Add Zita reverb (stereo and ambisonic variant).

git-svn-id: http://svn.drobilla.net/lad/trunk/plugins/fomp.lv2@5395 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 125 insertions, 0 deletions

diff --git a/src/reverbs.cc b/src/reverbs.cc
new file mode 100644
index 0000000..9e8e5af
--- /dev/null
+++ b/src/reverbs.cc
@@ -0,0 +1,125 @@
+// -----------------------------------------------------------------------
+//
+//  Copyright (C) 2003-2014 Fons Adriaensen <fons@linuxaudio.org>
+//    
+//  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 <stdio.h>
+#include <math.h>
+#include "reverbs.h"
+
+
+void Ladspa_zita_reverb::setport (PortIndex port, PortData *data)
+{
+	_port [port] = (float*)data;
+}
+
+
+void Ladspa_zita_reverb::active (bool act)
+{
+    if (! act)
+    {
+        _zreverb->reset ();
+	_nprep = 0;
+    }
+}
+
+
+void Ladspa_zita_reverb::runproc (SampleCount frames, bool add)
+{
+    unsigned long k;
+    float *inp [2] = { _port [A_INPL], _port [A_INPR] };
+    float *out [2] = { _port [A_OUTL], _port [A_OUTR] };
+
+    _zreverb->set_delay (_port [C_DELAY][0]);   
+    _zreverb->set_xover (_port [C_XOVER][0]);   
+    _zreverb->set_rtlow (_port [C_RTLOW][0]);   
+    _zreverb->set_rtmid (_port [C_RTMID][0]);   
+    _zreverb->set_fdamp (_port [C_FDAMP][0]);   
+    _zreverb->set_eq1 (_port [C_FREQ1][0], _port [C_GAIN1][0]);
+    _zreverb->set_eq2 (_port [C_FREQ2][0], _port [C_GAIN2][0]);
+    _zreverb->set_opmix (_port [C_OPMIX][0]);
+    while (frames)
+    {
+	if (!_nprep)
+	{
+	    _zreverb->prepare (FRAGM);
+	    _nprep = FRAGM;
+	}
+	k = (_nprep < frames) ? _nprep : frames;
+        _zreverb->process (k, inp, out);
+        inp [0] += k;
+        inp [1] += k;
+        out [0] += k;
+        out [1] += k;
+	frames -= k;
+	_nprep -= k;
+    }
+}
+
+
+
+void Ladspa_zita_reverb_amb::setport (PortIndex port, PortData *data)
+{
+	_port [port] = (float*)data;
+}
+
+
+void Ladspa_zita_reverb_amb::active (bool act)
+{
+    if (! act)
+    {
+        _zreverb->reset ();
+	_nprep = 0;
+    }
+}
+
+
+void Ladspa_zita_reverb_amb::runproc (SampleCount frames, bool add)
+{
+    unsigned long k;
+    float *inp [2] = { _port [A_INPL], _port [A_INPR] };
+    float *out [4] = { _port [A_OUTW], _port [A_OUTX], _port [A_OUTY], _port [A_OUTZ] };
+
+    _zreverb->set_delay (_port [C_DELAY][0]);   
+    _zreverb->set_xover (_port [C_XOVER][0]);   
+    _zreverb->set_rtlow (_port [C_RTLOW][0]);   
+    _zreverb->set_rtmid (_port [C_RTMID][0]);   
+    _zreverb->set_fdamp (_port [C_FDAMP][0]);   
+    _zreverb->set_eq1 (_port [C_FREQ1][0], _port [C_GAIN1][0]);
+    _zreverb->set_eq2 (_port [C_FREQ2][0], _port [C_GAIN2][0]);
+    _zreverb->set_rgxyz (_port [C_RGXYZ][0]);
+    while (frames)
+    {
+	if (!_nprep)
+	{
+	    _zreverb->prepare (FRAGM);
+	    _nprep = FRAGM;
+	}
+	k = (_nprep < frames) ? _nprep : frames;
+        _zreverb->process (k, inp, out);
+        inp [0] += k;
+        inp [1] += k;
+        out [0] += k;
+        out [1] += k;
+        out [2] += k;
+        out [3] += k;
+	frames -= k;
+	_nprep -= k;
+    }
+}