1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*
Copyright (C) 2014 Waves Audio Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "waves_audioport.h"
#include "ardour/runtime_functions.h"
#include "pbd/malign.h"
using namespace ARDOUR;
WavesAudioPort::WavesAudioPort (const std::string& port_name, PortFlags flags)
: WavesDataPort (port_name, flags)
{
aligned_malloc ((void**)&_buffer, MAX_BUFFER_SIZE_BYTES, 32 /*32 byte alignment*/);
memset (_buffer, 0, MAX_BUFFER_SIZE_BYTES);
}
WavesAudioPort::~WavesAudioPort ()
{
aligned_free (_buffer);
}
void* WavesAudioPort::get_buffer (pframes_t nframes)
{
if (is_input ()) {
std::vector<WavesDataPort*>::const_iterator it = get_connections ().begin ();
if (it != get_connections ().end ()) {
/* In fact, the static casting to (const WavesAudioPort*) is not that safe.
* However, mixing the buffers is assumed in the time critical conditions.
* Base class WavesDataPort takes is supposed to provide enough consistentcy
* of the connections.
*/
// get first buffer data
// use optimized function to fill the buffer intialy
ARDOUR::copy_vector (_buffer, ((const WavesAudioPort*)*it)->const_buffer (), nframes);
++it;
// mix the rest
for (; it != get_connections ().end (); ++it) {
Sample* tgt = buffer ();
const Sample* src = ((const WavesAudioPort*)*it)->const_buffer ();
// use otimized function to mix the buffers
ARDOUR::mix_buffers_no_gain (tgt, src, nframes);
}
}
}
return _buffer;
}
void
WavesAudioPort::_wipe_buffer()
{
memset (_buffer, 0, sizeof (_buffer));
}
|
