LV2: Add plugin Air

5 files changed, 284 insertions, 1 deletions

diff --git a/plugins/LV2/CMakeLists.txt b/plugins/LV2/CMakeLists.txt
index 0ddeafe..2896693 100755
--- a/plugins/LV2/CMakeLists.txt
+++ b/plugins/LV2/CMakeLists.txt
@@ -12,7 +12,7 @@ include_directories(include)
 add_airwindows_plugin(Acceleration)
 add_airwindows_plugin(ADClip7)
 add_airwindows_plugin(ADT)
-# add_airwindows_plugin(Air)
+add_airwindows_plugin(Air)
 # add_airwindows_plugin(Apicolypse)
 # add_airwindows_plugin(AQuickVoiceClip)
 # add_airwindows_plugin(AtmosphereBuss)
diff --git a/plugins/LV2/src/Air/Air.cpp b/plugins/LV2/src/Air/Air.cpp
new file mode 100644
index 0000000..0783317
--- /dev/null
+++ b/plugins/LV2/src/Air/Air.cpp
@@ -0,0 +1,94 @@
+#include "Air.h"
+#include <iostream>
+#include <lv2wrapper.h>
+
+namespace {
+
+enum class PortIndex : uint32_t {
+    TAP22,
+    TAP15,
+    TAP11,
+    FILTERS_Q,
+    OUTPUT,
+    DRY_WET,
+    IN_L,
+    IN_R,
+    OUT_L,
+    OUT_R,
+};
+
+} // anon namespace
+
+Air::Air(double rate)
+    : LV2Plugin(rate)
+{
+}
+
+void Air::connect_port(uint32_t port, void * data)
+{
+    switch (static_cast<PortIndex>(port)) {
+        case PortIndex::TAP22:
+            tap22 = static_cast<const float *>(data);
+            break;
+
+        case PortIndex::TAP15:
+            tap15 = static_cast<const float *>(data);
+            break;
+
+        case PortIndex::TAP11:
+            tap11 = static_cast<const float *>(data);
+            break;
+
+        case PortIndex::FILTERS_Q:
+            filters_q = static_cast<const float *>(data);
+            break;
+
+        case PortIndex::OUTPUT:
+            out_level = static_cast<const float *>(data);
+            break;
+
+        case PortIndex::DRY_WET:
+            dry_wet = static_cast<const float *>(data);
+            break;
+
+        case PortIndex::IN_L:
+            in[0] = static_cast<const float *>(data);
+            break;
+
+        case PortIndex::IN_R:
+            in[1] = static_cast<const float *>(data);
+            break;
+
+        case PortIndex::OUT_L:
+            out[0] = static_cast<float *>(data);
+            break;
+
+        case PortIndex::OUT_R:
+            out[1] = static_cast<float *>(data);
+            break;
+
+        default:
+            std::cerr << "Invalid port " << port << ": ignoring." << std::endl;
+    }
+}
+
+void Air::run(uint32_t num_samples)
+{
+    A = *tap22;
+    B = *tap15;
+    C = *tap11;
+    D = *filters_q;
+    E = *out_level;
+    F = *dry_wet;
+
+    processReplacing(const_cast<float **>(in), out, num_samples);
+}
+
+//
+// Include the processing code from the VST version.
+//
+#include <cmath>
+#include "../../../LinuxVST/src/Air/AirProc.cpp"
+
+// Create the LV2Wrapper and register the plugin
+LV2Wrapper<Air> air;
diff --git a/plugins/LV2/src/Air/Air.h b/plugins/LV2/src/Air/Air.h
new file mode 100644
index 0000000..580650a
--- /dev/null
+++ b/plugins/LV2/src/Air/Air.h
@@ -0,0 +1,93 @@
+#ifndef __Air_H
+#define __Air_H
+
+#include <cstdint>
+#include <lv2plugin.h>
+
+class Air : protected LV2Plugin {
+public:
+    Air(double rate);
+
+    void connect_port(uint32_t port, void * data);
+    void run(uint32_t num_samples);
+
+    static constexpr const char * URI = "https://www.airwindows.com/air";
+
+private:
+    /*
+     * These are the original DSP functions from the VST plugin.
+     * They need to be called from the LV2 plugins `run` function.
+     */
+    void processReplacing(float **in, float **out, VstInt32 samples);
+    void processDoubleReplacing(double **in, double **out, VstInt32 samples);
+
+    const float * tap22;
+    const float * tap15;
+    const float * tap11;
+    const float * filters_q;
+    const float * out_level;
+    const float * dry_wet;
+
+    const float * in[2];
+    float * out[2];
+
+    /*
+     * Members needed by the processing functions.
+     */
+	double airPrevAL;
+	double airEvenAL;
+	double airOddAL;
+	double airFactorAL;
+	double airPrevBL;
+	double airEvenBL;
+	double airOddBL;
+	double airFactorBL;
+	double airPrevCL;
+	double airEvenCL;
+	double airOddCL;
+	double airFactorCL;
+	double tripletPrevL;
+	double tripletMidL;
+	double tripletAL;
+	double tripletBL;
+	double tripletCL;
+	double tripletFactorL;
+
+	double airPrevAR;
+	double airEvenAR;
+	double airOddAR;
+	double airFactorAR;
+	double airPrevBR;
+	double airEvenBR;
+	double airOddBR;
+	double airFactorBR;
+	double airPrevCR;
+	double airEvenCR;
+	double airOddCR;
+	double airFactorCR;
+	double tripletPrevR;
+	double tripletMidR;
+	double tripletAR;
+	double tripletBR;
+	double tripletCR;
+	double tripletFactorR;
+
+	bool flipA;
+	bool flipB;
+	bool flop;
+	int count;
+
+	long double fpNShapeL;
+	long double fpNShapeR;
+    //
+	//default stuff
+
+    float A;
+    float B;
+    float C;
+    float D; //parameters. Always 0-1, and we scale/alter them elsewhere.
+	float E;
+	float F;
+};
+
+#endif
diff --git a/plugins/LV2/src/Air/Air.ttl b/plugins/LV2/src/Air/Air.ttl
new file mode 100644
index 0000000..0bcffc9
--- /dev/null
+++ b/plugins/LV2/src/Air/Air.ttl
@@ -0,0 +1,84 @@
+# Airwindows Air plugin description
+
+@prefix lv2:   <http://lv2plug.in/ns/lv2core#> .
+@prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix units: <http://lv2plug.in/ns/extensions/units#> .
+
+<https://www.airwindows.com/air>
+    a lv2:Plugin ,
+        lv2:DelayPlugin ;
+    lv2:project <https://www.airwindows.com> ;
+
+    lv2:optionalFeature lv2:hardRTCapable ;
+
+    # Define the ports for this plugin.
+    lv2:port [
+      a lv2:InputPort , lv2:ControlPort ;
+      lv2:index 0 ;
+      lv2:symbol "A" ;
+      lv2:name "22K tap" ;
+      lv2:default 0.5 ;
+      lv2:minimum 0.0 ;
+      lv2:maximum 1.0 ;
+    ] , [
+      a lv2:InputPort , lv2:ControlPort ;
+      lv2:index 1 ;
+      lv2:symbol "B" ;
+      lv2:name "15K tap" ;
+      lv2:default 0.5 ;
+      lv2:minimum 0.0 ;
+      lv2:maximum 1.0 ;
+    ] , [
+      a lv2:InputPort , lv2:ControlPort ;
+      lv2:index 2 ;
+      lv2:symbol "C" ;
+      lv2:name "11K tap" ;
+      lv2:default 0.5 ;
+      lv2:minimum 0.0 ;
+      lv2:maximum 1.0 ;
+    ] , [
+      a lv2:InputPort , lv2:ControlPort ;
+      lv2:index 3 ;
+      lv2:symbol "D" ;
+      lv2:name "filters Q" ;
+      lv2:default 0.5 ;
+      lv2:minimum 1.0 ;
+      lv2:maximum 1.0 ;
+    ] , [
+      a lv2:InputPort , lv2:ControlPort ;
+      lv2:index 4 ;
+      lv2:symbol "E" ;
+      lv2:name "Output level" ;
+      lv2:default 0.5 ;
+      lv2:minimum 1.0 ;
+      lv2:maximum 1.0 ;
+    ] , [
+      a lv2:InputPort , lv2:ControlPort ;
+      lv2:index 5 ;
+      lv2:symbol "F" ;
+      lv2:name "Dry/Wet" ;
+      lv2:default 0.5 ;
+      lv2:minimum 0.0 ;
+      lv2:maximum 1.0 ;
+    ] , [
+      a lv2:InputPort , lv2:AudioPort ;
+      lv2:index 6 ;
+      lv2:symbol "in_l" ;
+      lv2:name "In left" ;
+    ] , [
+      a lv2:InputPort , lv2:AudioPort ;
+      lv2:index 7 ;
+      lv2:symbol "in_r" ;
+      lv2:name "In right" ;
+    ] , [
+      a lv2:OutputPort , lv2:AudioPort ;
+      lv2:index 8 ;
+      lv2:symbol "out_l" ;
+      lv2:name "Out left" ;
+    ] , [
+      a lv2:OutputPort , lv2:AudioPort ;
+      lv2:index 9 ;
+      lv2:symbol "out_r" ;
+      lv2:name "Out right" ;
+    ] .
diff --git a/plugins/LV2/src/Air/manifest.ttl.in b/plugins/LV2/src/Air/manifest.ttl.in
new file mode 100644
index 0000000..9bcf114
--- /dev/null
+++ b/plugins/LV2/src/Air/manifest.ttl.in
@@ -0,0 +1,12 @@
+# LV2 Plugin manifest for airwindows Air plugin
+
+@prefix doap:  <http://usefulinc.com/ns/doap#> .
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<https://www.airwindows.com/air>
+    a lv2:Plugin ;
+    doap:name "Airwindows Air" ;
+    doap:license <http://opensource.org/licenses/mit> ;
+    lv2:binary <Air@CMAKE_SHARED_LIBRARY_SUFFIX@> ;
+    rdfs:seeAlso <Air.ttl> .