-
-private:
- // Prevent copies (undefined)
- Buffer(const Buffer& copy);
- void operator=(const Buffer& other);
-};
-
-
-/* Inside every class with a type in it's name is a template waiting to get out... */
-
-
-/** Buffer containing 32-bit floating point (audio) data. */
-class AudioBuffer : public Buffer
-{
-public:
- AudioBuffer(size_t capacity);
-
- ~AudioBuffer();
-
- void silence(jack_nframes_t len, jack_nframes_t offset=0)
- {
- assert(_capacity > 0);
- assert(offset + len <= _capacity);
- memset(_data + offset, 0, sizeof (Sample) * len);
- }
-
- /** Read @a len frames FROM THE START OF @a src into self at @a offset */
- void read_from(const Buffer& src, jack_nframes_t len, jack_nframes_t offset)
- {
- assert(_capacity > 0);
- assert(src.type() == _type == DataType::AUDIO);
- assert(offset + len <= _capacity);
- memcpy(_data + offset, ((AudioBuffer&)src).data(len), sizeof(Sample) * len);
- }
-
- /** Accumulate (add)@a len frames FROM THE START OF @a src into self at @a offset */
- void accumulate_from(const AudioBuffer& src, jack_nframes_t len, jack_nframes_t offset)
- {
- assert(_capacity > 0);
- assert(offset + len <= _capacity);
-
- Sample* const dst_raw = _data + offset;
- const Sample* const src_raw = src.data(len);
-
- for (jack_nframes_t n = 0; n < len; ++n) {
- dst_raw[n] += src_raw[n];
- }
- }
-
- /** Accumulate (add) @a len frames FROM THE START OF @a src into self at @a offset
- * scaling by @a gain_coeff */
- void accumulate_with_gain_from(const AudioBuffer& src, jack_nframes_t len, jack_nframes_t offset, gain_t gain_coeff)
- {
- assert(_capacity > 0);
- assert(offset + len <= _capacity);
-
- Sample* const dst_raw = _data + offset;
- const Sample* const src_raw = src.data(len);
-
- for (jack_nframes_t n = 0; n < len; ++n) {
- dst_raw[n] += src_raw[n] * gain_coeff;
- }
- }
-
- /** Set the data contained by this buffer manually (for setting directly to jack buffer).
- *
- * Constructor MUST have been passed capacity=0 or this will die (to prevent mem leaks).
- */
- void set_data(Sample* data, size_t size)
- {
- assert(!_owns_data); // prevent leaks
- _capacity = size;
- _size = size;
- _data = data;
- }
-
- const Sample* data(jack_nframes_t nframes, jack_nframes_t offset=0) const
- { assert(offset + nframes <= _capacity); return _data + offset; }
-
- Sample* data(jack_nframes_t nframes, jack_nframes_t offset=0)
- { assert(offset + nframes <= _capacity); return _data + offset; }
-
-private:
- // These are undefined (prevent copies)
- AudioBuffer(const AudioBuffer& copy);
- AudioBuffer& operator=(const AudioBuffer& copy);
-
- bool _owns_data;
- Sample* _data; ///< Actual buffer contents