**) &_data, sizeof (Sample) * size);
 
 	_capacity = size;
-	_size = 0;
 	_silent = false;
 }
 
 bool
-AudioBuffer::check_silence (pframes_t nframes, bool wholebuffer, pframes_t& n) const
+AudioBuffer::check_silence (pframes_t nframes, pframes_t& n) const
 {
-	for (n = 0; (wholebuffer || n < _size) &&  n < nframes; ++n) {
+	for (n = 0; n < nframes; ++n) {
 		if (_data[n] != Sample (0)) {
 			return false;
 		}